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crates/swc_ecma_parser/tests/tsc/generatorTypeCheck7.ts
TypeScript
//@target: ES6 interface WeirdIter extends IterableIterator<number> { hello: string; } function* g1(): WeirdIter { }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/generatorTypeCheck8.ts
TypeScript
//@target: ES6 interface BadGenerator extends Iterator<number>, Iterable<string> { } function* g3(): BadGenerator { }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/generatorTypeCheck9.ts
TypeScript
//@target: ES6 function* g3(): void { }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/generatorYieldContextualType.ts
TypeScript
// @target: esnext // @strict: true // @noEmit: true declare function f1<T, R, S>(gen: () => Generator<R, T, S>): void; f1<0, 0, 1>(function* () { const a = yield 0; return 0; }); declare function f2<T, R, S>(gen: () => Generator<R, T, S> | AsyncGenerator<R, T, S>): void; f2<0, 0, 1>(async function* () { const a = yield 0; return 0; }); // repro from #41428 enum Directive { Back, Cancel, LoadMore, Noop, } namespace Directive { export function is<T>(value: Directive | T): value is Directive { return typeof value === "number" && Directive[value] != null; } } interface QuickPickItem { label: string; description?: string; detail?: string; picked?: boolean; alwaysShow?: boolean; } interface QuickInputStep { placeholder?: string; prompt?: string; title?: string; } interface QuickPickStep<T extends QuickPickItem = QuickPickItem> { placeholder?: string; title?: string; } type StepGenerator = | Generator< QuickPickStep | QuickInputStep, StepResult<void | undefined>, any | undefined > | AsyncGenerator< QuickPickStep | QuickInputStep, StepResult<void | undefined>, any | undefined >; type StepItemType<T> = T extends QuickPickStep<infer U> ? U[] : T extends QuickInputStep ? string : never; namespace StepResult { export const Break = Symbol("BreakStep"); } type StepResult<T> = typeof StepResult.Break | T; type StepResultGenerator<T> = | Generator<QuickPickStep | QuickInputStep, StepResult<T>, any | undefined> | AsyncGenerator< QuickPickStep | QuickInputStep, StepResult<T>, any | undefined >; type StepSelection<T> = T extends QuickPickStep<infer U> ? U[] | Directive : T extends QuickInputStep ? string | Directive : never; type PartialStepState<T = unknown> = Partial<T> & { counter: number; confirm?: boolean; startingStep?: number; }; type StepState<T = Record<string, unknown>> = T & { counter: number; confirm?: boolean; startingStep?: number; }; function canPickStepContinue<T extends QuickPickStep>( _step: T, _state: PartialStepState, _selection: StepItemType<T> | Directive ): _selection is StepItemType<T> { return false; } function createPickStep<T extends QuickPickItem>( step: QuickPickStep<T> ): QuickPickStep<T> { return step; } function* showStep< State extends PartialStepState & { repo: any }, Context extends { repos: any[]; title: string; status: any } >(state: State, _context: Context): StepResultGenerator<QuickPickItem> { const step: QuickPickStep<QuickPickItem> = createPickStep<QuickPickItem>({ title: "", placeholder: "", }); const selection: StepSelection<typeof step> = yield step; return canPickStepContinue(step, state, selection) ? selection[0] : StepResult.Break; }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/generic.ts
TypeScript
// @Filename: /a.ts export class A<T> { a!: T } export type { A as B }; // @Filename: /b.ts import type { A } from './a'; import { B } from './a'; let a: A<string> = { a: "" }; let b: B<number> = { a: 3 }; let c: A<boolean> = {}; let d: B = { a: "" };
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericAndNonGenericInterfaceWithTheSameName.ts
TypeScript
// generic and non-generic interfaces with the same name do not merge interface A { foo: string; } interface A<T> { // error bar: T; } module M { interface A<T> { bar: T; } interface A { // error foo: string; } } module M2 { interface A { foo: string; } } module M2 { interface A<T> { // ok, different declaration space than other M2 bar: T; } } module M3 { export interface A { foo: string; } } module M3 { export interface A<T> { // error bar: T; } }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericAndNonGenericInterfaceWithTheSameName2.ts
TypeScript
// generic and non-generic interfaces with the same name do not merge module M { interface A<T> { bar: T; } } module M2 { interface A { // ok foo: string; } } module N { module M { interface A<T> { bar: T; } } module M2 { interface A { // ok foo: string; } } }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallToOverloadedMethodWithOverloadedArguments.ts
TypeScript
module m1 { interface Promise<T> { then<U>(cb: (x: T) => Promise<U>): Promise<U>; } declare function testFunction(n: number): Promise<number>; var numPromise: Promise<number>; var newPromise = numPromise.then(testFunction); } ////////////////////////////////////// module m2 { interface Promise<T> { then<U>(cb: (x: T) => Promise<U>): Promise<U>; } declare function testFunction(n: number): Promise<number>; declare function testFunction(s: string): Promise<string>; var numPromise: Promise<number>; var newPromise = numPromise.then(testFunction); } ////////////////////////////////////// module m3 { interface Promise<T> { then<U>(cb: (x: T) => Promise<U>): Promise<U>; then<U>(cb: (x: T) => Promise<U>, error?: (error: any) => Promise<U>): Promise<U>; } declare function testFunction(n: number): Promise<number>; var numPromise: Promise<number>; var newPromise = numPromise.then(testFunction); } ////////////////////////////////////// module m4 { interface Promise<T> { then<U>(cb: (x: T) => Promise<U>): Promise<U>; then<U>(cb: (x: T) => Promise<U>, error?: (error: any) => Promise<U>): Promise<U>; } declare function testFunction(n: number): Promise<number>; declare function testFunction(s: string): Promise<string>; var numPromise: Promise<number>; var newPromise = numPromise.then(testFunction); } ////////////////////////////////////// module m5 { interface Promise<T> { then<U>(cb: (x: T) => Promise<U>): Promise<U>; then<U>(cb: (x: T) => Promise<U>, error?: (error: any) => Promise<U>): Promise<U>; then<U>(cb: (x: T) => Promise<U>, error?: (error: any) => U, progress?: (preservation: any) => void): Promise<U>; } declare function testFunction(n: number): Promise<number>; declare function testFunction(s: string): Promise<string>; var numPromise: Promise<number>; var newPromise = numPromise.then(testFunction); } ////////////////////////////////////// module m6 { interface Promise<T> { then<U>(cb: (x: T) => Promise<U>): Promise<U>; then<U>(cb: (x: T) => Promise<U>, error?: (error: any) => Promise<U>): Promise<U>; } declare function testFunction(n: number): Promise<number>; declare function testFunction(s: string): Promise<string>; declare function testFunction(b: boolean): Promise<boolean>; var numPromise: Promise<number>; var newPromise = numPromise.then(testFunction); }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallTypeArgumentInference.ts
TypeScript
// Basic type inference with generic calls, no errors expected function foo<T>(t: T) { return t; } var r = foo(''); // string function foo2<T, U>(t: T, u: U) { return u; } function foo2b<T, U>(u: U) { var x: T; return x; } var r2 = foo2('', 1); // number var r3 = foo2b(1); // {} class C<T, U> { constructor(public t: T, public u: U) { } foo(t: T, u: U) { return t; } foo2(t: T, u: U) { return u; } foo3<T>(t: T, u: U) { return t; } foo4<U>(t: T, u: U) { return t; } foo5<T,U>(t: T, u: U) { return t; } foo6<T, U>() { var x: T; return x; } foo7<T, U>(u: U) { var x: T; return x; } foo8<T, U>() { var x: T; return x; } } var c = new C('', 1); var r4 = c.foo('', 1); // string var r5 = c.foo2('', 1); // number var r6 = c.foo3(true, 1); // boolean var r7 = c.foo4('', true); // string var r8 = c.foo5(true, 1); // boolean var r9 = c.foo6(); // {} var r10 = c.foo7(''); // {} var r11 = c.foo8(); // {} interface I<T, U> { new (t: T, u: U); foo(t: T, u: U): T; foo2(t: T, u: U): U; foo3<T>(t: T, u: U): T; foo4<U>(t: T, u: U): T; foo5<T, U>(t: T, u: U): T; foo6<T, U>(): T; foo7<T, U>(u: U): T; foo8<T, U>(): T; } var i: I<string, number>; var r4 = i.foo('', 1); // string var r5 = i.foo2('', 1); // number var r6 = i.foo3(true, 1); // boolean var r7 = i.foo4('', true); // string var r8 = i.foo5(true, 1); // boolean var r9 = i.foo6(); // {} var r10 = i.foo7(''); // {} var r11 = i.foo8(); // {}
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithArrayLiteralArgs.ts
TypeScript
function foo<T>(t: T) { return t; } var r = foo([1, 2]); // number[] var r = foo<number[]>([1, 2]); // number[] var ra = foo<any[]>([1, 2]); // any[] var r2 = foo([]); // any[] var r3 = foo<number[]>([]); // number[] var r4 = foo([1, '']); // {}[] var r5 = foo<any[]>([1, '']); // any[] var r6 = foo<Object[]>([1, '']); // Object[]
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithConstraintsTypeArgumentInference.ts
TypeScript
// Basic type inference with generic calls and constraints, no errors expected class Base { foo: string; } class Derived extends Base { bar: string; } class Derived2 extends Derived { baz: string; } var b: Base; var d1: Derived; var d2: Derived2; function foo<T extends Base>(t: T) { return t; } var r = foo(b); // Base var r2 = foo(d1); // Derived function foo2<T extends Base, U extends Derived>(t: T, u: U) { return u; } function foo2b<T extends Base, U extends Derived>(u: U) { var x: T; return x; } function foo2c<T extends Base, U extends Derived>() { var x: T; return x; } var r3 = foo2b(d1); // Base var r3b = foo2c(); // Base class C<T extends Base, U extends Derived> { constructor(public t: T, public u: U) { } foo(t: T, u: U) { return t; } foo2(t: T, u: U) { return u; } foo3<T extends Derived>(t: T, u: U) { return t; } foo4<U extends Derived2>(t: T, u: U) { return t; } foo5<T extends Derived, U extends Derived2>(t: T, u: U) { return t; } foo6<T extends Derived, U extends Derived2>() { var x: T; return x; } foo7<T extends Base, U extends Derived>(u: U) { var x: T; return x; } foo8<T extends Base, U extends Derived>() { var x: T; return x; } } var c = new C(b, d1); var r4 = c.foo(d1, d2); // Base var r5 = c.foo2(b, d2); // Derived var r6 = c.foo3(d1, d1); // Derived var r7 = c.foo4(d1, d2); // Base var r8 = c.foo5(d1, d2); // Derived var r8b = c.foo5(d2, d2); // Derived2 var r9 = c.foo6(); // Derived var r10 = c.foo7(d1); // Base var r11 = c.foo8(); // Base interface I<T extends Base, U extends Derived> { new (t: T, u: U); foo(t: T, u: U): T; foo2(t: T, u: U): U; foo3<T extends Derived>(t: T, u: U): T; foo4<U extends Derived2>(t: T, u: U): T; foo5<T extends Derived, U extends Derived2>(t: T, u: U): T; foo6<T extends Derived, U extends Derived2>(): T; foo7<T extends Base, U extends Derived>(u: U): T; foo8<T extends Base, U extends Derived>(): T; } var i: I<Base, Derived>; var r4 = i.foo(d1, d2); // Base var r5 = i.foo2(b, d2); // Derived var r6 = i.foo3(d1, d1); // Derived var r7 = i.foo4(d1, d2); // Base var r8 = i.foo5(d1, d2); // Derived var r8b = i.foo5(d2, d2); // Derived2 var r9 = i.foo6(); // Derived var r10 = i.foo7(d1); // Base var r11 = i.foo8(); // Base
