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diff --git a/tools/node_modules/eslint/node_modules/acorn-jsx/node_modules/acorn/src/statement.js b/tools/node_modules/eslint/node_modules/acorn-jsx/node_modules/acorn/src/statement.js
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+++ b/tools/node_modules/eslint/node_modules/acorn-jsx/node_modules/acorn/src/statement.js
@@ -0,0 +1,654 @@
+import {types as tt} from "./tokentype"
+import {Parser} from "./state"
+import {lineBreak, skipWhiteSpace} from "./whitespace"
+import {isIdentifierStart, isIdentifierChar} from "./identifier"
+import {DestructuringErrors} from "./parseutil"
+
+const pp = Parser.prototype
+
+// ### Statement parsing
+
+// Parse a program. Initializes the parser, reads any number of
+// statements, and wraps them in a Program node. Optionally takes a
+// `program` argument. If present, the statements will be appended
+// to its body instead of creating a new node.
+
+pp.parseTopLevel = function(node) {
+ let first = true
+ if (!node.body) node.body = []
+ while (this.type !== tt.eof) {
+ let stmt = this.parseStatement(true, true)
+ node.body.push(stmt)
+ if (first) {
+ if (this.isUseStrict(stmt)) this.setStrict(true)
+ first = false
+ }
+ }
+ this.next()
+ if (this.options.ecmaVersion >= 6) {
+ node.sourceType = this.options.sourceType
+ }
+ return this.finishNode(node, "Program")
+}
+
+const loopLabel = {kind: "loop"}, switchLabel = {kind: "switch"}
+
+pp.isLet = function() {
+ if (this.type !== tt.name || this.options.ecmaVersion < 6 || this.value != "let") return false
+ skipWhiteSpace.lastIndex = this.pos
+ let skip = skipWhiteSpace.exec(this.input)
+ let next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next)
+ if (nextCh === 91 || nextCh == 123) return true // '{' and '['
+ if (isIdentifierStart(nextCh, true)) {
+ for (var pos = next + 1; isIdentifierChar(this.input.charCodeAt(pos), true); ++pos) {}
+ let ident = this.input.slice(next, pos)
+ if (!this.isKeyword(ident)) return true
+ }
+ return false
+}
+
+// Parse a single statement.
+//
+// If expecting a statement and finding a slash operator, parse a
+// regular expression literal. This is to handle cases like
+// `if (foo) /blah/.exec(foo)`, where looking at the previous token
+// does not help.
+
+pp.parseStatement = function(declaration, topLevel) {
+ let starttype = this.type, node = this.startNode(), kind
+
+ if (this.isLet()) {
+ starttype = tt._var
+ kind = "let"
+ }
+
+ // Most types of statements are recognized by the keyword they
+ // start with. Many are trivial to parse, some require a bit of
+ // complexity.
+
+ switch (starttype) {
+ case tt._break: case tt._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
+ case tt._debugger: return this.parseDebuggerStatement(node)
+ case tt._do: return this.parseDoStatement(node)
+ case tt._for: return this.parseForStatement(node)
+ case tt._function:
+ if (!declaration && this.options.ecmaVersion >= 6) this.unexpected()
+ return this.parseFunctionStatement(node)
+ case tt._class:
+ if (!declaration) this.unexpected()
+ return this.parseClass(node, true)
+ case tt._if: return this.parseIfStatement(node)
+ case tt._return: return this.parseReturnStatement(node)
+ case tt._switch: return this.parseSwitchStatement(node)
+ case tt._throw: return this.parseThrowStatement(node)
+ case tt._try: return this.parseTryStatement(node)
+ case tt._const: case tt._var:
+ kind = kind || this.value
+ if (!declaration && kind != "var") this.unexpected()
+ return this.parseVarStatement(node, kind)
+ case tt._while: return this.parseWhileStatement(node)
+ case tt._with: return this.parseWithStatement(node)
+ case tt.braceL: return this.parseBlock()
+ case tt.semi: return this.parseEmptyStatement(node)
+ case tt._export:
+ case tt._import:
+ if (!this.options.allowImportExportEverywhere) {
+ if (!topLevel)
+ this.raise(this.start, "'import' and 'export' may only appear at the top level")
+ if (!this.inModule)
+ this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'")
+ }
+ return starttype === tt._import ? this.parseImport(node) : this.parseExport(node)
+
+ // If the statement does not start with a statement keyword or a
+ // brace, it's an ExpressionStatement or LabeledStatement. We
+ // simply start parsing an expression, and afterwards, if the
+ // next token is a colon and the expression was a simple
+ // Identifier node, we switch to interpreting it as a label.
