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Test New PC

parent e65a993d
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node_modules/acorn-dynamic-import/node_modules/acorn/src/lval.js deleted 100644 → 0
View file @ e65a993d
import {types as tt} from "./tokentype"
import {Parser} from "./state"
import {has} from "./util"
const pp = Parser.prototype
// Convert existing expression atom to assignable pattern
// if possible.
pp.toAssignable = function(node, isBinding) {
if (this.options.ecmaVersion >= 6 && node) {
switch (node.type) {
case "Identifier":
if (this.inAsync && node.name === "await")
this.raise(node.start, "Can not use 'await' as identifier inside an async function")
break
case "ObjectPattern":
case "ArrayPattern":
break
case "ObjectExpression":
node.type = "ObjectPattern"
for (let i = 0; i < node.properties.length; i++) {
let prop = node.properties[i]
if (prop.kind !== "init") this.raise(prop.key.start, "Object pattern can't contain getter or setter")
this.toAssignable(prop.value, isBinding)
}
break
case "ArrayExpression":
node.type = "ArrayPattern"
this.toAssignableList(node.elements, isBinding)
break
case "AssignmentExpression":
if (node.operator === "=") {
node.type = "AssignmentPattern"
delete node.operator
this.toAssignable(node.left, isBinding)
// falls through to AssignmentPattern
} else {
this.raise(node.left.end, "Only '=' operator can be used for specifying default value.")
break
}
case "AssignmentPattern":
break
case "ParenthesizedExpression":
node.expression = this.toAssignable(node.expression, isBinding)
break
case "MemberExpression":
if (!isBinding) break
default:
this.raise(node.start, "Assigning to rvalue")
}
}
return node
}
// Convert list of expression atoms to binding list.
pp.toAssignableList = function(exprList, isBinding) {
let end = exprList.length
if (end) {
let last = exprList[end - 1]
if (last && last.type == "RestElement") {
--end
} else if (last && last.type == "SpreadElement") {
last.type = "RestElement"
let arg = last.argument
this.toAssignable(arg, isBinding)
if (arg.type !== "Identifier" && arg.type !== "MemberExpression" && arg.type !== "ArrayPattern")
this.unexpected(arg.start)
--end
}
if (isBinding && last && last.type === "RestElement" && last.argument.type !== "Identifier")
this.unexpected(last.argument.start)
}
for (let i = 0; i < end; i++) {
let elt = exprList[i]
if (elt) this.toAssignable(elt, isBinding)
}
return exprList
}
// Parses spread element.
pp.parseSpread = function(refDestructuringErrors) {
let node = this.startNode()
this.next()
node.argument = this.parseMaybeAssign(false, refDestructuringErrors)
return this.finishNode(node, "SpreadElement")
}
pp.parseRest = function(allowNonIdent) {
let node = this.startNode()
this.next()
// RestElement inside of a function parameter must be an identifier
if (allowNonIdent) node.argument = this.type === tt.name ? this.parseIdent() : this.unexpected()
else node.argument = this.type === tt.name || this.type === tt.bracketL ? this.parseBindingAtom() : this.unexpected()
return this.finishNode(node, "RestElement")
}
// Parses lvalue (assignable) atom.
pp.parseBindingAtom = function() {
if (this.options.ecmaVersion < 6) return this.parseIdent()
switch (this.type) {
case tt.name:
return this.parseIdent()
case tt.bracketL:
let node = this.startNode()
this.next()
node.elements = this.parseBindingList(tt.bracketR, true, true)
return this.finishNode(node, "ArrayPattern")
case tt.braceL:
return this.parseObj(true)
default:
this.unexpected()
}
}
pp.parseBindingList = function(close, allowEmpty, allowTrailingComma, allowNonIdent) {
let elts = [], first = true
while (!this.eat(close)) {
if (first) first = false
else this.expect(tt.comma)
if (allowEmpty && this.type === tt.comma) {
elts.push(null)
} else if (allowTrailingComma && this.afterTrailingComma(close)) {
break
} else if (this.type === tt.ellipsis) {
let rest = this.parseRest(allowNonIdent)
this.parseBindingListItem(rest)
elts.push(rest)
if (this.type === tt.comma) this.raise(this.start, "Comma is not permitted after the rest element")
this.expect(close)
break
} else {
let elem = this.parseMaybeDefault(this.start, this.startLoc)
this.parseBindingListItem(elem)
elts.push(elem)
}
}
return elts
}
pp.parseBindingListItem = function(param) {
return param
}
// Parses assignment pattern around given atom if possible.
pp.parseMaybeDefault = function(startPos, startLoc, left) {
left = left || this.parseBindingAtom()
if (this.options.ecmaVersion < 6 || !this.eat(tt.eq)) return left
let node = this.startNodeAt(startPos, startLoc)
node.left = left
node.right = this.parseMaybeAssign()
return this.finishNode(node, "AssignmentPattern")
}
// Verify that a node is an lval — something that can be assigned
// to.
pp.checkLVal = function(expr, isBinding, checkClashes) {
switch (expr.type) {
case "Identifier":
if (this.strict && this.reservedWordsStrictBind.test(expr.name))
this.raiseRecoverable(expr.start, (isBinding ? "Binding " : "Assigning to ") + expr.name + " in strict mode")
if (checkClashes) {
if (has(checkClashes, expr.name))
this.raiseRecoverable(expr.start, "Argument name clash")
checkClashes[expr.name] = true
}
break
case "MemberExpression":
if (isBinding) this.raiseRecoverable(expr.start, (isBinding ? "Binding" : "Assigning to") + " member expression")
break
case "ObjectPattern":
for (let i = 0; i < expr.properties.length; i++)
this.checkLVal(expr.properties[i].value, isBinding, checkClashes)
break
case "ArrayPattern":
for (let i = 0; i < expr.elements.length; i++) {
let elem = expr.elements[i]
if (elem) this.checkLVal(elem, isBinding, checkClashes)
}
break
case "AssignmentPattern":
this.checkLVal(expr.left, isBinding, checkClashes)
break
case "RestElement":
this.checkLVal(expr.argument, isBinding, checkClashes)
break
case "ParenthesizedExpression":
this.checkLVal(expr.expression, isBinding, checkClashes)
break
default:
this.raise(expr.start, (isBinding ? "Binding" : "Assigning to") + " rvalue")
}
}
node_modules/acorn-dynamic-import/node_modules/acorn/src/node.js deleted 100644 → 0
View file @ e65a993d
import {Parser} from "./state"
import {SourceLocation} from "./locutil"
export class Node {
constructor(parser, pos, loc) {
this.type = ""
this.start = pos
this.end = 0
if (parser.options.locations)
this.loc = new SourceLocation(parser, loc)
if (parser.options.directSourceFile)
this.sourceFile = parser.options.directSourceFile
if (parser.options.ranges)
this.range = [pos, 0]
}
}
// Start an AST node, attaching a start offset.
const pp = Parser.prototype
pp.startNode = function() {
return new Node(this, this.start, this.startLoc)
}
pp.startNodeAt = function(pos, loc) {
return new Node(this, pos, loc)
}
// Finish an AST node, adding `type` and `end` properties.
function finishNodeAt(node, type, pos, loc) {
node.type = type
node.end = pos
if (this.options.locations)
node.loc.end = loc
if (this.options.ranges)
node.range[1] = pos
return node
}
pp.finishNode = function(node, type) {
return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc)
}
// Finish node at given position
pp.finishNodeAt = function(node, type, pos, loc) {
return finishNodeAt.call(this, node, type, pos, loc)
}
node_modules/acorn-dynamic-import/node_modules/acorn/src/options.js deleted 100644 → 0
View file @ e65a993d
import {has, isArray} from "./util"
import {SourceLocation} from "./locutil"
// A second optional argument can be given to further configure
// the parser process. These options are recognized:
export const defaultOptions = {
// `ecmaVersion` indicates the ECMAScript version to parse. Must
// be either 3, 5, 6 (2015), 7 (2016), or 8 (2017). This influences support
// for strict mode, the set of reserved words, and support for
// new syntax features. The default is 7.
ecmaVersion: 7,
// `sourceType` indicates the mode the code should be parsed in.
// Can be either `"script"` or `"module"`. This influences global
// strict mode and parsing of `import` and `export` declarations.
sourceType: "script",
// `onInsertedSemicolon` can be a callback that will be called
// when a semicolon is automatically inserted. It will be passed
// th position of the comma as an offset, and if `locations` is
// enabled, it is given the location as a `{line, column}` object
// as second argument.
onInsertedSemicolon: null,
// `onTrailingComma` is similar to `onInsertedSemicolon`, but for
// trailing commas.
onTrailingComma: null,
// By default, reserved words are only enforced if ecmaVersion >= 5.
// Set `allowReserved` to a boolean value to explicitly turn this on
// an off. When this option has the value "never", reserved words
// and keywords can also not be used as property names.
allowReserved: null,
// When enabled, a return at the top level is not considered an
// error.
allowReturnOutsideFunction: false,
// When enabled, import/export statements are not constrained to
// appearing at the top of the program.
allowImportExportEverywhere: false,
// When enabled, hashbang directive in the beginning of file
// is allowed and treated as a line comment.
allowHashBang: false,
// When `locations` is on, `loc` properties holding objects with
// `start` and `end` properties in `{line, column}` form (with
// line being 1-based and column 0-based) will be attached to the
// nodes.
locations: false,
// A function can be passed as `onToken` option, which will
// cause Acorn to call that function with object in the same
// format as tokens returned from `tokenizer().getToken()`. Note
// that you are not allowed to call the parser from the
// callback—that will corrupt its internal state.
onToken: null,
// A function can be passed as `onComment` option, which will
// cause Acorn to call that function with `(block, text, start,
// end)` parameters whenever a comment is skipped. `block` is a
// boolean indicating whether this is a block (`/* */`) comment,
// `text` is the content of the comment, and `start` and `end` are
// character offsets that denote the start and end of the comment.
// When the `locations` option is on, two more parameters are
// passed, the full `{line, column}` locations of the start and
// end of the comments. Note that you are not allowed to call the
// parser from the callback—that will corrupt its internal state.
onComment: null,
// Nodes have their start and end characters offsets recorded in
// `start` and `end` properties (directly on the node, rather than
// the `loc` object, which holds line/column data. To also add a
// [semi-standardized][range] `range` property holding a `[start,
// end]` array with the same numbers, set the `ranges` option to
// `true`.
//
// [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678
ranges: false,
// It is possible to parse multiple files into a single AST by
// passing the tree produced by parsing the first file as
// `program` option in subsequent parses. This will add the
// toplevel forms of the parsed file to the `Program` (top) node
// of an existing parse tree.
program: null,
// When `locations` is on, you can pass this to record the source
// file in every node's `loc` object.
sourceFile: null,
// This value, if given, is stored in every node, whether
// `locations` is on or off.
directSourceFile: null,
// When enabled, parenthesized expressions are represented by
// (non-standard) ParenthesizedExpression nodes
preserveParens: false,
plugins: {}
}
// Interpret and default an options object
export function getOptions(opts) {
let options = {}
for (let opt in defaultOptions)
options[opt] = opts && has(opts, opt) ? opts[opt] : defaultOptions[opt]
if (options.ecmaVersion >= 2015)
options.ecmaVersion -= 2009
if (options.allowReserved == null)
options.allowReserved = options.ecmaVersion < 5
if (isArray(options.onToken)) {
let tokens = options.onToken
options.onToken = (token) => tokens.push(token)
}
if (isArray(options.onComment))
options.onComment = pushComment(options, options.onComment)
return options
}
function pushComment(options, array) {
return function (block, text, start, end, startLoc, endLoc) {
let comment = {
type: block ? 'Block' : 'Line',
value: text,
start: start,
end: end
}
if (options.locations)
comment.loc = new SourceLocation(this, startLoc, endLoc)
if (options.ranges)
comment.range = [start, end]
array.push(comment)
}
}
node_modules/acorn-dynamic-import/node_modules/acorn/src/parseutil.js deleted 100644 → 0
View file @ e65a993d
import {types as tt} from "./tokentype"
import {Parser} from "./state"
import {lineBreak, skipWhiteSpace} from "./whitespace"
const pp = Parser.prototype
// ## Parser utilities
const literal = /^(?:'((?:[^\']|\.)*)'|"((?:[^\"]|\.)*)"|;)/
pp.strictDirective = function(start) {
for (;;) {
skipWhiteSpace.lastIndex = start
start += skipWhiteSpace.exec(this.input)[0].length
let match = literal.exec(this.input.slice(start))
if (!match) return false
if ((match[1] || match[2]) == "use strict") return true
start += match[0].length
}
}
// Predicate that tests whether the next token is of the given
// type, and if yes, consumes it as a side effect.
pp.eat = function(type) {
if (this.type === type) {
this.next()
return true
} else {
return false
}
}
// Tests whether parsed token is a contextual keyword.
pp.isContextual = function(name) {
return this.type === tt.name && this.value === name
}
// Consumes contextual keyword if possible.
pp.eatContextual = function(name) {
return this.value === name && this.eat(tt.name)
}
// Asserts that following token is given contextual keyword.
pp.expectContextual = function(name) {
if (!this.eatContextual(name)) this.unexpected()
}
// Test whether a semicolon can be inserted at the current position.
pp.canInsertSemicolon = function() {
return this.type === tt.eof ||
this.type === tt.braceR ||
lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
}
pp.insertSemicolon = function() {
if (this.canInsertSemicolon()) {
if (this.options.onInsertedSemicolon)
this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc)
return true
}
}
// Consume a semicolon, or, failing that, see if we are allowed to
// pretend that there is a semicolon at this position.
pp.semicolon = function() {
if (!this.eat(tt.semi) && !this.insertSemicolon()) this.unexpected()
}
pp.afterTrailingComma = function(tokType, notNext) {
if (this.type == tokType) {
if (this.options.onTrailingComma)
this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc)
if (!notNext)
this.next()
return true
}
}
// Expect a token of a given type. If found, consume it, otherwise,
// raise an unexpected token error.
pp.expect = function(type) {
this.eat(type) || this.unexpected()
}
// Raise an unexpected token error.
