66 lines
1.8 KiB
JavaScript
66 lines
1.8 KiB
JavaScript
//// [typeArgumentInferenceWithObjectLiteral.ts]
|
|
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);
|
|
|
|
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
|
|
|
|
|
|
//// [typeArgumentInferenceWithObjectLiteral.js]
|
|
function foo(x) { }
|
|
var s;
|
|
// Calls below should infer string for T and then assign that type to the value parameter
|
|
foo({
|
|
read: function () { return s; },
|
|
write: function (value) { return s = value; }
|
|
});
|
|
foo({
|
|
write: function (value) { return s = value; },
|
|
read: function () { return s; }
|
|
});
|
|
var E1;
|
|
(function (E1) {
|
|
E1[E1["X"] = 0] = "X";
|
|
})(E1 || (E1 = {}));
|
|
var E2;
|
|
(function (E2) {
|
|
E2[E2["X"] = 0] = "X";
|
|
})(E2 || (E2 = {}));
|
|
var v1;
|
|
var v1 = f1({ w: function (x) { return x; }, r: function () { return 0; } }, 0);
|
|
var v1 = f1({ w: function (x) { return x; }, r: function () { return 0; } }, 0 /* X */);
|
|
var v1 = f1({ w: function (x) { return x; }, r: function () { return 0 /* X */; } }, 0);
|
|
var v2;
|
|
var v2 = f1({ w: function (x) { return x; }, r: function () { return 0 /* X */; } }, 0 /* X */);
|
|
var v3 = f1({ w: function (x) { return x; }, r: function () { return 0 /* X */; } }, 0 /* X */); // Error
|