File: contextualSignatureInstantiationWithTypeParameterConstrainedToOuterTypeParameter.types

package info (click to toggle)
node-typescript 5.1.6%2Bds1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 492,516 kB
  • sloc: javascript: 2,078,951; makefile: 6; sh: 1
file content (25 lines) | stat: -rw-r--r-- 760 bytes parent folder | download
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
=== tests/cases/compiler/contextualSignatureInstantiationWithTypeParameterConstrainedToOuterTypeParameter.ts ===
function f<T>() {
>f : <T>() => <U extends T>(u: U) => U

    function g<U extends T>(u: U): U { return null }
>g : <U extends T>(u: U) => U
>u : U

    return g;
>g : <U extends T>(u: U) => U
}
var h: <V, W>(v: V, func: (v: V) => W) => W;
>h : <V, W>(v: V, func: (v: V) => W) => W
>v : V
>func : (v: V) => W
>v : V

var x = h("", f<string>()); // Call should succeed and x should be string. All type parameters should be instantiated to string
>x : string
>h("", f<string>()) : string
>h : <V, W>(v: V, func: (v: V) => W) => W
>"" : ""
>f<string>() : <U extends string>(u: U) => U
>f : <T>() => <U extends T>(u: U) => U