+ default:
+ let maybeName = this.value, expr = this.parseExpression()
+ if (starttype === tt.name && expr.type === "Identifier" && this.eat(tt.colon))
+ return this.parseLabeledStatement(node, maybeName, expr)
+ else return this.parseExpressionStatement(node, expr)
+ }
+}
+
+pp.parseBreakContinueStatement = function(node, keyword) {
+ let isBreak = keyword == "break"
+ this.next()
+ if (this.eat(tt.semi) || this.insertSemicolon()) node.label = null
+ else if (this.type !== tt.name) this.unexpected()
+ else {
+ node.label = this.parseIdent()
+ this.semicolon()
+ }
+
+ // Verify that there is an actual destination to break or
+ // continue to.
+ for (var i = 0; i < this.labels.length; ++i) {
+ let lab = this.labels[i]
+ if (node.label == null || lab.name === node.label.name) {
+ if (lab.kind != null && (isBreak || lab.kind === "loop")) break
+ if (node.label && isBreak) break
+ }
+ }
+ if (i === this.labels.length) this.raise(node.start, "Unsyntactic " + keyword)
+ return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
+}
+
+pp.parseDebuggerStatement = function(node) {
+ this.next()
+ this.semicolon()
+ return this.finishNode(node, "DebuggerStatement")
+}
+
+pp.parseDoStatement = function(node) {
+ this.next()
+ this.labels.push(loopLabel)
+ node.body = this.parseStatement(false)
+ this.labels.pop()
+ this.expect(tt._while)
+ node.test = this.parseParenExpression()
+ if (this.options.ecmaVersion >= 6)
+ this.eat(tt.semi)
+ else
+ this.semicolon()
+ return this.finishNode(node, "DoWhileStatement")
+}
+
+// Disambiguating between a `for` and a `for`/`in` or `for`/`of`
+// loop is non-trivial. Basically, we have to parse the init `var`
+// statement or expression, disallowing the `in` operator (see
+// the second parameter to `parseExpression`), and then check
+// whether the next token is `in` or `of`. When there is no init
+// part (semicolon immediately after the opening parenthesis), it
+// is a regular `for` loop.
+
+pp.parseForStatement = function(node) {
+ this.next()
+ this.labels.push(loopLabel)
+ this.expect(tt.parenL)
+ if (this.type === tt.semi) return this.parseFor(node, null)
+ let isLet = this.isLet()
+ if (this.type === tt._var || this.type === tt._const || isLet) {
+ let init = this.startNode(), kind = isLet ? "let" : this.value
+ this.next()
+ this.parseVar(init, true, kind)
+ this.finishNode(init, "VariableDeclaration")
+ if ((this.type === tt._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init.declarations.length === 1 &&
+ !(kind !== "var" && init.declarations[0].init))
+ return this.parseForIn(node, init)
+ return this.parseFor(node, init)
+ }
+ let refDestructuringErrors = new DestructuringErrors
+ let init = this.parseExpression(true, refDestructuringErrors)
+ if (this.type === tt._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
+ this.checkPatternErrors(refDestructuringErrors, true)
+ this.toAssignable(init)
+ this.checkLVal(init)
+ return this.parseForIn(node, init)
+ } else {
+ this.checkExpressionErrors(refDestructuringErrors, true)
+ }
+ return this.parseFor(node, init)
+}
+
+pp.parseFunctionStatement = function(node) {
+ this.next()
+ return this.parseFunction(node, true)
+}
+
+pp.parseIfStatement = function(node) {
+ this.next()
+ node.test = this.parseParenExpression()
+ node.consequent = this.parseStatement(false)
+ node.alternate = this.eat(tt._else) ? this.parseStatement(false) : null
+ return this.finishNode(node, "IfStatement")
+}
+
+pp.parseReturnStatement = function(node) {
+ if (!this.inFunction && !this.options.allowReturnOutsideFunction)
+ this.raise(this.start, "'return' outside of function")
+ this.next()
+
+ // In `return` (and `break`/`continue`), the keywords with
+ // optional arguments, we eagerly look for a semicolon or the
+ // possibility to insert one.
