174 lines
3.9 KiB
Plaintext
174 lines
3.9 KiB
Plaintext
=== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts ===
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// Generic functions used as arguments for function typed parameters are not used to make inferences from
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// Using function arguments, no errors expected
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function foo<T>(x: (a: T) => T) {
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>foo : <T>(x: (a: T) => T) => T
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>T : T
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>x : (a: T) => T
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>a : T
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>T : T
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>T : T
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return x(null);
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>x(null) : T
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>x : (a: T) => T
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}
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var r = foo(<U>(x: U) => ''); // {}
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>r : {}
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>foo(<U>(x: U) => '') : {}
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>foo : <T>(x: (a: T) => T) => T
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><U>(x: U) => '' : <U>(x: U) => string
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>U : U
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>x : U
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>U : U
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var r2 = foo<string>(<U>(x: U) => ''); // string
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>r2 : string
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>foo<string>(<U>(x: U) => '') : string
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>foo : <T>(x: (a: T) => T) => T
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><U>(x: U) => '' : <U>(x: U) => string
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>U : U
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>x : U
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>U : U
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var r3 = foo(x => ''); // {}
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>r3 : {}
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>foo(x => '') : {}
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>foo : <T>(x: (a: T) => T) => T
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>x => '' : (x: {}) => string
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>x : {}
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function foo2<T, U>(x: T, cb: (a: T) => U) {
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>foo2 : <T, U>(x: T, cb: (a: T) => U) => 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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>cb : (a: T) => U
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>a : T
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>T : T
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>U : U
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return cb(x);
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>cb(x) : U
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>cb : (a: T) => U
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>x : T
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}
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var r4 = foo2(1, function <Z>(a: Z) { return '' }); // string, contextual signature instantiation is applied to generic functions
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>r4 : string
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>foo2(1, function <Z>(a: Z) { return '' }) : string
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>foo2 : <T, U>(x: T, cb: (a: T) => U) => U
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>function <Z>(a: Z) { return '' } : <Z>(a: Z) => string
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>Z : Z
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>a : Z
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>Z : Z
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var r5 = foo2(1, (a) => ''); // string
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>r5 : string
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>foo2(1, (a) => '') : string
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>foo2 : <T, U>(x: T, cb: (a: T) => U) => U
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>(a) => '' : (a: number) => string
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>a : number
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var r6 = foo2<string, number>('', <Z>(a: Z) => 1);
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>r6 : number
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>foo2<string, number>('', <Z>(a: Z) => 1) : number
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>foo2 : <T, U>(x: T, cb: (a: T) => U) => U
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><Z>(a: Z) => 1 : <Z>(a: Z) => number
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>Z : Z
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>a : Z
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>Z : Z
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function foo3<T, U>(x: T, cb: (a: T) => U, y: U) {
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>foo3 : <T, U>(x: T, cb: (a: T) => U, y: U) => 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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>cb : (a: T) => U
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>a : T
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>T : T
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>U : U
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>y : U
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>U : U
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return cb(x);
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>cb(x) : U
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>cb : (a: T) => U
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>x : T
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}
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var r7 = foo3(1, <Z>(a: Z) => '', ''); // string
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>r7 : string
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>foo3(1, <Z>(a: Z) => '', '') : string
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>foo3 : <T, U>(x: T, cb: (a: T) => U, y: U) => U
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><Z>(a: Z) => '' : <Z>(a: Z) => string
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>Z : Z
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>a : Z
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>Z : Z
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var r8 = foo3(1, function (a) { return '' }, 1); // {}
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>r8 : {}
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>foo3(1, function (a) { return '' }, 1) : {}
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>foo3 : <T, U>(x: T, cb: (a: T) => U, y: U) => U
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>function (a) { return '' } : (a: number) => string
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>a : number
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var r9 = foo3<number, string>(1, (a) => '', ''); // string
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>r9 : string
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>foo3<number, string>(1, (a) => '', '') : string
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>foo3 : <T, U>(x: T, cb: (a: T) => U, y: U) => U
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>(a) => '' : (a: number) => string
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>a : number
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function other<T, U>(t: T, u: U) {
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>other : <T, U>(t: T, u: U) => void
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>T : T
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>U : U
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>t : T
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>T : T
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>u : U
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>U : U
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var r10 = foo2(1, (x: T) => ''); // string, non-generic signature allows inferences to be made
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>r10 : string
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>foo2(1, (x: T) => '') : string
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>foo2 : <T, U>(x: T, cb: (a: T) => U) => U
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>(x: T) => '' : (x: T) => string
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>x : T
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>T : T
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var r10 = foo2(1, (x) => ''); // string
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>r10 : string
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>foo2(1, (x) => '') : string
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>foo2 : <T, U>(x: T, cb: (a: T) => U) => U
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>(x) => '' : (x: number) => string
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>x : number
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var r11 = foo3(1, (x: T) => '', ''); // string
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>r11 : string
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>foo3(1, (x: T) => '', '') : string
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>foo3 : <T, U>(x: T, cb: (a: T) => U, y: U) => U
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>(x: T) => '' : (x: T) => string
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>x : T
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>T : T
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var r11b = foo3(1, (x: T) => '', 1); // {}
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>r11b : {}
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>foo3(1, (x: T) => '', 1) : {}
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>foo3 : <T, U>(x: T, cb: (a: T) => U, y: U) => U
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>(x: T) => '' : (x: T) => string
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>x : T
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>T : T
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var r12 = foo3(1, function (a) { return '' }, 1); // {}
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>r12 : {}
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>foo3(1, function (a) { return '' }, 1) : {}
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>foo3 : <T, U>(x: T, cb: (a: T) => U, y: U) => U
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>function (a) { return '' } : (a: number) => string
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>a : number
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}
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