Normalize type references before relating them #35266
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| //// [unwitnessedTypeParameterVariance.ts] | ||
| // Repros from #33872 | ||
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| export interface CalcObj<O> { | ||
| read: (origin: O) => CalcValue<O>; | ||
| } | ||
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| export type CalcValue<O> = CalcObj<O>; | ||
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| function foo<O>() { | ||
| const unk: CalcObj<unknown> = { read: (origin: unknown) => unk } | ||
| const x: CalcObj<O> = unk; | ||
| } | ||
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| type A<T> = B<T>; | ||
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| interface B<T> { | ||
| prop: A<T>; | ||
| } | ||
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| declare let a: A<number>; | ||
| declare let b: A<3>; | ||
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| b = a; | ||
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| //// [unwitnessedTypeParameterVariance.js] | ||
| "use strict"; | ||
| // Repros from #33872 | ||
| exports.__esModule = true; | ||
| function foo() { | ||
| var unk = { read: function (origin) { return unk; } }; | ||
| var x = unk; | ||
| } | ||
| b = a; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| === tests/cases/compiler/unwitnessedTypeParameterVariance.ts === | ||
| // Repros from #33872 | ||
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| export interface CalcObj<O> { | ||
| >CalcObj : Symbol(CalcObj, Decl(unwitnessedTypeParameterVariance.ts, 0, 0)) | ||
| >O : Symbol(O, Decl(unwitnessedTypeParameterVariance.ts, 2, 25)) | ||
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| read: (origin: O) => CalcValue<O>; | ||
| >read : Symbol(CalcObj.read, Decl(unwitnessedTypeParameterVariance.ts, 2, 29)) | ||
| >origin : Symbol(origin, Decl(unwitnessedTypeParameterVariance.ts, 3, 11)) | ||
| >O : Symbol(O, Decl(unwitnessedTypeParameterVariance.ts, 2, 25)) | ||
| >CalcValue : Symbol(CalcValue, Decl(unwitnessedTypeParameterVariance.ts, 4, 1)) | ||
| >O : Symbol(O, Decl(unwitnessedTypeParameterVariance.ts, 2, 25)) | ||
| } | ||
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| export type CalcValue<O> = CalcObj<O>; | ||
| >CalcValue : Symbol(CalcValue, Decl(unwitnessedTypeParameterVariance.ts, 4, 1)) | ||
| >O : Symbol(O, Decl(unwitnessedTypeParameterVariance.ts, 6, 22)) | ||
| >CalcObj : Symbol(CalcObj, Decl(unwitnessedTypeParameterVariance.ts, 0, 0)) | ||
| >O : Symbol(O, Decl(unwitnessedTypeParameterVariance.ts, 6, 22)) | ||
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| function foo<O>() { | ||
| >foo : Symbol(foo, Decl(unwitnessedTypeParameterVariance.ts, 6, 38)) | ||
| >O : Symbol(O, Decl(unwitnessedTypeParameterVariance.ts, 8, 13)) | ||
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| const unk: CalcObj<unknown> = { read: (origin: unknown) => unk } | ||
| >unk : Symbol(unk, Decl(unwitnessedTypeParameterVariance.ts, 9, 9)) | ||
| >CalcObj : Symbol(CalcObj, Decl(unwitnessedTypeParameterVariance.ts, 0, 0)) | ||
| >read : Symbol(read, Decl(unwitnessedTypeParameterVariance.ts, 9, 35)) | ||
| >origin : Symbol(origin, Decl(unwitnessedTypeParameterVariance.ts, 9, 43)) | ||
| >unk : Symbol(unk, Decl(unwitnessedTypeParameterVariance.ts, 9, 9)) | ||
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| const x: CalcObj<O> = unk; | ||
| >x : Symbol(x, Decl(unwitnessedTypeParameterVariance.ts, 10, 9)) | ||
| >CalcObj : Symbol(CalcObj, Decl(unwitnessedTypeParameterVariance.ts, 0, 0)) | ||
| >O : Symbol(O, Decl(unwitnessedTypeParameterVariance.ts, 8, 13)) | ||
| >unk : Symbol(unk, Decl(unwitnessedTypeParameterVariance.ts, 9, 9)) | ||
| } | ||
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| type A<T> = B<T>; | ||
| >A : Symbol(A, Decl(unwitnessedTypeParameterVariance.ts, 11, 1)) | ||
| >T : Symbol(T, Decl(unwitnessedTypeParameterVariance.ts, 13, 7)) | ||
| >B : Symbol(B, Decl(unwitnessedTypeParameterVariance.ts, 13, 17)) | ||
| >T : Symbol(T, Decl(unwitnessedTypeParameterVariance.ts, 13, 7)) | ||