pp.unexpected = function(pos) {
this.raise(pos != null ? pos : this.start, "Unexpected token")
}
export class DestructuringErrors {
constructor() {
this.shorthandAssign = this.trailingComma = this.parenthesizedAssign = this.parenthesizedBind = -1
}
}
pp.checkPatternErrors = function(refDestructuringErrors, isAssign) {
if (!refDestructuringErrors) return
if (refDestructuringErrors.trailingComma > -1)
this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element")
let parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind
if (parens > -1) this.raiseRecoverable(parens, "Parenthesized pattern")
}
pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
let pos = refDestructuringErrors ? refDestructuringErrors.shorthandAssign : -1
if (!andThrow) return pos >= 0
if (pos > -1) this.raise(pos, "Shorthand property assignments are valid only in destructuring patterns")
}
pp.checkYieldAwaitInDefaultParams = function() {
if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos))
this.raise(this.yieldPos, "Yield expression cannot be a default value")
if (this.awaitPos)
this.raise(this.awaitPos, "Await expression cannot be a default value")
}
pp.isSimpleAssignTarget = function(expr) {
if (expr.type === "ParenthesizedExpression")
return this.isSimpleAssignTarget(expr.expression)
return expr.type === "Identifier" || expr.type === "MemberExpression"
}
node_modules/acorn-dynamic-import/node_modules/acorn/src/state.js deleted 100644 → 0
View file @ e65a993d
import {reservedWords, keywords} from "./identifier"
import {types as tt} from "./tokentype"
import {lineBreak} from "./whitespace"
import {getOptions} from "./options"
// Registered plugins
export const plugins = {}
function keywordRegexp(words) {
return new RegExp("^(" + words.replace(/ /g, "|") + ")$")
}
export class Parser {
constructor(options, input, startPos) {
this.options = options = getOptions(options)
this.sourceFile = options.sourceFile
this.keywords = keywordRegexp(keywords[options.ecmaVersion >= 6 ? 6 : 5])
let reserved = ""
if (!options.allowReserved) {
for (let v = options.ecmaVersion;; v--)
if (reserved = reservedWords[v]) break
if (options.sourceType == "module") reserved += " await"
}
this.reservedWords = keywordRegexp(reserved)
let reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict
this.reservedWordsStrict = keywordRegexp(reservedStrict)
this.reservedWordsStrictBind = keywordRegexp(reservedStrict + " " + reservedWords.strictBind)
this.input = String(input)
// Used to signal to callers of `readWord1` whether the word
// contained any escape sequences. This is needed because words with
// escape sequences must not be interpreted as keywords.
this.containsEsc = false
// Load plugins
this.loadPlugins(options.plugins)
// Set up token state
// The current position of the tokenizer in the input.
if (startPos) {
this.pos = startPos
this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1
this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length
} else {
this.pos = this.lineStart = 0
this.curLine = 1
}
// Properties of the current token:
// Its type
this.type = tt.eof
// For tokens that include more information than their type, the value
this.value = null
// Its start and end offset
this.start = this.end = this.pos
// And, if locations are used, the {line, column} object
// corresponding to those offsets
this.startLoc = this.endLoc = this.curPosition()
// Position information for the previous token
this.lastTokEndLoc = this.lastTokStartLoc = null
this.lastTokStart = this.lastTokEnd = this.pos
// The context stack is used to superficially track syntactic
// context to predict whether a regular expression is allowed in a
// given position.
this.context = this.initialContext()
this.exprAllowed = true
// Figure out if it's a module code.
this.inModule = options.sourceType === "module"
this.strict = this.inModule || this.strictDirective(this.pos)
// Used to signify the start of a potential arrow function
this.potentialArrowAt = -1
// Flags to track whether we are in a function, a generator, an async function.
this.inFunction = this.inGenerator = this.inAsync = false
// Positions to delayed-check that yield/await does not exist in default parameters.
this.yieldPos = this.awaitPos = 0
// Labels in scope.
this.labels = []
// If enabled, skip leading hashbang line.
if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === '#!')
this.skipLineComment(2)
}
// DEPRECATED Kept for backwards compatibility until 3.0 in case a plugin uses them
isKeyword(word) { return this.keywords.test(word) }
isReservedWord(word) { return this.reservedWords.test(word) }
extend(name, f) {
this[name] = f(this[name])
}
loadPlugins(pluginConfigs) {
for (let name in pluginConfigs) {
let plugin = plugins[name]
if (!plugin) throw new Error("Plugin '" + name + "' not found")
plugin(this, pluginConfigs[name])
}
}
parse() {
let node = this.options.program || this.startNode()
this.nextToken()
return this.parseTopLevel(node)
}
}
node_modules/acorn-dynamic-import/node_modules/acorn/src/statement.js deleted 100644 → 0
View file @ e65a993d
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 exports = {}
if (!node.body) node.body = []
while (this.type !== tt.eof) {
let stmt = this.parseStatement(true, true, exports)
node.body.push(stmt)
}
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
}
// check 'async [no LineTerminator here] function'
// - 'async /*foo*/ function' is OK.
// - 'async /*\n*/ function' is invalid.
pp.isAsyncFunction = function() {
if (this.type !== tt.name || this.options.ecmaVersion < 8 || this.value != "async")
return false
skipWhiteSpace.lastIndex = this.pos
let skip = skipWhiteSpace.exec(this.input)
let next = this.pos + skip[0].length
return !lineBreak.test(this.input.slice(this.pos, next)) &&
this.input.slice(next, next + 8) === "function" &&
(next + 8 == this.input.length || !isIdentifierChar(this.input.charAt(next + 8)))
}
// 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, exports) {
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, false)
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, exports)
// If the statement does not start with a statement keyword or a
// brace, it's an ExpressionStatement or LabeledStatement. We
// simply start parsing an expression, and afterwards, if the
// next token is a colon and the expression was a simple
// Identifier node, we switch to interpreting it as a label.
default:
if (this.isAsyncFunction() && declaration) {
this.next()
return this.parseFunctionStatement(node, true)
}
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.toAssignable(init)
this.checkLVal(init)
this.checkPatternErrors(refDestructuringErrors, true)
return this.parseForIn(node, init)
} else {
this.checkExpressionErrors(refDestructuringErrors, true)
}
return this.parseFor(node, init)
}
pp.parseFunctionStatement = function(node, isAsync) {
this.next()
return this.parseFunction(node, true, false, isAsync)
}
pp.isFunction = function() {
return this.type === tt._function || this.isAsyncFunction()
}
pp.parseIfStatement = function(node) {
this.next()
node.test = this.parseParenExpression()
// allow function declarations in branches, but only in non-strict mode
node.consequent = this.parseStatement(!this.strict && this.isFunction())
node.alternate = this.eat(tt._else) ? this.parseStatement(!this.strict && this.isFunction()) : 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)
if (node.body.type == "ClassDeclaration" ||
node.body.type == "VariableDeclaration" && (this.strict || node.body.kind != "var") ||
node.body.type == "FunctionDeclaration" && (this.strict || node.body.generator))
this.raiseRecoverable(node.body.start, "Invalid labeled declaration")
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() {
let node = this.startNode()
node.body = []
this.expect(tt.braceL)
while (!this.eat(tt.braceR)) {
let stmt = this.parseStatement(true)
node.body.push(stmt)
}
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, isAsync) {
this.initFunction(node)
if (this.options.ecmaVersion >= 6 && !isAsync)
node.generator = this.eat(tt.star)
if (this.options.ecmaVersion >= 8)
node.async = !!isAsync
if (isStatement == null)
isStatement = this.type == tt.name
if (isStatement)
node.id = this.parseIdent()
let oldInGen = this.inGenerator, oldInAsync = this.inAsync,
oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldInFunc = this.inFunction
this.inGenerator = node.generator
this.inAsync = node.async
this.yieldPos = 0
this.awaitPos = 0
this.inFunction = true
if (!isStatement && this.type === tt.name)
node.id = this.parseIdent()
this.parseFunctionParams(node)
this.parseFunctionBody(node, allowExpressionBody)
this.inGenerator = oldInGen
this.inAsync = oldInAsync
this.yieldPos = oldYieldPos
this.awaitPos = oldAwaitPos
this.inFunction = oldInFunc
return this.finishNode(node, isStatement ? "FunctionDeclaration" : "FunctionExpression")
}
pp.parseFunctionParams = function(node) {
this.expect(tt.parenL)
node.params = this.parseBindingList(tt.parenR, false, this.options.ecmaVersion >= 8, true)
this.checkYieldAwaitInDefaultParams()
}
// Parse a class declaration or literal (depending on the
// `isStatement` parameter).
pp.parseClass = function(node, isStatement) {
this.next()
if (isStatement == null) isStatement = this.type === tt.name
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 isAsync = false
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)
}
if (this.options.ecmaVersion >= 8 && !isGenerator && !method.computed &&
method.key.type === "Identifier" && method.key.name === "async" && this.type !== tt.parenL &&
!this.canInsertSemicolon()) {
isAsync = true
this.parsePropertyName(method)
}
method.kind = "method"
let isGetSet = false
if (!method.computed) {
let {key} = method
if (!isGenerator && !isAsync && 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")
if (isAsync) this.raise(key.start, "Constructor can't be an async method")
method.kind = "constructor"
hadConstructor = true
}
}
this.parseClassMethod(classBody, method, isGenerator, isAsync)
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")
} else {
if (method.kind === "set" && method.value.params[0].type === "RestElement")
this.raiseRecoverable(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, isAsync) {
method.value = this.parseMethod(isGenerator, isAsync)
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, exports) {
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 ...
this.checkExport(exports, "default", this.lastTokStart)
let isAsync
if (this.type === tt._function || (isAsync = this.isAsyncFunction())) {
let fNode = this.startNode()
this.next()
if (isAsync) this.next()
node.declaration = this.parseFunction(fNode, null, false, isAsync)
} else if (this.type === tt._class) {
let cNode = this.startNode()
node.declaration = this.parseClass(cNode, null)
} else {
node.declaration = this.parseMaybeAssign()
this.semicolon()
}
return this.finishNode(node, "ExportDefaultDeclaration")
}
// export var|const|let|function|class ...
if (this.shouldParseExportStatement()) {
node.declaration = this.parseStatement(true)
if (node.declaration.type === "VariableDeclaration")
this.checkVariableExport(exports, node.declaration.declarations)
else
this.checkExport(exports, node.declaration.id.name, node.declaration.id.start)
node.specifiers = []
node.source = null
} else { // export { x, y as z } [from '...']
node.declaration = null
node.specifiers = this.parseExportSpecifiers(exports)
if (this.eatContextual("from")) {
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.checkExport = function(exports, name, pos) {
if (!exports) return
if (Object.prototype.hasOwnProperty.call(exports, name))
this.raiseRecoverable(pos, "Duplicate export '" + name + "'")
exports[name] = true
}
pp.checkPatternExport = function(exports, pat) {
let type = pat.type
if (type == "Identifier")
this.checkExport(exports, pat.name, pat.start)
else if (type == "ObjectPattern")
for (let i = 0; i < pat.properties.length; ++i)
this.checkPatternExport(exports, pat.properties[i].value)
else if (type == "ArrayPattern")
for (let i = 0; i < pat.elements.length; ++i) {
let elt = pat.elements[i]
if (elt) this.checkPatternExport(exports, elt)
}
else if (type == "AssignmentPattern")
this.checkPatternExport(exports, pat.left)
else if (type == "ParenthesizedExpression")
this.checkPatternExport(exports, pat.expression)
}
pp.checkVariableExport = function(exports, decls) {
if (!exports) return
for (let i = 0; i < decls.length; i++)
this.checkPatternExport(exports, decls[i].id)
}
pp.shouldParseExportStatement = function() {
return this.type.keyword === "var"
|| this.type.keyword === "const"
|| this.type.keyword === "class"
|| this.type.keyword === "function"
|| this.isLet()
|| this.isAsyncFunction()
}
// Parses a comma-separated list of module exports.
pp.parseExportSpecifiers = function(exports) {
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(true)
node.exported = this.eatContextual("as") ? this.parseIdent(true) : node.local
this.checkExport(exports, node.exported.name, node.exported.start)
nodes.push(this.finishNode(node, "ExportSpecifier"))
}
return nodes
}
// 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.raiseRecoverable(node.local.start, "The keyword '" + node.local.name + "' is reserved")
}
this.checkLVal(node.local, true)
nodes.push(this.finishNode(node, "ImportSpecifier"))
}
return nodes
}
node_modules/acorn-dynamic-import/node_modules/acorn/src/tokencontext.js deleted 100644 → 0
View file @ e65a993d
// The algorithm used to determine whether a regexp can appear at a
// given point in the program is loosely based on sweet.js' approach.
