49 lines
3.3 KiB
Plaintext
49 lines
3.3 KiB
Plaintext
=== tests/cases/compiler/contextualSignatureInstatiationCovariance.ts ===
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interface Animal { x }
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>Animal : Animal, Symbol(Animal, Decl(contextualSignatureInstatiationCovariance.ts, 0, 0))
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>x : any, Symbol(x, Decl(contextualSignatureInstatiationCovariance.ts, 0, 18))
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interface TallThing { x2 }
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>TallThing : TallThing, Symbol(TallThing, Decl(contextualSignatureInstatiationCovariance.ts, 0, 22))
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>x2 : any, Symbol(x2, Decl(contextualSignatureInstatiationCovariance.ts, 1, 21))
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interface Giraffe extends Animal, TallThing { y }
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>Giraffe : Giraffe, Symbol(Giraffe, Decl(contextualSignatureInstatiationCovariance.ts, 1, 26))
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>Animal : Animal, Symbol(Animal, Decl(contextualSignatureInstatiationCovariance.ts, 0, 0))
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>TallThing : TallThing, Symbol(TallThing, Decl(contextualSignatureInstatiationCovariance.ts, 0, 22))
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>y : any, Symbol(y, Decl(contextualSignatureInstatiationCovariance.ts, 2, 45))
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var f2: <T extends Giraffe>(x: T, y: T) => void;
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>f2 : <T extends Giraffe>(x: T, y: T) => void, Symbol(f2, Decl(contextualSignatureInstatiationCovariance.ts, 4, 3))
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>T : T, Symbol(T, Decl(contextualSignatureInstatiationCovariance.ts, 4, 9))
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>Giraffe : Giraffe, Symbol(Giraffe, Decl(contextualSignatureInstatiationCovariance.ts, 1, 26))
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>x : T, Symbol(x, Decl(contextualSignatureInstatiationCovariance.ts, 4, 28))
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>T : T, Symbol(T, Decl(contextualSignatureInstatiationCovariance.ts, 4, 9))
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>y : T, Symbol(y, Decl(contextualSignatureInstatiationCovariance.ts, 4, 33))
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>T : T, Symbol(T, Decl(contextualSignatureInstatiationCovariance.ts, 4, 9))
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var g2: (a: Animal, t: TallThing) => void;
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>g2 : (a: Animal, t: TallThing) => void, Symbol(g2, Decl(contextualSignatureInstatiationCovariance.ts, 6, 3))
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>a : Animal, Symbol(a, Decl(contextualSignatureInstatiationCovariance.ts, 6, 9))
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>Animal : Animal, Symbol(Animal, Decl(contextualSignatureInstatiationCovariance.ts, 0, 0))
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>t : TallThing, Symbol(t, Decl(contextualSignatureInstatiationCovariance.ts, 6, 19))
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>TallThing : TallThing, Symbol(TallThing, Decl(contextualSignatureInstatiationCovariance.ts, 0, 22))
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g2 = f2; // While neither Animal nor TallThing satisfy the constraint, T is at worst a Giraffe and compatible with both via covariance.
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>g2 = f2 : <T extends Giraffe>(x: T, y: T) => void
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>g2 : (a: Animal, t: TallThing) => void, Symbol(g2, Decl(contextualSignatureInstatiationCovariance.ts, 6, 3))
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>f2 : <T extends Giraffe>(x: T, y: T) => void, Symbol(f2, Decl(contextualSignatureInstatiationCovariance.ts, 4, 3))
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var h2: (a1: Animal, a2: Animal) => void;
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>h2 : (a1: Animal, a2: Animal) => void, Symbol(h2, Decl(contextualSignatureInstatiationCovariance.ts, 9, 3))
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>a1 : Animal, Symbol(a1, Decl(contextualSignatureInstatiationCovariance.ts, 9, 9))
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>Animal : Animal, Symbol(Animal, Decl(contextualSignatureInstatiationCovariance.ts, 0, 0))
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>a2 : Animal, Symbol(a2, Decl(contextualSignatureInstatiationCovariance.ts, 9, 20))
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>Animal : Animal, Symbol(Animal, Decl(contextualSignatureInstatiationCovariance.ts, 0, 0))
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h2 = f2; // Animal does not satisfy the constraint, but T is at worst a Giraffe and compatible with Animal via covariance.
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>h2 = f2 : <T extends Giraffe>(x: T, y: T) => void
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>h2 : (a1: Animal, a2: Animal) => void, Symbol(h2, Decl(contextualSignatureInstatiationCovariance.ts, 9, 3))
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>f2 : <T extends Giraffe>(x: T, y: T) => void, Symbol(f2, Decl(contextualSignatureInstatiationCovariance.ts, 4, 3))
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