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108
tests/baselines/reference/distributiveConditionalTypeConstraints.errors.txt
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,108 @@ | ||
| distributiveConditionalTypeConstraints.ts(4,9): error TS2322: Type 'boolean' is not assignable to type 'true'. | ||
| distributiveConditionalTypeConstraints.ts(5,9): error TS2322: Type 'boolean' is not assignable to type 'false'. | ||
| distributiveConditionalTypeConstraints.ts(10,9): error TS2322: Type 'IsArray<T>' is not assignable to type 'false'. | ||
| Type 'true' is not assignable to type 'false'. | ||
| distributiveConditionalTypeConstraints.ts(15,9): error TS2322: Type 'IsArray<T>' is not assignable to type 'false'. | ||
| Type 'true' is not assignable to type 'false'. | ||
| distributiveConditionalTypeConstraints.ts(19,9): error TS2322: Type 'IsArray<T>' is not assignable to type 'true'. | ||
| Type 'false' is not assignable to type 'true'. | ||
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| ==== distributiveConditionalTypeConstraints.ts (5 errors) ==== | ||
| type IsArray<T> = T extends unknown[] ? true : false; | ||
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| function f1<T extends object>(x: IsArray<T>) { | ||
| let t: true = x; // Error | ||
| ~ | ||
| !!! error TS2322: Type 'boolean' is not assignable to type 'true'. | ||
| let f: false = x; // Error | ||
| ~ | ||
| !!! error TS2322: Type 'boolean' is not assignable to type 'false'. | ||
| } | ||
|
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| function f2<T extends unknown[]>(x: IsArray<T>) { | ||
| let t: true = x; | ||
| let f: false = x; // Error | ||
| ~ | ||
| !!! error TS2322: Type 'IsArray<T>' is not assignable to type 'false'. | ||
| !!! error TS2322: Type 'true' is not assignable to type 'false'. | ||
| } | ||
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| function f3<T extends string[]>(x: IsArray<T>) { | ||
| let t: true = x; | ||
| let f: false = x; // Error | ||
| ~ | ||
| !!! error TS2322: Type 'IsArray<T>' is not assignable to type 'false'. | ||
| !!! error TS2322: Type 'true' is not assignable to type 'false'. | ||
| } | ||
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| function f4<T extends Function>(x: IsArray<T>) { | ||
| let t: true = x; // Error | ||
| ~ | ||
| !!! error TS2322: Type 'IsArray<T>' is not assignable to type 'true'. | ||
| !!! error TS2322: Type 'false' is not assignable to type 'true'. | ||
| let f: false = x; | ||
| } | ||
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| type ZeroOf<T> = | ||
| T extends null ? null : | ||
| T extends undefined ? undefined : | ||
| T extends string ? "" : | ||
| T extends number ? 0 : | ||
| T extends boolean ? false : | ||
| never; | ||
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| function f10<T extends {}>(x: ZeroOf<T>) { | ||
| let t: "" | 0 | false = x; | ||
| } | ||
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| // Modified repro from #30152 | ||
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| interface A { foo(): void; } | ||
| interface B { bar(): void; } | ||
| interface C { foo(): void, bar(): void } | ||
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| function test1<T extends A>(y: T extends B ? number : string) { | ||
| if (typeof y == 'string') { | ||
| y; // T extends B ? number : string | ||
| } | ||
| else { | ||
| y; // never | ||
| } | ||
| const newY: string | number = y; | ||
| newY; // string | ||
| } | ||
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| function test2<T extends A>(y: T extends B ? string : number) { | ||
| if (typeof y == 'string') { | ||
| y; // never | ||
| } | ||
| else { | ||
| y; // T extends B ? string : number | ||
| } | ||
| const newY: string | number = y; | ||
| newY; // number | ||
| } | ||
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| function test3<T extends A>(y: T extends C ? number : string) { | ||
| if (typeof y == 'string') { | ||
| y; // (T extends C ? number : string) & string | ||
| } | ||
| else { | ||
| y; // T extends C ? number : string | ||
| } | ||
| const newY: string | number = y; | ||
| newY; // string | number | ||
| } | ||
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| function test4<T extends A>(y: T extends C ? string : number) { | ||
| if (typeof y == 'string') { | ||
