52 lines
1.4 KiB
Plaintext
52 lines
1.4 KiB
Plaintext
==== tests/cases/compiler/overload1.ts (6 errors) ====
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module O {
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export class A {
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}
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export class B extends A {
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}
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export class C extends B {
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}
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export interface I {
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f(s:string):number;
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f(n:number):string;
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g(n1:number,n2:number):number;
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g(n:number):string;
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g(a:A):C;
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g(c:C):string;
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h(s1:string,s2:number):string;
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h(s1:number,s2:string):number;
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}
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}
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declare var x:O.I;
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var e:string=x.g(new O.A()); // matches overload but bad assignment
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~
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!!! Type 'C' is not assignable to type 'string'.
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var y:string=x.f(3); // good
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y=x.f("nope"); // can't assign number to string
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~
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!!! Type 'number' is not assignable to type 'string'.
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var z:string=x.g(x.g(3,3)); // good
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z=x.g(2,2,2); // no match
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~~~~~~~~~~
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!!! Supplied parameters do not match any signature of call target.
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z=x.g(); // no match
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~~~~~
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!!! Supplied parameters do not match any signature of call target.
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z=x.g(new O.B()); // ambiguous (up and down conversion)
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~
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!!! Type 'C' is not assignable to type 'string'.
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z=x.h(2,2); // no match
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~
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!!! Argument of type 'number' is not assignable to parameter of type 'string'.
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z=x.h("hello",0); // good
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var v=x.g;
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