| // clang-format off |
| (function (global, factory) { |
| typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('acorn')) : |
| typeof define === 'function' && define.amd ? define(['exports', 'acorn'], factory) : |
| (global = global || self, factory((global.acorn = global.acorn || {}, global.acorn.loose = {}), global.acorn)); |
| }(this, function (exports, acorn) { 'use strict'; |
| |
| function noop() {} |
| |
| var LooseParser = function LooseParser(input, options) { |
| if ( options === void 0 ) options = {}; |
| |
| this.toks = this.constructor.BaseParser.tokenizer(input, options); |
| this.options = this.toks.options; |
| this.input = this.toks.input; |
| this.tok = this.last = {type: acorn.tokTypes.eof, start: 0, end: 0}; |
| this.tok.validateRegExpFlags = noop; |
| this.tok.validateRegExpPattern = noop; |
| if (this.options.locations) { |
| var here = this.toks.curPosition(); |
| this.tok.loc = new acorn.SourceLocation(this.toks, here, here); |
| } |
| this.ahead = []; // Tokens ahead |
| this.context = []; // Indentation contexted |
| this.curIndent = 0; |
| this.curLineStart = 0; |
| this.nextLineStart = this.lineEnd(this.curLineStart) + 1; |
| this.inAsync = false; |
| this.inFunction = false; |
| }; |
| |
| LooseParser.prototype.startNode = function startNode () { |
| return new acorn.Node(this.toks, this.tok.start, this.options.locations ? this.tok.loc.start : null) |
| }; |
| |
| LooseParser.prototype.storeCurrentPos = function storeCurrentPos () { |
| return this.options.locations ? [this.tok.start, this.tok.loc.start] : this.tok.start |
| }; |
| |
| LooseParser.prototype.startNodeAt = function startNodeAt (pos) { |
| if (this.options.locations) { |
| return new acorn.Node(this.toks, pos[0], pos[1]) |
| } else { |
| return new acorn.Node(this.toks, pos) |
| } |
| }; |
| |
| LooseParser.prototype.finishNode = function finishNode (node, type) { |
| node.type = type; |
| node.end = this.last.end; |
| if (this.options.locations) |
| { node.loc.end = this.last.loc.end; } |
| if (this.options.ranges) |
| { node.range[1] = this.last.end; } |
| return node |
| }; |
| |
| LooseParser.prototype.dummyNode = function dummyNode (type) { |
| var dummy = this.startNode(); |
| dummy.type = type; |
| dummy.end = dummy.start; |
| if (this.options.locations) |
| { dummy.loc.end = dummy.loc.start; } |
| if (this.options.ranges) |
| { dummy.range[1] = dummy.start; } |
| this.last = {type: acorn.tokTypes.name, start: dummy.start, end: dummy.start, loc: dummy.loc}; |
| return dummy |
| }; |
| |
| LooseParser.prototype.dummyIdent = function dummyIdent () { |
| var dummy = this.dummyNode("Identifier"); |
| dummy.name = "✖"; |
| return dummy |
| }; |
| |
| LooseParser.prototype.dummyString = function dummyString () { |
| var dummy = this.dummyNode("Literal"); |
| dummy.value = dummy.raw = "✖"; |
| return dummy |
| }; |
| |
| LooseParser.prototype.eat = function eat (type) { |
| if (this.tok.type === type) { |
| this.next(); |
| return true |
| } else { |
| return false |
| } |
| }; |
| |
| LooseParser.prototype.isContextual = function isContextual (name) { |
| return this.tok.type === acorn.tokTypes.name && this.tok.value === name |
| }; |
| |
| LooseParser.prototype.eatContextual = function eatContextual (name) { |
| return this.tok.value === name && this.eat(acorn.tokTypes.name) |
| }; |
| |
| LooseParser.prototype.canInsertSemicolon = function canInsertSemicolon () { |
| return this.tok.type === acorn.tokTypes.eof || this.tok.type === acorn.tokTypes.braceR || |
| acorn.lineBreak.test(this.input.slice(this.last.end, this.tok.start)) |
| }; |
| |
| LooseParser.prototype.semicolon = function semicolon () { |
| return this.eat(acorn.tokTypes.semi) |
| }; |
| |
| LooseParser.prototype.expect = function expect (type) { |
| if (this.eat(type)) { return true } |
| for (var i = 1; i <= 2; i++) { |
| if (this.lookAhead(i).type === type) { |
| for (var j = 0; j < i; j++) { this.next(); } |
| return true |
| } |
| } |
| }; |
| |
| LooseParser.prototype.pushCx = function pushCx () { |
| this.context.push(this.curIndent); |
| }; |
| |
| LooseParser.prototype.popCx = function popCx () { |
| this.curIndent = this.context.pop(); |
| }; |
| |
| LooseParser.prototype.lineEnd = function lineEnd (pos) { |
| while (pos < this.input.length && !acorn.isNewLine(this.input.charCodeAt(pos))) { ++pos; } |
| return pos |
| }; |
| |
| LooseParser.prototype.indentationAfter = function indentationAfter (pos) { |
| for (var count = 0;; ++pos) { |
| var ch = this.input.charCodeAt(pos); |
| if (ch === 32) { ++count; } |
| else if (ch === 9) { count += this.options.tabSize; } |
| else { return count } |
| } |
| }; |
| |
| LooseParser.prototype.closes = function closes (closeTok, indent, line, blockHeuristic) { |
| if (this.tok.type === closeTok || this.tok.type === acorn.tokTypes.eof) { return true } |
| return line !== this.curLineStart && this.curIndent < indent && this.tokenStartsLine() && |
| (!blockHeuristic || this.nextLineStart >= this.input.length || |
| this.indentationAfter(this.nextLineStart) < indent) |
| }; |
| |
| LooseParser.prototype.tokenStartsLine = function tokenStartsLine () { |
| for (var p = this.tok.start - 1; p >= this.curLineStart; --p) { |
| var ch = this.input.charCodeAt(p); |
| if (ch !== 9 && ch !== 32) { return false } |
| } |
| return true |
| }; |
| |
| LooseParser.prototype.extend = function extend (name, f) { |
| this[name] = f(this[name]); |
| }; |
| |
| LooseParser.prototype.parse = function parse () { |
| this.next(); |
| return this.parseTopLevel() |
| }; |
| |
| LooseParser.extend = 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 |
| }; |
| |
| LooseParser.parse = function parse (input, options) { |
| return new this(input, options).parse() |
| }; |
| |
| // Allows plugins to extend the base parser / tokenizer used |
| LooseParser.BaseParser = acorn.Parser; |
| |
| var lp = LooseParser.prototype; |
| |
| function isSpace(ch) { |
| return (ch < 14 && ch > 8) || ch === 32 || ch === 160 || acorn.isNewLine(ch) |
| } |
| |
| lp.next = function() { |
| this.last = this.tok; |
