function Instrumenter(options) {
this.opts = options || {
debug: false,
walkDebug: false,
coverageVariable: '__coverage__',
codeGenerationOptions: undefined,
noAutoWrap: false,
noCompact: false,
embedSource: false,
preserveComments: false,
esModules: false
};
if (this.opts.esModules && !this.opts.noAutoWrap) {
this.opts.noAutoWrap = true;
if (this.opts.debug) {
console.log('Setting noAutoWrap to true as required by esModules');
}
}
this.walker = new Walker({
ArrowFunctionExpression: [ this.arrowBlockConverter ],
ExpressionStatement: this.coverStatement,
ExportNamedDeclaration: this.coverExport,
BreakStatement: this.coverStatement,
ContinueStatement: this.coverStatement,
DebuggerStatement: this.coverStatement,
ReturnStatement: this.coverStatement,
ThrowStatement: this.coverStatement,
TryStatement: [ this.paranoidHandlerCheck, this.coverStatement],
VariableDeclaration: this.coverStatement,
IfStatement: [ this.ifBlockConverter, this.coverStatement, this.ifBranchInjector ],
ForStatement: [ this.skipInit, this.loopBlockConverter, this.coverStatement ],
ForInStatement: [ this.skipLeft, this.loopBlockConverter, this.coverStatement ],
ForOfStatement: [ this.skipLeft, this.loopBlockConverter, this.coverStatement ],
WhileStatement: [ this.loopBlockConverter, this.coverStatement ],
DoWhileStatement: [ this.loopBlockConverter, this.coverStatement ],
SwitchStatement: [ this.coverStatement, this.switchBranchInjector ],
SwitchCase: [ this.switchCaseInjector ],
WithStatement: [ this.withBlockConverter, this.coverStatement ],
FunctionDeclaration: [ this.coverFunction, this.coverStatement ],
FunctionExpression: this.coverFunction,
LabeledStatement: this.coverStatement,
ConditionalExpression: this.conditionalBranchInjector,
LogicalExpression: this.logicalExpressionBranchInjector,
ObjectExpression: this.maybeAddType,
MetaProperty: this.coverMetaProperty,
}, this.extractCurrentHint, this, this.opts.walkDebug);
//unit testing purposes only
if (this.opts.backdoor && this.opts.backdoor.omitTrackerSuffix) {
this.omitTrackerSuffix = true;
}
}n/a
function Module(id = '', parent) {
this.id = id;
this.path = path.dirname(id);
this.exports = {};
this.parent = parent;
updateChildren(parent, this, false);
this.filename = null;
this.loaded = false;
this.children = [];
}n/a
assertOrThrow = function (passed, msg) {
/*
* this function will throw err.<msg> if <passed> is falsy
*/
if (passed) {
return;
}
throw (
(
msg
&& typeof msg.message === "string"
&& typeof msg.stack === "string"
)
// if msg is err, then leave as is
? msg
: new Error(
typeof msg === "string"
// if msg is a string, then leave as is
? msg
// else JSON.stringify msg
: JSON.stringify(msg, undefined, 4)
)
);
}...
argList: local.coalesce(commandList[ii][1], "").trim(),
command: [
key
],
description: commandList[ii][2]
};
} catch (ignore) {
local.assertOrThrow(undefined, new Error(
"cliRun - cannot parse comment in COMMAND "
+ key
+ ":\nnew RegExp("
+ JSON.stringify(opt.rgxComment.source)
+ ").exec(" + JSON.stringify(str).replace((
/\\\\/g
), "\u0000").replace((
...cliRun = function (opt) {
/*
* this function will run cli with given <opt>
*/
local.cliDict._eval = local.cliDict._eval || function () {
/*
* <code>
* will eval <code>
*/
globalThis.local = local;
local.vm.runInThisContext(process.argv[3]);
};
local.cliDict._help = local.cliDict._help || function () {
/*
*
* will print help
*/
let commandList;
let file;
let packageJson;
let str;
let strDict;
commandList = [
{
argList: "<arg2> ...",
description: "usage:",
command: [
"<arg1>"
]
}, {
argList: "'console.log(\"hello world\")'",
description: "example:",
command: [
"--eval"
]
}
];
file = __filename.replace((
/.*\//
), "");
opt = Object.assign({}, opt);
packageJson = require("./package.json");
// validate comment
opt.rgxComment = opt.rgxComment || (
/\)\u0020\{\n(?:|\u0020{4})\/\*\n(?:\u0020|\u0020{5})\*((?:\u0020<[^>]*?>|\u0020\.\.\.)*?)\n(?:\u0020|\u0020{5})\*\u0020
(will\u0020.*?\S)\n(?:\u0020|\u0020{5})\*\/\n(?:\u0020{4}|\u0020{8})\S/
);
strDict = {};
Object.keys(local.cliDict).sort().forEach(function (key, ii) {
if (key[0] === "_" && key !== "_default") {
return;
}
str = String(local.cliDict[key]);
if (key === "_default") {
key = "";
}
strDict[str] = strDict[str] || (ii + 2);
ii = strDict[str];
if (commandList[ii]) {
commandList[ii].command.push(key);
return;
}
try {
commandList[ii] = opt.rgxComment.exec(str);
commandList[ii] = {
argList: local.coalesce(commandList[ii][1], "").trim(),
command: [
key
],
description: commandList[ii][2]
};
} catch (ignore) {
local.assertOrThrow(undefined, new Error(
"cliRun - cannot parse comment in COMMAND "
+ key
+ ":\nnew RegExp("
+ JSON.stringify(opt.rgxComment.source)
+ ").exec(" + JSON.stringify(str).replace((
/\\\\/g
), "\u0000").replace((
/\\n/g
), "\\n\\\n").replace((
/\u0000/g
), "\\\\") + ");"
));
}
});
str = "";
str += packageJson.name + " (" + packageJson.version + ")\n\n";
str += commandList.filter(function (elem) {
return elem;
}).map(function (elem, ii) {
elem.command = elem.command.filter(function (elem) {
return elem;
});
switch (ii) {
case 0:
case 1:
elem.argList = [
elem.argList
];
break;
default:
elem.argList = elem.argList.split(" ");
elem.description = (
"# COMMAND "
+ (elem.command[0] || "<none>") + "\n# "
+ elem.description
);
}
return (
elem.description + "\n " + file
+ " &quo...n/a
coalesce = function (...argList) {
/*
* this function will coalesce null, undefined, or "" in <argList>
*/
let arg;
let ii;
ii = 0;
while (ii < argList.length) {
arg = argList[ii];
if (arg !== null && arg !== undefined && arg !== "") {
break;
}
ii += 1;
}
return arg;
}...
if (commandList[ii]) {
commandList[ii].command.push(key);
return;
}
try {
commandList[ii] = opt.rgxComment.exec(str);
commandList[ii] = {
argList: local.coalesce(commandList[ii][1], "").trim(),
command: [
key
],
description: commandList[ii][2]
};
} catch (ignore) {
local.assertOrThrow(undefined, new Error(
...coverageMerge = function (coverage1 = {}, coverage2 = {}) {
/*
* this function will inplace-merge <coverage2> into <coverage1>
*/
let dict1;
let dict2;
Object.keys(coverage2).forEach(function (file) {
// if coverage1[file] is undefined, then override it
if (!coverage1[file]) {
coverage1[file] = coverage2[file];
return;
}
// merge coverage2 into coverage1
[
"b", "f", "s"
].forEach(function (key) {
dict1 = coverage1[file][key];
dict2 = coverage2[file][key];
switch (key) {
// increment coverage for branch lines
case "b":
Object.keys(dict2).forEach(function (key) {
dict2[key].forEach(function (cnt, ii) {
dict1[key][ii] += cnt;
});
});
break;
// increment coverage for function and statement lines
case "f":
case "s":
Object.keys(dict2).forEach(function (key) {
dict1[key] += dict2[key];
});
break;
}
});
});
return coverage1;
}...
});
/* jslint ignore:start */
// validate opt.coverage1
local.assertJsonEqual(opt.coverage1,
{"/test":{"b":{"1":[0,1]},"branchMap":{"1":{"line":2,"locations
":[{"end":{"column":25,"line":2},"start":{"column":13,"line":2}},{&
quot;end":{"column":40,"line":2},"start":{"column":28,"line":2}}],"type
":"cond-expr"}},"code":["(function () {","return arg ? __coverage__ : __coverage__;"
;,"}());"],"f":{"1":1},"fnMap":{"1":{"line":1,"loc":{"
;end":{"column":13,"line":1},"start":{"column":1,"line":1}},"name"
;:"(anonymous_1)"}},"path":"/test","s":{"1":1,"2":1},"statementMap
":{"1":{"end":{"column":5,"line":3},"start":{"column":0,"line
":1}},"2":{"end":{"column":41,"line":2},"start":{"column":0,"
;line":2}}}}}
);
// test merge-create handling-behavior
opt.coverage1 = local.istanbul.coverageMerge({}, opt.coverage1);
// validate opt.coverage1
local.assertJsonEqual(opt.coverage1,
{"/test":{"b":{"1":[0,1]},"branchMap":{"1":{"line":2,"locations
":[{"end":{"column":25,"line":2},"start":{"column":13,"line":2}},{&
quot;end":{"column":40,"line":2},"start":{"column":28,"line":2}}],"type
":"cond-expr"}},"code":["(function () {","return arg ? __coverage__ : __coverage__;"
;,"}());"],"f":{"1":1},"fnMap":{"1":{"line":1,"loc":{"
;end":{"column":13,"line":1},"start":{"column":1,"line":1}},"name"
;:"(anonymous_1)"}},"path":"/test","s":{"1":1,"2":1},"statementMap
":{"1":{"end":{"column":5,"line":3},"start":{"column":0,"line
":1}},"2":{"end":{"column":41,"line":2},"start":{"column":0,"
;line":2}}}}}
);
// init opt.coverage2
opt.coverage2 = local.vm.runInNewContext(opt.data, { arg: 1 });
// validate opt.coverage2
...coverageReportCreate = function (opt) {
/*
* this function will
// 1. merge previous <dirCoverage>/coverage.json into <opt>.coverage
// 2. convert <opt>.coverage to <summaryDict>
// 3. convert <summaryDict> to <nodeRoot>
// 4. convert <nodeRoot> to text-report <dirCoverage>/coverage.txt
// 5. convert <nodeRoot> to html-report <dirCoverage>/\*
// 6. return coverage-report in html-format as single document
*/
let coverageInclude;
let dirCoverage;
let filePrefix;
let filesUnderRoot;
let htmlAll;
let nodeChildAdd;
let nodeCreate;
let nodeDict;
let nodeNormalize;
let nodeRoot;
let summaryDict;
let tmp;
let tmpChildren;
if (!(opt && opt.coverage)) {
return "";
}
// init function
nodeChildAdd = function (node, child) {
/*
* this function will add <child> to <node>
*/
node.children.push(child);
child.parent = node;
};
nodeCreate = function (pathname) {
/*
* this function will create a tree-node
*/
return {
children: [],
pathname,
metrics: {
branches: {
total: 0,
covered: 0,
skipped: 0,
pct: "Unknown"
},
functions: {
total: 0,
covered: 0,
skipped: 0,
pct: "Unknown"
},
lines: {
total: 0,
covered: 0,
skipped: 0,
pct: "Unknown"
},
statements: {
total: 0,
covered: 0,
skipped: 0,
pct: "Unknown"
}
},
name: pathname
};
};
nodeNormalize = function (node, level, filePrefix, parent) {
/*
* this function will recursively normalize <node> and its children
*/
let metric;
// init name
if (node.name.indexOf(filePrefix) === 0) {
node.name = node.name.slice(filePrefix.length);
}
if (node.name[0] === path.sep) {
node.name = node.name.slice(1);
}
// init relativeName
node.relativeName = (
parent
? (
parent.name !== "__root__/"
? node.name.slice(parent.name.length)
: node.name
)
: node.name.slice(filePrefix.length)
);
// init nameOrAllFiles
node.nameOrAllFiles = node.name || "All files";
// init relativeNameOrAllFiles
node.relativeNameOrAllFiles = node.relativeName || "All files";
// init href
node.href = node.relativeName.split(path.sep).join("/") + (
node.isFile
? ".html"
: "index.html"
);
// recurse
node.children.forEach(function (child) {
nodeNormalize(child, level + 1, filePrefix, node);
});
// sort children by name
node.children.sort(function (aa, bb) {
return (
aa.name > bb.name
? 1
: -1
);
});
// init metrics
if (!node.isFile) {
node.children.forEach(function (child) {
[
"lines", "statements", "branches", "functions"
].forEach(function (key) {
metric = node.metrics[key];
metric.total += child.metrics[key].total;
metric.covered += child.metrics[key].covered;
metric.skipped += child.metrics[key].skipped;......
"/inputTextarea1.js"\n\
);\n\
eval( // jslint ignore:line\n\
document.querySelector("#outputTextarea1").value\n\
);\n\
document.querySelector(\n\
"#htmlCoverageReport1"\n\
).innerHTML = local.istanbul.coverageReportCreate({\n\
coverage: globalThis.__coverage__\n\
});\n\
} catch (errCaught) {\n\
console.error(errCaught);\n\
}\n\
break;\n\
}\n\
...function Parser(options, input, startPos) {
this.options = options = getOptions(options);
this.sourceFile = options.sourceFile;
this.keywords = wordsRegexp(keywords[options.ecmaVersion >= 6 ? 6 : options.sourceType === "module" ? "5module" : 5]);
var reserved = "";
if (options.allowReserved !== true) {
for (var v = options.ecmaVersion;; v--)
{ if (reserved = reservedWords[v]) { break } }
if (options.sourceType === "module") { reserved += " await"; }
}
this.reservedWords = wordsRegexp(reserved);
var reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict;
this.reservedWordsStrict = wordsRegexp(reservedStrict);
this.reservedWordsStrictBind = wordsRegexp(reservedStrict + " " + reservedWords.strictBind);
this.input = String(input);
// Used to signal to callers of `readWord1` whether the word
// contained any escape sequences. This is needed because words with
// escape sequences must not be interpreted as keywords.
this.containsEsc = false;
// Set up token state
// The current position of the tokenizer in the input.
if (startPos) {
this.pos = startPos;
this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1;
this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length;
} else {
this.pos = this.lineStart = 0;
this.curLine = 1;
}
// Properties of the current token:
// Its type
this.type = types.eof;
// For tokens that include more information than their type, the value
this.value = null;
// Its start and end offset
this.start = this.end = this.pos;
// And, if locations are used, the {line, column} object
// corresponding to those offsets
this.startLoc = this.endLoc = this.curPosition();
// Position information for the previous token
this.lastTokEndLoc = this.lastTokStartLoc = null;
this.lastTokStart = this.lastTokEnd = this.pos;
// The context stack is used to superficially track syntactic
// context to predict whether a regular expression is allowed in a
// given position.
this.context = this.initialContext();
this.exprAllowed = true;
// Figure out if it's a module code.
this.inModule = options.sourceType === "module";
this.strict = this.inModule || this.strictDirective(this.pos);
// Used to signify the start of a potential arrow function
this.potentialArrowAt = -1;
// Positions to delayed-check that yield/await does not exist in default parameters.
this.yieldPos = this.awaitPos = this.awaitIdentPos = 0;
// Labels in scope.
this.labels = [];
// Thus-far undefined exports.
this.undefinedExports = {};
// If enabled, skip leading hashbang line.
if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!")
{ this.skipLineComment(2); }
// Scope tracking for duplicate variable names (see scope.js)
this.scopeStack = [];
this.enterScope(SCOPE_TOP);
// For RegExp validation
this.regexpState = null;
}n/a
function Position(line, col) {
this.line = line;
this.column = col;
}n/a
function Controller() { }n/a
fsReadFileOrDefaultSync = function (pathname, type, dflt) {
/*
* this function will sync-read <pathname> with given <type> and <dflt>
*/
let fs;
// do nothing if module does not exist
try {
fs = require("fs");
} catch (ignore) {
return dflt;
}
pathname = require("path").resolve(pathname);
// try to read pathname
try {
return (
type === "json"
? JSON.parse(fs.readFileSync(pathname, "utf8"))
: fs.readFileSync(pathname, type)
);
} catch (ignore) {
return dflt;
}
}n/a
fsRmrfSync = function (pathname) {
/*
* this function will sync "rm -rf" <pathname>
*/
let child_process;
// do nothing if module does not exist
try {
child_process = require("child_process");
} catch (ignore) {
return;
}
pathname = require("path").resolve(pathname);
if (process.platform !== "win32") {
child_process.spawnSync("rm", [
"-rf", pathname
], {
stdio: [
"ignore", 1, 2
]
});
return;
}
try {
child_process.spawnSync("rd", [
"/s", "/q", pathname
], {
stdio: [
"ignore", 1, "ignore"
]
});
} catch (ignore) {}
}...
local.env, {
npm_config_mode_coverage_merge: "1"
}
]
], function (onError) {
// cleanup old coverage
if (!local.isBrowser) {
local.fsRmrfSync("tmp/build/coverage.html/aa");
}
// test path handling-behavior
[
"/", local.__dirname
].forEach(function (dir) {
[
"zz.js",
...fsWriteFileWithMkdirpSync = function (pathname, data, msg) {
/*
* this function will sync write <data> to <pathname> with "mkdir -p"
*/
let fs;
let success;
// do nothing if module does not exist
try {
fs = require("fs");
} catch (ignore) {
return;
}
pathname = require("path").resolve(pathname);
// try to write pathname
try {
fs.writeFileSync(pathname, data);
success = true;
} catch (ignore) {
// mkdir -p
fs.mkdirSync(require("path").dirname(pathname), {
recursive: true
});
// re-write pathname
fs.writeFileSync(pathname, data);
success = true;
}
if (success && msg) {
console.error(msg.replace("{{pathname}}", pathname));
}
return success;
}n/a
identity = function (val) {
/*
* this function will return <val>
*/
return val;
}...
local.cliDict.help = local.cliDict.help || local.cliDict._help;
local.cliDict._interactive = local.cliDict._interactive || function () {
/*
*
* will start interactive-mode
*/
globalThis.local = local;
local.identity(local.replStart || require("repl").start)({
useGlobal: true
});
};
local.cliDict["--interactive"] = (
local.cliDict["--interactive"]
|| local.cliDict._interactive
);
...instrumentInPackage = function (code, file) {
/*
* this function will instrument <code>
* if macro /\* istanbul instrument in package $npm_package_nameLib *\/
* exists in <code>
*/
return (
(
process.env.npm_config_mode_coverage
&& code.indexOf("/* istanbul ignore all */\n") < 0 && (
process.env.npm_config_mode_coverage === "all"
|| process.env.npm_config_mode_coverage === "node_modules"
|| code.indexOf(
"/* istanbul instrument in package "
+ process.env.npm_package_nameLib + " */\n"
) >= 0
|| code.indexOf(
"/* istanbul instrument in package "
+ process.env.npm_config_mode_coverage + " */\n"
) >= 0
)
)
? local.instrumentSync(code, file)
: code
);
}n/a
instrumentSync = function (code, file) {
/*
* this function will
// 1. normalize <file>
// 2. save <code> to __coverageInclude__[<file>] for future html-report
// 3. return instrumented-code
*/
// 1. normalize <file>
file = path.resolve(file);
// 2. save <code> to __coverageInclude__[<file>] for future html-report
globalThis.__coverageInclude__[file] = 1;
// 3. return instrumented-code
return new local.Instrumenter({
embedSource: true,
esModules: true,
noAutoWrap: true
}).instrumentSync(code, file).trimStart();
}...
try {\n\
delete globalThis.__coverage__["/inputTextarea1.js"];\n\
} catch (ignore) {}\n\
// try to cover and eval #inputTextarea1\n\
try {\n\
document.querySelector(\n\
"#outputTextarea1"\n\
).textContent = local.istanbul.instrumentSync(\n\
document.querySelector("#inputTextarea1").value,\n\
"/inputTextarea1.js"\n\
);\n\
eval( // jslint ignore:line\n\
document.querySelector("#outputTextarea1").value\n\
);\n\
document.querySelector(\n\
...nop = function () {
/*
* this function will do nothing
*/
return;
}...
// run shared js-env code - function
(function () {
let process;
let require;
// hack-jslint
local.nop(require);
globalThis.__coverageInclude__ = local.coalesce(
globalThis.__coverageInclude__,
{}
);
// mock builtins
process = local.process || {
cwd: function () {
...objectAssignDefault = function (tgt = {}, src = {}, depth = 0) {
/*
* this function will if items from <tgt> are null, undefined, or "",
* then overwrite them with items from <src>
*/
let recurse;
recurse = function (tgt, src, depth) {
Object.entries(src).forEach(function ([
key, bb
]) {
let aa;
aa = tgt[key];
if (aa === undefined || aa === null || aa === "") {
tgt[key] = bb;
return;
}
if (
depth !== 0
&& typeof aa === "object" && aa && !Array.isArray(aa)
&& typeof bb === "object" && bb && !Array.isArray(bb)
) {
recurse(aa, bb, depth - 1);
}
});
};
recurse(tgt, src, depth | 0);
return tgt;
}...
}).join(" ").replace((
/\u001b\[\d*m/g
), "") + "\n";
// scroll textarea to bottom
elem.scrollTop = elem.scrollHeight;
};
});
local.objectAssignDefault(local, globalThis.domOnEventDelegateDict);
globalThis.domOnEventDelegateDict = local;
}());
// run node js-env code - init-test
/* istanbul ignore next */
...function hrtime(time) {
_hrtime(hrValues);
if (time !== undefined) {
if (!ArrayIsArray(time)) {
throw new ERR_INVALID_ARG_TYPE('time', 'Array', time);
}
if (time.length !== 2) {
throw new ERR_OUT_OF_RANGE('time', 2, time.length);
}
const sec = (hrValues[0] * 0x100000000 + hrValues[1]) - time[0];
const nsec = hrValues[2] - time[1];
const needsBorrow = nsec < 0;
return [needsBorrow ? sec - 1 : sec, needsBorrow ? nsec + 1e9 : nsec];
}
return [
hrValues[0] * 0x100000000 + hrValues[1],
hrValues[2]
];
}n/a
function require(path) {
return mod.require(path);
}...
cwd: function () {
return "";
},
env: {}
};
require = function (key) {
try {
return local["__istanbul_" + key] || local[key] || local.require(key);
} catch (ignore) {}
};
local["./package.json"] = {};
// mock module path
local.__istanbul_path = local.path || {
dirname: function (file) {
return file.replace((
...function resolve(request, options) {
validateString(request, 'request');
return Module._resolveFilename(request, mod, false, options);
}n/a
templateRender = function (template, dict, opt, ii) {
/*
* this function will render <template> with given <dict>
*/
let argList;
let getVal;
let match;
let renderPartial;
let rgx;
let skip;
let val;
if (dict === null || dict === undefined) {
dict = {};
}
opt = opt || {};
getVal = function (key) {
argList = key.split(" ");
val = dict;
if (argList[0] === "#this/") {
return val;
}
if (argList[0] === "#ii/") {
return ii;
}
// iteratively lookup nested val in dict
argList[0].split(".").forEach(function (key) {
val = val && val[key];
});
return val;
};
renderPartial = function (match0, helper, key, partial) {
switch (helper) {
case "each":
case "eachTrimEndComma":
val = getVal(key);
val = (
Array.isArray(val)
? val.map(function (dict, ii) {
// recurse with partial
return local.templateRender(partial, dict, opt, ii);
}).join("")
: ""
);
// remove trailing-comma from last elem
if (helper === "eachTrimEndComma") {
val = val.trimEnd().replace((
/,$/
), "");
}
return val;
case "if":
partial = partial.split("{{#unless " + key + "}}");
partial = (
getVal(key)
? partial[0]
// handle "unless" case
: partial.slice(1).join("{{#unless " + key + "}}")
);
// recurse with partial
return local.templateRender(partial, dict, opt);
case "unless":
return (
getVal(key)
? ""
// recurse with partial
: local.templateRender(partial, dict, opt)
);
default:
// recurse with partial
return match0[0] + local.templateRender(match0.slice(1), dict, opt);
}
};
// render partials
rgx = (
/\{\{#(\w+)\u0020([^}]+?)\}\}/g
);
template = template || "";
match = rgx.exec(template);
while (match) {
rgx.lastIndex += 1 - match[0].length;
template = template.replace(
new RegExp(
"\\{\\{#(" + match[1] + ") (" + match[2]
+ ")\\}\\}([\\S\\s]*?)\\{\\{/" + match[1] + " " + match[2]
+ "\\}\\}"
),
renderPartial
);
match = rgx.exec(template);
}
// search for keys in template
return template.replace((
/\{\{[^}]+?\}\}/g
), function (match0) {
let markdownToHtml;
let notHtmlSafe;
notHtmlSafe = opt.notHtmlSafe;
try {
val = getVal(match0.slice(2, -2));
if (val === undefined) {
return match0;
}
argList.slice(1).forEach(function (fmt, ii, list) {
switch (fmt) {
case "*":
case "+":
case "-":
case "/":
skip = ii + 1;
val = String(
fmt === "*"
? Number(val) * Number(list[skip])
: fmt === "+"
? Number(val) + Number(list[skip])
: fmt === "-"
? Number(val) - Number(list[skip])
: Number(val) / Number(list[skip])
);
break;......
case "each":
case "eachTrimEndComma":
val = getVal(key);
val = (
Array.isArray(val)
? val.map(function (dict, ii) {
// recurse with partial
return local.templateRender(partial, dict, opt, ii);
}).join("")
: ""
);
// remove trailing-comma from last elem
if (helper === "eachTrimEndComma") {
val = val.trimEnd().replace((
/,$/
...function Instrumenter(options) {
this.opts = options || {
debug: false,
walkDebug: false,
coverageVariable: '__coverage__',
codeGenerationOptions: undefined,
noAutoWrap: false,
noCompact: false,
embedSource: false,
preserveComments: false,
esModules: false
};
if (this.opts.esModules && !this.opts.noAutoWrap) {
this.opts.noAutoWrap = true;
if (this.opts.debug) {
console.log('Setting noAutoWrap to true as required by esModules');
}
}
this.walker = new Walker({
ArrowFunctionExpression: [ this.arrowBlockConverter ],
ExpressionStatement: this.coverStatement,
ExportNamedDeclaration: this.coverExport,
BreakStatement: this.coverStatement,
ContinueStatement: this.coverStatement,
DebuggerStatement: this.coverStatement,
ReturnStatement: this.coverStatement,
ThrowStatement: this.coverStatement,
TryStatement: [ this.paranoidHandlerCheck, this.coverStatement],
VariableDeclaration: this.coverStatement,
IfStatement: [ this.ifBlockConverter, this.coverStatement, this.ifBranchInjector ],
ForStatement: [ this.skipInit, this.loopBlockConverter, this.coverStatement ],
ForInStatement: [ this.skipLeft, this.loopBlockConverter, this.coverStatement ],
ForOfStatement: [ this.skipLeft, this.loopBlockConverter, this.coverStatement ],
WhileStatement: [ this.loopBlockConverter, this.coverStatement ],
DoWhileStatement: [ this.loopBlockConverter, this.coverStatement ],
SwitchStatement: [ this.coverStatement, this.switchBranchInjector ],
SwitchCase: [ this.switchCaseInjector ],
WithStatement: [ this.withBlockConverter, this.coverStatement ],
FunctionDeclaration: [ this.coverFunction, this.coverStatement ],
FunctionExpression: this.coverFunction,
LabeledStatement: this.coverStatement,
ConditionalExpression: this.conditionalBranchInjector,
LogicalExpression: this.logicalExpressionBranchInjector,
ObjectExpression: this.maybeAddType,
MetaProperty: this.coverMetaProperty,
}, this.extractCurrentHint, this, this.opts.walkDebug);
//unit testing purposes only
if (this.opts.backdoor && this.opts.backdoor.omitTrackerSuffix) {
this.omitTrackerSuffix = true;
}
}n/a
arrowBlockConverter = function (node) {
var retStatement;
if (node.expression) { // turn expression nodes into a block with a return statement
retStatement = astgen.returnStatement(node.body);
// ensure the generated return statement is covered
retStatement.loc = node.body.loc;
node.body = this.convertToBlock(retStatement);
node.expression = false;
}
}n/a
branchIncrementExprAst = function (varName, branchIndex, down) {
var ret = astgen.postIncrement(
astgen.subscript(
astgen.subscript(
astgen.dot(astgen.variable(this.currentState.trackerVar), astgen.variable('b')),
astgen.stringLiteral(varName)
),
astgen.numericLiteral(branchIndex)
),
down
);
return ret;
}n/a
branchLocationFor = function (name, index) {
return this.coverState.branchMap[name].locations[index];
}n/a
branchName = function (type, startLine, pathLocations) {
var bName,
paths = [],
locations = [],
i,
ignoring = !!this.currentState.ignoring;
this.currentState.branch += 1;
bName = this.currentState.branch;
for (i = 0; i < pathLocations.length; i += 1) {
pathLocations[i].skip = pathLocations[i].skip || ignoring || undefined;
locations.push(pathLocations[i]);
paths.push(0);
}
this.coverState.b[bName] = paths;
this.coverState.branchMap[bName] = { line: startLine, type: type, locations: locations };
return bName;
}n/a
conditionalBranchInjector = function (node, walker) {
var bName = this.branchName('cond-expr', walker.startLineForNode(node), this.locationsForNodes([ node.consequent, node.alternate
])),
ast1 = this.branchIncrementExprAst(bName, 0),
ast2 = this.branchIncrementExprAst(bName, 1);
node.consequent.preprocessor = this.maybeAddSkip(this.branchLocationFor(bName, 0));
node.alternate.preprocessor = this.maybeAddSkip(this.branchLocationFor(bName, 1));
node.consequent = astgen.sequence(ast1, node.consequent);
node.alternate = astgen.sequence(ast2, node.alternate);
}n/a
convertToBlock = function (node) {
if (!node) {
return { type: 'BlockStatement', body: [] };
} else if (node.type === 'BlockStatement') {
return node;
} else {
return { type: 'BlockStatement', body: [ node ] };
}
}n/a
coverExport = function (node, walker) {
var sName, incrStatementCount;
if ( !node.declaration || !node.declaration.declarations ) { return; }
this.maybeSkipNode(node, 'next');
sName = this.statementName(node.declaration.loc);
incrStatementCount = astgen.statement(
astgen.postIncrement(
astgen.subscript(
astgen.dot(astgen.variable(this.currentState.trackerVar), astgen.variable('s')),
astgen.stringLiteral(sName)
)
)
);
this.splice(incrStatementCount, node, walker);
}n/a
coverFunction = function (node, walker) {
var id,
body = node.body,
blockBody = body.body,
popped;
this.maybeSkipNode(node, 'next');
id = this.functionName(node, walker.startLineForNode(node), {
start: node.loc.start,
end: { line: node.body.loc.start.line, column: node.body.loc.start.column }
});
if (blockBody.length > 0 && this.isUseStrictExpression(blockBody[0])) {
popped = blockBody.shift();
}
blockBody.unshift(
astgen.statement(
astgen.postIncrement(
astgen.subscript(
astgen.dot(astgen.variable(this.currentState.trackerVar), astgen.variable('f')),
astgen.stringLiteral(id)
)
)
)
);
if (popped) {
blockBody.unshift(popped);
}
}n/a
function(node) {
node.skipSelf = true;
}n/a
coverStatement = function (node, walker) {
var sName,
incrStatementCount,
parent,
grandParent;
this.maybeSkipNode(node, 'next');
if (this.isUseStrictExpression(node)) {
grandParent = walker.ancestor(2);
/* istanbul ignore else: difficult to test */
if (grandParent) {
if ((grandParent.node.type === SYNTAX.FunctionExpression.name ||
grandParent.node.type === SYNTAX.FunctionDeclaration.name) &&
walker.parent().node.body[0] === node) {
return;
}
}
}
if (node.type === SYNTAX.FunctionDeclaration.name) {
// Called for the side-effect of setting the function's statement count to 1.
this.statementName(node.loc, 1);
} else {
// We let `coverExport` handle ExportNamedDeclarations.
parent = walker.parent();
if (parent && parent.node.type === SYNTAX.ExportNamedDeclaration.name) {
return;
}
sName = this.statementName(node.loc);
incrStatementCount = astgen.statement(
astgen.postIncrement(
astgen.subscript(
astgen.dot(astgen.variable(this.currentState.trackerVar), astgen.variable('s')),
astgen.stringLiteral(sName)
)
)
);
this.splice(incrStatementCount, node, walker);
}
}n/a
endIgnore = function () {
this.currentState.ignoring -= 1;
}n/a
extractCurrentHint = function (node) {
if (!node.range) { return; }
var i = this.currentState.lastHintPosition + 1,
hints = this.currentState.hints,
nodeStart = node.range[0],
hint;
this.currentState.currentHint = null;
// hack-coverage - allow top-level istanbul-ignore-next
if (node.type === "Program") { return; }
while (i < hints.length) {
hint = hints[i];
if (hint.end < nodeStart) {
this.currentState.currentHint = hint;
this.currentState.lastHintPosition = i;
i += 1;
} else {
break;
}
}
}n/a
filterHints = function (comments) {
var ret = [],
i,
comment,
groups;
if (!(comments && isArray(comments))) {
return ret;
}
for (i = 0; i < comments.length; i += 1) {
comment = comments[i];
/* istanbul ignore else: paranoid check */
if (comment && comment.value && comment.range && isArray(comment.range)) {
groups = String(comment.value).match(COMMENT_RE);
if (groups) {
ret.push({ type: groups[1], start: comment.range[0], end: comment.range[1] });
}
}
}
return ret;
}n/a
findLeaves = function (node, accumulator, parent, property) {
if (node.type === SYNTAX.LogicalExpression.name) {
this.findLeaves(node.left, accumulator, node, 'left');
this.findLeaves(node.right, accumulator, node, 'right');
} else {
accumulator.push({ node: node, parent: parent, property: property });
}
}n/a
fixColumnPositions = function (coverState) {
var offset = LEADER_WRAP.length,
fixer = function (loc) {
if (loc.start.line === 1) {
loc.start.column -= offset;
}
if (loc.end.line === 1) {
loc.end.column -= offset;
}
},
k,
obj,
i,
locations;
obj = coverState.statementMap;
for (k in obj) {
/* istanbul ignore else: has own property */
if (obj.hasOwnProperty(k)) { fixer(obj[k]); }
}
obj = coverState.fnMap;
for (k in obj) {
/* istanbul ignore else: has own property */
if (obj.hasOwnProperty(k)) { fixer(obj[k].loc); }
}
obj = coverState.branchMap;
for (k in obj) {
/* istanbul ignore else: has own property */
if (obj.hasOwnProperty(k)) {
locations = obj[k].locations;
for (i = 0; i < locations.length; i += 1) {
fixer(locations[i]);
}
}
}
}n/a
functionName = function (node, line, location) {
this.currentState.func += 1;
var id = this.currentState.func,
ignoring = !!this.currentState.ignoring,
name = node.id ? node.id.name : '(anonymous_' + id + ')',
clone = function (attr) {
var obj = location[attr] || /* istanbul ignore next */ {};
return { line: obj.line, column: obj.column };
};
this.coverState.fnMap[id] = {
name: name, line: line,
loc: {
start: clone('start'),
end: clone('end')
},
skip: ignoring || undefined
};
this.coverState.f[id] = 0;
return id;
}n/a
getPreamble = function (sourceCode, emitUseStrict) {
var varName = this.opts.coverageVariable || '__coverage__',
file = this.coverState.path.replace(/\\/g, '\\\\'),
tracker = this.currentState.trackerVar,
coverState,
strictLine = emitUseStrict ? '"use strict";' : '',
// return replacements using the function to ensure that the replacement is
// treated like a dumb string and not as a string with RE replacement patterns
replacer = function (s) {
return function () { return s; };
},
code;
if (!this.opts.noAutoWrap) {
this.fixColumnPositions(this.coverState);
}
if (this.opts.embedSource) {
this.coverState.code = sourceCode.split(/(?:\r?\n)|\r/);
}
coverState = this.opts.debug ? JSON.stringify(this.coverState, undefined, 4) : JSON.stringify(this.coverState);
code = [
"%STRICT%",
"var %VAR% = (Function('return this'))();",
"if (!%VAR%.%GLOBAL%) { %VAR%.%GLOBAL% = {}; }",
"%VAR% = %VAR%.%GLOBAL%;",
"if (!(%VAR%['%FILE%'])) {",
" %VAR%['%FILE%'] = %OBJECT%;",
"}",
"%VAR% = %VAR%['%FILE%'];"
].join("\n")
.replace(/%STRICT%/g, replacer(strictLine))
.replace(/%VAR%/g, replacer(tracker))
.replace(/%GLOBAL%/g, replacer(varName))
.replace(/%FILE%/g, replacer(file))
.replace(/%OBJECT%/g, replacer(coverState));
return code;
}n/a
ifBlockConverter = function (node) {
node.consequent = this.convertToBlock(node.consequent);
node.alternate = this.convertToBlock(node.alternate);
}n/a
ifBranchInjector = function (node, walker) {
var alreadyIgnoring = !!this.currentState.ignoring,
hint = this.currentState.currentHint,
ignoreThen = !alreadyIgnoring && hint && hint.type === 'if',
ignoreElse = !alreadyIgnoring && hint && hint.type === 'else',
line = node.loc.start.line,
col = node.loc.start.column,
makeLoc = function () { return { line: line, column: col }; },
bName = this.branchName('if', walker.startLineForNode(node), [
{ start: makeLoc(), end: makeLoc(), skip: ignoreThen || undefined },
{ start: makeLoc(), end: makeLoc(), skip: ignoreElse || undefined }
]),
thenBody = node.consequent.body,
elseBody = node.alternate.body,
child;
thenBody.unshift(astgen.statement(this.branchIncrementExprAst(bName, 0)));
elseBody.unshift(astgen.statement(this.branchIncrementExprAst(bName, 1)));
if (ignoreThen) { child = node.consequent; child.preprocessor = this.startIgnore; child.postprocessor = this.endIgnore; }
if (ignoreElse) { child = node.alternate; child.preprocessor = this.startIgnore; child.postprocessor = this.endIgnore; }
}n/a
instrument = function (code, filename, callback) {
if (!callback && typeof filename === 'function') {
callback = filename;
filename = null;
}
try {
callback(null, this.instrumentSync(code, filename));
} catch (ex) {
callback(ex);
}
}n/a
instrumentASTSync = function (program, filename, originalCode) {
var usingStrict = false,
codegenOptions,
generated,
preamble,
lineCount,
i;
filename = filename || String(new Date().getTime()) + '.js';
this.sourceMap = null;
this.coverState = {
path: filename,
s: {},
b: {},
f: {},
fnMap: {},
statementMap: {},
branchMap: {}
};
this.currentState = {
trackerVar: generateTrackerVar(filename, this.omitTrackerSuffix),
func: 0,
branch: 0,
variable: 0,
statement: 0,
hints: this.filterHints(program.comments),
currentHint: null,
lastHintPosition: -1,
ignoring: 0
};
if (program.body && program.body.length > 0 && this.isUseStrictExpression(program.body[0])) {
//nuke it
program.body.shift();
//and add it back at code generation time
usingStrict = true;
}
this.walker.startWalk(program);
codegenOptions = this.opts.codeGenerationOptions || { format: { compact: !this.opts.noCompact }};
codegenOptions.comment = this.opts.preserveComments;
//console.log(JSON.stringify(program, undefined, 2));
generated = ESPGEN.generate(program, codegenOptions);
preamble = this.getPreamble(originalCode || '', usingStrict);
if (generated.map && generated.code) {
lineCount = preamble.split(/\r\n|\r|\n/).length;
// offset all the generated line numbers by the number of lines in the preamble
for (i = 0; i < generated.map._mappings._array.length; i += 1) {
generated.map._mappings._array[i].generatedLine += lineCount;
}
this.sourceMap = generated.map;
generated = generated.code;
}
return preamble + '\n' + generated + '\n';
}n/a
instrumentSync = function (code, filename) {
var program;
//protect from users accidentally passing in a Buffer object instead
if (typeof code !== 'string') { throw new Error('Code must be string'); }
if (code.charAt(0) === '#') { //shebang, 'comment' it out, won't affect syntax tree locations for things we care about
code = '//' + code;
}
if (!this.opts.noAutoWrap) {
code = LEADER_WRAP + code + TRAILER_WRAP;
}
try {
// hack-coverage - acorn opt
let opt = {
locations: true,
onComment: [],
onToken: this.opts.preserveComments,
ranges: true,
sourceType: this.opts.esModules ? 'module' : 'script'
};
program = ESP.parse(code, opt);
program.comments = opt.onComment
} catch (e) {
console.log('Failed to parse file: ' + filename);
throw e;
}
if (this.opts.preserveComments) {
program = ESPGEN.attachComments(program, program.comments, program.tokens);
}
if (!this.opts.noAutoWrap) {
program = {
type: SYNTAX.Program.name,
body: program.body[0].expression.callee.body.body,
comments: program.comments
};
}
return this.instrumentASTSync(program, filename, code);
}...
try {\n\
delete globalThis.__coverage__["/inputTextarea1.js"];\n\
} catch (ignore) {}\n\
// try to cover and eval #inputTextarea1\n\
try {\n\
document.querySelector(\n\
"#outputTextarea1"\n\
).textContent = local.istanbul.instrumentSync(\n\
document.querySelector("#inputTextarea1").value,\n\
"/inputTextarea1.js"\n\
);\n\
eval( // jslint ignore:line\n\
document.querySelector("#outputTextarea1").value\n\
);\n\
document.querySelector(\n\
...isUseStrictExpression = function (node) {
return node && node.type === SYNTAX.ExpressionStatement.name &&
node.expression && node.expression.type === SYNTAX.Literal.name &&
node.expression.value === 'use strict';
}n/a
lastFileCoverage = function () {
return this.coverState;
}n/a
lastSourceMap = function () {
return this.sourceMap;
}n/a
locationsForNodes = function (nodes) {
var ret = [],
i;
for (i = 0; i < nodes.length; i += 1) {
ret.push(nodes[i].loc);
}
return ret;
}n/a
logicalExpressionBranchInjector = function (node, walker) {
var parent = walker.parent(),
leaves = [],
bName,
tuple,
i;
this.maybeSkipNode(node, 'next');
if (parent && parent.node.type === SYNTAX.LogicalExpression.name) {
//already covered
return;
}
this.findLeaves(node, leaves);
bName = this.branchName('binary-expr',
walker.startLineForNode(node),
this.locationsForNodes(leaves.map(function (item) { return item.node; }))
);
for (i = 0; i < leaves.length; i += 1) {
tuple = leaves[i];
tuple.parent[tuple.property] = astgen.sequence(this.branchIncrementExprAst(bName, i), tuple.node);
tuple.node.preprocessor = this.maybeAddSkip(this.branchLocationFor(bName, i));
}
}n/a
loopBlockConverter = function (node) {
node.body = this.convertToBlock(node.body);
}n/a
maybeAddSkip = function (branchLocation) {
return function (node) {
var alreadyIgnoring = !!this.currentState.ignoring,
hint = this.currentState.currentHint,
ignoreThis = !alreadyIgnoring && hint && hint.type === 'next';
if (ignoreThis) {
this.startIgnore();
node.postprocessor = this.endIgnore;
}
if (ignoreThis || alreadyIgnoring) {
branchLocation.skip = true;
}
};
}n/a
maybeAddType = function (node) {
var props = node.properties,
i,
child;
for (i = 0; i < props.length; i += 1) {
child = props[i];
if (!child.type) {
child.type = SYNTAX.Property.name;
}
}
}n/a
maybeSkipNode = function (node, type) {
var alreadyIgnoring = !!this.currentState.ignoring,
hint = this.currentState.currentHint,
ignoreThis = !alreadyIgnoring && hint && hint.type === type;
if (ignoreThis) {
this.startIgnore();
node.postprocessor = this.endIgnore;
return true;
}
return false;
}n/a
paranoidHandlerCheck = function (node) {
// if someone is using an older esprima on the browser
// convert handlers array to single handler attribute
// containing its first element
/* istanbul ignore next */
if (!node.handler && node.handlers) {
node.handler = node.handlers[0];
}
}n/a
skipInit = function (node) {
if (node.init) {
node.init.skipWalk = true;
}
}n/a
skipLeft = function (node) {
node.left.skipWalk = true;
}n/a
splice = function (statements, node, walker) {
var targetNode = walker.isLabeled() ? walker.parent().node : node;
targetNode.prepend = targetNode.prepend || [];
pushAll(targetNode.prepend, statements);
}...
