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TypeScript/tests/cases/conformance/types/typeRelationships/recursiveTypes/objectTypeWithRecursiveWrappedProperty2.ts_0_223
// Basic recursive type class List<T> { data: T; next: List<List<T>>; } var list1 = new List<number>(); var list2 = new List<number>(); var list3 = new List<string>(); list1 = list2; // ok list1 = list3; // error
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TypeScript/tests/cases/conformance/types/typeRelationships/recursiveTypes/objectTypeWithRecursiveWrappedPropertyCheckedNominally.ts_0_1184
// Types with infinitely expanding recursive types are type checked nominally class List<T> { data: T; next: List<List<T>>; } class MyList<T> { data: T; next: MyList<MyList<T>>; } var list1 = new List<number>(); var list2 = new List<string>(); var myList1 = new MyList<number>(); var myList2 = new My...
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TypeScript/tests/cases/conformance/types/typeRelationships/recursiveTypes/arrayLiteralsWithRecursiveGenerics.ts_0_475
class List<T> { data: T; next: List<List<T>>; } class DerivedList<U> extends List<U> { foo: U; // next: List<List<U>> } class MyList<T> { data: T; next: MyList<MyList<T>>; } var list: List<number>; var list2: List<string>; var myList: MyList<number>; var xs = [list, myList]; // {}[] var ys =...
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TypeScript/tests/cases/conformance/types/typeRelationships/recursiveTypes/infiniteExpansionThroughInstantiation2.ts_0_315
// instantiating a derived type can cause an infinitely expanding type reference to be generated // which could be used in an assignment check for constraint satisfaction interface AA<T extends AA<T>> // now an error due to referencing type parameter in constraint { x: T } interface BB extends AA<AA<BB>> { }
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TypeScript/tests/cases/conformance/types/typeRelationships/recursiveTypes/recursiveTypeInGenericConstraint.ts_0_278
class G<T> { x: G<G<T>>; // infinitely expanding type reference } class Foo<T extends G<T>> { // error, constraint referencing itself bar: T; } class D<T> { x: G<G<T>>; } var c1 = new Foo<D<string>>(); // ok, circularity in assignment compat check causes success
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TypeScript/tests/cases/conformance/types/typeRelationships/recursiveTypes/objectTypeWithRecursiveWrappedProperty.ts_0_223
// Basic recursive type class List<T> { data: T; next: List<List<T>>; } var list1 = new List<number>(); var list2 = new List<number>(); var list3 = new List<string>(); list1 = list2; // ok list1 = list3; // error
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TypeScript/tests/cases/conformance/types/typeRelationships/recursiveTypes/nominalSubtypeCheckOfTypeParameter2.ts_0_229
interface B<T> { bar: T; } // ok interface A<T> extends B<T> { foo: T; } // ok interface A2<T> extends B<B<string>> { baz: T; } interface C<T> { bam: T; } // ok interface A3<T> extends B<C<T>> { bing: T; }
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TypeScript/tests/cases/conformance/types/typeRelationships/recursiveTypes/recursiveTypeReferences1.ts_0_3641
// @strict: true // @declaration: true type ValueOrArray<T> = T | Array<ValueOrArray<T>>; const a0: ValueOrArray<number> = 1; const a1: ValueOrArray<number> = [1, [2, 3], [4, [5, [6, 7]]]]; type HypertextNode = string | [string, { [key: string]: unknown }, ...HypertextNode[]]; const hypertextNode: HypertextNode = ...
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TypeScript/tests/cases/conformance/types/typeRelationships/recursiveTypes/recursiveTypeReferences2.ts_0_700
// @checkjs: true // @outdir: out/ // @filename: bug39372.js // @declaration: true /** @typedef {ReadonlyArray<Json>} JsonArray */ /** @typedef {{ readonly [key: string]: Json }} JsonRecord */ /** @typedef {boolean | number | string | null | JsonRecord | JsonArray | readonly []} Json */ /** * @template T * @typedef ...
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TypeScript/tests/cases/conformance/types/typeRelationships/recursiveTypes/infiniteExpansionThroughTypeInference.ts_0_226
interface G<T> { x: G<G<T>> // infinitely expanding type reference y: T } function ff<T>(g: G<T>): void { ff(g) // when infering T here we need to make sure to not descend into the structure of G<T> infinitely }
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TypeScript/tests/cases/conformance/types/typeRelationships/recursiveTypes/recursiveTypesUsedAsFunctionParameters.ts_0_930
class List<T> { data: T; next: List<List<T>>; } class MyList<T> { data: T; next: MyList<MyList<T>>; } function foo<T>(x: List<T>); function foo<U>(x: List<U>); // error, duplicate function foo<T>(x: List<T>) { } function foo2<T>(x: List<T>); function foo2<U>(x: MyList<U>); // ok, nominally compared w...
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TypeScript/tests/cases/conformance/types/typeRelationships/recursiveTypes/infiniteExpansionThroughInstantiation.ts_0_510
// instantiating a derived type can cause an infinitely expanding type reference to be generated interface List<T> { data: T; next: List<T>; owner: OwnerList<T>; } // will have an owner property that is an infinitely expanding type reference interface OwnerList<U> extends List<List<U>> { name: string;...