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithConstraintsTypeArgumentInference2.ts
TypeScript
// Generic call with parameters of T and U, U extends T, no parameter of type U function foo<T, U extends T>(t: T) { var u: U; return u; } var r = foo(1); // ok var r2 = foo(null); // {} var r3 = foo(new Object()); // {} var r4 = foo<Date, Date>(1); // error var r5 = foo<Date, Date>(new Date()); // no error
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithConstructorTypedArguments5.ts
TypeScript
// Generic call with parameter of object type with member of function type of n args passed object whose associated member is call signature with n+1 args function foo<T, U>(arg: { cb: new(t: T) => U }) { return new arg.cb(null); } var arg: { cb: new<T>(x: T) => string }; var r = foo(arg); // {} // more args not allowed var arg2: { cb: new <T>(x: T, y: T) => string }; var r2 = foo(arg2); // error var arg3: { cb: new (x: string, y: number) => string }; var r3 = foo(arg3); // error function foo2<T, U>(arg: { cb: new(t: T, t2: T) => U }) { return new arg.cb(null, null); } // fewer args ok var r4 = foo(arg); // {} var arg4: { cb: new (x: string) => string }; var r6 = foo(arg4); // string var arg5: { cb: new () => string }; var r7 = foo(arg5); // string
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithFunctionTypedArguments.ts
TypeScript
// Generic functions used as arguments for function typed parameters are not used to make inferences from // Using function arguments, no errors expected function foo<T>(x: (a: T) => T) { return x(null); } var r = foo(<U>(x: U) => ''); // {} var r2 = foo<string>(<U>(x: U) => ''); // string var r3 = foo(x => ''); // {} function foo2<T, U>(x: T, cb: (a: T) => U) { return cb(x); } var r4 = foo2(1, function <Z>(a: Z) { return '' }); // string, contextual signature instantiation is applied to generic functions var r5 = foo2(1, (a) => ''); // string var r6 = foo2<string, number>('', <Z>(a: Z) => 1); function foo3<T, U>(x: T, cb: (a: T) => U, y: U) { return cb(x); } var r7 = foo3(1, <Z>(a: Z) => '', ''); // string var r8 = foo3(1, function (a) { return '' }, 1); // error var r9 = foo3<number, string>(1, (a) => '', ''); // string function other<T, U>(t: T, u: U) { var r10 = foo2(1, (x: T) => ''); // error var r10 = foo2(1, (x) => ''); // string var r11 = foo3(1, (x: T) => '', ''); // error var r11b = foo3(1, (x: T) => '', 1); // error var r12 = foo3(1, function (a) { return '' }, 1); // error }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithFunctionTypedArguments2.ts
TypeScript
// Generic functions used as arguments for function typed parameters are not used to make inferences from // Using construct signature arguments, no errors expected function foo<T>(x: new(a: T) => T) { return new x(null); } interface I { new <T>(x: T): T; } interface I2<T> { new (x: T): T; } var i: I; var i2: I2<string>; var a: { new <T>(x: T): T; } var r = foo(i); // any var r2 = foo<string>(i); // string var r3 = foo(i2); // string var r3b = foo(a); // any function foo2<T, U>(x: T, cb: new(a: T) => U) { return new cb(x); } var r4 = foo2(1, i2); // error var r4b = foo2(1, a); // any var r5 = foo2(1, i); // any var r6 = foo2<string, string>('', i2); // string function foo3<T, U>(x: T, cb: new(a: T) => U, y: U) { return new cb(x); } var r7 = foo3(null, i, ''); // any var r7b = foo3(null, a, ''); // any var r8 = foo3(1, i2, 1); // error var r9 = foo3<string, string>('', i2, ''); // string
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithFunctionTypedArguments3.ts
TypeScript
// No inference is made from function typed arguments which have multiple call signatures var a: { (x: boolean): boolean; (x: string): any; } function foo4<T, U>(cb: (x: T) => U) { var u: U; return u; } var r = foo4(a); // T is {} (candidates boolean and string), U is any (candidates any and boolean) var b: { <T>(x: boolean): T; <T>(x: T): any; } var r2 = foo4(b); // T is {} (candidates boolean and {}), U is any (candidates any and {})
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithFunctionTypedArguments4.ts
TypeScript
// No inference is made from function typed arguments which have multiple call signatures class C { foo: string } class D { bar: string } var a: { new(x: boolean): C; new(x: string): D; } function foo4<T, U>(cb: new(x: T) => U) { var u: U; return u; } var r = foo4(a); // T is {} (candidates boolean and string), U is {} (candidates C and D) var b: { new<T>(x: boolean): T; new<T>(x: T): any; } var r2 = foo4(b); // T is {} (candidates boolean and {}), U is any (candidates any and {})
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithFunctionTypedArguments5.ts
TypeScript
// Generic call with parameter of object type with member of function type of n args passed object whose associated member is call signature with n+1 args function foo<T, U>(arg: { cb: (t: T) => U }) { return arg.cb(null); } var arg = { cb: <T>(x: T) => '' }; var r = foo(arg); // {} // more args not allowed var r2 = foo({ cb: <T>(x: T, y: T) => '' }); // error var r3 = foo({ cb: (x: string, y: number) => '' }); // error function foo2<T, U>(arg: { cb: (t: T, t2: T) => U }) { return arg.cb(null, null); } // fewer args ok var r4 = foo(arg); // {} var r5 = foo({ cb: <T>(x: T) => '' }); // {} var r6 = foo({ cb: (x: string) => '' }); // string var r7 = foo({ cb: () => '' }); // string
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithGenericSignatureArguments.ts
TypeScript
// When a function expression is inferentially typed (section 4.9.3) and a type assigned to a parameter in that expression references type parameters for which inferences are being made, // the corresponding inferred type arguments to become fixed and no further candidate inferences are made for them. function foo<T>(a: (x: T) => T, b: (x: T) => T) { var r: (x: T) => T; return r; } //var r1 = foo((x: number) => 1, (x: string) => ''); // error var r1b = foo((x) => 1, (x) => ''); // {} => {} var r2 = foo((x: Object) => null, (x: string) => ''); // Object => Object var r3 = foo((x: number) => 1, (x: Object) => null); // number => number var r3ii = foo((x: number) => 1, (x: number) => 1); // number => number var a: { x: number; y?: number; }; var b: { x: number; z?: number; }; var r4 = foo((x: typeof a) => a, (x: typeof b) => b); // typeof a => typeof a var r5 = foo((x: typeof b) => b, (x: typeof a) => a); // typeof b => typeof b function other<T>(x: T) { var r6 = foo((a: T) => a, (b: T) => b); // T => T var r6b = foo((a) => a, (b) => b); // {} => {} } function other2<T extends Date>(x: T) { var r7 = foo((a: T) => a, (b: T) => b); // T => T var r7b = foo((a) => a, (b) => b); // {} => {} var r8 = r7(null); // BUG 835518 //var r9 = r7(new Date()); } function foo2<T extends Date>(a: (x: T) => T, b: (x: T) => T) { var r: (x: T) => T; return r; } function other3<T extends RegExp>(x: T) { var r8 = foo2((a: Date) => a, (b: Date) => b); // Date => Date }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithGenericSignatureArguments2.ts
TypeScript
// When a function expression is inferentially typed (section 4.9.3) and a type assigned to a parameter in that expression references type parameters for which inferences are being made, // the corresponding inferred type arguments to become fixed and no further candidate inferences are made for them. module onlyT { function foo<T>(a: (x: T) => T, b: (x: T) => T) { var r: (x: T) => T; return r; } var r1: (x: {}) => {} = foo((x: number) => 1, (x: string) => ''); function other2<T extends Date>(x: T) { var r7 = foo((a: T) => a, (b: T) => b); // T => T // BUG 835518 var r9 = r7(new Date()); // should be ok var r10 = r7(1); // error } function foo2<T extends Date>(a: (x: T) => T, b: (x: T) => T) { var r: (x: T) => T; return r; } function other3<T extends RegExp>(x: T) { var r7 = foo2((a: T) => a, (b: T) => b); // error var r7b = foo2((a) => a, (b) => b); // valid, T is inferred to be Date } enum E { A } enum F { A } function foo3<T>(x: T, a: (x: T) => T, b: (x: T) => T) { var r: (x: T) => T; return r; } var r7 = foo3(E.A, (x) => E.A, (x) => F.A); // error } module TU { function foo<T, U>(a: (x: T) => T, b: (x: U) => U) { var r: (x: T) => T; return r; } var r1: (x: {}) => {} = foo((x: number) => 1, (x: string) => ''); function other2<T extends Date>(x: T) { var r7 = foo((a: T) => a, (b: T) => b); var r9 = r7(new Date()); var r10 = r7(1); } function foo2<T extends Date, U extends Date>(a: (x: T) => T, b: (x: U) => U) { var r: (x: T) => T; return r; } function other3<T extends RegExp>(x: T) { var r7 = foo2((a: T) => a, (b: T) => b); var r7b = foo2((a) => a, (b) => b); } enum E { A } enum F { A } function foo3<T>(x: T, a: (x: T) => T, b: (x: U) => U) { var r: (x: T) => T; return r; } var r7 = foo3(E.A, (x) => E.A, (x) => F.A); }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithGenericSignatureArguments3.ts
TypeScript
