2014-08-15 23:33:16 +02:00
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=== tests/cases/conformance/types/typeRelationships/typeInference/genericClassWithFunctionTypedMemberArguments.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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module ImmediatelyFix {
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>ImmediatelyFix : typeof ImmediatelyFix
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class C<T> {
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>C : C<T>
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>T : T
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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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}
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var c = new C<number>();
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>c : C<number>
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>new C<number>() : C<number>
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>C : typeof C
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var r = c.foo(<U>(x: U) => ''); // {}
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>r : {}
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>c.foo(<U>(x: U) => '') : {}
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>c.foo : <T>(x: (a: T) => T) => T
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>c : C<number>
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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 = c.foo<string>(<U>(x: U) => ''); // string
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>r2 : string
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>c.foo<string>(<U>(x: U) => '') : string
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>c.foo : <T>(x: (a: T) => T) => T
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>c : C<number>
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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 = c.foo(x => ''); // {}
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>r3 : {}
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>c.foo(x => '') : {}
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>c.foo : <T>(x: (a: T) => T) => T
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>c : C<number>
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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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class C2<T> {
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>C2 : C2<T>
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>T : T
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foo(x: (a: T) => T) {
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>foo : (x: (a: T) => 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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}
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var c2 = new C2<number>();
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>c2 : C2<number>
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>new C2<number>() : C2<number>
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>C2 : typeof C2
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var ra = c2.foo(<U>(x: U) => 1); // number
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>ra : number
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>c2.foo(<U>(x: U) => 1) : number
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>c2.foo : (x: (a: number) => number) => number
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>c2 : C2<number>
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>foo : (x: (a: number) => number) => number
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><U>(x: U) => 1 : <U>(x: U) => number
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>U : U
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>x : U
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>U : U
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var r3a = c2.foo(x => 1); // number
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>r3a : number
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>c2.foo(x => 1) : number
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>c2.foo : (x: (a: number) => number) => number
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>c2 : C2<number>
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>foo : (x: (a: number) => number) => number
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>x => 1 : (x: number) => number
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>x : number
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}
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module WithCandidates {
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>WithCandidates : typeof WithCandidates
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class C<T> {
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>C : C<T>
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>T : T
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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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}
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var c: C<number>;
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>c : C<number>
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2014-08-19 04:56:03 +02:00
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>C : C<T>
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2014-08-15 23:33:16 +02:00
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var r4 = c.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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>c.foo2(1, function <Z>(a: Z) { return '' }) : string
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>c.foo2 : <T, U>(x: T, cb: (a: T) => U) => U
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>c : C<number>
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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 = c.foo2(1, (a) => ''); // string
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>r5 : string
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>c.foo2(1, (a) => '') : string
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>c.foo2 : <T, U>(x: T, cb: (a: T) => U) => U
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>c : C<number>
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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 = c.foo2<string, number>('', <Z>(a: Z) => 1); // number
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>r6 : number
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>c.foo2<string, number>('', <Z>(a: Z) => 1) : number
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>c.foo2 : <T, U>(x: T, cb: (a: T) => U) => U
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>c : C<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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class C2<T, U> {
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>C2 : C2<T, U>
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>T : T
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>U : U
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foo3(x: T, cb: (a: T) => U, y: U) {
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>foo3 : (x: T, cb: (a: T) => U, y: 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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}
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var c2: C2<number, string>;
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>c2 : C2<number, string>
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2014-08-19 04:56:03 +02:00
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>C2 : C2<T, U>
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2014-08-15 23:33:16 +02:00
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var r7 = c2.foo3(1, <Z>(a: Z) => '', ''); // string
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>r7 : string
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>c2.foo3(1, <Z>(a: Z) => '', '') : string
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>c2.foo3 : (x: number, cb: (a: number) => string, y: string) => string
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>c2 : C2<number, string>
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>foo3 : (x: number, cb: (a: number) => string, y: string) => string
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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 = c2.foo3(1, function (a) { return '' }, ''); // string
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>r8 : string
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>c2.foo3(1, function (a) { return '' }, '') : string
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>c2.foo3 : (x: number, cb: (a: number) => string, y: string) => string
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>c2 : C2<number, string>
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>foo3 : (x: number, cb: (a: number) => string, y: string) => string
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>function (a) { return '' } : (a: number) => string
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>a : number
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class C3<T, U> {
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>C3 : C3<T, U>
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>T : T
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>U : U
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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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}
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var c3: C3<number, string>;
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>c3 : C3<number, string>
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2014-08-19 04:56:03 +02:00
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>C3 : C3<T, U>
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2014-08-15 23:33:16 +02:00
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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 = c.foo2(1, (x: T) => ''); // string, non-generic signature allows inferences to be made
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>r10 : string
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>c.foo2(1, (x: T) => '') : string
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>c.foo2 : <T, U>(x: T, cb: (a: T) => U) => U
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>c : C<number>
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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 = c.foo2(1, (x) => ''); // string
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>r10 : string
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>c.foo2(1, (x) => '') : string
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>c.foo2 : <T, U>(x: T, cb: (a: T) => U) => U
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>c : C<number>
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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 = c3.foo3(1, (x: T) => '', ''); // string
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>r11 : string
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>c3.foo3(1, (x: T) => '', '') : string
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>c3.foo3 : <T, U>(x: T, cb: (a: T) => U, y: U) => U
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>c3 : C3<number, 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 = c3.foo3(1, (x: T) => '', 1); // {}
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>r11b : {}
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>c3.foo3(1, (x: T) => '', 1) : {}
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>c3.foo3 : <T, U>(x: T, cb: (a: T) => U, y: U) => U
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>c3 : C3<number, 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 r12 = c3.foo3(1, function (a) { return '' }, 1); // {}
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>r12 : {}
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>c3.foo3(1, function (a) { return '' }, 1) : {}
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>c3.foo3 : <T, U>(x: T, cb: (a: T) => U, y: U) => U
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>c3 : C3<number, string>
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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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}
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