| if (this.ahead.length) |
| { this.tok = this.ahead.shift(); } |
| else |
| { this.tok = this.readToken(); } |
| |
| if (this.tok.start >= this.nextLineStart) { |
| while (this.tok.start >= this.nextLineStart) { |
| this.curLineStart = this.nextLineStart; |
| this.nextLineStart = this.lineEnd(this.curLineStart) + 1; |
| } |
| this.curIndent = this.indentationAfter(this.curLineStart); |
| } |
| }; |
| |
| lp.readToken = function() { |
| for (;;) { |
| try { |
| this.toks.next(); |
| if (this.toks.type === acorn.tokTypes.dot && |
| this.input.substr(this.toks.end, 1) === "." && |
| this.options.ecmaVersion >= 6) { |
| this.toks.end++; |
| this.toks.type = acorn.tokTypes.ellipsis; |
| } |
| return new acorn.Token(this.toks) |
| } catch (e) { |
| if (!(e instanceof SyntaxError)) { throw e } |
| |
| // Try to skip some text, based on the error message, and then continue |
| var msg = e.message, pos = e.raisedAt, replace = true; |
| if (/unterminated/i.test(msg)) { |
| pos = this.lineEnd(e.pos + 1); |
| if (/string/.test(msg)) { |
| replace = {start: e.pos, end: pos, type: acorn.tokTypes.string, value: this.input.slice(e.pos + 1, pos)}; |
| } else if (/regular expr/i.test(msg)) { |
| var re = this.input.slice(e.pos, pos); |
| try { re = new RegExp(re); } catch (e) { /* ignore compilation error due to new syntax */ } |
| replace = {start: e.pos, end: pos, type: acorn.tokTypes.regexp, value: re}; |
| } else if (/template/.test(msg)) { |
| replace = { |
| start: e.pos, |
| end: pos, |
| type: acorn.tokTypes.template, |
| value: this.input.slice(e.pos, pos) |
| }; |
| } else { |
| replace = false; |
| } |
| } else if (/invalid (unicode|regexp|number)|expecting unicode|octal literal|is reserved|directly after number|expected number in radix/i.test(msg)) { |
| while (pos < this.input.length && !isSpace(this.input.charCodeAt(pos))) { ++pos; } |
| } else if (/character escape|expected hexadecimal/i.test(msg)) { |
| while (pos < this.input.length) { |
| var ch = this.input.charCodeAt(pos++); |
| if (ch === 34 || ch === 39 || acorn.isNewLine(ch)) { break } |
| } |
| } else if (/unexpected character/i.test(msg)) { |
| pos++; |
| replace = false; |
| } else if (/regular expression/i.test(msg)) { |
| replace = true; |
| } else { |
| throw e |
| } |
| this.resetTo(pos); |
| if (replace === true) { replace = {start: pos, end: pos, type: acorn.tokTypes.name, value: "✖"}; } |
| if (replace) { |
| if (this.options.locations) |
| { replace.loc = new acorn.SourceLocation( |
| this.toks, |
| acorn.getLineInfo(this.input, replace.start), |
| acorn.getLineInfo(this.input, replace.end)); } |
| return replace |
| } |
| } |
| } |
| }; |
| |
| lp.resetTo = function(pos) { |
| this.toks.pos = pos; |
| var ch = this.input.charAt(pos - 1); |
| this.toks.exprAllowed = !ch || /[[{(,;:?/*=+\-~!|&%^<>]/.test(ch) || |
| /[enwfd]/.test(ch) && |
| /\b(case|else|return|throw|new|in|(instance|type)?of|delete|void)$/.test(this.input.slice(pos - 10, pos)); |
| |
| if (this.options.locations) { |
| this.toks.curLine = 1; |
| this.toks.lineStart = acorn.lineBreakG.lastIndex = 0; |
| var match; |
| while ((match = acorn.lineBreakG.exec(this.input)) && match.index < pos) { |
| ++this.toks.curLine; |
| this.toks.lineStart = match.index + match[0].length; |
| } |
| } |
| }; |
| |
| lp.lookAhead = function(n) { |
| while (n > this.ahead.length) |
| { this.ahead.push(this.readToken()); } |
| return this.ahead[n - 1] |
| }; |
| |
| function isDummy(node) { return node.name === "✖" } |
| |
| var lp$1 = LooseParser.prototype; |
| |
| lp$1.parseTopLevel = function() { |
| var node = this.startNodeAt(this.options.locations ? [0, acorn.getLineInfo(this.input, 0)] : 0); |
| node.body = []; |
| while (this.tok.type !== acorn.tokTypes.eof) { node.body.push(this.parseStatement()); } |
| this.toks.adaptDirectivePrologue(node.body); |
| this.last = this.tok; |
| node.sourceType = this.options.sourceType; |
| return this.finishNode(node, "Program") |
| }; |
| |
| lp$1.parseStatement = function() { |
| var starttype = this.tok.type, node = this.startNode(), kind; |
| |
| if (this.toks.isLet()) { |
| starttype = acorn.tokTypes._var; |
| kind = "let"; |
| } |
| |
| switch (starttype) { |
| case acorn.tokTypes._break: case acorn.tokTypes._continue: |
| this.next(); |
| var isBreak = starttype === acorn.tokTypes._break; |
| if (this.semicolon() || this.canInsertSemicolon()) { |
| node.label = null; |
| } else { |
| node.label = this.tok.type === acorn.tokTypes.name ? this.parseIdent() : null; |
| this.semicolon(); |
| } |
| return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement") |
| |
| case acorn.tokTypes._debugger: |
| this.next(); |
| this.semicolon(); |
| return this.finishNode(node, "DebuggerStatement") |
| |
| case acorn.tokTypes._do: |
| this.next(); |
| node.body = this.parseStatement(); |
| node.test = this.eat(acorn.tokTypes._while) ? this.parseParenExpression() : this.dummyIdent(); |
| this.semicolon(); |
| return this.finishNode(node, "DoWhileStatement") |
| |
| case acorn.tokTypes._for: |
| this.next(); // `for` keyword |
| var isAwait = this.options.ecmaVersion >= 9 && this.inAsync && this.eatContextual("await"); |
| |
| this.pushCx(); |
| this.expect(acorn.tokTypes.parenL); |
| if (this.tok.type === acorn.tokTypes.semi) { return this.parseFor(node, null) } |
| var isLet = this.toks.isLet(); |
| if (isLet || this.tok.type === acorn.tokTypes._var || this.tok.type === acorn.tokTypes._const) { |
| var init$1 = this.parseVar(this.startNode(), true, isLet ? "let" : this.tok.value); |
| if (init$1.declarations.length === 1 && (this.tok.type === acorn.tokTypes._in || this.isContextual("of"))) { |
| if (this.options.ecmaVersion >= 9 && this.tok.type !== acorn.tokTypes._in) { |
| node.await = isAwait; |
| } |
| return this.parseForIn(node, init$1) |
| } |
| return this.parseFor(node, init$1) |
| } |
| var init = this.parseExpression(true); |
| if (this.tok.type === acorn.tokTypes._in || this.isContextual("of")) { |
| if (this.options.ecmaVersion >= 9 && this.tok.type !== acorn.tokTypes._in) { |
| node.await = isAwait; |
| } |
