203 lines
6.7 KiB
Plaintext
203 lines
6.7 KiB
Plaintext
=== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithGenericSignatureArguments3.ts ===
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// 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,
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// the corresponding inferred type arguments to become fixed and no further candidate inferences are made for them.
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function foo<T>(x: T, a: (x: T) => T, b: (x: T) => T) {
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>foo : <T>(x: T, a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>T : T
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>x : T
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>T : T
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>a : (x: T) => T
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>x : T
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>T : T
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>T : T
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>b : (x: T) => T
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>x : T
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>T : T
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>T : T
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var r: (x: T) => T;
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>r : (x: T) => T
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>x : T
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>T : T
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>T : T
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return r;
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>r : (x: T) => T
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}
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var r1 = foo('', (x: string) => '', (x: Object) => null); // any => any
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>r1 : (x: any) => any
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>foo('', (x: string) => '', (x: Object) => null) : (x: any) => any
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>foo : <T>(x: T, a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(x: string) => '' : (x: string) => string
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>x : string
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>(x: Object) => null : (x: Object) => any
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>x : Object
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>Object : Object
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var r1ii = foo('', (x) => '', (x) => null); // string => string
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>r1ii : (x: string) => string
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>foo('', (x) => '', (x) => null) : (x: string) => string
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>foo : <T>(x: T, a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(x) => '' : (x: string) => string
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>x : string
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>(x) => null : (x: string) => any
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>x : string
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var r2 = foo('', (x: string) => '', (x: Object) => ''); // string => string
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>r2 : (x: Object) => Object
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>foo('', (x: string) => '', (x: Object) => '') : (x: Object) => Object
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>foo : <T>(x: T, a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(x: string) => '' : (x: string) => string
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>x : string
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>(x: Object) => '' : (x: Object) => string
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>x : Object
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>Object : Object
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var r3 = foo(null, (x: Object) => '', (x: string) => ''); // Object => Object
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>r3 : (x: Object) => Object
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>foo(null, (x: Object) => '', (x: string) => '') : (x: Object) => Object
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>foo : <T>(x: T, a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(x: Object) => '' : (x: Object) => string
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>x : Object
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>Object : Object
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>(x: string) => '' : (x: string) => string
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>x : string
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var r4 = foo(null, (x) => '', (x) => ''); // any => any
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>r4 : (x: any) => any
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>foo(null, (x) => '', (x) => '') : (x: any) => any
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>foo : <T>(x: T, a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>(x) => '' : (x: any) => string
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>x : any
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>(x) => '' : (x: any) => string
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>x : any
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var r5 = foo(new Object(), (x) => '', (x) => ''); // Object => Object
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>r5 : (x: Object) => Object
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>foo(new Object(), (x) => '', (x) => '') : (x: Object) => Object
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>foo : <T>(x: T, a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>new Object() : Object
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>Object : { (): any; (value: any): any; new (value?: any): Object; prototype: Object; getPrototypeOf(o: any): any; getOwnPropertyDescriptor(o: any, p: string): PropertyDescriptor; getOwnPropertyNames(o: any): string[]; create(o: any, properties?: PropertyDescriptorMap): any; defineProperty(o: any, p: string, attributes: PropertyDescriptor): any; defineProperties(o: any, properties: PropertyDescriptorMap): any; seal(o: any): any; freeze(o: any): any; preventExtensions(o: any): any; isSealed(o: any): boolean; isFrozen(o: any): boolean; isExtensible(o: any): boolean; keys(o: any): string[]; }
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>(x) => '' : (x: Object) => string
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>x : Object
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>(x) => '' : (x: Object) => string
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>x : Object
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enum E { A }
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>E : E
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>A : E
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enum F { A }
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>F : F
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>A : F
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var r6 = foo(E.A, (x: number) => E.A, (x: F) => F.A); // number => number
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>r6 : (x: number) => number
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>foo(E.A, (x: number) => E.A, (x: F) => F.A) : (x: number) => number
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>foo : <T>(x: T, a: (x: T) => T, b: (x: T) => T) => (x: T) => T
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>E.A : E