+
+ if (this.eat(tt.semi) || this.insertSemicolon()) node.argument = null
+ else { node.argument = this.parseExpression(); this.semicolon() }
+ return this.finishNode(node, "ReturnStatement")
+}
+
+pp.parseSwitchStatement = function(node) {
+ this.next()
+ node.discriminant = this.parseParenExpression()
+ node.cases = []
+ this.expect(tt.braceL)
+ this.labels.push(switchLabel)
+
+ // Statements under must be grouped (by label) in SwitchCase
+ // nodes. `cur` is used to keep the node that we are currently
+ // adding statements to.
+
+ for (var cur, sawDefault = false; this.type != tt.braceR;) {
+ if (this.type === tt._case || this.type === tt._default) {
+ let isCase = this.type === tt._case
+ if (cur) this.finishNode(cur, "SwitchCase")
+ node.cases.push(cur = this.startNode())
+ cur.consequent = []
+ this.next()
+ if (isCase) {
+ cur.test = this.parseExpression()
+ } else {
+ if (sawDefault) this.raiseRecoverable(this.lastTokStart, "Multiple default clauses")
+ sawDefault = true
+ cur.test = null
+ }
+ this.expect(tt.colon)
+ } else {
+ if (!cur) this.unexpected()
+ cur.consequent.push(this.parseStatement(true))
+ }
+ }
+ if (cur) this.finishNode(cur, "SwitchCase")
+ this.next() // Closing brace
+ this.labels.pop()
+ return this.finishNode(node, "SwitchStatement")
+}
+
+pp.parseThrowStatement = function(node) {
+ this.next()
+ if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start)))
+ this.raise(this.lastTokEnd, "Illegal newline after throw")
+ node.argument = this.parseExpression()
+ this.semicolon()
+ return this.finishNode(node, "ThrowStatement")
+}
+
+// Reused empty array added for node fields that are always empty.
+
+const empty = []
+
+pp.parseTryStatement = function(node) {
+ this.next()
+ node.block = this.parseBlock()
+ node.handler = null
+ if (this.type === tt._catch) {
+ let clause = this.startNode()
+ this.next()
+ this.expect(tt.parenL)
+ clause.param = this.parseBindingAtom()
+ this.checkLVal(clause.param, true)
+ this.expect(tt.parenR)
+ clause.body = this.parseBlock()
+ node.handler = this.finishNode(clause, "CatchClause")
+ }
+ node.finalizer = this.eat(tt._finally) ? this.parseBlock() : null
+ if (!node.handler && !node.finalizer)
+ this.raise(node.start, "Missing catch or finally clause")
+ return this.finishNode(node, "TryStatement")
+}
+
+pp.parseVarStatement = function(node, kind) {
+ this.next()
+ this.parseVar(node, false, kind)
+ this.semicolon()
+ return this.finishNode(node, "VariableDeclaration")
+}
+
+pp.parseWhileStatement = function(node) {
+ this.next()
+ node.test = this.parseParenExpression()
+ this.labels.push(loopLabel)
+ node.body = this.parseStatement(false)
+ this.labels.pop()
+ return this.finishNode(node, "WhileStatement")
+}
+
+pp.parseWithStatement = function(node) {
+ if (this.strict) this.raise(this.start, "'with' in strict mode")
+ this.next()
+ node.object = this.parseParenExpression()
+ node.body = this.parseStatement(false)
+ return this.finishNode(node, "WithStatement")
+}
+
+pp.parseEmptyStatement = function(node) {
+ this.next()
+ return this.finishNode(node, "EmptyStatement")
+}
+
+pp.parseLabeledStatement = function(node, maybeName, expr) {
+ for (let i = 0; i < this.labels.length; ++i)
+ if (this.labels[i].name === maybeName) this.raise(expr.start, "Label '" + maybeName + "' is already declared")
+ let kind = this.type.isLoop ? "loop" : this.type === tt._switch ? "switch" : null
+ for (let i = this.labels.length - 1; i >= 0; i--) {
+ let label = this.labels[i]
+ if (label.statementStart == node.start) {
+ label.statementStart = this.start
+ label.kind = kind
+ } else break
+ }
+ this.labels.push({name: maybeName, kind: kind, statementStart: this.start})
+ node.body = this.parseStatement(true)
+ this.labels.pop()
+ node.label = expr
+ return this.finishNode(node, "LabeledStatement")
+}
+
+pp.parseExpressionStatement = function(node, expr) {
+ node.expression = expr
+ this.semicolon()
+ return this.finishNode(node, "ExpressionStatement")
+}
+
+// Parse a semicolon-enclosed block of statements, handling `"use
+// strict"` declarations when `allowStrict` is true (used for
+// function bodies).