| return this.parseForIn(node, this.toAssignable(init)) |
| } |
| return this.parseFor(node, init) |
| |
| case acorn.tokTypes._function: |
| this.next(); |
| return this.parseFunction(node, true) |
| |
| case acorn.tokTypes._if: |
| this.next(); |
| node.test = this.parseParenExpression(); |
| node.consequent = this.parseStatement(); |
| node.alternate = this.eat(acorn.tokTypes._else) ? this.parseStatement() : null; |
| return this.finishNode(node, "IfStatement") |
| |
| case acorn.tokTypes._return: |
| this.next(); |
| if (this.eat(acorn.tokTypes.semi) || this.canInsertSemicolon()) { node.argument = null; } |
| else { node.argument = this.parseExpression(); this.semicolon(); } |
| return this.finishNode(node, "ReturnStatement") |
| |
| case acorn.tokTypes._switch: |
| var blockIndent = this.curIndent, line = this.curLineStart; |
| this.next(); |
| node.discriminant = this.parseParenExpression(); |
| node.cases = []; |
| this.pushCx(); |
| this.expect(acorn.tokTypes.braceL); |
| |
| var cur; |
| while (!this.closes(acorn.tokTypes.braceR, blockIndent, line, true)) { |
| if (this.tok.type === acorn.tokTypes._case || this.tok.type === acorn.tokTypes._default) { |
| var isCase = this.tok.type === acorn.tokTypes._case; |
| if (cur) { this.finishNode(cur, "SwitchCase"); } |
| node.cases.push(cur = this.startNode()); |
| cur.consequent = []; |
| this.next(); |
| if (isCase) { cur.test = this.parseExpression(); } |
| else { cur.test = null; } |
| this.expect(acorn.tokTypes.colon); |
| } else { |
| if (!cur) { |
| node.cases.push(cur = this.startNode()); |
| cur.consequent = []; |
| cur.test = null; |
| } |
| cur.consequent.push(this.parseStatement()); |
| } |
| } |
| if (cur) { this.finishNode(cur, "SwitchCase"); } |
| this.popCx(); |
| this.eat(acorn.tokTypes.braceR); |
| return this.finishNode(node, "SwitchStatement") |
| |
| case acorn.tokTypes._throw: |
| this.next(); |
| node.argument = this.parseExpression(); |
| this.semicolon(); |
| return this.finishNode(node, "ThrowStatement") |
| |
| case acorn.tokTypes._try: |
| this.next(); |
| node.block = this.parseBlock(); |
| node.handler = null; |
| if (this.tok.type === acorn.tokTypes._catch) { |
| var clause = this.startNode(); |
| this.next(); |
| if (this.eat(acorn.tokTypes.parenL)) { |
| clause.param = this.toAssignable(this.parseExprAtom(), true); |
| this.expect(acorn.tokTypes.parenR); |
| } else { |
| clause.param = null; |
| } |
| clause.body = this.parseBlock(); |
| node.handler = this.finishNode(clause, "CatchClause"); |
| } |
| node.finalizer = this.eat(acorn.tokTypes._finally) ? this.parseBlock() : null; |
| if (!node.handler && !node.finalizer) { return node.block } |
| return this.finishNode(node, "TryStatement") |
| |
| case acorn.tokTypes._var: |
| case acorn.tokTypes._const: |
| return this.parseVar(node, false, kind || this.tok.value) |
| |
| case acorn.tokTypes._while: |
| this.next(); |
| node.test = this.parseParenExpression(); |
| node.body = this.parseStatement(); |
| return this.finishNode(node, "WhileStatement") |
| |
| case acorn.tokTypes._with: |
| this.next(); |
| node.object = this.parseParenExpression(); |
| node.body = this.parseStatement(); |
| return this.finishNode(node, "WithStatement") |
| |
| case acorn.tokTypes.braceL: |
| return this.parseBlock() |
| |
| case acorn.tokTypes.semi: |
| this.next(); |
| return this.finishNode(node, "EmptyStatement") |
| |
| case acorn.tokTypes._class: |
| return this.parseClass(true) |
| |
| case acorn.tokTypes._import: |
| if (this.options.ecmaVersion > 10 && this.lookAhead(1).type === acorn.tokTypes.parenL) { |
| node.expression = this.parseExpression(); |
| this.semicolon(); |
| return this.finishNode(node, "ExpressionStatement") |
| } |
| |
| return this.parseImport() |
| |
| case acorn.tokTypes._export: |
| return this.parseExport() |
| |
| default: |
| if (this.toks.isAsyncFunction()) { |
| this.next(); |
| this.next(); |
| return this.parseFunction(node, true, true) |
| } |
| var expr = this.parseExpression(); |
| if (isDummy(expr)) { |
| this.next(); |
| if (this.tok.type === acorn.tokTypes.eof) { return this.finishNode(node, "EmptyStatement") } |
| return this.parseStatement() |
| } else if (starttype === acorn.tokTypes.name && expr.type === "Identifier" && this.eat(acorn.tokTypes.colon)) { |
| node.body = this.parseStatement(); |
| node.label = expr; |
| return this.finishNode(node, "LabeledStatement") |
| } else { |
| node.expression = expr; |
| this.semicolon(); |
| return this.finishNode(node, "ExpressionStatement") |
| } |
| } |
| }; |
| |
| lp$1.parseBlock = function() { |
| var node = this.startNode(); |
| this.pushCx(); |
| this.expect(acorn.tokTypes.braceL); |
| var blockIndent = this.curIndent, line = this.curLineStart; |
| node.body = []; |
| while (!this.closes(acorn.tokTypes.braceR, blockIndent, line, true)) |
| { node.body.push(this.parseStatement()); } |
| this.popCx(); |
| this.eat(acorn.tokTypes.braceR); |
| return this.finishNode(node, "BlockStatement") |
| }; |
| |
| lp$1.parseFor = function(node, init) { |
| node.init = init; |
| node.test = node.update = null; |
| if (this.eat(acorn.tokTypes.semi) && this.tok.type !== acorn.tokTypes.semi) { node.test = this.parseExpression(); } |
| if (this.eat(acorn.tokTypes.semi) && this.tok.type !== acorn.tokTypes.parenR) { node.update = this.parseExpression(); } |
| this.popCx(); |
| this.expect(acorn.tokTypes.parenR); |
| node.body = this.parseStatement(); |
| return this.finishNode(node, "ForStatement") |
| }; |
| |
| lp$1.parseForIn = function(node, init) { |
| var type = this.tok.type === acorn.tokTypes._in ? "ForInStatement" : "ForOfStatement"; |
| this.next(); |
| node.left = init; |
| node.right = this.parseExpression(); |
| this.popCx(); |
| this.expect(acorn.tokTypes.parenR); |
| node.body = this.parseStatement(); |
| return this.finishNode(node, type) |
| }; |
| |
| lp$1.parseVar = function(node, noIn, kind) { |
| node.kind = kind; |
| this.next(); |
| node.declarations = []; |
| do { |
| var decl = this.startNode(); |
| decl.id = this.options.ecmaVersion >= 6 ? this.toAssignable(this.parseExprAtom(), true) : this.parseIdent(); |
