42 lines
1.2 KiB
Plaintext
42 lines
1.2 KiB
Plaintext
tests/cases/conformance/interfaces/declarationMerging/mergedInterfacesWithMultipleBases4.ts(19,11): error TS2320: Interface 'A<T>' cannot simultaneously extend types 'C<string>' and 'C<number>'.
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Named properties 'a' of types 'C<string>' and 'C<number>' are not identical.
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==== tests/cases/conformance/interfaces/declarationMerging/mergedInterfacesWithMultipleBases4.ts (1 errors) ====
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// merged interfaces behave as if all extends clauses from each declaration are merged together
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class C<T> {
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a: T;
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}
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class C2<T> {
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b: T;
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}
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class C3<T> {
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c: T;
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}
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class C4<T> {
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d: T;
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}
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interface A<T> extends C<string>, C3<string> { // error
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~
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!!! error TS2320: Interface 'A<T>' cannot simultaneously extend types 'C<string>' and 'C<number>'.
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!!! error TS2320: Named properties 'a' of types 'C<string>' and 'C<number>' are not identical.
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y: T;
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}
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interface A<T> extends C<number>, C4<string> {
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z: T;
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}
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class D implements A<boolean> {
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a: string;
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b: string;
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c: string;
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d: string;
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y: boolean;
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z: boolean;
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} |