// See https://github.com/mozilla/sweet.js/wiki/design
import {Parser} from "./state"
import {types as tt} from "./tokentype"
import {lineBreak} from "./whitespace"
export class TokContext {
constructor(token, isExpr, preserveSpace, override) {
this.token = token
this.isExpr = !!isExpr
this.preserveSpace = !!preserveSpace
this.override = override
}
}
export const types = {
b_stat: new TokContext("{", false),
b_expr: new TokContext("{", true),
b_tmpl: new TokContext("${", true),
p_stat: new TokContext("(", false),
p_expr: new TokContext("(", true),
q_tmpl: new TokContext("`", true, true, p => p.readTmplToken()),
f_expr: new TokContext("function", true)
}
const pp = Parser.prototype
pp.initialContext = function() {
return [types.b_stat]
}
pp.braceIsBlock = function(prevType) {
if (prevType === tt.colon) {
let parent = this.curContext()
if (parent === types.b_stat || parent === types.b_expr)
return !parent.isExpr
}
if (prevType === tt._return)
return lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
if (prevType === tt._else || prevType === tt.semi || prevType === tt.eof || prevType === tt.parenR)
return true
if (prevType == tt.braceL)
return this.curContext() === types.b_stat
return !this.exprAllowed
}
pp.updateContext = function(prevType) {
let update, type = this.type
if (type.keyword && prevType == tt.dot)
this.exprAllowed = false
else if (update = type.updateContext)
update.call(this, prevType)
else
this.exprAllowed = type.beforeExpr
}
// Token-specific context update code
tt.parenR.updateContext = tt.braceR.updateContext = function() {
if (this.context.length == 1) {
this.exprAllowed = true
return
}
let out = this.context.pop()
if (out === types.b_stat && this.curContext() === types.f_expr) {
this.context.pop()
this.exprAllowed = false
} else if (out === types.b_tmpl) {
this.exprAllowed = true
} else {
this.exprAllowed = !out.isExpr
}
}
tt.braceL.updateContext = function(prevType) {
this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr)
this.exprAllowed = true
}
tt.dollarBraceL.updateContext = function() {
this.context.push(types.b_tmpl)
this.exprAllowed = true
}
tt.parenL.updateContext = function(prevType) {
let statementParens = prevType === tt._if || prevType === tt._for || prevType === tt._with || prevType === tt._while
this.context.push(statementParens ? types.p_stat : types.p_expr)
this.exprAllowed = true
}
tt.incDec.updateContext = function() {
// tokExprAllowed stays unchanged
}
tt._function.updateContext = function(prevType) {
if (prevType.beforeExpr && prevType !== tt.semi && prevType !== tt._else &&
!((prevType === tt.colon || prevType === tt.braceL) && this.curContext() === types.b_stat))
this.context.push(types.f_expr)
this.exprAllowed = false
}
tt.backQuote.updateContext = function() {
if (this.curContext() === types.q_tmpl)
this.context.pop()
else
this.context.push(types.q_tmpl)
this.exprAllowed = false
}
node_modules/acorn-dynamic-import/node_modules/acorn/src/tokenize.js deleted 100644 → 0
View file @ e65a993d
import {isIdentifierStart, isIdentifierChar} from "./identifier"
import {types as tt, keywords as keywordTypes} from "./tokentype"
import {Parser} from "./state"
import {SourceLocation} from "./locutil"
import {lineBreak, lineBreakG, isNewLine, nonASCIIwhitespace} from "./whitespace"
// Object type used to represent tokens. Note that normally, tokens
// simply exist as properties on the parser object. This is only
// used for the onToken callback and the external tokenizer.
export class Token {
constructor(p) {
this.type = p.type
this.value = p.value
this.start = p.start
this.end = p.end
if (p.options.locations)
this.loc = new SourceLocation(p, p.startLoc, p.endLoc)
if (p.options.ranges)
this.range = [p.start, p.end]
}
}
// ## Tokenizer
const pp = Parser.prototype
// Are we running under Rhino?
const isRhino = typeof Packages == "object" && Object.prototype.toString.call(Packages) == "[object JavaPackage]"
// Move to the next token
pp.next = function() {
if (this.options.onToken)
this.options.onToken(new Token(this))
this.lastTokEnd = this.end
this.lastTokStart = this.start
this.lastTokEndLoc = this.endLoc
this.lastTokStartLoc = this.startLoc
this.nextToken()
}
pp.getToken = function() {
this.next()
return new Token(this)
}
// If we're in an ES6 environment, make parsers iterable
if (typeof Symbol !== "undefined")
pp[Symbol.iterator] = function () {
let self = this
return {next: function () {
let token = self.getToken()
return {
done: token.type === tt.eof,
value: token
}
}}
}
// Toggle strict mode. Re-reads the next number or string to please
// pedantic tests (`"use strict"; 010;` should fail).
pp.curContext = function() {
return this.context[this.context.length - 1]
}
// Read a single token, updating the parser object's token-related
// properties.
pp.nextToken = function() {
let curContext = this.curContext()
if (!curContext || !curContext.preserveSpace) this.skipSpace()
this.start = this.pos
if (this.options.locations) this.startLoc = this.curPosition()
if (this.pos >= this.input.length) return this.finishToken(tt.eof)
if (curContext.override) return curContext.override(this)
else this.readToken(this.fullCharCodeAtPos())
}
pp.readToken = function(code) {
// Identifier or keyword. '\uXXXX' sequences are allowed in
// identifiers, so '\' also dispatches to that.
if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */)
return this.readWord()
return this.getTokenFromCode(code)
}
pp.fullCharCodeAtPos = function() {
let code = this.input.charCodeAt(this.pos)
if (code <= 0xd7ff || code >= 0xe000) return code
let next = this.input.charCodeAt(this.pos + 1)
return (code << 10) + next - 0x35fdc00
}
pp.skipBlockComment = function() {
let startLoc = this.options.onComment && this.curPosition()
let start = this.pos, end = this.input.indexOf("*/", this.pos += 2)
if (end === -1) this.raise(this.pos - 2, "Unterminated comment")
this.pos = end + 2
if (this.options.locations) {
lineBreakG.lastIndex = start
let match
while ((match = lineBreakG.exec(this.input)) && match.index < this.pos) {
++this.curLine
this.lineStart = match.index + match[0].length
}
}
if (this.options.onComment)
this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos,
startLoc, this.curPosition())
}
pp.skipLineComment = function(startSkip) {
let start = this.pos
let startLoc = this.options.onComment && this.curPosition()
let ch = this.input.charCodeAt(this.pos+=startSkip)
while (this.pos < this.input.length && ch !== 10 && ch !== 13 && ch !== 8232 && ch !== 8233) {
++this.pos
ch = this.input.charCodeAt(this.pos)
}
if (this.options.onComment)
this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos,
startLoc, this.curPosition())
}
// Called at the start of the parse and after every token. Skips
// whitespace and comments, and.
pp.skipSpace = function() {
loop: while (this.pos < this.input.length) {
let ch = this.input.charCodeAt(this.pos)
switch (ch) {
case 32: case 160: // ' '
++this.pos
break
case 13:
if (this.input.charCodeAt(this.pos + 1) === 10) {
++this.pos
}
case 10: case 8232: case 8233:
++this.pos
if (this.options.locations) {
++this.curLine
this.lineStart = this.pos
}
break
case 47: // '/'
switch (this.input.charCodeAt(this.pos + 1)) {
case 42: // '*'
this.skipBlockComment()
break
case 47:
this.skipLineComment(2)
break
default:
break loop
}
break
default:
if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) {
++this.pos
} else {
break loop
}
}
}
}
// Called at the end of every token. Sets `end`, `val`, and
// maintains `context` and `exprAllowed`, and skips the space after
// the token, so that the next one's `start` will point at the
// right position.
pp.finishToken = function(type, val) {
this.end = this.pos
if (this.options.locations) this.endLoc = this.curPosition()
let prevType = this.type
this.type = type
this.value = val
this.updateContext(prevType)
}
// ### Token reading
// This is the function that is called to fetch the next token. It
// is somewhat obscure, because it works in character codes rather
// than characters, and because operator parsing has been inlined
// into it.
//
// All in the name of speed.
//
pp.readToken_dot = function() {
let next = this.input.charCodeAt(this.pos + 1)
if (next >= 48 && next <= 57) return this.readNumber(true)
let next2 = this.input.charCodeAt(this.pos + 2)
if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.'
this.pos += 3
return this.finishToken(tt.ellipsis)
} else {
++this.pos
return this.finishToken(tt.dot)
}
}
pp.readToken_slash = function() { // '/'
let next = this.input.charCodeAt(this.pos + 1)
if (this.exprAllowed) {++this.pos; return this.readRegexp()}
if (next === 61) return this.finishOp(tt.assign, 2)
return this.finishOp(tt.slash, 1)
}
pp.readToken_mult_modulo_exp = function(code) { // '%*'
let next = this.input.charCodeAt(this.pos + 1)
let size = 1
let tokentype = code === 42 ? tt.star : tt.modulo
// exponentiation operator ** and **=
if (this.options.ecmaVersion >= 7 && next === 42) {
++size
tokentype = tt.starstar
next = this.input.charCodeAt(this.pos + 2)
}
if (next === 61) return this.finishOp(tt.assign, size + 1)
return this.finishOp(tokentype, size)
}
pp.readToken_pipe_amp = function(code) { // '|&'
let next = this.input.charCodeAt(this.pos + 1)
if (next === code) return this.finishOp(code === 124 ? tt.logicalOR : tt.logicalAND, 2)
if (next === 61) return this.finishOp(tt.assign, 2)
return this.finishOp(code === 124 ? tt.bitwiseOR : tt.bitwiseAND, 1)
}
pp.readToken_caret = function() { // '^'
let next = this.input.charCodeAt(this.pos + 1)
if (next === 61) return this.finishOp(tt.assign, 2)
return this.finishOp(tt.bitwiseXOR, 1)
}
pp.readToken_plus_min = function(code) { // '+-'
let next = this.input.charCodeAt(this.pos + 1)
if (next === code) {
if (next == 45 && this.input.charCodeAt(this.pos + 2) == 62 &&
lineBreak.test(this.input.slice(this.lastTokEnd, this.pos))) {
// A `-->` line comment
this.skipLineComment(3)
this.skipSpace()
return this.nextToken()
}
return this.finishOp(tt.incDec, 2)
}
if (next === 61) return this.finishOp(tt.assign, 2)
return this.finishOp(tt.plusMin, 1)
}
pp.readToken_lt_gt = function(code) { // '<>'
let next = this.input.charCodeAt(this.pos + 1)
let size = 1
if (next === code) {
size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2
if (this.input.charCodeAt(this.pos + size) === 61) return this.finishOp(tt.assign, size + 1)
return this.finishOp(tt.bitShift, size)
}
if (next == 33 && code == 60 && this.input.charCodeAt(this.pos + 2) == 45 &&
this.input.charCodeAt(this.pos + 3) == 45) {
if (this.inModule) this.unexpected()
// `<!--`, an XML-style comment that should be interpreted as a line comment
this.skipLineComment(4)
this.skipSpace()
return this.nextToken()
}
if (next === 61) size = 2
return this.finishOp(tt.relational, size)
}
pp.readToken_eq_excl = function(code) { // '=!'
let next = this.input.charCodeAt(this.pos + 1)
if (next === 61) return this.finishOp(tt.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2)
if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) { // '=>'
this.pos += 2
return this.finishToken(tt.arrow)
}
return this.finishOp(code === 61 ? tt.eq : tt.prefix, 1)
}
pp.getTokenFromCode = function(code) {
switch (code) {
// The interpretation of a dot depends on whether it is followed
// by a digit or another two dots.
case 46: // '.'
return this.readToken_dot()
// Punctuation tokens.
case 40: ++this.pos; return this.finishToken(tt.parenL)
case 41: ++this.pos; return this.finishToken(tt.parenR)
case 59: ++this.pos; return this.finishToken(tt.semi)
case 44: ++this.pos; return this.finishToken(tt.comma)
case 91: ++this.pos; return this.finishToken(tt.bracketL)
case 93: ++this.pos; return this.finishToken(tt.bracketR)
case 123: ++this.pos; return this.finishToken(tt.braceL)
case 125: ++this.pos; return this.finishToken(tt.braceR)
case 58: ++this.pos; return this.finishToken(tt.colon)
case 63: ++this.pos; return this.finishToken(tt.question)
case 96: // '`'
if (this.options.ecmaVersion < 6) break
++this.pos
return this.finishToken(tt.backQuote)
case 48: // '0'
let next = this.input.charCodeAt(this.pos + 1)
if (next === 120 || next === 88) return this.readRadixNumber(16) // '0x', '0X' - hex number
if (this.options.ecmaVersion >= 6) {
if (next === 111 || next === 79) return this.readRadixNumber(8) // '0o', '0O' - octal number
if (next === 98 || next === 66) return this.readRadixNumber(2) // '0b', '0B' - binary number
}
// Anything else beginning with a digit is an integer, octal
// number, or float.
case 49: case 50: case 51: case 52: case 53: case 54: case 55: case 56: case 57: // 1-9
return this.readNumber(false)
// Quotes produce strings.
case 34: case 39: // '"', "'"
return this.readString(code)
// Operators are parsed inline in tiny state machines. '=' (61) is
// often referred to. `finishOp` simply skips the amount of
// characters it is given as second argument, and returns a token
// of the type given by its first argument.
case 47: // '/'
return this.readToken_slash()
case 37: case 42: // '%*'
return this.readToken_mult_modulo_exp(code)
case 124: case 38: // '|&'
return this.readToken_pipe_amp(code)
case 94: // '^'
return this.readToken_caret()
case 43: case 45: // '+-'
return this.readToken_plus_min(code)
case 60: case 62: // '<>'
return this.readToken_lt_gt(code)
case 61: case 33: // '=!'
return this.readToken_eq_excl(code)
case 126: // '~'
return this.finishOp(tt.prefix, 1)
}
this.raise(this.pos, "Unexpected character '" + codePointToString(code) + "'")
}
pp.finishOp = function(type, size) {
let str = this.input.slice(this.pos, this.pos + size)
this.pos += size
return this.finishToken(type, str)
}
// Parse a regular expression. Some context-awareness is necessary,
// since a '/' inside a '[]' set does not end the expression.
function tryCreateRegexp(src, flags, throwErrorAt, parser) {
try {
return new RegExp(src, flags)
} catch (e) {
if (throwErrorAt !== undefined) {
if (e instanceof SyntaxError) parser.raise(throwErrorAt, "Error parsing regular expression: " + e.message)
throw e
}
}
}
var regexpUnicodeSupport = !!tryCreateRegexp("\uffff", "u")
pp.readRegexp = function() {
let escaped, inClass, start = this.pos
for (;;) {
if (this.pos >= this.input.length) this.raise(start, "Unterminated regular expression")
let ch = this.input.charAt(this.pos)
if (lineBreak.test(ch)) this.raise(start, "Unterminated regular expression")
if (!escaped) {
if (ch === "[") inClass = true
else if (ch === "]" && inClass) inClass = false
else if (ch === "/" && !inClass) break
escaped = ch === "\\"
} else escaped = false
++this.pos
}
let content = this.input.slice(start, this.pos)
++this.pos
// Need to use `readWord1` because '\uXXXX' sequences are allowed
// here (don't ask).
let mods = this.readWord1()
let tmp = content, tmpFlags = ""
if (mods) {
let validFlags = /^[gim]*$/
if (this.options.ecmaVersion >= 6) validFlags = /^[gimuy]*$/
if (!validFlags.test(mods)) this.raise(start, "Invalid regular expression flag")
if (mods.indexOf("u") >= 0) {
if (regexpUnicodeSupport) {
tmpFlags = "u"
} else {
// Replace each astral symbol and every Unicode escape sequence that
// possibly represents an astral symbol or a paired surrogate with a
// single ASCII symbol to avoid throwing on regular expressions that
// are only valid in combination with the `/u` flag.
