1543 lines
43 KiB
JavaScript
1543 lines
43 KiB
JavaScript
/**
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* @author Toru Nagashima
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* See LICENSE file in root directory for full license.
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*/
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"use strict"
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const semver = require("semver")
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const { getInnermostScope, getPropertyName } = require("eslint-utils")
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const getPackageJson = require("../util/get-package-json")
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const VERSION_MAP = new Map([
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[0.1, "0.10.0"],
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[0.12, "0.12.0"],
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[4, "4.0.0"],
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[5, "5.0.0"],
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[6, "6.0.0"],
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[6.5, "6.5.0"],
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[7, "7.0.0"],
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[7.6, "7.6.0"],
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[8, "8.0.0"],
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[8.3, "8.3.0"],
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[9, "9.0.0"],
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[10, "10.0.0"],
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])
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const VERSION_SCHEMA = {
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anyOf: [
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{ enum: Array.from(VERSION_MAP.keys()) },
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{
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type: "string",
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pattern: "^(?:0|[1-9]\\d*)\\.(?:0|[1-9]\\d*)\\.(?:0|[1-9]\\d*)$",
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},
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],
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}
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const DEFAULT_VERSION = "4.0.0"
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const FUNC_TYPE = /^(?:Arrow)?Function(?:Declaration|Expression)$/u
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const CLASS_TYPE = /^Class(?:Declaration|Expression)$/u
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const DESTRUCTURING_PARENT_TYPE = /^(?:Function(?:Declaration|Expression)|ArrowFunctionExpression|AssignmentExpression|VariableDeclarator)$/u
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const TOPLEVEL_SCOPE_TYPE = /^(?:global|function|module)$/u
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const BINARY_NUMBER = /^0[bB]/u
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const OCTAL_NUMBER = /^0[oO]/u
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const UNICODE_ESC = /(\\+)u\{[0-9a-fA-F]+?\}/gu
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const GET_OR_SET = /^(?:g|s)et$/u
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const NEW_BUILTIN_TYPES = [
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"Int8Array",
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"Uint8Array",
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"Uint8ClampedArray",
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"Int16Array",
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"Uint16Array",
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"Int32Array",
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"Uint32Array",
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"Float32Array",
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"Float64Array",
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"DataView",
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"Map",
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"Set",
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"WeakMap",
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"WeakSet",
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"Proxy",
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"Reflect",
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"Promise",
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"Symbol",
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"SharedArrayBuffer",
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"Atomics",
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]
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const SUBCLASSING_TEST_TARGETS = [
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"Array",
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"RegExp",
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"Function",
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"Promise",
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"Boolean",
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"Number",
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"String",
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"Map",
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"Set",
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]
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const PROPERTY_TEST_TARGETS = {
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Object: [
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"assign",
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"is",
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"getOwnPropertySymbols",
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"setPrototypeOf",
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"values",
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"entries",
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"getOwnPropertyDescriptors",
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],
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String: ["raw", "fromCodePoint"],
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Array: ["from", "of"],
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Number: [
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"isFinite",
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"isInteger",
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"isSafeInteger",
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"isNaN",
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"EPSILON",
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"MIN_SAFE_INTEGER",
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"MAX_SAFE_INTEGER",
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],
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Math: [
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"clz32",
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"imul",
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"sign",
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"log10",
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"log2",
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"log1p",
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"expm1",
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"cosh",
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"sinh",
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"tanh",
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"acosh",
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"asinh",
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"atanh",
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"trunc",
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"fround",
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"cbrt",
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"hypot",
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],
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Symbol: [
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"hasInstance",
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"isConcatSpreadablec",
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"iterator",
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"species",
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"replace",
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"search",
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"split",
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"match",
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"toPrimitive",
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"toStringTag",
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"unscopables",
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],
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Atomics: [
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"add",
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"and",
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"compareExchange",
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"exchange",
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"wait",
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"wake",
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"isLockFree",
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"load",
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"or",
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"store",
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"sub",
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"xor",
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],
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}
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const REGEXP_NAMED_GROUP = /(\\*)\(\?<[_$\w]/u
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const REGEXP_LOOKBEHIND = /(\\*)\(\?<[=!]/u
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const REGEXP_UNICODE_PROPERTY = /(\\*)\\[pP]\{.+?\}/u
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const FEATURES = {
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defaultParameters: {
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alias: ["syntax"],
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name: "Default parameters",
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node: "6.0.0",
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},
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restParameters: {
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alias: ["syntax"],
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name: "Rest parameters",
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node: "6.0.0",
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},
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spreadOperators: {
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alias: ["syntax"],
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name: "Spread operators",
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node: "5.0.0",
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},
