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Ignore silentNever in intersections with other meaningful constituents
#60876
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99 changes: 99 additions & 0 deletions
99
tests/baselines/reference/silentNeverInIntersections1.symbols
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| //// [tests/cases/compiler/silentNeverInIntersections1.ts] //// | ||
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| === silentNeverInIntersections1.ts === | ||
| // https://github.com/microsoft/TypeScript/issues/60864 | ||
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| class Variable<U, S extends string> { | ||
| >Variable : Symbol(Variable, Decl(silentNeverInIntersections1.ts, 0, 0)) | ||
| >U : Symbol(U, Decl(silentNeverInIntersections1.ts, 2, 15)) | ||
| >S : Symbol(S, Decl(silentNeverInIntersections1.ts, 2, 17)) | ||
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| constructor(public s: S) {} | ||
| >s : Symbol(Variable.s, Decl(silentNeverInIntersections1.ts, 3, 14)) | ||
| >S : Symbol(S, Decl(silentNeverInIntersections1.ts, 2, 17)) | ||
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| u!: U; | ||
| >u : Symbol(Variable.u, Decl(silentNeverInIntersections1.ts, 3, 29)) | ||
| >U : Symbol(U, Decl(silentNeverInIntersections1.ts, 2, 15)) | ||
| } | ||
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| function mkGeneric<U, S extends string>(s: S) { | ||
| >mkGeneric : Symbol(mkGeneric, Decl(silentNeverInIntersections1.ts, 5, 1)) | ||
| >U : Symbol(U, Decl(silentNeverInIntersections1.ts, 7, 19)) | ||
| >S : Symbol(S, Decl(silentNeverInIntersections1.ts, 7, 21)) | ||
| >s : Symbol(s, Decl(silentNeverInIntersections1.ts, 7, 40)) | ||
| >S : Symbol(S, Decl(silentNeverInIntersections1.ts, 7, 21)) | ||
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| return new Variable<U, S>(s); | ||
| >Variable : Symbol(Variable, Decl(silentNeverInIntersections1.ts, 0, 0)) | ||
| >U : Symbol(U, Decl(silentNeverInIntersections1.ts, 7, 19)) | ||
| >S : Symbol(S, Decl(silentNeverInIntersections1.ts, 7, 21)) | ||
| >s : Symbol(s, Decl(silentNeverInIntersections1.ts, 7, 40)) | ||
| } | ||
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| type ExactArgNames<GenericType, Constraint> = GenericType & { | ||
| >ExactArgNames : Symbol(ExactArgNames, Decl(silentNeverInIntersections1.ts, 9, 1)) | ||
| >GenericType : Symbol(GenericType, Decl(silentNeverInIntersections1.ts, 11, 19)) | ||
| >Constraint : Symbol(Constraint, Decl(silentNeverInIntersections1.ts, 11, 31)) | ||
| >GenericType : Symbol(GenericType, Decl(silentNeverInIntersections1.ts, 11, 19)) | ||
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| [K in keyof GenericType]: K extends keyof Constraint ? GenericType[K] : never; | ||
| >K : Symbol(K, Decl(silentNeverInIntersections1.ts, 12, 3)) | ||
| >GenericType : Symbol(GenericType, Decl(silentNeverInIntersections1.ts, 11, 19)) | ||
| >K : Symbol(K, Decl(silentNeverInIntersections1.ts, 12, 3)) | ||
| >Constraint : Symbol(Constraint, Decl(silentNeverInIntersections1.ts, 11, 31)) | ||
| >GenericType : Symbol(GenericType, Decl(silentNeverInIntersections1.ts, 11, 19)) | ||
| >K : Symbol(K, Decl(silentNeverInIntersections1.ts, 12, 3)) | ||
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| }; | ||
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| type AllowVariables<T> = | ||
| >AllowVariables : Symbol(AllowVariables, Decl(silentNeverInIntersections1.ts, 13, 2)) | ||
| >T : Symbol(T, Decl(silentNeverInIntersections1.ts, 15, 20)) | ||
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| | Variable<T, any> | ||
| >Variable : Symbol(Variable, Decl(silentNeverInIntersections1.ts, 0, 0)) | ||
| >T : Symbol(T, Decl(silentNeverInIntersections1.ts, 15, 20)) | ||
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| | { [K in keyof T]: Variable<T[K], any> | T[K] }; | ||
| >K : Symbol(K, Decl(silentNeverInIntersections1.ts, 17, 7)) | ||
| >T : Symbol(T, Decl(silentNeverInIntersections1.ts, 15, 20)) | ||