+
+pp.parseBlock = function(allowStrict) {
+ let node = this.startNode(), first = true, oldStrict
+ node.body = []
+ this.expect(tt.braceL)
+ while (!this.eat(tt.braceR)) {
+ let stmt = this.parseStatement(true)
+ node.body.push(stmt)
+ if (first && allowStrict && this.isUseStrict(stmt)) {
+ oldStrict = this.strict
+ this.setStrict(this.strict = true)
+ }
+ first = false
+ }
+ if (oldStrict === false) this.setStrict(false)
+ return this.finishNode(node, "BlockStatement")
+}
+
+// Parse a regular `for` loop. The disambiguation code in
+// `parseStatement` will already have parsed the init statement or
+// expression.
+
+pp.parseFor = function(node, init) {
+ node.init = init
+ this.expect(tt.semi)
+ node.test = this.type === tt.semi ? null : this.parseExpression()
+ this.expect(tt.semi)
+ node.update = this.type === tt.parenR ? null : this.parseExpression()
+ this.expect(tt.parenR)
+ node.body = this.parseStatement(false)
+ this.labels.pop()
+ return this.finishNode(node, "ForStatement")
+}
+
+// Parse a `for`/`in` and `for`/`of` loop, which are almost
+// same from parser's perspective.
+
+pp.parseForIn = function(node, init) {
+ let type = this.type === tt._in ? "ForInStatement" : "ForOfStatement"
+ this.next()
+ node.left = init
+ node.right = this.parseExpression()
+ this.expect(tt.parenR)
+ node.body = this.parseStatement(false)
+ this.labels.pop()
+ return this.finishNode(node, type)
+}
+
+// Parse a list of variable declarations.
+
+pp.parseVar = function(node, isFor, kind) {
+ node.declarations = []
+ node.kind = kind
+ for (;;) {
+ let decl = this.startNode()
+ this.parseVarId(decl)
+ if (this.eat(tt.eq)) {
+ decl.init = this.parseMaybeAssign(isFor)
+ } else if (kind === "const" && !(this.type === tt._in || (this.options.ecmaVersion >= 6 && this.isContextual("of")))) {
+ this.unexpected()
+ } else if (decl.id.type != "Identifier" && !(isFor && (this.type === tt._in || this.isContextual("of")))) {
+ this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value")
+ } else {
+ decl.init = null
+ }
+ node.declarations.push(this.finishNode(decl, "VariableDeclarator"))
+ if (!this.eat(tt.comma)) break
+ }
+ return node
+}
+
+pp.parseVarId = function(decl) {
+ decl.id = this.parseBindingAtom()
+ this.checkLVal(decl.id, true)
+}
+
+// Parse a function declaration or literal (depending on the
+// `isStatement` parameter).