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objectLiteralExtensions: {
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alias: ["syntax"],
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name: "Object literal extensions",
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node: "4.0.0",
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},
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objectPropertyShorthandOfGetSet: {
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alias: ["syntax", "objectLiteralExtensions"],
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name: "Property shorthand of 'get' and 'set'",
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node: "6.0.0",
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},
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forOf: {
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alias: ["syntax"],
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name: "'for..of' loops",
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node: "0.12.0",
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},
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binaryNumberLiterals: {
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alias: ["syntax"],
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name: "Binary number literals",
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node: "4.0.0",
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},
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octalNumberLiterals: {
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alias: ["syntax"],
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name: "Octal number literals",
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node: "4.0.0",
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},
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templateStrings: {
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alias: ["syntax"],
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name: "Template strings",
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node: "4.0.0",
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},
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regexpY: {
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alias: ["syntax"],
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name: "RegExp 'y' flags",
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node: "6.0.0",
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},
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regexpU: {
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alias: ["syntax"],
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name: "RegExp 'u' flags",
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node: "6.0.0",
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},
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destructuring: {
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alias: ["syntax"],
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name: "Destructuring",
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node: "6.0.0",
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},
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unicodeCodePointEscapes: {
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alias: ["syntax"],
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name: "Unicode code point escapes",
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node: "4.0.0",
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},
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"new.target": {
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alias: ["syntax"],
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name: "'new.target'",
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node: "5.0.0",
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},
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const: {
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alias: ["syntax"],
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name: "'const' declarations",
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node: {
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sloppy: "6.0.0",
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strict: "4.0.0",
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},
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},
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let: {
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alias: ["syntax"],
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name: "'let' declarations",
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node: {
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sloppy: "6.0.0",
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strict: "4.0.0",
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},
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},
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blockScopedFunctions: {
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alias: ["syntax"],
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name: "Block-scoped functions",
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node: {
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sloppy: "6.0.0",
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strict: "4.0.0",
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},
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},
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arrowFunctions: {
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alias: ["syntax"],
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name: "Arrow functions",
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node: "4.0.0",
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},
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generatorFunctions: {
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alias: ["syntax"],
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name: "Generator functions",
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node: "4.0.0",
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},
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classes: {
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alias: ["syntax"],
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name: "Classes",
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node: {
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sloppy: "6.0.0",
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strict: "4.0.0",
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},
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},
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modules: {
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alias: ["syntax"],
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name: "Import and export declarations",
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node: null,
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},
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exponentialOperators: {
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alias: ["syntax"],
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name: "Exponential operators (**)",
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node: "7.0.0",
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},
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asyncAwait: {
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alias: ["syntax"],
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name: "Async functions",
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node: "7.6.0",
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},
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trailingCommasInFunctions: {
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alias: ["syntax"],
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name: "Trailing commas in functions",
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node: "8.0.0",
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},
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//------------------------------------------
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templateLiteralRevision: {
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alias: ["syntax"],
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name: "Illegal escape sequences in taggled templates",
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node: "9.0.0",
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},
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regexpS: {
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alias: ["syntax"],
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name: "RegExp 's' flags",
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node: "9.0.0",
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},
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regexpNamedCaptureGroups: {
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alias: ["syntax"],
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name: "RegExp named capture groups",
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node: "10.0.0",
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},
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regexpLookbehind: {
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alias: ["syntax"],
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name: "RegExp lookbehind assertions",
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node: "9.0.0",
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},
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regexpUnicodeProperties: {
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alias: ["syntax"],
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name: "RegExp Unicode property escapes",
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node: "10.0.0",
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},
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restProperties: {
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alias: ["syntax"],
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name: "Rest properties",
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node: "8.3.0",
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},
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spreadProperties: {
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alias: ["syntax"],
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name: "Spread properties",
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node: "8.3.0",
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},
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asyncGenerators: {
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alias: ["syntax"],
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name: "Async generators",
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node: "10.0.0",
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},
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forAwaitOf: {
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alias: ["syntax"],