Reference.prototype.replace = function replace(node) {
this.parent[this.key] = node;
};
Reference.prototype.remove = function remove() {
if (isArray(this.parent)) {
this.parent.splice(this.key, 1);
return true;
} else {
this.replace(null);
return false;
}
};
...startIgnore = function () {
this.currentState.ignoring += 1;
}n/a
statementName = function (location, initValue) {
var sName,
ignoring = !!this.currentState.ignoring;
location.skip = ignoring || undefined;
initValue = initValue || 0;
this.currentState.statement += 1;
sName = this.currentState.statement;
this.coverState.statementMap[sName] = location;
this.coverState.s[sName] = initValue;
return sName;
}n/a
switchBranchInjector = function (node, walker) {
var cases = node.cases,
bName,
i;
if (!(cases && cases.length > 0)) {
return;
}
bName = this.branchName('switch', walker.startLineForNode(node), this.locationsForNodes(cases));
for (i = 0; i < cases.length; i += 1) {
cases[i].branchLocation = this.branchLocationFor(bName, i);
cases[i].consequent.unshift(astgen.statement(this.branchIncrementExprAst(bName, i)));
}
}n/a
switchCaseInjector = function (node) {
var location = node.branchLocation;
delete node.branchLocation;
if (this.maybeSkipNode(node, 'next')) {
location.skip = true;
}
}n/a
withBlockConverter = function (node) {
node.body = this.convertToBlock(node.body);
}n/a
cover = function () {
/*
* <script>
* will run and cover <script>
*/
let tmp;
try {
tmp = JSON.parse(local.fs.readFileSync("package.json", "utf8"));
process.env.npm_package_nameLib = (
process.env.npm_package_nameLib
|| tmp.nameLib
|| tmp.name.replace((
/-/g
), "_")
);
} catch (ignore) {}
process.env.npm_config_mode_coverage = (
process.env.npm_config_mode_coverage
|| process.env.npm_package_nameLib
|| "all"
);
// add coverage hook to require
local.__istanbul_moduleExtensionsJs = (
local.__istanbul_module._extensions[".js"]
);
local.__istanbul_module._extensions[".js"] = function (module, file) {
if (typeof file === "string" && (
file.indexOf(process.env.npm_config_mode_coverage_dir) === 0 || (
file.indexOf(process.cwd() + local.path.sep) === 0
&& (
process.env.npm_config_mode_coverage === "node_modules"
|| file.indexOf(
local.path.resolve("node_modules") + local.path.sep
) !== 0
)
)
)) {
module._compile(local.instrumentInPackage(
local.fs.readFileSync(file, "utf8"),
file
), file);
return;
}
local.__istanbul_moduleExtensionsJs(module, file);
};
// init process.argv
process.argv.splice(1, 2);
process.argv[1] = local.path.resolve(process.argv[1]);
console.error("\nistanbul - covering $ " + process.argv.join(" "));
// create coverage on exit
process.on("exit", function () {
local.coverageReportCreate({
coverage: globalThis.__coverage__
});
});
// re-init cli
local.__istanbul_module.runMain();
}n/a
instrument = function () {
/*
* <script>
* will instrument <script> and print result to stdout
*/
process.argv[3] = local.path.resolve(process.argv[3]);
process.stdout.write(local.instrumentSync(
local.fs.readFileSync(process.argv[3], "utf8"),
process.argv[3]
));
}n/a
report = function () {
/*
* <coverageJson>
* will create coverage-report from file <coverageJson>
*/
process.argv[3] = local.path.resolve(process.argv[3]);
globalThis.__coverage__ = JSON.parse(
local.fs.readFileSync(process.argv[3])
);
globalThis.__coverageInclude__ = {};
Object.keys(globalThis.__coverage__).forEach(function (file) {
globalThis.__coverageInclude__[file] = 1;
});
local.coverageReportCreate({
coverage: globalThis.__coverage__
});
}n/a
test = function () {
/*
* <script>
* will run and cover <script> if env-var $npm_config_mode_coverage is set
*/
if (process.env.npm_config_mode_coverage) {
process.argv[2] = "cover";
// re-init cli
local.cliDict[process.argv[2]]();
return;
}
// restart node with __filename removed from process.argv
process.argv.splice(1, 2);
process.argv[1] = local.path.resolve(process.argv[1]);
// re-init cli
local.__istanbul_module.runMain();
}...
// Test whether a given character code starts an identifier.
function isIdentifierStart(code, astral) {
if (code < 65) { return code === 36 }
if (code < 91) { return true }
if (code < 97) { return code === 95 }
if (code < 123) { return true }
if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code)) }
if (astral === false) { return false }
return isInAstralSet(code, astralIdentifierStartCodes)
}
// Test whether a given character is part of an identifier.
function isIdentifierChar(code, astral) {
...function attachComments(tree, providedComments, tokens) {
// At first, we should calculate extended comment ranges.
var comments = [], comment, len, i, cursor;
if (!tree.range) {
throw new Error('attachComments needs range information');
}
// tokens array is empty, we attach comments to tree as 'leadingComments'
if (!tokens.length) {
if (providedComments.length) {
for (i = 0, len = providedComments.length; i < len; i += 1) {
comment = deepCopy(providedComments[i]);
comment.extendedRange = [0, tree.range[0]];
comments.push(comment);
}
tree.leadingComments = comments;
}
return tree;
}
for (i = 0, len = providedComments.length; i < len; i += 1) {
comments.push(extendCommentRange(deepCopy(providedComments[i]), tokens));
}
// This is based on John Freeman's implementation.
cursor = 0;
traverse(tree, {
enter: function (node) {
var comment;
while (cursor < comments.length) {
comment = comments[cursor];
if (comment.extendedRange[1] > node.range[0]) {
break;
}
if (comment.extendedRange[1] === node.range[0]) {
if (!node.leadingComments) {
node.leadingComments = [];
}
node.leadingComments.push(comment);
comments.splice(cursor, 1);
} else {
cursor += 1;
}
}
// already out of owned node
if (cursor === comments.length) {
return VisitorOption.Break;
}
if (comments[cursor].extendedRange[0] > node.range[1]) {
return VisitorOption.Skip;
}
}
});
cursor = 0;
traverse(tree, {
leave: function (node) {
var comment;
while (cursor < comments.length) {
comment = comments[cursor];
if (node.range[1] < comment.extendedRange[0]) {
break;
}
if (node.range[1] === comment.extendedRange[0]) {
if (!node.trailingComments) {
node.trailingComments = [];
}
node.trailingComments.push(comment);
comments.splice(cursor, 1);
} else {
cursor += 1;
}
}
// already out of owned node
if (cursor === comments.length) {
return VisitorOption.Break;
}
if (comments[cursor].extendedRange[0] > node.range[1]) {
return VisitorOption.Skip;
}
}
});
return tree;
}n/a
function generate(node, options) {
var defaultOptions = getDefaultOptions(), result, pair;
if (options != null) {
// Obsolete options
//
// `options.indent`
// `options.base`
//
// Instead of them, we can use `option.format.indent`.
if (typeof options.indent === 'string') {
defaultOptions.format.indent.style = options.indent;
}
if (typeof options.base === 'number') {
defaultOptions.format.indent.base = options.base;
}
options = updateDeeply(defaultOptions, options);
indent = options.format.indent.style;
if (typeof options.base === 'string') {
base = options.base;
} else {
base = stringRepeat(indent, options.format.indent.base);
}
} else {
options = defaultOptions;
indent = options.format.indent.style;
base = stringRepeat(indent, options.format.indent.base);
}
json = options.format.json;
renumber = options.format.renumber;
hexadecimal = json ? false : options.format.hexadecimal;
quotes = json ? 'double' : options.format.quotes;
escapeless = options.format.escapeless;
newline = options.format.newline;
space = options.format.space;
if (options.format.compact) {
newline = space = indent = base = '';
}
parentheses = options.format.parentheses;
semicolons = options.format.semicolons;
safeConcatenation = options.format.safeConcatenation;
directive = options.directive;
parse = json ? null : options.parse;
sourceMap = options.sourceMap;
sourceCode = options.sourceCode;
preserveBlankLines = options.format.preserveBlankLines && sourceCode !== null;
extra = options;
if (sourceMap) {
if (!exports.browser) {
// We assume environment is node.js
// And prevent from including source-map by browserify
SourceNode = require('source-map').SourceNode;
} else {
SourceNode = global.sourceMap.SourceNode;
}
}
result = generateInternal(node);
if (!sourceMap) {
pair = {code: result.toString(), map: null};
return options.sourceMapWithCode ? pair : pair.code;
}
pair = result.toStringWithSourceMap({
file: options.file,
sourceRoot: options.sourceMapRoot
});
if (options.sourceContent) {
pair.map.setSourceContent(options.sourceMap,
options.sourceContent);
}
if (options.sourceMapWithCode) {
return pair;
}
return pair.map.toString();
}n/a
function Node(parser, pos, loc) {
this.type = "";
this.start = pos;
this.end = 0;
if (parser.options.locations)
{ this.loc = new SourceLocation(parser, loc); }
if (parser.options.directSourceFile)
{ this.sourceFile = parser.options.directSourceFile; }
if (parser.options.ranges)
{ this.range = [pos, 0]; }
}n/a
function Parser(options, input, startPos) {
this.options = options = getOptions(options);
this.sourceFile = options.sourceFile;
this.keywords = wordsRegexp(keywords[options.ecmaVersion >= 6 ? 6 : options.sourceType === "module" ? "5module" : 5]);
var reserved = "";
if (options.allowReserved !== true) {
for (var v = options.ecmaVersion;; v--)
{ if (reserved = reservedWords[v]) { break } }
if (options.sourceType === "module") { reserved += " await"; }
}
this.reservedWords = wordsRegexp(reserved);
var reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict;
this.reservedWordsStrict = wordsRegexp(reservedStrict);
this.reservedWordsStrictBind = wordsRegexp(reservedStrict + " " + reservedWords.strictBind);
this.input = String(input);
// Used to signal to callers of `readWord1` whether the word
// contained any escape sequences. This is needed because words with
// escape sequences must not be interpreted as keywords.
this.containsEsc = false;
// Set up token state
// The current position of the tokenizer in the input.
if (startPos) {
this.pos = startPos;
this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1;
this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length;
} else {
this.pos = this.lineStart = 0;
this.curLine = 1;
}
// Properties of the current token:
// Its type
this.type = types.eof;
// For tokens that include more information than their type, the value
this.value = null;
// Its start and end offset
this.start = this.end = this.pos;
// And, if locations are used, the {line, column} object
// corresponding to those offsets
this.startLoc = this.endLoc = this.curPosition();
// Position information for the previous token
this.lastTokEndLoc = this.lastTokStartLoc = null;
this.lastTokStart = this.lastTokEnd = this.pos;
// The context stack is used to superficially track syntactic
// context to predict whether a regular expression is allowed in a
// given position.
this.context = this.initialContext();
this.exprAllowed = true;
// Figure out if it's a module code.
this.inModule = options.sourceType === "module";
this.strict = this.inModule || this.strictDirective(this.pos);
// Used to signify the start of a potential arrow function
this.potentialArrowAt = -1;
// Positions to delayed-check that yield/await does not exist in default parameters.
this.yieldPos = this.awaitPos = this.awaitIdentPos = 0;
// Labels in scope.
this.labels = [];
// Thus-far undefined exports.
this.undefinedExports = {};
// If enabled, skip leading hashbang line.
if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!")
{ this.skipLineComment(2); }
// Scope tracking for duplicate variable names (see scope.js)
this.scopeStack = [];
this.enterScope(SCOPE_TOP);
// For RegExp validation
this.regexpState = null;
}n/a
function Position(line, col) {
this.line = line;
this.column = col;
}n/a
function SourceLocation(p, start, end) {
this.start = start;
this.end = end;
if (p.sourceFile !== null) { this.source = p.sourceFile; }
}n/a
function TokContext(token, isExpr, preserveSpace, override, generator) {
this.token = token;
this.isExpr = !!isExpr;
this.preserveSpace = !!preserveSpace;
this.override = override;
this.generator = !!generator;
}n/a
function Token(p) {
this.type = p.type;
this.value = p.value;
this.start = p.start;
this.end = p.end;
if (p.options.locations)
{ this.loc = new SourceLocation(p, p.startLoc, p.endLoc); }
if (p.options.ranges)
{ this.range = [p.start, p.end]; }
}n/a
function TokenType(label, conf) {
if ( conf === void 0 ) conf = {};
this.label = label;
this.keyword = conf.keyword;
this.beforeExpr = !!conf.beforeExpr;
this.startsExpr = !!conf.startsExpr;
this.isLoop = !!conf.isLoop;
this.isAssign = !!conf.isAssign;
this.prefix = !!conf.prefix;
this.postfix = !!conf.postfix;
this.binop = conf.binop || null;
this.updateContext = null;
}n/a
function getLineInfo(input, offset) {
for (var line = 1, cur = 0;;) {
lineBreakG.lastIndex = cur;
var match = lineBreakG.exec(input);
if (match && match.index < offset) {
++line;
cur = match.index + match[0].length;
} else {
return new Position(line, offset - cur)
}
}
}n/a
function isIdentifierChar(code, astral) {
if (code < 48) { return code === 36 }
if (code < 58) { return true }
if (code < 65) { return false }
if (code < 91) { return true }
if (code < 97) { return code === 95 }
if (code < 123) { return true }
if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code)) }
if (astral === false) { return false }
return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes)
}n/a
function isIdentifierStart(code, astral) {
if (code < 65) { return code === 36 }
if (code < 91) { return true }
if (code < 97) { return code === 95 }
if (code < 123) { return true }
if (code <= 0xffff) { return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code)) }
if (astral === false) { return false }
return isInAstralSet(code, astralIdentifierStartCodes)
}n/a
function isNewLine(code, ecma2019String) {
return code === 10 || code === 13 || (!ecma2019String && (code === 0x2028 || code === 0x2029))
}n/a
function parse(input, options) {
return Parser.parse(input, options)
}...
return dflt;
}
pathname = require("path").resolve(pathname);
// try to read pathname
try {
return (
type === "json"
? JSON.parse(fs.readFileSync(pathname, "utf8"))
: fs.readFileSync(pathname, type)
);
} catch (ignore) {
return dflt;
}
};
local.fsRmrfSync = function (pathname) {
...function parseExpressionAt(input, pos, options) {
return Parser.parseExpressionAt(input, pos, options)
}...
}
// This function tries to parse a single expression at a given
// offset in a string. Useful for parsing mixed-language formats
// that embed JavaScript expressions.
function parseExpressionAt(input, pos, options) {
return Parser.parseExpressionAt(input, pos, options)
}
// Acorn is organized as a tokenizer and a recursive-descent parser.
// The `tokenizer` export provides an interface to the tokenizer.
function tokenizer(input, options) {
return Parser.tokenizer(input, options)
...function tokenizer(input, options) {
return Parser.tokenizer(input, options)
}...
return Parser.parseExpressionAt(input, pos, options)
}
// Acorn is organized as a tokenizer and a recursive-descent parser.
// The `tokenizer` export provides an interface to the tokenizer.
function tokenizer(input, options) {
return Parser.tokenizer(input, options)
}
exports.Node = Node;
exports.Parser = Parser;
exports.Position = Position;
exports.SourceLocation = SourceLocation;
exports.TokContext = TokContext;
...function Parser(options, input, startPos) {
this.options = options = getOptions(options);
this.sourceFile = options.sourceFile;
this.keywords = wordsRegexp(keywords[options.ecmaVersion >= 6 ? 6 : options.sourceType === "module" ? "5module" : 5]);
var reserved = "";
if (options.allowReserved !== true) {
for (var v = options.ecmaVersion;; v--)
{ if (reserved = reservedWords[v]) { break } }
if (options.sourceType === "module") { reserved += " await"; }
}
this.reservedWords = wordsRegexp(reserved);
var reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict;
this.reservedWordsStrict = wordsRegexp(reservedStrict);
this.reservedWordsStrictBind = wordsRegexp(reservedStrict + " " + reservedWords.strictBind);
this.input = String(input);
// Used to signal to callers of `readWord1` whether the word
// contained any escape sequences. This is needed because words with
// escape sequences must not be interpreted as keywords.
this.containsEsc = false;
// Set up token state
// The current position of the tokenizer in the input.
if (startPos) {
this.pos = startPos;
this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1;
this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length;
} else {
this.pos = this.lineStart = 0;
this.curLine = 1;
}
// Properties of the current token:
// Its type
this.type = types.eof;
// For tokens that include more information than their type, the value
this.value = null;
// Its start and end offset
this.start = this.end = this.pos;
// And, if locations are used, the {line, column} object
// corresponding to those offsets
this.startLoc = this.endLoc = this.curPosition();
// Position information for the previous token
this.lastTokEndLoc = this.lastTokStartLoc = null;
this.lastTokStart = this.lastTokEnd = this.pos;
// The context stack is used to superficially track syntactic
// context to predict whether a regular expression is allowed in a
// given position.
this.context = this.initialContext();
this.exprAllowed = true;
// Figure out if it's a module code.
this.inModule = options.sourceType === "module";
this.strict = this.inModule || this.strictDirective(this.pos);
// Used to signify the start of a potential arrow function
this.potentialArrowAt = -1;
// Positions to delayed-check that yield/await does not exist in default parameters.
this.yieldPos = this.awaitPos = this.awaitIdentPos = 0;
// Labels in scope.
this.labels = [];
// Thus-far undefined exports.
this.undefinedExports = {};
// If enabled, skip leading hashbang line.
if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!")
{ this.skipLineComment(2); }
// Scope tracking for duplicate variable names (see scope.js)
this.scopeStack = [];
this.enterScope(SCOPE_TOP);
// For RegExp validation
this.regexpState = null;
}n/a
function extend () {
var plugins = [], len = arguments.length;
while ( len-- ) plugins[ len ] = arguments[ len ];
var cls = this;
for (var i = 0; i < plugins.length; i++) { cls = plugins[i](cls); }
return cls
}n/a
function parse (input, options) {
return new this(options, input).parse()
}...
return dflt;
}
pathname = require("path").resolve(pathname);
// try to read pathname
try {
return (
type === "json"
? JSON.parse(fs.readFileSync(pathname, "utf8"))
: fs.readFileSync(pathname, type)
);
} catch (ignore) {
return dflt;
}
};
local.fsRmrfSync = function (pathname) {
...function parseExpressionAt (input, pos, options) {
var parser = new this(options, input, pos);
parser.nextToken();
return parser.parseExpression()
}...
}
// This function tries to parse a single expression at a given
// offset in a string. Useful for parsing mixed-language formats
// that embed JavaScript expressions.
function parseExpressionAt(input, pos, options) {
return Parser.parseExpressionAt(input, pos, options)
}
// Acorn is organized as a tokenizer and a recursive-descent parser.
// The `tokenizer` export provides an interface to the tokenizer.
function tokenizer(input, options) {
return Parser.tokenizer(input, options)
...function tokenizer (input, options) {
return new this(options, input)
}...
return Parser.parseExpressionAt(input, pos, options)
}
// Acorn is organized as a tokenizer and a recursive-descent parser.
// The `tokenizer` export provides an interface to the tokenizer.
function tokenizer(input, options) {
return Parser.tokenizer(input, options)
}
exports.Node = Node;
exports.Parser = Parser;
exports.Position = Position;
exports.SourceLocation = SourceLocation;
exports.TokContext = TokContext;
...function(statements) {
for (var i = 0; i < statements.length && this.isDirectiveCandidate(statements[i]); ++i) {
statements[i].directive = statements[i].expression.raw.slice(1, -1);
}
}...
if (this.inModule)
{ for (var i = 0, list = Object.keys(this.undefinedExports); i < list.length; i += 1)
{
var name = list[i];
this.raiseRecoverable(this.undefinedExports[name].start, ("Export '" + name + "' is not defined
"));
} }
this.adaptDirectivePrologue(node.body);
this.next();
node.sourceType = this.options.sourceType;
return this.finishNode(node, "Program")
};
var loopLabel = {kind: "loop"}, switchLabel = {kind: "switch"};
...function(tokType, notNext) {
if (this.type === tokType) {
if (this.options.onTrailingComma)
{ this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); }
if (!notNext)
{ this.next(); }
return true
}
}...
pp$1.parseExportSpecifiers = function(exports) {
var nodes = [], first = true;
// export { x, y as z } [from '...']
this.expect(types.braceL);
while (!this.eat(types.braceR)) {
if (!first) {
this.expect(types.comma);
if (this.afterTrailingComma(types.braceR)) { break }
} else { first = false; }
var node = this.startNode();
node.local = this.parseIdent(true);
node.exported = this.eatContextual("as") ? this.parseIdent(true) : node.local;
this.checkExport(exports, node.exported.name, node.exported.start);
nodes.push(this.finishNode(node, "ExportSpecifier"));
...function(prevType) {
var parent = this.curContext();
if (parent === types$1.f_expr || parent === types$1.f_stat)
{ return true }
if (prevType === types.colon && (parent === types$1.b_stat || parent === types$1.b_expr))
{ return !parent.isExpr }
// The check for `tt.name && exprAllowed` detects whether we are
// after a `yield` or `of` construct. See the `updateContext` for
// `tt.name`.
if (prevType === types._return || prevType === types.name && this.exprAllowed)
{ return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) }
if (prevType === types._else || prevType === types.semi || prevType === types.eof || prevType === types.parenR || prevType ===
types.arrow)
{ return true }
if (prevType === types.braceL)
{ return parent === types$1.b_stat }
if (prevType === types._var || prevType === types._const || prevType === types.name)
{ return false }
return !this.exprAllowed
}...
if (out === types$1.b_stat && this.curContext().token === "function") {
out = this.context.pop();
}
this.exprAllowed = !out.isExpr;
};
types.braceL.updateContext = function(prevType) {
this.context.push(this.braceIsBlock(prevType) ? types$1.b_stat : types$1.b_expr);
this.exprAllowed = true;
};
types.dollarBraceL.updateContext = function() {
this.context.push(types$1.b_tmpl);
this.exprAllowed = true;
};
...function(startPos, startLoc, left, right, op, logical) {
var node = this.startNodeAt(startPos, startLoc);
node.left = left;
node.operator = op;
node.right = right;
return this.finishNode(node, logical ? "LogicalExpression" : "BinaryExpression")
}...
if (prec != null && (!noIn || this.type !== types._in)) {
if (prec > minPrec) {
var logical = this.type === types.logicalOR || this.type === types.logicalAND;
var op = this.value;
this.next();
var startPos = this.start, startLoc = this.startLoc;
var right = this.parseExprOp(this.parseMaybeUnary(null, false), startPos, startLoc, prec, noIn);
var node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical
);
return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn)
}
}
return left
};
pp$3.buildBinary = function(startPos, startLoc, left, right, op, logical) {
...function() {
return this.type === types.eof ||
this.type === types.braceR ||
lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
}...
pp.canInsertSemicolon = function() {
return this.type === types.eof ||
this.type === types.braceR ||
lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
};
pp.insertSemicolon = function() {
if (this.canInsertSemicolon()) {
if (this.options.onInsertedSemicolon)
{ this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc); }
return true
}
};
// Consume a semicolon, or, failing that, see if we are allowed to
...function(exports, name, pos) {
if (!exports) { return }
if (has(exports, name))
{ this.raiseRecoverable(pos, "Duplicate export '" + name + "'"); }
exports[name] = true;
}...
this.expectContextual("from");
if (this.type !== types.string) { this.unexpected(); }
node.source = this.parseExprAtom();
this.semicolon();
return this.finishNode(node, "ExportAllDeclaration")
}
if (this.eat(types._default)) { // export default ...
this.checkExport(exports, "default", this.lastTokStart);
var isAsync;
if (this.type === types._function || (isAsync = this.isAsyncFunction())) {
var fNode = this.startNode();
this.next();
if (isAsync) { this.next(); }
node.declaration = this.parseFunction(fNode, FUNC_STATEMENT | FUNC_NULLABLE_ID, false, isAsync);
} else if (this.type === types._class) {
...function(refDestructuringErrors, andThrow) {
if (!refDestructuringErrors) { return false }
var shorthandAssign = refDestructuringErrors.shorthandAssign;
var doubleProto = refDestructuringErrors.doubleProto;
if (!andThrow) { return shorthandAssign >= 0 || doubleProto >= 0 }
if (shorthandAssign >= 0)
{ this.raise(shorthandAssign, "Shorthand property assignments are valid only in destructuring patterns"); }
if (doubleProto >= 0)
{ this.raiseRecoverable(doubleProto, "Redefinition of __proto__ property"); }
}...
if (awaitAt > -1) { this.unexpected(awaitAt); }
} else { node.await = awaitAt > -1; }
}
this.toAssignable(init, false, refDestructuringErrors);
this.checkLVal(init);
return this.parseForIn(node, init)
} else {
this.checkExpressionErrors(refDestructuringErrors, true);
}
if (awaitAt > -1) { this.unexpected(awaitAt); }
return this.parseFor(node, init)
};
pp$1.parseFunctionStatement = function(node, isAsync, declarationPosition) {
this.next();
...function(expr, bindingType, checkClashes) {
if ( bindingType === void 0 ) bindingType = BIND_NONE;
switch (expr.type) {
case "Identifier":
if (bindingType === BIND_LEXICAL && expr.name === "let")
{ this.raiseRecoverable(expr.start, "let is disallowed as a lexically bound name"); }
if (this.strict && this.reservedWordsStrictBind.test(expr.name))
{ this.raiseRecoverable(expr.start, (bindingType ? "Binding " : "Assigning to ") + expr.name + " in strict mode"); }
if (checkClashes) {
if (has(checkClashes, expr.name))
{ this.raiseRecoverable(expr.start, "Argument name clash"); }
checkClashes[expr.name] = true;
}
if (bindingType !== BIND_NONE && bindingType !== BIND_OUTSIDE) { this.declareName(expr.name, bindingType, expr.start); }
break
case "MemberExpression":
if (bindingType) { this.raiseRecoverable(expr.start, "Binding member expression"); }
break
case "ObjectPattern":
for (var i = 0, list = expr.properties; i < list.length; i += 1)
{
var prop = list[i];
this.checkLVal(prop, bindingType, checkClashes);
}
break
case "Property":
// AssignmentProperty has type === "Property"
this.checkLVal(expr.value, bindingType, checkClashes);
break
case "ArrayPattern":
for (var i$1 = 0, list$1 = expr.elements; i$1 < list$1.length; i$1 += 1) {
var elem = list$1[i$1];
if (elem) { this.checkLVal(elem, bindingType, checkClashes); }
}
break
case "AssignmentPattern":
this.checkLVal(expr.left, bindingType, checkClashes);
break
case "RestElement":
this.checkLVal(expr.argument, bindingType, checkClashes);
break
case "ParenthesizedExpression":
this.checkLVal(expr.expression, bindingType, checkClashes);
break
default:
this.raise(expr.start, (bindingType ? "Binding" : "Assigning to") + " rvalue");
}
}...
if (this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
if (this.options.ecmaVersion >= 9) {
if (this.type === types._in) {
if (awaitAt > -1) { this.unexpected(awaitAt); }
} else { node.await = awaitAt > -1; }
}
this.toAssignable(init, false, refDestructuringErrors);
this.checkLVal(init);
return this.parseForIn(node, init)
} else {
this.checkExpressionErrors(refDestructuringErrors, true);
}
if (awaitAt > -1) { this.unexpected(awaitAt); }
return this.parseFor(node, init)
};
...function(id) {
// scope.functions must be empty as Module code is always strict.
if (this.scopeStack[0].lexical.indexOf(id.name) === -1 &&
this.scopeStack[0].var.indexOf(id.name) === -1) {
this.undefinedExports[id.name] = id;
}
}...
} else {
for (var i = 0, list = node.specifiers; i < list.length; i += 1) {
// check for keywords used as local names
var spec = list[i];
this.checkUnreserved(spec.local);
// check if export is defined
this.checkLocalExport(spec.local);
}
node.source = null;
}
this.semicolon();
}
return this.finishNode(node, "ExportNamedDeclaration")
...function(node, allowDuplicates) {
var nameHash = {};
for (var i = 0, list = node.params; i < list.length; i += 1)
{
var param = list[i];
this.checkLVal(param, BIND_VAR, allowDuplicates ? null : nameHash);
}
}...
pp$3.parseFunctionBody = function(node, isArrowFunction, isMethod) {
var isExpression = isArrowFunction && this.type !== types.braceL;
var oldStrict = this.strict, useStrict = false;
if (isExpression) {
node.body = this.parseMaybeAssign();
node.expression = true;
this.checkParams(node, false);
} else {
var nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(node.params);
if (!oldStrict || nonSimple) {
useStrict = this.strictDirective(this.end);
// If this is a strict mode function, verify that argument names
// are not repeated, and it does not try to bind the words `eval`
// or `arguments`.
...function(refDestructuringErrors, isAssign) {
if (!refDestructuringErrors) { return }
if (refDestructuringErrors.trailingComma > -1)
{ this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element"); }
var parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind;
if (parens > -1) { this.raiseRecoverable(parens, "Parenthesized pattern"); }
}...
case "ObjectPattern":
case "ArrayPattern":
case "RestElement":
break
case "ObjectExpression":
node.type = "ObjectPattern";
if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
for (var i = 0, list = node.properties; i < list.length; i += 1) {
var prop = list[i];
this.toAssignable(prop, isBinding);
// Early error:
// AssignmentRestProperty[Yield, Await] :
// `...` DestructuringAssignmentTarget[Yield, Await]
...function(exports, pat) {
var type = pat.type;
if (type === "Identifier")
{ this.checkExport(exports, pat.name, pat.start); }
else if (type === "ObjectPattern")
{ for (var i = 0, list = pat.properties; i < list.length; i += 1)
{
var prop = list[i];
this.checkPatternExport(exports, prop);
} }
else if (type === "ArrayPattern")
{ for (var i$1 = 0, list$1 = pat.elements; i$1 < list$1.length; i$1 += 1) {
var elt = list$1[i$1];
if (elt) { this.checkPatternExport(exports, elt); }
} }
else if (type === "Property")
{ this.checkPatternExport(exports, pat.value); }
else if (type === "AssignmentPattern")
{ this.checkPatternExport(exports, pat.left); }
else if (type === "RestElement")
{ this.checkPatternExport(exports, pat.argument); }
else if (type === "ParenthesizedExpression")
{ this.checkPatternExport(exports, pat.expression); }
}...
if (type === "Identifier")
{ this.checkExport(exports, pat.name, pat.start); }
else if (type === "ObjectPattern")
{ for (var i = 0, list = pat.properties; i < list.length; i += 1)
{
var prop = list[i];
this.checkPatternExport(exports, prop);
} }
else if (type === "ArrayPattern")
{ for (var i$1 = 0, list$1 = pat.elements; i$1 < list$1.length; i$1 += 1) {
var elt = list$1[i$1];
if (elt) { this.checkPatternExport(exports, elt); }
} }
...function(prop, propHash, refDestructuringErrors) {
if (this.options.ecmaVersion >= 9 && prop.type === "SpreadElement")
{ return }
if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand))
{ return }
var key = prop.key;
var name;
switch (key.type) {
case "Identifier": name = key.name; break
case "Literal": name = String(key.value); break
default: return
}
var kind = prop.kind;
if (this.options.ecmaVersion >= 6) {
if (name === "__proto__" && kind === "init") {
if (propHash.proto) {
if (refDestructuringErrors && refDestructuringErrors.doubleProto < 0) { refDestructuringErrors.doubleProto = key.start; }
// Backwards-compat kludge. Can be removed in version 6.0
else { this.raiseRecoverable(key.start, "Redefinition of __proto__ property"); }
}
propHash.proto = true;
}
return
}
name = "$" + name;
var other = propHash[name];
if (other) {
var redefinition;
if (kind === "init") {
redefinition = this.strict && other.init || other.get || other.set;
} else {
redefinition = other.init || other[kind];
}
if (redefinition)
{ this.raiseRecoverable(key.start, "Redefinition of property"); }
} else {
other = propHash[name] = {
init: false,
get: false,
set: false
};
}
other[kind] = true;
}...
while (!this.eat(types.braceR)) {
if (!first) {
this.expect(types.comma);
if (this.afterTrailingComma(types.braceR)) { break }
} else { first = false; }
var prop = this.parseProperty(isPattern, refDestructuringErrors);
if (!isPattern) { this.checkPropClash(prop, propHash, refDestructuringErrors); }
node.properties.push(prop);
}
return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression")
};
pp$3.parseProperty = function(isPattern, refDestructuringErrors) {
var prop = this.startNode(), isGenerator, isAsync, startPos, startLoc;
...function(ref) {
var start = ref.start;
var end = ref.end;
var name = ref.name;
if (this.inGenerator && name === "yield")
{ this.raiseRecoverable(start, "Cannot use 'yield' as identifier inside a generator"); }
if (this.inAsync && name === "await")
{ this.raiseRecoverable(start, "Cannot use 'await' as identifier inside an async function"); }
if (this.keywords.test(name))
{ this.raise(start, ("Unexpected keyword '" + name + "'")); }
if (this.options.ecmaVersion < 6 &&
this.input.slice(start, end).indexOf("\\") !== -1) { return }
var re = this.strict ? this.reservedWordsStrict : this.reservedWords;
if (re.test(name)) {
if (!this.inAsync && name === "await")
{ this.raiseRecoverable(start, "Cannot use keyword 'await' outside an async function"); }
this.raiseRecoverable(start, ("The keyword '" + name + "' is reserved"));
}
}...
if (this.type !== types.string) { this.unexpected(); }
node.source = this.parseExprAtom();
} else {
for (var i = 0, list = node.specifiers; i < list.length; i += 1) {
// check for keywords used as local names
var spec = list[i];
this.checkUnreserved(spec.local);
// check if export is defined
this.checkLocalExport(spec.local);
}
node.source = null;
}
this.semicolon();
...function(exports, decls) {
if (!exports) { return }
for (var i = 0, list = decls; i < list.length; i += 1)
{
var decl = list[i];
this.checkPatternExport(exports, decl.id);
}
}...