| y; // (T extends C ? string : number) & string | ||
| } | ||
| else { | ||
| y; // T extends C ? string : number | ||
| } | ||
| const newY: string | number = y; | ||
| newY; // string | number | ||
| } | ||
|
|
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tests/baselines/reference/distributiveConditionalTypeConstraints.symbols
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,225 @@ | ||
| //// [tests/cases/compiler/distributiveConditionalTypeConstraints.ts] //// | ||
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| === distributiveConditionalTypeConstraints.ts === | ||
| type IsArray<T> = T extends unknown[] ? true : false; | ||
| >IsArray : Symbol(IsArray, Decl(distributiveConditionalTypeConstraints.ts, 0, 0)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 0, 13)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 0, 13)) | ||
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| function f1<T extends object>(x: IsArray<T>) { | ||
| >f1 : Symbol(f1, Decl(distributiveConditionalTypeConstraints.ts, 0, 53)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 2, 12)) | ||
| >x : Symbol(x, Decl(distributiveConditionalTypeConstraints.ts, 2, 30)) | ||
| >IsArray : Symbol(IsArray, Decl(distributiveConditionalTypeConstraints.ts, 0, 0)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 2, 12)) | ||
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| let t: true = x; // Error | ||
| >t : Symbol(t, Decl(distributiveConditionalTypeConstraints.ts, 3, 7)) | ||
| >x : Symbol(x, Decl(distributiveConditionalTypeConstraints.ts, 2, 30)) | ||
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| let f: false = x; // Error | ||
| >f : Symbol(f, Decl(distributiveConditionalTypeConstraints.ts, 4, 7)) | ||
| >x : Symbol(x, Decl(distributiveConditionalTypeConstraints.ts, 2, 30)) | ||
| } | ||
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| function f2<T extends unknown[]>(x: IsArray<T>) { | ||
| >f2 : Symbol(f2, Decl(distributiveConditionalTypeConstraints.ts, 5, 1)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 7, 12)) | ||
| >x : Symbol(x, Decl(distributiveConditionalTypeConstraints.ts, 7, 33)) | ||
| >IsArray : Symbol(IsArray, Decl(distributiveConditionalTypeConstraints.ts, 0, 0)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 7, 12)) | ||
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| let t: true = x; | ||
| >t : Symbol(t, Decl(distributiveConditionalTypeConstraints.ts, 8, 7)) | ||
| >x : Symbol(x, Decl(distributiveConditionalTypeConstraints.ts, 7, 33)) | ||
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| let f: false = x; // Error | ||
| >f : Symbol(f, Decl(distributiveConditionalTypeConstraints.ts, 9, 7)) | ||
| >x : Symbol(x, Decl(distributiveConditionalTypeConstraints.ts, 7, 33)) | ||
| } | ||
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| function f3<T extends string[]>(x: IsArray<T>) { | ||
| >f3 : Symbol(f3, Decl(distributiveConditionalTypeConstraints.ts, 10, 1)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 12, 12)) | ||
| >x : Symbol(x, Decl(distributiveConditionalTypeConstraints.ts, 12, 32)) | ||
| >IsArray : Symbol(IsArray, Decl(distributiveConditionalTypeConstraints.ts, 0, 0)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 12, 12)) | ||
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| let t: true = x; | ||
| >t : Symbol(t, Decl(distributiveConditionalTypeConstraints.ts, 13, 7)) | ||
| >x : Symbol(x, Decl(distributiveConditionalTypeConstraints.ts, 12, 32)) | ||
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| let f: false = x; // Error | ||
| >f : Symbol(f, Decl(distributiveConditionalTypeConstraints.ts, 14, 7)) | ||
| >x : Symbol(x, Decl(distributiveConditionalTypeConstraints.ts, 12, 32)) | ||
| } | ||
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| function f4<T extends Function>(x: IsArray<T>) { | ||
| >f4 : Symbol(f4, Decl(distributiveConditionalTypeConstraints.ts, 15, 1)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 17, 12)) | ||
| >Function : Symbol(Function, Decl(lib.es5.d.ts, --, --), Decl(lib.es5.d.ts, --, --)) | ||
| >x : Symbol(x, Decl(distributiveConditionalTypeConstraints.ts, 17, 32)) | ||
| >IsArray : Symbol(IsArray, Decl(distributiveConditionalTypeConstraints.ts, 0, 0)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 17, 12)) | ||
