72 lines
3.3 KiB
Plaintext
72 lines
3.3 KiB
Plaintext
tests/cases/conformance/types/typeAliases/directDependenceBetweenTypeAliases.ts(4,6): error TS2456: Type alias 'T0' circularly references itself.
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tests/cases/conformance/types/typeAliases/directDependenceBetweenTypeAliases.ts(6,6): error TS2456: Type alias 'T0_2' circularly references itself.
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tests/cases/conformance/types/typeAliases/directDependenceBetweenTypeAliases.ts(11,6): error TS2456: Type alias 'T1' circularly references itself.
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tests/cases/conformance/types/typeAliases/directDependenceBetweenTypeAliases.ts(14,6): error TS2456: Type alias 'T2' circularly references itself.
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tests/cases/conformance/types/typeAliases/directDependenceBetweenTypeAliases.ts(16,6): error TS2456: Type alias 'T2_1' circularly references itself.
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tests/cases/conformance/types/typeAliases/directDependenceBetweenTypeAliases.ts(19,6): error TS2456: Type alias 'T3' circularly references itself.
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tests/cases/conformance/types/typeAliases/directDependenceBetweenTypeAliases.ts(22,6): error TS2456: Type alias 'T4' circularly references itself.
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tests/cases/conformance/types/typeAliases/directDependenceBetweenTypeAliases.ts(26,6): error TS2456: Type alias 'T5' circularly references itself.
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tests/cases/conformance/types/typeAliases/directDependenceBetweenTypeAliases.ts(30,6): error TS2456: Type alias 'T7' circularly references itself.
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==== tests/cases/conformance/types/typeAliases/directDependenceBetweenTypeAliases.ts (9 errors) ====
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// It is an error for the type specified in a type alias to depend on that type alias
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// A type alias directly depends on the type it aliases.
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type T0 = T0
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~~
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!!! error TS2456: Type alias 'T0' circularly references itself.
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type T0_1 = T0_2
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type T0_2 = T0_3
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~~~~
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!!! error TS2456: Type alias 'T0_2' circularly references itself.
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type T0_3 = T0_1
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// A type reference directly depends on the referenced type and each of the type arguments, if any.
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interface I<T> {}
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type T1 = I<T1>
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~~
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!!! error TS2456: Type alias 'T1' circularly references itself.
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// A union type directly depends on each of the constituent types.
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type T2 = T2 | string
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~~
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!!! error TS2456: Type alias 'T2' circularly references itself.
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class C<T> {}
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type T2_1 = T2_1[] | number
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~~~~
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!!! error TS2456: Type alias 'T2_1' circularly references itself.
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// An array type directly depends on its element type.
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type T3 = T3[]
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~~
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!!! error TS2456: Type alias 'T3' circularly references itself.
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// A tuple type directly depends on each of its element types.
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type T4 = [number, T4]
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~~
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!!! error TS2456: Type alias 'T4' circularly references itself.
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// A type query directly depends on the type of the referenced entity.
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var x: T5[] = []
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type T5 = typeof x
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~~
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!!! error TS2456: Type alias 'T5' circularly references itself.
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class C1<T> {}
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type T6 = T7 | number
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type T7 = typeof yy
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~~
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!!! error TS2456: Type alias 'T7' circularly references itself.
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var yy: [string, T8[]];
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type T8 = C<T6>
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// legal cases
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type T9 = () => T9
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type T10 = { x: T10 } | { new(v: T10): string }
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type T11 = T12[]
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type T12 = [T13, string]
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type T13 = typeof zz
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var zz: { x: T11 }
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