+
+pp.parseFunction = function(node, isStatement, allowExpressionBody) {
+ this.initFunction(node)
+ if (this.options.ecmaVersion >= 6)
+ node.generator = this.eat(tt.star)
+ var oldInGen = this.inGenerator
+ this.inGenerator = node.generator
+ if (isStatement || this.type === tt.name)
+ node.id = this.parseIdent()
+ this.parseFunctionParams(node)
+ this.parseFunctionBody(node, allowExpressionBody)
+ this.inGenerator = oldInGen
+ return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression")
+}
+
+pp.parseFunctionParams = function(node) {
+ this.expect(tt.parenL)
+ node.params = this.parseBindingList(tt.parenR, false, false, true)
+}
+
+// Parse a class declaration or literal (depending on the
+// `isStatement` parameter).
+
+pp.parseClass = function(node, isStatement) {
+ this.next()
+ this.parseClassId(node, isStatement)
+ this.parseClassSuper(node)
+ let classBody = this.startNode()
+ let hadConstructor = false
+ classBody.body = []
+ this.expect(tt.braceL)
+ while (!this.eat(tt.braceR)) {
+ if (this.eat(tt.semi)) continue
+ let method = this.startNode()
+ let isGenerator = this.eat(tt.star)
+ let isMaybeStatic = this.type === tt.name && this.value === "static"
+ this.parsePropertyName(method)
+ method.static = isMaybeStatic && this.type !== tt.parenL
+ if (method.static) {
+ if (isGenerator) this.unexpected()
+ isGenerator = this.eat(tt.star)
+ this.parsePropertyName(method)
+ }
+ method.kind = "method"
+ let isGetSet = false
+ if (!method.computed) {
+ let {key} = method
+ if (!isGenerator && key.type === "Identifier" && this.type !== tt.parenL && (key.name === "get" || key.name === "set")) {
+ isGetSet = true
+ method.kind = key.name
+ key = this.parsePropertyName(method)
+ }
+ if (!method.static && (key.type === "Identifier" && key.name === "constructor" ||
+ key.type === "Literal" && key.value === "constructor")) {
+ if (hadConstructor) this.raise(key.start, "Duplicate constructor in the same class")
+ if (isGetSet) this.raise(key.start, "Constructor can't have get/set modifier")
+ if (isGenerator) this.raise(key.start, "Constructor can't be a generator")
+ method.kind = "constructor"
+ hadConstructor = true
+ }
+ }
+ this.parseClassMethod(classBody, method, isGenerator)
+ if (isGetSet) {
+ let paramCount = method.kind === "get" ? 0 : 1
+ if (method.value.params.length !== paramCount) {
+ let start = method.value.start
+ if (method.kind === "get")
+ this.raiseRecoverable(start, "getter should have no params")
+ else
+ this.raiseRecoverable(start, "setter should have exactly one param")
+ }
+ if (method.kind === "set" && method.value.params[0].type === "RestElement")
+ this.raise(method.value.params[0].start, "Setter cannot use rest params")
+ }
+ }
+ node.body = this.finishNode(classBody, "ClassBody")
+ return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
+}
+
+pp.parseClassMethod = function(classBody, method, isGenerator) {
+ method.value = this.parseMethod(isGenerator)
+ classBody.body.push(this.finishNode(method, "MethodDefinition"))
+}
+
+pp.parseClassId = function(node, isStatement) {
+ node.id = this.type === tt.name ? this.parseIdent() : isStatement ? this.unexpected() : null
+}
+
+pp.parseClassSuper = function(node) {
+ node.superClass = this.eat(tt._extends) ? this.parseExprSubscripts() : null
+}
+
+// Parses module export declaration.
+
+pp.parseExport = function(node) {
+ this.next()
+ // export * from '...'
+ if (this.eat(tt.star)) {
+ this.expectContextual("from")
+ node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected()
+ this.semicolon()
+ return this.finishNode(node, "ExportAllDeclaration")
+ }
+ if (this.eat(tt._default)) { // export default ...
