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JavaScriptEnvironment.swift
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JavaScriptEnvironment.swift
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// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
public class JavaScriptEnvironment: ComponentBase, Environment {
// Possible return values of the 'typeof' operator.
public static let jsTypeNames = ["undefined", "boolean", "number", "string", "symbol", "function", "object", "bigint"]
// Integer values that are more likely to trigger edge-cases.
public static let InterestingIntegers: [Int64] = [
-9223372036854775808, -9223372036854775807, // Int64 min, mostly for BigInts
-9007199254740992, -9007199254740991, -9007199254740990, // Smallest integer value that is still precisely representable by a double
-4294967297, -4294967296, -4294967295, // Negative Uint32 max
-2147483649, -2147483648, -2147483647, // Int32 min
-1073741824, -536870912, -268435456, // -2**32 / {4, 8, 16}
-65537, -65536, -65535, // -2**16
-4096, -1024, -256, -128, // Other powers of two
-2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 16, 64, // Numbers around 0
127, 128, 129, // 2**7
255, 256, 257, // 2**8
512, 1000, 1024, 4096, 10000, // Misc numbers
65535, 65536, 65537, // 2**16
268435439, 268435440, 268435441, // V8 String kMaxLength (32-bit)
536870887, 536870888, 536870889, // V8 String kMaxLength (64-bit)
268435456, 536870912, 1073741824, // 2**32 / {4, 8, 16}
1073741823, 1073741824, 1073741825, // 2**30
2147483647, 2147483648, 2147483649, // Int32 max
4294967295, 4294967296, 4294967297, // Uint32 max
9007199254740990, 9007199254740991, 9007199254740992, // Biggest integer value that is still precisely representable by a double
9223372036854775807, // Int64 max, mostly for BigInts
]
static let wellKnownSymbols = ["iterator", "asyncIterator", "match", "matchAll", "replace", "search", "split", "hasInstance", "isConcatSpreadable", "unscopables", "species", "toPrimitive", "toStringTag", "dispose", "asyncDispose"]
public let interestingIntegers = InterestingIntegers
// Double values that are more likely to trigger edge-cases.
public let interestingFloats = [-Double.infinity, -Double.greatestFiniteMagnitude, -1e-15, -1e12, -1e9, -1e6, -1e3, -5.0, -4.0, -3.0, -2.0, -1.0, -Double.ulpOfOne, -Double.leastNormalMagnitude, -0.0, 0.0, Double.leastNormalMagnitude, Double.ulpOfOne, 1.0, 2.0, 3.0, 4.0, 5.0, 1e3, 1e6, 1e9, 1e12, 1e-15, Double.greatestFiniteMagnitude, Double.infinity, Double.nan]
// TODO more?
public let interestingStrings = jsTypeNames
// Copied from
// https://cs.chromium.org/chromium/src/testing/libfuzzer/fuzzers/dicts/regexp.dict
public let interestingRegExps = [
// These do *not* work with unicode or unicodeSets
(pattern: #"a\q"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"{12,3b"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"a{z}"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[z-\d]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"{z}"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"{"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"(x)(x)(x)(x)(x)(x)(x)(x)(x)(x)\11"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[\111]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\c!"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[\11a]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[\c!]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[\c~]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\[\]\{\}\(\)\%\^\#\ "#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[\[\]\{\}\(\)\%\^\#\ ]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\118"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[\00011]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\c~"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"{,}"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[-123]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[-\xf0\x9f\x92\xa9]+"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"a{,}"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"{12,"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"(?!a)?a"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\111"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"(?!a)?a\1"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[\1111]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"a{12,3b"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[\c1]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"(?=a){0,10}a"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\q"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"a{12z}"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\011"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[\d-z]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[\011]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\8"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\11a"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[\118]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\1112"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"a{12,"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[\d-\d]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\11"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"(x)(x)(x)\4*"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"(?:(?=a))a\1"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"a{}"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\c_"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"a{"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"(x)(x)(x)\4"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\c"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\x3z"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[\c_]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"{1z}"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"(?=a){1,10}a"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\1111"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\u003z"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[\11]"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"\9"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"}"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"{}"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"(?=a){9,10}a"#, incompatibleFlags: .unicode | .unicodeSets),