| >Variable : Symbol(Variable, Decl(silentNeverInIntersections1.ts, 0, 0)) | ||
| >T : Symbol(T, Decl(silentNeverInIntersections1.ts, 15, 20)) | ||
| >K : Symbol(K, Decl(silentNeverInIntersections1.ts, 17, 7)) | ||
| >T : Symbol(T, Decl(silentNeverInIntersections1.ts, 15, 20)) | ||
| >K : Symbol(K, Decl(silentNeverInIntersections1.ts, 17, 7)) | ||
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| type TestArgs = { | ||
| >TestArgs : Symbol(TestArgs, Decl(silentNeverInIntersections1.ts, 17, 51)) | ||
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| someArg: number; | ||
| >someArg : Symbol(someArg, Decl(silentNeverInIntersections1.ts, 19, 17)) | ||
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| }; | ||
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| type TestArgsWithVars = AllowVariables<TestArgs>; | ||
| >TestArgsWithVars : Symbol(TestArgsWithVars, Decl(silentNeverInIntersections1.ts, 21, 2)) | ||
| >AllowVariables : Symbol(AllowVariables, Decl(silentNeverInIntersections1.ts, 13, 2)) | ||
| >TestArgs : Symbol(TestArgs, Decl(silentNeverInIntersections1.ts, 17, 51)) | ||
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| function takesGeneric<V extends AllowVariables<TestArgs>>( | ||
| >takesGeneric : Symbol(takesGeneric, Decl(silentNeverInIntersections1.ts, 23, 49)) | ||
| >V : Symbol(V, Decl(silentNeverInIntersections1.ts, 25, 22)) | ||
| >AllowVariables : Symbol(AllowVariables, Decl(silentNeverInIntersections1.ts, 13, 2)) | ||
| >TestArgs : Symbol(TestArgs, Decl(silentNeverInIntersections1.ts, 17, 51)) | ||
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| a: ExactArgNames<V, TestArgs>, | ||
| >a : Symbol(a, Decl(silentNeverInIntersections1.ts, 25, 58)) | ||
| >ExactArgNames : Symbol(ExactArgNames, Decl(silentNeverInIntersections1.ts, 9, 1)) | ||
| >V : Symbol(V, Decl(silentNeverInIntersections1.ts, 25, 22)) | ||
| >TestArgs : Symbol(TestArgs, Decl(silentNeverInIntersections1.ts, 17, 51)) | ||
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| ): void {} | ||
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| let v = takesGeneric({ someArg: mkGeneric("x") }); | ||
| >v : Symbol(v, Decl(silentNeverInIntersections1.ts, 29, 3)) | ||
| >takesGeneric : Symbol(takesGeneric, Decl(silentNeverInIntersections1.ts, 23, 49)) | ||
| >someArg : Symbol(someArg, Decl(silentNeverInIntersections1.ts, 29, 22)) | ||
| >mkGeneric : Symbol(mkGeneric, Decl(silentNeverInIntersections1.ts, 5, 1)) | ||
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89 changes: 89 additions & 0 deletions
89
tests/baselines/reference/silentNeverInIntersections1.types
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| //// [tests/cases/compiler/silentNeverInIntersections1.ts] //// | ||
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| === silentNeverInIntersections1.ts === | ||
| // https://github.com/microsoft/TypeScript/issues/60864 | ||
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| class Variable<U, S extends string> { | ||
| >Variable : Variable<U, S> | ||
| > : ^^^^^^^^^^^^^^ | ||
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| constructor(public s: S) {} | ||
| >s : S | ||
| > : ^ | ||
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| u!: U; | ||
| >u : U | ||
| > : ^ | ||
| } | ||
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| function mkGeneric<U, S extends string>(s: S) { | ||
| >mkGeneric : <U, S extends string>(s: S) => Variable<U, S> | ||
| > : ^ ^^ ^^^^^^^^^ ^^ ^^ ^^^^^^^^^^^^^^^^^^^ | ||
| >s : S | ||
| > : ^ | ||
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| return new Variable<U, S>(s); | ||
| >new Variable<U, S>(s) : Variable<U, S> | ||
| > : ^^^^^^^^^^^^^^ | ||
| >Variable : typeof Variable | ||
| > : ^^^^^^^^^^^^^^^ | ||
| >s : S | ||
| > : ^ | ||
| } | ||
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| type ExactArgNames<GenericType, Constraint> = GenericType & { | ||
| >ExactArgNames : ExactArgNames<GenericType, Constraint> | ||
| > : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ||
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| [K in keyof GenericType]: K extends keyof Constraint ? GenericType[K] : never; | ||
| }; | ||
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| type AllowVariables<T> = | ||
| >AllowVariables : AllowVariables<T> | ||
| > : ^^^^^^^^^^^^^^^^^ | ||
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| | Variable<T, any> | ||
| | { [K in keyof T]: Variable<T[K], any> | T[K] }; | ||
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| type TestArgs = { | ||
| >TestArgs : TestArgs | ||
| > : ^^^^^^^^ | ||
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| someArg: number; | ||
| >someArg : number | ||
| > : ^^^^^^ | ||
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| }; | ||
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| type TestArgsWithVars = AllowVariables<TestArgs>; | ||
| >TestArgsWithVars : TestArgsWithVars | ||
| > : ^^^^^^^^^^^^^^^^ | ||
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| function takesGeneric<V extends AllowVariables<TestArgs>>( | ||
| >takesGeneric : <V extends AllowVariables<TestArgs>>(a: ExactArgNames<V, TestArgs>) => void | ||
| > : ^ ^^^^^^^^^ ^^ ^^ ^^^^^ | ||
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| a: ExactArgNames<V, TestArgs>, | ||
| >a : ExactArgNames<V, TestArgs> | ||
| > : ^^^^^^^^^^^^^^^^^^^^^^^^^^ | ||
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| ): void {} | ||
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| let v = takesGeneric({ someArg: mkGeneric("x") }); | ||
| >v : void | ||
| > : ^^^^ | ||
| >takesGeneric({ someArg: mkGeneric("x") }) : void | ||
| > : ^^^^ | ||
| >takesGeneric : <V extends AllowVariables<TestArgs>>(a: ExactArgNames<V, TestArgs>) => void | ||
| > : ^ ^^^^^^^^^ ^^ ^^ ^^^^^ | ||
| >{ someArg: mkGeneric("x") } : { someArg: Variable<number, "x">; } | ||
| > : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | ||
| >someArg : Variable<number, "x"> | ||
| > : ^^^^^^^^^^^^^^^^^^^^^ | ||
| >mkGeneric("x") : Variable<number, "x"> | ||
| > : ^^^^^^^^^^^^^^^^^^^^^ | ||
| >mkGeneric : <U, S extends string>(s: S) => Variable<U, S> | ||
| > : ^ ^^ ^^^^^^^^^ ^^ ^^ ^^^^^^^^^^^^^^^^^^^ | ||
| >"x" : "x" | ||
| > : ^^^ | ||
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|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| // @strict: true | ||
| // @noEmit: true | ||
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| // https://github.com/microsoft/TypeScript/issues/60864 | ||
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| class Variable<U, S extends string> { | ||
| constructor(public s: S) {} | ||
| u!: U; | ||
| } | ||
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| function mkGeneric<U, S extends string>(s: S) { | ||
| return new Variable<U, S>(s); | ||
| } | ||
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| type ExactArgNames<GenericType, Constraint> = GenericType & { | ||
| [K in keyof GenericType]: K extends keyof Constraint ? GenericType[K] : never; | ||
| }; | ||
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| type AllowVariables<T> = | ||
| | Variable<T, any> | ||
| | { [K in keyof T]: Variable<T[K], any> | T[K] }; | ||
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| type TestArgs = { | ||
| someArg: number; | ||
| }; | ||
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| type TestArgsWithVars = AllowVariables<TestArgs>; | ||
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| function takesGeneric<V extends AllowVariables<TestArgs>>( | ||
| a: ExactArgNames<V, TestArgs>, | ||
| ): void {} | ||
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| let v = takesGeneric({ someArg: mkGeneric("x") }); |
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This makes
silentNeverTypebehave more likeunknownin intersections. Which is definitely not correct for a never type... but asilentNeverTypeis really just a special marker type so it doesn't quite have to obey the rules.