1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
tests/cases/compiler/overloadResolutionTest1.ts(8,16): error TS2345: Argument of type '{ a: "s"; }[]' is not assignable to parameter of type '{ a: boolean; }[]'.
Type '{ a: "s"; }' is not assignable to type '{ a: boolean; }'.
Types of property 'a' are incompatible.
Type '"s"' is not assignable to type 'boolean'.
tests/cases/compiler/overloadResolutionTest1.ts(19,15): error TS2345: Argument of type '{ a: "s"; }' is not assignable to parameter of type '{ a: boolean; }'.
Types of property 'a' are incompatible.
Type '"s"' is not assignable to type 'boolean'.
tests/cases/compiler/overloadResolutionTest1.ts(25,14): error TS2345: Argument of type '{ a: boolean; }' is not assignable to parameter of type '{ a: string; }'.
Types of property 'a' are incompatible.
Type 'boolean' is not assignable to type 'string'.
==== tests/cases/compiler/overloadResolutionTest1.ts (3 errors) ====
function foo(bar:{a:number;}[]):string;
function foo(bar:{a:boolean;}[]):number;
function foo(bar:{a:any;}[]):any{ return bar };
var x1 = foo([{a:true}]); // works
var x11 = foo([{a:0}]); // works
var x111 = foo([{a:"s"}]); // error - does not match any signature
~~~~~~~~~
!!! error TS2345: Argument of type '{ a: "s"; }[]' is not assignable to parameter of type '{ a: boolean; }[]'.
!!! error TS2345: Type '{ a: "s"; }' is not assignable to type '{ a: boolean; }'.
!!! error TS2345: Types of property 'a' are incompatible.
!!! error TS2345: Type '"s"' is not assignable to type 'boolean'.
var x1111 = foo([{a:null}]); // works - ambiguous call is resolved to be the first in the overload set so this returns a string
function foo2(bar:{a:number;}):string;
function foo2(bar:{a:boolean;}):number;
function foo2(bar:{a:any;}):any{ return bar };
var x2 = foo2({a:0}); // works
var x3 = foo2({a:true}); // works
var x4 = foo2({a:"s"}); // error
~~~~~~~
!!! error TS2345: Argument of type '{ a: "s"; }' is not assignable to parameter of type '{ a: boolean; }'.
!!! error TS2345: Types of property 'a' are incompatible.
!!! error TS2345: Type '"s"' is not assignable to type 'boolean'.
function foo4(bar:{a:number;}):number;
function foo4(bar:{a:string;}):string;
function foo4(bar:{a:any;}):any{ return bar };
var x = foo4({a:true}); // error
~~~~~~~~
!!! error TS2345: Argument of type '{ a: boolean; }' is not assignable to parameter of type '{ a: string; }'.
!!! error TS2345: Types of property 'a' are incompatible.
!!! error TS2345: Type 'boolean' is not assignable to type 'string'.
|