| decl.init = this.eat(acorn.tokTypes.eq) ? this.parseMaybeAssign(noIn) : null; |
| node.declarations.push(this.finishNode(decl, "VariableDeclarator")); |
| } while (this.eat(acorn.tokTypes.comma)) |
| if (!node.declarations.length) { |
| var decl$1 = this.startNode(); |
| decl$1.id = this.dummyIdent(); |
| node.declarations.push(this.finishNode(decl$1, "VariableDeclarator")); |
| } |
| if (!noIn) { this.semicolon(); } |
| return this.finishNode(node, "VariableDeclaration") |
| }; |
| |
| lp$1.parseClass = function(isStatement) { |
| var node = this.startNode(); |
| this.next(); |
| if (this.tok.type === acorn.tokTypes.name) { node.id = this.parseIdent(); } |
| else if (isStatement === true) { node.id = this.dummyIdent(); } |
| else { node.id = null; } |
| node.superClass = this.eat(acorn.tokTypes._extends) ? this.parseExpression() : null; |
| node.body = this.startNode(); |
| node.body.body = []; |
| this.pushCx(); |
| var indent = this.curIndent + 1, line = this.curLineStart; |
| this.eat(acorn.tokTypes.braceL); |
| if (this.curIndent + 1 < indent) { indent = this.curIndent; line = this.curLineStart; } |
| while (!this.closes(acorn.tokTypes.braceR, indent, line)) { |
| if (this.semicolon()) { continue } |
| var method = this.startNode(), isGenerator = (void 0), isAsync = (void 0); |
| if (this.options.ecmaVersion >= 6) { |
| method.static = false; |
| isGenerator = this.eat(acorn.tokTypes.star); |
| } |
| this.parsePropertyName(method); |
| if (isDummy(method.key)) { if (isDummy(this.parseMaybeAssign())) { this.next(); } this.eat(acorn.tokTypes.comma); continue } |
| if (method.key.type === "Identifier" && !method.computed && method.key.name === "static" && |
| (this.tok.type !== acorn.tokTypes.parenL && this.tok.type !== acorn.tokTypes.braceL)) { |
| method.static = true; |
| isGenerator = this.eat(acorn.tokTypes.star); |
| this.parsePropertyName(method); |
| } else { |
| method.static = false; |
| } |
| if (!method.computed && |
| method.key.type === "Identifier" && method.key.name === "async" && this.tok.type !== acorn.tokTypes.parenL && |
| !this.canInsertSemicolon()) { |
| isAsync = true; |
| isGenerator = this.options.ecmaVersion >= 9 && this.eat(acorn.tokTypes.star); |
| this.parsePropertyName(method); |
| } else { |
| isAsync = false; |
| } |
| if (this.options.ecmaVersion >= 5 && method.key.type === "Identifier" && |
| !method.computed && (method.key.name === "get" || method.key.name === "set") && |
| this.tok.type !== acorn.tokTypes.parenL && this.tok.type !== acorn.tokTypes.braceL) { |
| method.kind = method.key.name; |
| this.parsePropertyName(method); |
| method.value = this.parseMethod(false); |
| } else { |
| if (!method.computed && !method.static && !isGenerator && !isAsync && ( |
| method.key.type === "Identifier" && method.key.name === "constructor" || |
| method.key.type === "Literal" && method.key.value === "constructor")) { |
| method.kind = "constructor"; |
| } else { |
| method.kind = "method"; |
| } |
| method.value = this.parseMethod(isGenerator, isAsync); |
| } |
| node.body.body.push(this.finishNode(method, "MethodDefinition")); |
| } |
| this.popCx(); |
| if (!this.eat(acorn.tokTypes.braceR)) { |
| // If there is no closing brace, make the node span to the start |
| // of the next token (this is useful for Tern) |
| this.last.end = this.tok.start; |
| if (this.options.locations) { this.last.loc.end = this.tok.loc.start; } |
| } |
| this.semicolon(); |
| this.finishNode(node.body, "ClassBody"); |
| return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression") |
| }; |
| |
| lp$1.parseFunction = function(node, isStatement, isAsync) { |
| var oldInAsync = this.inAsync, oldInFunction = this.inFunction; |
| this.initFunction(node); |
| if (this.options.ecmaVersion >= 6) { |
| node.generator = this.eat(acorn.tokTypes.star); |
| } |
| if (this.options.ecmaVersion >= 8) { |
| node.async = !!isAsync; |
| } |
| if (this.tok.type === acorn.tokTypes.name) { node.id = this.parseIdent(); } |
| else if (isStatement === true) { node.id = this.dummyIdent(); } |
| this.inAsync = node.async; |
| this.inFunction = true; |
| node.params = this.parseFunctionParams(); |
| node.body = this.parseBlock(); |
| this.toks.adaptDirectivePrologue(node.body.body); |
| this.inAsync = oldInAsync; |
| this.inFunction = oldInFunction; |
| return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression") |
| }; |
| |
| lp$1.parseExport = function() { |
| var node = this.startNode(); |
| this.next(); |
| if (this.eat(acorn.tokTypes.star)) { |
| node.source = this.eatContextual("from") ? this.parseExprAtom() : this.dummyString(); |
| return this.finishNode(node, "ExportAllDeclaration") |
| } |
| if (this.eat(acorn.tokTypes._default)) { |
| // export default (function foo() {}) // This is FunctionExpression. |
| var isAsync; |
| if (this.tok.type === acorn.tokTypes._function || (isAsync = this.toks.isAsyncFunction())) { |
| var fNode = this.startNode(); |
| this.next(); |
| if (isAsync) { this.next(); } |
| node.declaration = this.parseFunction(fNode, "nullableID", isAsync); |
| } else if (this.tok.type === acorn.tokTypes._class) { |
| node.declaration = this.parseClass("nullableID"); |
| } else { |
| node.declaration = this.parseMaybeAssign(); |
| this.semicolon(); |
| } |
| return this.finishNode(node, "ExportDefaultDeclaration") |
| } |
| if (this.tok.type.keyword || this.toks.isLet() || this.toks.isAsyncFunction()) { |
| node.declaration = this.parseStatement(); |
| node.specifiers = []; |
| node.source = null; |
| } else { |
| node.declaration = null; |
| node.specifiers = this.parseExportSpecifierList(); |
| node.source = this.eatContextual("from") ? this.parseExprAtom() : null; |
| this.semicolon(); |
| } |
| return this.finishNode(node, "ExportNamedDeclaration") |
| }; |
| |
| lp$1.parseImport = function() { |
| var node = this.startNode(); |
| this.next(); |
| if (this.tok.type === acorn.tokTypes.string) { |
| node.specifiers = []; |
| node.source = this.parseExprAtom(); |
| } else { |
| var elt; |
| if (this.tok.type === acorn.tokTypes.name && this.tok.value !== "from") { |
