| // 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) : |
| (factory((global.acorn = global.acorn || {}, global.acorn.loose = global.acorn.loose || {}),global.acorn)); |
| }(this, (function (exports,__acorn) { 'use strict'; |
| |
| // Registered plugins |
| var pluginsLoose = {} |
| |
| var LooseParser = function LooseParser(input, options) { |
| if ( options === void 0 ) options = {}; |
| |
| this.toks = __acorn.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} |
| 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 |
| // Load plugins |
| this.options.pluginsLoose = options.pluginsLoose || {} |
| this.loadPlugins(this.options.pluginsLoose) |
| }; |
| |
| 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) { |
| var this$1 = this; |
| |
| if (this.eat(type)) return true |
| for (var i = 1; i <= 2; i++) { |
| if (this$1.lookAhead(i).type == type) { |
| for (var j = 0; j < i; j++) this$1.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) { |
| var this$1 = this; |
| |
| for (var count = 0;; ++pos) { |
| var ch = this$1.input.charCodeAt(pos) |
| if (ch === 32) ++count |
| else if (ch === 9) count += this$1.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 () { |
| var this$1 = this; |
| |
| for (var p = this.tok.start - 1; p >= this.curLineStart; --p) { |
| var ch = this$1.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.loadPlugins = function loadPlugins (pluginConfigs) { |
| var this$1 = this; |
| |
| for (var name in pluginConfigs) { |
| var plugin = pluginsLoose[name] |
| if (!plugin) throw new Error("Plugin '" + name + "' not found") |
| plugin(this$1, pluginConfigs[name]) |
| } |
| }; |
| |
| var lp = LooseParser.prototype |
| |
| function isSpace(ch) { |
| return (ch < 14 && ch > 8) || ch === 32 || ch === 160 || __acorn.isNewLine(ch) |
| } |
| |
| lp.next = function() { |
| var this$1 = this; |
| |
| 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$1.curLineStart = this$1.nextLineStart |
| this$1.nextLineStart = this$1.lineEnd(this$1.curLineStart) + 1 |
| } |
| this.curIndent = this.indentationAfter(this.curLineStart) |
| } |
| } |
| |
| lp.readToken = function() { |
| var this$1 = this; |
| |
| for (;;) { |
| try { |
| this$1.toks.next() |
| if (this$1.toks.type === __acorn.tokTypes.dot && |
| this$1.input.substr(this$1.toks.end, 1) === "." && |
| this$1.options.ecmaVersion >= 6) { |
| this$1.toks.end++ |
| this$1.toks.type = __acorn.tokTypes.ellipsis |
| } |
| return new __acorn.Token(this$1.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$1.lineEnd(e.pos + 1) |
| if (/string/.test(msg)) { |
| replace = {start: e.pos, end: pos, type: __acorn.tokTypes.string, value: this$1.input.slice(e.pos + 1, pos)} |
| } else if (/regular expr/i.test(msg)) { |
| var re = this$1.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$1.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$1.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$1.resetTo(pos) |
| if (replace === true) replace = {start: pos, end: pos, type: __acorn.tokTypes.name, value: "✖"} |
| if (replace) { |
| if (this$1.options.locations) |
| replace.loc = new __acorn.SourceLocation( |
| this$1.toks, |
| __acorn.getLineInfo(this$1.input, replace.start), |
| __acorn.getLineInfo(this$1.input, replace.end)) |
| return replace |
| } |
| } |
| } |
| } |
| |
| lp.resetTo = function(pos) { |
| var this$1 = this; |
| |
| this.toks.pos = pos |
| var ch = this.input.charAt(pos - 1) |
| this.toks.exprAllowed = !ch || /[[{(,;:?/*=+\-~!|&%^<>]/.test(ch) || |
| /[enwfd]/.test(ch) && |
| /\b(keywords|case|else|return|throw|new|in|(instance|type)of|delete|void)$/.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$1.toks.curLine |
| this$1.toks.lineStart = match.index + match[0].length |
| } |
| } |
| } |
| |
| lp.lookAhead = function(n) { |
| var this$1 = this; |
| |
| while (n > this.ahead.length) |
| this$1.ahead.push(this$1.readToken()) |
| return this.ahead[n - 1] |
| } |