}
return this.finishNode(node, "ExportDefaultDeclaration")
}
// export var|const|let|function|class ...
if (this.shouldParseExportStatement()) {
node.declaration = this.parseStatement(null);
if (node.declaration.type === "VariableDeclaration")
{ this.checkVariableExport(exports, node.declaration.declarations); }
else
{ this.checkExport(exports, node.declaration.id.name, node.declaration.id.start); }
node.specifiers = [];
node.source = null;
} else { // export { x, y as z } [from '...']
node.declaration = null;
node.specifiers = this.parseExportSpecifiers(exports);
...function() {
if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos))
{ this.raise(this.yieldPos, "Yield expression cannot be a default value"); }
if (this.awaitPos)
{ this.raise(this.awaitPos, "Await expression cannot be a default value"); }
}...
this.awaitIdentPos = oldAwaitIdentPos;
return this.finishNode(node, (statement & FUNC_STATEMENT) ? "FunctionDeclaration" : "FunctionExpression"
;)
};
pp$1.parseFunctionParams = function(node) {
this.expect(types.parenL);
node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
this.checkYieldAwaitInDefaultParams();
};
// Parse a class declaration or literal (depending on the
// `isStatement` parameter).
pp$1.parseClass = function(node, isStatement) {
this.next();
...function() {
return this.context[this.context.length - 1]
}...
var pp$7 = Parser.prototype;
pp$7.initialContext = function() {
return [types$1.b_stat]
};
pp$7.braceIsBlock = function(prevType) {
var parent = this.curContext();
if (parent === types$1.f_expr || parent === types$1.f_stat)
{ return true }
if (prevType === types.colon && (parent === types$1.b_stat || parent === types$1.b_expr))
{ return !parent.isExpr }
// The check for `tt.name && exprAllowed` detects whether we are
// after a `yield` or `of` construct. See the `updateContext` for
...function() {
if (this.options.locations) {
return new Position(this.curLine, this.pos - this.lineStart)
}
}...
this.type = types.eof;
// For tokens that include more information than their type, the value
this.value = null;
// Its start and end offset
this.start = this.end = this.pos;
// And, if locations are used, the {line, column} object
// corresponding to those offsets
this.startLoc = this.endLoc = this.curPosition();
// Position information for the previous token
this.lastTokEndLoc = this.lastTokStartLoc = null;
this.lastTokStart = this.lastTokEnd = this.pos;
// The context stack is used to superficially track syntactic
// context to predict whether a regular expression is allowed in a
...function() {
return this.scopeStack[this.scopeStack.length - 1]
}...
};
prototypeAccessors.inFunction.get = function () { return (this.currentVarScope().flags & SCOPE_FUNCTION) > 0 };
prototypeAccessors.inGenerator.get = function () { return (this.currentVarScope().flags & SCOPE_GENERATOR) > 0 };
prototypeAccessors.inAsync.get = function () { return (this.currentVarScope().flags & SCOPE_ASYNC) > 0 };
prototypeAccessors.allowSuper.get = function () { return (this.currentThisScope().flags & SCOPE_SUPER) > 0 };
prototypeAccessors.allowDirectSuper.get = function () { return (this.currentThisScope().flags & SCOPE_DIRECT_SUPER) > 0 };
prototypeAccessors.treatFunctionsAsVar.get = function () { return this.treatFunctionsAsVarInScope(this.currentScope()) };
// Switch to a getter for 7.0.0.
Parser.prototype.inNonArrowFunction = function inNonArrowFunction () { return (this.currentThisScope().flags & SCOPE_FUNCTION
) > 0 };
Parser.extend = function extend () {
var plugins = [], len = arguments.length;
while ( len-- ) plugins[ len ] = arguments[ len ];
...function() {
for (var i = this.scopeStack.length - 1;; i--) {
var scope = this.scopeStack[i];
if (scope.flags & SCOPE_VAR && !(scope.flags & SCOPE_ARROW)) { return scope }
}
}...
this.nextToken();
return this.parseTopLevel(node)
};
prototypeAccessors.inFunction.get = function () { return (this.currentVarScope().flags & SCOPE_FUNCTION) > 0 };
prototypeAccessors.inGenerator.get = function () { return (this.currentVarScope().flags & SCOPE_GENERATOR) > 0 };
prototypeAccessors.inAsync.get = function () { return (this.currentVarScope().flags & SCOPE_ASYNC) > 0 };
prototypeAccessors.allowSuper.get = function () { return (this.currentThisScope().flags
& SCOPE_SUPER) > 0 };
prototypeAccessors.allowDirectSuper.get = function () { return (this.currentThisScope().flags & SCOPE_DIRECT_SUPER) > 0 };
prototypeAccessors.treatFunctionsAsVar.get = function () { return this.treatFunctionsAsVarInScope(this.currentScope()) };
// Switch to a getter for 7.0.0.
Parser.prototype.inNonArrowFunction = function inNonArrowFunction () { return (this.currentThisScope().flags & SCOPE_FUNCTION
) > 0 };
Parser.extend = function extend () {
...function() {
for (var i = this.scopeStack.length - 1;; i--) {
var scope = this.scopeStack[i];
if (scope.flags & SCOPE_VAR) { return scope }
}
}...
Parser.prototype.parse = function parse () {
var node = this.options.program || this.startNode();
this.nextToken();
return this.parseTopLevel(node)
};
prototypeAccessors.inFunction.get = function () { return (this.currentVarScope().flags
& SCOPE_FUNCTION) > 0 };
prototypeAccessors.inGenerator.get = function () { return (this.currentVarScope().flags & SCOPE_GENERATOR) > 0 };
prototypeAccessors.inAsync.get = function () { return (this.currentVarScope().flags & SCOPE_ASYNC) > 0 };
prototypeAccessors.allowSuper.get = function () { return (this.currentThisScope().flags & SCOPE_SUPER) > 0 };
prototypeAccessors.allowDirectSuper.get = function () { return (this.currentThisScope().flags & SCOPE_DIRECT_SUPER) > 0 };
prototypeAccessors.treatFunctionsAsVar.get = function () { return this.treatFunctionsAsVarInScope(this.currentScope()) };
// Switch to a getter for 7.0.0.
...function(name, bindingType, pos) {
var redeclared = false;
if (bindingType === BIND_LEXICAL) {
var scope = this.currentScope();
redeclared = scope.lexical.indexOf(name) > -1 || scope.functions.indexOf(name) > -1 || scope.var.indexOf(name) > -1;
scope.lexical.push(name);
if (this.inModule && (scope.flags & SCOPE_TOP))
{ delete this.undefinedExports[name]; }
} else if (bindingType === BIND_SIMPLE_CATCH) {
var scope$1 = this.currentScope();
scope$1.lexical.push(name);
} else if (bindingType === BIND_FUNCTION) {
var scope$2 = this.currentScope();
if (this.treatFunctionsAsVar)
{ redeclared = scope$2.lexical.indexOf(name) > -1; }
else
{ redeclared = scope$2.lexical.indexOf(name) > -1 || scope$2.var.indexOf(name) > -1; }
scope$2.functions.push(name);
} else {
for (var i = this.scopeStack.length - 1; i >= 0; --i) {
var scope$3 = this.scopeStack[i];
if (scope$3.lexical.indexOf(name) > -1 && !((scope$3.flags & SCOPE_SIMPLE_CATCH) && scope$3.lexical[0] === name) ||
!this.treatFunctionsAsVarInScope(scope$3) && scope$3.functions.indexOf(name) > -1) {
redeclared = true;
break
}
scope$3.var.push(name);
if (this.inModule && (scope$3.flags & SCOPE_TOP))
{ delete this.undefinedExports[name]; }
if (scope$3.flags & SCOPE_VAR) { break }
}
}
if (redeclared) { this.raiseRecoverable(pos, ("Identifier '" + name + "' has already been declared")); }
}...
if (this.strict && this.reservedWordsStrictBind.test(expr.name))
{ this.raiseRecoverable(expr.start, (bindingType ? "Binding " : "Assigning to ") + expr.name + " in
strict mode"); }
if (checkClashes) {
if (has(checkClashes, expr.name))
{ this.raiseRecoverable(expr.start, "Argument name clash"); }
checkClashes[expr.name] = true;
}
if (bindingType !== BIND_NONE && bindingType !== BIND_OUTSIDE) { this.declareName(expr.name, bindingType, expr.start); }
break
case "MemberExpression":
if (bindingType) { this.raiseRecoverable(expr.start, "Binding member expression"); }
break
case "ObjectPattern":
...function(type) {
if (this.type === type) {
this.next();
return true
} else {
return false
}
}...
}
};
// Consume a semicolon, or, failing that, see if we are allowed to
// pretend that there is a semicolon at this position.
pp.semicolon = function() {
if (!this.eat(types.semi) && !this.insertSemicolon()) { this.unexpected(); }
};
pp.afterTrailingComma = function(tokType, notNext) {
if (this.type === tokType) {
if (this.options.onTrailingComma)
{ this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); }
if (!notNext)
...function(name) {
if (!this.isContextual(name)) { return false }
this.next();
return true
}...
this.next();
return true
};
// Asserts that following token is given contextual keyword.
pp.expectContextual = function(name) {
if (!this.eatContextual(name)) { this.unexpected(); }
};
// Test whether a semicolon can be inserted at the current position.
pp.canInsertSemicolon = function() {
return this.type === types.eof ||
this.type === types.braceR ||
...function(flags) {
this.scopeStack.push(new Scope(flags));
}...
// If enabled, skip leading hashbang line.
if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!")
{ this.skipLineComment(2); }
// Scope tracking for duplicate variable names (see scope.js)
this.scopeStack = [];
this.enterScope(SCOPE_TOP);
// For RegExp validation
this.regexpState = null;
};
var prototypeAccessors = { inFunction: { configurable: true },inGenerator: { configurable: true },inAsync: { configurable: true },
allowSuper: { configurable: true },allowDirectSuper: { configurable: true },treatFunctionsAsVar: { configurable: true } };
...function() {
this.scopeStack.pop();
}...
}
this.expect(types.colon);
} else {
if (!cur) { this.unexpected(); }
cur.consequent.push(this.parseStatement(null));
}
}
this.exitScope();
if (cur) { this.finishNode(cur, "SwitchCase"); }
this.next(); // Closing brace
this.labels.pop();
return this.finishNode(node, "SwitchStatement")
};
pp$1.parseThrowStatement = function(node) {
...function(type) {
this.eat(type) || this.unexpected();
}...
};
pp$1.parseDoStatement = function(node) {
this.next();
this.labels.push(loopLabel);
node.body = this.parseStatement("do");
this.labels.pop();
this.expect(types._while);
node.test = this.parseParenExpression();
if (this.options.ecmaVersion >= 6)
{ this.eat(types.semi); }
else
{ this.semicolon(); }
return this.finishNode(node, "DoWhileStatement")
};
...function(name) {
if (!this.eatContextual(name)) { this.unexpected(); }
}...
// Parses module export declaration.
pp$1.parseExport = function(node, exports) {
this.next();
// export * from '...'
if (this.eat(types.star)) {
this.expectContextual("from");
if (this.type !== types.string) { this.unexpected(); }
node.source = this.parseExprAtom();
this.semicolon();
return this.finishNode(node, "ExportAllDeclaration")
}
if (this.eat(types._default)) { // export default ...
this.checkExport(exports, "default", this.lastTokStart);
...function(node, type) {
return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc)
}...
var name = list[i];
this.raiseRecoverable(this.undefinedExports[name].start, ("Export '" + name + "' is not defined
"));
} }
this.adaptDirectivePrologue(node.body);
this.next();
node.sourceType = this.options.sourceType;
return this.finishNode(node, "Program")
};
var loopLabel = {kind: "loop"}, switchLabel = {kind: "switch"};
pp$1.isLet = function(context) {
if (this.options.ecmaVersion < 6 || !this.isContextual("let")) { return false }
skipWhiteSpace.lastIndex = this.pos;
...function(node, type, pos, loc) {
return finishNodeAt.call(this, node, type, pos, loc)
}...
this.checkExpressionErrors(refDestructuringErrors, true);
this.yieldPos = oldYieldPos || this.yieldPos;
this.awaitPos = oldAwaitPos || this.awaitPos;
if (exprList.length > 1) {
val = this.startNodeAt(innerStartPos, innerStartLoc);
val.expressions = exprList;
this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc);
} else {
val = exprList[0];
}
} else {
val = this.parseParenExpression();
}
...function(type, size) {
var str = this.input.slice(this.pos, this.pos + size);
this.pos += size;
return this.finishToken(type, str)
}...
return this.finishToken(types.dot)
}
};
pp$9.readToken_slash = function() { // '/'
var next = this.input.charCodeAt(this.pos + 1);
if (this.exprAllowed) { ++this.pos; return this.readRegexp() }
if (next === 61) { return this.finishOp(types.assign, 2) }
return this.finishOp(types.slash, 1)
};
pp$9.readToken_mult_modulo_exp = function(code) { // '%*'
var next = this.input.charCodeAt(this.pos + 1);
var size = 1;
var tokentype = code === 42 ? types.star : types.modulo;
...function(type, val) {
this.end = this.pos;
if (this.options.locations) { this.endLoc = this.curPosition(); }
var prevType = this.type;
this.type = type;
this.value = val;
this.updateContext(prevType);
}...
pp$9.nextToken = function() {
var curContext = this.curContext();
if (!curContext || !curContext.preserveSpace) { this.skipSpace(); }
this.start = this.pos;
if (this.options.locations) { this.startLoc = this.curPosition(); }
if (this.pos >= this.input.length) { return this.finishToken(types.eof) }
if (curContext.override) { return curContext.override(this) }
else { this.readToken(this.fullCharCodeAtPos()); }
};
pp$9.readToken = function(code) {
// Identifier or keyword. '\uXXXX' sequences are allowed in
...function() {
var code = this.input.charCodeAt(this.pos);
if (code <= 0xd7ff || code >= 0xe000) { return code }
var next = this.input.charCodeAt(this.pos + 1);
return (code << 10) + next - 0x35fdc00
}...
if (!curContext || !curContext.preserveSpace) { this.skipSpace(); }
this.start = this.pos;
if (this.options.locations) { this.startLoc = this.curPosition(); }
if (this.pos >= this.input.length) { return this.finishToken(types.eof) }
if (curContext.override) { return curContext.override(this) }
else { this.readToken(this.fullCharCodeAtPos()); }
};
pp$9.readToken = function(code) {
// Identifier or keyword. '\uXXXX' sequences are allowed in
// identifiers, so '\' also dispatches to that.
if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */)
{ return this.readWord() }
...function() {
this.next();
return new Token(this)
}...
// When `locations` is on, `loc` properties holding objects with
// `start` and `end` properties in `{line, column}` form (with
// line being 1-based and column 0-based) will be attached to the
// nodes.
locations: false,
// A function can be passed as `onToken` option, which will
// cause Acorn to call that function with object in the same
// format as tokens returned from `tokenizer().getToken()`. Note
// that you are not allowed to call the parser from the
// callback—that will corrupt its internal state.
onToken: null,
// A function can be passed as `onComment` option, which will
// cause Acorn to call that function with `(block, text, start,
// end)` parameters whenever a comment is skipped. `block` is a
// boolean indicating whether this is a block (`/* */`) comment,
...function(code) {
switch (code) {
// The interpretation of a dot depends on whether it is followed
// by a digit or another two dots.
case 46: // '.'
return this.readToken_dot()
// Punctuation tokens.
case 40: ++this.pos; return this.finishToken(types.parenL)
case 41: ++this.pos; return this.finishToken(types.parenR)
case 59: ++this.pos; return this.finishToken(types.semi)
case 44: ++this.pos; return this.finishToken(types.comma)
case 91: ++this.pos; return this.finishToken(types.bracketL)
case 93: ++this.pos; return this.finishToken(types.bracketR)
case 123: ++this.pos; return this.finishToken(types.braceL)
case 125: ++this.pos; return this.finishToken(types.braceR)
case 58: ++this.pos; return this.finishToken(types.colon)
case 63: ++this.pos; return this.finishToken(types.question)
case 96: // '`'
if (this.options.ecmaVersion < 6) { break }
++this.pos;
return this.finishToken(types.backQuote)
case 48: // '0'
var next = this.input.charCodeAt(this.pos + 1);
if (next === 120 || next === 88) { return this.readRadixNumber(16) } // '0x', '0X' - hex number
if (this.options.ecmaVersion >= 6) {
if (next === 111 || next === 79) { return this.readRadixNumber(8) } // '0o', '0O' - octal number
if (next === 98 || next === 66) { return this.readRadixNumber(2) } // '0b', '0B' - binary number
}
// Anything else beginning with a digit is an integer, octal
// number, or float.
case 49: case 50: case 51: case 52: case 53: case 54: case 55: case 56: case 57: // 1-9
return this.readNumber(false)
// Quotes produce strings.
case 34: case 39: // '"', "'"
return this.readString(code)
// Operators are parsed inline in tiny state machines. '=' (61) is
// often referred to. `finishOp` simply skips the amount of
// characters it is given as second argument, and returns a token
// of the type given by its first argument.
case 47: // '/'
return this.readToken_slash()
case 37: case 42: // '%*'
return this.readToken_mult_modulo_exp(code)
case 124: case 38: // '|&'
return this.readToken_pipe_amp(code)
case 94: // '^'
return this.readToken_caret()
case 43: case 45: // '+-'
return this.readToken_plus_min(code)
case 60: case 62: // '<>'
return this.readToken_lt_gt(code)
case 61: case 33: // '=!'
return this.readToken_eq_excl(code)
case 126: // '~'
return this.finishOp(types.prefix, 1)
}
this.raise(this.pos, "Unexpected character '" + codePointToString$1(code) + "'");
}...
pp$9.readToken = function(code) {
// Identifier or keyword. '\uXXXX' sequences are allowed in
// identifiers, so '\' also dispatches to that.
if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */)
{ return this.readWord() }
return this.getTokenFromCode(code)
};
pp$9.fullCharCodeAtPos = function() {
var code = this.input.charCodeAt(this.pos);
if (code <= 0xd7ff || code >= 0xe000) { return code }
var next = this.input.charCodeAt(this.pos + 1);
return (code << 10) + next - 0x35fdc00
...function() {
for (var i = this.context.length - 1; i >= 1; i--) {
var context = this.context[i];
if (context.token === "function")
{ return context.generator }
}
return false
}...
this.exprAllowed = true;
};
types.name.updateContext = function(prevType) {
var allowed = false;
if (this.options.ecmaVersion >= 6 && prevType !== types.dot) {
if (this.value === "of" && !this.exprAllowed ||
this.value === "yield" && this.inGeneratorContext())
{ allowed = true; }
}
this.exprAllowed = allowed;
};
// This file contains Unicode properties extracted from the ECMAScript
// specification. The lists are extracted like so:
...function inNonArrowFunction () { return (this.currentThisScope().flags & SCOPE_FUNCTION) > 0 }...
var meta = this.parseIdent(true);
if (this.options.ecmaVersion >= 6 && this.eat(types.dot)) {
node.meta = meta;
var containsEsc = this.containsEsc;
node.property = this.parseIdent(true);
if (node.property.name !== "target" || containsEsc)
{ this.raiseRecoverable(node.property.start, "The only valid meta property for new is new.target"); }
if (!this.inNonArrowFunction())
{ this.raiseRecoverable(node.start, "new.target can only be used in functions"); }
return this.finishNode(node, "MetaProperty")
}
var startPos = this.start, startLoc = this.startLoc;
node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true);
if (this.options.ecmaVersion > 10 && node.callee.type === "Import") {
this.raise(node.callee.start, "Cannot use new with import(...)");
...function(node) {
node.id = null;
if (this.options.ecmaVersion >= 6) { node.generator = node.expression = false; }
if (this.options.ecmaVersion >= 8) { node.async = false; }
}...
var FUNC_STATEMENT = 1, FUNC_HANGING_STATEMENT = 2, FUNC_NULLABLE_ID = 4;
// Parse a function declaration or literal (depending on the
// `statement & FUNC_STATEMENT`).
// Remove `allowExpressionBody` for 7.0.0, as it is only called with false
pp$1.parseFunction = function(node, statement, allowExpressionBody, isAsync) {
this.initFunction(node);
if (this.options.ecmaVersion >= 9 || this.options.ecmaVersion >= 6 && !isAsync) {
if (this.type === types.star && (statement & FUNC_HANGING_STATEMENT))
{ this.unexpected(); }
node.generator = this.eat(types.star);
}
if (this.options.ecmaVersion >= 8)
{ node.async = !!isAsync; }
...function() {
return [types$1.b_stat]
}...
// Position information for the previous token
this.lastTokEndLoc = this.lastTokStartLoc = null;
this.lastTokStart = this.lastTokEnd = this.pos;
// The context stack is used to superficially track syntactic
// context to predict whether a regular expression is allowed in a
// given position.
this.context = this.initialContext();
this.exprAllowed = true;
// Figure out if it's a module code.
this.inModule = options.sourceType === "module";
this.strict = this.inModule || this.strictDirective(this.pos);
// Used to signify the start of a potential arrow function
...function() {
if (this.canInsertSemicolon()) {
if (this.options.onInsertedSemicolon)
{ this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc); }
return true
}
}...
}
};
// Consume a semicolon, or, failing that, see if we are allowed to
// pretend that there is a semicolon at this position.
pp.semicolon = function() {
if (!this.eat(types.semi) && !this.insertSemicolon()) { this.unexpected(); }
};
pp.afterTrailingComma = function(tokType, notNext) {
if (this.type === tokType) {
if (this.options.onTrailingComma)
{ this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); }
if (!notNext)
...function(position, message) {
if (this.inTemplateElement && this.options.ecmaVersion >= 9) {
throw INVALID_TEMPLATE_ESCAPE_ERROR
} else {
this.raise(position, message);
}
}...
var ch = this.input.charCodeAt(this.pos), code;
if (ch === 123) { // '{'
if (this.options.ecmaVersion < 6) { this.unexpected(); }
var codePos = ++this.pos;
code = this.readHexChar(this.input.indexOf("}", this.pos) - this.pos);
++this.pos;
if (code > 0x10FFFF) { this.invalidStringToken(codePos, "Code point out of
bounds"); }
} else {
code = this.readHexChar(4);
}
return code
};
function codePointToString$1(code) {
...function() {
if (this.options.ecmaVersion < 8 || !this.isContextual("async"))
{ return false }
skipWhiteSpace.lastIndex = this.pos;
var skip = skipWhiteSpace.exec(this.input);
var next = this.pos + skip[0].length;
return !lineBreak.test(this.input.slice(this.pos, next)) &&
this.input.slice(next, next + 8) === "function" &&
(next + 8 === this.input.length || !isIdentifierChar(this.input.charAt(next + 8)))
}...
// If the statement does not start with a statement keyword or a
// brace, it's an ExpressionStatement or LabeledStatement. We
// simply start parsing an expression, and afterwards, if the
// next token is a colon and the expression was a simple
// Identifier node, we switch to interpreting it as a label.
default:
if (this.isAsyncFunction()) {
if (context) { this.unexpected(); }
this.next();
return this.parseFunctionStatement(node, true, !context)
}
var maybeName = this.value, expr = this.parseExpression();
if (starttype === types.name && expr.type === "Identifier" && this.eat(types.colon))
...function(prop) {
return !prop.computed && prop.key.type === "Identifier" && prop.key.name === "async" &&
(this.type === types.name || this.type === types.num || this.type === types.string || this.type === types.bracketL || this.type
.keyword || (this.options.ecmaVersion >= 9 && this.type === types.star)) &&
!lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
}...
startLoc = this.startLoc;
}
if (!isPattern)
{ isGenerator = this.eat(types.star); }
}
var containsEsc = this.containsEsc;
this.parsePropertyName(prop);
if (!isPattern && !containsEsc && this.options.ecmaVersion >= 8 && !isGenerator && this.isAsyncProp(prop)) {
isAsync = true;
isGenerator = this.options.ecmaVersion >= 9 && this.eat(types.star);
this.parsePropertyName(prop, refDestructuringErrors);
} else {
isAsync = false;
}
this.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc);
...function(name) {
return this.type === types.name && this.value === name && !this.containsEsc
}...
pp.isContextual = function(name) {
return this.type === types.name && this.value === name && !this.containsEsc
};
// Consumes contextual keyword if possible.
pp.eatContextual = function(name) {
if (!this.isContextual(name)) { return false }
this.next();
return true
};
// Asserts that following token is given contextual keyword.
pp.expectContextual = function(name) {
...function(statement) {
return (
statement.type === "ExpressionStatement" &&
statement.expression.type === "Literal" &&
typeof statement.expression.value === "string" &&
// Reject parenthesized strings.
(this.input[statement.start] === "\"" || this.input[statement.start] === "'")
)
}...
nodes.push(this.finishNode(node$2, "ImportSpecifier"));
}
return nodes
};
// Set `ExpressionStatement#directive` property for directive prologues.
pp$1.adaptDirectivePrologue = function(statements) {
for (var i = 0; i < statements.length && this.isDirectiveCandidate(statements
[i]); ++i) {
statements[i].directive = statements[i].expression.raw.slice(1, -1);
}
};
pp$1.isDirectiveCandidate = function(statement) {
return (
statement.type === "ExpressionStatement" &&
statement.expression.type === "Literal" &&
...function(context) {
if (this.options.ecmaVersion < 6 || !this.isContextual("let")) { return false }
skipWhiteSpace.lastIndex = this.pos;
var skip = skipWhiteSpace.exec(this.input);
var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);
// For ambiguous cases, determine if a LexicalDeclaration (or only a
// Statement) is allowed here. If context is not empty then only a Statement
// is allowed. However, `let [` is an explicit negative lookahead for
// ExpressionStatement, so special-case it first.
if (nextCh === 91) { return true } // '['
if (context) { return false }
if (nextCh === 123) { return true } // '{'
if (isIdentifierStart(nextCh, true)) {
var pos = next + 1;
while (isIdentifierChar(this.input.charCodeAt(pos), true)) { ++pos; }
var ident = this.input.slice(next, pos);
if (!keywordRelationalOperator.test(ident)) { return true }
}
return false
}...
// regular expression literal. This is to handle cases like
// `if (foo) /blah/.exec(foo)`, where looking at the previous token
// does not help.
pp$1.parseStatement = function(context, topLevel, exports) {
var starttype = this.type, node = this.startNode(), kind;
if (this.isLet(context)) {
starttype = types._var;
kind = "let";
}
// Most types of statements are recognized by the keyword they
// start with. Many are trivial to parse, some require a bit of
// complexity.
...function(expr) {
if (expr.type === "ParenthesizedExpression")
{ return this.isSimpleAssignTarget(expr.expression) }
return expr.type === "Identifier" || expr.type === "MemberExpression"
}...
{ this.raise(this.yieldPos, "Yield expression cannot be a default value"); }
if (this.awaitPos)
{ this.raise(this.awaitPos, "Await expression cannot be a default value"); }
};
pp.isSimpleAssignTarget = function(expr) {
if (expr.type === "ParenthesizedExpression")
{ return this.isSimpleAssignTarget(expr.expression) }
return expr.type === "Identifier" || expr.type === "MemberExpression"
};
var pp$1 = Parser.prototype;
// ### Statement parsing
...function(params) {
for (var i = 0, list = params; i < list.length; i += 1)
{
var param = list[i];
if (param.type !== "Identifier") { return false
} }
return true
}...
var oldStrict = this.strict, useStrict = false;
if (isExpression) {
node.body = this.parseMaybeAssign();
node.expression = true;
this.checkParams(node, false);
} else {
var nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(
node.params);
if (!oldStrict || nonSimple) {
useStrict = this.strictDirective(this.end);
// If this is a strict mode function, verify that argument names
// are not repeated, and it does not try to bind the words `eval`
// or `arguments`.
if (useStrict && nonSimple)
{ this.raiseRecoverable(node.start, "Illegal 'use strict' directive in function with non-simple parameter list
"); }
...function() {
if (this.options.onToken)
{ this.options.onToken(new Token(this)); }
this.lastTokEnd = this.end;
this.lastTokStart = this.start;
this.lastTokEndLoc = this.endLoc;
this.lastTokStartLoc = this.startLoc;
this.nextToken();
}...
};
// Predicate that tests whether the next token is of the given
// type, and if yes, consumes it as a side effect.
pp.eat = function(type) {
if (this.type === type) {
this.next();
return true
} else {
return false
}
};
// Tests whether parsed token is a contextual keyword.
...function() {
var curContext = this.curContext();
if (!curContext || !curContext.preserveSpace) { this.skipSpace(); }
this.start = this.pos;
if (this.options.locations) { this.startLoc = this.curPosition(); }
if (this.pos >= this.input.length) { return this.finishToken(types.eof) }
if (curContext.override) { return curContext.override(this) }
else { this.readToken(this.fullCharCodeAtPos()); }
}...
this.regexpState = null;
};
var prototypeAccessors = { inFunction: { configurable: true },inGenerator: { configurable: true },inAsync: { configurable: true },
allowSuper: { configurable: true },allowDirectSuper: { configurable: true },treatFunctionsAsVar: { configurable: true } };
Parser.prototype.parse = function parse () {
var node = this.options.program || this.startNode();
this.nextToken();
return this.parseTopLevel(node)
};
prototypeAccessors.inFunction.get = function () { return (this.currentVarScope().flags & SCOPE_FUNCTION) > 0 };
prototypeAccessors.inGenerator.get = function () { return (this.currentVarScope().flags & SCOPE_GENERATOR) > 0 };
prototypeAccessors.inAsync.get = function () { return (this.currentVarScope().flags & SCOPE_ASYNC) > 0 };
prototypeAccessors.allowSuper.get = function () { return (this.currentThisScope().flags & SCOPE_SUPER) > 0 };
...function parse () {
var node = this.options.program || this.startNode();
this.nextToken();
return this.parseTopLevel(node)
}...
return dflt;
}
pathname = require("path").resolve(pathname);
// try to read pathname
try {
return (
type === "json"
? JSON.parse(fs.readFileSync(pathname, "utf8"))
: fs.readFileSync(pathname, type)
);
} catch (ignore) {
return dflt;
}
};
local.fsRmrfSync = function (pathname) {
...function(node, params, isAsync) {
var oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;
this.enterScope(functionFlags(isAsync, false) | SCOPE_ARROW);
this.initFunction(node);
if (this.options.ecmaVersion >= 8) { node.async = !!isAsync; }
this.yieldPos = 0;
this.awaitPos = 0;
this.awaitIdentPos = 0;
node.params = this.toAssignableList(params, true);
this.parseFunctionBody(node, true, false);
this.yieldPos = oldYieldPos;
this.awaitPos = oldAwaitPos;
this.awaitIdentPos = oldAwaitIdentPos;
return this.finishNode(node, "ArrowFunctionExpression")
}...
this.checkPatternErrors(refDestructuringErrors, false);
this.checkYieldAwaitInDefaultParams();
if (this.awaitIdentPos > 0)
{ this.raise(this.awaitIdentPos, "Cannot use 'await' as identifier inside an async function"); }
this.yieldPos = oldYieldPos;
this.awaitPos = oldAwaitPos;
this.awaitIdentPos = oldAwaitIdentPos;
return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, true
)
}
this.checkExpressionErrors(refDestructuringErrors, true);
this.yieldPos = oldYieldPos || this.yieldPos;
this.awaitPos = oldAwaitPos || this.awaitPos;
this.awaitIdentPos = oldAwaitIdentPos || this.awaitIdentPos;
var node$1 = this.startNodeAt(startPos, startLoc);
node$1.callee = base;
...function() {
if (!this.awaitPos) { this.awaitPos = this.start; }
var node = this.startNode();
this.next();
node.argument = this.parseMaybeUnary(null, true);
return this.finishNode(node, "AwaitExpression")
}...
};
// Parse unary operators, both prefix and postfix.
pp$3.parseMaybeUnary = function(refDestructuringErrors, sawUnary) {
var startPos = this.start, startLoc = this.startLoc, expr;
if (this.isContextual("await") && (this.inAsync || (!this.inFunction && this.options.allowAwaitOutsideFunction
))) {
expr = this.parseAwait();
sawUnary = true;
} else if (this.type.prefix) {
var node = this.startNode(), update = this.type === types.incDec;
node.operator = this.value;
node.prefix = true;
this.next();
node.argument = this.parseMaybeUnary(null, true);
...function() {
if (this.options.ecmaVersion >= 6) {
switch (this.type) {
case types.bracketL:
var node = this.startNode();
this.next();
node.elements = this.parseBindingList(types.bracketR, true, true);
return this.finishNode(node, "ArrayPattern")
case types.braceL:
return this.parseObj(true)
}
}
return this.parseIdent()
}...
this.next();
node.block = this.parseBlock();
node.handler = null;
if (this.type === types._catch) {
var clause = this.startNode();
this.next();
if (this.eat(types.parenL)) {
clause.param = this.parseBindingAtom();
var simple = clause.param.type === "Identifier";
this.enterScope(simple ? SCOPE_SIMPLE_CATCH : 0);
this.checkLVal(clause.param, simple ? BIND_SIMPLE_CATCH : BIND_LEXICAL);
this.expect(types.parenR);
} else {
if (this.options.ecmaVersion < 10) { this.unexpected(); }
clause.param = null;
...function(close, allowEmpty, allowTrailingComma) {
var elts = [], first = true;
while (!this.eat(close)) {
if (first) { first = false; }
else { this.expect(types.comma); }
if (allowEmpty && this.type === types.comma) {
elts.push(null);
} else if (allowTrailingComma && this.afterTrailingComma(close)) {
break
} else if (this.type === types.ellipsis) {
var rest = this.parseRestBinding();
this.parseBindingListItem(rest);
elts.push(rest);
if (this.type === types.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
this.expect(close);
break
} else {
var elem = this.parseMaybeDefault(this.start, this.startLoc);
this.parseBindingListItem(elem);
elts.push(elem);
}
}
return elts
}...
this.awaitPos = oldAwaitPos;
this.awaitIdentPos = oldAwaitIdentPos;
return this.finishNode(node, (statement & FUNC_STATEMENT) ? "FunctionDeclaration" : "FunctionExpression"
;)
};
pp$1.parseFunctionParams = function(node) {
this.expect(types.parenL);
node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion &
gt;= 8);
this.checkYieldAwaitInDefaultParams();
};
// Parse a class declaration or literal (depending on the
// `isStatement` parameter).
pp$1.parseClass = function(node, isStatement) {
...function(param) {
return param
}...
else { this.expect(types.comma); }
if (allowEmpty && this.type === types.comma) {
elts.push(null);
} else if (allowTrailingComma && this.afterTrailingComma(close)) {
break
} else if (this.type === types.ellipsis) {
var rest = this.parseRestBinding();
this.parseBindingListItem(rest);
elts.push(rest);
if (this.type === types.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
this.expect(close);
break
} else {
var elem = this.parseMaybeDefault(this.start, this.startLoc);
this.parseBindingListItem(elem);
...function(createNewLexicalScope, node) {
if ( createNewLexicalScope === void 0 ) createNewLexicalScope = true;
if ( node === void 0 ) node = this.startNode();
node.body = [];
this.expect(types.braceL);
if (createNewLexicalScope) { this.enterScope(0); }
while (!this.eat(types.braceR)) {
var stmt = this.parseStatement(null);
node.body.push(stmt);
}
if (createNewLexicalScope) { this.exitScope(); }
return this.finishNode(node, "BlockStatement")
}...
case types._try: return this.parseTryStatement(node)
case types._const: case types._var:
kind = kind || this.value;
if (context && kind !== "var") { this.unexpected(); }
return this.parseVarStatement(node, kind)
case types._while: return this.parseWhileStatement(node)
case types._with: return this.parseWithStatement(node)
case types.braceL: return this.parseBlock(true, node)
case types.semi: return this.parseEmptyStatement(node)
case types._export:
case types._import:
if (this.options.ecmaVersion > 10 && starttype === types._import) {
skipWhiteSpace.lastIndex = this.pos;
var skip = skipWhiteSpace.exec(this.input);
var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);
...function(node, keyword) {
var isBreak = keyword === "break";
this.next();
if (this.eat(types.semi) || this.insertSemicolon()) { node.label = null; }
else if (this.type !== types.name) { this.unexpected(); }
else {
node.label = this.parseIdent();
this.semicolon();
}
// Verify that there is an actual destination to break or
// continue to.
var i = 0;
for (; i < this.labels.length; ++i) {
var lab = this.labels[i];
if (node.label == null || lab.name === node.label.name) {
if (lab.kind != null && (isBreak || lab.kind === "loop")) { break }
if (node.label && isBreak) { break }
}
}
if (i === this.labels.length) { this.raise(node.start, "Unsyntactic " + keyword); }
return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
}...
}
// Most types of statements are recognized by the keyword they
// start with. Many are trivial to parse, some require a bit of
// complexity.
switch (starttype) {
case types._break: case types._continue: return this.parseBreakContinueStatement(node
, starttype.keyword)
case types._debugger: return this.parseDebuggerStatement(node)
case types._do: return this.parseDoStatement(node)
case types._for: return this.parseForStatement(node)
case types._function:
// Function as sole body of either an if statement or a labeled statement
// works, but not when it is part of a labeled statement that is the sole
// body of an if statement.
...function(node, isStatement) {
this.next();
// ecma-262 14.6 Class Definitions
// A class definition is always strict mode code.
var oldStrict = this.strict;
this.strict = true;
this.parseClassId(node, isStatement);
this.parseClassSuper(node);
var classBody = this.startNode();
var hadConstructor = false;
classBody.body = [];
this.expect(types.braceL);
while (!this.eat(types.braceR)) {
var element = this.parseClassElement(node.superClass !== null);
if (element) {
classBody.body.push(element);
if (element.type === "MethodDefinition" && element.kind === "constructor") {
if (hadConstructor) { this.raise(element.start, "Duplicate constructor in the same class"); }
hadConstructor = true;
}
}
}
node.body = this.finishNode(classBody, "ClassBody");
this.strict = oldStrict;
return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
}...
