TypeScript/tests/baselines/reference/genericCallWithOverloadedConstructorTypedArguments2.errors.txt
2014-09-12 13:35:07 -07:00

46 lines
1.8 KiB
Plaintext

tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithOverloadedConstructorTypedArguments2.ts(31,20): error TS2345: Argument of type 'new <T>(x: T, y: T) => string' is not assignable to parameter of type '{ new (x: any): string; new (x: any, y?: any): string; }'.
==== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithOverloadedConstructorTypedArguments2.ts (1 errors) ====
// Function typed arguments with multiple signatures must be passed an implementation that matches all of them
// Inferences are made quadratic-pairwise to and from these overload sets
module NonGenericParameter {
var a: {
new(x: boolean): boolean;
new(x: string): string;
}
function foo4(cb: typeof a) {
return cb;
}
var b: { new <T, U>(x: T): U }
var r3 = foo4(b); // ok
}
module GenericParameter {
function foo5<T>(cb: { new(x: T): string; new(x: number): T }) {
return cb;
}
var a: { new <T>(x: T): T };
var r6 = foo5(a); // ok
function foo6<T>(cb: { new(x: T): string; new(x: T, y?: T): string }) {
return cb;
}
var b: { new <T>(x: T, y: T): string };
var r10 = foo6(b); // error
~
!!! error TS2345: Argument of type 'new <T>(x: T, y: T) => string' is not assignable to parameter of type '{ new (x: any): string; new (x: any, y?: any): string; }'.
function foo7<T>(x:T, cb: { new(x: T): string; new(x: T, y?: T): string }) {
return cb;
}
var r13 = foo7(1, a); // ok
var c: { new<T>(x: T): number; new<T>(x: number): T; }
var r14 = foo7(1, c); // ok
}