| elt = this.startNode(); |
| elt.local = this.parseIdent(); |
| this.finishNode(elt, "ImportDefaultSpecifier"); |
| this.eat(acorn.tokTypes.comma); |
| } |
| node.specifiers = this.parseImportSpecifiers(); |
| node.source = this.eatContextual("from") && this.tok.type === acorn.tokTypes.string ? this.parseExprAtom() : this.dummyString(); |
| if (elt) { node.specifiers.unshift(elt); } |
| } |
| this.semicolon(); |
| return this.finishNode(node, "ImportDeclaration") |
| }; |
| |
| lp$1.parseImportSpecifiers = function() { |
| var elts = []; |
| if (this.tok.type === acorn.tokTypes.star) { |
| var elt = this.startNode(); |
| this.next(); |
| elt.local = this.eatContextual("as") ? this.parseIdent() : this.dummyIdent(); |
| elts.push(this.finishNode(elt, "ImportNamespaceSpecifier")); |
| } else { |
| var indent = this.curIndent, line = this.curLineStart, continuedLine = this.nextLineStart; |
| this.pushCx(); |
| this.eat(acorn.tokTypes.braceL); |
| if (this.curLineStart > continuedLine) { continuedLine = this.curLineStart; } |
| while (!this.closes(acorn.tokTypes.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) { |
| var elt$1 = this.startNode(); |
| if (this.eat(acorn.tokTypes.star)) { |
| elt$1.local = this.eatContextual("as") ? this.parseIdent() : this.dummyIdent(); |
| this.finishNode(elt$1, "ImportNamespaceSpecifier"); |
| } else { |
| if (this.isContextual("from")) { break } |
| elt$1.imported = this.parseIdent(); |
| if (isDummy(elt$1.imported)) { break } |
| elt$1.local = this.eatContextual("as") ? this.parseIdent() : elt$1.imported; |
| this.finishNode(elt$1, "ImportSpecifier"); |
| } |
| elts.push(elt$1); |
| this.eat(acorn.tokTypes.comma); |
| } |
| this.eat(acorn.tokTypes.braceR); |
| this.popCx(); |
| } |
| return elts |
| }; |
| |
| lp$1.parseExportSpecifierList = function() { |
| var elts = []; |
| var indent = this.curIndent, line = this.curLineStart, continuedLine = this.nextLineStart; |
| this.pushCx(); |
| this.eat(acorn.tokTypes.braceL); |
| if (this.curLineStart > continuedLine) { continuedLine = this.curLineStart; } |
| while (!this.closes(acorn.tokTypes.braceR, indent + (this.curLineStart <= continuedLine ? 1 : 0), line)) { |
| if (this.isContextual("from")) { break } |
| var elt = this.startNode(); |
| elt.local = this.parseIdent(); |
| if (isDummy(elt.local)) { break } |
| elt.exported = this.eatContextual("as") ? this.parseIdent() : elt.local; |
| this.finishNode(elt, "ExportSpecifier"); |
| elts.push(elt); |
| this.eat(acorn.tokTypes.comma); |
| } |
| this.eat(acorn.tokTypes.braceR); |
| this.popCx(); |
| return elts |
| }; |
| |
| var lp$2 = LooseParser.prototype; |
| |
| lp$2.checkLVal = function(expr) { |
| if (!expr) { return expr } |
| switch (expr.type) { |
| case "Identifier": |
| case "MemberExpression": |
| return expr |
| |
| case "ParenthesizedExpression": |
| expr.expression = this.checkLVal(expr.expression); |
| return expr |
| |
| default: |
| return this.dummyIdent() |
| } |
| }; |
| |
| lp$2.parseExpression = function(noIn) { |
| var start = this.storeCurrentPos(); |
| var expr = this.parseMaybeAssign(noIn); |
| if (this.tok.type === acorn.tokTypes.comma) { |
| var node = this.startNodeAt(start); |
| node.expressions = [expr]; |
| while (this.eat(acorn.tokTypes.comma)) { node.expressions.push(this.parseMaybeAssign(noIn)); } |
| return this.finishNode(node, "SequenceExpression") |
| } |
| return expr |
| }; |
| |
| lp$2.parseParenExpression = function() { |
| this.pushCx(); |
| this.expect(acorn.tokTypes.parenL); |
| var val = this.parseExpression(); |
| this.popCx(); |
| this.expect(acorn.tokTypes.parenR); |
| return val |
| }; |
| |
| lp$2.parseMaybeAssign = function(noIn) { |
| if (this.toks.isContextual("yield")) { |
| var node = this.startNode(); |
| this.next(); |
| if (this.semicolon() || this.canInsertSemicolon() || (this.tok.type !== acorn.tokTypes.star && !this.tok.type.startsExpr)) { |
| node.delegate = false; |
| node.argument = null; |
| } else { |
| node.delegate = this.eat(acorn.tokTypes.star); |
| node.argument = this.parseMaybeAssign(); |
| } |
| return this.finishNode(node, "YieldExpression") |
| } |
| |
| var start = this.storeCurrentPos(); |
| var left = this.parseMaybeConditional(noIn); |
| if (this.tok.type.isAssign) { |
| var node$1 = this.startNodeAt(start); |
| node$1.operator = this.tok.value; |
| node$1.left = this.tok.type === acorn.tokTypes.eq ? this.toAssignable(left) : this.checkLVal(left); |
| this.next(); |
| node$1.right = this.parseMaybeAssign(noIn); |
| return this.finishNode(node$1, "AssignmentExpression") |
| } |
| return left |
| }; |
| |
| lp$2.parseMaybeConditional = function(noIn) { |
| var start = this.storeCurrentPos(); |
| var expr = this.parseExprOps(noIn); |
| if (this.eat(acorn.tokTypes.question)) { |
| var node = this.startNodeAt(start); |
| node.test = expr; |
| node.consequent = this.parseMaybeAssign(); |
| node.alternate = this.expect(acorn.tokTypes.colon) ? this.parseMaybeAssign(noIn) : this.dummyIdent(); |
| return this.finishNode(node, "ConditionalExpression") |
| } |
| return expr |
| }; |
| |
| lp$2.parseExprOps = function(noIn) { |
| var start = this.storeCurrentPos(); |
| var indent = this.curIndent, line = this.curLineStart; |
| return this.parseExprOp(this.parseMaybeUnary(false), start, -1, noIn, indent, line) |
| }; |
| |
| lp$2.parseExprOp = function(left, start, minPrec, noIn, indent, line) { |
| if (this.curLineStart !== line && this.curIndent < indent && this.tokenStartsLine()) { return left } |
| var prec = this.tok.type.binop; |
| if (prec != null && (!noIn || this.tok.type !== acorn.tokTypes._in)) { |
| if (prec > minPrec) { |
| var node = this.startNodeAt(start); |
| node.left = left; |
| node.operator = this.tok.value; |
| this.next(); |
| if (this.curLineStart !== line && this.curIndent < indent && this.tokenStartsLine()) { |
| node.right = this.dummyIdent(); |
| } else { |
| var rightStart = this.storeCurrentPos(); |
| node.right = this.parseExprOp(this.parseMaybeUnary(false), rightStart, prec, noIn, indent, line); |
| } |