// Function as sole body of either an if statement or a labeled statement
// works, but not when it is part of a labeled statement that is the sole
// body of an if statement.
if ((context && (this.strict || context !== "if" && context !== "label")) && this.
options.ecmaVersion >= 6) { this.unexpected(); }
return this.parseFunctionStatement(node, false, !context)
case types._class:
if (context) { this.unexpected(); }
return this.parseClass(node, true)
case types._if: return this.parseIfStatement(node)
case types._return: return this.parseReturnStatement(node)
case types._switch: return this.parseSwitchStatement(node)
case types._throw: return this.parseThrowStatement(node)
case types._try: return this.parseTryStatement(node)
case types._const: case types._var:
kind = kind || this.value;
...function(constructorAllowsSuper) {
var this$1 = this;
if (this.eat(types.semi)) { return null }
var method = this.startNode();
var tryContextual = function (k, noLineBreak) {
if ( noLineBreak === void 0 ) noLineBreak = false;
var start = this$1.start, startLoc = this$1.startLoc;
if (!this$1.eatContextual(k)) { return false }
if (this$1.type !== types.parenL && (!noLineBreak || !this$1.canInsertSemicolon())) { return true }
if (method.key) { this$1.unexpected(); }
method.computed = false;
method.key = this$1.startNodeAt(start, startLoc);
method.key.name = k;
this$1.finishNode(method.key, "Identifier");
return false
};
method.kind = "method";
method.static = tryContextual("static");
var isGenerator = this.eat(types.star);
var isAsync = false;
if (!isGenerator) {
if (this.options.ecmaVersion >= 8 && tryContextual("async", true)) {
isAsync = true;
isGenerator = this.options.ecmaVersion >= 9 && this.eat(types.star);
} else if (tryContextual("get")) {
method.kind = "get";
} else if (tryContextual("set")) {
method.kind = "set";
}
}
if (!method.key) { this.parsePropertyName(method); }
var key = method.key;
var allowsDirectSuper = false;
if (!method.computed && !method.static && (key.type === "Identifier" && key.name === "constructor" ||
key.type === "Literal" && key.value === "constructor")) {
if (method.kind !== "method") { this.raise(key.start, "Constructor can't have get/set modifier"); }
if (isGenerator) { this.raise(key.start, "Constructor can't be a generator"); }
if (isAsync) { this.raise(key.start, "Constructor can't be an async method"); }
method.kind = "constructor";
allowsDirectSuper = constructorAllowsSuper;
} else if (method.static && key.type === "Identifier" && key.name === "prototype") {
this.raise(key.start, "Classes may not have a static property named prototype");
}
this.parseClassMethod(method, isGenerator, isAsync, allowsDirectSuper);
if (method.kind === "get" && method.value.params.length !== 0)
{ this.raiseRecoverable(method.value.start, "getter should have no params"); }
if (method.kind === "set" && method.value.params.length !== 1)
{ this.raiseRecoverable(method.value.start, "setter should have exactly one param"); }
if (method.kind === "set" && method.value.params[0].type === "RestElement")
{ this.raiseRecoverable(method.value.params[0].start, "Setter cannot use rest params"); }
return method
}...
this.parseClassId(node, isStatement);
this.parseClassSuper(node);
var classBody = this.startNode();
var hadConstructor = false;
classBody.body = [];
this.expect(types.braceL);
while (!this.eat(types.braceR)) {
var element = this.parseClassElement(node.superClass !== null);
if (element) {
classBody.body.push(element);
if (element.type === "MethodDefinition" && element.kind === "constructor") {
if (hadConstructor) { this.raise(element.start, "Duplicate constructor in the same class"); }
hadConstructor = true;
}
}
...function(node, isStatement) {
if (this.type === types.name) {
node.id = this.parseIdent();
if (isStatement)
{ this.checkLVal(node.id, BIND_LEXICAL, false); }
} else {
if (isStatement === true)
{ this.unexpected(); }
node.id = null;
}
}...
this.next();
// ecma-262 14.6 Class Definitions
// A class definition is always strict mode code.
var oldStrict = this.strict;
this.strict = true;
this.parseClassId(node, isStatement);
this.parseClassSuper(node);
var classBody = this.startNode();
var hadConstructor = false;
classBody.body = [];
this.expect(types.braceL);
while (!this.eat(types.braceR)) {
var element = this.parseClassElement(node.superClass !== null);
...function(method, isGenerator, isAsync, allowsDirectSuper) {
method.value = this.parseMethod(isGenerator, isAsync, allowsDirectSuper);
return this.finishNode(method, "MethodDefinition")
}...
if (isGenerator) { this.raise(key.start, "Constructor can't be a generator"); }
if (isAsync) { this.raise(key.start, "Constructor can't be an async method"); }
method.kind = "constructor";
allowsDirectSuper = constructorAllowsSuper;
} else if (method.static && key.type === "Identifier" && key.name === "prototype") {
this.raise(key.start, "Classes may not have a static property named prototype");
}
this.parseClassMethod(method, isGenerator, isAsync, allowsDirectSuper);
if (method.kind === "get" && method.value.params.length !== 0)
{ this.raiseRecoverable(method.value.start, "getter should have no params"); }
if (method.kind === "set" && method.value.params.length !== 1)
{ this.raiseRecoverable(method.value.start, "setter should have exactly one param"); }
if (method.kind === "set" && method.value.params[0].type === "RestElement")
{ this.raiseRecoverable(method.value.params[0].start, "Setter cannot use rest params"); }
return method
...function(node) {
node.superClass = this.eat(types._extends) ? this.parseExprSubscripts() : null;
}...
// ecma-262 14.6 Class Definitions
// A class definition is always strict mode code.
var oldStrict = this.strict;
this.strict = true;
this.parseClassId(node, isStatement);
this.parseClassSuper(node);
var classBody = this.startNode();
var hadConstructor = false;
classBody.body = [];
this.expect(types.braceL);
while (!this.eat(types.braceR)) {
var element = this.parseClassElement(node.superClass !== null);
if (element) {
...function(node) {
this.next();
this.semicolon();
return this.finishNode(node, "DebuggerStatement")
}...
// Most types of statements are recognized by the keyword they
// start with. Many are trivial to parse, some require a bit of
// complexity.
switch (starttype) {
case types._break: case types._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
case types._debugger: return this.parseDebuggerStatement(node)
case types._do: return this.parseDoStatement(node)
case types._for: return this.parseForStatement(node)
case types._function:
// Function as sole body of either an if statement or a labeled statement
// works, but not when it is part of a labeled statement that is the sole
// body of an if statement.
if ((context && (this.strict || context !== "if" && context !== "label")) && this.
options.ecmaVersion >= 6) { this.unexpected(); }
...function(node) {
this.next();
this.labels.push(loopLabel);
node.body = this.parseStatement("do");
this.labels.pop();
this.expect(types._while);
node.test = this.parseParenExpression();
if (this.options.ecmaVersion >= 6)
{ this.eat(types.semi); }
else
{ this.semicolon(); }
return this.finishNode(node, "DoWhileStatement")
}...
// Most types of statements are recognized by the keyword they
// start with. Many are trivial to parse, some require a bit of
// complexity.
switch (starttype) {
case types._break: case types._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
case types._debugger: return this.parseDebuggerStatement(node)
case types._do: return this.parseDoStatement(node)
case types._for: return this.parseForStatement(node)
case types._function:
// Function as sole body of either an if statement or a labeled statement
// works, but not when it is part of a labeled statement that is the sole
// body of an if statement.
if ((context && (this.strict || context !== "if" && context !== "label")) && this.
options.ecmaVersion >= 6) { this.unexpected(); }
return this.parseFunctionStatement(node, false, !context)
...function() {
var node = this.startNode();
this.next();
if (this.type !== types.parenL) {
this.unexpected();
}
return this.finishNode(node, "Import")
}...
return this.parseNew()
case types.backQuote:
return this.parseTemplate()
case types._import:
if (this.options.ecmaVersion > 10) {
return this.parseDynamicImport()
} else {
return this.unexpected()
}
default:
this.unexpected();
}
...function(node) {
this.next();
return this.finishNode(node, "EmptyStatement")
}...
case types._const: case types._var:
kind = kind || this.value;
if (context && kind !== "var") { this.unexpected(); }
return this.parseVarStatement(node, kind)
case types._while: return this.parseWhileStatement(node)
case types._with: return this.parseWithStatement(node)
case types.braceL: return this.parseBlock(true, node)
case types.semi: return this.parseEmptyStatement(node)
case types._export:
case types._import:
if (this.options.ecmaVersion > 10 && starttype === types._import) {
skipWhiteSpace.lastIndex = this.pos;
var skip = skipWhiteSpace.exec(this.input);
var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);
if (nextCh === 40) // '('
...function(node, exports) {
this.next();
// export * from '...'
if (this.eat(types.star)) {
this.expectContextual("from");
if (this.type !== types.string) { this.unexpected(); }
node.source = this.parseExprAtom();
this.semicolon();
return this.finishNode(node, "ExportAllDeclaration")
}
if (this.eat(types._default)) { // export default ...
this.checkExport(exports, "default", this.lastTokStart);
var isAsync;
if (this.type === types._function || (isAsync = this.isAsyncFunction())) {
var fNode = this.startNode();
this.next();
if (isAsync) { this.next(); }
node.declaration = this.parseFunction(fNode, FUNC_STATEMENT | FUNC_NULLABLE_ID, false, isAsync);
} else if (this.type === types._class) {
var cNode = this.startNode();
node.declaration = this.parseClass(cNode, "nullableID");
} else {
node.declaration = this.parseMaybeAssign();
this.semicolon();
}
return this.finishNode(node, "ExportDefaultDeclaration")
}
// export var|const|let|function|class ...
if (this.shouldParseExportStatement()) {
node.declaration = this.parseStatement(null);
if (node.declaration.type === "VariableDeclaration")
{ this.checkVariableExport(exports, node.declaration.declarations); }
else
{ this.checkExport(exports, node.declaration.id.name, node.declaration.id.start); }
node.specifiers = [];
node.source = null;
} else { // export { x, y as z } [from '...']
node.declaration = null;
node.specifiers = this.parseExportSpecifiers(exports);
if (this.eatContextual("from")) {
if (this.type !== types.string) { this.unexpected(); }
node.source = this.parseExprAtom();
} else {
for (var i = 0, list = node.specifiers; i < list.length; i += 1) {
// check for keywords used as local names
var spec = list[i];
this.checkUnreserved(spec.local);
// check if export is defined
this.checkLocalExport(spec.local);
}
node.source = null;
}
this.semicolon();
}
return this.finishNode(node, "ExportNamedDeclaration")
}...
if (!this.options.allowImportExportEverywhere) {
if (!topLevel)
{ this.raise(this.start, "'import' and 'export' may only appear at the top level"); }
if (!this.inModule)
{ this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module&apos
;"); }
}
return starttype === types._import ? this.parseImport(node) : this.parseExport(node
, exports)
// If the statement does not start with a statement keyword or a
// brace, it's an ExpressionStatement or LabeledStatement. We
// simply start parsing an expression, and afterwards, if the
// next token is a colon and the expression was a simple
// Identifier node, we switch to interpreting it as a label.
default:
...function(exports) {
var nodes = [], first = true;
// export { x, y as z } [from '...']
this.expect(types.braceL);
while (!this.eat(types.braceR)) {
if (!first) {
this.expect(types.comma);
if (this.afterTrailingComma(types.braceR)) { break }
} else { first = false; }
var node = this.startNode();
node.local = this.parseIdent(true);
node.exported = this.eatContextual("as") ? this.parseIdent(true) : node.local;
this.checkExport(exports, node.exported.name, node.exported.start);
nodes.push(this.finishNode(node, "ExportSpecifier"));
}
return nodes
}...
{ this.checkVariableExport(exports, node.declaration.declarations); }
else
{ this.checkExport(exports, node.declaration.id.name, node.declaration.id.start); }
node.specifiers = [];
node.source = null;
} else { // export { x, y as z } [from '...']
node.declaration = null;
node.specifiers = this.parseExportSpecifiers(exports);
if (this.eatContextual("from")) {
if (this.type !== types.string) { this.unexpected(); }
node.source = this.parseExprAtom();
} else {
for (var i = 0, list = node.specifiers; i < list.length; i += 1) {
// check for keywords used as local names
var spec = list[i];
...function(refDestructuringErrors) {
// If a division operator appears in an expression position, the
// tokenizer got confused, and we force it to read a regexp instead.
if (this.type === types.slash) { this.readRegexp(); }
var node, canBeArrow = this.potentialArrowAt === this.start;
switch (this.type) {
case types._super:
if (!this.allowSuper)
{ this.raise(this.start, "'super' keyword outside a method"); }
node = this.startNode();
this.next();
if (this.type === types.parenL && !this.allowDirectSuper)
{ this.raise(node.start, "super() call outside constructor of a subclass"); }
// The `super` keyword can appear at below:
// SuperProperty:
// super [ Expression ]
// super . IdentifierName
// SuperCall:
// super Arguments
if (this.type !== types.dot && this.type !== types.bracketL && this.type !== types.parenL)
{ this.unexpected(); }
return this.finishNode(node, "Super")
case types._this:
node = this.startNode();
this.next();
return this.finishNode(node, "ThisExpression")
case types.name:
var startPos = this.start, startLoc = this.startLoc, containsEsc = this.containsEsc;
var id = this.parseIdent(false);
if (this.options.ecmaVersion >= 8 && !containsEsc && id.name === "async" && !this.canInsertSemicolon() && this.eat(types._function
))
{ return this.parseFunction(this.startNodeAt(startPos, startLoc), 0, false, true) }
if (canBeArrow && !this.canInsertSemicolon()) {
if (this.eat(types.arrow))
{ return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false) }
if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === types.name && !containsEsc) {
id = this.parseIdent(false);
if (this.canInsertSemicolon() || !this.eat(types.arrow))
{ this.unexpected(); }
return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true)
}
}
return id
case types.regexp:
var value = this.value;
node = this.parseLiteral(value.value);
node.regex = {pattern: value.pattern, flags: value.flags};
return node
case types.num: case types.string:
return this.parseLiteral(this.value)
case types._null: case types._true: case types._false:
node = this.startNode();
node.value = this.type === types._null ? null : this.type === types._true;
node.raw = this.type.keyword;
this.next();
return this.finishNode(node, "Literal")
case types.parenL:
var start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow);
if (refDestructuringErrors) {
if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr))
{ refDestructuringErrors.parenthesizedAssign = start; }
if (refDestructuringErrors.parenthesizedBind < 0)
{ refDestructuringErrors.parenthesizedBind = start; }
}
return expr
case types.bracketL:
node = this.startNode();
this.next();
node.elements = this.parseExprList(types.bracketR, true, true, refDestructuringErrors);
return this.finishNode(node, "ArrayExpression")
case types.braceL:
return this.parseObj(false, refDestructuringErrors)
case types._function:
node = this.startNode();
this.next();
return this.parseFunction(node, 0)
case types._class:
return this.parseClass(this.startNode(), false)
case types._new:
return this.parseNew()
case types.backQuote:
return this.parseTemplate()
case types._import:
if (this.options.ecmaVersion > 10) {
return this.parseDynamicImport()
} else {
return this.unexpected()
}
default:
this.unexpected();
}
}...
pp$1.parseExport = function(node, exports) {
this.next();
// export * from '...'
if (this.eat(types.star)) {
this.expectContextual("from");
if (this.type !== types.string) { this.unexpected(); }
node.source = this.parseExprAtom();
this.semicolon();
return this.finishNode(node, "ExportAllDeclaration")
}
if (this.eat(types._default)) { // export default ...
this.checkExport(exports, "default", this.lastTokStart);
var isAsync;
if (this.type === types._function || (isAsync = this.isAsyncFunction())) {
...function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) {
var elts = [], first = true;
while (!this.eat(close)) {
if (!first) {
this.expect(types.comma);
if (allowTrailingComma && this.afterTrailingComma(close)) { break }
} else { first = false; }
var elt = (void 0);
if (allowEmpty && this.type === types.comma)
{ elt = null; }
else if (this.type === types.ellipsis) {
elt = this.parseSpread(refDestructuringErrors);
if (refDestructuringErrors && this.type === types.comma && refDestructuringErrors.trailingComma < 0)
{ refDestructuringErrors.trailingComma = this.start; }
} else {
elt = this.parseMaybeAssign(false, refDestructuringErrors);
}
elts.push(elt);
}
return elts
}...
if (computed) { this.expect(types.bracketR); }
base = this.finishNode(node, "MemberExpression");
} else if (!noCalls && this.eat(types.parenL)) {
var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos
= this.awaitIdentPos;
this.yieldPos = 0;
this.awaitPos = 0;
this.awaitIdentPos = 0;
var exprList = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8 &
;& base.type !== "Import", false, refDestructuringErrors);
if (maybeAsyncArrow && !this.canInsertSemicolon() && this.eat(types.arrow)) {
this.checkPatternErrors(refDestructuringErrors, false);
this.checkYieldAwaitInDefaultParams();
if (this.awaitIdentPos > 0)
{ this.raise(this.awaitIdentPos, "Cannot use 'await' as identifier inside an async function"); }
this.yieldPos = oldYieldPos;
this.awaitPos = oldAwaitPos;
...function(left, leftStartPos, leftStartLoc, minPrec, noIn) {
var prec = this.type.binop;
if (prec != null && (!noIn || this.type !== types._in)) {
if (prec > minPrec) {
var logical = this.type === types.logicalOR || this.type === types.logicalAND;
var op = this.value;
this.next();
var startPos = this.start, startLoc = this.startLoc;
var right = this.parseExprOp(this.parseMaybeUnary(null, false), startPos, startLoc, prec, noIn);
var node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical);
return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, noIn)
}
}
return left
}...
// Start the precedence parser.
pp$3.parseExprOps = function(noIn, refDestructuringErrors) {
var startPos = this.start, startLoc = this.startLoc;
var expr = this.parseMaybeUnary(refDestructuringErrors, false);
if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
return expr.start === startPos && expr.type === "ArrowFunctionExpression" ? expr : this.parseExprOp(expr, startPos, startLoc, -1, noIn)
};
// Parse binary operators with the operator precedence parsing
// algorithm. `left` is the left-hand side of the operator.
// `minPrec` provides context that allows the function to stop and
// defer further parser to one of its callers when it encounters an
// operator that has a lower precedence than the set it is parsing.
...function(noIn, refDestructuringErrors) {
var startPos = this.start, startLoc = this.startLoc;
var expr = this.parseMaybeUnary(refDestructuringErrors, false);
if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
return expr.start === startPos && expr.type === "ArrowFunctionExpression" ? expr : this.parseExprOp(expr, startPos, startLoc, -
1, noIn)
}...
return left
};
// Parse a ternary conditional (`?:`) operator.
pp$3.parseMaybeConditional = function(noIn, refDestructuringErrors) {
var startPos = this.start, startLoc = this.startLoc;
var expr = this.parseExprOps(noIn, refDestructuringErrors);
if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
if (this.eat(types.question)) {
var node = this.startNodeAt(startPos, startLoc);
node.test = expr;
node.consequent = this.parseMaybeAssign();
this.expect(types.colon);
node.alternate = this.parseMaybeAssign(noIn);
...function(refDestructuringErrors) {
var startPos = this.start, startLoc = this.startLoc;
var expr = this.parseExprAtom(refDestructuringErrors);
var skipArrowSubscripts = expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")";
if (this.checkExpressionErrors(refDestructuringErrors) || skipArrowSubscripts) { return expr }
var result = this.parseSubscripts(expr, startPos, startLoc);
if (refDestructuringErrors && result.type === "MemberExpression") {
if (refDestructuringErrors.parenthesizedAssign >= result.start) { refDestructuringErrors.parenthesizedAssign = -1; }
if (refDestructuringErrors.parenthesizedBind >= result.start) { refDestructuringErrors.parenthesizedBind = -1; }
}
return result
}...
if (isStatement === true)
{ this.unexpected(); }
node.id = null;
}
};
pp$1.parseClassSuper = function(node) {
node.superClass = this.eat(types._extends) ? this.parseExprSubscripts() : null;
};
// Parses module export declaration.
pp$1.parseExport = function(node, exports) {
this.next();
// export * from '...'
...function(noIn, refDestructuringErrors) {
var startPos = this.start, startLoc = this.startLoc;
var expr = this.parseMaybeAssign(noIn, refDestructuringErrors);
if (this.type === types.comma) {
var node = this.startNodeAt(startPos, startLoc);
node.expressions = [expr];
while (this.eat(types.comma)) { node.expressions.push(this.parseMaybeAssign(noIn, refDestructuringErrors)); }
return this.finishNode(node, "SequenceExpression")
}
return expr
}...
Parser.parse = function parse (input, options) {
return new this(options, input).parse()
};
Parser.parseExpressionAt = function parseExpressionAt (input, pos, options) {
var parser = new this(options, input, pos);
parser.nextToken();
return parser.parseExpression()
};
Parser.tokenizer = function tokenizer (input, options) {
return new this(options, input)
};
Object.defineProperties( Parser.prototype, prototypeAccessors );
...function(node, expr) {
node.expression = expr;
this.semicolon();
return this.finishNode(node, "ExpressionStatement")
}...
case types._export:
case types._import:
if (this.options.ecmaVersion > 10 && starttype === types._import) {
skipWhiteSpace.lastIndex = this.pos;
var skip = skipWhiteSpace.exec(this.input);
var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);
if (nextCh === 40) // '('
{ return this.parseExpressionStatement(node, this.parseExpression()) }
}
if (!this.options.allowImportExportEverywhere) {
if (!topLevel)
{ this.raise(this.start, "'import' and 'export' may only appear at the top level"); }
if (!this.inModule)
{ this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'&
quot;); }
...function(node, init) {
node.init = init;
this.expect(types.semi);
node.test = this.type === types.semi ? null : this.parseExpression();
this.expect(types.semi);
node.update = this.type === types.parenR ? null : this.parseExpression();
this.expect(types.parenR);
node.body = this.parseStatement("for");
this.exitScope();
this.labels.pop();
return this.finishNode(node, "ForStatement")
}...
this.next();
var awaitAt = (this.options.ecmaVersion >= 9 && (this.inAsync || (!this.inFunction && this.options.allowAwaitOutsideFunction
)) && this.eatContextual("await")) ? this.lastTokStart : -1;
this.labels.push(loopLabel);
this.enterScope(0);
this.expect(types.parenL);
if (this.type === types.semi) {
if (awaitAt > -1) { this.unexpected(awaitAt); }
return this.parseFor(node, null)
}
var isLet = this.isLet();
if (this.type === types._var || this.type === types._const || isLet) {
var init$1 = this.startNode(), kind = isLet ? "let" : this.value;
this.next();
this.parseVar(init$1, true, kind);
this.finishNode(init$1, "VariableDeclaration");
...function(node, init) {
var isForIn = this.type === types._in;
this.next();
if (
init.type === "VariableDeclaration" &&
init.declarations[0].init != null &&
(
!isForIn ||
this.options.ecmaVersion < 8 ||
this.strict ||
init.kind !== "var" ||
init.declarations[0].id.type !== "Identifier"
)
) {
this.raise(
init.start,
((isForIn ? "for-in" : "for-of") + " loop variable declaration may not have an initializer")
);
} else if (init.type === "AssignmentPattern") {
this.raise(init.start, "Invalid left-hand side in for-loop");
}
node.left = init;
node.right = isForIn ? this.parseExpression() : this.parseMaybeAssign();
this.expect(types.parenR);
node.body = this.parseStatement("for");
this.exitScope();
this.labels.pop();
return this.finishNode(node, isForIn ? "ForInStatement" : "ForOfStatement")
}...
this.finishNode(init$1, "VariableDeclaration");
if ((this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init
$1.declarations.length === 1) {
if (this.options.ecmaVersion >= 9) {
if (this.type === types._in) {
if (awaitAt > -1) { this.unexpected(awaitAt); }
} else { node.await = awaitAt > -1; }
}
return this.parseForIn(node, init$1)
}
if (awaitAt > -1) { this.unexpected(awaitAt); }
return this.parseFor(node, init$1)
}
var refDestructuringErrors = new DestructuringErrors;
var init = this.parseExpression(true, refDestructuringErrors);
if (this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
...function(node) {
this.next();
var awaitAt = (this.options.ecmaVersion >= 9 && (this.inAsync || (!this.inFunction && this.options.allowAwaitOutsideFunction)) &&
this.eatContextual("await")) ? this.lastTokStart : -1;
this.labels.push(loopLabel);
this.enterScope(0);
this.expect(types.parenL);
if (this.type === types.semi) {
if (awaitAt > -1) { this.unexpected(awaitAt); }
return this.parseFor(node, null)
}
var isLet = this.isLet();
if (this.type === types._var || this.type === types._const || isLet) {
var init$1 = this.startNode(), kind = isLet ? "let" : this.value;
this.next();
this.parseVar(init$1, true, kind);
this.finishNode(init$1, "VariableDeclaration");
if ((this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init$1.declarations.length ===
1) {
if (this.options.ecmaVersion >= 9) {
if (this.type === types._in) {
if (awaitAt > -1) { this.unexpected(awaitAt); }
} else { node.await = awaitAt > -1; }
}
return this.parseForIn(node, init$1)
}
if (awaitAt > -1) { this.unexpected(awaitAt); }
return this.parseFor(node, init$1)
}
var refDestructuringErrors = new DestructuringErrors;
var init = this.parseExpression(true, refDestructuringErrors);
if (this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
if (this.options.ecmaVersion >= 9) {
if (this.type === types._in) {
if (awaitAt > -1) { this.unexpected(awaitAt); }
} else { node.await = awaitAt > -1; }
}
this.toAssignable(init, false, refDestructuringErrors);
this.checkLVal(init);
return this.parseForIn(node, init)
} else {
this.checkExpressionErrors(refDestructuringErrors, true);
}
if (awaitAt > -1) { this.unexpected(awaitAt); }
return this.parseFor(node, init)
}...
// start with. Many are trivial to parse, some require a bit of
// complexity.
switch (starttype) {
case types._break: case types._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
case types._debugger: return this.parseDebuggerStatement(node)
case types._do: return this.parseDoStatement(node)
case types._for: return this.parseForStatement(node)
case types._function:
// Function as sole body of either an if statement or a labeled statement
// works, but not when it is part of a labeled statement that is the sole
// body of an if statement.
if ((context && (this.strict || context !== "if" && context !== "label")) && this.
options.ecmaVersion >= 6) { this.unexpected(); }
return this.parseFunctionStatement(node, false, !context)
case types._class:
...function(node, statement, allowExpressionBody, isAsync) {
this.initFunction(node);
if (this.options.ecmaVersion >= 9 || this.options.ecmaVersion >= 6 && !isAsync) {
if (this.type === types.star && (statement & FUNC_HANGING_STATEMENT))
{ this.unexpected(); }
node.generator = this.eat(types.star);
}
if (this.options.ecmaVersion >= 8)
{ node.async = !!isAsync; }
if (statement & FUNC_STATEMENT) {
node.id = (statement & FUNC_NULLABLE_ID) && this.type !== types.name ? null : this.parseIdent();
if (node.id && !(statement & FUNC_HANGING_STATEMENT))
// If it is a regular function declaration in sloppy mode, then it is
// subject to Annex B semantics (BIND_FUNCTION). Otherwise, the binding
// mode depends on properties of the current scope (see
// treatFunctionsAsVar).
{ this.checkLVal(node.id, (this.strict || node.generator || node.async) ? this.treatFunctionsAsVar ? BIND_VAR : BIND_LEXICAL
: BIND_FUNCTION); }
}
var oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;
this.yieldPos = 0;
this.awaitPos = 0;
this.awaitIdentPos = 0;
this.enterScope(functionFlags(node.async, node.generator));
if (!(statement & FUNC_STATEMENT))
{ node.id = this.type === types.name ? this.parseIdent() : null; }
this.parseFunctionParams(node);
this.parseFunctionBody(node, allowExpressionBody, false);
this.yieldPos = oldYieldPos;
this.awaitPos = oldAwaitPos;
this.awaitIdentPos = oldAwaitIdentPos;
return this.finishNode(node, (statement & FUNC_STATEMENT) ? "FunctionDeclaration" : "FunctionExpression")
}...
}
if (awaitAt > -1) { this.unexpected(awaitAt); }
return this.parseFor(node, init)
};
pp$1.parseFunctionStatement = function(node, isAsync, declarationPosition) {
this.next();
return this.parseFunction(node, FUNC_STATEMENT | (declarationPosition ? 0 : FUNC_HANGING_STATEMENT
), false, isAsync)
};
pp$1.parseIfStatement = function(node) {
this.next();
node.test = this.parseParenExpression();
// allow function declarations in branches, but only in non-strict mode
node.consequent = this.parseStatement("if");
...function(node, isArrowFunction, isMethod) {
var isExpression = isArrowFunction && this.type !== types.braceL;
var oldStrict = this.strict, useStrict = false;
if (isExpression) {
node.body = this.parseMaybeAssign();
node.expression = true;
this.checkParams(node, false);
} else {
var nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(node.params);
if (!oldStrict || nonSimple) {
useStrict = this.strictDirective(this.end);
// If this is a strict mode function, verify that argument names
// are not repeated, and it does not try to bind the words `eval`
// or `arguments`.
if (useStrict && nonSimple)
{ this.raiseRecoverable(node.start, "Illegal 'use strict' directive in function with non-simple parameter list"); }
}
// Start a new scope with regard to labels and the `inFunction`
// flag (restore them to their old value afterwards).
var oldLabels = this.labels;
this.labels = [];
if (useStrict) { this.strict = true; }
// Add the params to varDeclaredNames to ensure that an error is thrown
// if a let/const declaration in the function clashes with one of the params.
this.checkParams(node, !oldStrict && !useStrict && !isArrowFunction && !isMethod && this.isSimpleParamList(node.params));
node.body = this.parseBlock(false);
node.expression = false;
this.adaptDirectivePrologue(node.body.body);
this.labels = oldLabels;
}
this.exitScope();
// Ensure the function name isn't a forbidden identifier in strict mode, e.g. 'eval'
if (this.strict && node.id) { this.checkLVal(node.id, BIND_OUTSIDE); }
this.strict = oldStrict;
}...
this.awaitIdentPos = 0;
this.enterScope(functionFlags(node.async, node.generator));
if (!(statement & FUNC_STATEMENT))
{ node.id = this.type === types.name ? this.parseIdent() : null; }
this.parseFunctionParams(node);
this.parseFunctionBody(node, allowExpressionBody, false);
this.yieldPos = oldYieldPos;
this.awaitPos = oldAwaitPos;
this.awaitIdentPos = oldAwaitIdentPos;
return this.finishNode(node, (statement & FUNC_STATEMENT) ? "FunctionDeclaration" : "FunctionExpression"
;)
};
...function(node) {
this.expect(types.parenL);
node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
this.checkYieldAwaitInDefaultParams();
}...
this.awaitPos = 0;
this.awaitIdentPos = 0;
this.enterScope(functionFlags(node.async, node.generator));
if (!(statement & FUNC_STATEMENT))
{ node.id = this.type === types.name ? this.parseIdent() : null; }
this.parseFunctionParams(node);
this.parseFunctionBody(node, allowExpressionBody, false);
this.yieldPos = oldYieldPos;
this.awaitPos = oldAwaitPos;
this.awaitIdentPos = oldAwaitIdentPos;
return this.finishNode(node, (statement & FUNC_STATEMENT) ? "FunctionDeclaration" : "FunctionExpression"
;)
};
...function(node, isAsync, declarationPosition) {
this.next();
return this.parseFunction(node, FUNC_STATEMENT | (declarationPosition ? 0 : FUNC_HANGING_STATEMENT), false, isAsync)
}...
case types._do: return this.parseDoStatement(node)
case types._for: return this.parseForStatement(node)
case types._function:
// Function as sole body of either an if statement or a labeled statement
// works, but not when it is part of a labeled statement that is the sole
// body of an if statement.
if ((context && (this.strict || context !== "if" && context !== "label")) && this.
options.ecmaVersion >= 6) { this.unexpected(); }
return this.parseFunctionStatement(node, false, !context)
case types._class:
if (context) { this.unexpected(); }
return this.parseClass(node, true)
case types._if: return this.parseIfStatement(node)
case types._return: return this.parseReturnStatement(node)
case types._switch: return this.parseSwitchStatement(node)
case types._throw: return this.parseThrowStatement(node)
...function(liberal, isBinding) {
var node = this.startNode();
if (this.type === types.name) {
node.name = this.value;
} else if (this.type.keyword) {
node.name = this.type.keyword;
// To fix https://github.com/acornjs/acorn/issues/575
// `class` and `function` keywords push new context into this.context.
// But there is no chance to pop the context if the keyword is consumed as an identifier such as a property name.
// If the previous token is a dot, this does not apply because the context-managing code already ignored the keyword
if ((node.name === "class" || node.name === "function") &&
(this.lastTokEnd !== this.lastTokStart + 1 || this.input.charCodeAt(this.lastTokStart) !== 46)) {
this.context.pop();
}
} else {
this.unexpected();
}
this.next();
this.finishNode(node, "Identifier");
if (!liberal) {
this.checkUnreserved(node);
if (node.name === "await" && !this.awaitIdentPos)
{ this.awaitIdentPos = node.start; }
}
return node
}...
pp$1.parseBreakContinueStatement = function(node, keyword) {
var isBreak = keyword === "break";
this.next();
if (this.eat(types.semi) || this.insertSemicolon()) { node.label = null; }
else if (this.type !== types.name) { this.unexpected(); }
else {
node.label = this.parseIdent();
this.semicolon();
}
// Verify that there is an actual destination to break or
// continue to.
var i = 0;
for (; i < this.labels.length; ++i) {
...function(node) {
this.next();
node.test = this.parseParenExpression();
// allow function declarations in branches, but only in non-strict mode
node.consequent = this.parseStatement("if");
node.alternate = this.eat(types._else) ? this.parseStatement("if") : null;
return this.finishNode(node, "IfStatement")
}...
