54 lines
No EOL
3.4 KiB
Text
54 lines
No EOL
3.4 KiB
Text
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(26,10): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
|
|
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(30,15): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
|
|
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(33,15): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
|
|
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(34,16): error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
|
|
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts(35,15): error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
|
|
|
|
|
|
==== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithFunctionTypedArguments.ts (5 errors) ====
|
|
// Generic functions used as arguments for function typed parameters are not used to make inferences from
|
|
// Using function arguments, no errors expected
|
|
|
|
function foo<T>(x: (a: T) => T) {
|
|
return x(null);
|
|
}
|
|
|
|
var r = foo(<U>(x: U) => ''); // {}
|
|
var r2 = foo<string>(<U>(x: U) => ''); // string
|
|
var r3 = foo(x => ''); // {}
|
|
|
|
function foo2<T, U>(x: T, cb: (a: T) => U) {
|
|
return cb(x);
|
|
}
|
|
|
|
var r4 = foo2(1, function <Z>(a: Z) { return '' }); // string, contextual signature instantiation is applied to generic functions
|
|
var r5 = foo2(1, (a) => ''); // string
|
|
var r6 = foo2<string, number>('', <Z>(a: Z) => 1);
|
|
|
|
function foo3<T, U>(x: T, cb: (a: T) => U, y: U) {
|
|
return cb(x);
|
|
}
|
|
|
|
var r7 = foo3(1, <Z>(a: Z) => '', ''); // string
|
|
|
|
var r8 = foo3(1, function (a) { return '' }, 1); // error
|
|
~~~~
|
|
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
|
|
var r9 = foo3<number, string>(1, (a) => '', ''); // string
|
|
|
|
function other<T, U>(t: T, u: U) {
|
|
var r10 = foo2(1, (x: T) => ''); // error
|
|
~~~~
|
|
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
|
|
var r10 = foo2(1, (x) => ''); // string
|
|
|
|
var r11 = foo3(1, (x: T) => '', ''); // error
|
|
~~~~
|
|
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
|
|
var r11b = foo3(1, (x: T) => '', 1); // error
|
|
~~~~
|
|
!!! error TS2448: The type argument for type parameter 'T' cannot be inferred from the usage. Try specifying the type arguments explicitly.
|
|
var r12 = foo3(1, function (a) { return '' }, 1); // error
|
|
~~~~
|
|
!!! error TS2448: The type argument for type parameter 'U' cannot be inferred from the usage. Try specifying the type arguments explicitly.
|
|
} |