54 lines
2.5 KiB
Plaintext
54 lines
2.5 KiB
Plaintext
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments2.ts(29,10): error TS2453: The type argument for type parameter 'T' cannot be inferred from the usage. Consider specifying the type arguments explicitly.
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Type argument candidate 'number' is not a valid type argument because it is not a supertype of candidate 'string'.
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tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments2.ts(40,10): error TS2453: The type argument for type parameter 'T' cannot be inferred from the usage. Consider specifying the type arguments explicitly.
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Type argument candidate 'number' is not a valid type argument because it is not a supertype of candidate 'string'.
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==== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments2.ts (2 errors) ====
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// Generic functions used as arguments for function typed parameters are not used to make inferences from
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// Using construct signature arguments, no errors expected
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function foo<T>(x: new(a: T) => T) {
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return new x(null);
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}
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interface I {
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new <T>(x: T): T;
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}
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interface I2<T> {
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new (x: T): T;
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}
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var i: I;
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var i2: I2<string>;
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var a: {
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new <T>(x: T): T;
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}
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var r = foo(i); // any
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var r2 = foo<string>(i); // string
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var r3 = foo(i2); // string
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var r3b = foo(a); // any
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function foo2<T, U>(x: T, cb: new(a: T) => U) {
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return new cb(x);
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}
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var r4 = foo2(1, i2); // error
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~~~~
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!!! error TS2453: The type argument for type parameter 'T' cannot be inferred from the usage. Consider specifying the type arguments explicitly.
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!!! error TS2453: Type argument candidate 'number' is not a valid type argument because it is not a supertype of candidate 'string'.
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var r4b = foo2(1, a); // any
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var r5 = foo2(1, i); // any
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var r6 = foo2<string, string>('', i2); // string
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function foo3<T, U>(x: T, cb: new(a: T) => U, y: U) {
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return new cb(x);
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}
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var r7 = foo3(null, i, ''); // any
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var r7b = foo3(null, a, ''); // any
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var r8 = foo3(1, i2, 1); // error
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~~~~
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!!! error TS2453: The type argument for type parameter 'T' cannot be inferred from the usage. Consider specifying the type arguments explicitly.
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!!! error TS2453: Type argument candidate 'number' is not a valid type argument because it is not a supertype of candidate 'string'.
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var r9 = foo3<string, string>('', i2, ''); // string |