(pattern: #"[a-b-c]"#, incompatibleFlags: .unicode | .unicodeSets),
// These work with all flags
(pattern: #"(x)(x)(x)\1*"#, incompatibleFlags: .empty),
(pattern: #"\x01"#, incompatibleFlags: .empty),
(pattern: #"(?: foo )"#, incompatibleFlags: .empty),
(pattern: #"(ab|cde)"#, incompatibleFlags: .empty),
(pattern: #"foo|(bar|baz)|quux"#, incompatibleFlags: .empty),
(pattern: #"(?:a*)*"#, incompatibleFlags: .empty),
(pattern: #"a{0,1}?"#, incompatibleFlags: .empty),
(pattern: #"(?:a+)?"#, incompatibleFlags: .empty),
(pattern: #"a$"#, incompatibleFlags: .empty),
(pattern: #"a(?=b)"#, incompatibleFlags: .empty),
(pattern: #"foo[z]*"#, incompatibleFlags: .empty),
(pattern: #"\u{12345}\u{23456}"#, incompatibleFlags: .empty),
(pattern: #"(?!(a))\1"#, incompatibleFlags: .empty),
(pattern: #"abc+?"#, incompatibleFlags: .empty),
(pattern: #"a*b"#, incompatibleFlags: .empty),
(pattern: #"(?:a?)*"#, incompatibleFlags: .empty),
(pattern: #"\xf0\x9f\x92\xa9"#, incompatibleFlags: .empty),
(pattern: #"a{1,2}?"#, incompatibleFlags: .empty),
(pattern: #"a\n"#, incompatibleFlags: .empty),
(pattern: #"\P{Decimal_Number}"#, incompatibleFlags: .empty),
(pattern: #"(?=)"#, incompatibleFlags: .empty),
(pattern: #"\1(a)"#, incompatibleFlags: .empty),
(pattern: #"."#, incompatibleFlags: .empty),
(pattern: #"()"#, incompatibleFlags: .empty),
(pattern: #"(a)"#, incompatibleFlags: .empty),
(pattern: #"(?:a{5,1000000}){3,1000000}"#, incompatibleFlags: .empty),
(pattern: #"a\Sc"#, incompatibleFlags: .empty),
(pattern: #"a(?=b)c"#, incompatibleFlags: .empty),
(pattern: #"a{0}"#, incompatibleFlags: .empty),
(pattern: #"(?:a*)+"#, incompatibleFlags: .empty),
(pattern: #"\ud808\udf45*"#, incompatibleFlags: .empty),
(pattern: #"a\w"#, incompatibleFlags: .empty),
(pattern: #"(?:a+)*"#, incompatibleFlags: .empty),
(pattern: #"a(?:b)"#, incompatibleFlags: .empty),
(pattern: #"(?<=a)"#, incompatibleFlags: .empty),
(pattern: #"(x)(x)(x)\3"#, incompatibleFlags: .empty),
(pattern: #"foo(?<=bar)baz"#, incompatibleFlags: .empty),
(pattern: #"\xe2\x81\xa3"#, incompatibleFlags: .empty),
(pattern: #"ab\b\d\bcd"#, incompatibleFlags: .empty),
(pattern: #"[\ca]"#, incompatibleFlags: .empty),
(pattern: #"[\xf0\x9f\x92\xa9-\xf4\x8f\xbf\xbf]"#, incompatibleFlags: .empty),
(pattern: #"\p{Script_Extensions=Greek}"#, incompatibleFlags: .empty),
(pattern: #"\cj\cJ\ci\cI\ck\cK"#, incompatibleFlags: .empty),
(pattern: #"a\fb\nc\rd\te\vf"#, incompatibleFlags: .empty),
(pattern: #"\p{General_Category=Decimal_Number}"#, incompatibleFlags: .empty),
(pattern: #"\u{12345}"#, incompatibleFlags: .empty),
(pattern: #"a\b!"#, incompatibleFlags: .empty),
(pattern: #"a[^a]"#, incompatibleFlags: .empty),
(pattern: #"\1\2(a(?:\1(b\1\2))\2)\1"#, incompatibleFlags: .empty),
(pattern: #"(?:ab)+"#, incompatibleFlags: .empty),
(pattern: #"[^123]"#, incompatibleFlags: .empty),
(pattern: #"a(?!b)"#, incompatibleFlags: .empty),
(pattern: #"a\Bb"#, incompatibleFlags: .empty),
(pattern: #"(?:ab)?"#, incompatibleFlags: .empty),
(pattern: #"(?<a>)"#, incompatibleFlags: .empty),
(pattern: #"(?<!)"#, incompatibleFlags: .empty),
(pattern: #"a."#, incompatibleFlags: .empty),
(pattern: #"[]"#, incompatibleFlags: .empty),
(pattern: #"a\S"#, incompatibleFlags: .empty),
(pattern: #"abc"#, incompatibleFlags: .empty),
(pattern: #"(?<!a)"#, incompatibleFlags: .empty),
(pattern: #"\x60"#, incompatibleFlags: .empty),
(pattern: #"[\p{Script_Extensions=Mongolian}&&\p{Number}]"#, incompatibleFlags: .empty),
(pattern: #"a\nb\bc"#, incompatibleFlags: .empty),
(pattern: #"(?:ab)|cde"#, incompatibleFlags: .empty),
(pattern: #"^"#, incompatibleFlags: .empty),
(pattern: #"a\W"#, incompatibleFlags: .empty),
(pattern: #"a"#, incompatibleFlags: .empty),
(pattern: #"a[a]"#, incompatibleFlags: .empty),
(pattern: #"(x)(x)(x)\1"#, incompatibleFlags: .empty),
(pattern: #"[\cA]"#, incompatibleFlags: .empty),
(pattern: #"(ab)\1"#, incompatibleFlags: .empty),
(pattern: #"a(?=bbb|bb)c"#, incompatibleFlags: .empty),
(pattern: #"(x)(x)(x)(x)(x)(x)(x)(x)(x)(x)\10"#, incompatibleFlags: .empty),
(pattern: #"\P{sc=Greek}"#, incompatibleFlags: .empty),
(pattern: #"foo(?!bar)baz"#, incompatibleFlags: .empty),
(pattern: #"xyz??"#, incompatibleFlags: .empty),
(pattern: #"a[bc]d"#, incompatibleFlags: .empty),
(pattern: #"a*?"#, incompatibleFlags: .empty),
(pattern: #"((\xed\xa0\x80))\x02"#, incompatibleFlags: .empty),
(pattern: #"a+"#, incompatibleFlags: .empty),
(pattern: #"\P{scx=Greek}"#, incompatibleFlags: .empty),
(pattern: #"(?<=)"#, incompatibleFlags: .empty),
(pattern: #"(?:foo)"#, incompatibleFlags: .empty),
(pattern: #"xyz{1,}?"#, incompatibleFlags: .empty),
(pattern: #"(a)\1"#, incompatibleFlags: .empty),
(pattern: #"a[a-z]"#, incompatibleFlags: .empty),
(pattern: #"\p{Nd}"#, incompatibleFlags: .empty),
(pattern: #"(?:ab)"#, incompatibleFlags: .empty),
(pattern: #"a+b|c"#, incompatibleFlags: .empty),
(pattern: #"(ab|cde)\1"#, incompatibleFlags: .empty),
(pattern: #"(\xed\xb0\x80)\x01"#, incompatibleFlags: .empty),
(pattern: #"((((.).).).)"#, incompatibleFlags: .empty),
(pattern: #"(?:a?)+"#, incompatibleFlags: .empty),
(pattern: #"(a\1)"#, incompatibleFlags: .empty),
(pattern: #"\P{Any}"#, incompatibleFlags: .empty),
(pattern: #"xyz{93}"#, incompatibleFlags: .empty),
(pattern: #"\x0f"#, incompatibleFlags: .empty),
(pattern: #"(ab)"#, incompatibleFlags: .empty),
(pattern: #"\w|\d"#, incompatibleFlags: .empty),
(pattern: #"xyz{1,32}"#, incompatibleFlags: .empty),
(pattern: #"[x\dz]"#, incompatibleFlags: .empty),
(pattern: #"\xed\xa0\x80"#, incompatibleFlags: .empty),
(pattern: #"xyz{1,}"#, incompatibleFlags: .empty),
(pattern: #"\p{gc=Nd}"#, incompatibleFlags: .empty),
(pattern: #"\xed\xb0\x80"#, incompatibleFlags: .empty),
(pattern: #"[\0]"#, incompatibleFlags: .empty),
(pattern: #"^xxx$"#, incompatibleFlags: .empty),
(pattern: #"a?"#, incompatibleFlags: .empty),
(pattern: #"a\s"#, incompatibleFlags: .empty),