| this.finishNode(node, /&&|\|\|/.test(node.operator) ? "LogicalExpression" : "BinaryExpression"); |
| return this.parseExprOp(node, start, minPrec, noIn, indent, line) |
| } |
| } |
| return left |
| }; |
| |
| lp$2.parseMaybeUnary = function(sawUnary) { |
| var start = this.storeCurrentPos(), expr; |
| if (this.options.ecmaVersion >= 8 && this.toks.isContextual("await") && |
| (this.inAsync || (!this.inFunction && this.options.allowAwaitOutsideFunction)) |
| ) { |
| expr = this.parseAwait(); |
| sawUnary = true; |
| } else if (this.tok.type.prefix) { |
| var node = this.startNode(), update = this.tok.type === acorn.tokTypes.incDec; |
| if (!update) { sawUnary = true; } |
| node.operator = this.tok.value; |
| node.prefix = true; |
| this.next(); |
| node.argument = this.parseMaybeUnary(true); |
| if (update) { node.argument = this.checkLVal(node.argument); } |
| expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression"); |
| } else if (this.tok.type === acorn.tokTypes.ellipsis) { |
| var node$1 = this.startNode(); |
| this.next(); |
| node$1.argument = this.parseMaybeUnary(sawUnary); |
| expr = this.finishNode(node$1, "SpreadElement"); |
| } else { |
| expr = this.parseExprSubscripts(); |
| while (this.tok.type.postfix && !this.canInsertSemicolon()) { |
| var node$2 = this.startNodeAt(start); |
| node$2.operator = this.tok.value; |
| node$2.prefix = false; |
| node$2.argument = this.checkLVal(expr); |
| this.next(); |
| expr = this.finishNode(node$2, "UpdateExpression"); |
| } |
| } |
| |
| if (!sawUnary && this.eat(acorn.tokTypes.starstar)) { |
| var node$3 = this.startNodeAt(start); |
| node$3.operator = "**"; |
| node$3.left = expr; |
| node$3.right = this.parseMaybeUnary(false); |
| return this.finishNode(node$3, "BinaryExpression") |
| } |
| |
| return expr |
| }; |
| |
| lp$2.parseExprSubscripts = function() { |
| var start = this.storeCurrentPos(); |
| return this.parseSubscripts(this.parseExprAtom(), start, false, this.curIndent, this.curLineStart) |
| }; |
| |
| lp$2.parseSubscripts = function(base, start, noCalls, startIndent, line) { |
| for (;;) { |
| if (this.curLineStart !== line && this.curIndent <= startIndent && this.tokenStartsLine()) { |
| if (this.tok.type === acorn.tokTypes.dot && this.curIndent === startIndent) |
| { --startIndent; } |
| else |
| { return base } |
| } |
| |
| var maybeAsyncArrow = base.type === "Identifier" && base.name === "async" && !this.canInsertSemicolon(); |
| |
| if (this.eat(acorn.tokTypes.dot)) { |
| var node = this.startNodeAt(start); |
| node.object = base; |
| if (this.curLineStart !== line && this.curIndent <= startIndent && this.tokenStartsLine()) |
| { node.property = this.dummyIdent(); } |
| else |
| { node.property = this.parsePropertyAccessor() || this.dummyIdent(); } |
| node.computed = false; |
| base = this.finishNode(node, "MemberExpression"); |
| } else if (this.tok.type === acorn.tokTypes.bracketL) { |
| this.pushCx(); |
| this.next(); |
| var node$1 = this.startNodeAt(start); |
| node$1.object = base; |
| node$1.property = this.parseExpression(); |
| node$1.computed = true; |
| this.popCx(); |
| this.expect(acorn.tokTypes.bracketR); |
| base = this.finishNode(node$1, "MemberExpression"); |
| } else if (!noCalls && this.tok.type === acorn.tokTypes.parenL) { |
| var exprList = this.parseExprList(acorn.tokTypes.parenR); |
| if (maybeAsyncArrow && this.eat(acorn.tokTypes.arrow)) |
| { return this.parseArrowExpression(this.startNodeAt(start), exprList, true) } |
| var node$2 = this.startNodeAt(start); |
| node$2.callee = base; |
| node$2.arguments = exprList; |
| base = this.finishNode(node$2, "CallExpression"); |
| } else if (this.tok.type === acorn.tokTypes.backQuote) { |
| var node$3 = this.startNodeAt(start); |
| node$3.tag = base; |
| node$3.quasi = this.parseTemplate(); |
| base = this.finishNode(node$3, "TaggedTemplateExpression"); |
| } else { |
| return base |
| } |
| } |
| }; |
| |
| lp$2.parseExprAtom = function() { |
| var node; |
| switch (this.tok.type) { |
| case acorn.tokTypes._this: |
| case acorn.tokTypes._super: |
| var type = this.tok.type === acorn.tokTypes._this ? "ThisExpression" : "Super"; |
| node = this.startNode(); |
| this.next(); |
| return this.finishNode(node, type) |
| |
| case acorn.tokTypes.name: |
| var start = this.storeCurrentPos(); |
| var id = this.parseIdent(); |
| var isAsync = false; |
| if (id.name === "async" && !this.canInsertSemicolon()) { |
| if (this.eat(acorn.tokTypes._function)) |
| { return this.parseFunction(this.startNodeAt(start), false, true) } |
| if (this.tok.type === acorn.tokTypes.name) { |
| id = this.parseIdent(); |
| isAsync = true; |
| } |
| } |
| return this.eat(acorn.tokTypes.arrow) ? this.parseArrowExpression(this.startNodeAt(start), [id], isAsync) : id |
| |
| case acorn.tokTypes.regexp: |
| node = this.startNode(); |
| var val = this.tok.value; |
| node.regex = {pattern: val.pattern, flags: val.flags}; |
| node.value = val.value; |
| node.raw = this.input.slice(this.tok.start, this.tok.end); |
| this.next(); |
| return this.finishNode(node, "Literal") |
| |
| case acorn.tokTypes.num: case acorn.tokTypes.string: |
| node = this.startNode(); |
| node.value = this.tok.value; |
| node.raw = this.input.slice(this.tok.start, this.tok.end); |
| if (this.tok.type === acorn.tokTypes.num && node.raw.charCodeAt(node.raw.length - 1) === 110) { node.bigint = node.raw.slice(0, -1); } |
| this.next(); |
| return this.finishNode(node, "Literal") |
| |
| case acorn.tokTypes._null: case acorn.tokTypes._true: case acorn.tokTypes._false: |
| node = this.startNode(); |
| node.value = this.tok.type === acorn.tokTypes._null ? null : this.tok.type === acorn.tokTypes._true; |
| node.raw = this.tok.type.keyword; |
| this.next(); |
| return this.finishNode(node, "Literal") |
| |
| case acorn.tokTypes.parenL: |
| var parenStart = this.storeCurrentPos(); |
| this.next(); |
| var inner = this.parseExpression(); |
| this.expect(acorn.tokTypes.parenR); |
| if (this.eat(acorn.tokTypes.arrow)) { |
| // (a,)=>a // SequenceExpression makes dummy in the last hole. Drop the dummy. |