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name: "for-await-of loops",
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node: "10.0.0",
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},
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Int8Array: {
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alias: ["runtime", "globalObjects", "typedArrays"],
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name: "'Int8Array'",
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singular: true,
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node: "0.12.0",
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},
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Uint8Array: {
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alias: ["runtime", "globalObjects", "typedArrays"],
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name: "'Uint8Array'",
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singular: true,
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node: "0.12.0",
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},
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Uint8ClampedArray: {
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alias: ["runtime", "globalObjects", "typedArrays"],
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name: "'Uint8ClampedArray'",
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singular: true,
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node: "0.12.0",
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},
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Int16Array: {
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alias: ["runtime", "globalObjects", "typedArrays"],
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name: "'Int16Array'",
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singular: true,
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node: "0.12.0",
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},
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Uint16Array: {
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alias: ["runtime", "globalObjects", "typedArrays"],
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name: "'Uint16Array'",
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singular: true,
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node: "0.12.0",
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},
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Int32Array: {
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alias: ["runtime", "globalObjects", "typedArrays"],
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name: "'Int32Array'",
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singular: true,
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node: "0.12.0",
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},
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Uint32Array: {
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alias: ["runtime", "globalObjects", "typedArrays"],
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name: "'Uint32Array'",
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singular: true,
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node: "0.12.0",
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},
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Float32Array: {
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alias: ["runtime", "globalObjects", "typedArrays"],
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name: "'Float32Array'",
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singular: true,
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node: "0.12.0",
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},
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Float64Array: {
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alias: ["runtime", "globalObjects", "typedArrays"],
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name: "'Float64Array'",
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singular: true,
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node: "0.12.0",
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},
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DataView: {
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alias: ["runtime", "globalObjects", "typedArrays"],
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name: "'DataView'",
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singular: true,
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node: "0.12.0",
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},
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Map: {
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alias: ["runtime", "globalObjects"],
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name: "'Map'",
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singular: true,
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node: "0.12.0",
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},
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Set: {
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alias: ["runtime", "globalObjects"],
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name: "'Set'",
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singular: true,
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node: "0.12.0",
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},
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WeakMap: {
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alias: ["runtime", "globalObjects"],
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name: "'WeakMap'",
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singular: true,
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node: "0.12.0",
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},
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WeakSet: {
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alias: ["runtime", "globalObjects"],
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name: "'WeakSet'",
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singular: true,
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node: "0.12.0",
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},
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Proxy: {
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alias: ["runtime", "globalObjects"],
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name: "'Proxy'",
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singular: true,
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node: "6.0.0",
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},
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Reflect: {
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alias: ["runtime", "globalObjects"],
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name: "'Reflect'",
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singular: true,
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node: "6.0.0",
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},
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Promise: {
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alias: ["runtime", "globalObjects"],
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name: "'Promise'",
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singular: true,
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node: "0.12.0",
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},
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Symbol: {
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alias: ["runtime", "globalObjects"],
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name: "'Symbol'",
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singular: true,
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node: "0.12.0",
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},
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SharedArrayBuffer: {
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alias: ["runtime", "globalObjects"],
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name: "'SharedArrayBuffer'",
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singular: true,
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node: "9.0.0",
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},
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Atomics: {
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alias: ["runtime", "globalObjects"],
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name: "'Atomics'",
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singular: true,
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node: "9.0.0",
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},
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"Object.assign": {
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alias: ["runtime", "staticMethods", "Object.*"],
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name: "'Object.assign'",
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singular: true,
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node: "4.0.0",
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},
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"Object.is": {
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alias: ["runtime", "staticMethods", "Object.*"],
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name: "'Object.is'",
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singular: true,
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node: "0.12.0",
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},
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"Object.getOwnPropertySymbols": {
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alias: ["runtime", "staticMethods", "Object.*"],
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name: "'Object.getOwnPropertySymbols'",
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singular: true,
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node: "0.12.0",
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},
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"Object.setPrototypeOf": {
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alias: ["runtime", "staticMethods", "Object.*"],
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name: "'Object.setPrototypeOf'",
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singular: true,
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|
node: "0.12.0",
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},
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|
"Object.values": {
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|
alias: ["runtime", "staticMethods", "Object.*"],
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|
name: "'Object.values'",
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|
singular: true,
|
|
node: "7.0.0",
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|
},
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|
"Object.entries": {
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|