// works, but not when it is part of a labeled statement that is the sole
// body of an if statement.
if ((context && (this.strict || context !== "if" && context !== "label")) && this.
options.ecmaVersion >= 6) { this.unexpected(); }
return this.parseFunctionStatement(node, false, !context)
case types._class:
if (context) { this.unexpected(); }
return this.parseClass(node, true)
case types._if: return this.parseIfStatement(node)
case types._return: return this.parseReturnStatement(node)
case types._switch: return this.parseSwitchStatement(node)
case types._throw: return this.parseThrowStatement(node)
case types._try: return this.parseTryStatement(node)
case types._const: case types._var:
kind = kind || this.value;
if (context && kind !== "var") { this.unexpected(); }
...function(node) {
this.next();
// import '...'
if (this.type === types.string) {
node.specifiers = empty;
node.source = this.parseExprAtom();
} else {
node.specifiers = this.parseImportSpecifiers();
this.expectContextual("from");
node.source = this.type === types.string ? this.parseExprAtom() : this.unexpected();
}
this.semicolon();
return this.finishNode(node, "ImportDeclaration")
}...
if (!this.options.allowImportExportEverywhere) {
if (!topLevel)
{ this.raise(this.start, "'import' and 'export' may only appear at the top level"); }
if (!this.inModule)
{ this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module&apos
;"); }
}
return starttype === types._import ? this.parseImport(node) : this.parseExport(node
, exports)
// If the statement does not start with a statement keyword or a
// brace, it's an ExpressionStatement or LabeledStatement. We
// simply start parsing an expression, and afterwards, if the
// next token is a colon and the expression was a simple
// Identifier node, we switch to interpreting it as a label.
default:
...function() {
var nodes = [], first = true;
if (this.type === types.name) {
// import defaultObj, { x, y as z } from '...'
var node = this.startNode();
node.local = this.parseIdent();
this.checkLVal(node.local, BIND_LEXICAL);
nodes.push(this.finishNode(node, "ImportDefaultSpecifier"));
if (!this.eat(types.comma)) { return nodes }
}
if (this.type === types.star) {
var node$1 = this.startNode();
this.next();
this.expectContextual("as");
node$1.local = this.parseIdent();
this.checkLVal(node$1.local, BIND_LEXICAL);
nodes.push(this.finishNode(node$1, "ImportNamespaceSpecifier"));
return nodes
}
this.expect(types.braceL);
while (!this.eat(types.braceR)) {
if (!first) {
this.expect(types.comma);
if (this.afterTrailingComma(types.braceR)) { break }
} else { first = false; }
var node$2 = this.startNode();
node$2.imported = this.parseIdent(true);
if (this.eatContextual("as")) {
node$2.local = this.parseIdent();
} else {
this.checkUnreserved(node$2.imported);
node$2.local = node$2.imported;
}
this.checkLVal(node$2.local, BIND_LEXICAL);
nodes.push(this.finishNode(node$2, "ImportSpecifier"));
}
return nodes
}...
pp$1.parseImport = function(node) {
this.next();
// import '...'
if (this.type === types.string) {
node.specifiers = empty;
node.source = this.parseExprAtom();
} else {
node.specifiers = this.parseImportSpecifiers();
this.expectContextual("from");
node.source = this.type === types.string ? this.parseExprAtom() : this.unexpected();
}
this.semicolon();
return this.finishNode(node, "ImportDeclaration")
};
...function(node, maybeName, expr, context) {
for (var i$1 = 0, list = this.labels; i$1 < list.length; i$1 += 1)
{
var label = list[i$1];
if (label.name === maybeName)
{ this.raise(expr.start, "Label '" + maybeName + "' is already declared");
} }
var kind = this.type.isLoop ? "loop" : this.type === types._switch ? "switch" : null;
for (var i = this.labels.length - 1; i >= 0; i--) {
var label$1 = this.labels[i];
if (label$1.statementStart === node.start) {
// Update information about previous labels on this node
label$1.statementStart = this.start;
label$1.kind = kind;
} else { break }
}
this.labels.push({name: maybeName, kind: kind, statementStart: this.start});
node.body = this.parseStatement(context ? context.indexOf("label") === -1 ? context + "label" : context : "label");
this.labels.pop();
node.label = expr;
return this.finishNode(node, "LabeledStatement")
}...
if (context) { this.unexpected(); }
this.next();
return this.parseFunctionStatement(node, true, !context)
}
var maybeName = this.value, expr = this.parseExpression();
if (starttype === types.name && expr.type === "Identifier" && this.eat(types.colon))
{ return this.parseLabeledStatement(node, maybeName, expr, context) }
else { return this.parseExpressionStatement(node, expr) }
}
};
pp$1.parseBreakContinueStatement = function(node, keyword) {
var isBreak = keyword === "break";
this.next();
...function(value) {
var node = this.startNode();
node.value = value;
node.raw = this.input.slice(this.start, this.end);
if (node.raw.charCodeAt(node.raw.length - 1) === 110) { node.bigint = node.raw.slice(0, -1); }
this.next();
return this.finishNode(node, "Literal")
}...
return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true)
}
}
return id
case types.regexp:
var value = this.value;
node = this.parseLiteral(value.value);
node.regex = {pattern: value.pattern, flags: value.flags};
return node
case types.num: case types.string:
return this.parseLiteral(this.value)
case types._null: case types._true: case types._false:
...function(noIn, refDestructuringErrors, afterLeftParse) {
if (this.isContextual("yield")) {
if (this.inGenerator) { return this.parseYield(noIn) }
// The tokenizer will assume an expression is allowed after
// `yield`, but this isn't that kind of yield
else { this.exprAllowed = false; }
}
var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1, oldShorthandAssign = -1;
if (refDestructuringErrors) {
oldParenAssign = refDestructuringErrors.parenthesizedAssign;
oldTrailingComma = refDestructuringErrors.trailingComma;
oldShorthandAssign = refDestructuringErrors.shorthandAssign;
refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = refDestructuringErrors.shorthandAssign = -
1;
} else {
refDestructuringErrors = new DestructuringErrors;
ownDestructuringErrors = true;
}
var startPos = this.start, startLoc = this.startLoc;
if (this.type === types.parenL || this.type === types.name)
{ this.potentialArrowAt = this.start; }
var left = this.parseMaybeConditional(noIn, refDestructuringErrors);
if (afterLeftParse) { left = afterLeftParse.call(this, left, startPos, startLoc); }
if (this.type.isAssign) {
var node = this.startNodeAt(startPos, startLoc);
node.operator = this.value;
node.left = this.type === types.eq ? this.toAssignable(left, false, refDestructuringErrors) : left;
if (!ownDestructuringErrors) { DestructuringErrors.call(refDestructuringErrors); }
refDestructuringErrors.shorthandAssign = -1; // reset because shorthand default was used correctly
this.checkLVal(left);
this.next();
node.right = this.parseMaybeAssign(noIn);
return this.finishNode(node, "AssignmentExpression")
} else {
if (ownDestructuringErrors) { this.checkExpressionErrors(refDestructuringErrors, true); }
}
if (oldParenAssign > -1) { refDestructuringErrors.parenthesizedAssign = oldParenAssign; }
if (oldTrailingComma > -1) { refDestructuringErrors.trailingComma = oldTrailingComma; }
if (oldShorthandAssign > -1) { refDestructuringErrors.shorthandAssign = oldShorthandAssign; }
return left
}...
init.start,
((isForIn ? "for-in" : "for-of") + " loop variable declaration may not have an initializer")
);
} else if (init.type === "AssignmentPattern") {
this.raise(init.start, "Invalid left-hand side in for-loop");
}
node.left = init;
node.right = isForIn ? this.parseExpression() : this.parseMaybeAssign();
this.expect(types.parenR);
node.body = this.parseStatement("for");
this.exitScope();
this.labels.pop();
return this.finishNode(node, isForIn ? "ForInStatement" : "ForOfStatement")
};
...function(noIn, refDestructuringErrors) {
var startPos = this.start, startLoc = this.startLoc;
var expr = this.parseExprOps(noIn, refDestructuringErrors);
if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
if (this.eat(types.question)) {
var node = this.startNodeAt(startPos, startLoc);
node.test = expr;
node.consequent = this.parseMaybeAssign();
this.expect(types.colon);
node.alternate = this.parseMaybeAssign(noIn);
return this.finishNode(node, "ConditionalExpression")
}
return expr
}...
refDestructuringErrors = new DestructuringErrors;
ownDestructuringErrors = true;
}
var startPos = this.start, startLoc = this.startLoc;
if (this.type === types.parenL || this.type === types.name)
{ this.potentialArrowAt = this.start; }
var left = this.parseMaybeConditional(noIn, refDestructuringErrors);
if (afterLeftParse) { left = afterLeftParse.call(this, left, startPos, startLoc); }
if (this.type.isAssign) {
var node = this.startNodeAt(startPos, startLoc);
node.operator = this.value;
node.left = this.type === types.eq ? this.toAssignable(left, false, refDestructuringErrors) : left;
if (!ownDestructuringErrors) { DestructuringErrors.call(refDestructuringErrors); }
refDestructuringErrors.shorthandAssign = -1; // reset because shorthand default was used correctly
...function(startPos, startLoc, left) {
left = left || this.parseBindingAtom();
if (this.options.ecmaVersion < 6 || !this.eat(types.eq)) { return left }
var node = this.startNodeAt(startPos, startLoc);
node.left = left;
node.right = this.parseMaybeAssign();
return this.finishNode(node, "AssignmentPattern")
}...
var rest = this.parseRestBinding();
this.parseBindingListItem(rest);
elts.push(rest);
if (this.type === types.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
this.expect(close);
break
} else {
var elem = this.parseMaybeDefault(this.start, this.startLoc);
this.parseBindingListItem(elem);
elts.push(elem);
}
}
return elts
};
...function(refDestructuringErrors, sawUnary) {
var startPos = this.start, startLoc = this.startLoc, expr;
if (this.isContextual("await") && (this.inAsync || (!this.inFunction && this.options.allowAwaitOutsideFunction))) {
expr = this.parseAwait();
sawUnary = true;
} else if (this.type.prefix) {
var node = this.startNode(), update = this.type === types.incDec;
node.operator = this.value;
node.prefix = true;
this.next();
node.argument = this.parseMaybeUnary(null, true);
this.checkExpressionErrors(refDestructuringErrors, true);
if (update) { this.checkLVal(node.argument); }
else if (this.strict && node.operator === "delete" &&
node.argument.type === "Identifier")
{ this.raiseRecoverable(node.start, "Deleting local variable in strict mode"); }
else { sawUnary = true; }
expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
} else {
expr = this.parseExprSubscripts(refDestructuringErrors);
if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
while (this.type.postfix && !this.canInsertSemicolon()) {
var node$1 = this.startNodeAt(startPos, startLoc);
node$1.operator = this.value;
node$1.prefix = false;
node$1.argument = expr;
this.checkLVal(expr);
this.next();
expr = this.finishNode(node$1, "UpdateExpression");
}
}
if (!sawUnary && this.eat(types.starstar))
{ return this.buildBinary(startPos, startLoc, expr, this.parseMaybeUnary(null, false), "**", false) }
else
{ return expr }
}...
return expr
};
// Start the precedence parser.
pp$3.parseExprOps = function(noIn, refDestructuringErrors) {
var startPos = this.start, startLoc = this.startLoc;
var expr = this.parseMaybeUnary(refDestructuringErrors, false);
if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
return expr.start === startPos && expr.type === "ArrowFunctionExpression" ? expr : this.parseExprOp(expr, startPos
, startLoc, -1, noIn)
};
// Parse binary operators with the operator precedence parsing
// algorithm. `left` is the left-hand side of the operator.
// `minPrec` provides context that allows the function to stop and
...function(isGenerator, isAsync, allowDirectSuper) {
var node = this.startNode(), oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;
this.initFunction(node);
if (this.options.ecmaVersion >= 6)
{ node.generator = isGenerator; }
if (this.options.ecmaVersion >= 8)
{ node.async = !!isAsync; }
this.yieldPos = 0;
this.awaitPos = 0;
this.awaitIdentPos = 0;
this.enterScope(functionFlags(isAsync, node.generator) | SCOPE_SUPER | (allowDirectSuper ? SCOPE_DIRECT_SUPER : 0));
this.expect(types.parenL);
node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
this.checkYieldAwaitInDefaultParams();
this.parseFunctionBody(node, false, true);
this.yieldPos = oldYieldPos;
this.awaitPos = oldAwaitPos;
this.awaitIdentPos = oldAwaitIdentPos;
return this.finishNode(node, "FunctionExpression")
}...
{ this.raiseRecoverable(method.value.start, "setter should have exactly one param"); }
if (method.kind === "set" && method.value.params[0].type === "RestElement")
{ this.raiseRecoverable(method.value.params[0].start, "Setter cannot use rest params"); }
return method
};
pp$1.parseClassMethod = function(method, isGenerator, isAsync, allowsDirectSuper) {
method.value = this.parseMethod(isGenerator, isAsync, allowsDirectSuper);
return this.finishNode(method, "MethodDefinition")
};
pp$1.parseClassId = function(node, isStatement) {
if (this.type === types.name) {
node.id = this.parseIdent();
if (isStatement)
...function() {
var node = this.startNode();
var meta = this.parseIdent(true);
if (this.options.ecmaVersion >= 6 && this.eat(types.dot)) {
node.meta = meta;
var containsEsc = this.containsEsc;
node.property = this.parseIdent(true);
if (node.property.name !== "target" || containsEsc)
{ this.raiseRecoverable(node.property.start, "The only valid meta property for new is new.target"); }
if (!this.inNonArrowFunction())
{ this.raiseRecoverable(node.start, "new.target can only be used in functions"); }
return this.finishNode(node, "MetaProperty")
}
var startPos = this.start, startLoc = this.startLoc;
node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true);
if (this.options.ecmaVersion > 10 && node.callee.type === "Import") {
this.raise(node.callee.start, "Cannot use new with import(...)");
}
if (this.eat(types.parenL)) { node.arguments = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8 && node.callee.type
!== "Import", false); }
else { node.arguments = empty$1; }
return this.finishNode(node, "NewExpression")
}...
this.next();
return this.parseFunction(node, 0)
case types._class:
return this.parseClass(this.startNode(), false)
case types._new:
return this.parseNew()
case types.backQuote:
return this.parseTemplate()
case types._import:
if (this.options.ecmaVersion > 10) {
return this.parseDynamicImport()
...function(isPattern, refDestructuringErrors) {
var node = this.startNode(), first = true, propHash = {};
node.properties = [];
this.next();
while (!this.eat(types.braceR)) {
if (!first) {
this.expect(types.comma);
if (this.afterTrailingComma(types.braceR)) { break }
} else { first = false; }
var prop = this.parseProperty(isPattern, refDestructuringErrors);
if (!isPattern) { this.checkPropClash(prop, propHash, refDestructuringErrors); }
node.properties.push(prop);
}
return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression")
}...
case types.bracketL:
var node = this.startNode();
this.next();
node.elements = this.parseBindingList(types.bracketR, true, true);
return this.finishNode(node, "ArrayPattern")
case types.braceL:
return this.parseObj(true)
}
}
return this.parseIdent()
};
pp$2.parseBindingList = function(close, allowEmpty, allowTrailingComma) {
var elts = [], first = true;
...function(canBeArrow) {
var startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8;
if (this.options.ecmaVersion >= 6) {
this.next();
var innerStartPos = this.start, innerStartLoc = this.startLoc;
var exprList = [], first = true, lastIsComma = false;
var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, spreadStart;
this.yieldPos = 0;
this.awaitPos = 0;
// Do not save awaitIdentPos to allow checking awaits nested in parameters
while (this.type !== types.parenR) {
first ? first = false : this.expect(types.comma);
if (allowTrailingComma && this.afterTrailingComma(types.parenR, true)) {
lastIsComma = true;
break
} else if (this.type === types.ellipsis) {
spreadStart = this.start;
exprList.push(this.parseParenItem(this.parseRestBinding()));
if (this.type === types.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
break
} else {
exprList.push(this.parseMaybeAssign(false, refDestructuringErrors, this.parseParenItem));
}
}
var innerEndPos = this.start, innerEndLoc = this.startLoc;
this.expect(types.parenR);
if (canBeArrow && !this.canInsertSemicolon() && this.eat(types.arrow)) {
this.checkPatternErrors(refDestructuringErrors, false);
this.checkYieldAwaitInDefaultParams();
this.yieldPos = oldYieldPos;
this.awaitPos = oldAwaitPos;
return this.parseParenArrowList(startPos, startLoc, exprList)
}
if (!exprList.length || lastIsComma) { this.unexpected(this.lastTokStart); }
if (spreadStart) { this.unexpected(spreadStart); }
this.checkExpressionErrors(refDestructuringErrors, true);
this.yieldPos = oldYieldPos || this.yieldPos;
this.awaitPos = oldAwaitPos || this.awaitPos;
if (exprList.length > 1) {
val = this.startNodeAt(innerStartPos, innerStartLoc);
val.expressions = exprList;
this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc);
} else {
val = exprList[0];
}
} else {
val = this.parseParenExpression();
}
if (this.options.preserveParens) {
var par = this.startNodeAt(startPos, startLoc);
par.expression = val;
return this.finishNode(par, "ParenthesizedExpression")
} else {
return val
}
}...
node = this.startNode();
node.value = this.type === types._null ? null : this.type === types._true;
node.raw = this.type.keyword;
this.next();
return this.finishNode(node, "Literal")
case types.parenL:
var start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow);
if (refDestructuringErrors) {
if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr))
{ refDestructuringErrors.parenthesizedAssign = start; }
if (refDestructuringErrors.parenthesizedBind < 0)
{ refDestructuringErrors.parenthesizedBind = start; }
}
return expr
...function(startPos, startLoc, exprList) {
return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList)
}...
this.expect(types.parenR);
if (canBeArrow && !this.canInsertSemicolon() && this.eat(types.arrow)) {
this.checkPatternErrors(refDestructuringErrors, false);
this.checkYieldAwaitInDefaultParams();
this.yieldPos = oldYieldPos;
this.awaitPos = oldAwaitPos;
return this.parseParenArrowList(startPos, startLoc, exprList)
}
if (!exprList.length || lastIsComma) { this.unexpected(this.lastTokStart); }
if (spreadStart) { this.unexpected(spreadStart); }
this.checkExpressionErrors(refDestructuringErrors, true);
this.yieldPos = oldYieldPos || this.yieldPos;
this.awaitPos = oldAwaitPos || this.awaitPos;
...function() {
this.expect(types.parenL);
var val = this.parseExpression();
this.expect(types.parenR);
return val
}...
pp$1.parseDoStatement = function(node) {
this.next();
this.labels.push(loopLabel);
node.body = this.parseStatement("do");
this.labels.pop();
this.expect(types._while);
node.test = this.parseParenExpression();
if (this.options.ecmaVersion >= 6)
{ this.eat(types.semi); }
else
{ this.semicolon(); }
return this.finishNode(node, "DoWhileStatement")
};
...function(item) {
return item
}...
while (this.type !== types.parenR) {
first ? first = false : this.expect(types.comma);
if (allowTrailingComma && this.afterTrailingComma(types.parenR, true)) {
lastIsComma = true;
break
} else if (this.type === types.ellipsis) {
spreadStart = this.start;
exprList.push(this.parseParenItem(this.parseRestBinding()));
if (this.type === types.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
break
} else {
exprList.push(this.parseMaybeAssign(false, refDestructuringErrors, this.parseParenItem));
}
}
var innerEndPos = this.start, innerEndLoc = this.startLoc;
...function(isPattern, refDestructuringErrors) {
var prop = this.startNode(), isGenerator, isAsync, startPos, startLoc;
if (this.options.ecmaVersion >= 9 && this.eat(types.ellipsis)) {
if (isPattern) {
prop.argument = this.parseIdent(false);
if (this.type === types.comma) {
this.raise(this.start, "Comma is not permitted after the rest element");
}
return this.finishNode(prop, "RestElement")
}
// To disallow parenthesized identifier via `this.toAssignable()`.
if (this.type === types.parenL && refDestructuringErrors) {
if (refDestructuringErrors.parenthesizedAssign < 0) {
refDestructuringErrors.parenthesizedAssign = this.start;
}
if (refDestructuringErrors.parenthesizedBind < 0) {
refDestructuringErrors.parenthesizedBind = this.start;
}
}
// Parse argument.
prop.argument = this.parseMaybeAssign(false, refDestructuringErrors);
// To disallow trailing comma via `this.toAssignable()`.
if (this.type === types.comma && refDestructuringErrors && refDestructuringErrors.trailingComma < 0) {
refDestructuringErrors.trailingComma = this.start;
}
// Finish
return this.finishNode(prop, "SpreadElement")
}
if (this.options.ecmaVersion >= 6) {
prop.method = false;
prop.shorthand = false;
if (isPattern || refDestructuringErrors) {
startPos = this.start;
startLoc = this.startLoc;
}
if (!isPattern)
{ isGenerator = this.eat(types.star); }
}
var containsEsc = this.containsEsc;
this.parsePropertyName(prop);
if (!isPattern && !containsEsc && this.options.ecmaVersion >= 8 && !isGenerator && this.isAsyncProp(prop)) {
isAsync = true;
isGenerator = this.options.ecmaVersion >= 9 && this.eat(types.star);
this.parsePropertyName(prop, refDestructuringErrors);
} else {
isAsync = false;
}
this.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc);
return this.finishNode(prop, "Property")
}...
this.next();
while (!this.eat(types.braceR)) {
if (!first) {
this.expect(types.comma);
if (this.afterTrailingComma(types.braceR)) { break }
} else { first = false; }
var prop = this.parseProperty(isPattern, refDestructuringErrors);
if (!isPattern) { this.checkPropClash(prop, propHash, refDestructuringErrors); }
node.properties.push(prop);
}
return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression")
};
pp$3.parseProperty = function(isPattern, refDestructuringErrors) {
...function(prop) {
if (this.options.ecmaVersion >= 6) {
if (this.eat(types.bracketL)) {
prop.computed = true;
prop.key = this.parseMaybeAssign();
this.expect(types.bracketR);
return prop.key
} else {
prop.computed = false;
}
}
return prop.key = this.type === types.num || this.type === types.string ? this.parseExprAtom() : this.parseIdent(this.options.
allowReserved !== "never")
}...
isGenerator = this.options.ecmaVersion >= 9 && this.eat(types.star);
} else if (tryContextual("get")) {
method.kind = "get";
} else if (tryContextual("set")) {
method.kind = "set";
}
}
if (!method.key) { this.parsePropertyName(method); }
var key = method.key;
var allowsDirectSuper = false;
if (!method.computed && !method.static && (key.type === "Identifier" && key.name === "constructor
" ||
key.type === "Literal" && key.value === "constructor")) {
if (method.kind !== "method") { this.raise(key.start, "Constructor can't have get/set modifier"); }
if (isGenerator) { this.raise(key.start, "Constructor can't be a generator"); }
if (isAsync) { this.raise(key.start, "Constructor can't be an async method"); }
...function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc) {
if ((isGenerator || isAsync) && this.type === types.colon)
{ this.unexpected(); }
if (this.eat(types.colon)) {
prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors
);
prop.kind = "init";
} else if (this.options.ecmaVersion >= 6 && this.type === types.parenL) {
if (isPattern) { this.unexpected(); }
prop.kind = "init";
prop.method = true;
prop.value = this.parseMethod(isGenerator, isAsync);
} else if (!isPattern && !containsEsc &&
this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" &&
(prop.key.name === "get" || prop.key.name === "set") &&
(this.type !== types.comma && this.type !== types.braceR)) {
if (isGenerator || isAsync) { this.unexpected(); }
prop.kind = prop.key.name;
this.parsePropertyName(prop);
prop.value = this.parseMethod(false);
var paramCount = prop.kind === "get" ? 0 : 1;
if (prop.value.params.length !== paramCount) {
var start = prop.value.start;
if (prop.kind === "get")
{ this.raiseRecoverable(start, "getter should have no params"); }
else
{ this.raiseRecoverable(start, "setter should have exactly one param"); }
} else {
if (prop.kind === "set" && prop.value.params[0].type === "RestElement")
{ this.raiseRecoverable(prop.value.params[0].start, "Setter cannot use rest params"); }
}
} else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") {
if (isGenerator || isAsync) { this.unexpected(); }
this.checkUnreserved(prop.key);
if (prop.key.name === "await" && !this.awaitIdentPos)
{ this.awaitIdentPos = startPos; }
prop.kind = "init";
if (isPattern) {
prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
} else if (this.type === types.eq && refDestructuringErrors) {
if (refDestructuringErrors.shorthandAssign < 0)
{ refDestructuringErrors.shorthandAssign = this.start; }
prop.value = this.parseMaybeDefault(startPos, startLoc, prop.key);
} else {
prop.value = prop.key;
}
prop.shorthand = true;
} else { this.unexpected(); }
}...
if (!isPattern && !containsEsc && this.options.ecmaVersion >= 8 && !isGenerator && this.isAsyncProp
(prop)) {
isAsync = true;
isGenerator = this.options.ecmaVersion >= 9 && this.eat(types.star);
this.parsePropertyName(prop, refDestructuringErrors);
} else {
isAsync = false;
}
this.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc,
refDestructuringErrors, containsEsc);
return this.finishNode(prop, "Property")
};
pp$3.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc
) {
if ((isGenerator || isAsync) && this.type === types.colon)
{ this.unexpected(); }
...function() {
var node = this.startNode();
this.next();
// RestElement inside of a function parameter must be an identifier
if (this.options.ecmaVersion === 6 && this.type !== types.name)
{ this.unexpected(); }
node.argument = this.parseBindingAtom();
return this.finishNode(node, "RestElement")
}...
if (first) { first = false; }
else { this.expect(types.comma); }
if (allowEmpty && this.type === types.comma) {
elts.push(null);
} else if (allowTrailingComma && this.afterTrailingComma(close)) {
break
} else if (this.type === types.ellipsis) {
var rest = this.parseRestBinding();
this.parseBindingListItem(rest);
elts.push(rest);
if (this.type === types.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
this.expect(close);
break
} else {
var elem = this.parseMaybeDefault(this.start, this.startLoc);
...function(node) {
if (!this.inFunction && !this.options.allowReturnOutsideFunction)
{ this.raise(this.start, "'return' outside of function"); }
this.next();
// In `return` (and `break`/`continue`), the keywords with
// optional arguments, we eagerly look for a semicolon or the
// possibility to insert one.
if (this.eat(types.semi) || this.insertSemicolon()) { node.argument = null; }
else { node.argument = this.parseExpression(); this.semicolon(); }
return this.finishNode(node, "ReturnStatement")
}...
// body of an if statement.
if ((context && (this.strict || context !== "if" && context !== "label")) && this.
options.ecmaVersion >= 6) { this.unexpected(); }
return this.parseFunctionStatement(node, false, !context)
case types._class:
if (context) { this.unexpected(); }
return this.parseClass(node, true)
case types._if: return this.parseIfStatement(node)
case types._return: return this.parseReturnStatement(node)
case types._switch: return this.parseSwitchStatement(node)
case types._throw: return this.parseThrowStatement(node)
case types._try: return this.parseTryStatement(node)
case types._const: case types._var:
kind = kind || this.value;
if (context && kind !== "var") { this.unexpected(); }
return this.parseVarStatement(node, kind)
...function(refDestructuringErrors) {
var node = this.startNode();
this.next();
node.argument = this.parseMaybeAssign(false, refDestructuringErrors);
return this.finishNode(node, "SpreadElement")
}...
if (allowTrailingComma && this.afterTrailingComma(close)) { break }
} else { first = false; }
var elt = (void 0);
if (allowEmpty && this.type === types.comma)
{ elt = null; }
else if (this.type === types.ellipsis) {
elt = this.parseSpread(refDestructuringErrors);
if (refDestructuringErrors && this.type === types.comma && refDestructuringErrors.trailingComma < 0)
{ refDestructuringErrors.trailingComma = this.start; }
} else {
elt = this.parseMaybeAssign(false, refDestructuringErrors);
}
elts.push(elt);
}
...function(context, topLevel, exports) {
var starttype = this.type, node = this.startNode(), kind;
if (this.isLet(context)) {
starttype = types._var;
kind = "let";
}
// Most types of statements are recognized by the keyword they
// start with. Many are trivial to parse, some require a bit of
// complexity.
switch (starttype) {
case types._break: case types._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
case types._debugger: return this.parseDebuggerStatement(node)
case types._do: return this.parseDoStatement(node)
case types._for: return this.parseForStatement(node)
case types._function:
// Function as sole body of either an if statement or a labeled statement
// works, but not when it is part of a labeled statement that is the sole
// body of an if statement.
if ((context && (this.strict || context !== "if" && context !== "label")) && this.options.ecmaVersion >= 6) { this.unexpected
(); }
return this.parseFunctionStatement(node, false, !context)
case types._class:
if (context) { this.unexpected(); }
return this.parseClass(node, true)
case types._if: return this.parseIfStatement(node)
case types._return: return this.parseReturnStatement(node)
case types._switch: return this.parseSwitchStatement(node)
case types._throw: return this.parseThrowStatement(node)
case types._try: return this.parseTryStatement(node)
case types._const: case types._var:
kind = kind || this.value;
if (context && kind !== "var") { this.unexpected(); }
return this.parseVarStatement(node, kind)
case types._while: return this.parseWhileStatement(node)
case types._with: return this.parseWithStatement(node)
case types.braceL: return this.parseBlock(true, node)
case types.semi: return this.parseEmptyStatement(node)
case types._export:
case types._import:
if (this.options.ecmaVersion > 10 && starttype === types._import) {
skipWhiteSpace.lastIndex = this.pos;
var skip = skipWhiteSpace.exec(this.input);
var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);
if (nextCh === 40) // '('
{ return this.parseExpressionStatement(node, this.parseExpression()) }
}
if (!this.options.allowImportExportEverywhere) {
if (!topLevel)
{ this.raise(this.start, "'import' and 'export' may only appear at the top level"); }
if (!this.inModule)
{ this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'"); }
}
return starttype === types._import ? this.parseImport(node) : this.parseExport(node, exports)
// If the statement does not start with a statement keyword or a
// brace, it's an ExpressionStatement or LabeledStatement. We
// simply start parsing an expression, and afterwards, if the
// next token is a colon and the expression was a simple
// Identifier node, we switch to interpreting it as a label.
default:
if (this.isAsyncFunction()) {
if (context) { this.unexpected(); }
this.next();
return this.parseFunctionStatement(node, true, !context)
}
var maybeName = this.value, expr = this.parseExpression();
if (starttype === types.name && expr.type === "Identifier" && this.eat(types.colon))
{ return this.parseLabeledStatement(node, maybeName, expr, context) }
else { return this.parseExpressionStatement(node, expr) }
}
}...
// `program` argument. If present, the statements will be appended
// to its body instead of creating a new node.
pp$1.parseTopLevel = function(node) {
var exports = {};
if (!node.body) { node.body = []; }
while (this.type !== types.eof) {
var stmt = this.parseStatement(null, true, exports);
node.body.push(stmt);
}
if (this.inModule)
{ for (var i = 0, list = Object.keys(this.undefinedExports); i < list.length; i += 1)
{
var name = list[i];
...function(base, startPos, startLoc, noCalls, maybeAsyncArrow) {
var computed = this.eat(types.bracketL);
if (computed || this.eat(types.dot)) {
var node = this.startNodeAt(startPos, startLoc);
node.object = base;
node.property = computed ? this.parseExpression() : this.parseIdent(this.options.allowReserved !== "never");
node.computed = !!computed;
if (computed) { this.expect(types.bracketR); }
base = this.finishNode(node, "MemberExpression");
} else if (!noCalls && this.eat(types.parenL)) {
var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos
= this.awaitIdentPos;
this.yieldPos = 0;
this.awaitPos = 0;
this.awaitIdentPos = 0;
var exprList = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8 && base.type !== "Import", false, refDestructuringErrors
);
if (maybeAsyncArrow && !this.canInsertSemicolon() && this.eat(types.arrow)) {
this.checkPatternErrors(refDestructuringErrors, false);
this.checkYieldAwaitInDefaultParams();
if (this.awaitIdentPos > 0)
{ this.raise(this.awaitIdentPos, "Cannot use 'await' as identifier inside an async function"); }
this.yieldPos = oldYieldPos;
this.awaitPos = oldAwaitPos;
this.awaitIdentPos = oldAwaitIdentPos;
return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, true)
}
this.checkExpressionErrors(refDestructuringErrors, true);
this.yieldPos = oldYieldPos || this.yieldPos;
this.awaitPos = oldAwaitPos || this.awaitPos;
this.awaitIdentPos = oldAwaitIdentPos || this.awaitIdentPos;
var node$1 = this.startNodeAt(startPos, startLoc);
node$1.callee = base;
node$1.arguments = exprList;
if (node$1.callee.type === "Import") {
if (node$1.arguments.length !== 1) {
this.raise(node$1.start, "import() requires exactly one argument");
}
var importArg = node$1.arguments[0];
if (importArg && importArg.type === "SpreadElement") {
this.raise(importArg.start, "... is not allowed in import()");
}
}
base = this.finishNode(node$1, "CallExpression");
} else if (this.type === types.backQuote) {
var node$2 = this.startNodeAt(startPos, startLoc);
node$2.tag = base;
node$2.quasi = this.parseTemplate({isTagged: true});
base = this.finishNode(node$2, "TaggedTemplateExpression");
}
return base
}...
return result
};
pp$3.parseSubscripts = function(base, startPos, startLoc, noCalls) {
var maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === "Identifier" && base.name === &
quot;async" &&
this.lastTokEnd === base.end && !this.canInsertSemicolon() && this.input.slice(base.start, base.end) === &
quot;async";
while (true) {
var element = this.parseSubscript(base, startPos, startLoc, noCalls, maybeAsyncArrow
);
if (element === base || element.type === "ArrowFunctionExpression") { return element }
base = element;
}
};
pp$3.parseSubscript = function(base, startPos, startLoc, noCalls, maybeAsyncArrow) {
var computed = this.eat(types.bracketL);
...function(base, startPos, startLoc, noCalls) {
var maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === "Identifier" && base.name === "async" &&
this.lastTokEnd === base.end && !this.canInsertSemicolon() && this.input.slice(base.start, base.end) === "async";
while (true) {
var element = this.parseSubscript(base, startPos, startLoc, noCalls, maybeAsyncArrow);
if (element === base || element.type === "ArrowFunctionExpression") { return element }
base = element;
}
}...
// Parse call, dot, and `[]`-subscript expressions.
pp$3.parseExprSubscripts = function(refDestructuringErrors) {
var startPos = this.start, startLoc = this.startLoc;
var expr = this.parseExprAtom(refDestructuringErrors);
var skipArrowSubscripts = expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this
.lastTokEnd) !== ")";
if (this.checkExpressionErrors(refDestructuringErrors) || skipArrowSubscripts) { return expr }
var result = this.parseSubscripts(expr, startPos, startLoc);
if (refDestructuringErrors && result.type === "MemberExpression") {
if (refDestructuringErrors.parenthesizedAssign >= result.start) { refDestructuringErrors.parenthesizedAssign = -1; }
if (refDestructuringErrors.parenthesizedBind >= result.start) { refDestructuringErrors.parenthesizedBind = -1; }
}
return result
};
...function(node) {
this.next();
node.discriminant = this.parseParenExpression();
node.cases = [];
this.expect(types.braceL);
this.labels.push(switchLabel);
this.enterScope(0);
// Statements under must be grouped (by label) in SwitchCase
// nodes. `cur` is used to keep the node that we are currently
// adding statements to.
var cur;
for (var sawDefault = false; this.type !== types.braceR;) {
if (this.type === types._case || this.type === types._default) {
var isCase = this.type === types._case;
if (cur) { this.finishNode(cur, "SwitchCase"); }
node.cases.push(cur = this.startNode());
cur.consequent = [];
this.next();
if (isCase) {
cur.test = this.parseExpression();
} else {
if (sawDefault) { this.raiseRecoverable(this.lastTokStart, "Multiple default clauses"); }
sawDefault = true;
cur.test = null;
}
this.expect(types.colon);
} else {
if (!cur) { this.unexpected(); }
cur.consequent.push(this.parseStatement(null));
}
}
this.exitScope();
if (cur) { this.finishNode(cur, "SwitchCase"); }
this.next(); // Closing brace
this.labels.pop();
return this.finishNode(node, "SwitchStatement")
}...
if ((context && (this.strict || context !== "if" && context !== "label")) && this.
options.ecmaVersion >= 6) { this.unexpected(); }
return this.parseFunctionStatement(node, false, !context)
case types._class:
if (context) { this.unexpected(); }
return this.parseClass(node, true)
case types._if: return this.parseIfStatement(node)
case types._return: return this.parseReturnStatement(node)
case types._switch: return this.parseSwitchStatement(node)
case types._throw: return this.parseThrowStatement(node)
case types._try: return this.parseTryStatement(node)
case types._const: case types._var:
kind = kind || this.value;
if (context && kind !== "var") { this.unexpected(); }
return this.parseVarStatement(node, kind)
case types._while: return this.parseWhileStatement(node)
...function(ref) {
if ( ref === void 0 ) ref = {};
var isTagged = ref.isTagged; if ( isTagged === void 0 ) isTagged = false;
var node = this.startNode();
this.next();
node.expressions = [];
var curElt = this.parseTemplateElement({isTagged: isTagged});
node.quasis = [curElt];
while (!curElt.tail) {
if (this.type === types.eof) { this.raise(this.pos, "Unterminated template literal"); }
this.expect(types.dollarBraceL);
node.expressions.push(this.parseExpression());
this.expect(types.braceR);
node.quasis.push(curElt = this.parseTemplateElement({isTagged: isTagged}));
}
this.next();
return this.finishNode(node, "TemplateLiteral")
}...
this.raise(importArg.start, "... is not allowed in import()");
}
}
base = this.finishNode(node$1, "CallExpression");
} else if (this.type === types.backQuote) {
var node$2 = this.startNodeAt(startPos, startLoc);
node$2.tag = base;
node$2.quasi = this.parseTemplate({isTagged: true});
base = this.finishNode(node$2, "TaggedTemplateExpression");
}
return base
};
// Parse an atomic expression — either a single token that is an
// expression, an expression started by a keyword like `function` or
...function(ref) {
var isTagged = ref.isTagged;
var elem = this.startNode();
if (this.type === types.invalidTemplate) {
if (!isTagged) {
this.raiseRecoverable(this.start, "Bad escape sequence in untagged template literal");
}
elem.value = {
raw: this.value,
cooked: null
};
} else {
elem.value = {
raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, "\n"),
cooked: this.value
};
}
this.next();
elem.tail = this.type === types.backQuote;
return this.finishNode(elem, "TemplateElement")
}...
pp$3.parseTemplate = function(ref) {
if ( ref === void 0 ) ref = {};
var isTagged = ref.isTagged; if ( isTagged === void 0 ) isTagged = false;
var node = this.startNode();
this.next();
node.expressions = [];
var curElt = this.parseTemplateElement({isTagged: isTagged});
node.quasis = [curElt];
while (!curElt.tail) {
if (this.type === types.eof) { this.raise(this.pos, "Unterminated template literal"); }
this.expect(types.dollarBraceL);
node.expressions.push(this.parseExpression());
this.expect(types.braceR);
node.quasis.push(curElt = this.parseTemplateElement({isTagged: isTagged}));
...function(node) {
this.next();
if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start)))
{ this.raise(this.lastTokEnd, "Illegal newline after throw"); }
node.argument = this.parseExpression();
this.semicolon();
return this.finishNode(node, "ThrowStatement")
}...
return this.parseFunctionStatement(node, false, !context)
case types._class:
if (context) { this.unexpected(); }
return this.parseClass(node, true)
case types._if: return this.parseIfStatement(node)
case types._return: return this.parseReturnStatement(node)
case types._switch: return this.parseSwitchStatement(node)
case types._throw: return this.parseThrowStatement(node)
case types._try: return this.parseTryStatement(node)
case types._const: case types._var:
kind = kind || this.value;
if (context && kind !== "var") { this.unexpected(); }
return this.parseVarStatement(node, kind)
case types._while: return this.parseWhileStatement(node)
case types._with: return this.parseWithStatement(node)
...function(node) {
var exports = {};
if (!node.body) { node.body = []; }
while (this.type !== types.eof) {
var stmt = this.parseStatement(null, true, exports);
node.body.push(stmt);
}
if (this.inModule)
{ for (var i = 0, list = Object.keys(this.undefinedExports); i < list.length; i += 1)
{
var name = list[i];
this.raiseRecoverable(this.undefinedExports[name].start, ("Export '" + name + "' is not defined"));
} }
this.adaptDirectivePrologue(node.body);
this.next();
node.sourceType = this.options.sourceType;
return this.finishNode(node, "Program")
}...
};
var prototypeAccessors = { inFunction: { configurable: true },inGenerator: { configurable: true },inAsync: { configurable: true },
allowSuper: { configurable: true },allowDirectSuper: { configurable: true },treatFunctionsAsVar: { configurable: true } };
Parser.prototype.parse = function parse () {
var node = this.options.program || this.startNode();
this.nextToken();
return this.parseTopLevel(node)
};
prototypeAccessors.inFunction.get = function () { return (this.currentVarScope().flags & SCOPE_FUNCTION) > 0 };
prototypeAccessors.inGenerator.get = function () { return (this.currentVarScope().flags & SCOPE_GENERATOR) > 0 };
prototypeAccessors.inAsync.get = function () { return (this.currentVarScope().flags & SCOPE_ASYNC) > 0 };
prototypeAccessors.allowSuper.get = function () { return (this.currentThisScope().flags & SCOPE_SUPER) > 0 };
prototypeAccessors.allowDirectSuper.get = function () { return (this.currentThisScope().flags & SCOPE_DIRECT_SUPER) > 0 };
...function(node) {
this.next();
node.block = this.parseBlock();
node.handler = null;
if (this.type === types._catch) {
var clause = this.startNode();
this.next();
if (this.eat(types.parenL)) {
clause.param = this.parseBindingAtom();
var simple = clause.param.type === "Identifier";
this.enterScope(simple ? SCOPE_SIMPLE_CATCH : 0);
this.checkLVal(clause.param, simple ? BIND_SIMPLE_CATCH : BIND_LEXICAL);
this.expect(types.parenR);
} else {
if (this.options.ecmaVersion < 10) { this.unexpected(); }
clause.param = null;
this.enterScope(0);
}
clause.body = this.parseBlock(false);
this.exitScope();
node.handler = this.finishNode(clause, "CatchClause");
}
node.finalizer = this.eat(types._finally) ? this.parseBlock() : null;
if (!node.handler && !node.finalizer)
{ this.raise(node.start, "Missing catch or finally clause"); }
return this.finishNode(node, "TryStatement")
}...
case types._class:
if (context) { this.unexpected(); }
return this.parseClass(node, true)
case types._if: return this.parseIfStatement(node)
case types._return: return this.parseReturnStatement(node)
case types._switch: return this.parseSwitchStatement(node)
case types._throw: return this.parseThrowStatement(node)
case types._try: return this.parseTryStatement(node)
case types._const: case types._var:
kind = kind || this.value;
if (context && kind !== "var") { this.unexpected(); }
return this.parseVarStatement(node, kind)
case types._while: return this.parseWhileStatement(node)
case types._with: return this.parseWithStatement(node)
case types.braceL: return this.parseBlock(true, node)
...function(node, isFor, kind) {
node.declarations = [];
node.kind = kind;
for (;;) {
var decl = this.startNode();
this.parseVarId(decl, kind);
if (this.eat(types.eq)) {
decl.init = this.parseMaybeAssign(isFor);
} else if (kind === "const" && !(this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of")))) {
this.unexpected();
} else if (decl.id.type !== "Identifier" && !(isFor && (this.type === types._in || this.isContextual("of")))) {
this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value");
} else {
decl.init = null;
}
node.declarations.push(this.finishNode(decl, "VariableDeclarator"));
if (!this.eat(types.comma)) { break }
}
return node
}...
if (awaitAt > -1) { this.unexpected(awaitAt); }
return this.parseFor(node, null)
}
var isLet = this.isLet();
if (this.type === types._var || this.type === types._const || isLet) {
var init$1 = this.startNode(), kind = isLet ? "let" : this.value;
this.next();
this.parseVar(init$1, true, kind);
this.finishNode(init$1, "VariableDeclaration");
if ((this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init
$1.declarations.length === 1) {
if (this.options.ecmaVersion >= 9) {
if (this.type === types._in) {
if (awaitAt > -1) { this.unexpected(awaitAt); }
} else { node.await = awaitAt > -1; }
}
...function(decl, kind) {
decl.id = this.parseBindingAtom();
this.checkLVal(decl.id, kind === "var" ? BIND_VAR : BIND_LEXICAL, false);
}...