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TypeScript/tests/cases/conformance/types/typeAliases/typeAliasesDoNotMerge.ts_0_31
export type A = {} type A = {}
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TypeScript/tests/cases/conformance/types/typeAliases/intrinsicKeyword.ts_0_462
// @strict: true let e1: intrinsic; let e2: { intrinsic: intrinsic }; type TE1 = (intrinsic); type TE2<intrinsic> = intrinsic; type TE3<T extends intrinsic> = T; type TE4<intrinsic extends intrinsic> = intrinsic; type TE5<intrinsic extends intrinsic> = (intrinsic); function f1() { let intrinsic: intrinsic.intrins...
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TypeScript/tests/cases/conformance/types/typeAliases/typeAliasesForObjectTypes.ts_0_495
type T1 = { x: string } // An interface can be named in an extends or implements clause, but a type alias for an object type literal cannot. interface I1 extends T1 { y: string } class C1 implements T1 { x: string; } // An interface can have multiple merged declarations, but a type alias for an object type litera...
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TypeScript/tests/cases/conformance/types/typeAliases/typeAliases.ts_0_1422
// Writing a reference to a type alias has exactly the same effect as writing the aliased type itself. type T1 = number; var x1: number; var x1: T1; type T2 = string; var x2: string; var x2: T2; type T3 = boolean; var x3: boolean; var x3: T3; type T4 = void; var x4: void; var x4: T4; type T5 = any; var x5: any; va...
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TypeScript/tests/cases/conformance/types/typeAliases/genericTypeAliases.ts_0_1127
type Tree<T> = T | { left: Tree<T>, right: Tree<T> }; var tree: Tree<number> = { left: { left: 0, right: { left: 1, right: 2 }, }, right: 3 }; type Lazy<T> = T | (() => T); var ls: Lazy<string>; ls = "eager"; ls = () => "lazy"; type Foo<T> = T | { x: Foo<T...
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TypeScript/tests/cases/conformance/types/typeAliases/asiPreventsParsingAsTypeAlias01.ts_1_51
var type; var string; var Foo; type Foo = string;
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TypeScript/tests/cases/conformance/types/typeAliases/circularTypeAliasForUnionWithClass.ts_0_199
var v0: T0; type T0 = string | I0; class I0 { x: T0; } var v3: T3; type T3 = string | I3; class I3 { [x: number]: T3; } var v4: T4; type T4 = string | I4; class I4 { [x: string]: T4; }
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TypeScript/tests/cases/conformance/types/typeAliases/classDoesNotDependOnBaseTypes.ts_0_280
type StringTree = string | StringTreeCollection; class StringTreeCollectionBase { [n: number]: StringTree; } class StringTreeCollection extends StringTreeCollectionBase { } var x: StringTree; if (typeof x !== "string") { x[0] = ""; x[0] = new StringTreeCollection; }
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TypeScript/tests/cases/conformance/types/typeAliases/directDependenceBetweenTypeAliases.ts_0_1005
// It is an error for the type specified in a type alias to depend on that type alias // A type alias directly depends on the type it aliases. type T0 = T0 type T0_1 = T0_2 type T0_2 = T0_3 type T0_3 = T0_1 // A type reference directly depends on the referenced type and each of the type arguments, if any. interface I...
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TypeScript/tests/cases/conformance/types/typeAliases/builtinIteratorReturn.ts_0_880
// @target: esnext // @noEmit: true // @strictBuiltinIteratorReturn: * declare const array: number[]; declare const map: Map<string, number>; declare const set: Set<number>; const i0 = array[Symbol.iterator](); const i1 = array.values(); const i2 = array.keys(); const i3 = array.entries(); for (const x of array); co...
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TypeScript/tests/cases/conformance/types/typeAliases/circularTypeAliasForUnionWithInterface.ts_0_345
var v0: T0; type T0 = string | I0; interface I0 { x: T0; } var v1: T1; type T1 = string | I1; interface I1 { (): T1; } var v2: T2; type T2 = string | I2; interface I2 { new (): T2; } var v3: T3; type T3 = string | I3; interface I3 { [x: number]: T3; } var v4: T4; type T4 = string | I4; interface I4 ...
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TypeScript/tests/cases/conformance/types/typeAliases/interfaceDoesNotDependOnBaseTypes.ts_0_184
var x: StringTree; if (typeof x !== "string") { x.push(""); x.push([""]); } type StringTree = string | StringTreeArray; interface StringTreeArray extends Array<StringTree> { }
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TypeScript/tests/cases/conformance/types/typeAliases/asiPreventsParsingAsTypeAlias02.ts_1_83
var type; var string; var Foo; namespace container { type Foo = string; }
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TypeScript/tests/cases/conformance/types/typeAliases/reservedNamesInAliases.ts_0_113
interface I {} type any = I; type number = I; type boolean = I; type string = I; type void = I; type object = I;
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TypeScript/tests/cases/conformance/types/typeAliases/intrinsicTypes.ts_0_1893
// @strict: true // @declaration: true type TU1 = Uppercase<'hello'>; // "HELLO" type TU2 = Uppercase<'foo' | 'bar'>; // "FOO" | "BAR" type TU3 = Uppercase<string>; // Uppercase<string> type TU4 = Uppercase<any>; // Uppercase<`${any}`> type TU5 = Uppercase<never>; // never type TU6 = Uppercase<42>; // Error typ...