| var params = inner.expressions || [inner]; |
| if (params.length && isDummy(params[params.length - 1])) |
| { params.pop(); } |
| return this.parseArrowExpression(this.startNodeAt(parenStart), params) |
| } |
| if (this.options.preserveParens) { |
| var par = this.startNodeAt(parenStart); |
| par.expression = inner; |
| inner = this.finishNode(par, "ParenthesizedExpression"); |
| } |
| return inner |
| |
| case acorn.tokTypes.bracketL: |
| node = this.startNode(); |
| node.elements = this.parseExprList(acorn.tokTypes.bracketR, true); |
| return this.finishNode(node, "ArrayExpression") |
| |
| case acorn.tokTypes.braceL: |
| return this.parseObj() |
| |
| case acorn.tokTypes._class: |
| return this.parseClass(false) |
| |
| case acorn.tokTypes._function: |
| node = this.startNode(); |
| this.next(); |
| return this.parseFunction(node, false) |
| |
| case acorn.tokTypes._new: |
| return this.parseNew() |
| |
| case acorn.tokTypes.backQuote: |
| return this.parseTemplate() |
| |
| case acorn.tokTypes._import: |
| if (this.options.ecmaVersion >= 11) { |
| return this.parseExprImport() |
| } else { |
| return this.dummyIdent() |
| } |
| |
| default: |
| return this.dummyIdent() |
| } |
| }; |
| |
| lp$2.parseExprImport = function() { |
| var node = this.startNode(); |
| this.next(); // skip `import` |
| switch (this.tok.type) { |
| case acorn.tokTypes.parenL: |
| return this.parseDynamicImport(node) |
| default: |
| node.name = "import"; |
| return this.finishNode(node, "Identifier") |
| } |
| }; |
| |
| lp$2.parseDynamicImport = function(node) { |
| node.source = this.parseExprList(acorn.tokTypes.parenR)[0] || this.dummyString(); |
| return this.finishNode(node, "ImportExpression") |
| }; |
| |
| lp$2.parseNew = function() { |
| var node = this.startNode(), startIndent = this.curIndent, line = this.curLineStart; |
| var meta = this.parseIdent(true); |
| if (this.options.ecmaVersion >= 6 && this.eat(acorn.tokTypes.dot)) { |
| node.meta = meta; |
| node.property = this.parseIdent(true); |
| return this.finishNode(node, "MetaProperty") |
| } |
| var start = this.storeCurrentPos(); |
| node.callee = this.parseSubscripts(this.parseExprAtom(), start, true, startIndent, line); |
| if (this.tok.type === acorn.tokTypes.parenL) { |
| node.arguments = this.parseExprList(acorn.tokTypes.parenR); |
| } else { |
| node.arguments = []; |
| } |
| return this.finishNode(node, "NewExpression") |
| }; |
| |
| lp$2.parseTemplateElement = function() { |
| var elem = this.startNode(); |
| |
| // The loose parser accepts invalid unicode escapes even in untagged templates. |
| if (this.tok.type === acorn.tokTypes.invalidTemplate) { |
| elem.value = { |
| raw: this.tok.value, |
| cooked: null |
| }; |
| } else { |
| elem.value = { |
| raw: this.input.slice(this.tok.start, this.tok.end).replace(/\r\n?/g, "\n"), |
| cooked: this.tok.value |
| }; |
| } |
| this.next(); |
| elem.tail = this.tok.type === acorn.tokTypes.backQuote; |
| return this.finishNode(elem, "TemplateElement") |
| }; |
| |
| lp$2.parseTemplate = function() { |
| var node = this.startNode(); |
| this.next(); |
| node.expressions = []; |
| var curElt = this.parseTemplateElement(); |
| node.quasis = [curElt]; |
| while (!curElt.tail) { |
| this.next(); |
| node.expressions.push(this.parseExpression()); |
| if (this.expect(acorn.tokTypes.braceR)) { |
| curElt = this.parseTemplateElement(); |
| } else { |
| curElt = this.startNode(); |
| curElt.value = {cooked: "", raw: ""}; |
| curElt.tail = true; |
| this.finishNode(curElt, "TemplateElement"); |
| } |
| node.quasis.push(curElt); |
| } |
| this.expect(acorn.tokTypes.backQuote); |
| return this.finishNode(node, "TemplateLiteral") |
| }; |
| |
| lp$2.parseObj = function() { |
| var node = this.startNode(); |
| node.properties = []; |
| this.pushCx(); |
| var indent = this.curIndent + 1, line = this.curLineStart; |
| this.eat(acorn.tokTypes.braceL); |
| if (this.curIndent + 1 < indent) { indent = this.curIndent; line = this.curLineStart; } |
| while (!this.closes(acorn.tokTypes.braceR, indent, line)) { |
| var prop = this.startNode(), isGenerator = (void 0), isAsync = (void 0), start = (void 0); |
| if (this.options.ecmaVersion >= 9 && this.eat(acorn.tokTypes.ellipsis)) { |
| prop.argument = this.parseMaybeAssign(); |
| node.properties.push(this.finishNode(prop, "SpreadElement")); |
| this.eat(acorn.tokTypes.comma); |
| continue |
| } |
| if (this.options.ecmaVersion >= 6) { |
| start = this.storeCurrentPos(); |
| prop.method = false; |
| prop.shorthand = false; |
| isGenerator = this.eat(acorn.tokTypes.star); |
| } |
| this.parsePropertyName(prop); |
| if (this.toks.isAsyncProp(prop)) { |
| isAsync = true; |
| isGenerator = this.options.ecmaVersion >= 9 && this.eat(acorn.tokTypes.star); |
| this.parsePropertyName(prop); |
| } else { |
| isAsync = false; |
| } |
| if (isDummy(prop.key)) { if (isDummy(this.parseMaybeAssign())) { this.next(); } this.eat(acorn.tokTypes.comma); continue } |
| if (this.eat(acorn.tokTypes.colon)) { |
| prop.kind = "init"; |
| prop.value = this.parseMaybeAssign(); |
| } else if (this.options.ecmaVersion >= 6 && (this.tok.type === acorn.tokTypes.parenL || this.tok.type === acorn.tokTypes.braceL)) { |
| prop.kind = "init"; |
| prop.method = true; |
| prop.value = this.parseMethod(isGenerator, isAsync); |
| } else if (this.options.ecmaVersion >= 5 && prop.key.type === "Identifier" && |
| !prop.computed && (prop.key.name === "get" || prop.key.name === "set") && |
| (this.tok.type !== acorn.tokTypes.comma && this.tok.type !== acorn.tokTypes.braceR && this.tok.type !== acorn.tokTypes.eq)) { |
| prop.kind = prop.key.name; |
| this.parsePropertyName(prop); |
| prop.value = this.parseMethod(false); |
| } else { |
| prop.kind = "init"; |
| if (this.options.ecmaVersion >= 6) { |
| if (this.eat(acorn.tokTypes.eq)) { |
| var assign = this.startNodeAt(start); |
| assign.operator = "="; |
| assign.left = prop.key; |
| assign.right = this.parseMaybeAssign(); |
| prop.value = this.finishNode(assign, "AssignmentExpression"); |
| } else { |
| prop.value = prop.key; |
| } |
| } else { |
| prop.value = this.dummyIdent(); |