// Note: replacing with the ASCII symbol `x` might cause false
// negatives in unlikely scenarios. For example, `[\u{61}-b]` is a
// perfectly valid pattern that is equivalent to `[a-b]`, but it would
// be replaced by `[x-b]` which throws an error.
tmp = tmp.replace(/\\u\{([0-9a-fA-F]+)\}/g, (_match, code, offset) => {
code = Number("0x" + code)
if (code > 0x10FFFF) this.raise(start + offset + 3, "Code point out of bounds")
return "x"
})
tmp = tmp.replace(/\\u([a-fA-F0-9]{4})|[\uD800-\uDBFF][\uDC00-\uDFFF]/g, "x")
tmpFlags = tmpFlags.replace("u", "")
}
}
}
// Detect invalid regular expressions.
let value = null
// Rhino's regular expression parser is flaky and throws uncatchable exceptions,
// so don't do detection if we are running under Rhino
if (!isRhino) {
tryCreateRegexp(tmp, tmpFlags, start, this)
// Get a regular expression object for this pattern-flag pair, or `null` in
// case the current environment doesn't support the flags it uses.
value = tryCreateRegexp(content, mods)
}
return this.finishToken(tt.regexp, {pattern: content, flags: mods, value: value})
}
// Read an integer in the given radix. Return null if zero digits
// were read, the integer value otherwise. When `len` is given, this
// will return `null` unless the integer has exactly `len` digits.
pp.readInt = function(radix, len) {
let start = this.pos, total = 0
for (let i = 0, e = len == null ? Infinity : len; i < e; ++i) {
let code = this.input.charCodeAt(this.pos), val
if (code >= 97) val = code - 97 + 10 // a
else if (code >= 65) val = code - 65 + 10 // A
else if (code >= 48 && code <= 57) val = code - 48 // 0-9
else val = Infinity
if (val >= radix) break
++this.pos
total = total * radix + val
}
if (this.pos === start || len != null && this.pos - start !== len) return null
return total
}
pp.readRadixNumber = function(radix) {
this.pos += 2 // 0x
let val = this.readInt(radix)
if (val == null) this.raise(this.start + 2, "Expected number in radix " + radix)
if (isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.pos, "Identifier directly after number")
return this.finishToken(tt.num, val)
}
// Read an integer, octal integer, or floating-point number.
pp.readNumber = function(startsWithDot) {
let start = this.pos, isFloat = false, octal = this.input.charCodeAt(this.pos) === 48
if (!startsWithDot && this.readInt(10) === null) this.raise(start, "Invalid number")
if (octal && this.pos == start + 1) octal = false
let next = this.input.charCodeAt(this.pos)
if (next === 46 && !octal) { // '.'
++this.pos
this.readInt(10)
isFloat = true
next = this.input.charCodeAt(this.pos)
}
if ((next === 69 || next === 101) && !octal) { // 'eE'
next = this.input.charCodeAt(++this.pos)
if (next === 43 || next === 45) ++this.pos // '+-'
if (this.readInt(10) === null) this.raise(start, "Invalid number")
isFloat = true
}
if (isIdentifierStart(this.fullCharCodeAtPos())) this.raise(this.pos, "Identifier directly after number")
let str = this.input.slice(start, this.pos), val
if (isFloat) val = parseFloat(str)
else if (!octal || str.length === 1) val = parseInt(str, 10)
else if (/[89]/.test(str) || this.strict) this.raise(start, "Invalid number")
else val = parseInt(str, 8)
return this.finishToken(tt.num, val)
}
// Read a string value, interpreting backslash-escapes.
pp.readCodePoint = function() {
let ch = this.input.charCodeAt(this.pos), code
if (ch === 123) {
if (this.options.ecmaVersion < 6) this.unexpected()
let codePos = ++this.pos
code = this.readHexChar(this.input.indexOf('}', this.pos) - this.pos)
++this.pos
if (code > 0x10FFFF) this.raise(codePos, "Code point out of bounds")
} else {
code = this.readHexChar(4)
}
return code
}
function codePointToString(code) {
// UTF-16 Decoding
if (code <= 0xFFFF) return String.fromCharCode(code)
code -= 0x10000
return String.fromCharCode((code >> 10) + 0xD800, (code & 1023) + 0xDC00)
}
pp.readString = function(quote) {
let out = "", chunkStart = ++this.pos
for (;;) {
if (this.pos >= this.input.length) this.raise(this.start, "Unterminated string constant")
let ch = this.input.charCodeAt(this.pos)
if (ch === quote) break
if (ch === 92) { // '\'
out += this.input.slice(chunkStart, this.pos)
out += this.readEscapedChar(false)
chunkStart = this.pos
} else {
if (isNewLine(ch)) this.raise(this.start, "Unterminated string constant")
++this.pos
}
}
out += this.input.slice(chunkStart, this.pos++)
return this.finishToken(tt.string, out)
}
// Reads template string tokens.
pp.readTmplToken = function() {
let out = "", chunkStart = this.pos
for (;;) {
if (this.pos >= this.input.length) this.raise(this.start, "Unterminated template")
let ch = this.input.charCodeAt(this.pos)
if (ch === 96 || ch === 36 && this.input.charCodeAt(this.pos + 1) === 123) { // '`', '${'
if (this.pos === this.start && this.type === tt.template) {
if (ch === 36) {
this.pos += 2
return this.finishToken(tt.dollarBraceL)
} else {
++this.pos
return this.finishToken(tt.backQuote)
}
}
out += this.input.slice(chunkStart, this.pos)
return this.finishToken(tt.template, out)
}
if (ch === 92) { // '\'
out += this.input.slice(chunkStart, this.pos)
out += this.readEscapedChar(true)
chunkStart = this.pos
} else if (isNewLine(ch)) {
out += this.input.slice(chunkStart, this.pos)
++this.pos
switch (ch) {
case 13:
if (this.input.charCodeAt(this.pos) === 10) ++this.pos
case 10:
out += "\n"
break
default:
out += String.fromCharCode(ch)
break
}
if (this.options.locations) {
++this.curLine
this.lineStart = this.pos
}
chunkStart = this.pos
} else {
++this.pos
}
}
}
// Used to read escaped characters
pp.readEscapedChar = function(inTemplate) {
let ch = this.input.charCodeAt(++this.pos)
++this.pos
switch (ch) {
case 110: return "\n" // 'n' -> '\n'
case 114: return "\r" // 'r' -> '\r'
case 120: return String.fromCharCode(this.readHexChar(2)) // 'x'
case 117: return codePointToString(this.readCodePoint()) // 'u'
case 116: return "\t" // 't' -> '\t'
case 98: return "\b" // 'b' -> '\b'
case 118: return "\u000b" // 'v' -> '\u000b'
case 102: return "\f" // 'f' -> '\f'
case 13: if (this.input.charCodeAt(this.pos) === 10) ++this.pos // '\r\n'
case 10: // ' \n'
if (this.options.locations) { this.lineStart = this.pos; ++this.curLine }
return ""
default:
if (ch >= 48 && ch <= 55) {
let octalStr = this.input.substr(this.pos - 1, 3).match(/^[0-7]+/)[0]
let octal = parseInt(octalStr, 8)
if (octal > 255) {
octalStr = octalStr.slice(0, -1)
octal = parseInt(octalStr, 8)
}
if (octalStr !== "0" && (this.strict || inTemplate)) {
this.raise(this.pos - 2, "Octal literal in strict mode")
}
this.pos += octalStr.length - 1
return String.fromCharCode(octal)
}
return String.fromCharCode(ch)
}
}
// Used to read character escape sequences ('\x', '\u', '\U').
pp.readHexChar = function(len) {
let codePos = this.pos
let n = this.readInt(16, len)
if (n === null) this.raise(codePos, "Bad character escape sequence")
return n
}
// Read an identifier, and return it as a string. Sets `this.containsEsc`
// to whether the word contained a '\u' escape.
//
// Incrementally adds only escaped chars, adding other chunks as-is
// as a micro-optimization.
pp.readWord1 = function() {
this.containsEsc = false
let word = "", first = true, chunkStart = this.pos
let astral = this.options.ecmaVersion >= 6
while (this.pos < this.input.length) {
let ch = this.fullCharCodeAtPos()
if (isIdentifierChar(ch, astral)) {
this.pos += ch <= 0xffff ? 1 : 2
} else if (ch === 92) { // "\"
this.containsEsc = true
word += this.input.slice(chunkStart, this.pos)
let escStart = this.pos
if (this.input.charCodeAt(++this.pos) != 117) // "u"
this.raise(this.pos, "Expecting Unicode escape sequence \\uXXXX")
++this.pos
let esc = this.readCodePoint()
if (!(first ? isIdentifierStart : isIdentifierChar)(esc, astral))
this.raise(escStart, "Invalid Unicode escape")
word += codePointToString(esc)
chunkStart = this.pos
} else {
break
}
first = false
}
return word + this.input.slice(chunkStart, this.pos)
}
// Read an identifier or keyword token. Will check for reserved
// words when necessary.
pp.readWord = function() {
let word = this.readWord1()
let type = tt.name
if (this.keywords.test(word)) {
if (this.containsEsc) this.raiseRecoverable(this.start, "Escape sequence in keyword " + word)
type = keywordTypes[word]
}
return this.finishToken(type, word)
}
node_modules/acorn-dynamic-import/node_modules/acorn/src/tokentype.js deleted 100644 → 0
View file @ e65a993d
// ## Token types
// The assignment of fine-grained, information-carrying type objects
// allows the tokenizer to store the information it has about a
// token in a way that is very cheap for the parser to look up.
// All token type variables start with an underscore, to make them
// easy to recognize.
// The `beforeExpr` property is used to disambiguate between regular
// expressions and divisions. It is set on all token types that can
// be followed by an expression (thus, a slash after them would be a
// regular expression).
//
// The `startsExpr` property is used to check if the token ends a
// `yield` expression. It is set on all token types that either can
// directly start an expression (like a quotation mark) or can
// continue an expression (like the body of a string).
//
// `isLoop` marks a keyword as starting a loop, which is important
// to know when parsing a label, in order to allow or disallow
// continue jumps to that label.
export class TokenType {
constructor(label, conf = {}) {
this.label = label
this.keyword = conf.keyword
this.beforeExpr = !!conf.beforeExpr
this.startsExpr = !!conf.startsExpr
this.isLoop = !!conf.isLoop
this.isAssign = !!conf.isAssign
this.prefix = !!conf.prefix
this.postfix = !!conf.postfix
this.binop = conf.binop || null
this.updateContext = null
}
}
function binop(name, prec) {
return new TokenType(name, {beforeExpr: true, binop: prec})
}
const beforeExpr = {beforeExpr: true}, startsExpr = {startsExpr: true}
// Map keyword names to token types.
export const keywords = {}
// Succinct definitions of keyword token types
function kw(name, options = {}) {
options.keyword = name
return keywords[name] = new TokenType(name, options)
}
export const types = {
num: new TokenType("num", startsExpr),
regexp: new TokenType("regexp", startsExpr),
string: new TokenType("string", startsExpr),
name: new TokenType("name", startsExpr),
eof: new TokenType("eof"),
// Punctuation token types.
bracketL: new TokenType("[", {beforeExpr: true, startsExpr: true}),
bracketR: new TokenType("]"),
braceL: new TokenType("{", {beforeExpr: true, startsExpr: true}),
braceR: new TokenType("}"),
parenL: new TokenType("(", {beforeExpr: true, startsExpr: true}),
parenR: new TokenType(")"),
comma: new TokenType(",", beforeExpr),
semi: new TokenType(";", beforeExpr),
colon: new TokenType(":", beforeExpr),
dot: new TokenType("."),
question: new TokenType("?", beforeExpr),
arrow: new TokenType("=>", beforeExpr),
template: new TokenType("template"),
ellipsis: new TokenType("...", beforeExpr),
backQuote: new TokenType("`", startsExpr),
dollarBraceL: new TokenType("${", {beforeExpr: true, startsExpr: true}),
// Operators. These carry several kinds of properties to help the
// parser use them properly (the presence of these properties is
// what categorizes them as operators).
//
// `binop`, when present, specifies that this operator is a binary
// operator, and will refer to its precedence.
//
// `prefix` and `postfix` mark the operator as a prefix or postfix
// unary operator.
//
// `isAssign` marks all of `=`, `+=`, `-=` etcetera, which act as
// binary operators with a very low precedence, that should result
// in AssignmentExpression nodes.
eq: new TokenType("=", {beforeExpr: true, isAssign: true}),
assign: new TokenType("_=", {beforeExpr: true, isAssign: true}),
incDec: new TokenType("++/--", {prefix: true, postfix: true, startsExpr: true}),
prefix: new TokenType("prefix", {beforeExpr: true, prefix: true, startsExpr: true}),
logicalOR: binop("||", 1),
logicalAND: binop("&&", 2),
bitwiseOR: binop("|", 3),
bitwiseXOR: binop("^", 4),
bitwiseAND: binop("&", 5),
equality: binop("==/!=", 6),
relational: binop("</>", 7),
bitShift: binop("<</>>", 8),
plusMin: new TokenType("+/-", {beforeExpr: true, binop: 9, prefix: true, startsExpr: true}),
modulo: binop("%", 10),
star: binop("*", 10),
slash: binop("/", 10),
starstar: new TokenType("**", {beforeExpr: true}),
// Keyword token types.
_break: kw("break"),
_case: kw("case", beforeExpr),
_catch: kw("catch"),
_continue: kw("continue"),
_debugger: kw("debugger"),
_default: kw("default", beforeExpr),
_do: kw("do", {isLoop: true, beforeExpr: true}),
_else: kw("else", beforeExpr),
_finally: kw("finally"),
_for: kw("for", {isLoop: true}),
_function: kw("function", startsExpr),
_if: kw("if"),
_return: kw("return", beforeExpr),
_switch: kw("switch"),
_throw: kw("throw", beforeExpr),
_try: kw("try"),
_var: kw("var"),
_const: kw("const"),
_while: kw("while", {isLoop: true}),
_with: kw("with"),
_new: kw("new", {beforeExpr: true, startsExpr: true}),
_this: kw("this", startsExpr),
_super: kw("super", startsExpr),
_class: kw("class"),
_extends: kw("extends", beforeExpr),
_export: kw("export"),
_import: kw("import"),
_null: kw("null", startsExpr),
_true: kw("true", startsExpr),
_false: kw("false", startsExpr),
_in: kw("in", {beforeExpr: true, binop: 7}),
_instanceof: kw("instanceof", {beforeExpr: true, binop: 7}),
_typeof: kw("typeof", {beforeExpr: true, prefix: true, startsExpr: true}),
_void: kw("void", {beforeExpr: true, prefix: true, startsExpr: true}),
_delete: kw("delete", {beforeExpr: true, prefix: true, startsExpr: true})
}
node_modules/acorn-dynamic-import/node_modules/acorn/src/util.js deleted 100644 → 0
View file @ e65a993d
export function isArray(obj) {
return Object.prototype.toString.call(obj) === "[object Array]"
}
// Checks if an object has a property.
export function has(obj, propName) {
return Object.prototype.hasOwnProperty.call(obj, propName)
}
node_modules/acorn-dynamic-import/node_modules/acorn/src/walk/index.js deleted 100644 → 0
View file @ e65a993d
// AST walker module for Mozilla Parser API compatible trees
// A simple walk is one where you simply specify callbacks to be
// called on specific nodes. The last two arguments are optional. A
// simple use would be
//
// walk.simple(myTree, {
// Expression: function(node) { ... }
// });
//
// to do something with all expressions. All Parser API node types
// can be used to identify node types, as well as Expression,
// Statement, and ScopeBody, which denote categories of nodes.