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TypeScript/tests/cases/conformance/types/uniqueSymbol/uniqueSymbolsDeclarationsInJs.ts_0_714
// @target: esnext // @lib: esnext // @declaration: true // @allowJs: true // @checkJs: true // @filename: uniqueSymbolsDeclarationsInJs.js // @outFile: uniqueSymbolsDeclarationsInJs-out.js // @useDefineForClassFields: false // classes class C { /** * @readonly */ static readonlyStaticCall = Symbol()...
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TypeScript/tests/cases/conformance/types/uniqueSymbol/uniqueSymbols.ts_0_7714
// @target: esnext // @lib: esnext // @declaration: false // @useDefineForClassFields: false // declarations with call initializer const constCall = Symbol(); let letCall = Symbol(); var varCall = Symbol(); // ambient declaration with type declare const constType: unique symbol; // declaration with type and call ini...
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TypeScript/tests/cases/conformance/types/uniqueSymbol/uniqueSymbolsDeclarationsInJsErrors.ts_0_485
// @target: esnext // @lib: esnext // @declaration: true // @allowJs: true // @checkJs: true // @filename: uniqueSymbolsDeclarationsInJsErrors.js // @outFile: uniqueSymbolsDeclarationsInJsErrors-out.js // @useDefineForClassFields: false class C { /** * @type {unique symbol} */ static readwriteStaticT...
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TypeScript/tests/cases/conformance/types/uniqueSymbol/uniqueSymbolsErrors.ts_0_3875
// @target: esnext // @useDefineForClassFields: false // declarations declare const invalidUniqueType: unique number; declare const {}: unique symbol; declare let invalidLetType: unique symbol; declare var invalidVarType: unique symbol; // function arguments and return types declare function invalidArgType(arg: uniqu...
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TypeScript/tests/cases/conformance/types/uniqueSymbol/uniqueSymbolsDeclarations.ts_0_7134
// @target: esnext // @lib: esnext // @declaration: true // @useDefineForClassFields: false // declarations with call initializer const constCall = Symbol(); let letCall = Symbol(); var varCall = Symbol(); // ambient declaration with type declare const constType: unique symbol; // declaration with type and call init...
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TypeScript/tests/cases/conformance/types/uniqueSymbol/uniqueSymbolsPropertyNames.ts_0_1193
// @target: esnext // @lib: esnext interface OpTypes { readonly equal: unique symbol; } namespace OpNamespace { export declare const equal: unique symbol; } const uniqueSymbol0 = Symbol.for(""); const uniqueSymbol1 = Symbol.for(""); function getUniqueSymbol0(): typeof uniqueSymbol0 { return uniqueSymbol0; } ...
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TypeScript/tests/cases/conformance/types/uniqueSymbol/uniqueSymbolsDeclarationsErrors.ts_0_1329
// @target: esnext // @lib: esnext // @module: commonjs // @declaration: true // @useDefineForClassFields: false declare const s: unique symbol; interface I { readonly readonlyType: unique symbol; } // not allowed when emitting declarations export const obj = { method1(p: typeof s): typeof s { return p; ...
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TypeScript/tests/cases/conformance/types/intersection/intersectionWithIndexSignatures.ts_0_835
// @strict: true type A = { a: string }; type B = { b: string }; declare let sa1: { x: A & B }; declare let sa2: { x: A } & { x: B }; declare let ta1: { [key: string]: A & B }; declare let ta2: { [key: string]: A } & { [key: string]: B }; ta1 = sa1; ta1 = sa2; ta2 = sa1; ta2 = sa2; declare let sb1: { x: A } & { y: ...
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TypeScript/tests/cases/conformance/types/intersection/intersectionTypeEquivalence.ts_3_354
terface A { a: string } interface B { b: string } interface C { c: string } // A & B is equivalent to B & A. var y: A & B; var y : B & A; // AB & C is equivalent to A & BC, where AB is A & B and BC is B & C. var z : A & B & C; var z : (A & B) & C; var z : A & (B & C); var ab : A & B; var bc : B & C; var z1: typeof ab...
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TypeScript/tests/cases/conformance/types/intersection/intersectionAsWeakTypeSource.ts_0_541
interface X { x: string } interface Y { y: number } interface Z { z?: boolean } type XY = X & Y; const xy: XY = {x: 'x', y: 10}; const z1: Z = xy; // error, {xy} doesn't overlap with {z} interface ViewStyle { view: number styleMedia: string } type Brand<T> = number & { __brand: T } declare function create<T...