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>E : typeof E
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>A : E
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>(x: number) => E.A : (x: number) => E
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>x : number
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>E.A : E
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>E : typeof E
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>A : E
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>(x: F) => F.A : (x: F) => F
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>x : F
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>F : F
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>F.A : F
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>F : typeof F
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>A : F
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function foo2<T, U>(x: T, a: (x: T) => U, b: (x: T) => U) {
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>foo2 : <T, U>(x: T, a: (x: T) => U, b: (x: T) => U) => (x: T) => U
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>T : T
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>U : U
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>x : T
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>T : T
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>a : (x: T) => U
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>x : T
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>T : T
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>U : U
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>b : (x: T) => U
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>x : T
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>T : T
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>U : U
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var r: (x: T) => U;
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>r : (x: T) => U
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>x : T
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>T : T
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>U : U
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return r;
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>r : (x: T) => U
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}
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var r8 = foo2('', (x) => '', (x) => null); // string => string
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>r8 : (x: string) => any
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>foo2('', (x) => '', (x) => null) : (x: string) => any
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>foo2 : <T, U>(x: T, a: (x: T) => U, b: (x: T) => U) => (x: T) => U
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>(x) => '' : (x: string) => string
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>x : string
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>(x) => null : (x: string) => any
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>x : string
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var r9 = foo2(null, (x) => '', (x) => ''); // any => any
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>r9 : (x: any) => string
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>foo2(null, (x) => '', (x) => '') : (x: any) => string
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>foo2 : <T, U>(x: T, a: (x: T) => U, b: (x: T) => U) => (x: T) => U
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>(x) => '' : (x: any) => string
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>x : any
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>(x) => '' : (x: any) => string
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>x : any
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var r10 = foo2(null, (x: Object) => '', (x: string) => ''); // Object => Object
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>r10 : (x: Object) => string
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>foo2(null, (x: Object) => '', (x: string) => '') : (x: Object) => string
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>foo2 : <T, U>(x: T, a: (x: T) => U, b: (x: T) => U) => (x: T) => U
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>(x: Object) => '' : (x: Object) => string
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>x : Object
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>Object : Object
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>(x: string) => '' : (x: string) => string
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>x : string
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var x: (a: string) => boolean;
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>x : (a: string) => boolean
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>a : string
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var r11 = foo2(x, (a1: (y: string) => string) => (n: Object) => 1, (a2: (z: string) => string) => 2); // {} => {}
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>r11 : (x: {}) => {}
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>foo2(x, (a1: (y: string) => string) => (n: Object) => 1, (a2: (z: string) => string) => 2) : (x: {}) => {}
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>foo2 : <T, U>(x: T, a: (x: T) => U, b: (x: T) => U) => (x: T) => U
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>x : (a: string) => boolean
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>(a1: (y: string) => string) => (n: Object) => 1 : (a1: (y: string) => string) => (n: Object) => number
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>a1 : (y: string) => string
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>y : string
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>(n: Object) => 1 : (n: Object) => number
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>n : Object
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>Object : Object
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>(a2: (z: string) => string) => 2 : (a2: (z: string) => string) => number
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>a2 : (z: string) => string
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>z : string
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var r12 = foo2(x, (a1: (y: string) => boolean) => (n: Object) => 1, (a2: (z: string) => boolean) => 2); // (string => boolean) => {}
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>r12 : (x: (a: string) => boolean) => {}
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>foo2(x, (a1: (y: string) => boolean) => (n: Object) => 1, (a2: (z: string) => boolean) => 2) : (x: (a: string) => boolean) => {}
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>foo2 : <T, U>(x: T, a: (x: T) => U, b: (x: T) => U) => (x: T) => U
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>x : (a: string) => boolean
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>(a1: (y: string) => boolean) => (n: Object) => 1 : (a1: (y: string) => boolean) => (n: Object) => number
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>a1 : (y: string) => boolean
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>y : string
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>(n: Object) => 1 : (n: Object) => number
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>n : Object
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>Object : Object
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>(a2: (z: string) => boolean) => 2 : (a2: (z: string) => boolean) => number
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>a2 : (z: string) => boolean
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>z : string
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