// When a function expression is inferentially typed (section 4.9.3) and a type assigned to a parameter in that expression references type parameters for which inferences are being made, // the corresponding inferred type arguments to become fixed and no further candidate inferences are made for them. function foo<T>(x: T, a: (x: T) => T, b: (x: T) => T) { var r: (x: T) => T; return r; } var r1 = foo('', (x: string) => '', (x: Object) => null); // any => any var r1ii = foo('', (x) => '', (x) => null); // string => string var r2 = foo('', (x: string) => '', (x: Object) => ''); // string => string var r3 = foo(null, (x: Object) => '', (x: string) => ''); // Object => Object var r4 = foo(null, (x) => '', (x) => ''); // any => any var r5 = foo(new Object(), (x) => '', (x) => ''); // Object => Object enum E { A } enum F { A } var r6 = foo(E.A, (x: number) => E.A, (x: F) => F.A); // number => number function foo2<T, U>(x: T, a: (x: T) => U, b: (x: T) => U) { var r: (x: T) => U; return r; } var r8 = foo2('', (x) => '', (x) => null); // string => string var r9 = foo2(null, (x) => '', (x) => ''); // any => any var r10 = foo2(null, (x: Object) => '', (x: string) => ''); // Object => Object var x: (a: string) => boolean; var r11 = foo2(x, (a1: (y: string) => string) => (n: Object) => 1, (a2: (z: string) => string) => 2); // error var r12 = foo2(x, (a1: (y: string) => boolean) => (n: Object) => 1, (a2: (z: string) => boolean) => 2); // error
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithNonSymmetricSubtypes.ts
TypeScript
// generic type argument inference where inference leads to two candidates that are both supertypes of all candidates // we choose the first candidate so the result is dependent on the order of the arguments provided function foo<T>(x: T, y: T) { var r: T; return r; } var a: { x: number; y?: number; }; var b: { x: number; z?: number; }; var r = foo(a, b); // { x: number; y?: number; }; var r2 = foo(b, a); // { x: number; z?: number; }; var x: { x: number; }; var y: { x?: number; }; var r3 = foo(a, x); // { x: number; y?: number; }; var r4 = foo(x, a); // { x: number; }; var r5 = foo(a, y); // { x?: number; }; var r5 = foo(y, a); // { x?: number; }; var r6 = foo(x, y); // { x?: number; }; var r6 = foo(y, x); // { x?: number; }; var s1: (x: Object) => string; var s2: (x: string) => string; var r7 = foo(s1, s2); // (x: Object) => string; var r8 = foo(s2, s1); // (x: string) => string;
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithObjectLiteralArgs.ts
TypeScript
function foo<T>(x: { bar: T; baz: T }) { return x; } var r = foo({ bar: 1, baz: '' }); // error var r2 = foo({ bar: 1, baz: 1 }); // T = number var r3 = foo({ bar: foo, baz: foo }); // T = typeof foo var r4 = foo<Object>({ bar: 1, baz: '' }); // T = Object
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithObjectTypeArgs.ts
TypeScript
class C { private x: string; } class D { private x: string; } class X<T> { x: T; } function foo<T>(t: X<T>, t2: X<T>) { var x: T; return x; } var c1 = new X<C>(); var d1 = new X<D>(); var r = foo(c1, d1); // error var r2 = foo(c1, c1); // ok
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithObjectTypeArgs2.ts
TypeScript
class Base { x: string; } class Derived extends Base { y: string; } class Derived2 extends Base { z: string; } // returns {}[] function f<T extends Base, U extends Base>(a: { x: T; y: U }) { return [a.x, a.y]; } var r = f({ x: new Derived(), y: new Derived2() }); // {}[] var r2 = f({ x: new Base(), y: new Derived2() }); // {}[] function f2<T extends Base, U extends Base>(a: { x: T; y: U }) { return (x: T) => a.y; } var r3 = f2({ x: new Derived(), y: new Derived2() }); // Derived => Derived2 interface I<T, U> { x: T; y: U; } var i: I<Base, Derived>; var r4 = f2(i); // Base => Derived
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithObjectTypeArgsAndConstraints.ts
TypeScript
// Generic call with constraints infering type parameter from object member properties // No errors expected class C { x: string; } class D { x: string; y: string; } class X<T> { x: T; } function foo<T extends { x: string }>(t: X<T>, t2: X<T>) { var x: T; return x; } var c1 = new X<C>(); var d1 = new X<D>(); var r = foo(c1, d1); var r2 = foo(c1, c1); function foo2<T extends C>(t: X<T>, t2: X<T>) { var x: T; return x; } var r = foo2(c1, d1); var r2 = foo2(c1, c1);
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithObjectTypeArgsAndConstraints2.ts
TypeScript
// Generic call with constraints infering type parameter from object member properties // No errors expected class Base { x: string; } class Derived extends Base { y: string; } function f<T extends Base>(x: { foo: T; bar: T }) { var r: T; return r; } var r = f({ foo: new Base(), bar: new Derived() }); var r2 = f({ foo: new Derived(), bar: new Derived() }); interface I<T> { a: T; } function f2<T extends Base>(x: I<T>) { var r: T; return r; } var i: I<Derived>; var r3 = f2(i); function f3<T extends Base>(x: T, y: (a: T) => T) { return y(null); } var r4 = f3(new Base(), x => x); var r5 = f3(new Derived(), x => x); var r6 = f3(null, null); // any var r7 = f3(null, x => x); // any
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithObjectTypeArgsAndConstraints3.ts
TypeScript
// Generic call with constraints infering type parameter from object member properties class Base { x: string; } class Derived extends Base { y: string; } class Derived2 extends Base { z: string; } function f<T extends Base>(a: { x: T; y: T }) { var r: T; return r; } var r1 = f({ x: new Derived(), y: new Derived2() }); // error because neither is supertype of the other function f2<T extends Base, U extends { x: T; y: T }>(a: U) { var r: T; return r; } var r2 = f2({ x: new Derived(), y: new Derived2() }); // ok var r3 = f2({ x: new Derived(), y: new Derived2() }); // ok function f3<T extends Base>(y: (a: T) => T, x: T) { return y(null); } // all ok - second argument is processed before x is fixed var r4 = f3(x => x, new Base()); var r5 = f3(x => x, new Derived()); var r6 = f3(x => x, null);
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithObjectTypeArgsAndConstraints4.ts
TypeScript
// Generic call with constraints infering type parameter from object member properties class C { x: string; } class D { x: string; y: string; } function foo<T, U extends T>(t: T, t2: U) { return (x: T) => t2; } var c: C; var d: D; var r = foo(c, d); var r2 = foo(d, c); // error because C does not extend D var r3 = foo(c, { x: '', foo: c }); var r4 = foo(null, null); var r5 = foo({}, null); var r6 = foo(null, {}); var r7 = foo({}, {}); var r8 = foo(() => { }, () => { }); var r9 = foo(() => { }, () => 1); function other<T, U extends T>() { var r4 = foo(c, d); var r5 = foo<T, U>(c, d); // error }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithObjectTypeArgsAndConstraints5.ts
TypeScript
// Generic call with constraints infering type parameter from object member properties class C { x: string; } class D { x: string; y: string; } function foo<T, U extends T>(t: T, t2: U) { return (x: T) => t2; } var c: C; var d: D; var r2 = foo(d, c); // the constraints are self-referencing, no downstream error var r9 = foo(() => 1, () => { }); // the constraints are self-referencing, no downstream error function other<T, U extends T>() { var r5 = foo<T, U>(c, d); // error }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithObjectTypeArgsAndIndexers.ts
TypeScript
// Type inference infers from indexers in target type, no errors expected function foo<T>(x: T) { return x; } var a: { [x: string]: Object; [x: number]: Date; }; var r = foo(a); function other<T extends Date>(arg: T) { var b: { [x: string]: Object; [x: number]: T }; var r2 = foo(b); var d = r2[1]; var e = r2['1']; }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithObjectTypeArgsAndIndexersErrors.ts
TypeScript
// Type inference infers from indexers in target type, error cases function foo<T>(x: T) { return x; } function other<T>(arg: T) { var b: { [x: string]: Object; [x: number]: T; // ok, T is a subtype of Object because its apparent type is {} }; var r2 = foo(b); // T } function other3<T extends U, U extends Date>(arg: T) { var b: { [x: string]: Object; [x: number]: T; }; var r2 = foo(b); var d = r2[1]; var e = r2['1']; var u: U = r2[1]; // ok }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithObjectTypeArgsAndInitializers.ts
TypeScript
// Generic typed parameters with initializers function foo<T>(x: T = null) { return x; } // ok function foo2<T>(x: T = undefined) { return x; } // ok function foo3<T extends Number>(x: T = 1) { } // error function foo4<T, U extends T>(x: T, y: U = x) { } // error function foo5<T, U extends T>(x: U, y: T = x) { } // ok function foo6<T, U extends T, V extends U>(x: T, y: U, z: V = y) { } // error function foo7<T, U extends T, V extends U>(x: V, y: U = x) { } // should be ok
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithObjectTypeArgsAndNumericIndexer.ts
TypeScript
// Type inference infers from indexers in target type, no errors expected function foo<T>(x: T) { return x; } var a: { [x: number]: Date }; var r = foo(a); function other<T>(arg: T) { var b: { [x: number]: T }; var r2 = foo(b); // T } function other2<T extends Date>(arg: T) { var b: { [x: number]: T }; var r2 = foo(b); var d = r2[1]; } function other3<T extends Date, U extends Date>(arg: T) { var b: { [x: number]: T }; var r2 = foo(b); var d = r2[1]; // BUG 821629 //var u: U = r2[1]; // ok } //function other3<T extends U, U extends Date>(arg: T) { // var b: { [x: number]: T }; // var r2 = foo(b); // var d = r2[1]; // // BUG 821629 // //var u: U = r2[1]; // ok //}
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithObjectTypeArgsAndStringIndexer.ts
TypeScript
// Type inference infers from indexers in target type, no errors expected function foo<T>(x: T) { return x; } var a: { [x: string]: Date }; var r = foo(a); function other<T>(arg: T) { var b: { [x: string]: T }; var r2 = foo(b); // T } function other2<T extends Date>(arg: T) { var b: { [x: string]: T }; var r2 = foo(b); var d: Date = r2['hm']; // ok } function other3<T extends Date, U extends Date>(arg: T) { var b: { [x: string]: T }; var r2 = foo(b); var d: Date = r2['hm']; // ok // BUG 821629 //var u: U = r2['hm']; // ok } //function other3<T extends U, U extends Date>(arg: T) { // var b: { [x: string]: T }; // var r2 = foo(b); // var d: Date = r2['hm']; // ok // // BUG 821629 // //var u: U = r2['hm']; // ok //}
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithOverloadedConstructorTypedArguments.ts
TypeScript