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TypeScript/tests/cases/conformance/types/intersection/intersectionTypeInference.ts_0_451
function extend<T, U>(obj1: T, obj2: U): T & U { var result: T & U; obj1 = result; obj2 = result; result = obj1; // Error result = obj2; // Error return result; } var x = extend({ a: "hello" }, { b: 42 }); var s = x.a; var n = x.b; interface A<T> { a: T; } interface B<U> { b: U; } ...
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TypeScript/tests/cases/conformance/types/intersection/intersectionTypeOverloading.ts_0_251
// Check that order is preserved in intersection types for purposes of // overload resolution type F = (s: string) => string; type G = (x: any) => any; var fg: F & G; var gf: G & F; var x = fg("abc"); var x: string; var y = gf("abc"); var y: any;
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TypeScript/tests/cases/conformance/types/intersection/intersectionTypeAssignment.ts_0_228
var a: { a: string }; var b: { b: string }; var x: { a: string, b: string }; var y: { a: string } & { b: string }; a = x; a = y; x = a; // Error y = a; // Error b = x; b = y; x = b; // Error y = b; // Error x = y; y = x;
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TypeScript/tests/cases/conformance/types/intersection/intersectionReductionStrict.ts_0_2686
// @strict: true declare const sym1: unique symbol; declare const sym2: unique symbol; type T1 = string & 'a'; // 'a' type T2 = 'a' & string & 'b'; // never type T3 = number & 10; // 10 type T4 = 10 & number & 20; // never type T5 = symbol & typeof sym1; // typeof sym1 type T6 = typeof sym1 & symbol & typeof sym...
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TypeScript/tests/cases/conformance/types/intersection/intersectionOfUnionNarrowing.ts_0_315
// @strict: true interface X { a?: { aProp: string }; b?: { bProp: string }; } type AorB = { a: object; b: undefined } | { a: undefined; b: object }; declare const q: X & AorB; if (q.a !== undefined) { q.a.aProp; } else { // q.b is previously incorrectly inferred as potentially undefined q.b.bProp; }
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TypeScript/tests/cases/conformance/types/intersection/intersectionOfUnionOfUnitTypes.ts_0_1181
// @strict const enum E { A, B, C, D, E, F } let x0: ('a' | 'b' | 'c') & ('a' | 'b' | 'c'); // 'a' | 'b' | 'c' let x1: ('a' | 'b' | 'c') & ('b' | 'c' | 'd'); // 'b' | 'c' let x2: ('a' | 'b' | 'c') & ('c' | 'd' | 'e'); // 'c' let x3: ('a' | 'b' | 'c') & ('d' | 'e' | 'f'); // never let x4: ('a' | 'b' | 'c') & ('b' ...
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TypeScript/tests/cases/conformance/types/intersection/intersectionNarrowing.ts_0_825
// @strict: true // Repros from #43130 function f1<T>(x: T & string | T & undefined) { if (x) { x; // Should narrow to T & string } } function f2<T>(x: T & string | T & undefined) { if (x !== undefined) { x; // Should narrow to T & string } else { x; // Should narrow to...
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TypeScript/tests/cases/conformance/types/intersection/intersectionReduction.ts_0_3452
// @strict: false declare const sym1: unique symbol; declare const sym2: unique symbol; type T1 = string & 'a'; // 'a' type T2 = 'a' & string & 'b'; // never type T3 = number & 10; // 10 type T4 = 10 & number & 20; // never type T5 = symbol & typeof sym1; // typeof sym1 type T6 = typeof sym1 & symbol & typeof sy...
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TypeScript/tests/cases/conformance/types/intersection/intersectionMemberOfUnionNarrowsCorrectly.ts_0_158
export type U = { kind?: 'A', a: string } | { kind?: 'B' } & { b: string }; type Ex<T, U> = T extends U ? T : never; declare let x: Ex<U, { kind?: 'A' }> x.a
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TypeScript/tests/cases/conformance/types/intersection/recursiveIntersectionTypes.ts_3_418
pe LinkedList<T> = T & { next: LinkedList<T> }; interface Entity { name: string; } interface Product extends Entity { price: number; } var entityList: LinkedList<Entity>; var s = entityList.name; var s = entityList.next.name; var s = entityList.next.next.name; var s = entityList.next.next.next.name; var pro...
{ "end_byte": 418, "start_byte": 3, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/intersection/recursiveIntersectionTypes.ts" }
TypeScript/tests/cases/conformance/types/intersection/intersectionThisTypes.ts_0_644
interface Thing1 { a: number; self(): this; } interface Thing2 { b: number; me(): this; } type Thing3 = Thing1 & Thing2; type Thing4 = Thing3 & string[]; function f1(t: Thing3) { t = t.self(); t = t.me().self().me(); } interface Thing5 extends Thing4 { c: string; } function f2(t: Thing5...