(pattern: #"a+?"#, incompatibleFlags: .empty),
(pattern: #"xyz{0,1}?"#, incompatibleFlags: .empty),
(pattern: #"(\1a)"#, incompatibleFlags: .empty),
(pattern: #"a(?!bbb|bb)c"#, incompatibleFlags: .empty),
(pattern: #"\p{Script=Greek}"#, incompatibleFlags: .empty),
(pattern: #"\u0060"#, incompatibleFlags: .empty),
(pattern: #"[xyz]"#, incompatibleFlags: .empty),
(pattern: #"(?:a+){0,0}"#, incompatibleFlags: .empty),
(pattern: #"(\2)(\1)"#, incompatibleFlags: .empty),
(pattern: #"xyz{1,32}?"#, incompatibleFlags: .empty),
(pattern: #"(?<a>.)"#, incompatibleFlags: .empty),
(pattern: #"[\cz]"#, incompatibleFlags: .empty),
(pattern: #"(x)(x)(x)\3*"#, incompatibleFlags: .empty),
(pattern: #"foo(?<!bar)baz"#, incompatibleFlags: .empty),
(pattern: #"abc+"#, incompatibleFlags: .empty),
(pattern: #"foo(?=bar)baz"#, incompatibleFlags: .empty),
(pattern: #"a|bc"#, incompatibleFlags: .empty),
(pattern: #"abc|def"#, incompatibleFlags: .empty),
(pattern: #"a*b|c"#, incompatibleFlags: .empty),
(pattern: #"(x)(x)(x)\2"#, incompatibleFlags: .empty),
(pattern: #"(?<a>.)\k<a>"#, incompatibleFlags: .empty),
(pattern: #"(?:a+)+"#, incompatibleFlags: .empty),
(pattern: #"(?=.)"#, incompatibleFlags: .empty),
(pattern: #"\p{Changes_When_NFKC_Casefolded}"#, incompatibleFlags: .empty),
(pattern: #"a\sc"#, incompatibleFlags: .empty),
(pattern: #"a||bc"#, incompatibleFlags: .empty),
(pattern: #"a+b"#, incompatibleFlags: .empty),
(pattern: #"[\cZ]"#, incompatibleFlags: .empty),
(pattern: #"a|b"#, incompatibleFlags: .empty),
(pattern: #"\u0034"#, incompatibleFlags: .empty),
(pattern: #"\cA"#, incompatibleFlags: .empty),
(pattern: #"ab|c"#, incompatibleFlags: .empty),
(pattern: #"abc|def|ghi"#, incompatibleFlags: .empty),
(pattern: #"(?:ab|cde)"#, incompatibleFlags: .empty),
(pattern: #"xyz?"#, incompatibleFlags: .empty),
(pattern: #"[a-zA-Z0-9]"#, incompatibleFlags: .empty),
(pattern: #"(?:a?)?"#, incompatibleFlags: .empty),
(pattern: #"xyz{0,1}"#, incompatibleFlags: .empty),
(pattern: #"a\D"#, incompatibleFlags: .empty),
(pattern: #"(?!\1(a\1)\1)\1"#, incompatibleFlags: .empty),
(pattern: #"a\bc"#, incompatibleFlags: .empty),
(pattern: #"\P{gc=Decimal_Number}"#, incompatibleFlags: .empty),
(pattern: #"\b"#, incompatibleFlags: .empty),
(pattern: #"[x]"#, incompatibleFlags: .empty),
(pattern: #"(?:ab){4,7}"#, incompatibleFlags: .empty),
(pattern: #"a??"#, incompatibleFlags: .empty),
(pattern: #"(?<a>(?<b>(?<c>(?<d>.).).).)"#, incompatibleFlags: .empty),
(pattern: #"[\xe2\x81\xa3]"#, incompatibleFlags: .empty),
]
public let interestingRegExpQuantifiers = ["*", "+", "?"]
public let intType = ILType.integer
public let bigIntType = ILType.bigint
public let floatType = ILType.float
public let booleanType = ILType.boolean
public let regExpType = ILType.jsRegExp
public let stringType = ILType.jsString
public let emptyObjectType = ILType.object()
public let arrayType = ILType.jsArray
public let argumentsType = ILType.jsArguments
public let generatorType = ILType.jsGenerator
public let promiseType = ILType.jsPromise
/// Identifiers that should be used for custom properties and methods.
public static let CustomPropertyNames = ["a", "b", "c", "d", "e", "f", "g", "h"]
public static let CustomMethodNames = ["m", "n", "o", "p", "valueOf", "toString"]
public private(set) var builtins = Set<String>()
public let customProperties = Set<String>(CustomPropertyNames)
public let customMethods = Set<String>(CustomMethodNames)
public private(set) var builtinProperties = Set<String>()
public private(set) var builtinMethods = Set<String>()
private var builtinTypes: [String: ILType] = [:]
private var groups: [String: ObjectGroup] = [:]
public init(additionalBuiltins: [String: ILType] = [:], additionalObjectGroups: [ObjectGroup] = []) {
super.init(name: "JavaScriptEnvironment")
// Build model of the JavaScript environment
// Register all object groups that we use to model the JavaScript runtime environment.
// The object groups allow us to associate type information for properties and methods
// with groups of related objects, e.g. strings, arrays, etc.
// It generally doesn't hurt to leave all of these enabled. If specific APIs should be disabled,
// it is best to either just disable the builtin that exposes it (e.g. Map constructor) or
// selectively disable methods/properties by commenting out parts of the ObjectGroup and
// Type definitions at the end of this file.
registerObjectGroup(.jsStrings)
registerObjectGroup(.jsArrays)
registerObjectGroup(.jsArguments)
registerObjectGroup(.jsGenerators)
registerObjectGroup(.jsPromises)
registerObjectGroup(.jsRegExps)
registerObjectGroup(.jsFunctions)
registerObjectGroup(.jsSymbols)
registerObjectGroup(.jsMaps)
registerObjectGroup(.jsWeakMaps)
registerObjectGroup(.jsSets)
registerObjectGroup(.jsWeakSets)
registerObjectGroup(.jsWeakRefs)
registerObjectGroup(.jsFinalizationRegistrys)
registerObjectGroup(.jsArrayBuffers)
registerObjectGroup(.jsSharedArrayBuffers)
for variant in ["Uint8Array", "Int8Array", "Uint16Array", "Int16Array", "Uint32Array", "Int32Array", "Float32Array", "Float64Array", "Uint8ClampedArray", "BigInt64Array", "BigUint64Array"] {
registerObjectGroup(.jsTypedArrays(variant))
}
registerObjectGroup(.jsDataViews)
registerObjectGroup(.jsObjectConstructor)
registerObjectGroup(.jsPromiseConstructor)
registerObjectGroup(.jsArrayConstructor)
registerObjectGroup(.jsStringConstructor)
registerObjectGroup(.jsSymbolConstructor)
registerObjectGroup(.jsBigIntConstructor)
registerObjectGroup(.jsBooleanConstructor)
registerObjectGroup(.jsNumberConstructor)
registerObjectGroup(.jsMathObject)
registerObjectGroup(.jsDate)
registerObjectGroup(.jsDateConstructor)
registerObjectGroup(.jsJSONObject)
registerObjectGroup(.jsReflectObject)
registerObjectGroup(.jsArrayBufferConstructor)
registerObjectGroup(.jsSharedArrayBufferConstructor)
for variant in ["Error", "EvalError", "RangeError", "ReferenceError", "SyntaxError", "TypeError", "AggregateError", "URIError", "SuppressedError"] {
registerObjectGroup(.jsError(variant))
}
for group in additionalObjectGroups {
registerObjectGroup(group)
}
// Register builtins that should be available for fuzzing.