| |
| function isDummy(node) { return node.name == "✖" } |
| |
| var lp$1 = LooseParser.prototype |
| |
| lp$1.parseTopLevel = function() { |
| var this$1 = this; |
| |
| 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$1.parseStatement()) |
| this.last = this.tok |
| if (this.options.ecmaVersion >= 6) { |
| node.sourceType = this.options.sourceType |
| } |
| return this.finishNode(node, "Program") |
| } |
| |
| lp$1.parseStatement = function() { |
| var this$1 = this; |
| |
| 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() |
| 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(true, isLet ? "let" : this.tok.value) |
| if (init$1.declarations.length === 1 && (this.tok.type === __acorn.tokTypes._in || this.isContextual("of"))) { |
| 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")) |
| 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$1.tok.type === __acorn.tokTypes._case || this$1.tok.type === __acorn.tokTypes._default) { |
| var isCase = this$1.tok.type === __acorn.tokTypes._case |
| if (cur) this$1.finishNode(cur, "SwitchCase") |
| node.cases.push(cur = this$1.startNode()) |
| cur.consequent = [] |
| this$1.next() |
| if (isCase) cur.test = this$1.parseExpression() |
| else cur.test = null |
| this$1.expect(__acorn.tokTypes.colon) |
| } else { |
| if (!cur) { |
| node.cases.push(cur = this$1.startNode()) |
| cur.consequent = [] |
| cur.test = null |
| } |
| cur.consequent.push(this$1.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() |
| this.expect(__acorn.tokTypes.parenL) |
| clause.param = this.toAssignable(this.parseExprAtom(), true) |
| this.expect(__acorn.tokTypes.parenR) |
| 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(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: |
| 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 this$1 = this; |
| |
| 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$1.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(noIn, kind) { |
| var this$1 = this; |
| |
| var node = this.startNode() |
| node.kind = kind |
| this.next() |
| node.declarations = [] |
| do { |
| var decl = this$1.startNode() |
| decl.id = this$1.options.ecmaVersion >= 6 ? this$1.toAssignable(this$1.parseExprAtom(), true) : this$1.parseIdent() |
| decl.init = this$1.eat(__acorn.tokTypes.eq) ? this$1.parseMaybeAssign(noIn) : null |
| node.declarations.push(this$1.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 this$1 = this; |
| |
| 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$1.semicolon()) continue |
| var method = this$1.startNode(), isGenerator, isAsync |
| if (this$1.options.ecmaVersion >= 6) { |
| method.static = false |
| isGenerator = this$1.eat(__acorn.tokTypes.star) |
| } |
| this$1.parsePropertyName(method) |
| if (isDummy(method.key)) { if (isDummy(this$1.parseMaybeAssign())) this$1.next(); this$1.eat(__acorn.tokTypes.comma); continue } |
| if (method.key.type === "Identifier" && !method.computed && method.key.name === "static" && |
| (this$1.tok.type != __acorn.tokTypes.parenL && this$1.tok.type != __acorn.tokTypes.braceL)) { |
| method.static = true |
| isGenerator = this$1.eat(__acorn.tokTypes.star) |
| this$1.parsePropertyName(method) |
| } else { |
| method.static = false |
| } |
| if (!method.computed && |
| method.key.type === "Identifier" && method.key.name === "async" && this$1.tok.type !== __acorn.tokTypes.parenL && |
| !this$1.canInsertSemicolon()) { |
| this$1.parsePropertyName(method) |
| isAsync = true |
| } else { |
| isAsync = false |
| } |
| if (this$1.options.ecmaVersion >= 5 && method.key.type === "Identifier" && |
| !method.computed && (method.key.name === "get" || method.key.name === "set") && |
| this$1.tok.type !== __acorn.tokTypes.parenL && this$1.tok.type !== __acorn.tokTypes.braceL) { |
| method.kind = method.key.name |
| this$1.parsePropertyName(method) |
| method.value = this$1.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$1.parseMethod(isGenerator, isAsync) |