{ "end_byte": 644, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/intersection/intersectionThisTypes.ts" }
TypeScript/tests/cases/conformance/types/intersection/commonTypeIntersection.ts_0_265
declare let x1: { __typename?: 'TypeTwo' } & { a: boolean }; let y1: { __typename?: 'TypeOne' } & { a: boolean} = x1; // should error here declare let x2: { __typename?: 'TypeTwo' } & string; let y2: { __typename?: 'TypeOne' } & string = x2; // should error here
{ "end_byte": 265, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/intersection/commonTypeIntersection.ts" }
TypeScript/tests/cases/conformance/types/intersection/intersectionTypeMembers.ts_3_1401
An intersection type has those members that are present in any of its constituent types, // with types that are intersections of the respective members in the constituent types interface A { a: string } interface B { b: string } interface C { c: string } var abc: A & B & C; abc.a = "hello"; abc.b = "hello"; abc.c = ...
{ "end_byte": 1401, "start_byte": 3, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/intersection/intersectionTypeMembers.ts" }
TypeScript/tests/cases/conformance/types/intersection/intersectionsAndEmptyObjects.ts_0_1950
// @target: es2015 // @module: commonjs // @esModuleInterop: true // @filename: intersectionsAndEmptyObjects.ts // Empty object type literals are removed from intersections types // that contain other object types type A = { a: number }; type B = { b: string }; type C = {}; let x01: A & B; let x02: A & C; let x03: B...
{ "end_byte": 1950, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/intersection/intersectionsAndEmptyObjects.ts" }
TypeScript/tests/cases/conformance/types/intersection/contextualIntersectionType.ts_0_106
var x: { a: (s: string) => string } & { b: (n: number) => number }; x = { a: s => s, b: n => n };
{ "end_byte": 106, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/intersection/contextualIntersectionType.ts" }
TypeScript/tests/cases/conformance/types/intersection/intersectionAndUnionTypes.ts_3_485
terface A { a: string } interface B { b: string } interface C { c: string } interface D { d: string } var a: A; var b: B; var c: C; var d: D; var anb: A & B; var aob: A | B; var cnd: C & D; var cod: C | D; var x: A & B | C & D; var y: (A | B) & (C | D); a = anb; // Ok b = anb; // Ok anb = a; anb = b; x = anb; // ...
{ "end_byte": 485, "start_byte": 3, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/intersection/intersectionAndUnionTypes.ts" }
TypeScript/tests/cases/conformance/types/intersection/operatorsAndIntersectionTypes.ts_0_834
type Guid = string & { $Guid }; // Tagged string type type SerialNo = number & { $SerialNo }; // Tagged number type function createGuid() { return "21EC2020-3AEA-4069-A2DD-08002B30309D" as Guid; } function createSerialNo() { return 12345 as SerialNo; } let map1: { [x: string]: number } = {}; let gu...
{ "end_byte": 834, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/intersection/operatorsAndIntersectionTypes.ts" }
TypeScript/tests/cases/conformance/types/intersection/intersectionTypeReadonly.ts_0_692
interface Base { readonly value: number; } interface Identical { readonly value: number; } interface Mutable { value: number; } interface DifferentType { readonly value: string; } interface DifferentName { readonly other: number; } let base: Base; base.value = 12 // error, lhs can't be a readonly pr...
{ "end_byte": 692, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/intersection/intersectionTypeReadonly.ts" }
TypeScript/tests/cases/conformance/types/intersection/intersectionWithUnionConstraint.ts_0_1290
// @strict: true function f1<T extends string | number, U extends string | number>(x: T & U) { // Combined constraint of 'T & U' is 'string | number' let y: string | number = x; } function f2<T extends string | number | undefined, U extends string | null | undefined>(x: T & U) { let y1: string | number = ...
{ "end_byte": 1290, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/intersection/intersectionWithUnionConstraint.ts" }
TypeScript/tests/cases/conformance/types/intersection/intersectionTypeInference2.ts_0_368
declare function f<T>(x: { prop: T }): T; declare const a: { prop: string } & { prop: number }; declare const b: { prop: string & number }; f(a); // never f(b); // never // Repro from #18354 declare function f2<T, Key extends keyof T>(obj: {[K in keyof T]: T[K]}, key: Key): T[Key]; declare const obj: { a: string...
{ "end_byte": 368, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/intersection/intersectionTypeInference2.ts" }
TypeScript/tests/cases/conformance/types/intersection/intersectionTypeInference3.ts_0_362
// @strict: true // @target: es2015 // Repro from #19682 type Nominal<Kind extends string, Type> = Type & { [Symbol.species]: Kind; }; type A = Nominal<'A', string>; declare const a: Set<A>; declare const b: Set<A>; const c1 = Array.from(a).concat(Array.from(b)); // Simpler repro declare function from<T>(): ...