alias: ["runtime", "staticMethods", "Object.*"],
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name: "'Object.entries'",
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|
singular: true,
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|
node: "7.0.0",
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|
},
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|
"Object.getOwnPropertyDescriptors": {
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alias: ["runtime", "staticMethods", "Object.*"],
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|
name: "'Object.getOwnPropertyDescriptors'",
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singular: true,
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|
node: "7.0.0",
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|
},
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|
|
|
"String.raw": {
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|
alias: ["runtime", "staticMethods", "String.*"],
|
|
name: "'String.raw'",
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|
singular: true,
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|
node: "4.0.0",
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|
},
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|
"String.fromCodePoint": {
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|
alias: ["runtime", "staticMethods", "String.*"],
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|
name: "'String.fromCodePoint'",
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|
singular: true,
|
|
node: "4.0.0",
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|
},
|
|
|
|
"Array.from": {
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|
alias: ["runtime", "staticMethods", "Array.*"],
|
|
name: "'Array.from'",
|
|
singular: true,
|
|
node: "4.0.0",
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|
},
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|
"Array.of": {
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|
alias: ["runtime", "staticMethods", "Array.*"],
|
|
name: "'Array.of'",
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|
singular: true,
|
|
node: "4.0.0",
|
|
},
|
|
|
|
"Number.isFinite": {
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|
alias: ["runtime", "staticMethods", "Number.*"],
|
|
name: "'Number.isFinite'",
|
|
singular: true,
|
|
node: "0.10.0",
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|
},
|
|
"Number.isInteger": {
|
|
alias: ["runtime", "staticMethods", "Number.*"],
|
|
name: "'Number.isInteger'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Number.isSafeInteger": {
|
|
alias: ["runtime", "staticMethods", "Number.*"],
|
|
name: "'Number.isSafeInteger'",
|
|
singular: true,
|
|
node: "0.12.0",
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|
},
|
|
"Number.isNaN": {
|
|
alias: ["runtime", "staticMethods", "Number.*"],
|
|
name: "'Number.isNaN'",
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|
singular: true,
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|
node: "0.10.0",
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|
},
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|
"Number.EPSILON": {
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|
alias: ["runtime", "staticMethods", "Number.*"],
|
|
name: "'Number.EPSILON'",
|
|
singular: true,
|
|
node: "0.12.0",
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|
},
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|
"Number.MIN_SAFE_INTEGER": {
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|
alias: ["runtime", "staticMethods", "Number.*"],
|
|
name: "'Number.MIN_SAFE_INTEGER'",
|
|
singular: true,
|
|
node: "0.12.0",
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|
},
|
|
"Number.MAX_SAFE_INTEGER": {
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|
alias: ["runtime", "staticMethods", "Number.*"],
|
|
name: "'Number.MAX_SAFE_INTEGER'",
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|
singular: true,
|
|
node: "0.12.0",
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|
},
|
|
|
|
"Math.clz32": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.clz32'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.imul": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.imul'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.sign": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.sign'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.log10": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.log10'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.log2": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.log2'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.log1p": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.log1p'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.expm1": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.expm1'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.cosh": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.cosh'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.sinh": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.sinh'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.tanh": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.tanh'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.acosh": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.acosh'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.asinh": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.asinh'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.atanh": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.atanh'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.trunc": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.trunc'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.fround": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.fround'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.cbrt": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.cbrt'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Math.hypot": {
|
|
alias: ["runtime", "staticMethods", "Math.*"],
|
|
name: "'Math.hypot'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
|
|
"Symbol.hasInstance": {
|
|
alias: ["runtime", "staticMethods", "Symbol.*"],
|
|
name: "'Symbol.hasInstance'",
|
|
singular: true,
|
|
node: "6.5.0",
|
|
},
|
|
"Symbol.isConcatSpreadablec": {
|
|
alias: ["runtime", "staticMethods", "Symbol.*"],
|
|
name: "'Symbol.isConcatSpreadablec'",
|
|
singular: true,
|
|
node: "6.0.0",
|
|
},
|
|
"Symbol.iterator": {
|
|
alias: ["runtime", "staticMethods", "Symbol.*"],
|
|
name: "'Symbol.iterator'",
|
|
singular: true,
|
|
node: "0.12.0",
|
|
},
|
|
"Symbol.species": {
|
|
alias: ["runtime", "staticMethods", "Symbol.*"],
|
|
name: "'Symbol.species'",
|
|
singular: true,
|
|
node: "6.5.0",
|
|
},
|
|
"Symbol.replace": {
|
|
alias: ["runtime", "staticMethods", "Symbol.*"],
|
|
name: "'Symbol.replace'",
|
|
singular: true,
|
|
node: "6.0.0",
|
|
},
|
|
"Symbol.search": {
|
|
alias: ["runtime", "staticMethods", "Symbol.*"],
|
|
name: "'Symbol.search'",
|
|
singular: true,
|
|
node: "6.0.0",
|
|
},
|
|
"Symbol.split": {
|
|
alias: ["runtime", "staticMethods", "Symbol.*"],
|
|
name: "'Symbol.split'",
|
|
singular: true,
|
|
node: "6.0.0",
|
|
},
|
|
"Symbol.match": {
|
|
alias: ["runtime", "staticMethods", "Symbol.*"],
|
|
name: "'Symbol.match'",
|
|
singular: true,
|
|
node: "6.0.0",
|
|
},
|
|
"Symbol.toPrimitive": {
|
|
alias: ["runtime", "staticMethods", "Symbol.*"],
|
|
name: "'Symbol.toPrimitive'",
|
|
singular: true,
|
|
node: "6.0.0",
|
|
},
|
|
"Symbol.toStringTag": {
|
|
alias: ["runtime", "staticMethods", "Symbol.*"],
|
|
name: "'Symbol.toStringTag'",
|
|
singular: true,
|
|
node: "6.0.0",
|
|
},
|
|
"Symbol.unscopables": {
|
|
alias: ["runtime", "staticMethods", "Symbol.*"],
|
|
name: "'Symbol.unscopables'",
|
|
singular: true,
|
|
node: "4.0.0",
|
|
},
|
|
|
|
"Atomics.add": {
|
|
alias: ["runtime", "staticMethods", "Atomics.*"],
|
|
name: "'Atomics.add'",
|
|
singular: true,
|
|
node: "9.0.0",
|
|
},
|
|
"Atomics.and": {
|
|
alias: ["runtime", "staticMethods", "Atomics.*"],
|
|
name: "'Atomics.and'",
|
|
singular: true,
|
|
node: "9.0.0",
|
|
},
|
|
"Atomics.compareExchange": {
|
|
alias: ["runtime", "staticMethods", "Atomics.*"],
|
|
name: "'Atomics.compareExchange'",
|
|
singular: true,
|
|
node: "9.0.0",
|
|
},
|
|
"Atomics.exchange": {
|
|
alias: ["runtime", "staticMethods", "Atomics.*"],
|
|
name: "'Atomics.exchange'",
|
|
singular: true,
|
|
node: "9.0.0",
|
|
},
|
|
"Atomics.wait": {
|
|
alias: ["runtime", "staticMethods", "Atomics.*"],
|
|
name: "'Atomics.wait'",
|
|
singular: true,
|
|
node: "9.0.0",
|
|
},
|
|
"Atomics.wake": {
|
|
alias: ["runtime", "staticMethods", "Atomics.*"],
|
|
name: "'Atomics.wake'",
|
|
singular: true,
|
|
node: "9.0.0",
|
|
},
|
|
"Atomics.isLockFree": {
|
|
alias: ["runtime", "staticMethods", "Atomics.*"],
|
|
name: "'Atomics.isLockFree'",
|
|
singular: true,
|
|
node: "9.0.0",
|
|
},
|
|
"Atomics.load": {
|
|
alias: ["runtime", "staticMethods", "Atomics.*"],
|
|
name: "'Atomics.load'",
|
|
singular: true,
|
|
node: "9.0.0",
|
|
},
|
|
"Atomics.or": {
|
|
alias: ["runtime", "staticMethods", "Atomics.*"],
|
|
name: "'Atomics.or'",
|
|
singular: true,
|
|
node: "9.0.0",
|
|
},
|
|
"Atomics.store": {
|
|
alias: ["runtime", "staticMethods", "Atomics.*"],
|
|
name: "'Atomics.store'",
|
|
singular: true,
|
|
node: "9.0.0",
|
|
},
|
|
"Atomics.sub": {
|
|
alias: ["runtime", "staticMethods", "Atomics.*"],
|
|
name: "'Atomics.sub'",
|
|
singular: true,
|
|
node: "9.0.0",
|
|
},
|
|
"Atomics.xor": {
|
|
alias: ["runtime", "staticMethods", "Atomics.*"],
|
|
name: "'Atomics.xor'",
|
|
singular: true,
|
|
node: "9.0.0",
|
|
},
|
|
|
|
extendsArray: {
|
|
alias: ["runtime", "extends"],
|
|
name: "Subclassing of 'Array'",
|
|
singular: true,
|
|
node: "6.0.0",
|
|
},
|
|
extendsRegExp: {
|
|
alias: ["runtime", "extends"],
|
|
name: "Subclassing of 'RegExp'",
|
|
singular: true,
|
|
node: "5.0.0",
|
|
},
|
|
extendsFunction: {
|
|
alias: ["runtime", "extends"],
|
|
name: "Subclassing of 'Function'",
|
|
singular: true,
|
|
node: "6.0.0",
|
|
},
|
|
extendsPromise: {
|
|
alias: ["runtime", "extends"],
|
|
name: "Subclassing of 'Promise'",
|
|
singular: true,
|
|
node: "5.0.0",
|
|
},
|
|
extendsBoolean: {
|
|
alias: ["runtime", "extends"],
|
|
name: "Subclassing of 'Boolean'",
|
|
singular: true,
|
|
node: "4.0.0",
|
|
},
|
|
extendsNumber: {
|
|
alias: ["runtime", "extends"],
|
|
name: "Subclassing of 'Number'",
|
|
singular: true,
|
|
node: "4.0.0",
|
|
},
|
|
extendsString: {
|
|
alias: ["runtime", "extends"],
|
|
name: "Subclassing of 'String'",
|
|
singular: true,
|
|
node: "4.0.0",
|
|
},
|
|
extendsMap: {
|
|
alias: ["runtime", "extends"],
|
|
name: "Subclassing of 'Map'",
|
|
singular: true,
|
|
node: "4.0.0",
|
|
},
|
|
extendsSet: {
|
|
alias: ["runtime", "extends"],
|
|
name: "Subclassing of 'Set'",
|
|
singular: true,
|
|
node: "4.0.0",
|
|
},
|
|
extendsNull: {
|
|
alias: ["runtime", "extends"],
|
|
name: "'extends null'",
|
|
singular: true,
|
|
node: null,
|
|
},
|
|
}
|
|
const OPTIONS = Object.keys(FEATURES)
|
|
|
|
/**
|
|
* Gets default version configuration of this rule.
