163 lines
3.9 KiB
TypeScript
163 lines
3.9 KiB
TypeScript
//// [functionOverloadErrors.ts]
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//Function overload signature with initializer
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function fn1(x = 3);
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function fn1() { }
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//Multiple function overload signatures that are identical
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function fn2a();
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function fn2a();
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function fn2a() {
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}
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function fn2b(n: number[]);
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function fn2b(n: Array<number>);
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function fn2b() {
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}
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//Multiple function overload signatures that differ only by return type
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function fn3(x: string): string;
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function fn3(y: string): number;
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function fn3(): any {
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return null;
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}
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//Function overload with rest param and another with only an optional parameter
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function fn6(...t: any[]);
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function fn6(x?: any);
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function fn6() { }
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//Function overload with rest param and another with only optional parameters
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function fn7(...t: any[]);
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function fn7(x?: any, y?: any, z?: any);
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function fn7() { }
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//Function overloads that differ only by type parameter name
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function fn8<T>(n: string);
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function fn8<S>(n: string);
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function fn8() { }
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//Function overloads that differ only by type parameter name when used in parameter type annotations
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function fn9<T>(n: T);
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function fn9<S>(n: S);
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function fn9() { }
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//Function overloads that differ only by type parameter constraints
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function fn10<T extends Window>();
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function fn10<S extends Date>();
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function fn10() { }
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// (actually OK)
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//Function overloads that differ only by type parameter constraints where constraints are structually identical
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function fn11<T extends Window>();
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function fn11<S extends typeof window>();
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function fn11() { }
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//Function overloads that differ only by type parameter constraints where constraints include infinitely recursive type reference
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interface List<T> {
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parents: List<List<T>>;
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}
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function fn12<T extends List<List<any>>>();
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function fn12<T extends List<any>>();
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function fn12() { }
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//Function overloads that differ by accessibility
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class cls {
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public f();
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private f(s: string);
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f() { }
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private g(s: string);
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public g();
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g() { }
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}
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//Function overloads with differing export
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module M {
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export function fn1();
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function fn1(n: string);
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function fn1() { }
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function fn2(n: string);
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export function fn2();
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export function fn2() { }
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}
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//Function overloads with differing ambience
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declare function dfn1();
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function dfn1(s: string);
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function dfn1() { }
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function dfn2();
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declare function dfn2(s: string);
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function dfn2() { }
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//Function overloads with fewer params than implementation signature
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function fewerParams();
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function fewerParams(n: string) {
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}
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//Function implementation whose parameter types are not assignable to all corresponding overload signature parameters
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function fn13(n: string);
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function fn13(n: number) { }
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//Function overloads where return types are not all subtype of implementation return type
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function fn14(n: string): string;
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function fn14() {
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return 3;
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}
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//Function overloads where return types are different infinitely recursive type reference
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function fn15<T extends List<List<any>>>(): T;
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function fn15<T extends List<any>>(): T;
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function fn15() {
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return undefined;
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}
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//Function overloads which use initializer expressions
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function initExpr(n = 13);
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function initExpr() { }
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//// [functionOverloadErrors.js]
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function fn1() { }
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function fn2a() {
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}
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function fn2b() {
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}
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function fn3() {
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return null;
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}
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function fn6() { }
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function fn7() { }
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function fn8() { }
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function fn9() { }
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function fn10() { }
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function fn11() { }
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function fn12() { }
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//Function overloads that differ by accessibility
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var cls = (function () {
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function cls() {
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}
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cls.prototype.f = function () { };
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cls.prototype.g = function () { };
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return cls;
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})();
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//Function overloads with differing export
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var M;
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(function (M) {
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function fn1() { }
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function fn2() { }
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M.fn2 = fn2;
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})(M || (M = {}));
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function dfn1() { }
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function dfn2() { }
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function fewerParams(n) {
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}
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function fn13(n) { }
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function fn14() {
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return 3;
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}
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function fn15() {
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return undefined;
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}
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function initExpr() { }
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