// Parse a list of variable declarations.
pp$1.parseVar = function(node, isFor, kind) {
node.declarations = [];
node.kind = kind;
for (;;) {
var decl = this.startNode();
this.parseVarId(decl, kind);
if (this.eat(types.eq)) {
decl.init = this.parseMaybeAssign(isFor);
} else if (kind === "const" && !(this.type === types._in || (this.options.ecmaVersion >= 6 && this
.isContextual("of")))) {
this.unexpected();
} else if (decl.id.type !== "Identifier" && !(isFor && (this.type === types._in || this.isContextual
("of")))) {
this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value");
} else {
...function(node, kind) {
this.next();
this.parseVar(node, false, kind);
this.semicolon();
return this.finishNode(node, "VariableDeclaration")
}...
case types._return: return this.parseReturnStatement(node)
case types._switch: return this.parseSwitchStatement(node)
case types._throw: return this.parseThrowStatement(node)
case types._try: return this.parseTryStatement(node)
case types._const: case types._var:
kind = kind || this.value;
if (context && kind !== "var") { this.unexpected(); }
return this.parseVarStatement(node, kind)
case types._while: return this.parseWhileStatement(node)
case types._with: return this.parseWithStatement(node)
case types.braceL: return this.parseBlock(true, node)
case types.semi: return this.parseEmptyStatement(node)
case types._export:
case types._import:
if (this.options.ecmaVersion > 10 && starttype === types._import) {
...function(node) {
this.next();
node.test = this.parseParenExpression();
this.labels.push(loopLabel);
node.body = this.parseStatement("while");
this.labels.pop();
return this.finishNode(node, "WhileStatement")
}...
case types._switch: return this.parseSwitchStatement(node)
case types._throw: return this.parseThrowStatement(node)
case types._try: return this.parseTryStatement(node)
case types._const: case types._var:
kind = kind || this.value;
if (context && kind !== "var") { this.unexpected(); }
return this.parseVarStatement(node, kind)
case types._while: return this.parseWhileStatement(node)
case types._with: return this.parseWithStatement(node)
case types.braceL: return this.parseBlock(true, node)
case types.semi: return this.parseEmptyStatement(node)
case types._export:
case types._import:
if (this.options.ecmaVersion > 10 && starttype === types._import) {
skipWhiteSpace.lastIndex = this.pos;
...function(node) {
if (this.strict) { this.raise(this.start, "'with' in strict mode"); }
this.next();
node.object = this.parseParenExpression();
node.body = this.parseStatement("with");
return this.finishNode(node, "WithStatement")
}...
case types._throw: return this.parseThrowStatement(node)
case types._try: return this.parseTryStatement(node)
case types._const: case types._var:
kind = kind || this.value;
if (context && kind !== "var") { this.unexpected(); }
return this.parseVarStatement(node, kind)
case types._while: return this.parseWhileStatement(node)
case types._with: return this.parseWithStatement(node)
case types.braceL: return this.parseBlock(true, node)
case types.semi: return this.parseEmptyStatement(node)
case types._export:
case types._import:
if (this.options.ecmaVersion > 10 && starttype === types._import) {
skipWhiteSpace.lastIndex = this.pos;
var skip = skipWhiteSpace.exec(this.input);
...function(noIn) {
if (!this.yieldPos) { this.yieldPos = this.start; }
var node = this.startNode();
this.next();
if (this.type === types.semi || this.canInsertSemicolon() || (this.type !== types.star && !this.type.startsExpr)) {
node.delegate = false;
node.argument = null;
} else {
node.delegate = this.eat(types.star);
node.argument = this.parseMaybeAssign(noIn);
}
return this.finishNode(node, "YieldExpression")
}...
};
// Parse an assignment expression. This includes applications of
// operators like `+=`.
pp$3.parseMaybeAssign = function(noIn, refDestructuringErrors, afterLeftParse) {
if (this.isContextual("yield")) {
if (this.inGenerator) { return this.parseYield(noIn) }
// The tokenizer will assume an expression is allowed after
// `yield`, but this isn't that kind of yield
else { this.exprAllowed = false; }
}
var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1, oldShorthandAssign = -1;
if (refDestructuringErrors) {
...function(pos, message) {
var loc = getLineInfo(this.input, pos);
message += " (" + loc.line + ":" + loc.column + ")";
var err = new SyntaxError(message);
err.pos = pos; err.loc = loc; err.raisedAt = this.pos;
throw err
}...
pp.expect = function(type) {
this.eat(type) || this.unexpected();
};
// Raise an unexpected token error.
pp.unexpected = function(pos) {
this.raise(pos != null ? pos : this.start, "Unexpected token");
};
function DestructuringErrors() {
this.shorthandAssign =
this.trailingComma =
this.parenthesizedAssign =
this.parenthesizedBind =
...function(pos, message) {
var loc = getLineInfo(this.input, pos);
message += " (" + loc.line + ":" + loc.column + ")";
var err = new SyntaxError(message);
err.pos = pos; err.loc = loc; err.raisedAt = this.pos;
throw err
}...
this.doubleProto =
-1;
}
pp.checkPatternErrors = function(refDestructuringErrors, isAssign) {
if (!refDestructuringErrors) { return }
if (refDestructuringErrors.trailingComma > -1)
{ this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not
permitted after the rest element"); }
var parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind;
if (parens > -1) { this.raiseRecoverable(parens, "Parenthesized pattern"); }
};
pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
if (!refDestructuringErrors) { return false }
var shorthandAssign = refDestructuringErrors.shorthandAssign;
...function() {
var ch = this.input.charCodeAt(this.pos), code;
if (ch === 123) { // '{'
if (this.options.ecmaVersion < 6) { this.unexpected(); }
var codePos = ++this.pos;
code = this.readHexChar(this.input.indexOf("}", this.pos) - this.pos);
++this.pos;
if (code > 0x10FFFF) { this.invalidStringToken(codePos, "Code point out of bounds"); }
} else {
code = this.readHexChar(4);
}
return code
}...
pp$9.readEscapedChar = function(inTemplate) {
var ch = this.input.charCodeAt(++this.pos);
++this.pos;
switch (ch) {
case 110: return "\n" // 'n' -> '\n'
case 114: return "\r" // 'r' -> '\r'
case 120: return String.fromCharCode(this.readHexChar(2)) // 'x'
case 117: return codePointToString$1(this.readCodePoint()) // 'u'
case 116: return "\t" // 't' -> '\t'
case 98: return "\b" // 'b' -> '\b'
case 118: return "\u000b" // 'v' -> '\u000b'
case 102: return "\f" // 'f' -> '\f'
case 13: if (this.input.charCodeAt(this.pos) === 10) { ++this.pos; } // '\r\n'
case 10: // ' \n'
if (this.options.locations) { this.lineStart = this.pos; ++this.curLine; }
...function(inTemplate) {
var ch = this.input.charCodeAt(++this.pos);
++this.pos;
switch (ch) {
case 110: return "\n" // 'n' -> '\n'
case 114: return "\r" // 'r' -> '\r'
case 120: return String.fromCharCode(this.readHexChar(2)) // 'x'
case 117: return codePointToString$1(this.readCodePoint()) // 'u'
case 116: return "\t" // 't' -> '\t'
case 98: return "\b" // 'b' -> '\b'
case 118: return "\u000b" // 'v' -> '\u000b'
case 102: return "\f" // 'f' -> '\f'
case 13: if (this.input.charCodeAt(this.pos) === 10) { ++this.pos; } // '\r\n'
case 10: // ' \n'
if (this.options.locations) { this.lineStart = this.pos; ++this.curLine; }
return ""
default:
if (ch >= 48 && ch <= 55) {
var octalStr = this.input.substr(this.pos - 1, 3).match(/^[0-7]+/)[0];
var octal = parseInt(octalStr, 8);
if (octal > 255) {
octalStr = octalStr.slice(0, -1);
octal = parseInt(octalStr, 8);
}
this.pos += octalStr.length - 1;
ch = this.input.charCodeAt(this.pos);
if ((octalStr !== "0" || ch === 56 || ch === 57) && (this.strict || inTemplate)) {
this.invalidStringToken(
this.pos - 1 - octalStr.length,
inTemplate
? "Octal literal in template string"
: "Octal literal in strict mode"
);
}
return String.fromCharCode(octal)
}
if (isNewLine(ch)) {
// Unicode new line characters after \ get removed from output in both
// template literals and strings
return ""
}
return String.fromCharCode(ch)
}
}...
var out = "", chunkStart = ++this.pos;
for (;;) {
if (this.pos >= this.input.length) { this.raise(this.start, "Unterminated string constant"); }
var ch = this.input.charCodeAt(this.pos);
if (ch === quote) { break }
if (ch === 92) { // '\'
out += this.input.slice(chunkStart, this.pos);
out += this.readEscapedChar(false);
chunkStart = this.pos;
} else {
if (isNewLine(ch, this.options.ecmaVersion >= 10)) { this.raise(this.start, "Unterminated string constant"); }
++this.pos;
}
}
out += this.input.slice(chunkStart, this.pos++);
...function(len) {
var codePos = this.pos;
var n = this.readInt(16, len);
if (n === null) { this.invalidStringToken(codePos, "Bad character escape sequence"); }
return n
}...
pp$9.readCodePoint = function() {
var ch = this.input.charCodeAt(this.pos), code;
if (ch === 123) { // '{'
if (this.options.ecmaVersion < 6) { this.unexpected(); }
var codePos = ++this.pos;
code = this.readHexChar(this.input.indexOf("}", this.pos) - this.pos);
++this.pos;
if (code > 0x10FFFF) { this.invalidStringToken(codePos, "Code point out of bounds"); }
} else {
code = this.readHexChar(4);
}
return code
};
...function(radix, len) {
var start = this.pos, total = 0;
for (var i = 0, e = len == null ? Infinity : len; i < e; ++i) {
var code = this.input.charCodeAt(this.pos), val = (void 0);
if (code >= 97) { val = code - 97 + 10; } // a
else if (code >= 65) { val = code - 65 + 10; } // A
else if (code >= 48 && code <= 57) { val = code - 48; } // 0-9
else { val = Infinity; }
if (val >= radix) { break }
++this.pos;
total = total * radix + val;
}
if (this.pos === start || len != null && this.pos - start !== len) { return null }
return total
}...
return total
};
pp$9.readRadixNumber = function(radix) {
var start = this.pos;
this.pos += 2; // 0x
var val = this.readInt(radix);
if (val == null) { this.raise(this.start + 2, "Expected number in radix " + radix); }
if (this.options.ecmaVersion >= 11 && this.input.charCodeAt(this.pos) === 110) {
val = typeof BigInt !== "undefined" ? BigInt(this.input.slice(start, this.pos)) : null;
++this.pos;
} else if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
return this.finishToken(types.num, val)
};
...function() {
for (; this.pos < this.input.length; this.pos++) {
switch (this.input[this.pos]) {
case "\\":
++this.pos;
break
case "$":
if (this.input[this.pos + 1] !== "{") {
break
}
// falls through
case "`":
return this.finishToken(types.invalidTemplate, this.input.slice(this.start, this.pos))
// no default
}
}
this.raise(this.start, "Unterminated template");
}...
pp$9.tryReadTemplateToken = function() {
this.inTemplateElement = true;
try {
this.readTmplToken();
} catch (err) {
if (err === INVALID_TEMPLATE_ESCAPE_ERROR) {
this.readInvalidTemplateToken();
} else {
throw err
}
}
this.inTemplateElement = false;
};
...function(startsWithDot) {
var start = this.pos;
if (!startsWithDot && this.readInt(10) === null) { this.raise(start, "Invalid number"); }
var octal = this.pos - start >= 2 && this.input.charCodeAt(start) === 48;
if (octal && this.strict) { this.raise(start, "Invalid number"); }
if (octal && /[89]/.test(this.input.slice(start, this.pos))) { octal = false; }
var next = this.input.charCodeAt(this.pos);
if (!octal && !startsWithDot && this.options.ecmaVersion >= 11 && next === 110) {
var str$1 = this.input.slice(start, this.pos);
var val$1 = typeof BigInt !== "undefined" ? BigInt(str$1) : null;
++this.pos;
if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
return this.finishToken(types.num, val$1)
}
if (next === 46 && !octal) { // '.'
++this.pos;
this.readInt(10);
next = this.input.charCodeAt(this.pos);
}
if ((next === 69 || next === 101) && !octal) { // 'eE'
next = this.input.charCodeAt(++this.pos);
if (next === 43 || next === 45) { ++this.pos; } // '+-'
if (this.readInt(10) === null) { this.raise(start, "Invalid number"); }
}
if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
var str = this.input.slice(start, this.pos);
var val = octal ? parseInt(str, 8) : parseFloat(str);
return this.finishToken(types.num, val)
}...
// than characters, and because operator parsing has been inlined
// into it.
//
// All in the name of speed.
//
pp$9.readToken_dot = function() {
var next = this.input.charCodeAt(this.pos + 1);
if (next >= 48 && next <= 57) { return this.readNumber(true) }
var next2 = this.input.charCodeAt(this.pos + 2);
if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.'
this.pos += 3;
return this.finishToken(types.ellipsis)
} else {
++this.pos;
return this.finishToken(types.dot)
...function(radix) {
var start = this.pos;
this.pos += 2; // 0x
var val = this.readInt(radix);
if (val == null) { this.raise(this.start + 2, "Expected number in radix " + radix); }
if (this.options.ecmaVersion >= 11 && this.input.charCodeAt(this.pos) === 110) {
val = typeof BigInt !== "undefined" ? BigInt(this.input.slice(start, this.pos)) : null;
++this.pos;
} else if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
return this.finishToken(types.num, val)
}...
case 96: // '`'
if (this.options.ecmaVersion < 6) { break }
++this.pos;
return this.finishToken(types.backQuote)
case 48: // '0'
var next = this.input.charCodeAt(this.pos + 1);
if (next === 120 || next === 88) { return this.readRadixNumber(16) } // '0x&apos
;, '0X' - hex number
if (this.options.ecmaVersion >= 6) {
if (next === 111 || next === 79) { return this.readRadixNumber(8) } // '0o', '0O' - octal number
if (next === 98 || next === 66) { return this.readRadixNumber(2) } // '0b', '0B' - binary number
}
// Anything else beginning with a digit is an integer, octal
// number, or float.
...function() {
var escaped, inClass, start = this.pos;
for (;;) {
if (this.pos >= this.input.length) { this.raise(start, "Unterminated regular expression"); }
var ch = this.input.charAt(this.pos);
if (lineBreak.test(ch)) { this.raise(start, "Unterminated regular expression"); }
if (!escaped) {
if (ch === "[") { inClass = true; }
else if (ch === "]" && inClass) { inClass = false; }
else if (ch === "/" && !inClass) { break }
escaped = ch === "\\";
} else { escaped = false; }
++this.pos;
}
var pattern = this.input.slice(start, this.pos);
++this.pos;
var flagsStart = this.pos;
var flags = this.readWord1();
if (this.containsEsc) { this.unexpected(flagsStart); }
// Validate pattern
var state = this.regexpState || (this.regexpState = new RegExpValidationState(this));
state.reset(start, pattern, flags);
this.validateRegExpFlags(state);
this.validateRegExpPattern(state);
// Create Literal#value property value.
var value = null;
try {
value = new RegExp(pattern, flags);
} catch (e) {
// ESTree requires null if it failed to instantiate RegExp object.
// https://github.com/estree/estree/blob/a27003adf4fd7bfad44de9cef372a2eacd527b1c/es5.md#regexpliteral
}
return this.finishToken(types.regexp, {pattern: pattern, flags: flags, value: value})
}...
// expression, an expression started by a keyword like `function` or
// `new`, or an expression wrapped in punctuation like `()`, `[]`,
// or `{}`.
pp$3.parseExprAtom = function(refDestructuringErrors) {
// If a division operator appears in an expression position, the
// tokenizer got confused, and we force it to read a regexp instead.
if (this.type === types.slash) { this.readRegexp(); }
var node, canBeArrow = this.potentialArrowAt === this.start;
switch (this.type) {
case types._super:
if (!this.allowSuper)
{ this.raise(this.start, "'super' keyword outside a method"); }
node = this.startNode();
...function(quote) {
var out = "", chunkStart = ++this.pos;
for (;;) {
if (this.pos >= this.input.length) { this.raise(this.start, "Unterminated string constant"); }
var ch = this.input.charCodeAt(this.pos);
if (ch === quote) { break }
if (ch === 92) { // '\'
out += this.input.slice(chunkStart, this.pos);
out += this.readEscapedChar(false);
chunkStart = this.pos;
} else {
if (isNewLine(ch, this.options.ecmaVersion >= 10)) { this.raise(this.start, "Unterminated string constant"); }
++this.pos;
}
}
out += this.input.slice(chunkStart, this.pos++);
return this.finishToken(types.string, out)
}...
// Anything else beginning with a digit is an integer, octal
// number, or float.
case 49: case 50: case 51: case 52: case 53: case 54: case 55: case 56: case 57: // 1-9
return this.readNumber(false)
// Quotes produce strings.
case 34: case 39: // '"', "'"
return this.readString(code)
// Operators are parsed inline in tiny state machines. '=' (61) is
// often referred to. `finishOp` simply skips the amount of
// characters it is given as second argument, and returns a token
// of the type given by its first argument.
case 47: // '/'
...function() {
var out = "", chunkStart = this.pos;
for (;;) {
if (this.pos >= this.input.length) { this.raise(this.start, "Unterminated template"); }
var ch = this.input.charCodeAt(this.pos);
if (ch === 96 || ch === 36 && this.input.charCodeAt(this.pos + 1) === 123) { // '`', '${'
if (this.pos === this.start && (this.type === types.template || this.type === types.invalidTemplate)) {
if (ch === 36) {
this.pos += 2;
return this.finishToken(types.dollarBraceL)
} else {
++this.pos;
return this.finishToken(types.backQuote)
}
}
out += this.input.slice(chunkStart, this.pos);
return this.finishToken(types.template, out)
}
if (ch === 92) { // '\'
out += this.input.slice(chunkStart, this.pos);
out += this.readEscapedChar(true);
chunkStart = this.pos;
} else if (isNewLine(ch)) {
out += this.input.slice(chunkStart, this.pos);
++this.pos;
switch (ch) {
case 13:
if (this.input.charCodeAt(this.pos) === 10) { ++this.pos; }
case 10:
out += "\n";
break
default:
out += String.fromCharCode(ch);
break
}
if (this.options.locations) {
++this.curLine;
this.lineStart = this.pos;
}
chunkStart = this.pos;
} else {
++this.pos;
}
}
}...
// Reads template string tokens.
var INVALID_TEMPLATE_ESCAPE_ERROR = {};
pp$9.tryReadTemplateToken = function() {
this.inTemplateElement = true;
try {
this.readTmplToken();
} catch (err) {
if (err === INVALID_TEMPLATE_ESCAPE_ERROR) {
this.readInvalidTemplateToken();
} else {
throw err
}
}
...function(code) {
// Identifier or keyword. '\uXXXX' sequences are allowed in
// identifiers, so '\' also dispatches to that.
if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */)
{ return this.readWord() }
return this.getTokenFromCode(code)
}...
if (!curContext || !curContext.preserveSpace) { this.skipSpace(); }
this.start = this.pos;
if (this.options.locations) { this.startLoc = this.curPosition(); }
if (this.pos >= this.input.length) { return this.finishToken(types.eof) }
if (curContext.override) { return curContext.override(this) }
else { this.readToken(this.fullCharCodeAtPos()); }
};
pp$9.readToken = function(code) {
// Identifier or keyword. '\uXXXX' sequences are allowed in
// identifiers, so '\' also dispatches to that.
if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */)
{ return this.readWord() }
...function() { // '^'
var next = this.input.charCodeAt(this.pos + 1);
if (next === 61) { return this.finishOp(types.assign, 2) }
return this.finishOp(types.bitwiseXOR, 1)
}...
case 37: case 42: // '%*'
return this.readToken_mult_modulo_exp(code)
case 124: case 38: // '|&'
return this.readToken_pipe_amp(code)
case 94: // '^'
return this.readToken_caret()
case 43: case 45: // '+-'
return this.readToken_plus_min(code)
case 60: case 62: // '<>'
return this.readToken_lt_gt(code)
...function() {
var next = this.input.charCodeAt(this.pos + 1);
if (next >= 48 && next <= 57) { return this.readNumber(true) }
var next2 = this.input.charCodeAt(this.pos + 2);
if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.'
this.pos += 3;
return this.finishToken(types.ellipsis)
} else {
++this.pos;
return this.finishToken(types.dot)
}
}...
};
pp$9.getTokenFromCode = function(code) {
switch (code) {
// The interpretation of a dot depends on whether it is followed
// by a digit or another two dots.
case 46: // '.'
return this.readToken_dot()
// Punctuation tokens.
case 40: ++this.pos; return this.finishToken(types.parenL)
case 41: ++this.pos; return this.finishToken(types.parenR)
case 59: ++this.pos; return this.finishToken(types.semi)
case 44: ++this.pos; return this.finishToken(types.comma)
case 91: ++this.pos; return this.finishToken(types.bracketL)
...function(code) { // '=!'
var next = this.input.charCodeAt(this.pos + 1);
if (next === 61) { return this.finishOp(types.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2) }
if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) { // '=>'
this.pos += 2;
return this.finishToken(types.arrow)
}
return this.finishOp(code === 61 ? types.eq : types.prefix, 1)
}...
case 43: case 45: // '+-'
return this.readToken_plus_min(code)
case 60: case 62: // '<>'
return this.readToken_lt_gt(code)
case 61: case 33: // '=!'
return this.readToken_eq_excl(code)
case 126: // '~'
return this.finishOp(types.prefix, 1)
}
this.raise(this.pos, "Unexpected character '" + codePointToString$1(code) + "'");
};
...function(code) { // '<>'
var next = this.input.charCodeAt(this.pos + 1);
var size = 1;
if (next === code) {
size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2;
if (this.input.charCodeAt(this.pos + size) === 61) { return this.finishOp(types.assign, size + 1) }
return this.finishOp(types.bitShift, size)
}
if (next === 33 && code === 60 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 45 &&
this.input.charCodeAt(this.pos + 3) === 45) {
// `<!--`, an XML-style comment that should be interpreted as a line comment
this.skipLineComment(4);
this.skipSpace();
return this.nextToken()
}
if (next === 61) { size = 2; }
return this.finishOp(types.relational, size)
}...
case 94: // '^'
return this.readToken_caret()
case 43: case 45: // '+-'
return this.readToken_plus_min(code)
case 60: case 62: // '<>'
return this.readToken_lt_gt(code)
case 61: case 33: // '=!'
return this.readToken_eq_excl(code)
case 126: // '~'
return this.finishOp(types.prefix, 1)
}
...function(code) { // '%*'
var next = this.input.charCodeAt(this.pos + 1);
var size = 1;
var tokentype = code === 42 ? types.star : types.modulo;
// exponentiation operator ** and **=
if (this.options.ecmaVersion >= 7 && code === 42 && next === 42) {
++size;
tokentype = types.starstar;
next = this.input.charCodeAt(this.pos + 2);
}
if (next === 61) { return this.finishOp(types.assign, size + 1) }
return this.finishOp(tokentype, size)
}...
// characters it is given as second argument, and returns a token
// of the type given by its first argument.
case 47: // '/'
return this.readToken_slash()
case 37: case 42: // '%*'
return this.readToken_mult_modulo_exp(code)
case 124: case 38: // '|&'
return this.readToken_pipe_amp(code)
case 94: // '^'
return this.readToken_caret()
...function(code) { // '|&'
var next = this.input.charCodeAt(this.pos + 1);
if (next === code) { return this.finishOp(code === 124 ? types.logicalOR : types.logicalAND, 2) }
if (next === 61) { return this.finishOp(types.assign, 2) }
return this.finishOp(code === 124 ? types.bitwiseOR : types.bitwiseAND, 1)
}...
case 47: // '/'
return this.readToken_slash()
case 37: case 42: // '%*'
return this.readToken_mult_modulo_exp(code)
case 124: case 38: // '|&'
return this.readToken_pipe_amp(code)
case 94: // '^'
return this.readToken_caret()
case 43: case 45: // '+-'
return this.readToken_plus_min(code)
...function(code) { // '+-'
var next = this.input.charCodeAt(this.pos + 1);
if (next === code) {
if (next === 45 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 62 &&
(this.lastTokEnd === 0 || lineBreak.test(this.input.slice(this.lastTokEnd, this.pos)))) {
// A `-->` line comment
this.skipLineComment(3);
this.skipSpace();
return this.nextToken()
}
return this.finishOp(types.incDec, 2)
}
if (next === 61) { return this.finishOp(types.assign, 2) }
return this.finishOp(types.plusMin, 1)
}...
case 124: case 38: // '|&'
return this.readToken_pipe_amp(code)
case 94: // '^'
return this.readToken_caret()
case 43: case 45: // '+-'
return this.readToken_plus_min(code)
case 60: case 62: // '<>'
return this.readToken_lt_gt(code)
case 61: case 33: // '=!'
return this.readToken_eq_excl(code)
...function() { // '/'
var next = this.input.charCodeAt(this.pos + 1);
if (this.exprAllowed) { ++this.pos; return this.readRegexp() }
if (next === 61) { return this.finishOp(types.assign, 2) }
return this.finishOp(types.slash, 1)
}...
// Operators are parsed inline in tiny state machines. '=' (61) is
// often referred to. `finishOp` simply skips the amount of
// characters it is given as second argument, and returns a token
// of the type given by its first argument.
case 47: // '/'
return this.readToken_slash()
case 37: case 42: // '%*'
return this.readToken_mult_modulo_exp(code)
case 124: case 38: // '|&'
return this.readToken_pipe_amp(code)
...function() {
var word = this.readWord1();
var type = types.name;
if (this.keywords.test(word)) {
if (this.containsEsc) { this.raiseRecoverable(this.start, "Escape sequence in keyword " + word); }
type = keywords$1[word];
}
return this.finishToken(type, word)
}...
else { this.readToken(this.fullCharCodeAtPos()); }
};
pp$9.readToken = function(code) {
// Identifier or keyword. '\uXXXX' sequences are allowed in
// identifiers, so '\' also dispatches to that.
if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */)
{ return this.readWord() }
return this.getTokenFromCode(code)
};
pp$9.fullCharCodeAtPos = function() {
var code = this.input.charCodeAt(this.pos);
if (code <= 0xd7ff || code >= 0xe000) { return code }
...function() {
this.containsEsc = false;
var word = "", first = true, chunkStart = this.pos;
var astral = this.options.ecmaVersion >= 6;
while (this.pos < this.input.length) {
var ch = this.fullCharCodeAtPos();
if (isIdentifierChar(ch, astral)) {
this.pos += ch <= 0xffff ? 1 : 2;
} else if (ch === 92) { // "\"
this.containsEsc = true;
word += this.input.slice(chunkStart, this.pos);
var escStart = this.pos;
if (this.input.charCodeAt(++this.pos) !== 117) // "u"
{ this.invalidStringToken(this.pos, "Expecting Unicode escape sequence \\uXXXX"); }
++this.pos;
var esc = this.readCodePoint();
if (!(first ? isIdentifierStart : isIdentifierChar)(esc, astral))
{ this.invalidStringToken(escStart, "Invalid Unicode escape"); }
word += codePointToString$1(esc);
chunkStart = this.pos;
} else {
break
}
first = false;
}
return word + this.input.slice(chunkStart, this.pos)
}...
escaped = ch === "\\";
} else { escaped = false; }
++this.pos;
}
var pattern = this.input.slice(start, this.pos);
++this.pos;
var flagsStart = this.pos;
var flags = this.readWord1();
if (this.containsEsc) { this.unexpected(flagsStart); }
// Validate pattern
var state = this.regexpState || (this.regexpState = new RegExpValidationState(this));
state.reset(start, pattern, flags);
this.validateRegExpFlags(state);
this.validateRegExpPattern(state);
...function(state) {
while (state.pos < state.source.length && this.regexp_eatTerm(state))
{ }
}...
state.raise("Invalid named capture referenced");
}
}
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-Disjunction
pp$8.regexp_disjunction = function(state) {
this.regexp_alternative(state);
while (state.eat(0x7C /* | */)) {
this.regexp_alternative(state);
}
// Make the same message as V8.
if (this.regexp_eatQuantifier(state, true)) {
state.raise("Nothing to repeat");
...function(state) {
while (this.regexp_eatClassAtom(state)) {
var left = state.lastIntValue;
if (state.eat(0x2D /* - */) && this.regexp_eatClassAtom(state)) {
var right = state.lastIntValue;
if (state.switchU && (left === -1 || right === -1)) {
state.raise("Invalid character class");
}
if (left !== -1 && right !== -1 && left > right) {
state.raise("Range out of order in character class");
}
}
}
}...
return this.regexp_eatUnicodePropertyValue(state)
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClass
pp$8.regexp_eatCharacterClass = function(state) {
if (state.eat(0x5B /* [ */)) {
state.eat(0x5E /* ^ */);
this.regexp_classRanges(state);
if (state.eat(0x5D /* [ */)) {
return true
}
// Unreachable since it threw "unterminated regular expression" error before.
state.raise("Unterminated character class");
}
return false
...function(state) {
this.regexp_alternative(state);
while (state.eat(0x7C /* | */)) {
this.regexp_alternative(state);
}
// Make the same message as V8.
if (this.regexp_eatQuantifier(state, true)) {
state.raise("Nothing to repeat");
}
if (state.eat(0x7B /* { */)) {
state.raise("Lone quantifier brackets");
}
}...
state.lastStringValue = "";
state.lastAssertionIsQuantifiable = false;
state.numCapturingParens = 0;
state.maxBackReference = 0;
state.groupNames.length = 0;
state.backReferenceNames.length = 0;
this.regexp_disjunction(state);
if (state.pos !== state.source.length) {
// Make the same messages as V8.
if (state.eat(0x29 /* ) */)) {
state.raise("Unmatched ')'");
}
if (state.eat(0x5D /* [ */) || state.eat(0x7D /* } */)) {
...function(state) {
var start = state.pos;
state.lastAssertionIsQuantifiable = false;
// ^, $
if (state.eat(0x5E /* ^ */) || state.eat(0x24 /* $ */)) {
return true
}
// \b \B
if (state.eat(0x5C /* \ */)) {
if (state.eat(0x42 /* B */) || state.eat(0x62 /* b */)) {
return true
}
state.pos = start;
}
// Lookahead / Lookbehind
if (state.eat(0x28 /* ( */) && state.eat(0x3F /* ? */)) {
var lookbehind = false;
if (this.options.ecmaVersion >= 9) {
lookbehind = state.eat(0x3C /* < */);
}
if (state.eat(0x3D /* = */) || state.eat(0x21 /* ! */)) {
this.regexp_disjunction(state);
if (!state.eat(0x29 /* ) */)) {
state.raise("Unterminated group");
}
state.lastAssertionIsQuantifiable = !lookbehind;
return true
}
}
state.pos = start;
return false
}...
pp$8.regexp_alternative = function(state) {
while (state.pos < state.source.length && this.regexp_eatTerm(state))
{ }
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Term
pp$8.regexp_eatTerm = function(state) {
if (this.regexp_eatAssertion(state)) {
// Handle `QuantifiableAssertion Quantifier` alternative.
// `state.lastAssertionIsQuantifiable` is true if the last eaten Assertion
// is a QuantifiableAssertion.
if (state.lastAssertionIsQuantifiable && this.regexp_eatQuantifier(state)) {
// Make the same message as V8.
if (state.switchU) {
state.raise("Invalid quantifier");
...function(state) {
return (
this.regexp_eatPatternCharacters(state) ||
state.eat(0x2E /* . */) ||
this.regexp_eatReverseSolidusAtomEscape(state) ||
this.regexp_eatCharacterClass(state) ||
this.regexp_eatUncapturingGroup(state) ||
this.regexp_eatCapturingGroup(state)
)
}...
if (state.switchU) {
state.raise("Invalid quantifier");
}
}
return true
}
if (state.switchU ? this.regexp_eatAtom(state) : this.regexp_eatExtendedAtom(state)) {
this.regexp_eatQuantifier(state);
return true
}
return false
};
...function(state) {
if (
this.regexp_eatBackReference(state) ||
this.regexp_eatCharacterClassEscape(state) ||
this.regexp_eatCharacterEscape(state) ||
(state.switchN && this.regexp_eatKGroupName(state))
) {
return true
}
if (state.switchU) {
// Make the same message as V8.
if (state.current() === 0x63 /* c */) {
state.raise("Invalid unicode escape");
}
state.raise("Invalid escape");
}
return false
}...
this.regexp_eatUncapturingGroup(state) ||
this.regexp_eatCapturingGroup(state)
)
};
pp$8.regexp_eatReverseSolidusAtomEscape = function(state) {
var start = state.pos;
if (state.eat(0x5C /* \ */)) {
if (this.regexp_eatAtomEscape(state)) {
return true
}
state.pos = start;
}
return false
};
pp$8.regexp_eatUncapturingGroup = function(state) {
...function(state) {
var start = state.pos;
if (this.regexp_eatDecimalEscape(state)) {
var n = state.lastIntValue;
if (state.switchU) {
// For SyntaxError in https://www.ecma-international.org/ecma-262/8.0/#sec-atomescape
if (n > state.maxBackReference) {
state.maxBackReference = n;
}
return true
}
if (n <= state.numCapturingParens) {
return true
}
state.pos = start;
}
return false
}...
function isRegExpIdentifierPart(ch) {
return isIdentifierChar(ch, true) || ch === 0x24 /* $ */ || ch === 0x5F /* _ */ || ch === 0x200C /* <ZWNJ> */ || ch ===
0x200D /* <ZWJ> */
}
// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-AtomEscape
pp$8.regexp_eatAtomEscape = function(state) {
if (
this.regexp_eatBackReference(state) ||
this.regexp_eatCharacterClassEscape(state) ||
this.regexp_eatCharacterEscape(state) ||
(state.switchN && this.regexp_eatKGroupName(state))
) {
return true
}
if (state.switchU) {
...function(state, noError) {
var start = state.pos;
if (state.eat(0x7B /* { */)) {
var min = 0, max = -1;
if (this.regexp_eatDecimalDigits(state)) {
min = state.lastIntValue;
if (state.eat(0x2C /* , */) && this.regexp_eatDecimalDigits(state)) {
max = state.lastIntValue;
}
if (state.eat(0x7D /* } */)) {
// SyntaxError in https://www.ecma-international.org/ecma-262/8.0/#sec-term
if (max !== -1 && max < min && !noError) {
state.raise("numbers out of order in {} quantifier");
}
return true
}
}
if (state.switchU && !noError) {
state.raise("Incomplete quantifier");
}
state.pos = start;
}
return false
}...
// https://www.ecma-international.org/ecma-262/8.0/#prod-QuantifierPrefix
pp$8.regexp_eatQuantifierPrefix = function(state, noError) {
return (
state.eat(0x2A /* * */) ||
state.eat(0x2B /* + */) ||
state.eat(0x3F /* ? */) ||
this.regexp_eatBracedQuantifier(state, noError)
)
};
pp$8.regexp_eatBracedQuantifier = function(state, noError) {
var start = state.pos;
if (state.eat(0x7B /* { */)) {
var min = 0, max = -1;
if (this.regexp_eatDecimalDigits(state)) {
...function(state) {
var start = state.pos;
if (state.eat(0x63 /* c */)) {
if (this.regexp_eatControlLetter(state)) {
return true
}
state.pos = start;
}
return false
}...
return false
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-CharacterEscape
pp$8.regexp_eatCharacterEscape = function(state) {
return (
this.regexp_eatControlEscape(state) ||
this.regexp_eatCControlLetter(state) ||
this.regexp_eatZero(state) ||
this.regexp_eatHexEscapeSequence(state) ||
this.regexp_eatRegExpUnicodeEscapeSequence(state) ||
(!state.switchU && this.regexp_eatLegacyOctalEscapeSequence(state)) ||
this.regexp_eatIdentityEscape(state)
)
};
...function(state) {
if (state.eat(0x28 /* ( */)) {
if (this.options.ecmaVersion >= 9) {
this.regexp_groupSpecifier(state);
} else if (state.current() === 0x3F /* ? */) {
state.raise("Invalid group");
}
this.regexp_disjunction(state);
if (state.eat(0x29 /* ) */)) {
state.numCapturingParens += 1;
return true
}
state.raise("Unterminated group");
}
return false
}...
pp$8.regexp_eatAtom = function(state) {
return (
this.regexp_eatPatternCharacters(state) ||
state.eat(0x2E /* . */) ||
this.regexp_eatReverseSolidusAtomEscape(state) ||
this.regexp_eatCharacterClass(state) ||
this.regexp_eatUncapturingGroup(state) ||
this.regexp_eatCapturingGroup(state)
)
};
pp$8.regexp_eatReverseSolidusAtomEscape = function(state) {
var start = state.pos;
if (state.eat(0x5C /* \ */)) {
if (this.regexp_eatAtomEscape(state)) {
return true
...function(state) {
if (state.eat(0x5B /* [ */)) {
state.eat(0x5E /* ^ */);
this.regexp_classRanges(state);
if (state.eat(0x5D /* [ */)) {
return true
}
// Unreachable since it threw "unterminated regular expression" error before.
state.raise("Unterminated character class");
}
return false
}...
// https://www.ecma-international.org/ecma-262/8.0/#prod-Atom
pp$8.regexp_eatAtom = function(state) {
return (
this.regexp_eatPatternCharacters(state) ||
state.eat(0x2E /* . */) ||
this.regexp_eatReverseSolidusAtomEscape(state) ||
this.regexp_eatCharacterClass(state) ||
this.regexp_eatUncapturingGroup(state) ||
this.regexp_eatCapturingGroup(state)
)
};
pp$8.regexp_eatReverseSolidusAtomEscape = function(state) {
var start = state.pos;
if (state.eat(0x5C /* \ */)) {
...function(state) {
var ch = state.current();
if (isCharacterClassEscape(ch)) {
state.lastIntValue = -1;
state.advance();
return true
}
if (
state.switchU &&
this.options.ecmaVersion >= 9 &&
(ch === 0x50 /* P */ || ch === 0x70 /* p */)
) {
state.lastIntValue = -1;
state.advance();
if (
state.eat(0x7B /* { */) &&
this.regexp_eatUnicodePropertyValueExpression(state) &&
state.eat(0x7D /* } */)
) {
return true
}
state.raise("Invalid property name");
}
return false
}...
return isIdentifierChar(ch, true) || ch === 0x24 /* $ */ || ch === 0x5F /* _ */ || ch === 0x200C /* <ZWNJ> */ || ch ===
0x200D /* <ZWJ> */
}
// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-AtomEscape
pp$8.regexp_eatAtomEscape = function(state) {
if (
this.regexp_eatBackReference(state) ||
this.regexp_eatCharacterClassEscape(state) ||
this.regexp_eatCharacterEscape(state) ||
(state.switchN && this.regexp_eatKGroupName(state))
) {
return true
}
if (state.switchU) {
// Make the same message as V8.
