TypeScript/tests/baselines/reference/circularBaseTypes.symbols
Anders Hejlsberg 94d6b4507e
Consistent errors on circular base types (#39675)
* Properly track and report errors on circular base types

* Accept new baselines

* Add regression test
2020-07-20 20:35:47 -07:00

29 lines
962 B
Plaintext

=== tests/cases/compiler/circularBaseTypes.ts ===
// Repro from #38098
type M<T> = { value: T };
>M : Symbol(M, Decl(circularBaseTypes.ts, 0, 0))
>T : Symbol(T, Decl(circularBaseTypes.ts, 2, 7))
>value : Symbol(value, Decl(circularBaseTypes.ts, 2, 13))
>T : Symbol(T, Decl(circularBaseTypes.ts, 2, 7))
interface M2 extends M<M3> {}; // Error
>M2 : Symbol(M2, Decl(circularBaseTypes.ts, 2, 25))
>M : Symbol(M, Decl(circularBaseTypes.ts, 0, 0))
>M3 : Symbol(M3, Decl(circularBaseTypes.ts, 3, 30))
type M3 = M2[keyof M2]; // Error
>M3 : Symbol(M3, Decl(circularBaseTypes.ts, 3, 30))
>M2 : Symbol(M2, Decl(circularBaseTypes.ts, 2, 25))
>M2 : Symbol(M2, Decl(circularBaseTypes.ts, 2, 25))
function f(m: M3) {
>f : Symbol(f, Decl(circularBaseTypes.ts, 4, 23))
>m : Symbol(m, Decl(circularBaseTypes.ts, 6, 11))
>M3 : Symbol(M3, Decl(circularBaseTypes.ts, 3, 30))
return m.value;
>m : Symbol(m, Decl(circularBaseTypes.ts, 6, 11))
}