16 lines
790 B
Plaintext
16 lines
790 B
Plaintext
==== tests/cases/compiler/typeParameterArgumentEquivalence.ts (2 errors) ====
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function foo<T>() {
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var x: (item: number) => boolean;
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var y: (item: T) => boolean;
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x = y; // Should be an error
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~
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!!! error TS2322: Type '(item: T) => boolean' is not assignable to type '(item: number) => boolean':
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!!! error TS2322: Types of parameters 'item' and 'item' are incompatible:
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!!! error TS2322: Type 'T' is not assignable to type 'number'.
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y = x; // Shound be an error
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~
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!!! error TS2322: Type '(item: number) => boolean' is not assignable to type '(item: T) => boolean':
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!!! error TS2322: Types of parameters 'item' and 'item' are incompatible:
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!!! error TS2322: Type 'number' is not assignable to type 'T'.
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}
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