54 lines
1.1 KiB
Plaintext
54 lines
1.1 KiB
Plaintext
=== tests/cases/compiler/promiseIdentityWithConstraints.ts ===
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interface IPromise<T, V> {
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>IPromise : IPromise<T, V>
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>T : T
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>V : V
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then<U extends T, W extends V>(callback: (x: T) => IPromise<U, W>): IPromise<U, W>;
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>then : <U extends T, W extends V>(callback: (x: T) => IPromise<U, W>) => IPromise<U, W>
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>U : U
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>T : T
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>W : W
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>V : V
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>callback : (x: T) => IPromise<U, W>
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>x : T
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>T : T
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>IPromise : IPromise<T, V>
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>U : U
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>W : W
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>IPromise : IPromise<T, V>
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>U : U
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>W : W
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}
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interface Promise<T, V> {
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>Promise : Promise<T, V>
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>T : T
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>V : V
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then<U extends T, W extends V>(callback: (x: T) => Promise<U, W>): Promise<U, W>;
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>then : <U extends T, W extends V>(callback: (x: T) => Promise<U, W>) => Promise<U, W>
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>U : U
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>T : T
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>W : W
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>V : V
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>callback : (x: T) => Promise<U, W>
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>x : T
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>T : T
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>Promise : Promise<T, V>
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>U : U
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>W : W
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>Promise : Promise<T, V>
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>U : U
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>W : W
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}
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// Error because constraint V doesn't match
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var x: IPromise<string, number>;
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>x : IPromise<string, number>
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>IPromise : IPromise<T, V>
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var x: Promise<string, boolean>;
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>x : IPromise<string, number>
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>Promise : Promise<T, V>
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