|
|
*
|
|
* This finds and reads 'package.json' file, then parses 'engines.node' field.
|
|
* If it's nothing, this returns null.
|
|
*
|
|
* @param {string} filename - The file name of the current linting file.
|
|
* @returns {string} The default version configuration.
|
|
*/
|
|
function getDefaultVersion(filename) {
|
|
const info = getPackageJson(filename)
|
|
const nodeVersion = info && info.engines && info.engines.node
|
|
|
|
return semver.validRange(nodeVersion) || DEFAULT_VERSION
|
|
}
|
|
|
|
/**
|
|
* Gets values of the `ignores` option.
|
|
*
|
|
* @returns {string[]} Values of the `ignores` option.
|
|
*/
|
|
function getIgnoresEnum() {
|
|
return Object.keys(
|
|
OPTIONS.reduce((retv, key) => {
|
|
for (const alias of FEATURES[key].alias) {
|
|
retv[alias] = true
|
|
}
|
|
retv[key] = true
|
|
return retv
|
|
}, Object.create(null))
|
|
)
|
|
}
|
|
|
|
/**
|
|
* Checks whether a given key should be ignored or not.
|
|
*
|
|
* @param {string} key - A key to check.
|
|
* @param {string[]} ignores - An array of keys and aliases to be ignored.
|
|
* @returns {boolean} `true` if the key should be ignored.
|
|
*/
|
|
function isIgnored(key, ignores) {
|
|
return (
|
|
ignores.indexOf(key) !== -1 ||
|
|
FEATURES[key].alias.some(alias => ignores.indexOf(alias) !== -1)
|
|
)
|
|
}
|
|
|
|
/**
|
|
* Parses the options.
|
|
*
|
|
* @param {number|string|object|undefined} options - An option object to parse.
|
|
* @param {number} defaultVersion - The default version to use if the version option was omitted.
|
|
* @returns {object} Parsed value.
|
|
*/
|
|
function parseOptions(options, defaultVersion) {
|
|
let version = null
|
|
let range = null
|
|
let ignores = []
|
|
|
|
if (typeof options === "number") {
|
|
version = VERSION_MAP.get(options)
|
|
} else if (typeof options === "string") {
|
|
version = options
|
|
} else if (typeof options === "object") {
|
|
version =
|
|
typeof options.version === "number"
|
|
? VERSION_MAP.get(options.version)
|
|
: options.version
|
|
|
|
ignores = options.ignores || []
|
|
}
|
|
|
|
range = semver.validRange(version ? `>=${version}` : defaultVersion)
|
|
if (!version) {
|
|
version = defaultVersion
|
|
}
|
|
|
|
return Object.freeze({
|
|
version,
|
|
features: Object.freeze(
|
|
OPTIONS.reduce((retv, key) => {
|
|
const feature = FEATURES[key]
|
|
|
|
if (isIgnored(key, ignores)) {
|
|
retv[key] = Object.freeze({
|
|
name: feature.name,
|
|
singular: Boolean(feature.singular),
|
|
supported: true,
|
|
supportedInStrict: true,
|
|
})
|
|
} else if (typeof feature.node === "string") {
|
|
retv[key] = Object.freeze({
|
|
name: feature.name,
|
|
singular: Boolean(feature.singular),
|
|
supported: !semver.intersects(
|
|
range,
|
|
`<${feature.node}`
|
|
),
|
|
supportedInStrict: !semver.intersects(
|
|
range,
|
|
`<${feature.node}`
|
|
),
|
|
})
|
|
} else {
|
|
retv[key] = Object.freeze({
|
|
name: feature.name,
|
|
singular: Boolean(feature.singular),
|
|
supported:
|
|
feature.node != null &&
|
|
feature.node.sloppy != null &&
|
|
!semver.intersects(
|
|
range,
|
|
`<${feature.node.sloppy}`
|
|
),
|
|
supportedInStrict:
|
|
feature.node != null &&
|
|
feature.node.strict != null &&
|
|
!semver.intersects(
|
|
range,
|
|
`<${feature.node.strict}`
|
|
),
|
|
})
|
|
}
|
|
|
|
return retv
|
|
}, Object.create(null))
|
|
),
|
|
})
|
|
}
|
|
|
|
/**
|
|
* Find the scope that a given node belongs to.
|
|
* @param {Scope} initialScope The initial scope to find.
|
|
* @param {Node} node The AST node.
|
|
* @returns {Scope} The scope that the node belongs to.
