25 lines
No EOL
1.7 KiB
Text
25 lines
No EOL
1.7 KiB
Text
==== tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceErrors.ts (4 errors) ====
|
|
// Generic call with multiple type parameters and only one used in parameter type annotation
|
|
function someGenerics1<T, U>(n: T, m: number) { }
|
|
someGenerics1<string, number>(3, 4); // Error
|
|
~
|
|
!!! Argument of type 'number' is not assignable to parameter of type 'string'.
|
|
|
|
// 2 parameter generic call with argument 1 of type parameter type and argument 2 of function type whose parameter is of type parameter type
|
|
function someGenerics4<T, U>(n: T, f: (x: U) => void) { }
|
|
someGenerics4<string, number>('', (x: string) => ''); // Error
|
|
~~~~~~~~~~~~~~~~~
|
|
!!! Argument of type '(x: string) => string' is not assignable to parameter of type '(x: number) => void'.
|
|
|
|
// 2 parameter generic call with argument 2 of type parameter type and argument 1 of function type whose parameter is of type parameter type
|
|
function someGenerics5<U, T>(n: T, f: (x: U) => void) { }
|
|
someGenerics5<number, string>('', (x: string) => ''); // Error
|
|
~~~~~~~~~~~~~~~~~
|
|
!!! Argument of type '(x: string) => string' is not assignable to parameter of type '(x: number) => void'.
|
|
|
|
// Generic call with multiple arguments of function types that each have parameters of the same generic type
|
|
function someGenerics6<A>(a: (a: A) => A, b: (b: A) => A, c: (c: A) => A) { }
|
|
someGenerics6<number>((n: number) => n, (n: string) => n, (n: number) => n); // Error
|
|
~~~~~~~~~~~~~~~~
|
|
!!! Argument of type '(n: string) => string' is not assignable to parameter of type '(b: number) => number'.
|
|
|