21 lines
942 B
Plaintext
21 lines
942 B
Plaintext
tests/cases/compiler/generics4.ts(7,1): error TS2322: Type 'C<Y>' is not assignable to type 'C<X>'.
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Type 'Y' is not assignable to type 'X'.
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Types of property 'f' are incompatible.
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Type '() => boolean' is not assignable to type '() => string'.
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Type 'boolean' is not assignable to type 'string'.
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==== tests/cases/compiler/generics4.ts (1 errors) ====
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class C<T> { private x: T; }
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interface X { f(): string; }
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interface Y { f(): boolean; }
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var a: C<X>;
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var b: C<Y>;
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a = b; // Not ok - return types of "f" are different
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~
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!!! error TS2322: Type 'C<Y>' is not assignable to type 'C<X>'.
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!!! error TS2322: Type 'Y' is not assignable to type 'X'.
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!!! error TS2322: Types of property 'f' are incompatible.
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!!! error TS2322: Type '() => boolean' is not assignable to type '() => string'.
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!!! error TS2322: Type 'boolean' is not assignable to type 'string'. |