TypeScript/tests/baselines/reference/assignmentCompatWithCallSignatures.js
2014-07-12 17:30:19 -07:00

81 lines
1.3 KiB
JavaScript

//// [assignmentCompatWithCallSignatures.ts]
// void returning call signatures can be assigned a non-void returning call signature that otherwise matches
interface T {
(x: number): void;
}
var t: T;
var a: { (x: number): void };
t = a;
a = t;
interface S {
(x: number): string;
}
var s: S;
var a2: { (x: number): string };
t = s;
t = a2;
a = s;
a = a2;
t = <T>(x: T) => 1;
t = () => 1;
t = function (x: number) { return ''; }
a = <T>(x: T) => 1;
a = () => 1;
a = function (x: number) { return ''; }
interface S2 {
(x: string): void;
}
var s2: S2;
var a3: { (x: string): void };
// these are errors
t = s2;
t = a3;
t = (x: string) => 1;
t = function (x: string) { return ''; }
a = s2;
a = a3;
a = (x: string) => 1;
a = function (x: string) { return ''; }
//// [assignmentCompatWithCallSignatures.js]
var t;
var a;
t = a;
a = t;
var s;
var a2;
t = s;
t = a2;
a = s;
a = a2;
t = function (x) { return 1; };
t = function () { return 1; };
t = function (x) {
return '';
};
a = function (x) { return 1; };
a = function () { return 1; };
a = function (x) {
return '';
};
var s2;
var a3;
t = s2;
t = a3;
t = function (x) { return 1; };
t = function (x) {
return '';
};
a = s2;
a = a3;
a = function (x) { return 1; };
a = function (x) {
return '';
};