TypeScript/tests/baselines/reference/overloadAssignmentCompat.js
2014-08-14 06:42:18 -07:00

68 lines
1.6 KiB
JavaScript

//// [overloadAssignmentCompat.ts]
// ok - overload signatures are assignment compatible with their implementation
class Accessor {}
function attr(name: string): string;
function attr(name: string, value: string): Accessor;
function attr(map: any): Accessor;
function attr(nameOrMap: any, value?: string): any {
if (nameOrMap && typeof nameOrMap === "object") {
// handle map case
return new Accessor;
}
else {
// handle string case
return "s";
}
}
// not ok - there's an assignment compat error
function attr2(name: string): string;
function attr2(name: string, value: string): Accessor;
function attr2(map: any): Accessor;
function attr2(nameOrMap: any, value?: string): string {
if (nameOrMap && typeof nameOrMap === "object") {
// handle map case
return "t";
}
else {
// handle string case
return "s";
}
}
// error - signatures are not assignment compatible
function foo():number;
function foo():string { return "a" };
//// [overloadAssignmentCompat.js]
// ok - overload signatures are assignment compatible with their implementation
var Accessor = (function () {
function Accessor() {
}
return Accessor;
})();
function attr(nameOrMap, value) {
if (nameOrMap && typeof nameOrMap === "object") {
return new Accessor;
}
else {
return "s";
}
}
function attr2(nameOrMap, value) {
if (nameOrMap && typeof nameOrMap === "object") {
return "t";
}
else {
return "s";
}
}
function foo() {
return "a";
}
;