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| let t: true = x; // Error | ||
| >t : Symbol(t, Decl(distributiveConditionalTypeConstraints.ts, 18, 7)) | ||
| >x : Symbol(x, Decl(distributiveConditionalTypeConstraints.ts, 17, 32)) | ||
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| let f: false = x; | ||
| >f : Symbol(f, Decl(distributiveConditionalTypeConstraints.ts, 19, 7)) | ||
| >x : Symbol(x, Decl(distributiveConditionalTypeConstraints.ts, 17, 32)) | ||
| } | ||
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| type ZeroOf<T> = | ||
| >ZeroOf : Symbol(ZeroOf, Decl(distributiveConditionalTypeConstraints.ts, 20, 1)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 22, 12)) | ||
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| T extends null ? null : | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 22, 12)) | ||
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| T extends undefined ? undefined : | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 22, 12)) | ||
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| T extends string ? "" : | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 22, 12)) | ||
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| T extends number ? 0 : | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 22, 12)) | ||
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| T extends boolean ? false : | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 22, 12)) | ||
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| never; | ||
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| function f10<T extends {}>(x: ZeroOf<T>) { | ||
| >f10 : Symbol(f10, Decl(distributiveConditionalTypeConstraints.ts, 28, 10)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 30, 13)) | ||
| >x : Symbol(x, Decl(distributiveConditionalTypeConstraints.ts, 30, 27)) | ||
| >ZeroOf : Symbol(ZeroOf, Decl(distributiveConditionalTypeConstraints.ts, 20, 1)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 30, 13)) | ||
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| let t: "" | 0 | false = x; | ||
| >t : Symbol(t, Decl(distributiveConditionalTypeConstraints.ts, 31, 7)) | ||
| >x : Symbol(x, Decl(distributiveConditionalTypeConstraints.ts, 30, 27)) | ||
| } | ||
|
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| // Modified repro from #30152 | ||
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| interface A { foo(): void; } | ||
| >A : Symbol(A, Decl(distributiveConditionalTypeConstraints.ts, 32, 1)) | ||
| >foo : Symbol(A.foo, Decl(distributiveConditionalTypeConstraints.ts, 36, 13)) | ||
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| interface B { bar(): void; } | ||
| >B : Symbol(B, Decl(distributiveConditionalTypeConstraints.ts, 36, 28)) | ||
| >bar : Symbol(B.bar, Decl(distributiveConditionalTypeConstraints.ts, 37, 13)) | ||
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| interface C { foo(): void, bar(): void } | ||
| >C : Symbol(C, Decl(distributiveConditionalTypeConstraints.ts, 37, 28)) | ||
| >foo : Symbol(C.foo, Decl(distributiveConditionalTypeConstraints.ts, 38, 13)) | ||
| >bar : Symbol(C.bar, Decl(distributiveConditionalTypeConstraints.ts, 38, 26)) | ||
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| function test1<T extends A>(y: T extends B ? number : string) { | ||
| >test1 : Symbol(test1, Decl(distributiveConditionalTypeConstraints.ts, 38, 40)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 40, 15)) | ||
| >A : Symbol(A, Decl(distributiveConditionalTypeConstraints.ts, 32, 1)) | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 40, 28)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 40, 15)) | ||
| >B : Symbol(B, Decl(distributiveConditionalTypeConstraints.ts, 36, 28)) | ||
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| if (typeof y == 'string') { | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 40, 28)) | ||
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| y; // T extends B ? number : string | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 40, 28)) | ||
| } | ||
| else { | ||
| y; // never | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 40, 28)) | ||
| } | ||
| const newY: string | number = y; | ||
| >newY : Symbol(newY, Decl(distributiveConditionalTypeConstraints.ts, 47, 9)) | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 40, 28)) | ||