|
|
*/
|
|
function normalizeScope(initialScope, node) {
|
|
let scope = getInnermostScope(initialScope, node)
|
|
|
|
while (scope && scope.block === node) {
|
|
scope = scope.upper
|
|
}
|
|
|
|
return scope
|
|
}
|
|
|
|
/**
|
|
* Checks whether the given string has `\u{90ABCDEF}`-like escapes.
|
|
*
|
|
* @param {string} raw - The string to check.
|
|
* @returns {boolean} `true` if the string has Unicode code point escapes.
|
|
*/
|
|
function hasUnicodeCodePointEscape(raw) {
|
|
let match = null
|
|
|
|
UNICODE_ESC.lastIndex = 0
|
|
while ((match = UNICODE_ESC.exec(raw)) != null) {
|
|
if (match[1].length % 2 === 1) {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
/**
|
|
* Check a given string has a given pattern.
|
|
* @param {string} s A string to check.
|
|
* @param {RegExp} pattern A RegExp object to check.
|
|
* @returns {boolean} `true` if the string has the pattern.
|
|
*/
|
|
function hasPattern(s, pattern) {
|
|
const m = pattern.exec(s)
|
|
return m != null && (m[1] || "").length % 2 === 0
|
|
}
|
|
|
|
module.exports = {
|
|
meta: {
|
|
docs: {
|
|
description:
|
|
"disallow unsupported ECMAScript features on the specified version",
|
|
category: "Possible Errors",
|
|
recommended: false,
|
|
replacedBy: [
|
|
"node/no-unsupported-features/es-syntax",
|
|
"node/no-unsupported-features/es-builtins",
|
|
],
|
|
url:
|
|
"https://github.com/mysticatea/eslint-plugin-node/blob/v10.0.0/docs/rules/no-unsupported-features.md",
|
|
},
|
|
type: "problem",
|
|
deprecated: true,
|
|
fixable: null,
|
|
schema: [
|
|
{
|
|
anyOf: [
|
|
VERSION_SCHEMA.anyOf[0],
|
|
VERSION_SCHEMA.anyOf[1],
|
|
{
|
|
type: "object",
|
|
properties: {
|
|
version: VERSION_SCHEMA,
|
|
ignores: {
|
|
type: "array",
|
|
items: { enum: getIgnoresEnum() },
|
|
uniqueItems: true,
|
|
},
|
|
},
|
|
additionalProperties: false,
|
|
},
|
|
],
|
|
},
|
|
],
|
|
},
|
|
create(context) {
|
|
const sourceCode = context.getSourceCode()
|
|
const supportInfo = parseOptions(
|
|
context.options[0],
|
|
getDefaultVersion(context.getFilename())
|
|
)
|
|
|
|
/**
|
|
* Gets the references of the specified global variables.
|
|
*
|
|
* @param {string[]} names - Variable names to get.
|
|
* @returns {void}
|
|
*/
|
|
function* getReferences(names) {
|
|
const globalScope = context.getScope()
|
|
|
|
for (const name of names) {
|
|
const variable = globalScope.set.get(name)
|
|
|
|
if (variable && variable.defs.length === 0) {
|
|
yield* variable.references
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Checks whether the given function has trailing commas or not.
|
|
*
|
|
* @param {ASTNode} node - The function node to check.
|
|
* @returns {boolean} `true` if the function has trailing commas.
|
|
*/
|
|
function hasTrailingCommaForFunction(node) {
|
|
const length = node.params.length
|
|
|
|
return (
|
|
length >= 1 &&
|
|
sourceCode.getTokenAfter(node.params[length - 1]).value === ","
|
|
)
|
|
}
|
|
|
|
/**
|
|
* Checks whether the given call expression has trailing commas or not.
|
|
*
|
|
* @param {ASTNode} node - The call expression node to check.
|
|
* @returns {boolean} `true` if the call expression has trailing commas.
|
|
*/
|
|
function hasTrailingCommaForCall(node) {
|
|
return (
|
|
node.arguments.length >= 1 &&
|
|
sourceCode.getLastToken(node, 1).value === ","
|
|
)
|
|
}
|
|
|
|
/**
|
|
* Checks whether the given class extends from null or not.
|
|
*
|
|
* @param {ASTNode} node - The class node to check.
|
|
* @returns {boolean} `true` if the class extends from null.
|
|
*/
|
|
function extendsNull(node) {
|
|
return (
|
|
node.superClass != null &&
|
|
node.superClass.type === "Literal" &&
|
|
node.superClass.value === null
|
|
)
|
|
}
|
|
|
|
/**
|
|
* Reports a given node if the specified feature is not supported.
|
|
*
|
|
* @param {ASTNode} node - A node to be reported.
|
|
* @param {string} key - A feature name to report.
|
|
* @returns {void}
|
|
*/
|
|
function report(node, key) {
|
|
const version = supportInfo.version
|
|
const feature = supportInfo.features[key]
|
|
if (feature.supported) {
|
|
return
|
|
}
|
|
|
|
if (!feature.supportedInStrict) {
|
|
context.report({
|
|
node,
|
|
message:
|
|
"{{feature}} {{be}} not supported yet on Node {{version}}.",
|
|
data: {
|
|
feature: feature.name,
|
|
be: feature.singular ? "is" : "are",
|
|
version,
|
|
},
|
|
})
|
|
} else if (!normalizeScope(context.getScope(), node).isStrict) {
|
|
context.report({
|
|
node,
|
|
message:
|
|
"{{feature}} {{be}} not supported yet on Node {{version}}.",
|
|
data: {
|
|
feature: `${feature.name} in non-strict mode`,
|
|
be: feature.singular ? "is" : "are",
|
|
version,
|
|
},
|
|
})
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Validate RegExp syntax.
|
|
* @param {string} pattern A RegExp pattern to check.
|
|
* @param {string} flags A RegExp flags to check.
