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
46
47
48
49
50
51
52
|
=== tests/cases/compiler/mappedTypeInferenceAliasSubstitution.ts ===
// repro from #31616
const v = { test: { smth: 5 } };
>v : Symbol(v, Decl(mappedTypeInferenceAliasSubstitution.ts, 2, 5))
>test : Symbol(test, Decl(mappedTypeInferenceAliasSubstitution.ts, 2, 11))
>smth : Symbol(smth, Decl(mappedTypeInferenceAliasSubstitution.ts, 2, 19))
type Field<A extends string, R> = { [K in A]: R }
>Field : Symbol(Field, Decl(mappedTypeInferenceAliasSubstitution.ts, 2, 32))
>A : Symbol(A, Decl(mappedTypeInferenceAliasSubstitution.ts, 4, 11))
>R : Symbol(R, Decl(mappedTypeInferenceAliasSubstitution.ts, 4, 28))
>K : Symbol(K, Decl(mappedTypeInferenceAliasSubstitution.ts, 4, 37))
>A : Symbol(A, Decl(mappedTypeInferenceAliasSubstitution.ts, 4, 11))
>R : Symbol(R, Decl(mappedTypeInferenceAliasSubstitution.ts, 4, 28))
const f = <A extends string, B extends string, R>(x: { [K in A]: Field<B, R> }): R => ({} as any);
>f : Symbol(f, Decl(mappedTypeInferenceAliasSubstitution.ts, 6, 5))
>A : Symbol(A, Decl(mappedTypeInferenceAliasSubstitution.ts, 6, 11))
>B : Symbol(B, Decl(mappedTypeInferenceAliasSubstitution.ts, 6, 28))
>R : Symbol(R, Decl(mappedTypeInferenceAliasSubstitution.ts, 6, 46))
>x : Symbol(x, Decl(mappedTypeInferenceAliasSubstitution.ts, 6, 50))
>K : Symbol(K, Decl(mappedTypeInferenceAliasSubstitution.ts, 6, 56))
>A : Symbol(A, Decl(mappedTypeInferenceAliasSubstitution.ts, 6, 11))
>Field : Symbol(Field, Decl(mappedTypeInferenceAliasSubstitution.ts, 2, 32))
>B : Symbol(B, Decl(mappedTypeInferenceAliasSubstitution.ts, 6, 28))
>R : Symbol(R, Decl(mappedTypeInferenceAliasSubstitution.ts, 6, 46))
>R : Symbol(R, Decl(mappedTypeInferenceAliasSubstitution.ts, 6, 46))
const r1 = f(v);
>r1 : Symbol(r1, Decl(mappedTypeInferenceAliasSubstitution.ts, 7, 5))
>f : Symbol(f, Decl(mappedTypeInferenceAliasSubstitution.ts, 6, 5))
>v : Symbol(v, Decl(mappedTypeInferenceAliasSubstitution.ts, 2, 5))
const g = <A extends string, B extends string, R>(x: Field<A, Field<B, R>>): R => ({} as any);
>g : Symbol(g, Decl(mappedTypeInferenceAliasSubstitution.ts, 9, 5))
>A : Symbol(A, Decl(mappedTypeInferenceAliasSubstitution.ts, 9, 11))
>B : Symbol(B, Decl(mappedTypeInferenceAliasSubstitution.ts, 9, 28))
>R : Symbol(R, Decl(mappedTypeInferenceAliasSubstitution.ts, 9, 46))
>x : Symbol(x, Decl(mappedTypeInferenceAliasSubstitution.ts, 9, 50))
>Field : Symbol(Field, Decl(mappedTypeInferenceAliasSubstitution.ts, 2, 32))
>A : Symbol(A, Decl(mappedTypeInferenceAliasSubstitution.ts, 9, 11))
>Field : Symbol(Field, Decl(mappedTypeInferenceAliasSubstitution.ts, 2, 32))
>B : Symbol(B, Decl(mappedTypeInferenceAliasSubstitution.ts, 9, 28))
>R : Symbol(R, Decl(mappedTypeInferenceAliasSubstitution.ts, 9, 46))
>R : Symbol(R, Decl(mappedTypeInferenceAliasSubstitution.ts, 9, 46))
const r2 = g(v);
>r2 : Symbol(r2, Decl(mappedTypeInferenceAliasSubstitution.ts, 10, 5))
>g : Symbol(g, Decl(mappedTypeInferenceAliasSubstitution.ts, 9, 5))
>v : Symbol(v, Decl(mappedTypeInferenceAliasSubstitution.ts, 2, 5))
|