// Function typed arguments with multiple signatures must be passed an implementation that matches all of them // Inferences are made quadratic-pairwise to and from these overload sets module NonGenericParameter { var a: { new(x: boolean): boolean; new(x: string): string; } function foo4(cb: typeof a) { return new cb(null); } var r = foo4(a); var b: { new <T>(x: T): T }; var r2 = foo4(b); } module GenericParameter { function foo5<T>(cb: { new(x: T): string; new(x: number): T }) { return cb; } var a: { new (x: boolean): string; new (x: number): boolean; } var r5 = foo5(a); // new{} => string; new(x:number) => {} var b: { new<T>(x: T): string; new<T>(x: number): T; } var r7 = foo5(b); // new any => string; new(x:number) => any function foo6<T>(cb: { new(x: T): string; new(x: T, y?: T): string }) { return cb; } var r8 = foo6(a); // error var r9 = foo6(b); // new any => string; new(x:any, y?:any) => string function foo7<T>(x:T, cb: { new(x: T): string; new(x: T, y?: T): string }) { return cb; } var r13 = foo7(1, b); // new any => string; new(x:any, y?:any) => string var c: { new <T>(x: T): string; <T>(x: number): T; } var c2: { new <T>(x: T): string; new<T>(x: number): T; } var r14 = foo7(1, c); // new any => string; new(x:any, y?:any) => string var r15 = foo7(1, c2); // new any => string; new(x:any, y?:any) => string }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithOverloadedConstructorTypedArguments2.ts
TypeScript
// Function typed arguments with multiple signatures must be passed an implementation that matches all of them // Inferences are made quadratic-pairwise to and from these overload sets module NonGenericParameter { var a: { new(x: boolean): boolean; new(x: string): string; } function foo4(cb: typeof a) { return cb; } var b: { new <T, U>(x: T): U } var r3 = foo4(b); // ok } module GenericParameter { function foo5<T>(cb: { new(x: T): string; new(x: number): T }) { return cb; } var a: { new <T>(x: T): T }; var r6 = foo5(a); // ok function foo6<T>(cb: { new(x: T): string; new(x: T, y?: T): string }) { return cb; } var b: { new <T>(x: T, y: T): string }; var r10 = foo6(b); // error function foo7<T>(x:T, cb: { new(x: T): string; new(x: T, y?: T): string }) { return cb; } var r13 = foo7(1, a); // ok var c: { new<T>(x: T): number; new<T>(x: number): T; } var r14 = foo7(1, c); // ok }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithOverloadedFunctionTypedArguments.ts
TypeScript
// Function typed arguments with multiple signatures must be passed an implementation that matches all of them // Inferences are made quadratic-pairwise to and from these overload sets module NonGenericParameter { var a: { (x: boolean): boolean; (x: string): string; } function foo4(cb: typeof a) { return cb; } var r = foo4(a); var r2 = foo4(<T>(x: T) => x); var r4 = foo4(x => x); } module GenericParameter { function foo5<T>(cb: { (x: T): string; (x: number): T }) { return cb; } var r5 = foo5(x => x); // any => string (+1 overload) [inferences are made for T, but lambda not contextually typed]. T is any var a: { <T>(x: T): string; <T>(x: number): T; } var r7 = foo5(a); // any => string (+1 overload) function foo6<T>(cb: { (x: T): string; (x: T, y?: T): string }) { return cb; } var r8 = foo6(x => x); // any => string (+1 overload) [inferences are made for T, but lambda not contextually typed]. T is any var r9 = foo6(<T>(x: T) => ''); // any => string (+1 overload) var r11 = foo6(<T>(x: T, y?: T) => ''); // any => string (+1 overload) function foo7<T>(x:T, cb: { (x: T): string; (x: T, y?: T): string }) { return cb; } var r12 = foo7(1, (x) => x); // any => string (+1 overload) [inferences are made for T, but lambda not contextually typed] var r13 = foo7(1, <T>(x: T) => ''); // any => string (+1 overload) [inferences are made for T, but lambda not contextually typed] var a: { <T>(x: T): string; <T>(x: number): T; } var r14 = foo7(1, a); // any => string (+1 overload) [inferences are made for T, but lambda not contextually typed] }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithOverloadedFunctionTypedArguments2.ts
TypeScript
// Function typed arguments with multiple signatures must be passed an implementation that matches all of them // Inferences are made quadratic-pairwise to and from these overload sets module NonGenericParameter { var a: { (x: boolean): boolean; (x: string): string; } function foo4(cb: typeof a) { return cb; } var r3 = foo4(<T, U>(x: T) => { var r: U; return r }); // ok } module GenericParameter { function foo5<T>(cb: { (x: T): string; (x: number): T }) { return cb; } var r6 = foo5(<T>(x: T) => x); // ok function foo6<T>(cb: { (x: T): string; (x: T, y?: T): string }) { return cb; } var r10 = foo6(<T>(x: T, y: T) => ''); // error function foo7<T>(x:T, cb: { (x: T): string; (x: T, y?: T): string }) { return cb; } var r13 = foo7(1, <T>(x: T) => x); // ok var a: { <T>(x: T): number; <T>(x: number): T; } var r14 = foo7(1, a); // ok }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericCallWithTupleType.ts
TypeScript
interface I<T, U> { tuple1: [T, U]; } var i1: I<string, number>; var i2: I<{}, {}>; // no error i1.tuple1 = ["foo", 5]; var e1 = i1.tuple1[0]; // string var e2 = i1.tuple1[1]; // number i1.tuple1 = ["foo", 5, false, true]; var e3 = i1.tuple1[2]; // {} i1.tuple1[3] = { a: "string" }; var e4 = i1.tuple1[3]; // {} i2.tuple1 = ["foo", 5]; i2.tuple1 = ["foo", "bar"]; i2.tuple1 = [5, "bar"]; i2.tuple1 = [{}, {}]; // error i1.tuple1 = [5, "foo"]; i1.tuple1 = [{}, {}]; i2.tuple1 = [{}];
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericClassExpressionInFunction.ts
TypeScript
class A<T> { genericVar: T } function B1<U>() { // class expression can use T return class extends A<U> { } } class B2<V> { anon = class extends A<V> { } } function B3<W>() { return class Inner<TInner> extends A<W> { } } // extends can call B class K extends B1<number>() { namae: string; } class C extends (new B2<number>().anon) { name: string; } let b3Number = B3<number>(); class S extends b3Number<string> { nom: string; } var c = new C(); var k = new K(); var s = new S(); c.genericVar = 12; k.genericVar = 12; s.genericVar = 12;
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericClassWithFunctionTypedMemberArguments.ts
TypeScript
// Generic functions used as arguments for function typed parameters are not used to make inferences from // Using function arguments, no errors expected module ImmediatelyFix { class C<T> { foo<T>(x: (a: T) => T) { return x(null); } } var c = new C<number>(); var r = c.foo(<U>(x: U) => ''); // {} var r2 = c.foo<string>(<U>(x: U) => ''); // string var r3 = c.foo(x => ''); // {} class C2<T> { foo(x: (a: T) => T) { return x(null); } } var c2 = new C2<number>(); var ra = c2.foo(<U>(x: U) => 1); // number var r3a = c2.foo(x => 1); // number } module WithCandidates { class C<T> { foo2<T, U>(x: T, cb: (a: T) => U) { return cb(x); } } var c: C<number>; var r4 = c.foo2(1, function <Z>(a: Z) { return '' }); // string, contextual signature instantiation is applied to generic functions var r5 = c.foo2(1, (a) => ''); // string var r6 = c.foo2<string, number>('', <Z>(a: Z) => 1); // number class C2<T, U> { foo3(x: T, cb: (a: T) => U, y: U) { return cb(x); } } var c2: C2<number, string>; var r7 = c2.foo3(1, <Z>(a: Z) => '', ''); // string var r8 = c2.foo3(1, function (a) { return '' }, ''); // string class C3<T, U> { foo3<T,U>(x: T, cb: (a: T) => U, y: U) { return cb(x); } } var c3: C3<number, string>; function other<T, U>(t: T, u: U) { var r10 = c.foo2(1, (x: T) => ''); // error var r10 = c.foo2(1, (x) => ''); // string var r11 = c3.foo3(1, (x: T) => '', ''); // error var r11b = c3.foo3(1, (x: T) => '', 1); // error var r12 = c3.foo3(1, function (a) { return '' }, 1); // error } }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericClassWithObjectTypeArgsAndConstraints.ts
TypeScript
// Generic call with constraints infering type parameter from object member properties // No errors expected class C { x: string; } class D { x: string; y: string; } class X<T> { x: T; } module Class { class G<T extends { x: string }> { foo<T extends { x: string }>(t: X<T>, t2: X<T>) { var x: T; return x; } } var c1 = new X<C>(); var d1 = new X<D>(); var g: G<{ x: string; y: string }>; var r = g.foo(c1, d1); var r2 = g.foo(c1, c1); class G2<T extends C> { foo2<T extends C>(t: X<T>, t2: X<T>) { var x: T; return x; } } var g2: G2<D>; var r = g2.foo2(c1, d1); var r2 = g2.foo2(c1, c1); } module Interface { interface G<T extends { x: string }> { foo<T extends { x: string }>(t: X<T>, t2: X<T>): T; } var c1 = new X<C>(); var d1 = new X<D>(); var g: G<{ x: string; y: string }>; var r = g.foo(c1, d1); var r2 = g.foo(c1, c1); interface G2<T extends C> { foo2<T extends C>(t: X<T>, t2: X<T>): T; } var g2: G2<D>; var r = g2.foo2(c1, d1); var r2 = g2.foo2(c1, c1); }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericContextualTypes1.ts
TypeScript
// @strict: true // @declaration: true type Box<T> = { value: T }; declare function wrap<A, B>(f: (a: A) => B): (a: A) => B; declare function compose<A, B, C>(f: (a: A) => B, g: (b: B) => C): (a: A) => C; declare function list<T>(a: T): T[]; declare function unlist<T>(a: T[]): T; declare function box<V>(x: V): Box<V>; declare function unbox<W>(x: Box<W>): W; declare function map<T, U>(a: T[], f: (x: T) => U): U[]; declare function identity<T>(x: T): T; declare function zip<A, B>(a: A, b: B): [A, B]; declare function flip<X, Y, Z>(f: (x: X, y: Y) => Z): (y: Y, x: X) => Z; const f00: <A>(x: A) => A[] = list; const f01: <A>(x: A) => A[] = x => [x]; const f02: <A>(x: A) => A[] = wrap(list); const f03: <A>(x: A) => A[] = wrap(x => [x]); const f10: <T>(x: T) => Box<T[]> = compose(a => list(a), b => box(b)); const f11: <T>(x: T) => Box<T[]> = compose(list, box); const f12: <T>(x: Box<T[]>) => T = compose(a => unbox(a), b => unlist(b)); const f13: <T>(x: Box<T[]>) => T = compose(unbox, unlist); const arrayMap = <T, U>(f: (x: T) => U) => (a: T[]) => a.map(f); const arrayFilter = <T>(f: (x: T) => boolean) => (a: T[]) => a.filter(f); const f20: (a: string[]) => number[] = arrayMap(x => x.length); const f21: <A>(a: A[]) => A[][] = arrayMap(x => [x]); const f22: <A>(a: A[]) => A[] = arrayMap(identity); const f23: <A>(a: A[]) => Box<A>[] = arrayMap(value => ({ value })); const f30: (a: string[]) => string[] = arrayFilter(x => x.length > 10); const f31: <T extends Box<number>>(a: T[]) => T[] = arrayFilter(x => x.value > 10); const f40: <A, B>(b: B, a: A) => [A, B] = flip(zip); // Repro from #16293 type fn = <A>(a: A) => A; const fn: fn = a => a;
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericContextualTypes2.ts
TypeScript