| } |
| node.body.body.push(this$1.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 |
| 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 |
| node.params = this.parseFunctionParams() |
| node.body = this.parseBlock() |
| this.inAsync = oldInAsync |
| 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() |
| node.kind = "" |
| } 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.parseImportSpecifierList() |
| 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.parseImportSpecifierList = function() { |
| var this$1 = this; |
| |
| 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$1.startNode() |
| if (this$1.eat(__acorn.tokTypes.star)) { |
| elt$1.local = this$1.eatContextual("as") ? this$1.parseIdent() : this$1.dummyIdent() |
| this$1.finishNode(elt$1, "ImportNamespaceSpecifier") |
| } else { |
| if (this$1.isContextual("from")) break |
| elt$1.imported = this$1.parseIdent() |
| if (isDummy(elt$1.imported)) break |
| elt$1.local = this$1.eatContextual("as") ? this$1.parseIdent() : elt$1.imported |
| this$1.finishNode(elt$1, "ImportSpecifier") |
| } |
| elts.push(elt$1) |
| this$1.eat(__acorn.tokTypes.comma) |
| } |
| this.eat(__acorn.tokTypes.braceR) |
| this.popCx() |
| } |
| return elts |
| } |
| |
| lp$1.parseExportSpecifierList = function() { |
| var this$1 = this; |
| |
| 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$1.isContextual("from")) break |
| var elt = this$1.startNode() |
| elt.local = this$1.parseIdent() |
| if (isDummy(elt.local)) break |
| elt.exported = this$1.eatContextual("as") ? this$1.parseIdent() : elt.local |
| this$1.finishNode(elt, "ExportSpecifier") |
| elts.push(elt) |
| this$1.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 this$1 = this; |
| |
| 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$1.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 this$1 = this; |
| |
| var start = this.storeCurrentPos(), expr |
| if (this.options.ecmaVersion >= 8 && this.inAsync && this.toks.isContextual("await")) { |
| 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$1.startNodeAt(start) |
| node$2.operator = this$1.tok.value |
| node$2.prefix = false |
| node$2.argument = this$1.checkLVal(expr) |
| this$1.next() |
| expr = this$1.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) { |
| var this$1 = this; |
| |
| for (;;) { |
| if (this$1.curLineStart != line && this$1.curIndent <= startIndent && this$1.tokenStartsLine()) { |
| if (this$1.tok.type == __acorn.tokTypes.dot && this$1.curIndent == startIndent) |
| --startIndent |
| else |
| return base |
| } |
| |
| var maybeAsyncArrow = base.type === "Identifier" && base.name === "async" && !this$1.canInsertSemicolon() |
| |
| if (this$1.eat(__acorn.tokTypes.dot)) { |
| var node = this$1.startNodeAt(start) |
| node.object = base |
| if (this$1.curLineStart != line && this$1.curIndent <= startIndent && this$1.tokenStartsLine()) |
| node.property = this$1.dummyIdent() |
| else |
| node.property = this$1.parsePropertyAccessor() || this$1.dummyIdent() |
| node.computed = false |
| base = this$1.finishNode(node, "MemberExpression") |
| } else if (this$1.tok.type == __acorn.tokTypes.bracketL) { |
| this$1.pushCx() |
| this$1.next() |
| var node$1 = this$1.startNodeAt(start) |
| node$1.object = base |
| node$1.property = this$1.parseExpression() |
| node$1.computed = true |
| this$1.popCx() |
| this$1.expect(__acorn.tokTypes.bracketR) |
| base = this$1.finishNode(node$1, "MemberExpression") |
| } else if (!noCalls && this$1.tok.type == __acorn.tokTypes.parenL) { |
| var exprList = this$1.parseExprList(__acorn.tokTypes.parenR) |
| if (maybeAsyncArrow && this$1.eat(__acorn.tokTypes.arrow)) |
| return this$1.parseArrowExpression(this$1.startNodeAt(start), exprList, true) |
| var node$2 = this$1.startNodeAt(start) |
| node$2.callee = base |
| node$2.arguments = exprList |
| base = this$1.finishNode(node$2, "CallExpression") |