{ "end_byte": 362, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/intersection/intersectionTypeInference3.ts" }
TypeScript/tests/cases/conformance/types/primitives/enum/validEnumAssignments.ts_0_192
enum E { A, B } var n: number; var a: any; var e: E; n = e; n = E.A; a = n; a = e; a = E.A; e = e; e = E.A; e = E.B; e = n; e = null; e = undefined; e = 1; e = 1.; e = 1.0; e = -1;
{ "end_byte": 192, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/enum/validEnumAssignments.ts" }
TypeScript/tests/cases/conformance/types/primitives/enum/invalidEnumAssignments.ts_0_161
enum E { A, B } enum E2 { A, B } var e: E; var e2: E2; e = E2.A; e2 = E.A; e = <void>null; e = {}; e = ''; function f<T>(a: T) { e = a; }
{ "end_byte": 161, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/enum/invalidEnumAssignments.ts" }
TypeScript/tests/cases/conformance/types/primitives/stringLiteral/stringLiteralType.ts_0_80
var x: 'hi'; function f(x: 'hi'); function f(x: string); function f(x: any) { }
{ "end_byte": 80, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/stringLiteral/stringLiteralType.ts" }
TypeScript/tests/cases/conformance/types/primitives/number/numberPropertyAccess.ts_0_145
var x = 1; var a = x.toExponential(); var b = x.hasOwnProperty('toFixed'); var c = x['toExponential'](); var d = x['hasOwnProperty']('toFixed');
{ "end_byte": 145, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/number/numberPropertyAccess.ts" }
TypeScript/tests/cases/conformance/types/primitives/number/assignFromNumberInterface2.ts_0_427
interface Number { doStuff(): string; } interface NotNumber { toString(radix?: number): string; toFixed(fractionDigits?: number): string; toExponential(fractionDigits?: number): string; toPrecision(precision?: number): string; valueOf(): number; doStuff(): string; } var x = 1; var a: Numbe...
{ "end_byte": 427, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/number/assignFromNumberInterface2.ts" }
TypeScript/tests/cases/conformance/types/primitives/number/extendNumberInterface.ts_0_224
interface Number { doStuff(): string; doOtherStuff<T>(x:T): T; } var x = 1; var a: string = x.doStuff(); var b: string = x.doOtherStuff('hm'); var c: string = x['doStuff'](); var d: string = x['doOtherStuff']('hm');
{ "end_byte": 224, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/number/extendNumberInterface.ts" }
TypeScript/tests/cases/conformance/types/primitives/number/invalidNumberAssignments.ts_0_318
var x = 1; var a: boolean = x; var b: string = x; var c: void = x; var d: typeof undefined = x; class C { foo: string; } var e: C = x; interface I { bar: string; } var f: I = x; var g: { baz: string } = 1; var g2: { 0: number } = 1; module M { export var x = 1; } M = x; function i<T>(a: T) { a = x; } i = x;
{ "end_byte": 318, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/number/invalidNumberAssignments.ts" }
TypeScript/tests/cases/conformance/types/primitives/number/validNumberAssignments.ts_0_113
var x = 1; var a: any = x; var b: Object = x; var c: number = x; enum E { A }; var d: E = x; var e = E.A; e = x;
{ "end_byte": 113, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/number/validNumberAssignments.ts" }
TypeScript/tests/cases/conformance/types/primitives/number/assignFromNumberInterface.ts_0_39
var x = 1; var a: Number; x = a; a = x;
{ "end_byte": 39, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/number/assignFromNumberInterface.ts" }
TypeScript/tests/cases/conformance/types/primitives/null/validNullAssignments.ts_0_453
var a: number = null; var b: boolean = null; var c: string = null; var d: void = null; var e: typeof undefined = null; e = null; // ok enum E { A } E.A = null; // error class C { foo: string } var f: C; f = null; // ok C = null; // error interface I { foo: string } var g: I; g = null; // ok I = null; // error modu...
{ "end_byte": 453, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/null/validNullAssignments.ts" }
TypeScript/tests/cases/conformance/types/primitives/null/directReferenceToNull.ts_0_12
var x: Null;
{ "end_byte": 12, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/null/directReferenceToNull.ts" }
TypeScript/tests/cases/conformance/types/primitives/undefined/invalidUndefinedAssignments.ts_0_235
var x: typeof undefined; enum E { A } E = x; E.A = x; class C { foo: string } var f: C; C = x; interface I { foo: string } var g: I; g = x; I = x; module M { export var x = 1; } M = x; function i<T>(a: T) { } // BUG 767030 i = x;
{ "end_byte": 235, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/undefined/invalidUndefinedAssignments.ts" }
TypeScript/tests/cases/conformance/types/primitives/undefined/invalidUndefinedValues.ts_0_304
var x: typeof undefined; x = 1; x = ''; x = true; var a: void; x = a; x = null; class C { foo: string } var b: C; x = C; x = b; interface I { foo: string } var c: I; x = c; module M { export var x = 1; } x = M; x = { f() { } } function f<T>(a: T) { x = a; } x = f; enum E { A } x = E; x = E.A;
{ "end_byte": 304, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/undefined/invalidUndefinedValues.ts" }
TypeScript/tests/cases/conformance/types/primitives/undefined/directReferenceToUndefined.ts_0_36
var x: Undefined; var y = undefined;
{ "end_byte": 36, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/undefined/directReferenceToUndefined.ts" }
TypeScript/tests/cases/conformance/types/primitives/undefined/validUndefinedAssignments.ts_0_303
