1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
=== tests/cases/compiler/propagationOfPromiseInitialization.ts ===
interface IPromise<T> {
>IPromise : Symbol(IPromise, Decl(propagationOfPromiseInitialization.ts, 0, 0))
>T : Symbol(T, Decl(propagationOfPromiseInitialization.ts, 0, 19))
then<TResult>(successCallback: (promiseValue: T) => TResult, errorCallback?: (reason: any) => TResult): IPromise<TResult>;
>then : Symbol(IPromise.then, Decl(propagationOfPromiseInitialization.ts, 0, 23))
>TResult : Symbol(TResult, Decl(propagationOfPromiseInitialization.ts, 1, 9))
>successCallback : Symbol(successCallback, Decl(propagationOfPromiseInitialization.ts, 1, 18))
>promiseValue : Symbol(promiseValue, Decl(propagationOfPromiseInitialization.ts, 1, 36))
>T : Symbol(T, Decl(propagationOfPromiseInitialization.ts, 0, 19))
>TResult : Symbol(TResult, Decl(propagationOfPromiseInitialization.ts, 1, 9))
>errorCallback : Symbol(errorCallback, Decl(propagationOfPromiseInitialization.ts, 1, 64))
>reason : Symbol(reason, Decl(propagationOfPromiseInitialization.ts, 1, 82))
>TResult : Symbol(TResult, Decl(propagationOfPromiseInitialization.ts, 1, 9))
>IPromise : Symbol(IPromise, Decl(propagationOfPromiseInitialization.ts, 0, 0))
>TResult : Symbol(TResult, Decl(propagationOfPromiseInitialization.ts, 1, 9))
}
var foo: IPromise<number>;
>foo : Symbol(foo, Decl(propagationOfPromiseInitialization.ts, 4, 3))
>IPromise : Symbol(IPromise, Decl(propagationOfPromiseInitialization.ts, 0, 0))
foo.then((x) => {
>foo.then((x) => { // x is inferred to be a number return "asdf";}).then : Symbol(IPromise.then, Decl(propagationOfPromiseInitialization.ts, 0, 23))
>foo.then : Symbol(IPromise.then, Decl(propagationOfPromiseInitialization.ts, 0, 23))
>foo : Symbol(foo, Decl(propagationOfPromiseInitialization.ts, 4, 3))
>then : Symbol(IPromise.then, Decl(propagationOfPromiseInitialization.ts, 0, 23))
>x : Symbol(x, Decl(propagationOfPromiseInitialization.ts, 5, 10))
// x is inferred to be a number
return "asdf";
}).then((x) => {
>then : Symbol(IPromise.then, Decl(propagationOfPromiseInitialization.ts, 0, 23))
>x : Symbol(x, Decl(propagationOfPromiseInitialization.ts, 8, 9))
// x is inferred to be string
x.length;
>x.length : Symbol(String.length, Decl(lib.d.ts, --, --))
>x : Symbol(x, Decl(propagationOfPromiseInitialization.ts, 8, 9))
>length : Symbol(String.length, Decl(lib.d.ts, --, --))
return 123;
});
|