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| newY; // string | ||
| >newY : Symbol(newY, Decl(distributiveConditionalTypeConstraints.ts, 47, 9)) | ||
| } | ||
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| function test2<T extends A>(y: T extends B ? string : number) { | ||
| >test2 : Symbol(test2, Decl(distributiveConditionalTypeConstraints.ts, 49, 1)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 51, 15)) | ||
| >A : Symbol(A, Decl(distributiveConditionalTypeConstraints.ts, 32, 1)) | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 51, 28)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 51, 15)) | ||
| >B : Symbol(B, Decl(distributiveConditionalTypeConstraints.ts, 36, 28)) | ||
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| if (typeof y == 'string') { | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 51, 28)) | ||
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| y; // never | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 51, 28)) | ||
| } | ||
| else { | ||
| y; // T extends B ? string : number | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 51, 28)) | ||
| } | ||
| const newY: string | number = y; | ||
| >newY : Symbol(newY, Decl(distributiveConditionalTypeConstraints.ts, 58, 9)) | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 51, 28)) | ||
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| newY; // number | ||
| >newY : Symbol(newY, Decl(distributiveConditionalTypeConstraints.ts, 58, 9)) | ||
| } | ||
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| function test3<T extends A>(y: T extends C ? number : string) { | ||
| >test3 : Symbol(test3, Decl(distributiveConditionalTypeConstraints.ts, 60, 1)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 62, 15)) | ||
| >A : Symbol(A, Decl(distributiveConditionalTypeConstraints.ts, 32, 1)) | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 62, 28)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 62, 15)) | ||
| >C : Symbol(C, Decl(distributiveConditionalTypeConstraints.ts, 37, 28)) | ||
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| if (typeof y == 'string') { | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 62, 28)) | ||
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| y; // (T extends C ? number : string) & string | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 62, 28)) | ||
| } | ||
| else { | ||
| y; // T extends C ? number : string | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 62, 28)) | ||
| } | ||
| const newY: string | number = y; | ||
| >newY : Symbol(newY, Decl(distributiveConditionalTypeConstraints.ts, 69, 9)) | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 62, 28)) | ||
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| newY; // string | number | ||
| >newY : Symbol(newY, Decl(distributiveConditionalTypeConstraints.ts, 69, 9)) | ||
| } | ||
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| function test4<T extends A>(y: T extends C ? string : number) { | ||
| >test4 : Symbol(test4, Decl(distributiveConditionalTypeConstraints.ts, 71, 1)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 73, 15)) | ||
| >A : Symbol(A, Decl(distributiveConditionalTypeConstraints.ts, 32, 1)) | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 73, 28)) | ||
| >T : Symbol(T, Decl(distributiveConditionalTypeConstraints.ts, 73, 15)) | ||
| >C : Symbol(C, Decl(distributiveConditionalTypeConstraints.ts, 37, 28)) | ||
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| if (typeof y == 'string') { | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 73, 28)) | ||
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| y; // (T extends C ? string : number) & string | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 73, 28)) | ||
| } | ||
| else { | ||
| y; // T extends C ? string : number | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 73, 28)) | ||
| } | ||
| const newY: string | number = y; | ||
| >newY : Symbol(newY, Decl(distributiveConditionalTypeConstraints.ts, 80, 9)) | ||
| >y : Symbol(y, Decl(distributiveConditionalTypeConstraints.ts, 73, 28)) | ||
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| newY; // string | number | ||
| >newY : Symbol(newY, Decl(distributiveConditionalTypeConstraints.ts, 80, 9)) | ||
| } | ||
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