var x: typeof undefined; var a: number = x; var b: boolean = x; var c: string = x; var d: void = x; var e: typeof undefined = x; e = x; // should work class C { foo: string } var f: C; f = x; interface I { foo: string } var g: I; g = x; var h: { f(): void } = x; function i<T>(a: T) { a = x; }
{ "end_byte": 303, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/undefined/validUndefinedAssignments.ts" }
TypeScript/tests/cases/conformance/types/primitives/undefined/validUndefinedValues.ts_0_39
var x: typeof undefined; x = undefined;
{ "end_byte": 39, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/undefined/validUndefinedValues.ts" }
TypeScript/tests/cases/conformance/types/primitives/void/invalidAssignmentsToVoid.ts_0_223
var x: void; x = 1; x = true; x = ''; x = {} class C { foo: string; } var c: C; x = C; x = c; interface I { foo: string; } var i: I; x = i; module M { export var x = 1; } x = M; function f<T>(a: T) { x = a; } x = f;
{ "end_byte": 223, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/void/invalidAssignmentsToVoid.ts" }
TypeScript/tests/cases/conformance/types/primitives/void/invalidVoidValues.ts_0_253
var x: void; x = 1; x = ''; x = true; enum E { A } x = E; x = E.A; class C { foo: string } var a: C; x = a; interface I { foo: string } var b: I; x = b; x = { f() {} } module M { export var x = 1; } x = M; function f<T>(a: T) { x = a; } x = f;
{ "end_byte": 253, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/void/invalidVoidValues.ts" }
TypeScript/tests/cases/conformance/types/primitives/void/validVoidAssignments.ts_0_58
var x: void; var y: any; var z: void; y = x; x = y; x = z;
{ "end_byte": 58, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/void/validVoidAssignments.ts" }
TypeScript/tests/cases/conformance/types/primitives/void/validVoidValues.ts_0_37
var x: void; x = undefined; x = null;
{ "end_byte": 37, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/void/validVoidValues.ts" }
TypeScript/tests/cases/conformance/types/primitives/void/invalidVoidAssignments.ts_0_369
var x: void; var a: boolean = x; var b: string = x; var c: number = x; var d: typeof undefined = x; class C { foo: string; } var e: C = x; interface I { bar: string; } var f: I = x; var g: { baz: string } = 1; var g2: { 0: number } = 1; module M { export var x = 1; } M = x; function i<T>(a: T) { a = x; } i = ...
{ "end_byte": 369, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/void/invalidVoidAssignments.ts" }
TypeScript/tests/cases/conformance/types/primitives/boolean/extendBooleanInterface.ts_0_229
interface Boolean { doStuff(): string; doOtherStuff<T>(x: T): T; } var x = true; var a: string = x.doStuff(); var b: string = x.doOtherStuff('hm'); var c: string = x['doStuff'](); var d: string = x['doOtherStuff']('hm');
{ "end_byte": 229, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/boolean/extendBooleanInterface.ts" }
TypeScript/tests/cases/conformance/types/primitives/boolean/assignFromBooleanInterface.ts_0_43
var x = true; var a: Boolean; x = a; a = x;
{ "end_byte": 43, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/boolean/assignFromBooleanInterface.ts" }
TypeScript/tests/cases/conformance/types/primitives/boolean/booleanPropertyAccess.ts_0_61
var x = true; var a = x.toString(); var b = x['toString']();
{ "end_byte": 61, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/boolean/booleanPropertyAccess.ts" }
TypeScript/tests/cases/conformance/types/primitives/boolean/boolInsteadOfBoolean.ts_0_39
var x: bool; var a: boolean = x; x = a;
{ "end_byte": 39, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/boolean/boolInsteadOfBoolean.ts" }
TypeScript/tests/cases/conformance/types/primitives/boolean/assignFromBooleanInterface2.ts_0_226
interface Boolean { doStuff(): string; } interface NotBoolean { doStuff(): string; } var x = true; var a: Boolean; var b: NotBoolean; a = x; a = b; b = a; b = x; x = a; // expected error x = b; // expected error
{ "end_byte": 226, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/boolean/assignFromBooleanInterface2.ts" }
TypeScript/tests/cases/conformance/types/primitives/boolean/invalidBooleanAssignments.ts_0_366
var x = true; var a: number = x; var b: string = x; var c: void = x; var d: typeof undefined = x; enum E { A } var e: E = x; class C { foo: string } var f: C = x; interface I { bar: string } var g: I = x; var h: { (): string } = x; var h2: { toString(): string } = x; // no error module M { export var a = 1; } M =...
{ "end_byte": 366, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/boolean/invalidBooleanAssignments.ts" }
TypeScript/tests/cases/conformance/types/primitives/boolean/validBooleanAssignments.ts_0_89
var x = true; var a: any = x; var b: Object = x; var c: Boolean = x; var d: boolean = x;
{ "end_byte": 89, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/boolean/validBooleanAssignments.ts" }
TypeScript/tests/cases/conformance/types/primitives/string/assignFromStringInterface.ts_0_40
var x = ''; var a: String; x = a; a = x;
{ "end_byte": 40, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/string/assignFromStringInterface.ts" }
TypeScript/tests/cases/conformance/types/primitives/string/assignFromStringInterface2.ts_0_1499
interface String { doStuff(): string; } interface NotString { doStuff(): string; toString(): string; charAt(pos: number): string; charCodeAt(index: number): number; concat(...strings: string[]): string; indexOf(searchString: string, position?: number): number; lastIndexOf(searchString: ...