// @strict: true // @noEmit: true type LowInfer<T> = T & {}; type PartialAssigner<TContext, TKey extends keyof TContext> = ( context: TContext ) => TContext[TKey]; type PropertyAssigner<TContext> = { [K in keyof TContext]?: PartialAssigner<TContext, K> | TContext[K]; }; type Meta<TContext> = { action: (ctx: TContext) => void } interface AssignAction<TContext> { type: "xstate.assign"; exec: (arg: TContext, meta: Meta<TContext>) => void; } declare function assign<TContext>( assignment: PropertyAssigner<LowInfer<TContext>> ): AssignAction<TContext>; type Config<TContext> = { context: TContext; entry?: AssignAction<TContext>; }; declare function createMachine<TContext>(config: Config<TContext>): void; createMachine<{ count: number }>({ context: { count: 0, }, entry: assign({ count: (ctx: { count: number }) => ++ctx.count, }), });
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericContextualTypes3.ts
TypeScript
// @strict: true // @noEmit: true type LowInfer<T> = T & {}; type PartialAssigner<TContext, TKey extends keyof TContext> = ( context: TContext ) => TContext[TKey]; type PropertyAssigner<TContext> = { [K in keyof TContext]?: PartialAssigner<TContext, K> | TContext[K]; }; type Meta<TContext> = { action: (ctx: TContext) => void } interface AssignAction<TContext> { type: "xstate.assign"; (arg: TContext, meta: Meta<TContext>): void; } declare function assign<TContext>( assignment: PropertyAssigner<LowInfer<TContext>> ): AssignAction<TContext>; type Config<TContext> = { context: TContext; entry?: AssignAction<TContext>; }; declare function createMachine<TContext>(config: Config<TContext>): void; createMachine<{ count: number }>({ context: { count: 0, }, entry: assign({ count: (ctx: { count: number }) => ++ctx.count, }), });
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericFunctionParameters.ts
TypeScript
// @strict: true // @declaration: true declare function f1<T>(cb: <S>(x: S) => T): T; declare function f2<T>(cb: <S extends number>(x: S) => T): T; declare function f3<T>(cb: <S extends Array<S>>(x: S) => T): T; let x1 = f1(x => x); // {} let x2 = f2(x => x); // number let x3 = f3(x => x); // Array<any> // Repro from #19345 declare const s: <R>(go: <S>(ops: { init(): S; }) => R) => R; const x = s(a => a.init()); // x is any, should have been {}
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericInstantiationEquivalentToObjectLiteral.ts
TypeScript
interface Pair<T1, T2> { first: T1; second: T2; } var x: Pair<string, number> var y: { first: string; second: number; } x = y; y = x; declare function f<T, U>(x: Pair<T, U>); declare function f2<T, U>(x: { first: T; second: U; }); f(x); f(y); f2(x); f2(y);
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericObjectRest.ts
TypeScript
// @strict: true // @target: es2015 const a = 'a'; function f1<T extends { a: string, b: number }>(obj: T) { let { ...r0 } = obj; let { a: a1, ...r1 } = obj; let { a: a2, b: b2, ...r2 } = obj; let { 'a': a3, ...r3 } = obj; let { ['a']: a4, ...r4 } = obj; let { [a]: a5, ...r5 } = obj; } const sa = Symbol(); const sb = Symbol(); function f2<T extends { [sa]: string, [sb]: number }>(obj: T) { let { [sa]: a1, [sb]: b1, ...r1 } = obj; } function f3<T, K1 extends keyof T, K2 extends keyof T>(obj: T, k1: K1, k2: K2) { let { [k1]: a1, [k2]: a2, ...r1 } = obj; } type Item = { a: string, b: number, c: boolean }; function f4<K1 extends keyof Item, K2 extends keyof Item>(obj: Item, k1: K1, k2: K2) { let { [k1]: a1, [k2]: a2, ...r1 } = obj; }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericRestArity.ts
TypeScript
// Repro from #25559 declare function call<TS extends unknown[]>( handler: (...args: TS) => void, ...args: TS): void; call((x: number, y: number) => x + y); call((x: number, y: number) => x + y, 1, 2, 3, 4, 5, 6, 7);
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericRestArityStrict.ts
TypeScript
// @strict: true // Repro from #25559 declare function call<TS extends unknown[]>( handler: (...args: TS) => void, ...args: TS): void; call((x: number, y: number) => x + y); call((x: number, y: number) => x + y, 1, 2, 3, 4, 5, 6, 7);
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericRestParameters1.ts
TypeScript
// @strict: true // @declaration: true declare let f1: (...x: [number, string, boolean]) => void; declare let f2: (x0: number, x1: string, x2: boolean) => void; f1 = f2; f2 = f1; declare const t3: [number, string, boolean]; declare const t2: [string, boolean]; declare const t1: [boolean]; declare const t0: []; declare const ns: [number, string]; declare const sn: [string, number]; f1(42, "hello", true); f1(t3[0], t3[1], t3[2]); f1(...t3); f1(42, ...t2); f1(42, "hello", ...t1); f1(42, "hello", true, ...t0); f1(ns[0], ns[1], true); f1(...ns, true); // FIXME: Error, since ...ns is considered as string|number here f2(42, "hello", true); f2(t3[0], t3[1], t3[2]); f2(...t3); f2(42, ...t2); f2(42, "hello", ...t1); f2(42, "hello", true, ...t0); f2(ns[0], ns[1], true); f2(...ns, true); // FIXME: Error, since ...ns is considered as string|number here declare function f10<T extends unknown[]>(...args: T): T; const x10 = f10(42, "hello", true); // [number, string, boolean] const x11 = f10(42, "hello"); // [number, string] const x12 = f10(42); // [number] const x13 = f10(); // [] const x14 = f10(...t3); // [number, string, boolean] const x15 = f10(42, ...t2); // [number, string, boolean] const x16 = f10(42, "hello", ...t1); // [number, string, boolean] const x17 = f10(42, "hello", true, ...t0); // [number, string, boolean] const x18 = f10(...ns, true); // (string | number | boolean)[] function g10<U extends string[], V extends [number, number]>(u: U, v: V) { let x1 = f10(...u); // U let x2 = f10(...v); // V let x3 = f10(1, ...u); // [number, ...string[]] let x4 = f10(...u, ...v); // (string | number)[] } declare function f11<T extends (string | number | boolean)[]>(...args: T): T; const z10 = f11(42, "hello", true); // [42, "hello", true] const z11 = f11(42, "hello"); // [42, "hello"] const z12 = f11(42); // [42] const z13 = f11(); // [] const z14 = f11(...t3); // [number, string, boolean] const z15 = f11(42, ...t2); // [42, string, boolean] const z16 = f11(42, "hello", ...t1); // [42, "hello", boolean] const z17 = f11(42, "hello", true, ...t0); // [42, "hello", true] const z18 = f11(...ns, true); // (string | number | true)[] function g11<U extends string[], V extends [number, number]>(u: U, v: V) { let x1 = f11(...u); // U let x2 = f11(...v); // V let x3 = f11(1, ...u); // [1, ...string[]] let x4 = f11(...u, ...v); // (string | number)[] } function call<T extends unknown[], U>(f: (...args: T) => U, ...args: T) { return f(...args); } function callr<T extends unknown[], U>(args: T, f: (...args: T) => U) { return f(...args); } declare function f15(a: string, b: number): string | number; declare function f16<A, B>(a: A, b: B): A | B; let x20 = call((x, y) => x + y, 10, 20); // number let x21 = call((x, y) => x + y, 10, "hello"); // string let x22 = call(f15, "hello", 42); // string | number let x23 = call(f16, "hello", 42); // unknown let x24 = call<[string, number], string | number>(f16, "hello", 42); // string | number let x30 = callr(sn, (x, y) => x + y); // string let x31 = callr(sn, f15); // string | number let x32 = callr(sn, f16); // string | number function bind<T, U extends unknown[], V>(f: (x: T, ...rest: U) => V, x: T) { return (...rest: U) => f(x, ...rest); } declare const f20: (x: number, y: string, z: boolean) => string[]; const f21 = bind(f20, 42); // (y: string, z: boolean) => string[] const f22 = bind(f21, "hello"); // (z: boolean) => string[] const f23 = bind(f22, true); // () => string[] f20(42, "hello", true); f21("hello", true); f22(true); f23(); declare const g20: (x: number, y?: string, z?: boolean) => string[]; const g21 = bind(g20, 42); // (y: string, z: boolean) => string[] const g22 = bind(g21, "hello"); // (z: boolean) => string[] const g23 = bind(g22, true); // () => string[] g20(42, "hello", true); g20(42, "hello"); g20(42); g21("hello", true); g21("hello"); g21(); g22(true); g22(); g23(); declare function f30<T, U extends ((x: T) => any)[]>(x: T, ...args: U): U; const c30 = f30(42, x => "" + x, x => x + 1); // [(x: number) => string, (x: number) => number] type T01 = Parameters<(x: number, y: string, z: boolean) => void>; type T02 = Parameters<(...args: [number, string, boolean]) => void>; type T03 = ConstructorParameters<new (x: number, y: string, z: boolean) => void>; type T04 = ConstructorParameters<new (...args: [number, string, boolean]) => void>; type T05<T> = Parameters<(...args: T[]) => void>; type T06<T> = ConstructorParameters<new (...args: []) => void>; type T07<T extends any[]> = Parameters<(...args: T) => void>; type T08<T extends any[]> = ConstructorParameters<new (...args: T) => void>; type T09 = Parameters<Function>; type Record1 = { move: [number, 'left' | 'right']; jump: [number, 'up' | 'down']; stop: string; done: []; } type EventType<T> = { emit<K extends keyof T = keyof T>(e: K, ...payload: T[K] extends any[] ? T[K] : [T[K]]): void; } declare var events: EventType<Record1>; events.emit('move', 10, 'left'); events.emit('jump', 20, 'up'); events.emit('stop', 'Bye!'); events.emit('done'); // Repro from #25871 declare var ff1: (... args: any[]) => void; declare var ff2: () => void; declare var ff3: (...args: []) => void; declare var ff4: (a: never) => void; ff1 = ff2; ff1 = ff3; ff1 = ff4; // Error
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericRestParameters2.ts
TypeScript