// Here it is easy to selectively disable/enable some APIs for fuzzing by
// just commenting out the corresponding lines.
registerBuiltin("Object", ofType: .jsObjectConstructor)
registerBuiltin("Array", ofType: .jsArrayConstructor)
registerBuiltin("Function", ofType: .jsFunctionConstructor)
registerBuiltin("String", ofType: .jsStringConstructor)
registerBuiltin("Boolean", ofType: .jsBooleanConstructor)
registerBuiltin("Number", ofType: .jsNumberConstructor)
registerBuiltin("Symbol", ofType: .jsSymbolConstructor)
registerBuiltin("BigInt", ofType: .jsBigIntConstructor)
registerBuiltin("RegExp", ofType: .jsRegExpConstructor)
for variant in ["Error", "EvalError", "RangeError", "ReferenceError", "SyntaxError", "TypeError", "AggregateError", "URIError", "SuppressedError"] {
registerBuiltin(variant, ofType: .jsErrorConstructor(variant))
}
registerBuiltin("ArrayBuffer", ofType: .jsArrayBufferConstructor)
registerBuiltin("SharedArrayBuffer", ofType: .jsSharedArrayBufferConstructor)
for variant in ["Uint8Array", "Int8Array", "Uint16Array", "Int16Array", "Uint32Array", "Int32Array", "Float32Array", "Float64Array", "Uint8ClampedArray", "BigInt64Array", "BigUint64Array"] {
registerBuiltin(variant, ofType: .jsTypedArrayConstructor(variant))
}
registerBuiltin("DataView", ofType: .jsDataViewConstructor)
registerBuiltin("Date", ofType: .jsDateConstructor)
registerBuiltin("Promise", ofType: .jsPromiseConstructor)
registerBuiltin("Proxy", ofType: .jsProxyConstructor)
registerBuiltin("Map", ofType: .jsMapConstructor)
registerBuiltin("WeakMap", ofType: .jsWeakMapConstructor)
registerBuiltin("Set", ofType: .jsSetConstructor)
registerBuiltin("WeakSet", ofType: .jsWeakSetConstructor)
registerBuiltin("WeakRef", ofType: .jsWeakRefConstructor)
registerBuiltin("FinalizationRegistry", ofType: .jsFinalizationRegistryConstructor)
registerBuiltin("Math", ofType: .jsMathObject)
registerBuiltin("JSON", ofType: .jsJSONObject)
registerBuiltin("Reflect", ofType: .jsReflectObject)
registerBuiltin("isNaN", ofType: .jsIsNaNFunction)
registerBuiltin("isFinite", ofType: .jsIsFiniteFunction)
//registerBuiltin("escape:", ofType: .jsEscapeFunction)
//registerBuiltin("unescape:", ofType: .jsUnescapeFunction)
//registerBuiltin("decodeURI:", ofType: .jsDecodeURIFunction)
//registerBuiltin("decodeURIComponent:", ofType: .jsDecodeURIComponentFunction)
//registerBuiltin("encodeURI:", ofType: .jsEncodeURIFunction)
//registerBuiltin("encodeURIComponent:", ofType: .jsEncodeURIComponentFunction)
registerBuiltin("eval", ofType: .jsEvalFunction)
registerBuiltin("parseInt", ofType: .jsParseIntFunction)
registerBuiltin("parseFloat", ofType: .jsParseFloatFunction)
registerBuiltin("undefined", ofType: .jsUndefined)
registerBuiltin("NaN", ofType: .jsNaN)
registerBuiltin("Infinity", ofType: .jsInfinity)
for (builtin, type) in additionalBuiltins {
registerBuiltin(builtin, ofType: type)
}
// Add some well-known builtin properties and methods.
builtinProperties.insert("__proto__")
builtinProperties.insert("constructor")
builtinMethods.insert("valueOf")
builtinMethods.insert("toString")
}
override func initialize() {
// Ensure that some of the common property/method names exist.
assert(builtinProperties.contains("__proto__"))
assert(builtinProperties.contains("constructor"))
assert(builtinMethods.contains("valueOf"))
assert(builtinMethods.contains("toString"))
checkConstructorAvailability()
// Log detailed information about the environment here so users are aware of it and can modify things if they like.
logger.info("Initialized static JS environment model")
logger.info("Have \(builtins.count) available builtins: \(builtins)")
logger.info("Have \(groups.count) different object groups: \(groups.keys)")
logger.info("Have \(builtinProperties.count) builtin property names: \(builtinProperties)")
logger.info("Have \(builtinMethods.count) builtin method names: \(builtinMethods)")
logger.info("Have \(customProperties.count) custom property names: \(customProperties)")
logger.info("Have \(customMethods.count) custom method names: \(customMethods)")
}
func checkConstructorAvailability() {
logger.info("Checking constructor availability...")
// These constructors return types that are well-known instead of .object types.
let knownExceptions = [
"Boolean", // returns .boolean
"Number", // returns .number
"Object", // returns plain .object
"Proxy", // returns .anything
]
for builtin in builtins where type(ofBuiltin: builtin).Is(.constructor()) {
if knownExceptions.contains(builtin) { continue }
if !hasGroup(builtin) { logger.warning("Missing group info for constructable \(builtin)")}
if type(ofBuiltin: builtin).signature == nil {
logger.warning("Missing signature for builtin \(builtin)")
} else {
if !type(ofBuiltin: builtin).signature!.outputType.Is(.object(ofGroup: builtin)) {
logger.warning("Signature for builtin \(builtin) is mismatching")
}
}
}
logger.info("Done checking constructor availability...")
