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tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithObjectLiteral.ts(30,10): error TS2453: The type argument for type parameter 'T' cannot be inferred from the usage. Consider specifying the type arguments explicitly.
Type argument candidate 'E1' is not a valid type argument because it is not a supertype of candidate '0'.
tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithObjectLiteral.ts(35,10): error TS2453: The type argument for type parameter 'T' cannot be inferred from the usage. Consider specifying the type arguments explicitly.
Type argument candidate 'E1' is not a valid type argument because it is not a supertype of candidate 'E2'.
==== tests/cases/conformance/expressions/functionCalls/typeArgumentInferenceWithObjectLiteral.ts (2 errors) ====
interface Computed<T> {
read(): T;
write(value: T);
}
function foo<T>(x: Computed<T>) { }
var s: string;
// Calls below should infer string for T and then assign that type to the value parameter
foo({
read: () => s,
write: value => s = value
});
foo({
write: value => s = value,
read: () => s
});
enum E1 { X }
enum E2 { X }
// Check that we infer from both a.r and b before fixing T in a.w
declare function f1<T, U>(a: { w: (x: T) => U; r: () => T; }, b: T): U;
var v1: number;
var v1 = f1({ w: x => x, r: () => 0 }, 0);
var v1 = f1({ w: x => x, r: () => 0 }, E1.X);
var v1 = f1({ w: x => x, r: () => E1.X }, 0);
~~
!!! error TS2453: The type argument for type parameter 'T' cannot be inferred from the usage. Consider specifying the type arguments explicitly.
!!! error TS2453: Type argument candidate 'E1' is not a valid type argument because it is not a supertype of candidate '0'.
var v2: E1;
var v2 = f1({ w: x => x, r: () => E1.X }, E1.X);
var v3 = f1({ w: x => x, r: () => E1.X }, E2.X); // Error
~~
!!! error TS2453: The type argument for type parameter 'T' cannot be inferred from the usage. Consider specifying the type arguments explicitly.
!!! error TS2453: Type argument candidate 'E1' is not a valid type argument because it is not a supertype of candidate 'E2'.
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