//
// The base argument can be used to pass a custom (recursive)
// walker, and state can be used to give this walked an initial
// state.
export function simple(node, visitors, base, state, override) {
if (!base) base = exports.base
;(function c(node, st, override) {
let type = override || node.type, found = visitors[type]
base[type](node, st, c)
if (found) found(node, st)
})(node, state, override)
}
// An ancestor walk keeps an array of ancestor nodes (including the
// current node) and passes them to the callback as third parameter
// (and also as state parameter when no other state is present).
export function ancestor(node, visitors, base, state) {
if (!base) base = exports.base
let ancestors = []
;(function c(node, st, override) {
let type = override || node.type, found = visitors[type]
let isNew = node != ancestors[ancestors.length - 1]
if (isNew) ancestors.push(node)
base[type](node, st, c)
if (found) found(node, st || ancestors, ancestors)
if (isNew) ancestors.pop()
})(node, state)
}
// A recursive walk is one where your functions override the default
// walkers. They can modify and replace the state parameter that's
// threaded through the walk, and can opt how and whether to walk
// their child nodes (by calling their third argument on these
// nodes).
export function recursive(node, state, funcs, base, override) {
let visitor = funcs ? exports.make(funcs, base) : base
;(function c(node, st, override) {
visitor[override || node.type](node, st, c)
})(node, state, override)
}
function makeTest(test) {
if (typeof test == "string")
return type => type == test
else if (!test)
return () => true
else
return test
}
class Found {
constructor(node, state) { this.node = node; this.state = state }
}
// Find a node with a given start, end, and type (all are optional,
// null can be used as wildcard). Returns a {node, state} object, or
// undefined when it doesn't find a matching node.
export function findNodeAt(node, start, end, test, base, state) {
test = makeTest(test)
if (!base) base = exports.base
try {
;(function c(node, st, override) {
let type = override || node.type
if ((start == null || node.start <= start) &&
(end == null || node.end >= end))
base[type](node, st, c)
if ((start == null || node.start == start) &&
(end == null || node.end == end) &&
test(type, node))
throw new Found(node, st)
})(node, state)
} catch (e) {
if (e instanceof Found) return e
throw e
}
}
// Find the innermost node of a given type that contains the given
// position. Interface similar to findNodeAt.
export function findNodeAround(node, pos, test, base, state) {
test = makeTest(test)
if (!base) base = exports.base
try {
;(function c(node, st, override) {
let type = override || node.type
if (node.start > pos || node.end < pos) return
base[type](node, st, c)
if (test(type, node)) throw new Found(node, st)
})(node, state)
} catch (e) {
if (e instanceof Found) return e
throw e
}
}
// Find the outermost matching node after a given position.
export function findNodeAfter(node, pos, test, base, state) {
test = makeTest(test)
if (!base) base = exports.base
try {
;(function c(node, st, override) {
if (node.end < pos) return
let type = override || node.type
if (node.start >= pos && test(type, node)) throw new Found(node, st)
base[type](node, st, c)
})(node, state)
} catch (e) {
if (e instanceof Found) return e
throw e
}
}
// Find the outermost matching node before a given position.
export function findNodeBefore(node, pos, test, base, state) {
test = makeTest(test)
if (!base) base = exports.base
let max
;(function c(node, st, override) {
if (node.start > pos) return
let type = override || node.type
if (node.end <= pos && (!max || max.node.end < node.end) && test(type, node))
max = new Found(node, st)
base[type](node, st, c)
})(node, state)
return max
}
// Fallback to an Object.create polyfill for older environments.
const create = Object.create || function(proto) {
function Ctor() {}
Ctor.prototype = proto
return new Ctor
}
// Used to create a custom walker. Will fill in all missing node
// type properties with the defaults.
export function make(funcs, base) {
if (!base) base = exports.base
let visitor = create(base)
for (var type in funcs) visitor[type] = funcs[type]
return visitor
}
function skipThrough(node, st, c) { c(node, st) }
function ignore(_node, _st, _c) {}
// Node walkers.
export const base = {}
base.Program = base.BlockStatement = (node, st, c) => {
for (let i = 0; i < node.body.length; ++i)
c(node.body[i], st, "Statement")
}
base.Statement = skipThrough
base.EmptyStatement = ignore
base.ExpressionStatement = base.ParenthesizedExpression =
(node, st, c) => c(node.expression, st, "Expression")
base.IfStatement = (node, st, c) => {
c(node.test, st, "Expression")
c(node.consequent, st, "Statement")
if (node.alternate) c(node.alternate, st, "Statement")
}
base.LabeledStatement = (node, st, c) => c(node.body, st, "Statement")
base.BreakStatement = base.ContinueStatement = ignore
base.WithStatement = (node, st, c) => {
c(node.object, st, "Expression")
c(node.body, st, "Statement")
}
base.SwitchStatement = (node, st, c) => {
c(node.discriminant, st, "Expression")
for (let i = 0; i < node.cases.length; ++i) {
let cs = node.cases[i]
if (cs.test) c(cs.test, st, "Expression")
for (let j = 0; j < cs.consequent.length; ++j)
c(cs.consequent[j], st, "Statement")
}
}
base.ReturnStatement = base.YieldExpression = base.AwaitExpression = (node, st, c) => {
if (node.argument) c(node.argument, st, "Expression")
}
base.ThrowStatement = base.SpreadElement =
(node, st, c) => c(node.argument, st, "Expression")
base.TryStatement = (node, st, c) => {
c(node.block, st, "Statement")
if (node.handler) c(node.handler, st)
if (node.finalizer) c(node.finalizer, st, "Statement")
}
base.CatchClause = (node, st, c) => {
c(node.param, st, "Pattern")
c(node.body, st, "ScopeBody")
}
base.WhileStatement = base.DoWhileStatement = (node, st, c) => {
c(node.test, st, "Expression")
c(node.body, st, "Statement")
}
base.ForStatement = (node, st, c) => {
if (node.init) c(node.init, st, "ForInit")
if (node.test) c(node.test, st, "Expression")
if (node.update) c(node.update, st, "Expression")
c(node.body, st, "Statement")
}
base.ForInStatement = base.ForOfStatement = (node, st, c) => {
c(node.left, st, "ForInit")
c(node.right, st, "Expression")
c(node.body, st, "Statement")
}
base.ForInit = (node, st, c) => {
if (node.type == "VariableDeclaration") c(node, st)
else c(node, st, "Expression")
}
base.DebuggerStatement = ignore
base.FunctionDeclaration = (node, st, c) => c(node, st, "Function")
base.VariableDeclaration = (node, st, c) => {
for (let i = 0; i < node.declarations.length; ++i)
c(node.declarations[i], st)
}
base.VariableDeclarator = (node, st, c) => {
c(node.id, st, "Pattern")
if (node.init) c(node.init, st, "Expression")
}
base.Function = (node, st, c) => {
if (node.id) c(node.id, st, "Pattern")
for (let i = 0; i < node.params.length; i++)
c(node.params[i], st, "Pattern")
c(node.body, st, node.expression ? "ScopeExpression" : "ScopeBody")
}
// FIXME drop these node types in next major version
// (They are awkward, and in ES6 every block can be a scope.)
base.ScopeBody = (node, st, c) => c(node, st, "Statement")
base.ScopeExpression = (node, st, c) => c(node, st, "Expression")
base.Pattern = (node, st, c) => {
if (node.type == "Identifier")
c(node, st, "VariablePattern")
else if (node.type == "MemberExpression")
c(node, st, "MemberPattern")
else
c(node, st)
}
base.VariablePattern = ignore
base.MemberPattern = skipThrough
base.RestElement = (node, st, c) => c(node.argument, st, "Pattern")
base.ArrayPattern = (node, st, c) => {
for (let i = 0; i < node.elements.length; ++i) {
let elt = node.elements[i]
if (elt) c(elt, st, "Pattern")
}
}
base.ObjectPattern = (node, st, c) => {
for (let i = 0; i < node.properties.length; ++i)
c(node.properties[i].value, st, "Pattern")
}
base.Expression = skipThrough
base.ThisExpression = base.Super = base.MetaProperty = ignore
base.ArrayExpression = (node, st, c) => {
for (let i = 0; i < node.elements.length; ++i) {
let elt = node.elements[i]
if (elt) c(elt, st, "Expression")
}
}
base.ObjectExpression = (node, st, c) => {
for (let i = 0; i < node.properties.length; ++i)
c(node.properties[i], st)
}
base.FunctionExpression = base.ArrowFunctionExpression = base.FunctionDeclaration
base.SequenceExpression = base.TemplateLiteral = (node, st, c) => {
for (let i = 0; i < node.expressions.length; ++i)
c(node.expressions[i], st, "Expression")
}
base.UnaryExpression = base.UpdateExpression = (node, st, c) => {
c(node.argument, st, "Expression")
}
base.BinaryExpression = base.LogicalExpression = (node, st, c) => {
c(node.left, st, "Expression")
c(node.right, st, "Expression")
}
base.AssignmentExpression = base.AssignmentPattern = (node, st, c) => {
c(node.left, st, "Pattern")
c(node.right, st, "Expression")
}
base.ConditionalExpression = (node, st, c) => {
c(node.test, st, "Expression")
c(node.consequent, st, "Expression")
c(node.alternate, st, "Expression")
}
base.NewExpression = base.CallExpression = (node, st, c) => {
c(node.callee, st, "Expression")
if (node.arguments) for (let i = 0; i < node.arguments.length; ++i)
c(node.arguments[i], st, "Expression")
}
base.MemberExpression = (node, st, c) => {
c(node.object, st, "Expression")
if (node.computed) c(node.property, st, "Expression")
}
base.ExportNamedDeclaration = base.ExportDefaultDeclaration = (node, st, c) => {
if (node.declaration)
c(node.declaration, st, node.type == "ExportNamedDeclaration" || node.declaration.id ? "Statement" : "Expression")
if (node.source) c(node.source, st, "Expression")
}
base.ExportAllDeclaration = (node, st, c) => {
c(node.source, st, "Expression")
}
base.ImportDeclaration = (node, st, c) => {
for (let i = 0; i < node.specifiers.length; i++)
c(node.specifiers[i], st)
c(node.source, st, "Expression")
}
base.ImportSpecifier = base.ImportDefaultSpecifier = base.ImportNamespaceSpecifier = base.Identifier = base.Literal = ignore
base.TaggedTemplateExpression = (node, st, c) => {
c(node.tag, st, "Expression")
c(node.quasi, st)
}
base.ClassDeclaration = base.ClassExpression = (node, st, c) => c(node, st, "Class")
base.Class = (node, st, c) => {
if (node.id) c(node.id, st, "Pattern")
if (node.superClass) c(node.superClass, st, "Expression")
for (let i = 0; i < node.body.body.length; i++)
c(node.body.body[i], st)
}
base.MethodDefinition = base.Property = (node, st, c) => {
if (node.computed) c(node.key, st, "Expression")
c(node.value, st, "Expression")
}
node_modules/acorn-dynamic-import/node_modules/acorn/src/whitespace.js deleted 100644 → 0
View file @ e65a993d
// Matches a whole line break (where CRLF is considered a single
// line break). Used to count lines.
export const lineBreak = /\r\n?|\n|\u2028|\u2029/
export const lineBreakG = new RegExp(lineBreak.source, "g")
export function isNewLine(code) {
return code === 10 || code === 13 || code === 0x2028 || code === 0x2029
}
export const nonASCIIwhitespace = /[\u1680\u180e\u2000-\u200a\u202f\u205f\u3000\ufeff]/
export const skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g
node_modules/acorn-dynamic-import/package.json deleted 100644 → 0
View file @ e65a993d
{
"_from": "acorn-dynamic-import@^2.0.0",
"_id": "acorn-dynamic-import@2.0.2",
"_inBundle": false,
"_integrity": "sha1-x1K9IQvvZ5UBtsbLf8hPj0cVjMQ=",
"_location": "/acorn-dynamic-import",
"_phantomChildren": {},
"_requested": {
"type": "range",
"registry": true,
"raw": "acorn-dynamic-import@^2.0.0",
"name": "acorn-dynamic-import",
"escapedName": "acorn-dynamic-import",
"rawSpec": "^2.0.0",
"saveSpec": null,
"fetchSpec": "^2.0.0"
},
"_requiredBy": [
"/webpack"
],
"_resolved": "https://registry.npmjs.org/acorn-dynamic-import/-/acorn-dynamic-import-2.0.2.tgz",
"_shasum": "c752bd210bef679501b6c6cb7fc84f8f47158cc4",
"_spec": "acorn-dynamic-import@^2.0.0",
"_where": "C:\\Work\\OneDrive - bwstaff\\M4_Lab\\TV3\\NewVersion01\\LAFJLBmf939XYm5gj\\dev\\node_modules\\webpack",
"author": {
"name": "Jordan Gensler",
"email": "jordangens@gmail.com"
},
"bugs": {
"url": "https://github.com/kesne/acorn-dynamic-import/issues"
},
"bundleDependencies": false,
"dependencies": {
"acorn": "^4.0.3"
},
"deprecated": false,
"description": "Support dynamic imports in acorn",
"devDependencies": {
"babel-cli": "^6.18.0",
"babel-eslint": "^7.1.1",
"babel-preset-airbnb": "^2.1.1",
"babel-register": "^6.18.0",
"chai": "^3.0.0",
"eslint": "^3.10.2",
"eslint-config-airbnb-base": "^10.0.1",
"eslint-plugin-import": "^2.2.0",
"in-publish": "^2.0.0",
"mocha": "^2.2.5",
"rimraf": "^2.5.4",
"safe-publish-latest": "^1.1.1"
},
"homepage": "https://github.com/kesne/acorn-dynamic-import",
"license": "MIT",
"main": "lib/index.js",
"name": "acorn-dynamic-import",
"repository": {
"type": "git",
"url": "git+https://github.com/kesne/acorn-dynamic-import.git"
},
"scripts": {
"build": "babel src --out-dir lib",
"check-changelog": "expr $(git status --porcelain 2>/dev/null| grep \"^\\s*M.*CHANGELOG.md\" | wc -l) >/dev/null || (echo 'Please edit CHANGELOG.md' && exit 1)",
"check-only-changelog-changed": "(expr $(git status --porcelain 2>/dev/null| grep -v \"CHANGELOG.md\" | wc -l) >/dev/null && echo 'Only CHANGELOG.md may have uncommitted changes' && exit 1) || exit 0",
"lint": "eslint .",
"postversion": "git commit package.json CHANGELOG.md -m \"v$npm_package_version\" && npm run tag && git push && git push --tags",
"prepublish": "in-publish && safe-publish-latest && npm run build || not-in-publish",
"preversion": "npm run test && npm run check-changelog && npm run check-only-changelog-changed",
"tag": "git tag v$npm_package_version",
"test": "npm run lint && npm run tests-only",
"tests-only": "mocha",
"version:major": "npm --no-git-tag-version version major",
"version:minor": "npm --no-git-tag-version version minor",
"version:patch": "npm --no-git-tag-version version patch"
},
"version": "2.0.2"
}
node_modules/acorn-dynamic-import/src/index.js deleted 100644 → 0
View file @ e65a993d
import * as acorn from 'acorn';
import inject from './inject';
export default inject(acorn);
node_modules/acorn-dynamic-import/src/inject.js deleted 100644 → 0
View file @ e65a993d
/* eslint-disable no-underscore-dangle */
export default function injectDynamicImport(acorn) {
const tt = acorn.tokTypes;
// NOTE: This allows `yield import()` to parse correctly.