}
public func hasBuiltin(_ name: String) -> Bool {
return self.builtinTypes.keys.contains(name)
}
public func hasGroup(_ name: String) -> Bool {
return self.groups.keys.contains(name)
}
public func registerObjectGroup(_ group: ObjectGroup) {
assert(groups[group.name] == nil)
groups[group.name] = group
builtinProperties.formUnion(group.properties.keys)
builtinMethods.formUnion(group.methods.keys)
}
public func registerBuiltin(_ name: String, ofType type: ILType) {
assert(builtinTypes[name] == nil)
builtinTypes[name] = type
builtins.insert(name)
}
public func type(ofBuiltin builtinName: String) -> ILType {
if let type = builtinTypes[builtinName] {
return type
} else {
logger.warning("Missing type for builtin \(builtinName)")
return .anything
}
}
public func type(ofProperty propertyName: String, on baseType: ILType) -> ILType {
if let groupName = baseType.group {
if let group = groups[groupName] {
if let type = group.properties[propertyName] {
return type
}
} else {
// This shouldn't happen, probably forgot to register the object group
logger.warning("No type information for object group \(groupName) available")
}
}
return .anything
}
public func signature(ofMethod methodName: String, on baseType: ILType) -> Signature {
if let groupName = baseType.group {
if let group = groups[groupName] {
if let type = group.methods[methodName] {
return type
}
} else {
// This shouldn't happen, probably forgot to register the object group
logger.warning("No type information for object group \(groupName) available")
}
}
return Signature.forUnknownFunction
}
}
/// A struct to encapsulate property and method type information for a group of related objects.
public struct ObjectGroup {
public let name: String
public let properties: [String: ILType]
public let methods: [String: Signature]
/// The type of instances of this group.
public let instanceType: ILType
public init(name: String, instanceType: ILType, properties: [String: ILType], methods: [String: Signature]) {
self.name = name
self.instanceType = instanceType
self.properties = properties
self.methods = methods
// We could also only assert set inclusion here to implement "shared" properties/methods.
// (which would then need some kind of fallback ObjectGroup that is consulted by the
// type lookup routines if the real group doesn't have the requested information).
assert(instanceType.group == name, "group name mismatch for group \(name)")
assert(instanceType.properties == Set(properties.keys), "inconsistent property information for object group \(name): \(Set(properties.keys).symmetricDifference(instanceType.properties))")
assert(instanceType.methods == Set(methods.keys), "inconsistent method information for object group \(name): \(Set(methods.keys).symmetricDifference(instanceType.methods))")
}
}
// Types of builtin objects, functions, and values.
//
// Most objects have a number of common fields, such as .constructor or the various methods defined on the object prototype.
// We do not model these here since it's usually relatively uninteresting to use these always-existing fields. __proto__ is the exception,
// and so for that we have special code generators that load or modify an object's prototype. Additionally, mutators like the
// ExplorationMutator will make use of __proto__ and other common fields.
//
// As such, one rule of thumb here is that each object type should only contain the properties and methods that are specific to this type
// and not shared with other, unrelated objects.
// Another rule of thumb is that the type information should either be complete or missing entirely. I.e. it is better to have a field be .anything
// or .anythingObject instead of only specifying a subset of its properties for example. Partial type information is usually bad as
// only the available parts will be used by e.g. CodeGenerators while for example the ExplorationMutator will believe that type information is
// complete and so it does not need to explore this value.
//
// Note, these must be kept in sync with the ObjectGroups below (in particular the properties and methods). To help with that, the ObjectGroup
// constructor asserts that the type information is consistent between instance type and the ObjectGroup.
public extension ILType {
/// Type of a string in JavaScript.
/// A JS string is both a string and an object on which methods can be called.
static let jsString = ILType.string + ILType.iterable + ILType.object(ofGroup: "String", withProperties: ["length"], withMethods: ["charAt", "charCodeAt", "codePointAt", "concat", "includes", "endsWith", "indexOf", "lastIndexOf", "match", "matchAll", "padEnd", "padStart", "normalize", "repeat", "replace", "replaceAll", "search", "slice", "split", "startsWith", "substring", "trim", "trimStart", "trimLeft", "trimEnd", "trimRight" ,"toUpperCase", "toLowerCase", "localeCompare"])
/// Type of a regular expression in JavaScript.
/// A JS RegExp is both a RegExp and an object on which methods can be called.
static let jsRegExp = ILType.regexp + ILType.object(ofGroup: "RegExp", withProperties: ["flags", "dotAll", "global", "ignoreCase", "multiline", "source", "sticky", "unicode"], withMethods: ["compile", "exec", "test"])
/// Type of a JavaScript Symbol.
static let jsSymbol = ILType.object(ofGroup: "Symbol", withProperties: ["description"])
/// Type of a JavaScript array.
static let jsArray = ILType.iterable + ILType.object(ofGroup: "Array", withProperties: ["length"], withMethods: ["at", "concat", "copyWithin", "fill", "find", "findIndex", "findLast", "findLastIndex", "pop", "push", "reverse", "shift", "unshift", "slice", "sort", "splice", "includes", "indexOf", "keys", "entries", "forEach", "filter", "map", "every", "some", "reduce", "reduceRight", "toString", "toLocaleString", "toReversed", "toSorted", "toSpliced", "with", "join", "lastIndexOf", "values", "flat", "flatMap"])
/// Type of a function's arguments object.
static let jsArguments = ILType.iterable + ILType.object(ofGroup: "Arguments", withProperties: ["length", "callee"])
/// Type of a JavaScript generator object.
static let jsGenerator = ILType.iterable + ILType.object(ofGroup: "Generator", withMethods: ["next", "return", "throw"])
/// Type of a JavaScript Promise object.
static let jsPromise = ILType.object(ofGroup: "Promise", withMethods: ["catch", "finally", "then"])
/// Type of a JavaScript Map object.
static let jsMap = ILType.iterable + ILType.object(ofGroup: "Map", withProperties: ["size"], withMethods: ["clear", "delete", "entries", "forEach", "get", "has", "keys", "set", "values"])
/// Type of a JavaScript WeakMap object.
static let jsWeakMap = ILType.object(ofGroup: "WeakMap", withMethods: ["delete", "get", "has", "set"])
/// Type of a JavaScript Set object.
static let jsSet = ILType.iterable + ILType.object(ofGroup: "Set", withProperties: ["size"], withMethods: ["add", "clear", "delete", "entries", "forEach", "has", "keys", "values"])
/// Type of a JavaScript WeakSet object.
static let jsWeakSet = ILType.object(ofGroup: "WeakSet", withMethods: ["add", "delete", "has"])
/// Type of a JavaScript WeakRef object.
static let jsWeakRef = ILType.object(ofGroup: "WeakRef", withMethods: ["deref"])
/// Type of a JavaScript FinalizationRegistry object.
static let jsFinalizationRegistry = ILType.object(ofGroup: "FinalizationRegistry", withMethods: ["register", "unregister"])
/// Type of a JavaScript ArrayBuffer object.
static let jsArrayBuffer = ILType.object(ofGroup: "ArrayBuffer", withProperties: ["byteLength", "maxByteLength", "resizable"], withMethods: ["resize", "slice", "transfer"])
/// Type of a JavaScript SharedArrayBuffer object.