| } else if (this$1.tok.type == __acorn.tokTypes.backQuote) { |
| var node$3 = this$1.startNodeAt(start) |
| node$3.tag = base |
| node$3.quasi = this$1.parseTemplate() |
| base = this$1.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) |
| 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() |
| |
| default: |
| return this.dummyIdent() |
| } |
| } |
| |
| 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() |
| 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 this$1 = this; |
| |
| var node = this.startNode() |
| this.next() |
| node.expressions = [] |
| var curElt = this.parseTemplateElement() |
| node.quasis = [curElt] |
| while (!curElt.tail) { |
| this$1.next() |
| node.expressions.push(this$1.parseExpression()) |
| if (this$1.expect(__acorn.tokTypes.braceR)) { |
| curElt = this$1.parseTemplateElement() |
| } else { |
| curElt = this$1.startNode() |
| curElt.value = {cooked: "", raw: ""} |
| curElt.tail = true |
| this$1.finishNode(curElt, "TemplateElement") |
| } |
| node.quasis.push(curElt) |
| } |
| this.expect(__acorn.tokTypes.backQuote) |
| return this.finishNode(node, "TemplateLiteral") |
| } |
| |
| lp$2.parseObj = function() { |
| var this$1 = this; |
| |
| 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$1.startNode(), isGenerator, isAsync, start |
| if (this$1.options.ecmaVersion >= 6) { |
| start = this$1.storeCurrentPos() |
| prop.method = false |
| prop.shorthand = false |
| isGenerator = this$1.eat(__acorn.tokTypes.star) |
| } |
| this$1.parsePropertyName(prop) |
| if (!prop.computed && |
| prop.key.type === "Identifier" && prop.key.name === "async" && this$1.tok.type !== __acorn.tokTypes.parenL && |
| this$1.tok.type !== __acorn.tokTypes.colon && !this$1.canInsertSemicolon()) { |
| this$1.parsePropertyName(prop) |
| isAsync = true |
| } else { |
| isAsync = false |
| } |
| if (isDummy(prop.key)) { if (isDummy(this$1.parseMaybeAssign())) this$1.next(); this$1.eat(__acorn.tokTypes.comma); continue } |
| if (this$1.eat(__acorn.tokTypes.colon)) { |
| prop.kind = "init" |
| prop.value = this$1.parseMaybeAssign() |
| } else if (this$1.options.ecmaVersion >= 6 && (this$1.tok.type === __acorn.tokTypes.parenL || this$1.tok.type === __acorn.tokTypes.braceL)) { |
| prop.kind = "init" |
| prop.method = true |
| prop.value = this$1.parseMethod(isGenerator, isAsync) |
| } else if (this$1.options.ecmaVersion >= 5 && prop.key.type === "Identifier" && |
| !prop.computed && (prop.key.name === "get" || prop.key.name === "set") && |
| (this$1.tok.type != __acorn.tokTypes.comma && this$1.tok.type != __acorn.tokTypes.braceR)) { |
| prop.kind = prop.key.name |
| this$1.parsePropertyName(prop) |
| prop.value = this$1.parseMethod(false) |
| } else { |
| prop.kind = "init" |
| if (this$1.options.ecmaVersion >= 6) { |
| if (this$1.eat(__acorn.tokTypes.eq)) { |
| var assign = this$1.startNodeAt(start) |
| assign.operator = "=" |
| assign.left = prop.key |
| assign.right = this$1.parseMaybeAssign() |
| prop.value = this$1.finishNode(assign, "AssignmentExpression") |
| } else { |
| prop.value = prop.key |
| } |
| } else { |
| prop.value = this$1.dummyIdent() |
| } |
| prop.shorthand = true |
| } |
| node.properties.push(this$1.finishNode(prop, "Property")) |
| this$1.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) { |
| var this$1 = this; |
| |
| if (!node || node.type == "Identifier" || (node.type == "MemberExpression" && !binding)) { |
| // Okay |
| } else if (node.type == "ParenthesizedExpression") { |
| node.expression = this.toAssignable(node.expression, binding) |
| } else if (this.options.ecmaVersion < 6) { |
| return this.dummyIdent() |
| } else if (node.type == "ObjectExpression") { |
| node.type = "ObjectPattern" |
| var props = node.properties |
| for (var i = 0; i < props.length; i++) |
| props[i].value = this$1.toAssignable(props[i].value, binding) |
| } else if (node.type == "ArrayExpression") { |
| node.type = "ArrayPattern" |