{ "end_byte": 1499, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/string/assignFromStringInterface2.ts" }
TypeScript/tests/cases/conformance/types/primitives/string/extendStringInterface.ts_0_225
interface String { doStuff(): string; doOtherStuff<T>(x:T): T; } var x = ''; var a: string = x.doStuff(); var b: string = x.doOtherStuff('hm'); var c: string = x['doStuff'](); var d: string = x['doOtherStuff']('hm');
{ "end_byte": 225, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/string/extendStringInterface.ts" }
TypeScript/tests/cases/conformance/types/primitives/string/invalidStringAssignments.ts_0_347
var x = ''; var a: boolean = x; var b: number = x; var c: void = x; var d: typeof undefined = x; class C { foo: string; } var e: C = x; interface I { bar: string; } var f: I = x; var g: { baz: string } = 1; var g2: { 0: number } = 1; module M { export var x = 1; } M = x; function i<T>(a: T) { a = x; } i = x; ...
{ "end_byte": 347, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/string/invalidStringAssignments.ts" }
TypeScript/tests/cases/conformance/types/primitives/string/validStringAssignments.ts_0_85
var x = ''; var a: any = x; var b: Object = x; var c: string = x; var d: String = x;
{ "end_byte": 85, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/string/validStringAssignments.ts" }
TypeScript/tests/cases/conformance/types/primitives/string/stringPropertyAccess.ts_0_133
var x = ''; var a = x.charAt(0); var b = x.hasOwnProperty('charAt'); var c = x['charAt'](0); var e = x['hasOwnProperty']('toFixed');
{ "end_byte": 133, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/string/stringPropertyAccess.ts" }
TypeScript/tests/cases/conformance/types/primitives/string/stringPropertyAccessWithError.ts_0_52
var x = ''; var d = x['charAt']('invalid'); // error
{ "end_byte": 52, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/primitives/string/stringPropertyAccessWithError.ts" }
TypeScript/tests/cases/conformance/types/any/anyPropertyAccess.ts_0_120
var x: any; var a = x.foo; var b = x['foo']; var c = x['fn'](); var d = x.bar.baz; var e = x[0].foo; var f = x['0'].bar;
{ "end_byte": 120, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/any/anyPropertyAccess.ts" }
TypeScript/tests/cases/conformance/types/any/anyAsGenericFunctionCall.ts_0_231
// any is considered an untyped function call // can be called except with type arguments which is an error var x: any; var a = x<number>(); var b = x<string>('hello'); class C { foo: string; } var c = x<C>(x); var d = x<any>(x);
{ "end_byte": 231, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/any/anyAsGenericFunctionCall.ts" }
TypeScript/tests/cases/conformance/types/any/anyAsConstructor.ts_0_255
// any is considered an untyped function call // can be called except with type arguments which is an error var x: any; var a = new x(); var b = new x('hello'); var c = new x(x); // grammar allows this for constructors var d = new x<any>(x); // no error
{ "end_byte": 255, "start_byte": 0, "url": "https://github.com/microsoft/TypeScript/blob/main/tests/cases/conformance/types/any/anyAsConstructor.ts" }
TypeScript/tests/cases/conformance/types/any/assignAnyToEveryType.ts_0_455
// all of these are valid var x: any; var a: number = x; var b: boolean = x; var c: string = x; var d: void = x; var e = null; e = x; var f = undefined; f = x; enum E { A } var g: E = x; var g2 = E.A; g2 = x; class C { foo: string; } var h: C = x; interface I { foo: string; } var i: I = x; var j: {...
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TypeScript/tests/cases/conformance/types/any/narrowFromAnyWithInstanceof.ts_0_453
declare var x: any; if (x instanceof Function) { // 'any' is not narrowed when target type is 'Function' x(); x(1, 2, 3); x("hello!"); x.prop; } if (x instanceof Object) { // 'any' is not narrowed when target type is 'Object' x.method(); x(); } if (x instanceof Error) { // 'any' is narrowed t...
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TypeScript/tests/cases/conformance/types/any/narrowFromAnyWithTypePredicate.ts_0_698
declare var x: any; declare function isFunction(x): x is Function; declare function isObject(x): x is Object; declare function isAnything(x): x is {}; declare function isError(x): x is Error; declare function isDate(x): x is Date; if (isFunction(x)) { // 'any' is not narrowed when target type is 'Function' x(); ...
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TypeScript/tests/cases/conformance/types/any/anyAsFunctionCall.ts_0_167
// any is considered an untyped function call // can be called except with type arguments which is an error var x: any; var a = x(); var b = x('hello'); var c = x(x);
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