tt._import.startsExpr = true;
function parseDynamicImport() {
const node = this.startNode();
this.next();
if (this.type !== tt.parenL) {
this.unexpected();
}
return this.finishNode(node, 'Import');
}
function peekNext() {
return this.input[this.pos];
}
// eslint-disable-next-line no-param-reassign
acorn.plugins.dynamicImport = function dynamicImportPlugin(instance) {
instance.extend('parseStatement', nextMethod => (
function parseStatement(...args) {
const node = this.startNode();
if (this.type === tt._import) {
const nextToken = peekNext.call(this);
if (nextToken === tt.parenL.label) {
const expr = this.parseExpression();
return this.parseExpressionStatement(node, expr);
}
}
return nextMethod.apply(this, args);
}
));
instance.extend('parseExprAtom', nextMethod => (
function parseExprAtom(refDestructuringErrors) {
if (this.type === tt._import) {
return parseDynamicImport.call(this);
}
return nextMethod.call(this, refDestructuringErrors);
}
));
};
return acorn;
}
node_modules/acorn/AUTHORS deleted 100644 → 0
View file @ e65a993d
List of Acorn contributors. Updated before every release.
Adrian Heine
Adrian Rakovsky
Alistair Braidwood
Amila Welihinda
Andres Suarez
Angelo
Aparajita Fishman
Arian Stolwijk
Artem Govorov
Boopesh Mahendran
Bradley Heinz
Brandon Mills
Charles Hughes
Charmander
Chris McKnight
Conrad Irwin
Daniel Tschinder
David Bonnet
Domenico Matteo
ehmicky
Eugene Obrezkov
Felix Maier
Forbes Lindesay
Gilad Peleg
impinball
Ingvar Stepanyan
Jackson Ray Hamilton
Jesse McCarthy
Jiaxing Wang
Joel Kemp
Johannes Herr
John-David Dalton
Jordan Klassen
Jürg Lehni
Kai Cataldo
keeyipchan
Keheliya Gallaba
Kevin Irish
Kevin Kwok
krator
laosb
luckyzeng
Marek
Marijn Haverbeke
Martin Carlberg
Mat Garcia
Mathias Bynens
Mathieu 'p01' Henri
Matthew Bastien
Max Schaefer
Max Zerzouri
Mihai Bazon
Mike Rennie
naoh
Nicholas C. Zakas
Nick Fitzgerald
Olivier Thomann
Oskar Schöldström
Paul Harper
Peter Rust
PlNG
Prayag Verma
ReadmeCritic
r-e-d
Renée Kooi
Richard Gibson
Rich Harris
Sebastian McKenzie
Shahar Soel
Sheel Bedi
Simen Bekkhus
Teddy Katz
Timothy Gu
Toru Nagashima
Victor Homyakov
Wexpo Lyu
zsjforcn
node_modules/acorn/CHANGELOG.md
View file @ a2e8cafb
## 5.7.3 (2018-09-10)
## 8.4.0 (2021-06-11)
### New features
A new option, `allowSuperOutsideMethod`, can be used to suppress the error when `super` is used in the wrong context.
## 8.3.0 (2021-05-31)
### New features
Default `allowAwaitOutsideFunction` to true for ECMAScript 2022 an higher.
Add support for the `p` ([indices](https://github.com/tc39/proposal-regexp-match-indices)) regexp flag.
## 8.2.4 (2021-05-04)
### Bug fixes
Fix failure to tokenize regexps after expressions like `x.of`.
Fix spec conformity in corner case 'for await (async of ...)'.
Better error message for unterminated template literals.
## 5.7.2 (2018-08-24)
## 8.2.3 (2021-05-04)
### Bug fixes
Properly handle `allowAwaitOutsideFunction` in for statements.
Fix an issue where the library couldn't parse 'for (async of ...)'.
Treat function declarations at the top level of modules like let bindings.
Fix a bug in UTF-16 decoding that would read characters incorrectly in some circumstances.
Don't allow async function declarations as the only statement under a label.
## 8.2.2 (2021-04-29)
## 5.7.1 (2018-06-15)
### Bug fixes
Fix a bug where a class field initialized to an async arrow function wouldn't allow await inside it. Same issue existed for generator arrow functions with yield.
## 8.2.1 (2021-04-24)
### Bug fixes
Make sure the walker and bin files are rebuilt on release (the previous release didn't get the up-to-date versions).
Fix a regression introduced in 8.2.0 where static or async class methods with keyword names fail to parse.
## 5.7.0 (2018-06-15)
## 8.2.0 (2021-04-24)
### New features
Add support for ES2022 class fields and private methods.
## 8.1.1 (2021-04-12)
### Various
Stop shipping source maps in the NPM package.
## 8.1.0 (2021-03-09)
### Bug fixes
Fix crash in walker when walking a binding-less catch node.
Fix a spurious error in nested destructuring arrays.
### New features
Upgraded to Unicode 11.
Expose `allowAwaitOutsideFunction` in CLI interface.
## 5.6.2 (2018-06-05)
Make `allowImportExportAnywhere` also apply to `import.meta`.
## 8.0.5 (2021-01-25)
### Bug fixes
In the walker, go back to allowing the `baseVisitor` argument to be null to default to the default base everywhere.
Adjust package.json to work with Node 12.16.0 and 13.0-13.6.
## 5.6.1 (2018-06-01)
## 8.0.4 (2020-10-05)
### Bug fixes
Fix regression when passing `null` as fourth argument to `walk.recursive`.
Make `await x ** y` an error, following the spec.
## 5.6.0 (2018-05-31)
Fix potentially exponential regular expression.
## 8.0.3 (2020-10-02)
### Bug fixes
Fix a wasteful loop during `Parser` creation when setting `ecmaVersion` to `"latest"`.
## 8.0.2 (2020-09-30)
### Bug fixes
Make the TypeScript types reflect the current allowed values for `ecmaVersion`.
Fix another regexp/division tokenizer issue.
## 8.0.1 (2020-08-12)
### Bug fixes
Provide the correct value in the `version` export.
## 8.0.0 (2020-08-12)
### Bug fixes
Disallow expressions like `(a = b) = c`.
Make non-octal escape sequences a syntax error in strict mode.
### New features
The package can now be loaded directly as an ECMAScript module in node 13+.
Update to the set of Unicode properties from ES2021.
### Breaking changes
The `ecmaVersion` option is now required. For the moment, omitting it will still work with a warning, but that will change in a future release.
Some changes to method signatures that may be used by plugins.
## 7.4.0 (2020-08-03)
### New features
Add support for logical assignment operators.
Add support for numeric separators.
## 7.3.1 (2020-06-11)
### Bug fixes
Make the string in the `version` export match the actual library version.
## 7.3.0 (2020-06-11)
### Bug fixes
Fix a bug that caused parsing of object patterns with a property named `set` that had a default value to fail.
### New features
Add support for optional chaining (`?.`).
## 7.2.0 (2020-05-09)
### Bug fixes
Fix precedence issue in parsing of async arrow functions.
### New features
Add support for nullish coalescing.
Add support for `import.meta`.
Support `export * as ...` syntax.
Upgrade to Unicode 13.
## 6.4.1 (2020-03-09)
### Bug fixes
More carefully check for valid UTF16 surrogate pairs in regexp validator.
## 7.1.1 (2020-03-01)
### Bug fixes
Treat `\8` and `\9` as invalid escapes in template strings.
Allow unicode escapes in property names that are keywords.
Don't error on an exponential operator expression as argument to `await`.
More carefully check for valid UTF16 surrogate pairs in regexp validator.
## 7.1.0 (2019-09-24)
### Bug fixes
Disallow trailing object literal commas when ecmaVersion is less than 5.
### New features
Add a static `acorn` property to the `Parser` class that contains the entire module interface, to allow plugins to access the instance of the library that they are acting on.
## 7.0.0 (2019-08-13)
### Breaking changes
Changes the node format for dynamic imports to use the `ImportExpression` node type, as defined in [ESTree](https://github.com/estree/estree/blob/master/es2020.md#importexpression).
Makes 10 (ES2019) the default value for the `ecmaVersion` option.
## 6.3.0 (2019-08-12)
### New features
`sourceType: "module"` can now be used even when `ecmaVersion` is less than 6, to parse module-style code that otherwise conforms to an older standard.
## 6.2.1 (2019-07-21)
### Bug fixes
Fix bug causing Acorn to treat some characters as identifier characters that shouldn't be treated as such.
Fix issue where setting the `allowReserved` option to `"never"` allowed reserved words in some circumstances.
## 6.2.0 (2019-07-04)
### Bug fixes
Improve valid assignment checking in `for`/`in` and `for`/`of` loops.
Disallow binding `let` in patterns.
### New features
Support bigint syntax with `ecmaVersion` >= 11.
Support dynamic `import` syntax with `ecmaVersion` >= 11.
Upgrade to Unicode version 12.
## 6.1.1 (2019-02-27)
### Bug fixes
Fix bug that caused parsing default exports of with names to fail.
## 6.1.0 (2019-02-08)
### Bug fixes
Fix scope checking when redefining a `var` as a lexical binding.
### New features
Split up `parseSubscripts` to use an internal `parseSubscript` method to make it easier to extend with plugins.
## 6.0.7 (2019-02-04)
### Bug fixes
Check that exported bindings are defined.
Don't treat `\u180e` as a whitespace character.
Check for duplicate parameter names in methods.
Don't allow shorthand properties when they are generators or async methods.
Forbid binding `await` in async arrow function's parameter list.
## 6.0.6 (2019-01-30)
### Bug fixes
The content of class declarations and expressions is now always parsed in strict mode.
Don't allow `let` or `const` to bind the variable name `let`.
Treat class declarations as lexical.
Don't allow a generator function declaration as the sole body of an `if` or `else`.
Ignore `"use strict"` when after an empty statement.
Allow string line continuations with special line terminator characters.
Treat `for` bodies as part of the `for` scope when checking for conflicting bindings.
Fix bug with parsing `yield` in a `for` loop initializer.
Implement special cases around scope checking for functions.
## 6.0.5 (2019-01-02)
### Bug fixes
Fix TypeScript type for `Parser.extend` and add `allowAwaitOutsideFunction` to options type.
Don't treat `let` as a keyword when the next token is `{` on the next line.
Fix bug that broke checking for parentheses around an object pattern in a destructuring assignment when `preserveParens` was on.
## 6.0.4 (2018-11-05)
### Bug fixes
Fix a bug in the walker that caused a crash when walking an object pattern spread.
Further improvements to tokenizing regular expressions in corner cases.
## 6.0.3 (2018-11-04)
### Bug fixes
Fix bug in tokenizing an expression-less return followed by a function followed by a regular expression.
Remove stray symlink in the package tarball.
## 6.0.2 (2018-09-26)
### Bug fixes
Fix bug where default expressions could fail to parse inside an object destructuring assignment expression.
## 6.0.1 (2018-09-14)
### Bug fixes
Fix wrong value in `version` export.
## 6.0.0 (2018-09-14)
### Bug fixes
Better handle variable-redefinition checks for catch bindings and functions directly under if statements.
Forbid `new.target` in top-level arrow functions.
Fix issue with parsing a regexp after `yield` in some contexts.
### New features
The package now comes with TypeScript definitions.
### Breaking changes
The default value of the `ecmaVersion` option is now 9 (2018).
Plugins work differently, and will have to be rewritten to work with this version.
The loose parser and walker have been moved into separate packages (`acorn-loose` and `acorn-walk`).
## 5.7.3 (2018-09-10)
### Bug fixes
Fix failure to tokenize regexps after expressions like `x.of`.
Better error message for unterminated template literals.
## 5.7.2 (2018-08-24)
### Bug fixes
Properly handle `allowAwaitOutsideFunction` in for statements.
Treat function declarations at the top level of modules like let bindings.
Don't allow async function declarations as the only statement under a label.
## 5.7.0 (2018-06-15)
### New features
Upgraded to Unicode 11.
## 5.6.0 (2018-05-31)
### New features
......@@ -74,28 +382,16 @@ A republish of the code in 5.5.1 in an attempt to solve an issue with the file t
### Bug fixes
Fix regression in walker causing property values in object patterns to be walked as expressions.
Fix misleading error message for octal escapes in template strings.
## 5.5.0 (2018-02-27)
### Bug fixes
Support object spread in the AST walker.
### New features
The identifier character categorization is now based on Unicode version 10.
Acorn will now validate the content of regular expressions, including new ES9 features.
## 5.4.1 (2018-02-02)
### Bug fixes
5.4.0 somehow accidentally included an old version of walk.js.