| this.toAssignableList(node.elements, binding) |
| } else if (node.type == "SpreadElement") { |
| node.type = "RestElement" |
| node.argument = 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) { |
| var this$1 = this; |
| |
| for (var i = 0; i < exprList.length; i++) |
| exprList[i] = this$1.toAssignable(exprList[i], 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 |
| this.initFunction(node) |
| if (this.options.ecmaVersion >= 6) |
| node.generator = !!isGenerator |
| if (this.options.ecmaVersion >= 8) |
| node.async = !!isAsync |
| this.inAsync = node.async |
| node.params = this.parseFunctionParams() |
| node.expression = this.options.ecmaVersion >= 6 && this.tok.type !== __acorn.tokTypes.braceL |
| node.body = node.expression ? this.parseMaybeAssign() : this.parseBlock() |
| this.inAsync = oldInAsync |
| return this.finishNode(node, "FunctionExpression") |
| } |
| |
| lp$2.parseArrowExpression = function(node, params, isAsync) { |
| var oldInAsync = this.inAsync |
| this.initFunction(node) |
| if (this.options.ecmaVersion >= 8) |
| node.async = !!isAsync |
| this.inAsync = node.async |
| node.params = this.toAssignableList(params, true) |
| node.expression = this.tok.type !== __acorn.tokTypes.braceL |
| node.body = node.expression ? this.parseMaybeAssign() : this.parseBlock() |
| this.inAsync = oldInAsync |
| return this.finishNode(node, "ArrowFunctionExpression") |
| } |
| |
| lp$2.parseExprList = function(close, allowEmpty) { |
| var this$1 = this; |
| |
| this.pushCx() |
| var indent = this.curIndent, line = this.curLineStart, elts = [] |
| this.next() // Opening bracket |
| while (!this.closes(close, indent + 1, line)) { |
| if (this$1.eat(__acorn.tokTypes.comma)) { |
| elts.push(allowEmpty ? null : this$1.dummyIdent()) |
| continue |
| } |
| var elt = this$1.parseMaybeAssign() |
| if (isDummy(elt)) { |
| if (this$1.closes(close, indent, line)) break |
| this$1.next() |
| } else { |
| elts.push(elt) |
| } |
| this$1.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 |
| // |
| // This module provides an alternative parser (`parse_dammit`) that |
| // exposes that same interface as `parse`, but will try to parse |
| // anything as JavaScript, repairing syntax error the best it can. |
| // There are circumstances in which it will raise an error and give |
| // up, but they are very rare. The resulting AST will be a mostly |
| // valid JavaScript AST (as per the [Mozilla parser API][api], except |
| // that: |
| // |
| // - Return outside functions is allowed |
| // |
| // - Label consistency (no conflicts, break only to existing labels) |
| // is not enforced. |
| // |
| // - Bogus Identifier nodes with a name of `"✖"` are inserted whenever |
| // the parser got too confused to return anything meaningful. |
| // |
| // [api]: https://developer.mozilla.org/en-US/docs/SpiderMonkey/Parser_API |
| // |
| // The expected use for this is to *first* try `acorn.parse`, and only |
| // if that fails switch to `parse_dammit`. The loose parser might |
| // parse badly indented code incorrectly, so **don't** use it as |
| // your default parser. |
| // |
| // Quite a lot of acorn.js is duplicated here. The alternative was to |
| // add a *lot* of extra cruft to that file, making it less readable |
| // and slower. Copying and editing the code allowed me to make |
| // invasive changes and simplifications without creating a complicated |
| // tangle. |
| |
| __acorn.defaultOptions.tabSize = 4 |
| |
| // eslint-disable-next-line camelcase |
| function parse_dammit(input, options) { |
| var p = new LooseParser(input, options) |
| p.next() |
| return p.parseTopLevel() |
| } |
| |
| __acorn.addLooseExports(parse_dammit, LooseParser, pluginsLoose) |
| |
| exports.parse_dammit = parse_dammit; |
| exports.LooseParser = LooseParser; |
| exports.pluginsLoose = pluginsLoose; |
| |
| Object.defineProperty(exports, '__esModule', { value: true }); |
| |
| }))); |
| // clang-format on |