File: circularBaseConstraint.ts

package info (click to toggle)
node-typescript 5.2.2-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 497,488 kB
  • sloc: javascript: 2,107,274; makefile: 6; sh: 1
file content (18 lines) | stat: -rw-r--r-- 278 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
 
// @strict: true
// @noEmit: true

// Repro from #54610

type A<T> = T;

type B<T> = T extends any[]
    ? never
    : A<T> extends infer key
    ? key extends keyof T
        ? B<T[key]>
        : never
    : never;

function foo<T>() {
    `${a}` as B<T>;
}