+ let parens = this.type == tt.parenL
+ let expr = this.parseMaybeAssign()
+ let needsSemi = true
+ if (!parens && (expr.type == "FunctionExpression" ||
+ expr.type == "ClassExpression")) {
+ needsSemi = false
+ if (expr.id) {
+ expr.type = expr.type == "FunctionExpression"
+ ? "FunctionDeclaration"
+ : "ClassDeclaration"
+ }
+ }
+ node.declaration = expr
+ if (needsSemi) this.semicolon()
+ return this.finishNode(node, "ExportDefaultDeclaration")
+ }
+ // export var|const|let|function|class ...
+ if (this.shouldParseExportStatement()) {
+ node.declaration = this.parseStatement(true)
+ node.specifiers = []
+ node.source = null
+ } else { // export { x, y as z } [from '...']
+ node.declaration = null
+ node.specifiers = this.parseExportSpecifiers()
+ if (this.eatContextual("from")) {
+ node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected()
+ } else {
+ // check for keywords used as local names
+ for (let i = 0; i < node.specifiers.length; i++) {
+ if (this.keywords.test(node.specifiers[i].local.name) || this.reservedWords.test(node.specifiers[i].local.name)) {
+ this.unexpected(node.specifiers[i].local.start)
+ }
+ }
+
+ node.source = null
+ }
+ this.semicolon()
+ }
+ return this.finishNode(node, "ExportNamedDeclaration")
+}
+
+pp.shouldParseExportStatement = function() {
+ return this.type.keyword || this.isLet()
+}
+
+// Parses a comma-separated list of module exports.
+
+pp.parseExportSpecifiers = function() {
+ let nodes = [], first = true
+ // export { x, y as z } [from '...']
+ this.expect(tt.braceL)
+ while (!this.eat(tt.braceR)) {
+ if (!first) {
+ this.expect(tt.comma)
+ if (this.afterTrailingComma(tt.braceR)) break
+ } else first = false
+
+ let node = this.startNode()
+ node.local = this.parseIdent(this.type === tt._default)
+ node.exported = this.eatContextual("as") ? this.parseIdent(true) : node.local
+ nodes.push(this.finishNode(node, "ExportSpecifier"))
+ }
+ return nodes
+}
+
+// Parses import declaration.
+
+pp.parseImport = function(node) {
+ this.next()
+ // import '...'
+ if (this.type === tt.string) {
+ node.specifiers = empty
+ node.source = this.parseExprAtom()
+ } else {
+ node.specifiers = this.parseImportSpecifiers()
+ this.expectContextual("from")
+ node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected()
+ }
+ this.semicolon()
+ return this.finishNode(node, "ImportDeclaration")
+}
+
+// Parses a comma-separated list of module imports.
+
+pp.parseImportSpecifiers = function() {
+ let nodes = [], first = true
+ if (this.type === tt.name) {
+ // import defaultObj, { x, y as z } from '...'
+ let node = this.startNode()
+ node.local = this.parseIdent()
+ this.checkLVal(node.local, true)
+ nodes.push(this.finishNode(node, "ImportDefaultSpecifier"))
+ if (!this.eat(tt.comma)) return nodes
+ }
+ if (this.type === tt.star) {
+ let node = this.startNode()
+ this.next()
+ this.expectContextual("as")
+ node.local = this.parseIdent()
+ this.checkLVal(node.local, true)
+ nodes.push(this.finishNode(node, "ImportNamespaceSpecifier"))
+ return nodes
+ }
+ this.expect(tt.braceL)
+ while (!this.eat(tt.braceR)) {
+ if (!first) {
+ this.expect(tt.comma)
+ if (this.afterTrailingComma(tt.braceR)) break
+ } else first = false
+
+ let node = this.startNode()
+ node.imported = this.parseIdent(true)
+ if (this.eatContextual("as")) {
+ node.local = this.parseIdent()
+ } else {
+ node.local = node.imported
+ if (this.isKeyword(node.local.name)) this.unexpected(node.local.start)
+ if (this.reservedWordsStrict.test(node.local.name)) this.raise(node.local.start, "The keyword '" + node.local.name + "' is reserved")
+ }
+ this.checkLVal(node.local, true)
+ nodes.push(this.finishNode(node, "ImportSpecifier"))
+ }
+ return nodes
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-11 13:15:09 +0000