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tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObjectTypeArgsAndConstraints4.ts(19,17): error TS2345: Argument of type 'C' is not assignable to parameter of type 'D'.
Property 'y' is missing in type 'C' but required in type 'D'.
tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObjectTypeArgsAndConstraints4.ts(30,24): error TS2345: Argument of type 'C' is not assignable to parameter of type 'T'.
==== tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObjectTypeArgsAndConstraints4.ts (2 errors) ====
// Generic call with constraints infering type parameter from object member properties
class C {
x: string;
}
class D {
x: string;
y: string;
}
function foo<T, U extends T>(t: T, t2: U) {
return (x: T) => t2;
}
var c: C;
var d: D;
var r = foo(c, d);
var r2 = foo(d, c); // error because C does not extend D
~
!!! error TS2345: Argument of type 'C' is not assignable to parameter of type 'D'.
!!! error TS2345: Property 'y' is missing in type 'C' but required in type 'D'.
!!! related TS2728 tests/cases/conformance/types/typeRelationships/typeInference/genericCallWithObjectTypeArgsAndConstraints4.ts:9:5: 'y' is declared here.
var r3 = foo(c, { x: '', foo: c });
var r4 = foo(null, null);
var r5 = foo({}, null);
var r6 = foo(null, {});
var r7 = foo({}, {});
var r8 = foo(() => { }, () => { });
var r9 = foo(() => { }, () => 1);
function other<T, U extends T>() {
var r4 = foo(c, d);
var r5 = foo<T, U>(c, d); // error
~
!!! error TS2345: Argument of type 'C' is not assignable to parameter of type 'T'.
}
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