14 lines
549 B
Plaintext
14 lines
549 B
Plaintext
==== 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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!!! 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'. |