static let jsSharedArrayBuffer = ILType.object(ofGroup: "SharedArrayBuffer", withProperties: ["byteLength", "maxByteLength", "growable"], withMethods: ["grow", "slice"])
/// Type of a JavaScript DataView object.
static let jsDataView = ILType.object(ofGroup: "DataView", withProperties: ["buffer", "byteLength", "byteOffset"], withMethods: ["getInt8", "getUint8", "getInt16", "getUint16", "getInt32", "getUint32", "getFloat32", "getFloat64", "getBigInt64", "setInt8", "setUint8", "setInt16", "setUint16", "setInt32", "setUint32", "setFloat32", "setFloat64", "setBigInt64"])
/// Type of a JavaScript TypedArray object of the given variant.
static func jsTypedArray(_ variant: String) -> ILType {
return .iterable + .object(ofGroup: variant, withProperties: ["buffer", "byteOffset", "byteLength", "length"], withMethods: ["at", "copyWithin", "fill", "find", "findIndex", "findLast", "findLastIndex", "reverse", "slice", "sort", "includes", "indexOf", "keys", "entries", "forEach", "filter", "map", "every", "set", "some", "subarray", "reduce", "reduceRight", "join", "lastIndexOf", "values", "toLocaleString", "toString", "toReversed", "toSorted", "with"])
}
/// Type of a JavaScript function.
/// A JavaScript function is also constructors. Moreover, it is also an object as it has a number of properties and methods.
static func jsFunction(_ signature: Signature = Signature.forUnknownFunction) -> ILType {
return .constructor(signature) + .function(signature) + .object(ofGroup: "Function", withProperties: ["prototype", "length", "arguments", "caller", "name"], withMethods: ["apply", "bind", "call"])
}
/// Type of the JavaScript Object constructor builtin.
static let jsObjectConstructor = .functionAndConstructor([.anything...] => .object()) + .object(ofGroup: "ObjectConstructor", withProperties: ["prototype"], withMethods: ["assign", "fromEntries", "getOwnPropertyDescriptor", "getOwnPropertyDescriptors", "getOwnPropertyNames", "getOwnPropertySymbols", "is", "preventExtensions", "seal", "create", "defineProperties", "defineProperty", "freeze", "getPrototypeOf", "setPrototypeOf", "isExtensible", "isFrozen", "isSealed", "keys", "entries", "values"])
/// Type of the JavaScript Array constructor builtin.
static let jsArrayConstructor = .functionAndConstructor([.integer] => .jsArray) + .object(ofGroup: "ArrayConstructor", withProperties: ["prototype"], withMethods: ["from", "of", "isArray"])
/// Type of the JavaScript Function constructor builtin.
static let jsFunctionConstructor = ILType.constructor([.string] => .jsFunction(Signature.forUnknownFunction))
/// Type of the JavaScript String constructor builtin.
static let jsStringConstructor = ILType.functionAndConstructor([.anything] => .jsString) + .object(ofGroup: "StringConstructor", withProperties: ["prototype"], withMethods: ["fromCharCode", "fromCodePoint", "raw"])
/// Type of the JavaScript Boolean constructor builtin.
static let jsBooleanConstructor = ILType.functionAndConstructor([.anything] => .boolean) + .object(ofGroup: "BooleanConstructor", withProperties: ["prototype"], withMethods: [])
/// Type of the JavaScript Number constructor builtin.
static let jsNumberConstructor = ILType.functionAndConstructor([.anything] => .number) + .object(ofGroup: "NumberConstructor", withProperties: ["prototype", "EPSILON", "MAX_SAFE_INTEGER", "MAX_VALUE", "MIN_SAFE_INTEGER", "MIN_VALUE", "NaN", "NEGATIVE_INFINITY", "POSITIVE_INFINITY"], withMethods: ["isNaN", "isFinite", "isInteger", "isSafeInteger"])
/// Type of the JavaScript Symbol constructor builtin.
static let jsSymbolConstructor = ILType.function([.string] => .jsSymbol) + .object(ofGroup: "SymbolConstructor", withProperties: JavaScriptEnvironment.wellKnownSymbols, withMethods: ["for", "keyFor"])
/// Type of the JavaScript BigInt constructor builtin.
static let jsBigIntConstructor = ILType.function([.number] => .bigint) + .object(ofGroup: "BigIntConstructor", withProperties: ["prototype"], withMethods: ["asIntN", "asUintN"])
/// Type of the JavaScript RegExp constructor builtin.
static let jsRegExpConstructor = ILType.jsFunction([.string] => .jsRegExp)
/// Type of a JavaScript Error object of the given variant.
static func jsError(_ variant: String) -> ILType {
return .object(ofGroup: variant, withProperties: ["message", "name", "cause", "stack"], withMethods: ["toString"])
}
/// Type of the JavaScript Error constructor builtin
static func jsErrorConstructor(_ variant: String) -> ILType {
return .functionAndConstructor([.opt(.string)] => .jsError(variant))
}
/// Type of the JavaScript ArrayBuffer constructor builtin.
static let jsArrayBufferConstructor = ILType.constructor([.integer, .opt(.object())] => .jsArrayBuffer) + .object(ofGroup: "ArrayBufferConstructor", withProperties: ["prototype"], withMethods: ["isView"])
/// Type of the JavaScript SharedArrayBuffer constructor builtin.
static let jsSharedArrayBufferConstructor = ILType.constructor([.integer, .opt(.object())] => .jsSharedArrayBuffer) + .object(ofGroup: "SharedArrayBufferConstructor", withProperties: ["prototype"], withMethods: [])
/// Type of a JavaScript TypedArray constructor builtin.
static func jsTypedArrayConstructor(_ variant: String) -> ILType {
// TODO Also allow SharedArrayBuffers for first argument
return .constructor([.oneof(.integer, .object(ofGroup: "ArrayBuffer")), .opt(.integer), .opt(.integer)] => .jsTypedArray(variant))
}
/// Type of the JavaScript DataView constructor builtin. (TODO Also allow SharedArrayBuffers for first argument)
static let jsDataViewConstructor = ILType.constructor([.object(ofGroup: "ArrayBuffer"), .opt(.integer), .opt(.integer)] => .jsDataView)
/// Type of the JavaScript Promise constructor builtin.
static let jsPromiseConstructor = ILType.constructor([.function()] => .jsPromise) + .object(ofGroup: "PromiseConstructor", withProperties: ["prototype"], withMethods: ["resolve", "reject", "all", "any", "race", "allSettled"])
/// Type of the JavaScript Proxy constructor builtin.