// @strict: true // @declaration: true declare const t1: [number, string, ...boolean[]]; declare const t2: [string, ...boolean[]]; declare const t3: [...boolean[]]; declare const t4: []; declare let f00: (...x: [number, string, boolean]) => void; declare let f01: (a: number, ...x: [string, boolean]) => void; declare let f02: (a: number, b: string, ...x: [boolean]) => void; declare let f03: (a: number, b: string, c: boolean) => void; declare let f04: (a: number, b: string, c: boolean, ...x: []) => void; declare let f10: (...x: [number, string, ...boolean[]]) => void; declare let f11: (a: number, ...x: [string, ...boolean[]]) => void; declare let f12: (a: number, b: string, ...x: [...boolean[]]) => void; declare let f13: (a: number, b: string, ...c: boolean[]) => void; declare const ns: [number, string]; declare const sn: [string, number]; f10(42, "hello"); f10(42, "hello", true); f10(42, "hello", true, false); f10(t1[0], t1[1], t1[2], t1[3]); f10(...t1); f10(42, ...t2); f10(42, "hello", ...t3); f10(42, "hello", true, ...t4); f10(42, "hello", true, ...t4, false, ...t3); f11(42, "hello"); f11(42, "hello", true); f11(42, "hello", true, false); f11(t1[0], t1[1], t1[2], t1[3]); f11(...t1); f11(42, ...t2); f11(42, "hello", ...t3); f11(42, "hello", true, ...t4); f11(42, "hello", true, ...t4, false, ...t3); f12(42, "hello"); f12(42, "hello", true); f12(42, "hello", true, false); f12(t1[0], t1[1], t1[2], t1[3]); f12(...t1); f12(42, ...t2); f12(42, "hello", ...t3); f12(42, "hello", true, ...t4); f12(42, "hello", true, ...t4, false, ...t3); f13(42, "hello"); f13(42, "hello", true); f13(42, "hello", true, false); f13(t1[0], t1[1], t1[2], t1[3]); f13(...t1); f13(42, ...t2); f13(42, "hello", ...t3); f13(42, "hello", true, ...t4); f13(42, "hello", true, ...t4, false, ...t3); declare const f20: <T extends unknown[]>(...args: T) => T; f20(...t1); f20(42, ...t2); f20(42, "hello", ...t3); f20(42, "hello", ...t2, true); type T01 = Parameters<(x: number, y: string, ...z: boolean[]) => void>; type T02 = Parameters<(...args: [number, string, ...boolean[]]) => void>; type T03 = ConstructorParameters<new (x: number, y: string, ...z: boolean[]) => void>; type T04 = ConstructorParameters<new (...args: [number, string, ...boolean[]]) => void>; type T05<T extends any[]> = Parameters<(x: string, ...args: T) => void>; type T06 = T05<[number, ...boolean[]]>; type P1<T extends Function> = T extends (head: infer A, ...tail: infer B) => any ? { head: A, tail: B } : any[]; type T10 = P1<(x: number, y: string, ...z: boolean[]) => void>; type T11 = P1<(...z: number[]) => void>; type T12 = P1<(x: number, y: number) => void>;
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericRestParameters3.ts
TypeScript
// @strict: true // @declaration: true declare let f1: (x: string, ...args: [string] | [number, boolean]) => void; declare let f2: (x: string, y: string) => void; declare let f3: (x: string, y: number, z: boolean) => void; declare let f4: (...args: [string, string] | [string, number, boolean]) => void; declare const t1: [string] | [number, boolean]; declare const t2: readonly [string] | [number, boolean]; declare const t3: [string] | readonly [number, boolean]; declare const t4: readonly [string] | readonly [number, boolean]; f1("foo", "abc"); f1("foo", 10, true); f1("foo", ...t1); f1("foo", ...t2); f1("foo", ...t3); f1("foo", ...t4); f1("foo", 10); // Error f1("foo"); // Error f2 = f1; f3 = f1; f4 = f1; f1 = f2; // Error f1 = f3; // Error f1 = f4; // Repro from #26110 interface CoolArray<E> extends Array<E> { hello: number; } declare function foo<T extends any[]>(cb: (...args: T) => void): void; foo<CoolArray<any>>(); // Error foo<CoolArray<any>>(100); // Error foo<CoolArray<any>>(foo); // Error function bar<T extends any[]>(...args: T): T { return args; } let a = bar(10, 20); let b = bar<CoolArray<number>>(10, 20); // Error declare function baz<T>(...args: CoolArray<T>): void; declare const ca: CoolArray<number>; baz(); // Error baz(1); // Error baz(1, 2); // Error baz(...ca); // Error // Repro from #26491 declare function hmm<A extends [] | [number, string]>(...args: A): void; hmm(); // okay, A = [] hmm(1, "s"); // okay, A = [1, "s"] hmm("what"); // no error? A = [] | [number, string] ? // Repro from #35066 declare function foo2(...args: string[] | number[]): void; let x2: ReadonlyArray<string> = ["hello"]; foo2(...x2); // Repros from #47754 type RestParams = [y: string] | [y: number]; type Signature = (x: string, ...rest: RestParams) => void; type MergedParams = Parameters<Signature>; // [x: string, y: string] | [x: string, y: number] declare let ff1: (...rest: [string, string] | [string, number]) => void; declare let ff2: (x: string, ...rest: [string] | [number]) => void; ff1 = ff2; ff2 = ff1; function ff3<A extends unknown[]>(s1: (...args: [x: string, ...rest: A | [number]]) => void, s2: (x: string, ...rest: A | [number]) => void) { s1 = s2; s2 = s1; }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericSetterInClassType.ts
TypeScript
// @target: esnext module Generic { class C<T> { get y(): T { return 1 as never; } set y(v) { } } var c = new C<number>(); c.y = c.y; class Box<T> { #value!: T; get value() { return this.#value; } set value(value) { this.#value = value; } } new Box<number>().value = 3; }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericSetterInClassTypeJsDoc.ts
TypeScript
// @target: esnext // @lib: esnext // @declaration: true // @allowJs: true // @checkJs: true // @filename: genericSetterInClassTypeJsDoc.js // @outFile: genericSetterInClassTypeJsDoc-out.js /** * @template T */ class Box { #value; /** @param {T} initialValue */ constructor(initialValue) { this.#value = initialValue; } /** @type {T} */ get value() { return this.#value; } set value(value) { this.#value = value; } } new Box(3).value = 3;
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/genericTypeAliases.ts
TypeScript
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> }; type Bar<U> = U | { x: Bar<U> }; // Deeply instantiated generics var x: Foo<string>; var y: Bar<string>; x = y; y = x; x = "string"; x = { x: "hello" }; x = { x: { x: "world" } }; var z: Foo<number>; z = 42; z = { x: 42 }; z = { x: { x: 42 } }; type Strange<T> = string; // Type parameter not used var s: Strange<number>; s = "hello"; interface AB<A, B> { a: A; b: B; } type Pair<T> = AB<T, T>; interface TaggedPair<T> extends Pair<T> { tag: string; } var p: TaggedPair<number>; p.a = 1; p.b = 2; p.tag = "test"; function f<A>() { type Foo<T> = T | { x: Foo<T> }; var x: Foo<A[]>; return x; } function g<B>() { type Bar<U> = U | { x: Bar<U> }; var x: Bar<B[]>; return x; } // Deeply instantiated generics var a = f<string>(); var b = g<string>(); a = b;
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/getSetAccessorContextualTyping.ts
TypeScript
// @target: es5 // In the body of a get accessor with no return type annotation, // if a matching set accessor exists and that set accessor has a parameter type annotation, // return expressions are contextually typed by the type given in the set accessor's parameter type annotation. class C { set X(x: number) { } get X() { return "string"; // Error; get contextual type by set accessor parameter type annotation } set Y(y) { } get Y() { return true; } set W(w) { } get W(): boolean { return true; } set Z(z: number) { } get Z() { return 1; } }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/globalAugmentationModuleResolution.ts
TypeScript
// @traceResolution: true // @fileName: a.ts export { }; declare global { var x: number; }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/globalMergeWithCommonJSAssignmentDeclaration.ts
TypeScript
// @noEmit: true // @allowJs: true // @checkJs: true // @Filename: bug27099.js window.name = 1; window.console; // should not have error: Property 'console' does not exist on type 'typeof window'. module.exports = 'anything';
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/globalThisAmbientModules.ts
TypeScript
declare module "ambientModule" { export type typ = 1 export var val: typ } namespace valueModule { export var val = 1 } namespace namespaceModule { export type typ = 1 } // should error type GlobalBad1 = (typeof globalThis)["\"ambientModule\""] type GlobalOk1 = (typeof globalThis)["valueModule"] type GlobalOk2 = globalThis.namespaceModule.typ const bad1: (typeof globalThis)["\"ambientModule\""] = 'ambientModule'
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/globalThisBlockscopedProperties.ts
TypeScript
// @noImplicitAny: true var x = 1 const y = 2 let z = 3 globalThis.x // ok globalThis.y // should error, no property 'y' globalThis.z // should error, no property 'z' globalThis['x'] // ok globalThis['y'] // should error, no property 'y' globalThis['z'] // should error, no property 'z' globalThis.Float64Array // ok globalThis.Infinity // ok declare let test1: (typeof globalThis)['x'] // ok declare let test2: (typeof globalThis)['y'] // error declare let test3: (typeof globalThis)['z'] // error declare let themAll: keyof typeof globalThis
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/globalThisCollision.ts
TypeScript
// @allowJs: true // @checkJs: true // @noEmit: true // @filename: globalThisCollision.js var globalThis;
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/globalThisGlobalExportAsGlobal.ts
TypeScript
// https://github.com/microsoft/TypeScript/issues/33754 declare global { export { globalThis as global } }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/globalThisPropertyAssignment.ts
TypeScript
// @allowJs: true // @checkJs: true // @noEmit: true // @Filename: globalThisPropertyAssignment.js this.x = 1 var y = 2 // should work in JS window.z = 3 // should work in JS (even though it's a secondary declaration) globalThis.alpha = 4
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/globalThisReadonlyProperties.ts
TypeScript
globalThis.globalThis = 1 as any // should error var x = 1 const y = 2 globalThis.x = 3 globalThis.y = 4 // should error
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/globalThisTypeIndexAccess.ts
TypeScript
declare const w_e: (typeof globalThis)["globalThis"]
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/globalThisUnknown.ts
TypeScript
declare let win: Window & typeof globalThis; // this access should be an error win.hi // these two should be fine, with type any this.hi globalThis.hi // element access is always ok without noImplicitAny win['hi'] this['hi'] globalThis['hi']
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/globalThisUnknownNoImplicitAny.ts
TypeScript
// @noImplicitAny: true declare let win: Window & typeof globalThis; // all accesses should be errors win.hi this.hi globalThis.hi win['hi'] this['hi'] globalThis['hi']
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/globalThisVarDeclaration.ts
TypeScript
// @outFile: output.js // @target: esnext // @lib: esnext, dom // @Filename: b.js // @allowJs: true // @checkJs: true var a = 10; this.a; this.b; globalThis.a; globalThis.b; // DOM access is not supported until the index signature is handled more strictly self.a; self.b; window.a; window.b; top.a; top.b; // @Filename: actual.ts var b = 10; this.a; this.b; globalThis.a; globalThis.b; // same here -- no DOM access to globalThis yet self.a; self.b; window.a; window.b; top.a; top.b;