|
|
* @param {ASTNode} node A node to report.
|
|
* @returns {void}
|
|
*/
|
|
function validateRegExp(pattern, flags, node) {
|
|
if (typeof pattern === "string") {
|
|
if (hasPattern(pattern, REGEXP_NAMED_GROUP)) {
|
|
report(node, "regexpNamedCaptureGroups")
|
|
}
|
|
if (hasPattern(pattern, REGEXP_LOOKBEHIND)) {
|
|
report(node, "regexpLookbehind")
|
|
}
|
|
if (hasPattern(pattern, REGEXP_UNICODE_PROPERTY)) {
|
|
report(node, "regexpUnicodeProperties")
|
|
}
|
|
}
|
|
if (typeof flags === "string") {
|
|
if (flags.indexOf("y") !== -1) {
|
|
report(node, "regexpY")
|
|
}
|
|
if (flags.indexOf("u") !== -1) {
|
|
report(node, "regexpU")
|
|
}
|
|
if (flags.indexOf("s") !== -1) {
|
|
report(node, "regexpS")
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Validate RegExp syntax in a RegExp literal.
|
|
* @param {ASTNode} node A Literal node to check.
|
|
* @returns {void}
|
|
*/
|
|
function validateRegExpLiteral(node) {
|
|
validateRegExp(node.regex.pattern, node.regex.flags, node)
|
|
}
|
|
|
|
/**
|
|
* Validate RegExp syntax in the first argument of `new RegExp()`.
|
|
* @param {ASTNode} node A NewExpression node to check.
|
|
* @returns {void}
|
|
*/
|
|
function validateRegExpString(node) {
|
|
const patternNode = node.arguments[0]
|
|
const flagsNode = node.arguments[1]
|
|
const pattern =
|
|
patternNode &&
|
|
patternNode.type === "Literal" &&
|
|
typeof patternNode.value === "string"
|
|
? patternNode.value
|
|
: null
|
|
const flags =
|
|
flagsNode &&
|
|
flagsNode.type === "Literal" &&
|
|
typeof flagsNode.value === "string"
|
|
? flagsNode.value
|
|
: null
|
|
validateRegExp(pattern, flags, node)
|
|
}
|
|
|
|
return {
|
|
"Program:exit"() {
|
|
// Check new global variables.
|
|
for (const name of NEW_BUILTIN_TYPES) {
|
|
for (const reference of getReferences([name])) {
|
|
// Ignore if it's using new static methods.
|
|
const node = reference.identifier
|
|
const parentNode = node.parent
|
|
const properties = PROPERTY_TEST_TARGETS[name]
|
|
if (
|
|
properties &&
|
|
parentNode.type === "MemberExpression"
|
|
) {
|
|
const propertyName = getPropertyName(parentNode)
|
|
if (properties.indexOf(propertyName) !== -1) {
|
|
continue
|
|
}
|
|
}
|
|
|
|
report(reference.identifier, name)
|
|
}
|
|
}
|
|
|
|
// Check static methods.
|
|
for (const reference of getReferences(
|
|
Object.keys(PROPERTY_TEST_TARGETS)
|
|
)) {
|
|
const node = reference.identifier
|
|
const parentNode = node.parent
|
|
if (
|
|
parentNode.type !== "MemberExpression" ||
|
|
parentNode.object !== node
|
|
) {
|
|
continue
|
|
}
|
|
|
|
const objectName = node.name
|
|
const properties = PROPERTY_TEST_TARGETS[objectName]
|
|
const propertyName = getPropertyName(parentNode)
|
|
if (
|
|
propertyName &&
|
|
properties.indexOf(propertyName) !== -1
|
|
) {
|
|
report(parentNode, `${objectName}.${propertyName}`)
|
|
}
|
|
}
|
|
|
|
// Check subclassing
|
|
for (const reference of getReferences(
|
|
SUBCLASSING_TEST_TARGETS
|
|
)) {
|
|
const node = reference.identifier
|
|
const parentNode = node.parent
|
|
if (
|
|
CLASS_TYPE.test(parentNode.type) &&
|
|
parentNode.superClass === node
|
|
) {
|
|
report(node, `extends${node.name}`)
|
|
}
|
|
}
|
|
},
|
|
|
|
ArrowFunctionExpression(node) {
|
|
report(node, "arrowFunctions")
|
|
if (node.async) {
|
|
report(node, "asyncAwait")
|
|
}
|
|
if (hasTrailingCommaForFunction(node)) {
|
|
report(node, "trailingCommasInFunctions")
|
|
}
|
|
},
|
|
|
|
AssignmentPattern(node) {
|
|
if (FUNC_TYPE.test(node.parent.type)) {
|
|
report(node, "defaultParameters")
|
|
}
|
|
},
|
|
|
|
FunctionDeclaration(node) {
|
|
const scope = context.getScope().upper
|
|
if (!TOPLEVEL_SCOPE_TYPE.test(scope.type)) {
|
|
report(node, "blockScopedFunctions")
|
|
}
|
|
if (node.generator) {
|
|
report(node, "generatorFunctions")
|
|
}
|
|
if (node.async) {
|
|
report(node, "asyncAwait")
|
|
}
|
|
if (hasTrailingCommaForFunction(node)) {
|
|
report(node, "trailingCommasInFunctions")
|
|
}
|
|
if (node.async && node.generator) {
|
|
report(node, "asyncGenerators")
|
|
}
|
|
},
|
|
|
|
FunctionExpression(node) {
|
|
if (node.generator) {
|
|
report(node, "generatorFunctions")
|
|
}
|
|
if (node.async) {