## 5.4.0 (2018-02-01)
### Bug fixes
......@@ -146,8 +442,6 @@ Fix token context tracking for `class` and `function` in property-name position.
Make sure `%*` isn't parsed as a valid operator.
The `full` and `fullAncestor` walkers no longer visit nodes multiple times.
Allow shorthand properties `get` and `set` to be followed by default values.
Disallow `super` when not in callee or object position.
......@@ -184,14 +478,10 @@ Don't error when `yield` is used as a property name.
Allow `async` as a shorthand object property.
Make the ES module version of the loose parser actually work.
### New features
Implement the [template literal revision proposal](https://github.com/tc39/proposal-template-literal-revision) for ES9.
New walker functions `full` and `fullAncestor`.
## 5.0.3 (2017-04-01)
### Bug fixes
......@@ -230,26 +520,21 @@ Allow all forms of member expressions to be parenthesized as lvalue.
### Bug fixes
Don't expect semicolons after default-exported functions or classes,
even when they are expressions.
Don't expect semicolons after default-exported functions or classes, even when they are expressions.
Check for use of `'use strict'` directives in non-simple parameter
functions, even when already in strict mode.
Check for use of `'use strict'` directives in non-simple parameter functions, even when already in strict mode.
## 4.0.9 (2017-02-06)
### Bug fixes
Fix incorrect error raised for parenthesized simple assignment
targets, so that `(x) = 1` parses again.
Fix incorrect error raised for parenthesized simple assignment targets, so that `(x) = 1` parses again.
## 4.0.8 (2017-02-03)
### Bug fixes
Solve spurious parenthesized pattern errors by temporarily erring on
the side of accepting programs that our delayed errors don't handle
correctly yet.
Solve spurious parenthesized pattern errors by temporarily erring on the side of accepting programs that our delayed errors don't handle correctly yet.
## 4.0.7 (2017-02-02)
......@@ -257,16 +542,13 @@ correctly yet.
Accept invalidly rejected code like `(x).y = 2` again.
Don't raise an error when a function _inside_ strict code has a
non-simple parameter list.
Don't raise an error when a function _inside_ strict code has a non-simple parameter list.
## 4.0.6 (2017-02-02)
### Bug fixes
Fix exponential behavior (manifesting itself as a complete hang for
even relatively small source files) introduced by the new 'use strict'
check.
Fix exponential behavior (manifesting itself as a complete hang for even relatively small source files) introduced by the new 'use strict' check.
## 4.0.5 (2017-02-02)
......@@ -288,8 +570,6 @@ Disallow labeled declarations.
### Bug fixes
Fix issue with loading acorn_loose.js with an AMD loader.
Fix crash when `export` was followed by a keyword that can't be
exported.
......@@ -297,8 +577,7 @@ exported.
### Bug fixes
Allow regular function declarations inside single-statement `if`
branches in loose mode. Forbid them entirely in strict mode.
Allow regular function declarations inside single-statement `if` branches in loose mode. Forbid them entirely in strict mode.
Properly parse properties named `async` in ES2017 mode.
......@@ -310,8 +589,7 @@ Fix bug where reserved words were broken in ES2017 mode.
Don't ignore period or 'e' characters after octal numbers.
Fix broken parsing for call expressions in default parameter values
of arrow functions.
Fix broken parsing for call expressions in default parameter values of arrow functions.
## 4.0.1 (2016-08-08)
......@@ -325,8 +603,7 @@ Fix false positives in duplicated export name errors.
The default `ecmaVersion` option value is now 7.
A number of internal method signatures changed, so plugins might need
to be updated.
A number of internal method signatures changed, so plugins might need to be updated.
### Bug fixes
......@@ -334,8 +611,7 @@ The parser now raises errors on duplicated export names.
`arguments` and `eval` can now be used in shorthand properties.
Duplicate parameter names in non-simple argument lists now always
produce an error.
Duplicate parameter names in non-simple argument lists now always produce an error.
### New features
......@@ -344,8 +620,7 @@ The `ecmaVersion` option now also accepts year-style version numbers
Support for `async`/`await` syntax when `ecmaVersion` is >= 8.
Support for trailing commas in call expressions when `ecmaVersion`
is >= 8.
Support for trailing commas in call expressions when `ecmaVersion` is >= 8.
## 3.3.0 (2016-07-25)
......@@ -357,8 +632,7 @@ Fix parser crash when parsing an array pattern with a hole.
### New features
Implement check against complex argument lists in functions that
enable strict mode in ES7.
Implement check against complex argument lists in functions that enable strict mode in ES7.
## 3.2.0 (2016-06-07)
......@@ -369,44 +643,29 @@ environment.
Properly reject shorthand properties whose name is a keyword.
Don't crash when the loose parser is called without options object.
### New features
Visitors created with `visit.make` now have their base as _prototype_,
rather than copying properties into a fresh object.
Make it possible to use `visit.ancestor` with a walk state.
Visitors created with `visit.make` now have their base as _prototype_, rather than copying properties into a fresh object.
## 3.1.0 (2016-04-18)
### Bug fixes
Fix issue where the loose parser created invalid TemplateElement nodes
for unclosed template literals.
Properly tokenize the division operator directly after a function
expression.
Properly tokenize the division operator directly after a function expression.
Allow trailing comma in destructuring arrays.
### New features
The walker now allows defining handlers for `CatchClause` nodes.
## 3.0.4 (2016-02-25)
### Fixes
Allow update expressions as left-hand-side of the ES7 exponential
operator.
Allow update expressions as left-hand-side of the ES7 exponential operator.
## 3.0.2 (2016-02-10)
### Fixes
Fix bug that accidentally made `undefined` a reserved word when
parsing ES7.
Fix bug that accidentally made `undefined` a reserved word when parsing ES7.
## 3.0.0 (2016-02-10)
......@@ -414,26 +673,21 @@ parsing ES7.
The default value of the `ecmaVersion` option is now 6 (used to be 5).
Support for comprehension syntax (which was dropped from the draft
spec) has been removed.
Support for comprehension syntax (which was dropped from the draft spec) has been removed.
### Fixes
`let` and `yield` are now “contextual keywords”, meaning you can
mostly use them as identifiers in ES5 non-strict code.
`let` and `yield` are now “contextual keywords”, meaning you can mostly use them as identifiers in ES5 non-strict code.
A parenthesized class or function expression after `export default` is
now parsed correctly.
A parenthesized class or function expression after `export default` is now parsed correctly.
### New features
When `ecmaVersion` is set to 7, Acorn will parse the exponentiation
operator (`**`).
When `ecmaVersion` is set to 7, Acorn will parse the exponentiation operator (`**`).
The identifier character ranges are now based on Unicode 8.0.0.
Plugins can now override the `raiseRecoverable` method to override the
way non-critical errors are handled.
Plugins can now override the `raiseRecoverable` method to override the way non-critical errors are handled.
## 2.7.0 (2016-01-04)
......@@ -441,25 +695,12 @@ way non-critical errors are handled.
Stop allowing rest parameters in setters.
Make sure the loose parser always attaches a `local` property to
`ImportNamespaceSpecifier` nodes.
Disallow `y` rexexp flag in ES5.
Disallow `\00` and `\000` escapes in strict mode.
Raise an error when an import name is a reserved word.
## 2.6.4 (2015-11-12)
### Fixes
Fix crash in loose parser when parsing invalid object pattern.
### New features
Support plugins in the loose parser.
## 2.6.2 (2015-11-10)
### Fixes
......@@ -480,28 +721,17 @@ Forbid using a comma after a rest pattern in an array destructuring.
Support parsing stdin in command-line tool.
## 2.5.2 (2015-10-27)
### Fixes
Fix bug where the walker walked an exported `let` statement as an
expression.
## 2.5.0 (2015-10-27)
### Fixes
Fix tokenizer support in the command-line tool.
In the loose parser, don't allow non-string-literals as import
sources.
Stop allowing `new.target` outside of functions.
Remove legacy `guard` and `guardedHandler` properties from try nodes.
Stop allowing multiple `__proto__` properties on an object literal in
strict mode.
Stop allowing multiple `__proto__` properties on an object literal in strict mode.
Don't allow rest parameters to be non-identifier patterns.
......
node_modules/acorn/LICENSE
View file @ a2e8cafb
Copyright (C) 2012-2018 by various contributors (see AUTHORS)
MIT License
Copyright (C) 2012-2020 by various contributors (see AUTHORS)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
......
node_modules/acorn/README.md
View file @ a2e8cafb
# Acorn
[![Build Status](https://travis-ci.org/acornjs/acorn.svg?branch=master)](https://travis-ci.org/acornjs/acorn)
[![NPM version](https://img.shields.io/npm/v/acorn.svg)](https://www.npmjs.com/package/acorn)
[![CDNJS](https://img.shields.io/cdnjs/v/acorn.svg)](https://cdnjs.com/libraries/acorn)
[Author funding status: ![maintainer happiness](https://marijnhaverbeke.nl/fund/status_s.png?force)](https://marijnhaverbeke.nl/fund/)
A tiny, fast JavaScript parser, written completely in JavaScript.
A tiny, fast JavaScript parser written in JavaScript.
## Community
Acorn is open source software released under an
[MIT license](https://github.com/acornjs/acorn/blob/master/LICENSE).
[MIT license](https://github.com/acornjs/acorn/blob/master/acorn/LICENSE).
You are welcome to
[report bugs](https://github.com/acornjs/acorn/issues) or create pull
......@@ -20,9 +15,7 @@ and discussion, please use the
## Installation
The easiest way to install acorn is with [`npm`][npm].
[npm]: https://www.npmjs.com/
The easiest way to install acorn is from [`npm`](https://www.npmjs.com/):
```sh
npm install acorn
......@@ -34,49 +27,49 @@ Alternately, you can download the source and build acorn yourself:
git clone https://github.com/acornjs/acorn.git
cd acorn
npm install
npm run build
```
## Components
When run in a CommonJS (node.js) or AMD environment, exported values
appear in the interfaces exposed by the individual files, as usual.
When loaded in the browser (Acorn works in any JS-enabled browser more
recent than IE5) without any kind of module management, a single
global object `acorn` will be defined, and all the exported properties
will be added to that.
## Interface
### Main parser
**parse**`(input, options)` is the main interface to the library. The
`input` parameter is a string, `options` must be an object setting
some of the options listed below. The return value will be an abstract
syntax tree object as specified by the [ESTree
spec](https://github.com/estree/estree).
This is implemented in `dist/acorn.js`, and is what you get when you
`require("acorn")` in node.js.
**parse**`(input, options)` is used to parse a JavaScript program.
The `input` parameter is a string, `options` can be undefined or an
object setting some of the options listed below. The return value will
be an abstract syntax tree object as specified by the
[ESTree spec][estree].
```javascript
let acorn = require("acorn");
console.log(acorn.parse("1 + 1", {ecmaVersion: 2020}));
```
When encountering a syntax error, the parser will raise a
`SyntaxError` object with a meaningful message. The error object will
have a `pos` property that indicates the character offset at which the
error occurred, and a `loc` object that contains a `{line, column}`
When encountering a syntax error, the parser will raise a
`SyntaxError` object with a meaningful message. The error object will
have a `pos` property that indicates the string offset at which the
error occurred, and a `loc` object that contains a `{line, column}`
object referring to that same position.
[estree]: https://github.com/estree/estree
Options are provided by in a second argument, which should be an
object containing any of these fields (only `ecmaVersion` is
required):
- **ecmaVersion**: Indicates the ECMAScript version to parse. Must be
either 3, 5, 6 (2015), 7 (2016), 8 (2017), 9 (2018) or 10 (2019, partial
support). This influences support for strict mode, the set of
reserved words, and support for new syntax features. Default is 7.
either 3, 5, 6 (or 2015), 7 (2016), 8 (2017), 9 (2018), 10 (2019),
11 (2020), 12 (2021, partial support), 13 (2022, partial support)
or `"latest"` (the latest the library supports). This influences
support for strict mode, the set of reserved words, and support
for new syntax features.
**NOTE**: Only 'stage 4' (finalized) ECMAScript features are being
implemented by Acorn.
implemented by Acorn. Other proposed new features must be
implemented through plugins.
- **sourceType**: Indicate the mode the code should be parsed in. Can be
either `"script"` or `"module"`. This influences global strict mode
and parsing of `import` and `export` declarations.
**NOTE**: If set to `"module"`, then static `import` / `export` syntax
will be valid, even if `ecmaVersion` is less than 6.
- **onInsertedSemicolon**: If given a callback, that callback will be
called whenever a missing semicolon is inserted by the parser. The
callback will be given the character offset of the point where the
......@@ -98,9 +91,18 @@ object referring to that same position.
- **allowImportExportEverywhere**: By default, `import` and `export`
declarations can only appear at a program's top level. Setting this
option to `true` allows them anywhere where a statement is allowed.
- **allowAwaitOutsideFunction**: By default, `await` expressions can only appear inside `async` functions. Setting this option to `true` allows to have top-level `await` expressions. They are still not allowed in non-`async` functions, though.
option to `true` allows them anywhere where a statement is allowed,
and also allows `import.meta` expressions to appear in scripts
(when `sourceType` is not `"module"`).
- **allowAwaitOutsideFunction**: If `false`, `await` expressions can
only appear inside `async` functions. Defaults to `true` for
`ecmaVersion` 2022 and later, `false` for lower versions. Setting this option to
`true` allows to have top-level `await` expressions. They are
still not allowed in non-`async` functions, though.
- **allowSuperOutsideMethod**: By default, `super` outside a method
raises an error. Set this to `true` to accept such code.
- **allowHashBang**: When this is enabled (off by default), if the
code starts with the characters `#!` (as in a shellscript), the
......@@ -159,9 +161,10 @@ object referring to that same position.
- **ranges**: Nodes have their start and end characters offsets
recorded in `start` and `end` properties (directly on the node,
rather than the `loc` object, which holds line/column data. To also
add a [semi-standardized][range] `range` property holding a
`[start, end]` array with the same numbers, set the `ranges` option
to `true`.
add a
[semi-standardized](https://bugzilla.mozilla.org/show_bug.cgi?id=745678)
`range` property holding a `[start, end]` array with the same
numbers, set the `ranges` option to `true`.
- **program**: It is possible to parse multiple files into a single
AST by passing the tree produced by parsing the first file as the
......@@ -184,15 +187,10 @@ object referring to that same position.
that have a single `expression` property containing the expression
inside parentheses.