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/grammarAmbiguities.ts
TypeScript
function f(n: any) { return null; } function g<A, B>(x: any) { return null; } interface A { } interface B { } var A, B; f(g<A, B>(7)); f(g < A, B > 7); // Should error f(g < A, B > +(7)); // Should error
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/heterogeneousArrayLiterals.ts
TypeScript
// type of an array is the best common type of its elements (plus its contextual type if it exists) var a = [1, '']; // {}[] var b = [1, null]; // number[] var c = [1, '', null]; // {}[] var d = [{}, 1]; // {}[] var e = [{}, Object]; // {}[] var f = [[], [1]]; // number[][] var g = [[1], ['']]; // {}[] var h = [{ foo: 1, bar: '' }, { foo: 2 }]; // {foo: number}[] var i = [{ foo: 1, bar: '' }, { foo: '' }]; // {}[] var j = [() => 1, () => '']; // {}[] var k = [() => 1, () => 1]; // { (): number }[] var l = [() => 1, () => null]; // { (): any }[] var m = [() => 1, () => '', () => null]; // { (): any }[] var n = [[() => 1], [() => '']]; // {}[] class Base { foo: string; } class Derived extends Base { bar: string; } class Derived2 extends Base { baz: string; } var base: Base; var derived: Derived; var derived2: Derived2; module Derived { var h = [{ foo: base, basear: derived }, { foo: base }]; // {foo: Base}[] var i = [{ foo: base, basear: derived }, { foo: derived }]; // {foo: Derived}[] var j = [() => base, () => derived]; // { {}: Base } var k = [() => base, () => 1]; // {}[]~ var l = [() => base, () => null]; // { (): any }[] var m = [() => base, () => derived, () => null]; // { (): any }[] var n = [[() => base], [() => derived]]; // { (): Base }[] var o = [derived, derived2]; // {}[] var p = [derived, derived2, base]; // Base[] var q = [[() => derived2], [() => derived]]; // {}[] } module WithContextualType { // no errors var a: Base[] = [derived, derived2]; var b: Derived[] = [null]; var c: Derived[] = []; var d: { (): Base }[] = [() => derived, () => derived2]; } function foo<T, U>(t: T, u: U) { var a = [t, t]; // T[] var b = [t, null]; // T[] var c = [t, u]; // {}[] var d = [t, 1]; // {}[] var e = [() => t, () => u]; // {}[] var f = [() => t, () => u, () => null]; // { (): any }[] } function foo2<T extends Base, U extends Derived>(t: T, u: U) { var a = [t, t]; // T[] var b = [t, null]; // T[] var c = [t, u]; // {}[] var d = [t, 1]; // {}[] var e = [() => t, () => u]; // {}[] var f = [() => t, () => u, () => null]; // { (): any }[] var g = [t, base]; // Base[] var h = [t, derived]; // Derived[] var i = [u, base]; // Base[] var j = [u, derived]; // Derived[] } function foo3<T extends Derived, U extends Derived>(t: T, u: U) { var a = [t, t]; // T[] var b = [t, null]; // T[] var c = [t, u]; // {}[] var d = [t, 1]; // {}[] var e = [() => t, () => u]; // {}[] var f = [() => t, () => u, () => null]; // { (): any }[] var g = [t, base]; // Base[] var h = [t, derived]; // Derived[] var i = [u, base]; // Base[] var j = [u, derived]; // Derived[] } function foo4<T extends Base, U extends Base>(t: T, u: U) { var a = [t, t]; // T[] var b = [t, null]; // T[] var c = [t, u]; // BUG 821629 var d = [t, 1]; // {}[] var e = [() => t, () => u]; // {}[] var f = [() => t, () => u, () => null]; // { (): any }[] var g = [t, base]; // Base[] var h = [t, derived]; // Derived[] var i = [u, base]; // Base[] var j = [u, derived]; // Derived[] var k: Base[] = [t, u]; } //function foo3<T extends U, U extends Derived>(t: T, u: U) { // var a = [t, t]; // T[] // var b = [t, null]; // T[] // var c = [t, u]; // {}[] // var d = [t, 1]; // {}[] // var e = [() => t, () => u]; // {}[] // var f = [() => t, () => u, () => null]; // { (): any }[] // var g = [t, base]; // Base[] // var h = [t, derived]; // Derived[] // var i = [u, base]; // Base[] // var j = [u, derived]; // Derived[] //} //function foo4<T extends U, U extends Base>(t: T, u: U) { // var a = [t, t]; // T[] // var b = [t, null]; // T[] // var c = [t, u]; // BUG 821629 // var d = [t, 1]; // {}[] // var e = [() => t, () => u]; // {}[] // var f = [() => t, () => u, () => null]; // { (): any }[] // var g = [t, base]; // Base[] // var h = [t, derived]; // Derived[] // var i = [u, base]; // Base[] // var j = [u, derived]; // Derived[] // var k: Base[] = [t, u]; //}
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/identicalCallSignatures.ts
TypeScript
// Each pair of call signatures in these types have a duplicate signature error. // Identical call signatures should generate an error. interface I { (x): number; (x: any): number; <T>(x: T): T; <U>(x: U): U; // error } interface I2<T> { (x: T): T; (x: T): T; // error } var a: { (x): number; (x: any): number; <T>(x: T): T; <T>(x: T): T; // error }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/identicalCallSignatures2.ts
TypeScript
// Normally it is an error to have multiple overloads with identical signatures in a single type declaration. // Here the multiple overloads come from multiple bases. interface Base<T> { (x: number): string; } interface I extends Base<string>, Base<number> { } interface I2<T> extends Base<string>, Base<number> { }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/identicalCallSignatures3.ts
TypeScript
// Normally it is an error to have multiple overloads with identical signatures in a single type declaration. // Here the multiple overloads come from multiple merged declarations, so we do not report errors. interface I { (x: number): string; } interface I { (x: number): string; } interface I2<T> { (x: number): string; } interface I2<T> { (x: number): string; }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/ifDoWhileStatements.ts
TypeScript
// @allowUnreachableCode: true interface I { id: number; } class C implements I { id: number; name: string; } class C2 extends C { valid: boolean; } class D<T>{ source: T; recurse: D<T>; wrapped: D<D<T>> } function F(x: string): number { return 42; } function F2(x: number): boolean { return x < 42; } module M { export class A { name: string; } export function F2(x: number): string { return x.toString(); } } module N { export class A { id: number; } export function F2(x: number): string { return x.toString(); } } // literals if (true) { } while (true) { } do { }while(true) if (null) { } while (null) { } do { }while(null) if (undefined) { } while (undefined) { } do { }while(undefined) if (0.0) { } while (0.0) { } do { }while(0.0) if ('a string') { } while ('a string') { } do { }while('a string') if ('') { } while ('') { } do { }while('') if (/[a-z]/) { } while (/[a-z]/) { } do { }while(/[a-z]/) if ([]) { } while ([]) { } do { }while([]) if ([1, 2]) { } while ([1, 2]) { } do { }while([1, 2]) if ({}) { } while ({}) { } do { }while({}) if ({ x: 1, y: 'a' }) { } while ({ x: 1, y: 'a' }) { } do { }while({ x: 1, y: 'a' }) if (() => 43) { } while (() => 43) { } do { }while(() => 43) if (new C()) { } while (new C()) { } do { }while(new C()) if (new D<C>()) { } while (new D<C>()) { } do { }while(new D<C>()) // references var a = true; if (a) { } while (a) { } do { }while(a) var b = null; if (b) { } while (b) { } do { }while(b) var c = undefined; if (c) { } while (c) { } do { }while(c) var d = 0.0; if (d) { } while (d) { } do { }while(d) var e = 'a string'; if (e) { } while (e) { } do { }while(e) var f = ''; if (f) { } while (f) { } do { }while(f) var g = /[a-z]/ if (g) { } while (g) { } do { }while(g) var h = []; if (h) { } while (h) { } do { }while(h) var i = [1, 2]; if (i) { } while (i) { } do { }while(i) var j = {}; if (j) { } while (j) { } do { }while(j) var k = { x: 1, y: 'a' }; if (k) { } while (k) { } do { }while(k) function fn(x?: string): I { return null; } if (fn()) { } while (fn()) { } do { }while(fn()) if (fn) { } while (fn) { } do { }while(fn)
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/implementingAnInterfaceExtendingClassWithPrivates.ts
TypeScript
class Foo { private x: string; } interface I extends Foo { y: number; } class Bar implements I { // error } class Bar2 implements I { // error y: number; } class Bar3 implements I { // error x: string; y: number; } class Bar4 implements I { // error private x: string; y: number; }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/implementingAnInterfaceExtendingClassWithPrivates2.ts
TypeScript
class Foo { private x: string; } interface I extends Foo { y: number; } class Bar extends Foo implements I { // ok y: number; } class Bar2 extends Foo implements I { // error x: string; y: number; } class Bar3 extends Foo implements I { // error private x: string; y: number; } // another level of indirection module M { class Foo { private x: string; } class Baz extends Foo { z: number; } interface I extends Baz { y: number; } class Bar extends Foo implements I { // ok y: number; z: number; } class Bar2 extends Foo implements I { // error x: string; y: number; } class Bar3 extends Foo implements I { // error private x: string; y: number; } } // two levels of privates module M2 { class Foo { private x: string; } class Baz extends Foo { private y: number; } interface I extends Baz { z: number; } class Bar extends Foo implements I { // error z: number; } var b: Bar; var r1 = b.z; var r2 = b.x; // error var r3 = b.y; // error class Bar2 extends Foo implements I { // error x: string; z: number; } class Bar3 extends Foo implements I { // error private x: string; z: number; } }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/implementingAnInterfaceExtendingClassWithProtecteds.ts
TypeScript
class Foo { protected x: string; } interface I extends Foo { y: number; } class Bar implements I { // error } class Bar2 implements I { // error y: number; } class Bar3 implements I { // error x: string; y: number; } class Bar4 implements I { // error protected x: string; y: number; } class Bar5 extends Foo implements I { // error } class Bar6 extends Foo implements I { // error protected y: number; } class Bar7 extends Foo implements I { y: number; } class Bar8 extends Foo implements I { x: string; y: number; }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/implementsClause.ts
TypeScript
// @Filename: types.ts export interface Component {} // @Filename: ns.ts import type * as types from './types'; export { types }; // @Filename: index.ts import type * as types from './types'; import * as nestedNamespace from './ns'; class C implements types.Component {} class D implements nestedNamespace.types.Component {}
