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//// [NonNullableInNonStrictMode.ts] | ||
// These should all resolve to never | ||
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type T0 = NonNullable<null>; | ||
type T1 = NonNullable<undefined>; | ||
type T2 = null & {}; | ||
type T3 = undefined & {}; | ||
type T4 = null & undefined; | ||
type T6 = null & { a: string } & {}; | ||
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// Repro from #50519 | ||
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type NonNullableNew<T> = T & {}; | ||
type NonNullableOld<T> = T extends null | undefined ? never : T; | ||
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type IsNullWithoutStrictNullChecks = NonNullableNew<null>; | ||
type IsAlwaysNever = NonNullableOld<null>; | ||
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//// [NonNullableInNonStrictMode.js] | ||
// These should all resolve to never |
45 changes: 45 additions & 0 deletions
45
tests/baselines/reference/NonNullableInNonStrictMode.symbols
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=== tests/cases/compiler/NonNullableInNonStrictMode.ts === | ||
// These should all resolve to never | ||
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type T0 = NonNullable<null>; | ||
>T0 : Symbol(T0, Decl(NonNullableInNonStrictMode.ts, 0, 0)) | ||
>NonNullable : Symbol(NonNullable, Decl(lib.es5.d.ts, --, --)) | ||
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type T1 = NonNullable<undefined>; | ||
>T1 : Symbol(T1, Decl(NonNullableInNonStrictMode.ts, 2, 28)) | ||
>NonNullable : Symbol(NonNullable, Decl(lib.es5.d.ts, --, --)) | ||
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type T2 = null & {}; | ||
>T2 : Symbol(T2, Decl(NonNullableInNonStrictMode.ts, 3, 33)) | ||
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type T3 = undefined & {}; | ||
>T3 : Symbol(T3, Decl(NonNullableInNonStrictMode.ts, 4, 20)) | ||
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type T4 = null & undefined; | ||
>T4 : Symbol(T4, Decl(NonNullableInNonStrictMode.ts, 5, 25)) | ||
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type T6 = null & { a: string } & {}; | ||
>T6 : Symbol(T6, Decl(NonNullableInNonStrictMode.ts, 6, 27)) | ||
>a : Symbol(a, Decl(NonNullableInNonStrictMode.ts, 7, 18)) | ||
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// Repro from #50519 | ||
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type NonNullableNew<T> = T & {}; | ||
>NonNullableNew : Symbol(NonNullableNew, Decl(NonNullableInNonStrictMode.ts, 7, 36)) | ||
>T : Symbol(T, Decl(NonNullableInNonStrictMode.ts, 11, 20)) | ||
>T : Symbol(T, Decl(NonNullableInNonStrictMode.ts, 11, 20)) | ||
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type NonNullableOld<T> = T extends null | undefined ? never : T; | ||
>NonNullableOld : Symbol(NonNullableOld, Decl(NonNullableInNonStrictMode.ts, 11, 32)) | ||
>T : Symbol(T, Decl(NonNullableInNonStrictMode.ts, 12, 20)) | ||
>T : Symbol(T, Decl(NonNullableInNonStrictMode.ts, 12, 20)) | ||
>T : Symbol(T, Decl(NonNullableInNonStrictMode.ts, 12, 20)) | ||
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type IsNullWithoutStrictNullChecks = NonNullableNew<null>; | ||
>IsNullWithoutStrictNullChecks : Symbol(IsNullWithoutStrictNullChecks, Decl(NonNullableInNonStrictMode.ts, 12, 64)) | ||
>NonNullableNew : Symbol(NonNullableNew, Decl(NonNullableInNonStrictMode.ts, 7, 36)) | ||
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type IsAlwaysNever = NonNullableOld<null>; | ||
>IsAlwaysNever : Symbol(IsAlwaysNever, Decl(NonNullableInNonStrictMode.ts, 14, 58)) | ||
>NonNullableOld : Symbol(NonNullableOld, Decl(NonNullableInNonStrictMode.ts, 11, 32)) | ||
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43 changes: 43 additions & 0 deletions
43
tests/baselines/reference/NonNullableInNonStrictMode.types
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=== tests/cases/compiler/NonNullableInNonStrictMode.ts === | ||
// These should all resolve to never | ||
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type T0 = NonNullable<null>; | ||
>T0 : never | ||
>null : null | ||
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type T1 = NonNullable<undefined>; | ||
>T1 : never | ||
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type T2 = null & {}; | ||
>T2 : never | ||
>null : null | ||
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type T3 = undefined & {}; | ||
>T3 : never | ||
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type T4 = null & undefined; | ||
>T4 : never | ||
>null : null | ||
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type T6 = null & { a: string } & {}; | ||
>T6 : never | ||
>null : null | ||
>a : string | ||
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// Repro from #50519 | ||
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type NonNullableNew<T> = T & {}; | ||
>NonNullableNew : NonNullableNew<T> | ||
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type NonNullableOld<T> = T extends null | undefined ? never : T; | ||
>NonNullableOld : NonNullableOld<T> | ||
>null : null | ||
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type IsNullWithoutStrictNullChecks = NonNullableNew<null>; | ||
>IsNullWithoutStrictNullChecks : never | ||
>null : null | ||
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type IsAlwaysNever = NonNullableOld<null>; | ||
>IsAlwaysNever : never | ||
>null : null | ||
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// @strict: false | ||
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// These should all resolve to never | ||
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type T0 = NonNullable<null>; | ||
type T1 = NonNullable<undefined>; | ||
type T2 = null & {}; | ||
type T3 = undefined & {}; | ||
type T4 = null & undefined; | ||
type T6 = null & { a: string } & {}; | ||
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// Repro from #50519 | ||
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type NonNullableNew<T> = T & {}; | ||
type NonNullableOld<T> = T extends null | undefined ? never : T; | ||
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type IsNullWithoutStrictNullChecks = NonNullableNew<null>; | ||
type IsAlwaysNever = NonNullableOld<null>; |