...function(state) {
return (
this.regexp_eatControlEscape(state) ||
this.regexp_eatCControlLetter(state) ||
this.regexp_eatZero(state) ||
this.regexp_eatHexEscapeSequence(state) ||
this.regexp_eatRegExpUnicodeEscapeSequence(state) ||
(!state.switchU && this.regexp_eatLegacyOctalEscapeSequence(state)) ||
this.regexp_eatIdentityEscape(state)
)
}...
}
// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-AtomEscape
pp$8.regexp_eatAtomEscape = function(state) {
if (
this.regexp_eatBackReference(state) ||
this.regexp_eatCharacterClassEscape(state) ||
this.regexp_eatCharacterEscape(state) ||
(state.switchN && this.regexp_eatKGroupName(state))
) {
return true
}
if (state.switchU) {
// Make the same message as V8.
if (state.current() === 0x63 /* c */) {
...function(state) {
var start = state.pos;
if (state.eat(0x5C /* \ */)) {
if (this.regexp_eatClassEscape(state)) {
return true
}
if (state.switchU) {
// Make the same message as V8.
var ch$1 = state.current();
if (ch$1 === 0x63 /* c */ || isOctalDigit(ch$1)) {
state.raise("Invalid class escape");
}
state.raise("Invalid escape");
}
state.pos = start;
}
var ch = state.current();
if (ch !== 0x5D /* [ */) {
state.lastIntValue = ch;
state.advance();
return true
}
return false
}...
return false
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-ClassRanges
// https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRanges
// https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRangesNoDash
pp$8.regexp_classRanges = function(state) {
while (this.regexp_eatClassAtom(state)) {
var left = state.lastIntValue;
if (state.eat(0x2D /* - */) && this.regexp_eatClassAtom(state)) {
var right = state.lastIntValue;
if (state.switchU && (left === -1 || right === -1)) {
state.raise("Invalid character class");
}
if (left !== -1 && right !== -1 && left > right) {
...function(state) {
var ch = state.current();
if (isDecimalDigit(ch) || ch === 0x5F /* _ */) {
state.lastIntValue = ch % 0x20;
state.advance();
return true
}
return false
}...
if (state.switchU && state.eat(0x2D /* - */)) {
state.lastIntValue = 0x2D; /* - */
return true
}
if (!state.switchU && state.eat(0x63 /* c */)) {
if (this.regexp_eatClassControlLetter(state)) {
return true
}
state.pos = start;
}
return (
this.regexp_eatCharacterClassEscape(state) ||
...function(state) {
var start = state.pos;
if (state.eat(0x62 /* b */)) {
state.lastIntValue = 0x08; /* <BS> */
return true
}
if (state.switchU && state.eat(0x2D /* - */)) {
state.lastIntValue = 0x2D; /* - */
return true
}
if (!state.switchU && state.eat(0x63 /* c */)) {
if (this.regexp_eatClassControlLetter(state)) {
return true
}
state.pos = start;
}
return (
this.regexp_eatCharacterClassEscape(state) ||
this.regexp_eatCharacterEscape(state)
)
}...
// https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtom
// https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtomNoDash
pp$8.regexp_eatClassAtom = function(state) {
var start = state.pos;
if (state.eat(0x5C /* \ */)) {
if (this.regexp_eatClassEscape(state)) {
return true
}
if (state.switchU) {
// Make the same message as V8.
var ch$1 = state.current();
if (ch$1 === 0x63 /* c */ || isOctalDigit(ch$1)) {
state.raise("Invalid class escape");
...function(state) {
var ch = state.current();
if (ch === 0x74 /* t */) {
state.lastIntValue = 0x09; /* \t */
state.advance();
return true
}
if (ch === 0x6E /* n */) {
state.lastIntValue = 0x0A; /* \n */
state.advance();
return true
}
if (ch === 0x76 /* v */) {
state.lastIntValue = 0x0B; /* \v */
state.advance();
return true
}
if (ch === 0x66 /* f */) {
state.lastIntValue = 0x0C; /* \f */
state.advance();
return true
}
if (ch === 0x72 /* r */) {
state.lastIntValue = 0x0D; /* \r */
state.advance();
return true
}
return false
}...
}
return false
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-CharacterEscape
pp$8.regexp_eatCharacterEscape = function(state) {
return (
this.regexp_eatControlEscape(state) ||
this.regexp_eatCControlLetter(state) ||
this.regexp_eatZero(state) ||
this.regexp_eatHexEscapeSequence(state) ||
this.regexp_eatRegExpUnicodeEscapeSequence(state) ||
(!state.switchU && this.regexp_eatLegacyOctalEscapeSequence(state)) ||
this.regexp_eatIdentityEscape(state)
)
...function(state) {
var ch = state.current();
if (isControlLetter(ch)) {
state.lastIntValue = ch % 0x20;
state.advance();
return true
}
return false
}...
(!state.switchU && this.regexp_eatLegacyOctalEscapeSequence(state)) ||
this.regexp_eatIdentityEscape(state)
)
};
pp$8.regexp_eatCControlLetter = function(state) {
var start = state.pos;
if (state.eat(0x63 /* c */)) {
if (this.regexp_eatControlLetter(state)) {
return true
}
state.pos = start;
}
return false
};
pp$8.regexp_eatZero = function(state) {
...function(state) {
var start = state.pos;
var ch = 0;
state.lastIntValue = 0;
while (isDecimalDigit(ch = state.current())) {
state.lastIntValue = 10 * state.lastIntValue + (ch - 0x30 /* 0 */);
state.advance();
}
return state.pos !== start
}...
this.regexp_eatBracedQuantifier(state, noError)
)
};
pp$8.regexp_eatBracedQuantifier = function(state, noError) {
var start = state.pos;
if (state.eat(0x7B /* { */)) {
var min = 0, max = -1;
if (this.regexp_eatDecimalDigits(state)) {
min = state.lastIntValue;
if (state.eat(0x2C /* , */) && this.regexp_eatDecimalDigits(state)) {
max = state.lastIntValue;
}
if (state.eat(0x7D /* } */)) {
// SyntaxError in https://www.ecma-international.org/ecma-262/8.0/#sec-term
if (max !== -1 && max < min && !noError) {
...function(state) {
state.lastIntValue = 0;
var ch = state.current();
if (ch >= 0x31 /* 1 */ && ch <= 0x39 /* 9 */) {
do {
state.lastIntValue = 10 * state.lastIntValue + (ch - 0x30 /* 0 */);
state.advance();
} while ((ch = state.current()) >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */)
return true
}
return false
}...
}
state.raise("Invalid escape");
}
return false
};
pp$8.regexp_eatBackReference = function(state) {
var start = state.pos;
if (this.regexp_eatDecimalEscape(state)) {
var n = state.lastIntValue;
if (state.switchU) {
// For SyntaxError in https://www.ecma-international.org/ecma-262/8.0/#sec-atomescape
if (n > state.maxBackReference) {
state.maxBackReference = n;
}
return true
...function(state) {
return (
state.eat(0x2E /* . */) ||
this.regexp_eatReverseSolidusAtomEscape(state) ||
this.regexp_eatCharacterClass(state) ||
this.regexp_eatUncapturingGroup(state) ||
this.regexp_eatCapturingGroup(state) ||
this.regexp_eatInvalidBracedQuantifier(state) ||
this.regexp_eatExtendedPatternCharacter(state)
)
}...
if (state.switchU) {
state.raise("Invalid quantifier");
}
}
return true
}
if (state.switchU ? this.regexp_eatAtom(state) : this.regexp_eatExtendedAtom(state)) {
this.regexp_eatQuantifier(state);
return true
}
return false
};
...function(state) {
var ch = state.current();
if (
ch !== -1 &&
ch !== 0x24 /* $ */ &&
!(ch >= 0x28 /* ( */ && ch <= 0x2B /* + */) &&
ch !== 0x2E /* . */ &&
ch !== 0x3F /* ? */ &&
ch !== 0x5B /* [ */ &&
ch !== 0x5E /* ^ */ &&
ch !== 0x7C /* | */
) {
state.advance();
return true
}
return false
}...
return (
state.eat(0x2E /* . */) ||
this.regexp_eatReverseSolidusAtomEscape(state) ||
this.regexp_eatCharacterClass(state) ||
this.regexp_eatUncapturingGroup(state) ||
this.regexp_eatCapturingGroup(state) ||
this.regexp_eatInvalidBracedQuantifier(state) ||
this.regexp_eatExtendedPatternCharacter(state)
)
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-InvalidBracedQuantifier
pp$8.regexp_eatInvalidBracedQuantifier = function(state) {
if (this.regexp_eatBracedQuantifier(state, true)) {
state.raise("Nothing to repeat");
...function(state, length) {
var start = state.pos;
state.lastIntValue = 0;
for (var i = 0; i < length; ++i) {
var ch = state.current();
if (!isHexDigit(ch)) {
state.pos = start;
return false
}
state.lastIntValue = 16 * state.lastIntValue + hexToInt(ch);
state.advance();
}
return true
}...
}
// https://www.ecma-international.org/ecma-262/8.0/#prod-RegExpUnicodeEscapeSequence
pp$8.regexp_eatRegExpUnicodeEscapeSequence = function(state) {
var start = state.pos;
if (state.eat(0x75 /* u */)) {
if (this.regexp_eatFixedHexDigits(state, 4)) {
var lead = state.lastIntValue;
if (state.switchU && lead >= 0xD800 && lead <= 0xDBFF) {
var leadSurrogateEnd = state.pos;
if (state.eat(0x5C /* \ */) && state.eat(0x75 /* u */) && this.regexp_eatFixedHexDigits(state, 4)) {
var trail = state.lastIntValue;
if (trail >= 0xDC00 && trail <= 0xDFFF) {
state.lastIntValue = (lead - 0xD800) * 0x400 + (trail - 0xDC00) + 0x10000;
...function(state) {
state.lastStringValue = "";
if (state.eat(0x3C /* < */)) {
if (this.regexp_eatRegExpIdentifierName(state) && state.eat(0x3E /* > */)) {
return true
}
state.raise("Invalid capture group name");
}
return false
}...
};
// GroupSpecifier[U] ::
// [empty]
// `?` GroupName[?U]
pp$8.regexp_groupSpecifier = function(state) {
if (state.eat(0x3F /* ? */)) {
if (this.regexp_eatGroupName(state)) {
if (state.groupNames.indexOf(state.lastStringValue) !== -1) {
state.raise("Duplicate capture group name");
}
state.groupNames.push(state.lastStringValue);
return
}
state.raise("Invalid group");
...function(state) {
var start = state.pos;
var ch = 0;
state.lastIntValue = 0;
while (isHexDigit(ch = state.current())) {
state.lastIntValue = 16 * state.lastIntValue + hexToInt(ch);
state.advance();
}
return state.pos !== start
}...
state.lastIntValue = lead;
}
return true
}
if (
state.switchU &&
state.eat(0x7B /* { */) &&
this.regexp_eatHexDigits(state) &&
state.eat(0x7D /* } */) &&
isValidUnicode(state.lastIntValue)
) {
return true
}
if (state.switchU) {
state.raise("Invalid unicode escape");
...function(state) {
var start = state.pos;
if (state.eat(0x78 /* x */)) {
if (this.regexp_eatFixedHexDigits(state, 2)) {
return true
}
if (state.switchU) {
state.raise("Invalid escape");
}
state.pos = start;
}
return false
}...
// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-CharacterEscape
pp$8.regexp_eatCharacterEscape = function(state) {
return (
this.regexp_eatControlEscape(state) ||
this.regexp_eatCControlLetter(state) ||
this.regexp_eatZero(state) ||
this.regexp_eatHexEscapeSequence(state) ||
this.regexp_eatRegExpUnicodeEscapeSequence(state) ||
(!state.switchU && this.regexp_eatLegacyOctalEscapeSequence(state)) ||
this.regexp_eatIdentityEscape(state)
)
};
pp$8.regexp_eatCControlLetter = function(state) {
var start = state.pos;
...function(state) {
if (state.switchU) {
if (this.regexp_eatSyntaxCharacter(state)) {
return true
}
if (state.eat(0x2F /* / */)) {
state.lastIntValue = 0x2F; /* / */
return true
}
return false
}
var ch = state.current();
if (ch !== 0x63 /* c */ && (!state.switchN || ch !== 0x6B /* k */)) {
state.lastIntValue = ch;
state.advance();
return true
}
return false
}...
return (
this.regexp_eatControlEscape(state) ||
this.regexp_eatCControlLetter(state) ||
this.regexp_eatZero(state) ||
this.regexp_eatHexEscapeSequence(state) ||
this.regexp_eatRegExpUnicodeEscapeSequence(state) ||
(!state.switchU && this.regexp_eatLegacyOctalEscapeSequence(state)) ||
this.regexp_eatIdentityEscape(state)
)
};
pp$8.regexp_eatCControlLetter = function(state) {
var start = state.pos;
if (state.eat(0x63 /* c */)) {
if (this.regexp_eatControlLetter(state)) {
return true
...function(state) {
if (this.regexp_eatBracedQuantifier(state, true)) {
state.raise("Nothing to repeat");
}
return false
}...
pp$8.regexp_eatExtendedAtom = function(state) {
return (
state.eat(0x2E /* . */) ||
this.regexp_eatReverseSolidusAtomEscape(state) ||
this.regexp_eatCharacterClass(state) ||
this.regexp_eatUncapturingGroup(state) ||
this.regexp_eatCapturingGroup(state) ||
this.regexp_eatInvalidBracedQuantifier(state) ||
this.regexp_eatExtendedPatternCharacter(state)
)
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-InvalidBracedQuantifier
pp$8.regexp_eatInvalidBracedQuantifier = function(state) {
if (this.regexp_eatBracedQuantifier(state, true)) {
...function(state) {
if (state.eat(0x6B /* k */)) {
if (this.regexp_eatGroupName(state)) {
state.backReferenceNames.push(state.lastStringValue);
return true
}
state.raise("Invalid named reference");
}
return false
}...
// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-AtomEscape
pp$8.regexp_eatAtomEscape = function(state) {
if (
this.regexp_eatBackReference(state) ||
this.regexp_eatCharacterClassEscape(state) ||
this.regexp_eatCharacterEscape(state) ||
(state.switchN && this.regexp_eatKGroupName(state))
) {
return true
}
if (state.switchU) {
// Make the same message as V8.
if (state.current() === 0x63 /* c */) {
state.raise("Invalid unicode escape");
...function(state) {
if (this.regexp_eatOctalDigit(state)) {
var n1 = state.lastIntValue;
if (this.regexp_eatOctalDigit(state)) {
var n2 = state.lastIntValue;
if (n1 <= 3 && this.regexp_eatOctalDigit(state)) {
state.lastIntValue = n1 * 64 + n2 * 8 + state.lastIntValue;
} else {
state.lastIntValue = n1 * 8 + n2;
}
} else {
state.lastIntValue = n1;
}
return true
}
return false
}...
pp$8.regexp_eatCharacterEscape = function(state) {
return (
this.regexp_eatControlEscape(state) ||
this.regexp_eatCControlLetter(state) ||
this.regexp_eatZero(state) ||
this.regexp_eatHexEscapeSequence(state) ||
this.regexp_eatRegExpUnicodeEscapeSequence(state) ||
(!state.switchU && this.regexp_eatLegacyOctalEscapeSequence(state)) ||
this.regexp_eatIdentityEscape(state)
)
};
pp$8.regexp_eatCControlLetter = function(state) {
var start = state.pos;
if (state.eat(0x63 /* c */)) {
if (this.regexp_eatControlLetter(state)) {
...function(state) {
return this.regexp_eatUnicodePropertyValue(state)
}...
this.regexp_validateUnicodePropertyNameAndValue(state, name, value);
return true
}
}
state.pos = start;
// LoneUnicodePropertyNameOrValue
if (this.regexp_eatLoneUnicodePropertyNameOrValue(state)) {
var nameOrValue = state.lastStringValue;
this.regexp_validateUnicodePropertyNameOrValue(state, nameOrValue);
return true
}
return false
};
pp$8.regexp_validateUnicodePropertyNameAndValue = function(state, name, value) {
...function(state) {
var ch = state.current();
if (isOctalDigit(ch)) {
state.lastIntValue = ch - 0x30; /* 0 */
state.advance();
return true
}
state.lastIntValue = 0;
return false
}...
}
return ch - 0x30 /* 0 */
}
// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-LegacyOctalEscapeSequence
// Allows only 0-377(octal) i.e. 0-255(decimal).
pp$8.regexp_eatLegacyOctalEscapeSequence = function(state) {
if (this.regexp_eatOctalDigit(state)) {
var n1 = state.lastIntValue;
if (this.regexp_eatOctalDigit(state)) {
var n2 = state.lastIntValue;
if (n1 <= 3 && this.regexp_eatOctalDigit(state)) {
state.lastIntValue = n1 * 64 + n2 * 8 + state.lastIntValue;
} else {
state.lastIntValue = n1 * 8 + n2;
...function(state) {
var start = state.pos;
var ch = 0;
while ((ch = state.current()) !== -1 && !isSyntaxCharacter(ch)) {
state.advance();
}
return state.pos !== start
}...
}
return false
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-Atom
pp$8.regexp_eatAtom = function(state) {
return (
this.regexp_eatPatternCharacters(state) ||
state.eat(0x2E /* . */) ||
this.regexp_eatReverseSolidusAtomEscape(state) ||
this.regexp_eatCharacterClass(state) ||
this.regexp_eatUncapturingGroup(state) ||
this.regexp_eatCapturingGroup(state)
)
};
...function(state, noError) {
if ( noError === void 0 ) noError = false;
if (this.regexp_eatQuantifierPrefix(state, noError)) {
state.eat(0x3F /* ? */);
return true
}
return false
}...
pp$8.regexp_disjunction = function(state) {
this.regexp_alternative(state);
while (state.eat(0x7C /* | */)) {
this.regexp_alternative(state);
}
// Make the same message as V8.
if (this.regexp_eatQuantifier(state, true)) {
state.raise("Nothing to repeat");
}
if (state.eat(0x7B /* { */)) {
state.raise("Lone quantifier brackets");
}
};
...function(state, noError) {
return (
state.eat(0x2A /* * */) ||
state.eat(0x2B /* + */) ||
state.eat(0x3F /* ? */) ||
this.regexp_eatBracedQuantifier(state, noError)
)
}...
return false
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-Quantifier
pp$8.regexp_eatQuantifier = function(state, noError) {
if ( noError === void 0 ) noError = false;
if (this.regexp_eatQuantifierPrefix(state, noError)) {
state.eat(0x3F /* ? */);
return true
}
return false
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-QuantifierPrefix
...function(state) {
state.lastStringValue = "";
if (this.regexp_eatRegExpIdentifierStart(state)) {
state.lastStringValue += codePointToString(state.lastIntValue);
while (this.regexp_eatRegExpIdentifierPart(state)) {
state.lastStringValue += codePointToString(state.lastIntValue);
}
return true
}
return false
}...
// GroupName[U] ::
// `<` RegExpIdentifierName[?U] `>`
// Note: this updates `state.lastStringValue` property with the eaten name.
pp$8.regexp_eatGroupName = function(state) {
state.lastStringValue = "";
if (state.eat(0x3C /* < */)) {
if (this.regexp_eatRegExpIdentifierName(state) && state.eat(0x3E /* > */)) {
return true
}
state.raise("Invalid capture group name");
}
return false
};
...function(state) {
var start = state.pos;
var ch = state.current();
state.advance();
if (ch === 0x5C /* \ */ && this.regexp_eatRegExpUnicodeEscapeSequence(state)) {
ch = state.lastIntValue;
}
if (isRegExpIdentifierPart(ch)) {
state.lastIntValue = ch;
return true
}
state.pos = start;
return false
}...
// RegExpIdentifierStart[?U]
// RegExpIdentifierName[?U] RegExpIdentifierPart[?U]
// Note: this updates `state.lastStringValue` property with the eaten name.
pp$8.regexp_eatRegExpIdentifierName = function(state) {
state.lastStringValue = "";
if (this.regexp_eatRegExpIdentifierStart(state)) {
state.lastStringValue += codePointToString(state.lastIntValue);
while (this.regexp_eatRegExpIdentifierPart(state)) {
state.lastStringValue += codePointToString(state.lastIntValue);
}
return true
}
return false
};
...function(state) {
var start = state.pos;
var ch = state.current();
state.advance();
if (ch === 0x5C /* \ */ && this.regexp_eatRegExpUnicodeEscapeSequence(state)) {
ch = state.lastIntValue;
}
if (isRegExpIdentifierStart(ch)) {
state.lastIntValue = ch;
return true
}
state.pos = start;
return false
}...
// RegExpIdentifierName[U] ::
// RegExpIdentifierStart[?U]
// RegExpIdentifierName[?U] RegExpIdentifierPart[?U]
// Note: this updates `state.lastStringValue` property with the eaten name.
pp$8.regexp_eatRegExpIdentifierName = function(state) {
state.lastStringValue = "";
if (this.regexp_eatRegExpIdentifierStart(state)) {
state.lastStringValue += codePointToString(state.lastIntValue);
while (this.regexp_eatRegExpIdentifierPart(state)) {
state.lastStringValue += codePointToString(state.lastIntValue);
}
return true
}
return false
...function(state) {
var start = state.pos;
if (state.eat(0x75 /* u */)) {
if (this.regexp_eatFixedHexDigits(state, 4)) {
var lead = state.lastIntValue;
if (state.switchU && lead >= 0xD800 && lead <= 0xDBFF) {
var leadSurrogateEnd = state.pos;
if (state.eat(0x5C /* \ */) && state.eat(0x75 /* u */) && this.regexp_eatFixedHexDigits(state, 4)) {
var trail = state.lastIntValue;
if (trail >= 0xDC00 && trail <= 0xDFFF) {
state.lastIntValue = (lead - 0xD800) * 0x400 + (trail - 0xDC00) + 0x10000;
return true
}
}
state.pos = leadSurrogateEnd;
state.lastIntValue = lead;
}
return true
}
if (
state.switchU &&
state.eat(0x7B /* { */) &&
this.regexp_eatHexDigits(state) &&
state.eat(0x7D /* } */) &&
isValidUnicode(state.lastIntValue)
) {
return true
}
if (state.switchU) {
state.raise("Invalid unicode escape");
}
state.pos = start;
}
return false
}...
// `_`
// `\` RegExpUnicodeEscapeSequence[?U]
pp$8.regexp_eatRegExpIdentifierStart = function(state) {
var start = state.pos;
var ch = state.current();
state.advance();
if (ch === 0x5C /* \ */ && this.regexp_eatRegExpUnicodeEscapeSequence(state)) {
ch = state.lastIntValue;
}
if (isRegExpIdentifierStart(ch)) {
state.lastIntValue = ch;
return true
}
...function(state) {
var start = state.pos;
if (state.eat(0x5C /* \ */)) {
if (this.regexp_eatAtomEscape(state)) {
return true
}
state.pos = start;
}
return false
}...
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-Atom
pp$8.regexp_eatAtom = function(state) {
return (
this.regexp_eatPatternCharacters(state) ||
state.eat(0x2E /* . */) ||
this.regexp_eatReverseSolidusAtomEscape(state) ||
this.regexp_eatCharacterClass(state) ||
this.regexp_eatUncapturingGroup(state) ||
this.regexp_eatCapturingGroup(state)
)
};
pp$8.regexp_eatReverseSolidusAtomEscape = function(state) {
var start = state.pos;
...function(state) {
var ch = state.current();
if (isSyntaxCharacter(ch)) {
state.lastIntValue = ch;
state.advance();
return true
}
return false
}...
function isValidUnicode(ch) {
return ch >= 0 && ch <= 0x10FFFF
}
// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-IdentityEscape
pp$8.regexp_eatIdentityEscape = function(state) {
if (state.switchU) {
if (this.regexp_eatSyntaxCharacter(state)) {
return true
}
if (state.eat(0x2F /* / */)) {
state.lastIntValue = 0x2F; /* / */
return true
}
return false
...function(state) {
if (this.regexp_eatAssertion(state)) {
// Handle `QuantifiableAssertion Quantifier` alternative.
// `state.lastAssertionIsQuantifiable` is true if the last eaten Assertion
// is a QuantifiableAssertion.
if (state.lastAssertionIsQuantifiable && this.regexp_eatQuantifier(state)) {
// Make the same message as V8.
if (state.switchU) {
state.raise("Invalid quantifier");
}
}
return true
}
if (state.switchU ? this.regexp_eatAtom(state) : this.regexp_eatExtendedAtom(state)) {
this.regexp_eatQuantifier(state);
return true
}
return false
}...
if (state.eat(0x7B /* { */)) {
state.raise("Lone quantifier brackets");
}
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-Alternative
pp$8.regexp_alternative = function(state) {
while (state.pos < state.source.length && this.regexp_eatTerm(state))
{ }
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Term
pp$8.regexp_eatTerm = function(state) {
if (this.regexp_eatAssertion(state)) {
// Handle `QuantifiableAssertion Quantifier` alternative.
...function(state) {
var start = state.pos;
if (state.eat(0x28 /* ( */)) {
if (state.eat(0x3F /* ? */) && state.eat(0x3A /* : */)) {
this.regexp_disjunction(state);
if (state.eat(0x29 /* ) */)) {
return true
}
state.raise("Unterminated group");
}
state.pos = start;
}
return false
}...
// https://www.ecma-international.org/ecma-262/8.0/#prod-Atom
pp$8.regexp_eatAtom = function(state) {
return (
this.regexp_eatPatternCharacters(state) ||
state.eat(0x2E /* . */) ||
this.regexp_eatReverseSolidusAtomEscape(state) ||
this.regexp_eatCharacterClass(state) ||
this.regexp_eatUncapturingGroup(state) ||
this.regexp_eatCapturingGroup(state)
)
};
pp$8.regexp_eatReverseSolidusAtomEscape = function(state) {
var start = state.pos;
if (state.eat(0x5C /* \ */)) {
if (this.regexp_eatAtomEscape(state)) {
...function(state) {
var ch = 0;
state.lastStringValue = "";
while (isUnicodePropertyNameCharacter(ch = state.current())) {
state.lastStringValue += codePointToString(ch);
state.advance();
}
return state.lastStringValue !== ""
}...
// UnicodePropertyValueExpression ::
// UnicodePropertyName `=` UnicodePropertyValue
// LoneUnicodePropertyNameOrValue
pp$8.regexp_eatUnicodePropertyValueExpression = function(state) {
var start = state.pos;
// UnicodePropertyName `=` UnicodePropertyValue
if (this.regexp_eatUnicodePropertyName(state) && state.eat(0x3D /* = */)) {
var name = state.lastStringValue;
if (this.regexp_eatUnicodePropertyValue(state)) {
var value = state.lastStringValue;
this.regexp_validateUnicodePropertyNameAndValue(state, name, value);
return true
}
}
...function(state) {
var ch = 0;
state.lastStringValue = "";
while (isUnicodePropertyValueCharacter(ch = state.current())) {
state.lastStringValue += codePointToString(ch);
state.advance();
}
return state.lastStringValue !== ""
}...
// LoneUnicodePropertyNameOrValue
pp$8.regexp_eatUnicodePropertyValueExpression = function(state) {
var start = state.pos;
// UnicodePropertyName `=` UnicodePropertyValue
if (this.regexp_eatUnicodePropertyName(state) && state.eat(0x3D /* = */)) {
var name = state.lastStringValue;
if (this.regexp_eatUnicodePropertyValue(state)) {
var value = state.lastStringValue;
this.regexp_validateUnicodePropertyNameAndValue(state, name, value);
return true
}
}
state.pos = start;
...function(state) {
var start = state.pos;
// UnicodePropertyName `=` UnicodePropertyValue
if (this.regexp_eatUnicodePropertyName(state) && state.eat(0x3D /* = */)) {
var name = state.lastStringValue;
if (this.regexp_eatUnicodePropertyValue(state)) {
var value = state.lastStringValue;
this.regexp_validateUnicodePropertyNameAndValue(state, name, value);
return true
}
}
state.pos = start;
// LoneUnicodePropertyNameOrValue
if (this.regexp_eatLoneUnicodePropertyNameOrValue(state)) {
var nameOrValue = state.lastStringValue;
this.regexp_validateUnicodePropertyNameOrValue(state, nameOrValue);
return true
}
return false
}...
this.options.ecmaVersion >= 9 &&
(ch === 0x50 /* P */ || ch === 0x70 /* p */)
) {
state.lastIntValue = -1;
state.advance();
if (
state.eat(0x7B /* { */) &&
this.regexp_eatUnicodePropertyValueExpression(state) &&
state.eat(0x7D /* } */)
) {
return true
}
state.raise("Invalid property name");
}
...function(state) {
if (state.current() === 0x30 /* 0 */ && !isDecimalDigit(state.lookahead())) {
state.lastIntValue = 0;
state.advance();
return true
}
return false
}...
};
// https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-CharacterEscape
pp$8.regexp_eatCharacterEscape = function(state) {
return (
this.regexp_eatControlEscape(state) ||
this.regexp_eatCControlLetter(state) ||
this.regexp_eatZero(state) ||
this.regexp_eatHexEscapeSequence(state) ||
this.regexp_eatRegExpUnicodeEscapeSequence(state) ||
(!state.switchU && this.regexp_eatLegacyOctalEscapeSequence(state)) ||
this.regexp_eatIdentityEscape(state)
)
};
pp$8.regexp_eatCControlLetter = function(state) {
...function(state) {
if (state.eat(0x3F /* ? */)) {
if (this.regexp_eatGroupName(state)) {
if (state.groupNames.indexOf(state.lastStringValue) !== -1) {
state.raise("Duplicate capture group name");
}
state.groupNames.push(state.lastStringValue);
return
}
state.raise("Invalid group");
}
}...
state.pos = start;
}
return false
};
pp$8.regexp_eatCapturingGroup = function(state) {
if (state.eat(0x28 /* ( */)) {
if (this.options.ecmaVersion >= 9) {
this.regexp_groupSpecifier(state);
} else if (state.current() === 0x3F /* ? */) {
state.raise("Invalid group");
}
this.regexp_disjunction(state);
if (state.eat(0x29 /* ) */)) {
state.numCapturingParens += 1;
return true
...function(state) {
state.pos = 0;
state.lastIntValue = 0;
state.lastStringValue = "";
state.lastAssertionIsQuantifiable = false;
state.numCapturingParens = 0;
state.maxBackReference = 0;
state.groupNames.length = 0;
state.backReferenceNames.length = 0;
this.regexp_disjunction(state);
if (state.pos !== state.source.length) {
// Make the same messages as V8.
if (state.eat(0x29 /* ) */)) {
state.raise("Unmatched ')'");
}
if (state.eat(0x5D /* [ */) || state.eat(0x7D /* } */)) {
state.raise("Lone quantifier brackets");
}
}
if (state.maxBackReference > state.numCapturingParens) {
state.raise("Invalid escape");
}
for (var i = 0, list = state.backReferenceNames; i < list.length; i += 1) {
var name = list[i];
if (state.groupNames.indexOf(name) === -1) {
state.raise("Invalid named capture referenced");
}
}
}...
/**
* Validate the pattern part of a given RegExpLiteral.
*
* @param {RegExpValidationState} state The state to validate RegExp.
* @returns {void}
*/
pp$8.validateRegExpPattern = function(state) {
this.regexp_pattern(state);
// The goal symbol for the parse is |Pattern[~U, ~N]|. If the result of
// parsing contains a |GroupName|, reparse with the goal symbol
// |Pattern[~U, +N]| and use this result instead. Throw a *SyntaxError*
// exception if _P_ did not conform to the grammar, if any elements of _P_
// were not matched by the parse, or if any Early Error conditions exist.
if (!state.switchN && this.options.ecmaVersion >= 9 && state.groupNames.length > 0) {
...function(state, name, value) {
if (!has(state.unicodeProperties.nonBinary, name))
{ state.raise("Invalid property name"); }
if (!state.unicodeProperties.nonBinary[name].test(value))
{ state.raise("Invalid property value"); }
}...
var start = state.pos;
// UnicodePropertyName `=` UnicodePropertyValue
if (this.regexp_eatUnicodePropertyName(state) && state.eat(0x3D /* = */)) {
var name = state.lastStringValue;
if (this.regexp_eatUnicodePropertyValue(state)) {
var value = state.lastStringValue;
this.regexp_validateUnicodePropertyNameAndValue(state, name, value);
return true
}
}
state.pos = start;
// LoneUnicodePropertyNameOrValue
if (this.regexp_eatLoneUnicodePropertyNameOrValue(state)) {
...function(state, nameOrValue) {
if (!state.unicodeProperties.binary.test(nameOrValue))
{ state.raise("Invalid property name"); }
}...
}
}
state.pos = start;
// LoneUnicodePropertyNameOrValue
if (this.regexp_eatLoneUnicodePropertyNameOrValue(state)) {
var nameOrValue = state.lastStringValue;
this.regexp_validateUnicodePropertyNameOrValue(state, nameOrValue);
return true
}
return false
};
pp$8.regexp_validateUnicodePropertyNameAndValue = function(state, name, value) {
if (!has(state.unicodeProperties.nonBinary, name))
{ state.raise("Invalid property name"); }
...function() {
if (!this.eat(types.semi) && !this.insertSemicolon()) { this.unexpected(); }
}...
pp$1.parseBreakContinueStatement = function(node, keyword) {
var isBreak = keyword === "break";
this.next();
if (this.eat(types.semi) || this.insertSemicolon()) { node.label = null; }
else if (this.type !== types.name) { this.unexpected(); }
else {
node.label = this.parseIdent();
this.semicolon();
}
// Verify that there is an actual destination to break or
// continue to.
var i = 0;
for (; i < this.labels.length; ++i) {
var lab = this.labels[i];
...function() {
return this.type.keyword === "var" ||
this.type.keyword === "const" ||
this.type.keyword === "class" ||
this.type.keyword === "function" ||
this.isLet() ||
this.isAsyncFunction()
}...
} else {
node.declaration = this.parseMaybeAssign();
this.semicolon();
}
return this.finishNode(node, "ExportDefaultDeclaration")
}
// export var|const|let|function|class ...
if (this.shouldParseExportStatement()) {
node.declaration = this.parseStatement(null);
if (node.declaration.type === "VariableDeclaration")
{ this.checkVariableExport(exports, node.declaration.declarations); }
else
{ this.checkExport(exports, node.declaration.id.name, node.declaration.id.start); }
node.specifiers = [];
node.source = null;
...function() {
var startLoc = this.options.onComment && this.curPosition();
var start = this.pos, end = this.input.indexOf("*/", this.pos += 2);
if (end === -1) { this.raise(this.pos - 2, "Unterminated comment"); }
this.pos = end + 2;
if (this.options.locations) {
lineBreakG.lastIndex = start;
var match;
while ((match = lineBreakG.exec(this.input)) && match.index < this.pos) {
++this.curLine;
this.lineStart = match.index + match[0].length;
}
}
if (this.options.onComment)
{ this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos,
startLoc, this.curPosition()); }
}...
++this.curLine;
this.lineStart = this.pos;
}
break
case 47: // '/'
switch (this.input.charCodeAt(this.pos + 1)) {
case 42: // '*'
this.skipBlockComment();
break
case 47:
this.skipLineComment(2);
break
default:
break loop
}
...function(startSkip) {
var start = this.pos;
var startLoc = this.options.onComment && this.curPosition();
var ch = this.input.charCodeAt(this.pos += startSkip);
while (this.pos < this.input.length && !isNewLine(ch)) {
ch = this.input.charCodeAt(++this.pos);
}
if (this.options.onComment)
{ this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos,
startLoc, this.curPosition()); }
}...
// Labels in scope.
this.labels = [];
// Thus-far undefined exports.
this.undefinedExports = {};
// If enabled, skip leading hashbang line.
if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!")
{ this.skipLineComment(2); }
// Scope tracking for duplicate variable names (see scope.js)
this.scopeStack = [];
this.enterScope(SCOPE_TOP);
// For RegExp validation
this.regexpState = null;
...function() {
loop: while (this.pos < this.input.length) {
var ch = this.input.charCodeAt(this.pos);
switch (ch) {
case 32: case 160: // ' '
++this.pos;
break
case 13:
if (this.input.charCodeAt(this.pos + 1) === 10) {
++this.pos;
}
case 10: case 8232: case 8233:
++this.pos;
if (this.options.locations) {
++this.curLine;
this.lineStart = this.pos;
}
break
case 47: // '/'
switch (this.input.charCodeAt(this.pos + 1)) {
case 42: // '*'
this.skipBlockComment();
break
case 47:
this.skipLineComment(2);
break
default:
break loop
}
break
default:
if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {
++this.pos;
} else {
break loop
}
}
}
}...
};
// Read a single token, updating the parser object's token-related
// properties.
pp$9.nextToken = function() {
var curContext = this.curContext();
if (!curContext || !curContext.preserveSpace) { this.skipSpace(); }
this.start = this.pos;
if (this.options.locations) { this.startLoc = this.curPosition(); }
if (this.pos >= this.input.length) { return this.finishToken(types.eof) }
if (curContext.override) { return curContext.override(this) }
else { this.readToken(this.fullCharCodeAtPos()); }
...function() {
return new Node(this, this.start, this.startLoc)
}...
// For RegExp validation
this.regexpState = null;
};
var prototypeAccessors = { inFunction: { configurable: true },inGenerator: { configurable: true },inAsync: { configurable: true },
allowSuper: { configurable: true },allowDirectSuper: { configurable: true },treatFunctionsAsVar: { configurable: true } };
Parser.prototype.parse = function parse () {
var node = this.options.program || this.startNode();
this.nextToken();
return this.parseTopLevel(node)
};
prototypeAccessors.inFunction.get = function () { return (this.currentVarScope().flags & SCOPE_FUNCTION) > 0 };
prototypeAccessors.inGenerator.get = function () { return (this.currentVarScope().flags & SCOPE_GENERATOR) > 0 };
prototypeAccessors.inAsync.get = function () { return (this.currentVarScope().flags & SCOPE_ASYNC) > 0 };
...function(pos, loc) {
return new Node(this, pos, loc)
}...
if ( noLineBreak === void 0 ) noLineBreak = false;
var start = this$1.start, startLoc = this$1.startLoc;
if (!this$1.eatContextual(k)) { return false }
if (this$1.type !== types.parenL && (!noLineBreak || !this$1.canInsertSemicolon())) { return true }
if (method.key) { this$1.unexpected(); }
method.computed = false;
method.key = this$1.startNodeAt(start, startLoc);
method.key.name = k;
this$1.finishNode(method.key, "Identifier");
return false
};
method.kind = "method";
method.static = tryContextual("static");
...function(start) {
for (;;) {
// Try to find string literal.
skipWhiteSpace.lastIndex = start;
start += skipWhiteSpace.exec(this.input)[0].length;
var match = literal.exec(this.input.slice(start));
if (!match) { return false }
if ((match[1] || match[2]) === "use strict") { return true }
start += match[0].length;
// Skip semicolon, if any.
skipWhiteSpace.lastIndex = start;
start += skipWhiteSpace.exec(this.input)[0].length;
if (this.input[start] === ";")
{ start++; }
}
}...