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| interface B<T> { | ||
| >B : Symbol(B, Decl(unwitnessedTypeParameterVariance.ts, 13, 17)) | ||
| >T : Symbol(T, Decl(unwitnessedTypeParameterVariance.ts, 15, 12)) | ||
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| prop: A<T>; | ||
| >prop : Symbol(B.prop, Decl(unwitnessedTypeParameterVariance.ts, 15, 16)) | ||
| >A : Symbol(A, Decl(unwitnessedTypeParameterVariance.ts, 11, 1)) | ||
| >T : Symbol(T, Decl(unwitnessedTypeParameterVariance.ts, 15, 12)) | ||
| } | ||
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| declare let a: A<number>; | ||
| >a : Symbol(a, Decl(unwitnessedTypeParameterVariance.ts, 19, 11)) | ||
| >A : Symbol(A, Decl(unwitnessedTypeParameterVariance.ts, 11, 1)) | ||
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| declare let b: A<3>; | ||
| >b : Symbol(b, Decl(unwitnessedTypeParameterVariance.ts, 20, 11)) | ||
| >A : Symbol(A, Decl(unwitnessedTypeParameterVariance.ts, 11, 1)) | ||
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| b = a; | ||
| >b : Symbol(b, Decl(unwitnessedTypeParameterVariance.ts, 20, 11)) | ||
| >a : Symbol(a, Decl(unwitnessedTypeParameterVariance.ts, 19, 11)) | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| === tests/cases/compiler/unwitnessedTypeParameterVariance.ts === | ||
| // Repros from #33872 | ||
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| export interface CalcObj<O> { | ||
| read: (origin: O) => CalcValue<O>; | ||
| >read : (origin: O) => CalcValue<O> | ||
| >origin : O | ||
| } | ||
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| export type CalcValue<O> = CalcObj<O>; | ||
| >CalcValue : CalcValue<O> | ||
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| function foo<O>() { | ||
| >foo : <O>() => void | ||
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| const unk: CalcObj<unknown> = { read: (origin: unknown) => unk } | ||
| >unk : CalcObj<unknown> | ||
| >{ read: (origin: unknown) => unk } : { read: (origin: unknown) => CalcObj<unknown>; } | ||
| >read : (origin: unknown) => CalcObj<unknown> | ||
| >(origin: unknown) => unk : (origin: unknown) => CalcObj<unknown> | ||
| >origin : unknown | ||
| >unk : CalcObj<unknown> | ||
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| const x: CalcObj<O> = unk; | ||
| >x : CalcObj<O> | ||
| >unk : CalcObj<unknown> | ||
| } | ||
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| type A<T> = B<T>; | ||
| >A : A<T> | ||
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| interface B<T> { | ||
| prop: A<T>; | ||
| >prop : A<T> | ||
| } | ||
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| declare let a: A<number>; | ||
| >a : A<number> | ||
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| declare let b: A<3>; | ||
| >b : A<3> | ||
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| b = a; | ||
| >b = a : A<number> | ||
| >b : A<3> | ||
| >a : A<number> | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| // @strict: true | ||
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| // Repros from #33872 | ||
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| export interface CalcObj<O> { | ||
| read: (origin: O) => CalcValue<O>; | ||
| } | ||
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| export type CalcValue<O> = CalcObj<O>; | ||
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| function foo<O>() { | ||
| const unk: CalcObj<unknown> = { read: (origin: unknown) => unk } | ||
| const x: CalcObj<O> = unk; | ||
| } | ||
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| type A<T> = B<T>; | ||
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| interface B<T> { | ||
| prop: A<T>; | ||
| } | ||
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| declare let a: A<number>; | ||
| declare let b: A<3>; | ||
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| b = a; |
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How will this function jibe with #31804 and the associated fix #32116 - does this function just become recursive?
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We should be able to just move the loop into
getNormalizedType.