| } |
| prop.shorthand = true; |
| } |
| node.properties.push(this.finishNode(prop, "Property")); |
| this.eat(acorn.tokTypes.comma); |
| } |
| this.popCx(); |
| if (!this.eat(acorn.tokTypes.braceR)) { |
| // If there is no closing brace, make the node span to the start |
| // of the next token (this is useful for Tern) |
| this.last.end = this.tok.start; |
| if (this.options.locations) { this.last.loc.end = this.tok.loc.start; } |
| } |
| return this.finishNode(node, "ObjectExpression") |
| }; |
| |
| lp$2.parsePropertyName = function(prop) { |
| if (this.options.ecmaVersion >= 6) { |
| if (this.eat(acorn.tokTypes.bracketL)) { |
| prop.computed = true; |
| prop.key = this.parseExpression(); |
| this.expect(acorn.tokTypes.bracketR); |
| return |
| } else { |
| prop.computed = false; |
| } |
| } |
| var key = (this.tok.type === acorn.tokTypes.num || this.tok.type === acorn.tokTypes.string) ? this.parseExprAtom() : this.parseIdent(); |
| prop.key = key || this.dummyIdent(); |
| }; |
| |
| lp$2.parsePropertyAccessor = function() { |
| if (this.tok.type === acorn.tokTypes.name || this.tok.type.keyword) { return this.parseIdent() } |
| }; |
| |
| lp$2.parseIdent = function() { |
| var name = this.tok.type === acorn.tokTypes.name ? this.tok.value : this.tok.type.keyword; |
| if (!name) { return this.dummyIdent() } |
| var node = this.startNode(); |
| this.next(); |
| node.name = name; |
| return this.finishNode(node, "Identifier") |
| }; |
| |
| lp$2.initFunction = function(node) { |
| node.id = null; |
| node.params = []; |
| if (this.options.ecmaVersion >= 6) { |
| node.generator = false; |
| node.expression = false; |
| } |
| if (this.options.ecmaVersion >= 8) |
| { node.async = false; } |
| }; |
| |
| // Convert existing expression atom to assignable pattern |
| // if possible. |
| |
| lp$2.toAssignable = function(node, binding) { |
| if (!node || node.type === "Identifier" || (node.type === "MemberExpression" && !binding)) ; else if (node.type === "ParenthesizedExpression") { |
| this.toAssignable(node.expression, binding); |
| } else if (this.options.ecmaVersion < 6) { |
| return this.dummyIdent() |
| } else if (node.type === "ObjectExpression") { |
| node.type = "ObjectPattern"; |
| for (var i = 0, list = node.properties; i < list.length; i += 1) |
| { |
| var prop = list[i]; |
| |
| this.toAssignable(prop, binding); |
| } |
| } else if (node.type === "ArrayExpression") { |
| node.type = "ArrayPattern"; |
| this.toAssignableList(node.elements, binding); |
| } else if (node.type === "Property") { |
| this.toAssignable(node.value, binding); |
| } else if (node.type === "SpreadElement") { |
| node.type = "RestElement"; |
| this.toAssignable(node.argument, binding); |
| } else if (node.type === "AssignmentExpression") { |
| node.type = "AssignmentPattern"; |
| delete node.operator; |
| } else { |
| return this.dummyIdent() |
| } |
| return node |
| }; |
| |
| lp$2.toAssignableList = function(exprList, binding) { |
| for (var i = 0, list = exprList; i < list.length; i += 1) |
| { |
| var expr = list[i]; |
| |
| this.toAssignable(expr, binding); |
| } |
| return exprList |
| }; |
| |
| lp$2.parseFunctionParams = function(params) { |
| params = this.parseExprList(acorn.tokTypes.parenR); |
| return this.toAssignableList(params, true) |
| }; |
| |
| lp$2.parseMethod = function(isGenerator, isAsync) { |
| var node = this.startNode(), oldInAsync = this.inAsync, oldInFunction = this.inFunction; |
| this.initFunction(node); |
| if (this.options.ecmaVersion >= 6) |
| { node.generator = !!isGenerator; } |
| if (this.options.ecmaVersion >= 8) |
| { node.async = !!isAsync; } |
| this.inAsync = node.async; |
| this.inFunction = true; |
| node.params = this.parseFunctionParams(); |
| node.body = this.parseBlock(); |
| this.toks.adaptDirectivePrologue(node.body.body); |
| this.inAsync = oldInAsync; |
| this.inFunction = oldInFunction; |
| return this.finishNode(node, "FunctionExpression") |
| }; |
| |
| lp$2.parseArrowExpression = function(node, params, isAsync) { |
| var oldInAsync = this.inAsync, oldInFunction = this.inFunction; |
| this.initFunction(node); |
| if (this.options.ecmaVersion >= 8) |
| { node.async = !!isAsync; } |
| this.inAsync = node.async; |
| this.inFunction = true; |
| node.params = this.toAssignableList(params, true); |
| node.expression = this.tok.type !== acorn.tokTypes.braceL; |
| if (node.expression) { |
| node.body = this.parseMaybeAssign(); |
| } else { |
| node.body = this.parseBlock(); |
| this.toks.adaptDirectivePrologue(node.body.body); |
| } |
| this.inAsync = oldInAsync; |
| this.inFunction = oldInFunction; |
| return this.finishNode(node, "ArrowFunctionExpression") |
| }; |
| |
| lp$2.parseExprList = function(close, allowEmpty) { |
| this.pushCx(); |
| var indent = this.curIndent, line = this.curLineStart, elts = []; |
| this.next(); // Opening bracket |
| while (!this.closes(close, indent + 1, line)) { |
| if (this.eat(acorn.tokTypes.comma)) { |
| elts.push(allowEmpty ? null : this.dummyIdent()); |
| continue |
| } |
| var elt = this.parseMaybeAssign(); |
| if (isDummy(elt)) { |
| if (this.closes(close, indent, line)) { break } |
| this.next(); |
| } else { |
| elts.push(elt); |
| } |
| this.eat(acorn.tokTypes.comma); |
| } |
| this.popCx(); |
| if (!this.eat(close)) { |
| // If there is no closing brace, make the node span to the start |
| // of the next token (this is useful for Tern) |
| this.last.end = this.tok.start; |
| if (this.options.locations) { this.last.loc.end = this.tok.loc.start; } |
| } |
| return elts |
| }; |
| |
| lp$2.parseAwait = function() { |
| var node = this.startNode(); |
| this.next(); |
| node.argument = this.parseMaybeUnary(); |
| return this.finishNode(node, "AwaitExpression") |
| }; |
| |
| // Acorn: Loose parser |
| |
| acorn.defaultOptions.tabSize = 4; |
| |
| function parse(input, options) { |
| return LooseParser.parse(input, options) |
| } |
| |
| exports.LooseParser = LooseParser; |
| exports.parse = parse; |
| |
| Object.defineProperty(exports, '__esModule', { value: true }); |
| |
| })); |
| // clang-format on |