// context to predict whether a regular expression is allowed in a
// given position.
this.context = this.initialContext();
this.exprAllowed = true;
// Figure out if it's a module code.
this.inModule = options.sourceType === "module";
this.strict = this.inModule || this.strictDirective(this.pos);
// Used to signify the start of a potential arrow function
this.potentialArrowAt = -1;
// Positions to delayed-check that yield/await does not exist in default parameters.
this.yieldPos = this.awaitPos = this.awaitIdentPos = 0;
// Labels in scope.
...function(node, isBinding, refDestructuringErrors) {
if (this.options.ecmaVersion >= 6 && node) {
switch (node.type) {
case "Identifier":
if (this.inAsync && node.name === "await")
{ this.raise(node.start, "Cannot use 'await' as identifier inside an async function"); }
break
case "ObjectPattern":
case "ArrayPattern":
case "RestElement":
break
case "ObjectExpression":
node.type = "ObjectPattern";
if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
for (var i = 0, list = node.properties; i < list.length; i += 1) {
var prop = list[i];
this.toAssignable(prop, isBinding);
// Early error:
// AssignmentRestProperty[Yield, Await] :
// `...` DestructuringAssignmentTarget[Yield, Await]
//
// It is a Syntax Error if |DestructuringAssignmentTarget| is an |ArrayLiteral| or an |ObjectLiteral|.
if (
prop.type === "RestElement" &&
(prop.argument.type === "ArrayPattern" || prop.argument.type === "ObjectPattern")
) {
this.raise(prop.argument.start, "Unexpected token");
}
}
break
case "Property":
// AssignmentProperty has type === "Property"
if (node.kind !== "init") { this.raise(node.key.start, "Object pattern can't contain getter or setter"); }
this.toAssignable(node.value, isBinding);
break
case "ArrayExpression":
node.type = "ArrayPattern";
if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
this.toAssignableList(node.elements, isBinding);
break
case "SpreadElement":
node.type = "RestElement";
this.toAssignable(node.argument, isBinding);
if (node.argument.type === "AssignmentPattern")
{ this.raise(node.argument.start, "Rest elements cannot have a default value"); }
break
case "AssignmentExpression":
if (node.operator !== "=") { this.raise(node.left.end, "Only '=' operator can be used for specifying default value."); }
node.type = "AssignmentPattern";
delete node.operator;
this.toAssignable(node.left, isBinding);
// falls through to AssignmentPattern
case "AssignmentPattern":
break
case "ParenthesizedExpression":
this.toAssignable(node.expression, isBinding, refDestructuringErrors);
break
case "MemberExpression":
if (!isBinding) { break }
default:
this.raise(node.start, "Assigning to rvalue");
}
} else if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
return node
}...
var init = this.parseExpression(true, refDestructuringErrors);
if (this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
if (this.options.ecmaVersion >= 9) {
if (this.type === types._in) {
if (awaitAt > -1) { this.unexpected(awaitAt); }
} else { node.await = awaitAt > -1; }
}
this.toAssignable(init, false, refDestructuringErrors);
this.checkLVal(init);
return this.parseForIn(node, init)
} else {
this.checkExpressionErrors(refDestructuringErrors, true);
}
if (awaitAt > -1) { this.unexpected(awaitAt); }
return this.parseFor(node, init)
...function(exprList, isBinding) {
var end = exprList.length;
for (var i = 0; i < end; i++) {
var elt = exprList[i];
if (elt) { this.toAssignable(elt, isBinding); }
}
if (end) {
var last = exprList[end - 1];
if (this.options.ecmaVersion === 6 && isBinding && last && last.type === "RestElement" && last.argument.type !== "Identifier
")
{ this.unexpected(last.argument.start); }
}
return exprList
}...
if (node.kind !== "init") { this.raise(node.key.start, "Object pattern can't contain getter or setter"
;); }
this.toAssignable(node.value, isBinding);
break
case "ArrayExpression":
node.type = "ArrayPattern";
if (refDestructuringErrors) { this.checkPatternErrors(refDestructuringErrors, true); }
this.toAssignableList(node.elements, isBinding);
break
case "SpreadElement":
node.type = "RestElement";
this.toAssignable(node.argument, isBinding);
if (node.argument.type === "AssignmentPattern")
{ this.raise(node.argument.start, "Rest elements cannot have a default value"); }
...function(scope) {
return (scope.flags & SCOPE_FUNCTION) || !this.inModule && (scope.flags & SCOPE_TOP)
}...
};
prototypeAccessors.inFunction.get = function () { return (this.currentVarScope().flags & SCOPE_FUNCTION) > 0 };
prototypeAccessors.inGenerator.get = function () { return (this.currentVarScope().flags & SCOPE_GENERATOR) > 0 };
prototypeAccessors.inAsync.get = function () { return (this.currentVarScope().flags & SCOPE_ASYNC) > 0 };
prototypeAccessors.allowSuper.get = function () { return (this.currentThisScope().flags & SCOPE_SUPER) > 0 };
prototypeAccessors.allowDirectSuper.get = function () { return (this.currentThisScope().flags & SCOPE_DIRECT_SUPER) > 0 };
prototypeAccessors.treatFunctionsAsVar.get = function () { return this.treatFunctionsAsVarInScope
(this.currentScope()) };
// Switch to a getter for 7.0.0.
Parser.prototype.inNonArrowFunction = function inNonArrowFunction () { return (this.currentThisScope().flags & SCOPE_FUNCTION
) > 0 };
Parser.extend = function extend () {
var plugins = [], len = arguments.length;
while ( len-- ) plugins[ len ] = arguments[ len ];
...function() {
this.inTemplateElement = true;
try {
this.readTmplToken();
} catch (err) {
if (err === INVALID_TEMPLATE_ESCAPE_ERROR) {
this.readInvalidTemplateToken();
} else {
throw err
}
}
this.inTemplateElement = false;
}...
var types$1 = {
b_stat: new TokContext("{", false),
b_expr: new TokContext("{", true),
b_tmpl: new TokContext("${", false),
p_stat: new TokContext("(", false),
p_expr: new TokContext("(", true),
q_tmpl: new TokContext("`", true, true, function (p) { return p.tryReadTemplateToken
(); }),
f_stat: new TokContext("function", false),
f_expr: new TokContext("function", true),
f_expr_gen: new TokContext("function", true, false, null, true),
f_gen: new TokContext("function", false, false, null, true)
};
var pp$7 = Parser.prototype;
...function(pos) {
this.raise(pos != null ? pos : this.start, "Unexpected token");
}...
this.next();
return true
};
// Asserts that following token is given contextual keyword.
pp.expectContextual = function(name) {
if (!this.eatContextual(name)) { this.unexpected(); }
};
// Test whether a semicolon can be inserted at the current position.
pp.canInsertSemicolon = function() {
return this.type === types.eof ||
this.type === types.braceR ||
...function(prevType) {
var update, type = this.type;
if (type.keyword && prevType === types.dot)
{ this.exprAllowed = false; }
else if (update = type.updateContext)
{ update.call(this, prevType); }
else
{ this.exprAllowed = type.beforeExpr; }
}...
pp$9.finishToken = function(type, val) {
this.end = this.pos;
if (this.options.locations) { this.endLoc = this.curPosition(); }
var prevType = this.type;
this.type = type;
this.value = val;
this.updateContext(prevType);
};
// ### Token reading
// This is the function that is called to fetch the next token. It
// is somewhat obscure, because it works in character codes rather
// than characters, and because operator parsing has been inlined
...function(state) {
var validFlags = state.validFlags;
var flags = state.flags;
for (var i = 0; i < flags.length; i++) {
var flag = flags.charAt(i);
if (validFlags.indexOf(flag) === -1) {
this.raise(state.start, "Invalid regular expression flag");
}
if (flags.indexOf(flag, i + 1) > -1) {
this.raise(state.start, "Duplicate regular expression flag");
}
}
}...
var flagsStart = this.pos;
var flags = this.readWord1();
if (this.containsEsc) { this.unexpected(flagsStart); }
// Validate pattern
var state = this.regexpState || (this.regexpState = new RegExpValidationState(this));
state.reset(start, pattern, flags);
this.validateRegExpFlags(state);
this.validateRegExpPattern(state);
// Create Literal#value property value.
var value = null;
try {
value = new RegExp(pattern, flags);
} catch (e) {
...function(state) {
this.regexp_pattern(state);
// The goal symbol for the parse is |Pattern[~U, ~N]|. If the result of
// parsing contains a |GroupName|, reparse with the goal symbol
// |Pattern[~U, +N]| and use this result instead. Throw a *SyntaxError*
// exception if _P_ did not conform to the grammar, if any elements of _P_
// were not matched by the parse, or if any Early Error conditions exist.
if (!state.switchN && this.options.ecmaVersion >= 9 && state.groupNames.length > 0) {
state.switchN = true;
this.regexp_pattern(state);
}
}...
var flags = this.readWord1();
if (this.containsEsc) { this.unexpected(flagsStart); }
// Validate pattern
var state = this.regexpState || (this.regexpState = new RegExpValidationState(this));
state.reset(start, pattern, flags);
this.validateRegExpFlags(state);
this.validateRegExpPattern(state);
// Create Literal#value property value.
var value = null;
try {
value = new RegExp(pattern, flags);
} catch (e) {
// ESTree requires null if it failed to instantiate RegExp object.
...function Position(line, col) {
this.line = line;
this.column = col;
}n/a
function offset (n) {
return new Position(this.line, this.column + n)
}n/a
function Controller() { }n/a
function attachComments(tree, providedComments, tokens) {
// At first, we should calculate extended comment ranges.
var comments = [], comment, len, i, cursor;
if (!tree.range) {
throw new Error('attachComments needs range information');
}
// tokens array is empty, we attach comments to tree as 'leadingComments'
if (!tokens.length) {
if (providedComments.length) {
for (i = 0, len = providedComments.length; i < len; i += 1) {
comment = deepCopy(providedComments[i]);
comment.extendedRange = [0, tree.range[0]];
comments.push(comment);
}
tree.leadingComments = comments;
}
return tree;
}
for (i = 0, len = providedComments.length; i < len; i += 1) {
comments.push(extendCommentRange(deepCopy(providedComments[i]), tokens));
}
// This is based on John Freeman's implementation.
cursor = 0;
traverse(tree, {
enter: function (node) {
var comment;
while (cursor < comments.length) {
comment = comments[cursor];
if (comment.extendedRange[1] > node.range[0]) {
break;
}
if (comment.extendedRange[1] === node.range[0]) {
if (!node.leadingComments) {
node.leadingComments = [];
}
node.leadingComments.push(comment);
comments.splice(cursor, 1);
} else {
cursor += 1;
}
}
// already out of owned node
if (cursor === comments.length) {
return VisitorOption.Break;
}
if (comments[cursor].extendedRange[0] > node.range[1]) {
return VisitorOption.Skip;
}
}
});
cursor = 0;
traverse(tree, {
leave: function (node) {
var comment;
while (cursor < comments.length) {
comment = comments[cursor];
if (node.range[1] < comment.extendedRange[0]) {
break;
}
if (node.range[1] === comment.extendedRange[0]) {
if (!node.trailingComments) {
node.trailingComments = [];
}
node.trailingComments.push(comment);
comments.splice(cursor, 1);
} else {
cursor += 1;
}
}
// already out of owned node
if (cursor === comments.length) {
return VisitorOption.Break;
}
if (comments[cursor].extendedRange[0] > node.range[1]) {
return VisitorOption.Skip;
}
}
});
return tree;
}n/a
cloneEnvironment = function () { return clone({}); }n/a
function replace(root, visitor) {
var controller = new Controller();
return controller.replace(root, visitor);
}...
recursive: true
});
// re-write pathname
fs.writeFileSync(pathname, data);
success = true;
}
if (success && msg) {
console.error(msg.replace("{{pathname}}", pathname));
}
return success;
};
local.identity = function (val) {
/*
* this function will return <val>
*/
...function traverse(root, visitor) {
var controller = new Controller();
return controller.traverse(root, visitor);
}...
}
return outer.root;
};
function traverse(root, visitor) {
var controller = new Controller();
return controller.traverse(root, visitor);
}
function replace(root, visitor) {
var controller = new Controller();
return controller.replace(root, visitor);
}
...function Controller() { }n/a
function __execute(callback, element) {
var previous, result;
result = undefined;
previous = this.__current;
this.__current = element;
this.__state = null;
if (callback) {
result = callback.call(this, element.node, this.__leavelist[this.__leavelist.length - 1].node);
}
this.__current = previous;
return result;
}...
while (worklist.length) {
element = worklist.pop();
if (element === sentinel) {
element = leavelist.pop();
ret = this.__execute(visitor.leave, element);
if (this.__state === BREAK || ret === BREAK) {
return;
}
continue;
}
...function(root, visitor) {
this.visitor = visitor;
this.root = root;
this.__worklist = [];
this.__leavelist = [];
this.__current = null;
this.__state = null;
this.__fallback = null;
if (visitor.fallback === 'iteration') {
this.__fallback = objectKeys;
} else if (typeof visitor.fallback === 'function') {
this.__fallback = visitor.fallback;
}
this.__keys = VisitorKeys;
if (visitor.keys) {
this.__keys = extend(objectCreate(this.__keys), visitor.keys);
}
}...
key,
current,
current2,
candidates,
candidate,
sentinel;
this.__initialize(root, visitor);
sentinel = {};
// reference
worklist = this.__worklist;
leavelist = this.__leavelist;
...break = function () {
this.notify(BREAK);
}n/a
function current() {
return this.__current.node;
}...
};
RegExpValidationState.prototype.advance = function advance () {
this.pos = this.nextIndex(this.pos);
};
RegExpValidationState.prototype.eat = function eat (ch) {
if (this.current() === ch) {
this.advance();
return true
}
return false
};
function codePointToString(ch) {
...function notify(flag) {
this.__state = flag;
}...
Controller.prototype.notify = function notify(flag) {
this.__state = flag;
};
// API:
// skip child nodes of current node
Controller.prototype.skip = function () {
this.notify(SKIP);
};
// API:
// break traversals
Controller.prototype['break'] = function () {
this.notify(BREAK);
};
...function parents() {
var i, iz, result;
// first node is sentinel
result = [];
for (i = 1, iz = this.__leavelist.length; i < iz; ++i) {
result.push(this.__leavelist[i].node);
}
return result;
}n/a
function path() {
var i, iz, j, jz, result, element;
function addToPath(result, path) {
if (isArray(path)) {
for (j = 0, jz = path.length; j < jz; ++j) {
result.push(path[j]);
}
} else {
result.push(path);
}
}
// root node
if (!this.__current.path) {
return null;
}
// first node is sentinel, second node is root element
result = [];
for (i = 2, iz = this.__leavelist.length; i < iz; ++i) {
element = this.__leavelist[i];
addToPath(result, element.path);
}
addToPath(result, this.__current.path);
return result;
}n/a
remove = function () {
this.notify(REMOVE);
}...
function removeElem(element) {
var i,
key,
nextElem,
parent;
if (element.ref.remove()) {
// When the reference is an element of an array.
key = element.ref.key;
parent = element.ref.parent;
// If removed from array, then decrease following items' keys.
i = worklist.length;
while (i--) {
...function replace(root, visitor) {
var worklist,
leavelist,
node,
nodeType,
target,
element,
current,
current2,
candidates,
candidate,
sentinel,
outer,
key;
function removeElem(element) {
var i,
key,
nextElem,
parent;
if (element.ref.remove()) {
// When the reference is an element of an array.
key = element.ref.key;
parent = element.ref.parent;
// If removed from array, then decrease following items' keys.
i = worklist.length;
while (i--) {
nextElem = worklist[i];
if (nextElem.ref && nextElem.ref.parent === parent) {
if (nextElem.ref.key < key) {
break;
}
--nextElem.ref.key;
}
}
}
}
this.__initialize(root, visitor);
sentinel = {};
// reference
worklist = this.__worklist;
leavelist = this.__leavelist;
// initialize
outer = {
root: root
};
element = new Element(root, null, null, new Reference(outer, 'root'));
worklist.push(element);
leavelist.push(element);
while (worklist.length) {
element = worklist.pop();
if (element === sentinel) {
element = leavelist.pop();
target = this.__execute(visitor.leave, element);
// node may be replaced with null,
// so distinguish between undefined and null in this place
if (target !== undefined && target !== BREAK && target !== SKIP && target !== REMOVE) {
// replace
element.ref.replace(target);
}
if (this.__state === REMOVE || target === REMOVE) {
removeElem(element);
}
if (this.__state === BREAK || target === BREAK) {
return outer.root;
}
continue;
}
target = this.__execute(visitor.enter, element);
// node may be replaced with null,
// so distinguish between undefined and null in this place
if (target !== undefined && target !== BREAK && target !== SKIP && target !== REMOVE) {
// replace
element.ref.replace(target);
element.node = target;
}
if (this.__state === REMOVE || target === REMOVE) {
removeElem(element);
element.node = null;
}
if (this.__state === BREAK || target === BREAK) {
return outer.root;
}
// node may be null
node = element.node;
if (!node) {
continue;
}
worklist.push(sentinel);
leavelist.push(element);
if (this.__state === SKIP || target === SKIP) {
continue;
}
nodeType = node.type || element.wrap;
candidates = this.__keys[nodeType];
if (!candidates) {
if (this.__fallback) {
candidates = this.__fallback(node);
} else {
throw new Error('Unknown node type ' + nodeType + '.');
}
}
current = candidates.length;
while ((current -= 1) >= 0) {
key = candidates[current];
candidate = node[key];
if (!candidate) {
continue;
}
if (isArray(candidate)) {
current2 = candidate.length;
while ((current2 -= 1) >= 0) {
if (!candidate[current2]) {
continue;
}
if (isProperty(nodeType, candidates[current])) {
element = new Element(candidate[current2], [key, current2], 'Property', new Reference(candidate, current2
));
} else if (isNode(candidat......
recursive: true
});
// re-write pathname
fs.writeFileSync(pathname, data);
success = true;
}
if (success && msg) {
console.error(msg.replace("{{pathname}}", pathname));
}
return success;
};
local.identity = function (val) {
/*
* this function will return <val>
*/
...skip = function () {
this.notify(SKIP);
}n/a
function traverse(root, visitor) {
var worklist,
leavelist,
element,
node,
nodeType,
ret,
key,
current,
current2,
candidates,
candidate,
sentinel;
this.__initialize(root, visitor);
sentinel = {};
// reference
worklist = this.__worklist;
leavelist = this.__leavelist;
// initialize
worklist.push(new Element(root, null, null, null));
leavelist.push(new Element(null, null, null, null));
while (worklist.length) {
element = worklist.pop();
if (element === sentinel) {
element = leavelist.pop();
ret = this.__execute(visitor.leave, element);
if (this.__state === BREAK || ret === BREAK) {
return;
}
continue;
}
if (element.node) {
ret = this.__execute(visitor.enter, element);
if (this.__state === BREAK || ret === BREAK) {
return;
}
worklist.push(sentinel);
leavelist.push(element);
if (this.__state === SKIP || ret === SKIP) {
continue;
}
node = element.node;
nodeType = node.type || element.wrap;
candidates = this.__keys[nodeType];
if (!candidates) {
if (this.__fallback) {
candidates = this.__fallback(node);
} else {
throw new Error('Unknown node type ' + nodeType + '.');
}
}
current = candidates.length;
while ((current -= 1) >= 0) {
key = candidates[current];
candidate = node[key];
if (!candidate) {
continue;
}
if (isArray(candidate)) {
current2 = candidate.length;
while ((current2 -= 1) >= 0) {
if (!candidate[current2]) {
continue;
}
if (isProperty(nodeType, candidates[current])) {
element = new Element(candidate[current2], [key, current2], 'Property', null);
} else if (isNode(candidate[current2])) {
element = new Element(candidate[current2], [key, current2], null, null);
} else {
continue;
}
worklist.push(element);
}
} else if (isNode(candidate)) {
worklist.push(new Element(candidate, key, null, null));
}
}
}
}
}...
}
return outer.root;
};
function traverse(root, visitor) {
var controller = new Controller();
return controller.traverse(root, visitor);
}
function replace(root, visitor) {
var controller = new Controller();
return controller.replace(root, visitor);
}
...type = function () {
var node = this.current();
return node.type || this.__current.wrap;
}n/a
function _debugEnd() { [native code] }n/a
function _debugProcess() { [native code] }n/a
(er, fromPromise) => {
// It's possible that defaultTriggerAsyncId was set for a constructor
// call that threw and was never cleared. So clear it now.
clearDefaultTriggerAsyncId();
// If diagnostic reporting is enabled, call into its handler to see
// whether it is interested in handling the situation.
// Ignore if the error is scoped inside a domain.
// use == in the checks as we want to allow for null and undefined
if (er == null || er.domain == null) {
try {
const report = internalBinding('report');
if (report != null && report.shouldReportOnUncaughtException()) {
report.writeReport(er ? er.message : 'Exception',
'Exception',
null,
er ? er.stack : undefined);
}
} catch {} // Ignore the exception. Diagnostic reporting is unavailable.
}
const type = fromPromise ? 'unhandledRejection' : 'uncaughtException';
process.emit('uncaughtExceptionMonitor', er, type);
if (exceptionHandlerState.captureFn !== null) {
exceptionHandlerState.captureFn(er);
} else if (!process.emit('uncaughtException', er, type)) {
// If someone handled it, then great. Otherwise, die in C++ land
// since that means that we'll exit the process, emit the 'exit' event.
try {
if (!process._exiting) {
process._exiting = true;
process.exitCode = 1;
process.emit('exit', 1);
}
} catch {
// Nothing to be done about it at this point.
}
return false;
}
// If we handled an error, then make sure any ticks get processed
// by ensuring that the next Immediate cycle isn't empty.
require('timers').setImmediate(noop);
// Emit the after() hooks now that the exception has been handled.
if (afterHooksExist()) {
do {
emitAfter(executionAsyncId());
} while (hasAsyncIdStack());
// Or completely empty the id stack.
} else {
clearAsyncIdStack();
}
return true;
}n/a
function _getActiveHandles() { [native code] }n/a
function _getActiveRequests() { [native code] }n/a
function _kill() { [native code] }n/a
function _linkedBinding(module) {
module = String(module);
let mod = bindingObj[module];
if (typeof mod !== 'object')
mod = bindingObj[module] = getLinkedBinding(module);
return mod;
}n/a
function _rawDebug(...args) {
binding._rawDebug(format.apply(null, args));
}n/a
function _startProfilerIdleNotifier() { [native code] }n/a
function _stopProfilerIdleNotifier() { [native code] }n/a
function runNextTicks() {
if (!hasTickScheduled() && !hasRejectionToWarn())
runMicrotasks();
if (!hasTickScheduled() && !hasRejectionToWarn())
return;
processTicksAndRejections();
}n/a
function abort() { [native code] }n/a
function deprecated(...args) {
if (!warned) {
warned = true;
if (code !== undefined) {
if (!codesWarned.has(code)) {
process.emitWarning(msg, 'DeprecationWarning', code, deprecated);
codesWarned.add(code);
}
} else {
process.emitWarning(msg, 'DeprecationWarning', deprecated);
}
}
if (new.target) {
return ReflectConstruct(fn, args, new.target);
}
return fn.apply(this, args);
}...
}
static defaultMatrix() {
return new THREE.Matrix4();
}
}
var aa = new SkinnedMesh();
aa.update();
console.assert(aa.boneCount === 0);
aa.matrixType = 'defaultMatrix';
console.assert(aa.matrixType === undefined);
});
tryCatch(function () {
var handler, theProtoObj;
var obj = {
// __proto__
...function binding(module) {
module = String(module);
// Deprecated specific process.binding() modules, but not all, allow
// selective fallback to internalBinding for the deprecated ones.
if (internalBindingWhitelist.has(module)) {
return internalBinding(module);
}
// eslint-disable-next-line no-restricted-syntax
throw new Error(`No such module: ${module}`);
}n/a
function wrappedChdir(directory) {
validateString(directory, 'directory');
rawMethods.chdir(directory);
// Mark cache that it requires an update.
cachedCwd = '';
}n/a
function cpuUsage(prevValue) {
// If a previous value was passed in, ensure it has the correct shape.
if (prevValue) {
if (!previousValueIsValid(prevValue.user)) {
if (typeof prevValue !== 'object')
throw new ERR_INVALID_ARG_TYPE('prevValue', 'object', prevValue);
if (typeof prevValue.user !== 'number') {
throw new ERR_INVALID_ARG_TYPE('prevValue.user',
'number', prevValue.user);
}
throw new ERR_INVALID_OPT_VALUE.RangeError('prevValue.user',
prevValue.user);
}
if (!previousValueIsValid(prevValue.system)) {
if (typeof prevValue.system !== 'number') {
throw new ERR_INVALID_ARG_TYPE('prevValue.system',
'number', prevValue.system);
}
throw new ERR_INVALID_OPT_VALUE.RangeError('prevValue.system',
prevValue.system);
}
}
// Call the native function to get the current values.
const errmsg = _cpuUsage(cpuValues);
if (errmsg) {
throw new ERR_CPU_USAGE(errmsg);
}
// If a previous value was passed in, return diff of current from previous.
if (prevValue) {
return {
user: cpuValues[0] - prevValue.user,
system: cpuValues[1] - prevValue.system
};
}
// If no previous value passed in, return current value.
return {
user: cpuValues[0],
system: cpuValues[1]
};
}n/a
function wrappedCwd() {
if (cachedCwd === '')
cachedCwd = rawMethods.cwd();
return cachedCwd;
}...
[](https://kaizhu256.github.io/node-istanbul-lite/build..beta..travis-ci.org/apidoc.html)
#### cli help
#### changelog 2020.5.31
- npm publish 2020.5.31
- replace process.cwd() with path.resolve()
- replace function fsReadFileOrEmptyStringSync with fsReadFileOrDefaultSync
- remove dependency to file lib.swgg.js
- istanbul - inline function templateRender
- none
#### todo
- istanbul - inline function templateRender
...function dlopen() { [native code] }n/a
function emitWarning(warning, type, code, ctor) {
let detail;
if (type !== null && typeof type === 'object' && !ArrayIsArray(type)) {
ctor = type.ctor;
code = type.code;
if (typeof type.detail === 'string')
detail = type.detail;
type = type.type || 'Warning';
} else if (typeof type === 'function') {
ctor = type;
code = undefined;
type = 'Warning';
}
if (type !== undefined && typeof type !== 'string') {
throw new ERR_INVALID_ARG_TYPE('type', 'string', type);
}
if (typeof code === 'function') {
ctor = code;
code = undefined;
} else if (code !== undefined && typeof code !== 'string') {
throw new ERR_INVALID_ARG_TYPE('code', 'string', code);
}
if (typeof warning === 'string') {
warning = createWarningObject(warning, type, code, ctor, detail);
} else if (!(warning instanceof Error)) {
throw new ERR_INVALID_ARG_TYPE('warning', ['Error', 'string'], warning);
}
if (warning.name === 'DeprecationWarning') {
if (process.noDeprecation)
return;
if (process.throwDeprecation)
throw warning;
}
process.nextTick(doEmitWarning, warning);
}n/a
exit = function () {
/*
* this function will do nothing
*/
return;
}n/a
function getegid() { [native code] }n/a
function geteuid() { [native code] }n/a
function getgid() { [native code] }n/a
function getgroups() { [native code] }n/a
function getuid() { [native code] }n/a
function hasUncaughtExceptionCaptureCallback() {
return exceptionHandlerState.captureFn !== null;
}n/a
function hrtime(time) {
_hrtime(hrValues);
if (time !== undefined) {
if (!ArrayIsArray(time)) {
throw new ERR_INVALID_ARG_TYPE('time', 'Array', time);
}
if (time.length !== 2) {
throw new ERR_OUT_OF_RANGE('time', 2, time.length);
}
const sec = (hrValues[0] * 0x100000000 + hrValues[1]) - time[0];
const nsec = hrValues[2] - time[1];
const needsBorrow = nsec < 0;
return [needsBorrow ? sec - 1 : sec, needsBorrow ? nsec + 1e9 : nsec];
}
return [
hrValues[0] * 0x100000000 + hrValues[1],
hrValues[2]
];
}n/a
function initgroups(user, extraGroup) {
validateId(user, 'user');
validateId(extraGroup, 'extraGroup');
// Result is 0 on success, 1 if user is unknown, 2 if group is unknown.
const result = _initgroups(user, extraGroup);
if (result === 1) {
throw new ERR_UNKNOWN_CREDENTIAL('User', user);
} else if (result === 2) {
throw new ERR_UNKNOWN_CREDENTIAL('Group', extraGroup);
}
}n/a
function kill(pid, sig) {
let err;
// eslint-disable-next-line eqeqeq
if (pid != (pid | 0)) {
throw new ERR_INVALID_ARG_TYPE('pid', 'number', pid);
}
// Preserve null signal
if (sig === (sig | 0)) {
// XXX(joyeecheung): we have to use process._kill here because
// it's monkey-patched by tests.
err = process._kill(pid, sig);
} else {
sig = sig || 'SIGTERM';
if (constants[sig]) {
err = process._kill(pid, constants[sig]);
} else {
throw new ERR_UNKNOWN_SIGNAL(sig);
}
}
if (err)
throw errnoException(err, 'kill');
return true;
}n/a
function memoryUsage() {
_memoryUsage(memValues);
return {
rss: memValues[0],
heapTotal: memValues[1],
heapUsed: memValues[2],
external: memValues[3],
arrayBuffers: memValues[4]
};
}n/a
function nextTick(callback) {
if (typeof callback !== 'function')
throw new ERR_INVALID_CALLBACK(callback);
if (process._exiting)
return;
let args;
switch (arguments.length) {
case 1: break;
case 2: args = [arguments[1]]; break;
case 3: args = [arguments[1], arguments[2]]; break;
case 4: args = [arguments[1], arguments[2], arguments[3]]; break;
default:
args = new Array(arguments.length - 1);
for (let i = 1; i < arguments.length; i++)
args[i - 1] = arguments[i];
}
if (queue.isEmpty())
setHasTickScheduled(true);
const asyncId = newAsyncId();
const triggerAsyncId = getDefaultTriggerAsyncId();
const tickObject = {
[async_id_symbol]: asyncId,
[trigger_async_id_symbol]: triggerAsyncId,
callback,
args
};
if (initHooksExist())
emitInit(asyncId, 'TickObject', triggerAsyncId, tickObject);
queue.push(tickObject);
}n/a
function() {
process.stdin.resume();
return process.stdin;
}n/a
function reallyExit() { [native code] }n/a
function resourceUsage() {
_resourceUsage(resourceValues);
return {
userCPUTime: resourceValues[0],
systemCPUTime: resourceValues[1],
maxRSS: resourceValues[2],
sharedMemorySize: resourceValues[3],
unsharedDataSize: resourceValues[4],
unsharedStackSize: resourceValues[5],
minorPageFault: resourceValues[6],
majorPageFault: resourceValues[7],
swappedOut: resourceValues[8],
fsRead: resourceValues[9],
fsWrite: resourceValues[10],
ipcSent: resourceValues[11],
ipcReceived: resourceValues[12],
signalsCount: resourceValues[13],
voluntaryContextSwitches: resourceValues[14],
involuntaryContextSwitches: resourceValues[15]
};
}n/a
function(fn) {
const err = new ERR_DOMAIN_CANNOT_SET_UNCAUGHT_EXCEPTION_CAPTURE();
err.stack = err.stack + '\n' + '-'.repeat(40) + '\n' + domainRequireStack;
throw err;
}n/a
function(id) {
validateId(id, 'id');
// Result is 0 on success, 1 if credential is unknown.
const result = method(id);
if (result === 1) {
throw new ERR_UNKNOWN_CREDENTIAL(type, id);
}
}n/a
function(id) {
validateId(id, 'id');
// Result is 0 on success, 1 if credential is unknown.
const result = method(id);
if (result === 1) {
throw new ERR_UNKNOWN_CREDENTIAL(type, id);
}
}n/a
function(id) {
validateId(id, 'id');
// Result is 0 on success, 1 if credential is unknown.
const result = method(id);
if (result === 1) {
throw new ERR_UNKNOWN_CREDENTIAL(type, id);
}
}n/a
function setgroups(groups) {
if (!ArrayIsArray(groups)) {
throw new ERR_INVALID_ARG_TYPE('groups', 'Array', groups);
}
for (let i = 0; i < groups.length; i++) {
validateId(groups[i], `groups[${i}]`);
}
// Result is 0 on success. A positive integer indicates that the
// corresponding group was not found.
const result = _setgroups(groups);
if (result > 0) {
throw new ERR_UNKNOWN_CREDENTIAL('Group', groups[result - 1]);
}
}n/a
function(id) {
validateId(id, 'id');
// Result is 0 on success, 1 if credential is unknown.
const result = method(id);
if (result === 1) {
throw new ERR_UNKNOWN_CREDENTIAL(type, id);
}
}n/a
function wrappedUmask(mask) {
if (mask !== undefined) {
mask = parseFileMode(mask, 'mask');
}
return rawMethods.umask(mask);
}n/a
function uptime() { [native code] }n/a
function onWarning(warning) {
if (!(warning instanceof Error)) return;
const isDeprecation = warning.name === 'DeprecationWarning';
if (isDeprecation && process.noDeprecation) return;
const trace = process.traceProcessWarnings ||
(isDeprecation && process.traceDeprecation);
let msg = `(${process.release.name}:${process.pid}) `;
if (warning.code)
msg += `[${warning.code}] `;
if (trace && warning.stack) {
msg += `${warning.stack}`;
} else {
const toString =
typeof warning.toString === 'function' ?
warning.toString : Error.prototype.toString;
msg += `${toString.apply(warning)}`;
}
if (typeof warning.detail === 'string') {
msg += `\n${warning.detail}`;
}
if (!trace && !traceWarningHelperShown) {
const flag = isDeprecation ? '--trace-deprecation' : '--trace-warnings';
const argv0 = require('path').basename(process.argv0 || 'node', '.exe');
msg += `\n(Use \`${argv0} ${flag} ...\` to show where the warning ` +
'was created)';
traceWarningHelperShown = true;
}
const warningFile = lazyOption();
if (warningFile) {
return writeToFile(msg);
}
writeOut(msg);
}n/a
function hrtime(time) {
_hrtime(hrValues);
if (time !== undefined) {
if (!ArrayIsArray(time)) {
throw new ERR_INVALID_ARG_TYPE('time', 'Array', time);
}
if (time.length !== 2) {
throw new ERR_OUT_OF_RANGE('time', 2, time.length);
}
const sec = (hrValues[0] * 0x100000000 + hrValues[1]) - time[0];
const nsec = hrValues[2] - time[1];
const needsBorrow = nsec < 0;
return [needsBorrow ? sec - 1 : sec, needsBorrow ? nsec + 1e9 : nsec];
}
return [
hrValues[0] * 0x100000000 + hrValues[1],
hrValues[2]
];
}n/a
function hrtimeBigInt() {
_hrtimeBigInt(hrBigintValues);
return hrBigintValues[0];
}n/a
function dummyDestroy(err, cb) {
cb(err);
// We need to emit 'close' anyway so that the closing
// of the stream is observable. We just make sure we
// are not going to do it twice.
// The 'close' event is needed so that finished and
// pipeline work correctly.
if (!this._writableState.emitClose) {
process.nextTick(() => {
this.emit('close');
});
}
}n/a
function destroy(err, cb) {
const r = this._readableState;
const w = this._writableState;
if ((w && w.destroyed) || (r && r.destroyed)) {
if (typeof cb === 'function') {
cb();
}
return this;
}
if (err) {
if (w) {
w.errored = true;
}
if (r) {
r.errored = true;
}
}
// We set destroyed to true before firing error callbacks in order
// to make it re-entrance safe in case destroy() is called within callbacks
if (w) {
w.destroyed = true;
}
if (r) {
r.destroyed = true;
}
this._destroy(err || null, (err) => {
if (err) {
if (w) {
w.errored = true;
}
if (r) {
r.errored = true;
}
}
if (w) {
w.closed = true;
}
if (r) {
r.closed = true;
}
if (typeof cb === 'function') {
cb(err);
}
if (err) {
process.nextTick(emitErrorCloseNT, this, err);
} else {
process.nextTick(emitCloseNT, this);
}
});
return this;
}n/a
function dummyDestroy(err, cb) {
cb(err);
// We need to emit 'close' anyway so that the closing
// of the stream is observable. We just make sure we
// are not going to do it twice.
// The 'close' event is needed so that finished and
// pipeline work correctly.
if (!this._writableState.emitClose) {
process.nextTick(() => {
this.emit('close');
});
}
}n/a
function destroy(err, cb) {
const r = this._readableState;
const w = this._writableState;
if ((w && w.destroyed) || (r && r.destroyed)) {
if (typeof cb === 'function') {
cb();
}
return this;
}
if (err) {
if (w) {
w.errored = true;
}
if (r) {
r.errored = true;
}
}
// We set destroyed to true before firing error callbacks in order
// to make it re-entrance safe in case destroy() is called within callbacks
if (w) {
w.destroyed = true;
}
if (r) {
r.destroyed = true;
}
this._destroy(err || null, (err) => {
if (err) {
if (w) {
w.errored = true;
}
if (r) {
r.errored = true;
}
}
if (w) {
w.closed = true;
}
if (r) {
r.closed = true;
}
if (typeof cb === 'function') {
cb(err);
}
if (err) {
process.nextTick(emitErrorCloseNT, this, err);
} else {
process.nextTick(emitCloseNT, this);
}
});
return this;
}n/a
function require(path) {
return mod.require(path);
}...
cwd: function () {
return "";
},
env: {}
};
require = function (key) {
try {
return local["__istanbul_" + key] || local[key] || local.require(key);
} catch (ignore) {}
};
local["./package.json"] = {};
// mock module path
local.__istanbul_path = local.path || {
dirname: function (file) {
return file.replace((
...function resolve(request, options) {
validateString(request, 'request');
return Module._resolveFilename(request, mod, false, options);
}...
let fs;
// do nothing if module does not exist
try {
fs = require("fs");
} catch (ignore) {
return dflt;
}
pathname = require("path").resolve(pathname);
// try to read pathname
try {
return (
type === "json"
? JSON.parse(fs.readFileSync(pathname, "utf8"))
: fs.readFileSync(pathname, type)
);
...function resolve(request, options) {
validateString(request, 'request');
return Module._resolveFilename(request, mod, false, options);
}...
let fs;
// do nothing if module does not exist
try {
fs = require("fs");
} catch (ignore) {
return dflt;
}
pathname = require("path").resolve(pathname);
// try to read pathname
try {
return (
type === "json"
? JSON.parse(fs.readFileSync(pathname, "utf8"))
: fs.readFileSync(pathname, type)
);
...function paths(request) {
validateString(request, 'request');
return Module._resolveLookupPaths(request, mod);
}n/a