static let jsProxyConstructor = ILType.constructor([.object(), .object()] => .anything)
/// Type of the JavaScript Map constructor builtin.
static let jsMapConstructor = ILType.constructor([.object()] => .jsMap)
/// Type of the JavaScript WeakMap constructor builtin.
static let jsWeakMapConstructor = ILType.constructor([.object()] => .jsWeakMap)
/// Type of the JavaScript Set constructor builtin.
static let jsSetConstructor = ILType.constructor([.object()] => .jsSet)
/// Type of the JavaScript WeakSet constructor builtin.
static let jsWeakSetConstructor = ILType.constructor([.object()] => .jsWeakSet)
/// Type of the JavaScript WeakRef constructor builtin.
static let jsWeakRefConstructor = ILType.constructor([.object()] => .jsWeakRef)
/// Type of the JavaScript FinalizationRegistry constructor builtin.
static let jsFinalizationRegistryConstructor = ILType.constructor([.function()] => .jsFinalizationRegistry)
/// Type of the JavaScript Math constructor builtin.
static let jsMathObject = ILType.object(ofGroup: "Math", withProperties: ["E", "PI"], withMethods: ["abs", "acos", "acosh", "asin", "asinh", "atan", "atanh", "atan2", "ceil", "cbrt", "expm1", "clz32", "cos", "cosh", "exp", "floor", "fround", "hypot", "imul", "log", "log1p", "log2", "log10", "max", "min", "pow", "random", "round", "sign", "sin", "sinh", "sqrt", "tan", "tanh", "trunc"])
/// Type of the JavaScript Date object
static let jsDate = ILType.object(ofGroup: "Date", withMethods: ["toISOString", "toDateString", "toTimeString", "toLocaleString", "getTime", "getFullYear", "getUTCFullYear", "getMonth", "getUTCMonth", "getDate", "getUTCDate", "getDay", "getUTCDay", "getHours", "getUTCHours", "getMinutes", "getUTCMinutes", "getSeconds", "getUTCSeconds", "getMilliseconds", "getUTCMilliseconds", "getTimezoneOffset", "getYear", "now", "setTime", "setMilliseconds", "setUTCMilliseconds", "setSeconds", "setUTCSeconds", "setMinutes", "setUTCMinutes", "setHours", "setUTCHours", "setDate", "setUTCDate", "setMonth", "setUTCMonth", "setFullYear", "setUTCFullYear", "setYear", "toJSON", "toUTCString", "toGMTString"])
/// Type of the JavaScript Date constructor builtin
static let jsDateConstructor = ILType.functionAndConstructor([.opt(.string | .number)] => .jsDate) + .object(ofGroup: "DateConstructor", withProperties: ["prototype"], withMethods: ["UTC", "now", "parse"])
/// Type of the JavaScript JSON object builtin.
static let jsJSONObject = ILType.object(ofGroup: "JSON", withMethods: ["parse", "stringify"])
/// Type of the JavaScript Reflect object builtin.
static let jsReflectObject = ILType.object(ofGroup: "Reflect", withMethods: ["apply", "construct", "defineProperty", "deleteProperty", "get", "getOwnPropertyDescriptor", "getPrototypeOf", "has", "isExtensible", "ownKeys", "preventExtensions", "set", "setPrototypeOf"])
/// Type of the JavaScript isNaN builtin function.
static let jsIsNaNFunction = ILType.function([.anything] => .boolean)
/// Type of the JavaScript isFinite builtin function.
static let jsIsFiniteFunction = ILType.function([.anything] => .boolean)
/// Type of the JavaScript escape builtin function.
static let jsEscapeFunction = ILType.function([.anything] => .jsString)
/// Type of the JavaScript unescape builtin function.
static let jsUnescapeFunction = ILType.function([.anything] => .jsString)
/// Type of the JavaScript decodeURI builtin function.
static let jsDecodeURIFunction = ILType.function([.anything] => .jsString)
/// Type of the JavaScript decodeURIComponent builtin function.
static let jsDecodeURIComponentFunction = ILType.function([.anything] => .jsString)
/// Type of the JavaScript encodeURI builtin function.
static let jsEncodeURIFunction = ILType.function([.anything] => .jsString)
/// Type of the JavaScript encodeURIComponent builtin function.
static let jsEncodeURIComponentFunction = ILType.function([.anything] => .jsString)
/// Type of the JavaScript eval builtin function.
static let jsEvalFunction = ILType.function([.string] => .anything)
/// Type of the JavaScript parseInt builtin function.
static let jsParseIntFunction = ILType.function([.string] => .integer)
/// Type of the JavaScript parseFloat builtin function.
static let jsParseFloatFunction = ILType.function([.string] => .float)
/// Type of the JavaScript undefined value.
static let jsUndefined = ILType.undefined
/// Type of the JavaScript NaN value.
static let jsNaN = ILType.float
/// Type of the JavaScript Infinity value.
static let jsInfinity = ILType.float
}
// Type information for the object groups that we use to model the JavaScript runtime environment.
// The general rules here are:
// * "output" type information (properties and return values) should be as precise as possible
// * "input" type information (function parameters) should be as broad as possible
public extension ObjectGroup {
/// Object group modelling JavaScript strings
static let jsStrings = ObjectGroup(
name: "String",
instanceType: .jsString,
properties: [
"length" : .integer,
],
methods: [
"charAt" : [.integer] => .jsString,
"charCodeAt" : [.integer] => .integer,
"codePointAt" : [.integer] => .integer,
"concat" : [.anything...] => .jsString,
"includes" : [.anything, .opt(.integer)] => .boolean,
"endsWith" : [.string, .opt(.integer)] => .boolean,
"indexOf" : [.anything, .opt(.integer)] => .integer,
"lastIndexOf" : [.anything, .opt(.integer)] => .integer,
"match" : [.regexp] => .jsString,
"matchAll" : [.regexp] => .jsString,
"normalize" : [] => .jsString, // the first parameter must be a specific string value, so we have a CodeGenerator for that instead
"padEnd" : [.integer, .opt(.string)] => .jsString,
"padStart" : [.integer, .opt(.string)] => .jsString,
"repeat" : [.integer] => .jsString,
"replace" : [.oneof(.string, .regexp), .string] => .jsString,
"replaceAll" : [.string, .string] => .jsString,
"search" : [.regexp] => .integer,
"slice" : [.integer, .opt(.integer)] => .jsString,
"split" : [.opt(.string), .opt(.integer)] => .jsArray,
"startsWith" : [.string, .opt(.integer)] => .boolean,
"substring" : [.integer, .opt(.integer)] => .jsString,
"trim" : [] => .undefined,
"trimStart" : [] => .jsString,
"trimLeft" : [] => .jsString,
"trimEnd" : [] => .jsString,
"trimRight" : [] => .jsString,
"toLowerCase" : [] => .jsString,
"toUpperCase" : [] => .jsString,
"localeCompare" : [.string, .opt(.string), .opt(.object())] => .jsString,
//"toLocaleLowerCase" : [.opt(.string...] => .jsString,
//"toLocaleUpperCase" : [.opt(.string...] => .jsString,
// ...