|
|
report(node, "asyncAwait")
|
|
}
|
|
if (hasTrailingCommaForFunction(node)) {
|
|
report(node, "trailingCommasInFunctions")
|
|
}
|
|
if (node.async && node.generator) {
|
|
report(node, "asyncGenerators")
|
|
}
|
|
},
|
|
|
|
MetaProperty(node) {
|
|
const meta = node.meta.name || node.meta
|
|
const property = node.property.name || node.property
|
|
if (meta === "new" && property === "target") {
|
|
report(node, "new.target")
|
|
}
|
|
},
|
|
|
|
ClassDeclaration(node) {
|
|
report(node, "classes")
|
|
|
|
if (extendsNull(node)) {
|
|
report(node, "extendsNull")
|
|
}
|
|
},
|
|
|
|
ClassExpression(node) {
|
|
report(node, "classes")
|
|
|
|
if (extendsNull(node)) {
|
|
report(node, "extendsNull")
|
|
}
|
|
},
|
|
|
|
ForOfStatement(node) {
|
|
report(node, "forOf")
|
|
if (node.await) {
|
|
report(node, "forAwaitOf")
|
|
}
|
|
},
|
|
|
|
VariableDeclaration(node) {
|
|
if (node.kind === "const") {
|
|
report(node, "const")
|
|
} else if (node.kind === "let") {
|
|
report(node, "let")
|
|
}
|
|
},
|
|
|
|
ArrayPattern(node) {
|
|
if (DESTRUCTURING_PARENT_TYPE.test(node.parent.type)) {
|
|
report(node, "destructuring")
|
|
}
|
|
},
|
|
|
|
AssignmentExpression(node) {
|
|
if (node.operator === "**=") {
|
|
report(node, "exponentialOperators")
|
|
}
|
|
},
|
|
|
|
AwaitExpression(node) {
|
|
report(node, "asyncAwait")
|
|
},
|
|
|
|
BinaryExpression(node) {
|
|
if (node.operator === "**") {
|
|
report(node, "exponentialOperators")
|
|
}
|
|
},
|
|
|
|
CallExpression(node) {
|
|
if (hasTrailingCommaForCall(node)) {
|
|
report(node, "trailingCommasInFunctions")
|
|
}
|
|
},
|
|
|
|
Identifier(node) {
|
|
const raw = sourceCode.getText(node)
|
|
if (hasUnicodeCodePointEscape(raw)) {
|
|
report(node, "unicodeCodePointEscapes")
|
|
}
|
|
},
|
|
|
|
Literal(node) {
|
|
if (typeof node.value === "number") {
|
|
if (BINARY_NUMBER.test(node.raw)) {
|
|
report(node, "binaryNumberLiterals")
|
|
} else if (OCTAL_NUMBER.test(node.raw)) {
|
|
report(node, "octalNumberLiterals")
|
|
}
|
|
} else if (typeof node.value === "string") {
|
|
if (hasUnicodeCodePointEscape(node.raw)) {
|
|
report(node, "unicodeCodePointEscapes")
|
|
}
|
|
} else if (node.regex) {
|
|
validateRegExpLiteral(node)
|
|
}
|
|
},
|
|
|
|
NewExpression(node) {
|
|
if (
|
|
node.callee.type === "Identifier" &&
|
|
node.callee.name === "RegExp"
|
|
) {
|
|
validateRegExpString(node)
|
|
}
|
|
if (hasTrailingCommaForCall(node)) {
|
|
report(node, "trailingCommasInFunctions")
|
|
}
|
|
},
|
|
|
|
ObjectPattern(node) {
|
|
if (DESTRUCTURING_PARENT_TYPE.test(node.parent.type)) {
|
|
report(node, "destructuring")
|
|
}
|
|
},
|
|
|
|
Property(node) {
|
|
if (
|
|
node.parent.type === "ObjectExpression" &&
|
|
(node.computed || node.shorthand || node.method)
|
|
) {
|
|
if (node.shorthand && GET_OR_SET.test(node.key.name)) {
|
|
report(node, "objectPropertyShorthandOfGetSet")
|
|
} else {
|
|
report(node, "objectLiteralExtensions")
|
|
}
|
|
}
|
|
},
|
|
|
|
RestElement(node) {
|
|
if (FUNC_TYPE.test(node.parent.type)) {
|
|
report(node, "restParameters")
|
|
} else if (node.parent.type === "ObjectPattern") {
|
|
report(node, "restProperties")
|
|
}
|
|
},
|
|
|
|
SpreadElement(node) {
|
|
if (node.parent.type === "ObjectExpression") {
|
|
report(node, "spreadProperties")
|
|
} else {
|
|
report(node, "spreadOperators")
|
|
}
|
|
},
|
|
|
|
TemplateElement(node) {
|
|
if (node.value.cooked == null) {
|
|
report(node, "templateLiteralRevision")
|
|
}
|
|
},
|
|
|
|
TemplateLiteral(node) {
|
|
report(node, "templateStrings")
|
|
},
|
|
|
|
ExperimentalRestProperty(node) {
|
|
report(node, "restProperties")
|
|
},
|
|
|
|
ExperimentalSpreadProperty(node) {
|
|
report(node, "spreadProperties")
|
|
},
|
|
|
|
RestProperty(node) {
|
|
report(node, "restProperties")
|
|
},
|
|
|
|
SpreadProperty(node) {
|
|
report(node, "spreadProperties")
|
|
},
|
|
|
|
ExportAllDeclaration(node) {
|
|
report(node, "modules")
|
|
},
|
|
|
|
ExportDefaultDeclaration(node) {
|
|
report(node, "modules")
|
|
},
|
|
|
|
ExportNamedDeclaration(node) {
|
|
report(node, "modules")
|
|
},
|
|
|
|
ImportDeclaration(node) {
|
|
report(node, "modules")
|
|
},
|
|
}
|
|
},
|
|
}
|