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importAliasIdentifiers.ts
TypeScript
module moduleA { export class Point { constructor(public x: number, public y: number) { } } } import alias = moduleA; var p: alias.Point; var p: moduleA.Point; var p: { x: number; y: number; }; class clodule { name: string; } module clodule { export interface Point { x: number; y: number; } var Point: Point = { x: 0, y: 0 }; } import clolias = clodule; var p: clolias.Point; var p: clodule.Point; var p: { x: number; y: number; }; function fundule() { return { x: 0, y: 0 }; } module fundule { export interface Point { x: number; y: number; } var Point: Point = { x: 0, y: 0 }; } import funlias = fundule; var p: funlias.Point; var p: fundule.Point; var p: { x: number; y: number; };
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importAliasModuleExports.ts
TypeScript
// @allowJs: true // @checkJs: true // @noEmit: true // @esModuleInterop: true // @filename: mod1.js class Alias { bar() { return 1 } } module.exports = Alias; // @filename: main.js import A from './mod1' A.prototype.foo = 0 A.prototype.func = function() { this._func = 0; } Object.defineProperty(A.prototype, "def", { value: 0 }); new A().bar new A().foo new A().func() new A().def
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importAssertion2.ts
TypeScript
// @declaration: true // @target: es2015 // @module: es2015, commonjs, esnext // @filename: 0.ts export const a = 1; export const b = 2; // @filename: 1.ts export {} from './0' assert { type: "json" } export { a, b } from './0' assert { type: "json" } export * from './0' assert { type: "json" } export * as ns from './0' assert { type: "json" } // @filename: 2.ts export { a, b } from './0' assert {} export { a as c, b as d } from './0' assert { a: "a", b: "b", c: "c" }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importAssertion3.ts
TypeScript
// @declaration: true // @target: es2015 // @module: es2015, esnext // @filename: 0.ts export interface I { } // @filename: 1.ts export type {} from './0' assert { type: "json" } export type { I } from './0' assert { type: "json" } // @filename: 2.ts import type { I } from './0' assert { type: "json" } import type * as foo from './0' assert { type: "json" }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importAttributes2.ts
TypeScript
// @declaration: true // @target: es2015 // @module: es2015, commonjs, esnext // @filename: 0.ts export const a = 1; export const b = 2; // @filename: 1.ts export {} from './0' with { type: "json" } export { a, b } from './0' with { type: "json" } export * from './0' with { type: "json" } export * as ns from './0' with { type: "json" } // @filename: 2.ts export { a, b } from './0' with {} export { a as c, b as d } from './0' with { a: "a", b: "b", c: "c" }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importAttributes3.ts
TypeScript
// @declaration: true // @target: es2015 // @module: es2015, esnext // @filename: 0.ts export interface I { } // @filename: 1.ts export type {} from './0' with { type: "json" } export type { I } from './0' with { type: "json" } // @filename: 2.ts import type { I } from './0' with { type: "json" } import type * as foo from './0' with { type: "json" }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importAttributes6.ts
TypeScript
// @module: nodenext // @filename: mod.mts import * as thing1 from "./mod.mjs" with { field: 0 }; import * as thing2 from "./mod.mjs" with { field: `a` }; import * as thing3 from "./mod.mjs" with { field: /a/g }; import * as thing4 from "./mod.mjs" with { field: ["a"] }; import * as thing5 from "./mod.mjs" with { field: { a: 0 } }; import * as thing6 from "./mod.mjs" with { type: "json", field: 0..toString() };
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importAttributes8.ts
TypeScript
// @module: esnext // @lib: es2015 // @filename: /a.ts export default { a: "a", b: "b", } // @filename: /b.ts import a from "./a" with { a: "a", "b": "b" }; // ok
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importCallExpression1ES2020.ts
TypeScript
// @module: es2020 // @target: es2020 // @filename: 0.ts export function foo() { return "foo"; } // @filename: 1.ts import("./0"); var p1 = import("./0"); p1.then(zero => { return zero.foo(); }) export var p2 = import("./0"); function foo() { const p2 = import("./0"); }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importCallExpression2ES2020.ts
TypeScript
// @module: es2020 // @target: es2020 // @filename: 0.ts export class B { print() { return "I am B"} } // @filename: 2.ts function foo(x: Promise<any>) { x.then(value => { let b = new value.B(); b.print(); }) } foo(import("./0"));
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importCallExpression3ES2020.ts
TypeScript
// @module: es2020 // @target: es2020 // @filename: 0.ts export class B { print() { return "I am B"} } // @filename: 2.ts async function foo() { class C extends (await import("./0")).B {} var c = new C(); c.print(); } foo();
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importCallExpression4ES2020.ts
TypeScript
// @lib: es2020 // @module: es2020 // @target: es2020 // @filename: 0.ts export class B { print() { return "I am B"} } export function foo() { return "foo" } // @filename: 1.ts export function backup() { return "backup"; } // @filename: 2.ts declare var console: any; class C { private myModule = import("./0"); method() { const loadAsync = import ("./0"); this.myModule.then(Zero => { console.log(Zero.foo()); }, async err => { console.log(err); let one = await import("./1"); console.log(one.backup()); }); } }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importCallExpression5ES2020.ts
TypeScript
// @module: es2020 // @target: es2020 // @strictNullChecks: true // @filename: 0.ts export class B { print() { return "I am B"} } export function foo() { return "foo" } // @filename: 1.ts export function backup() { return "backup"; } // @filename: 2.ts declare function bar(): boolean; const specify = bar() ? "./0" : undefined; let myModule = import(specify); let myModule1 = import(undefined); let myModule2 = import(bar() ? "./1" : null); let myModule3 = import(null);
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importCallExpression6ES2020.ts
TypeScript
// @module: es2020 // @target: es2020 // @filename: 0.ts export class B { print() { return "I am B"} } export function foo() { return "foo" } // @filename: 1.ts export function backup() { return "backup"; } // @filename: 2.ts declare function bar(): boolean; const specify = bar() ? "./0" : undefined; let myModule = import(specify); let myModule1 = import(undefined); let myModule2 = import(bar() ? "./1" : null); let myModule3 = import(null);
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importCallExpressionAsyncES2020.ts
TypeScript
// @module: es2020 // @target: es2020 // @filename: test.ts export async function fn() { const req = await import('./test') // ONE } export class cl1 { public async m() { const req = await import('./test') // TWO } } export const obj = { m: async () => { const req = await import('./test') // THREE } } export class cl2 { public p = { m: async () => { const req = await import('./test') // FOUR } } } export const l = async () => { const req = await import('./test') // FIVE }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importCallExpressionAsyncES5AMD.ts
TypeScript
// @module: amd // @target: es5 // @lib: es6 // @filename: test.ts export async function fn() { const req = await import('./test') // ONE } export class cl1 { public async m() { const req = await import('./test') // TWO } } export const obj = { m: async () => { const req = await import('./test') // THREE } } export class cl2 { public p = { m: async () => { const req = await import('./test') // FOUR } } } export const l = async () => { const req = await import('./test') // FIVE }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importCallExpressionAsyncES5CJS.ts
TypeScript
// @module: commonjs // @target: es5 // @lib: es6 // @filename: test.ts export async function fn() { const req = await import('./test') // ONE } export class cl1 { public async m() { const req = await import('./test') // TWO } } export const obj = { m: async () => { const req = await import('./test') // THREE } } export class cl2 { public p = { m: async () => { const req = await import('./test') // FOUR } } } export const l = async () => { const req = await import('./test') // FIVE }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importCallExpressionAsyncES5System.ts
TypeScript
// @module: system // @target: es5 // @lib: es6 // @filename: test.ts export async function fn() { const req = await import('./test') // ONE } export class cl1 { public async m() { const req = await import('./test') // TWO } } export const obj = { m: async () => { const req = await import('./test') // THREE } } export class cl2 { public p = { m: async () => { const req = await import('./test') // FOUR } } } export const l = async () => { const req = await import('./test') // FIVE }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importCallExpressionAsyncES5UMD.ts
TypeScript
// @module: umd // @target: es5 // @lib: es6 // @filename: test.ts export async function fn() { const req = await import('./test') // ONE } export class cl1 { public async m() { const req = await import('./test') // TWO } } export const obj = { m: async () => { const req = await import('./test') // THREE } } export class cl2 { public p = { m: async () => { const req = await import('./test') // FOUR } } } export const l = async () => { const req = await import('./test') // FIVE }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University
crates/swc_ecma_parser/tests/tsc/importCallExpressionAsyncES6AMD.ts
TypeScript
// @module: amd // @target: es6 // @filename: test.ts export async function fn() { const req = await import('./test') // ONE } export class cl1 { public async m() { const req = await import('./test') // TWO } } export const obj = { m: async () => { const req = await import('./test') // THREE } } export class cl2 { public p = { m: async () => { const req = await import('./test') // FOUR } } } export const l = async () => { const req = await import('./test') // FIVE }
willcrichton/ilc-swc
1
Rust
willcrichton
Will Crichton
Brown University