]
)
/// Object group modelling JavaScript regular expressions.
static let jsRegExps = ObjectGroup(
name: "RegExp",
instanceType: .jsRegExp,
properties: [
"flags" : .string,
"dotAll" : .boolean,
"global" : .boolean,
"ignoreCase" : .boolean,
"multiline" : .boolean,
"source" : .string,
"sticky" : .boolean,
"unicode" : .boolean,
],
methods: [
"compile" : [.string] => .jsRegExp,
"exec" : [.string] => .jsArray,
"test" : [.string] => .boolean,
]
)
/// Object group modelling JavaScript arrays
static let jsArrays = ObjectGroup(
name: "Array",
instanceType: .jsArray,
properties: [
"length" : .integer,
],
methods: [
"at" : [.integer] => .anything,
"copyWithin" : [.integer, .integer, .opt(.integer)] => .jsArray,
"entries" : [] => .jsArray,
"every" : [.function(), .opt(.object())] => .boolean,
"fill" : [.anything, .opt(.integer), .opt(.integer)] => .undefined,
"find" : [.function(), .opt(.object())] => .anything,
"findIndex" : [.function(), .opt(.object())] => .integer,
"findLast" : [.function(), .opt(.object())] => .anything,
"findLastIndex" : [.function(), .opt(.object())] => .integer,
"forEach" : [.function(), .opt(.object())] => .undefined,
"includes" : [.anything, .opt(.integer)] => .boolean,
"indexOf" : [.anything, .opt(.integer)] => .integer,
"join" : [.string] => .jsString,
"keys" : [] => .object(), // returns an array iterator
"lastIndexOf" : [.anything, .opt(.integer)] => .integer,
"reduce" : [.function(), .opt(.anything)] => .anything,
"reduceRight" : [.function(), .opt(.anything)] => .anything,
"reverse" : [] => .undefined,
"some" : [.function(), .opt(.anything)] => .boolean,
"sort" : [.function()] => .undefined,
"values" : [] => .object(),
"pop" : [] => .anything,
"push" : [.anything...] => .integer,
"shift" : [] => .anything,
"splice" : [.integer, .opt(.integer), .anything...] => .jsArray,
"unshift" : [.anything...] => .integer,
"concat" : [.anything...] => .jsArray,
"filter" : [.function(), .opt(.object())] => .jsArray,
"map" : [.function(), .opt(.object())] => .jsArray,
"slice" : [.opt(.integer), .opt(.integer)] => .jsArray,
"flat" : [.opt(.integer)] => .jsArray,
"flatMap" : [.function(), .opt(.anything)] => .jsArray,
"toString" : [] => .jsString,
"toLocaleString" : [.opt(.string), .opt(.object())] => .jsString,
"toReversed" : [] => .jsArray,
"toSorted" : [.opt(.function())] => .jsArray,
"toSpliced" : [.integer, .opt(.integer), .anything...] => .jsArray,
"with" : [.integer, .anything] => .jsArray,
]
)
/// ObjectGroup modelling JavaScript functions
static let jsFunctions = ObjectGroup(
name: "Function",
instanceType: .jsFunction(),
properties: [
"prototype" : .object(),
"length" : .integer,
"arguments" : .jsArray,
"caller" : .jsFunction(),
"name" : .jsString,
],
methods: [
"apply" : [.object(), .object()] => .anything,
"call" : [.object(), .anything...] => .anything,
"bind" : [.object(), .anything...] => .anything,
]
)
/// ObjectGroup modelling JavaScript Symbols
static let jsSymbols = ObjectGroup(
name: "Symbol",
instanceType: .jsSymbol,
properties: [
"description" : .jsString,
],
methods: [:]
)
/// Object group modelling JavaScript arguments objects.
static let jsArguments = ObjectGroup(
name: "Arguments",
instanceType: .jsArguments,
properties: [
"length": .integer,
"callee": .jsFunction(),
],
methods: [:]
)
static let jsGenerators = ObjectGroup(
name: "Generator",
instanceType: .jsGenerator,
properties: [:],
methods: [
"next" : [.opt(.anything)] => .object(withProperties: ["done", "value"]),
"return" : [.opt(.anything)] => .object(withProperties: ["done", "value"]),
"throw" : [.opt(.anything)] => .object(withProperties: ["done", "value"])
]
)
/// Object group modelling JavaScript promises.
static let jsPromises = ObjectGroup(
name: "Promise",
instanceType: .jsPromise,
properties: [:],
methods: [
"catch" : [.function()] => .jsPromise,
"then" : [.function()] => .jsPromise,
"finally" : [.function()] => .jsPromise,
]
)
/// ObjectGroup modelling JavaScript Map objects
static let jsMaps = ObjectGroup(
name: "Map",
instanceType: .jsMap,
properties: [
"size" : .integer
],
methods: [
"clear" : [] => .undefined,
"delete" : [.anything] => .boolean,
"entries" : [] => .object(),
"forEach" : [.function(), .opt(.object())] => .undefined,
"get" : [.anything] => .anything,
"has" : [.anything] => .boolean,
"keys" : [] => .object(),
"set" : [.anything, .anything] => .jsMap,
"values" : [] => .object(),
]
)
/// ObjectGroup modelling JavaScript WeakMap objects
static let jsWeakMaps = ObjectGroup(
name: "WeakMap",
instanceType: .jsWeakMap,
properties: [:],
methods: [
"delete" : [.anything] => .boolean,
"get" : [.anything] => .anything,
"has" : [.anything] => .boolean,
"set" : [.anything, .anything] => .jsWeakMap,
]
)
/// ObjectGroup modelling JavaScript Set objects
static let jsSets = ObjectGroup(
name: "Set",
instanceType: .jsSet,
properties: [
"size" : .integer
],
methods: [
"add" : [.anything] => .jsSet,
"clear" : [] => .undefined,
"delete" : [.anything] => .boolean,
"entries" : [] => .object(),
"forEach" : [.function(), .opt(.object())] => .undefined,
"has" : [.anything] => .boolean,
"keys" : [] => .object(),
"values" : [] => .object(),
]
)
/// ObjectGroup modelling JavaScript WeakSet objects
static let jsWeakSets = ObjectGroup(
name: "WeakSet",
instanceType: .jsWeakSet,
properties: [:],
methods: [