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tests/cases/compiler/indexTypeCheck.ts(2,2): error TS1021: An index signature must have a type annotation.
tests/cases/compiler/indexTypeCheck.ts(3,2): error TS1021: An index signature must have a type annotation.
tests/cases/compiler/indexTypeCheck.ts(17,2): error TS2413: 'number' index type 'number' is not assignable to 'string' index type 'string'.
tests/cases/compiler/indexTypeCheck.ts(22,2): error TS2413: 'number' index type 'Orange' is not assignable to 'string' index type 'Yellow'.
tests/cases/compiler/indexTypeCheck.ts(27,2): error TS2413: 'number' index type 'number' is not assignable to 'string' index type 'string'.
tests/cases/compiler/indexTypeCheck.ts(32,3): error TS1096: An index signature must have exactly one parameter.
tests/cases/compiler/indexTypeCheck.ts(36,3): error TS1268: An index signature parameter type must be 'string', 'number', 'symbol', or a template literal type.
tests/cases/compiler/indexTypeCheck.ts(51,8): error TS2538: Type 'Blue' cannot be used as an index type.
==== tests/cases/compiler/indexTypeCheck.ts (8 errors) ====
interface Red {
[n:number]; // ok
~~~~~~~~~~~
!!! error TS1021: An index signature must have a type annotation.
[s:string]; // ok
~~~~~~~~~~~
!!! error TS1021: An index signature must have a type annotation.
}
interface Blue {
[n:number]: any; // ok
[s:string]: any; // ok
}
interface Yellow {
[n:number]: Red; // ok
[s:string]: Red; // ok
}
interface Orange {
[n:number]: number; // ok
~~~~~~~~~~~~~~~~~~~
!!! error TS2413: 'number' index type 'number' is not assignable to 'string' index type 'string'.
[s:string]: string; // error
}
interface Green {
[n:number]: Orange; // error
~~~~~~~~~~~~~~~~~~~
!!! error TS2413: 'number' index type 'Orange' is not assignable to 'string' index type 'Yellow'.
[s:string]: Yellow; // ok
}
interface Cyan {
[n:number]: number; // error
~~~~~~~~~~~~~~~~~~~
!!! error TS2413: 'number' index type 'number' is not assignable to 'string' index type 'string'.
[s:string]: string; // ok
}
interface Purple {
[n:number, s:string]; // error
~
!!! error TS1096: An index signature must have exactly one parameter.
}
interface Magenta {
[p:Purple]; // error
~
!!! error TS1268: An index signature parameter type must be 'string', 'number', 'symbol', or a template literal type.
}
var yellow: Yellow;
var blue: Blue;
var s = "some string";
yellow[5]; // ok
yellow["hue"]; // ok
yellow[<any>{}]; // ok
s[0]; // error
s["s"]; // ok
s[<any>{}]; // ok
yellow[blue]; // error
~~~~
!!! error TS2538: Type 'Blue' cannot be used as an index type.
var x:number[];
x[0];
class Benchmark {
public results: { [x:string]: any; } = <{ [x:string]: any; }>{};
public addTimingFor(name: string, timing: number) {
this.results[name] = this.results[name];
}
}
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