[range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678
**parseExpressionAt**`(input, offset, options)` will parse a single
expression in a string, and return its AST. It will not complain if
there is more of the string left after the expression.
**getLineInfo**`(input, offset)` can be used to get a `{line,
column}` object for a given program string and character offset.
**tokenizer**`(input, options)` returns an object with a `getToken`
method that can be called repeatedly to get the next token, a `{start,
end, type, value}` object (with added `loc` property when the
......@@ -216,139 +214,30 @@ var tokens = [...acorn.tokenizer(str)];
**tokTypes** holds an object mapping names to the token type objects
that end up in the `type` properties of tokens.
#### Note on using with [Escodegen][escodegen]
Escodegen supports generating comments from AST, attached in
Esprima-specific format. In order to simulate same format in
Acorn, consider following example:
```javascript
var comments = [], tokens = [];
var ast = acorn.parse('var x = 42; // answer', {
// collect ranges for each node
ranges: true,
// collect comments in Esprima's format
onComment: comments,
// collect token ranges
onToken: tokens
});
// attach comments using collected information
escodegen.attachComments(ast, comments, tokens);
// generate code
console.log(escodegen.generate(ast, {comment: true}));
// > 'var x = 42; // answer'
```
[escodegen]: https://github.com/estools/escodegen
### dist/acorn_loose.js ###
This file implements an error-tolerant parser. It exposes a single
function. The loose parser is accessible in node.js via `require("acorn/dist/acorn_loose")`.
**parse_dammit**`(input, options)` takes the same arguments and
returns the same syntax tree as the `parse` function in `acorn.js`,
but never raises an error, and will do its best to parse syntactically
invalid code in as meaningful a way as it can. It'll insert identifier
nodes with name `"✖"` as placeholders in places where it can't make
sense of the input. Depends on `acorn.js`, because it uses the same
tokenizer.
### dist/walk.js ###
Implements an abstract syntax tree walker. Will store its interface in
`acorn.walk` when loaded without a module system.
**simple**`(node, visitors, base, state)` does a 'simple' walk over
a tree. `node` should be the AST node to walk, and `visitors` an
object with properties whose names correspond to node types in the
[ESTree spec][estree]. The properties should contain functions
that will be called with the node object and, if applicable the state
at that point. The last two arguments are optional. `base` is a walker
algorithm, and `state` is a start state. The default walker will
simply visit all statements and expressions and not produce a
meaningful state. (An example of a use of state is to track scope at
each point in the tree.)
```js
const acorn = require("acorn")
const walk = require("acorn/dist/walk")
**getLineInfo**`(input, offset)` can be used to get a `{line,
column}` object for a given program string and offset.
walk.simple(acorn.parse("let x = 10"), {
Literal(node) {
console.log(`Found a literal: ${node.value}`)
}
})
```
### The `Parser` class
**ancestor**`(node, visitors, base, state)` does a 'simple' walk over
a tree, building up an array of ancestor nodes (including the current node)
and passing the array to the callbacks as a third parameter.
Instances of the **`Parser`** class contain all the state and logic
that drives a parse. It has static methods `parse`,
`parseExpressionAt`, and `tokenizer` that match the top-level
functions by the same name.
```js
const acorn = require("acorn")
const walk = require("acorn/dist/walk")
When extending the parser with plugins, you need to call these methods
on the extended version of the class. To extend a parser with plugins,
you can use its static `extend` method.
walk.ancestor(acorn.parse("foo('hi')"), {
Literal(_, ancestors) {
console.log("This literal's ancestors are:",
ancestors.map(n => n.type))
}
})
```
**recursive**`(node, state, functions, base)` does a 'recursive'
walk, where the walker functions are responsible for continuing the
walk on the child nodes of their target node. `state` is the start
state, and `functions` should contain an object that maps node types
to walker functions. Such functions are called with `(node, state, c)`
arguments, and can cause the walk to continue on a sub-node by calling
the `c` argument on it with `(node, state)` arguments. The optional
`base` argument provides the fallback walker functions for node types
that aren't handled in the `functions` object. If not given, the
default walkers will be used.
**make**`(functions, base)` builds a new walker object by using the
walker functions in `functions` and filling in the missing ones by
taking defaults from `base`.
**full**`(node, callback, base, state)` does a 'full'
walk over a tree, calling the callback with the arguments (node, state, type)
for each node
**fullAncestor**`(node, callback, base, state)` does a 'full' walk over
a tree, building up an array of ancestor nodes (including the current node)
and passing the array to the callbacks as a third parameter.
```js
const acorn = require("acorn")
const walk = require("acorn/dist/walk")
walk.full(acorn.parse("1 + 1"), node => {
console.log(`There's a ${node.type} node at ${node.ch}`)
})
```javascript
var acorn = require("acorn");
var jsx = require("acorn-jsx");
var JSXParser = acorn.Parser.extend(jsx());
JSXParser.parse("foo(<bar/>)", {ecmaVersion: 2020});
```
**findNodeAt**`(node, start, end, test, base, state)` tries to
locate a node in a tree at the given start and/or end offsets, which
satisfies the predicate `test`. `start` and `end` can be either `null`
(as wildcard) or a number. `test` may be a string (indicating a node
type) or a function that takes `(nodeType, node)` arguments and
returns a boolean indicating whether this node is interesting. `base`
and `state` are optional, and can be used to specify a custom walker.
Nodes are tested from inner to outer, so if two nodes match the
boundaries, the inner one will be preferred.
**findNodeAround**`(node, pos, test, base, state)` is a lot like
`findNodeAt`, but will match any node that exists 'around' (spanning)
the given position.
**findNodeAfter**`(node, pos, test, base, state)` is similar to
`findNodeAround`, but will match all nodes *after* the given position
(testing outer nodes before inner nodes).
The `extend` method takes any number of plugin values, and returns a
new `Parser` class that includes the extra parser logic provided by
the plugins.
## Command line interface
......@@ -357,7 +246,7 @@ line. It accepts as arguments its input file and the following
options:
- `--ecma3|--ecma5|--ecma6|--ecma7|--ecma8|--ecma9|--ecma10`: Sets the ECMAScript version
to parse. Default is version 7.
to parse. Default is version 9.
- `--module`: Sets the parsing mode to `"module"`. Is set to `"script"` otherwise.
......@@ -365,7 +254,11 @@ options:
"end" subobjects, each of which contains the one-based line and
zero-based column numbers in `{line, column}` form.
- `--allow-hash-bang`: If the code starts with the characters #! (as in a shellscript), the first line will be treated as a comment.
- `--allow-hash-bang`: If the code starts with the characters #! (as
in a shellscript), the first line will be treated as a comment.
- `--allow-await-outside-function`: Allows top-level `await` expressions.
See the `allowAwaitOutsideFunction` option for more information.
- `--compact`: No whitespace is used in the AST output.
......@@ -375,93 +268,13 @@ options:
The utility spits out the syntax tree as JSON data.
## Build system
Acorn is written in ECMAScript 6, as a set of small modules, in the
project's `src` directory, and compiled down to bigger ECMAScript 3
files in `dist` using [Browserify](http://browserify.org) and
[Babel](http://babeljs.io/). If you are already using Babel, you can
consider including the modules directly.
The command-line test runner (`npm test`) uses the ES6 modules. The
browser-based test page (`test/index.html`) uses the compiled modules.
The `bin/build-acorn.js` script builds the latter from the former.
If you are working on Acorn, you'll probably want to try the code out
directly, without an intermediate build step. In your scripts, you can
register the Babel require shim like this:
require("babel-core/register")
That will allow you to directly `require` the ES6 modules.
## Plugins
Acorn is designed support allow plugins which, within reasonable
bounds, redefine the way the parser works. Plugins can add new token
types and new tokenizer contexts (if necessary), and extend methods in
the parser object. This is not a clean, elegant API—using it requires
an understanding of Acorn's internals, and plugins are likely to break
whenever those internals are significantly changed. But still, it is
_possible_, in this way, to create parsers for JavaScript dialects
without forking all of Acorn. And in principle it is even possible to
combine such plugins, so that if you have, for example, a plugin for
parsing types and a plugin for parsing JSX-style XML literals, you
could load them both and parse code with both JSX tags and types.
A plugin should register itself by adding a property to
`acorn.plugins`, which holds a function. Calling `acorn.parse`, a
`plugins` option can be passed, holding an object mapping plugin names
to configuration values (or just `true` for plugins that don't take
options). After the parser object has been created, the initialization
functions for the chosen plugins are called with `(parser,
configValue)` arguments. They are expected to use the `parser.extend`
method to extend parser methods. For example, the `readToken` method
could be extended like this:
```javascript
parser.extend("readToken", function(nextMethod) {
return function(code) {
console.log("Reading a token!")
return nextMethod.call(this, code)
}
})
```
The `nextMethod` argument passed to `extend`'s second argument is the
previous value of this method, and should usually be called through to
whenever the extended method does not handle the call itself.
Similarly, the loose parser allows plugins to register themselves via
`acorn.pluginsLoose`. The extension mechanism is the same as for the
normal parser:
```javascript
looseParser.extend("readToken", function(nextMethod) {
return function() {
console.log("Reading a token in the loose parser!")
return nextMethod.call(this)
}
})
```
### Existing plugins
## Existing plugins
- [`acorn-jsx`](https://github.com/RReverser/acorn-jsx): Parse [Facebook JSX syntax extensions](https://github.com/facebook/jsx)
- [`acorn-objj`](https://github.com/cappuccino/acorn-objj): [Objective-J](http://www.cappuccino-project.org/learn/objective-j.html) language parser built as Acorn plugin
Plugins for ECMAScript proposals:
Plugins for ECMAScript proposals:
- [`acorn-stage3`](https://github.com/acornjs/acorn-stage3): Parse most stage 3 proposals, bundling:
- [`acorn-async-iteration`](https://github.com/acornjs/acorn-async-iteration): Parse [async iteration proposal](https://github.com/tc39/proposal-async-iteration)
- [`acorn-bigint`](https://github.com/acornjs/acorn-bigint): Parse [BigInt proposal](https://github.com/tc39/proposal-bigint)
- [`acorn-class-fields`](https://github.com/acornjs/acorn-class-fields): Parse [class fields proposal](https://github.com/tc39/proposal-class-fields)
- [`acorn-dynamic-import`](https://github.com/kesne/acorn-dynamic-import): Parse [import() proposal](https://github.com/tc39/proposal-dynamic-import)
- [`acorn-import-meta`](https://github.com/acornjs/acorn-import-meta): Parse [import.meta proposal](https://github.com/tc39/proposal-import-meta)
- [`acorn-numeric-separator`](https://github.com/acornjs/acorn-numeric-separator): Parse [numeric separator proposal](https://github.com/tc39/proposal-numeric-separator)
- [`acorn-optional-catch-binding`](https://github.com/acornjs/acorn-optional-catch-binding): Parse [optional catch binding proposal](https://github.com/tc39/proposal-optional-catch-binding)
- [`acorn-private-methods`](https://github.com/acornjs/acorn-private-methods): parse [private methods, getters and setters proposal](https://github.com/tc39/proposal-private-methods)
- [`acorn5-object-spread`](https://github.com/adrianheine/acorn5-object-spread): Parse [Object Rest/Spread Properties proposal](https://github.com/tc39/proposal-object-rest-spread)
- [`acorn-object-rest-spread`](https://github.com/victor-homyakov/acorn-object-rest-spread): Parse [Object Rest/Spread Properties proposal](https://github.com/tc39/proposal-object-rest-spread)
- [`acorn-es7`](https://github.com/angelozerr/acorn-es7): Parse [decorator syntax proposal](https://github.com/wycats/javascript-decorators)
- [`acorn-static-class-property-initializer`](https://github.com/victor-homyakov/acorn-static-class-property-initializer): Partial support for static class properties from [ES Class Fields & Static Properties Proposal](https://github.com/tc39/proposal-class-public-fields) to support static property initializers in [React components written as ES6+ classes](https://babeljs.io/blog/2015/07/07/react-on-es6-plus)
- [`acorn-private-methods`](https://github.com/acornjs/acorn-private-methods): parse [private methods, getters and setters proposal](https://github.com/tc39/proposal-private-methods)n
node_modules/acorn/bin/_acorn.js deleted 100644 → 0
View file @ e65a993d
#!/usr/bin/env node
'use strict';
var path = require('path');
var fs = require('fs');
var acorn = require('../dist/acorn.js');
var infile;
var forceFile;
var silent = false;
var compact = false;
var tokenize = false;
var options = {};
function help(status) {
var print = (status === 0) ? console.log : console.error;
print("usage: " + path.basename(process.argv[1]) + " [--ecma3|--ecma5|--ecma6|--ecma7|--ecma8|--ecma9|...|--ecma2015|--ecma2016|--ecma2017|--ecma2018|...]");
print(" [--tokenize] [--locations] [---allow-hash-bang] [--compact] [--silent] [--module] [--help] [--] [infile]");
process.exit(status);
}
for (var i = 2; i < process.argv.length; ++i) {
var arg = process.argv[i];
if ((arg === "-" || arg[0] !== "-") && !infile) { infile = arg; }
else if (arg === "--" && !infile && i + 2 === process.argv.length) { forceFile = infile = process.argv[++i]; }
else if (arg === "--locations") { options.locations = true; }
else if (arg === "--allow-hash-bang") { options.allowHashBang = true; }
else if (arg === "--silent") { silent = true; }
else if (arg === "--compact") { compact = true; }
else if (arg === "--help") { help(0); }
else if (arg === "--tokenize") { tokenize = true; }
else if (arg === "--module") { options.sourceType = "module"; }
else {
var match = arg.match(/^--ecma(\d+)$/);
if (match)
{ options.ecmaVersion = +match[1]; }
else
{ help(1); }
}
}
function run(code) {
var result;
try {
if (!tokenize) {
result = acorn.parse(code, options);
} else {
result = [];
var tokenizer$$1 = acorn.tokenizer(code, options), token;
do {
token = tokenizer$$1.getToken();
result.push(token);
} while (token.type !== acorn.tokTypes.eof)
}
} catch (e) {
console.error(e.message);
process.exit(1);
}
if (!silent) { console.log(JSON.stringify(result, null, compact ? null : 2)); }
}
if (forceFile || infile && infile !== "-") {
run(fs.readFileSync(infile, "utf8"));
} else {
var code = "";
process.stdin.resume();
process.stdin.on("data", function (chunk) { return code += chunk; });
process.stdin.on("end", function () { return run(code); });
}
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