133 lines
2.9 KiB
Text
133 lines
2.9 KiB
Text
=== tests/cases/conformance/es6/destructuring/destructuringObjectBindingPatternAndAssignment1ES5.ts ===
|
|
// In a destructuring assignment expression, the type of the expression on the right must be assignable to the assignment target on the left.
|
|
// An expression of type S is considered assignable to an assignment target V if one of the following is true
|
|
|
|
// V is an object assignment pattern and, for each assignment property P in V,
|
|
// S is the type Any, or
|
|
var { a1 }: any = undefined;
|
|
>a1 : any
|
|
>undefined : undefined
|
|
|
|
var { a2 }: any = {};
|
|
>a2 : any
|
|
>{} : {}
|
|
|
|
// V is an object assignment pattern and, for each assignment property P in V,
|
|
// S has an apparent property with the property name specified in
|
|
// P of a type that is assignable to the target given in P, or
|
|
var { b1, } = { b1:1, };
|
|
>b1 : number
|
|
>{ b1:1, } : { b1: number; }
|
|
>b1 : number
|
|
>1 : number
|
|
|
|
var { b2: { b21 } = { b21: "string" } } = { b2: { b21: "world" } };
|
|
>b2 : any
|
|
>b21 : string
|
|
>{ b21: "string" } : { b21: string; }
|
|
>b21 : string
|
|
>"string" : string
|
|
>{ b2: { b21: "world" } } : { b2: { b21: string; }; }
|
|
>b2 : { b21: string; }
|
|
>{ b21: "world" } : { b21: string; }
|
|
>b21 : string
|
|
>"world" : string
|
|
|
|
var {1: b3} = { 1: "string" };
|
|
>b3 : string
|
|
>{ 1: "string" } : { 1: string; }
|
|
>"string" : string
|
|
|
|
var {b4 = 1}: any = { b4: 100000 };
|
|
>b4 : number
|
|
>1 : number
|
|
>{ b4: 100000 } : { b4: number; }
|
|
>b4 : number
|
|
>100000 : number
|
|
|
|
var {b5: { b52 } } = { b5: { b52 } };
|
|
>b5 : any
|
|
>b52 : any
|
|
>{ b5: { b52 } } : { b5: { b52: any; }; }
|
|
>b5 : { b52: any; }
|
|
>{ b52 } : { b52: any; }
|
|
>b52 : any
|
|
|
|
// V is an object assignment pattern and, for each assignment property P in V,
|
|
// P specifies a numeric property name and S has a numeric index signature
|
|
// of a type that is assignable to the target given in P, or
|
|
|
|
interface F {
|
|
>F : F
|
|
|
|
[idx: number]: boolean;
|
|
>idx : number
|
|
}
|
|
|
|
function foo(): F {
|
|
>foo : () => F
|
|
>F : F
|
|
|
|
return {
|
|
>{ 1: true } : { [x: number]: boolean; 1: boolean; }
|
|
|
|
1: true
|
|
>true : boolean
|
|
|
|
};
|
|
}
|
|
|
|
function bar(): F {
|
|
>bar : () => F
|
|
>F : F
|
|
|
|
return {
|
|
>{ 2: true } : { [x: number]: boolean; 2: boolean; }
|
|
|
|
2: true
|
|
>true : boolean
|
|
|
|
};
|
|
}
|
|
var {1: c0} = foo();
|
|
>c0 : boolean
|
|
>foo() : F
|
|
>foo : () => F
|
|
|
|
var {1: c1} = bar();
|
|
>c1 : boolean
|
|
>bar() : F
|
|
>bar : () => F
|
|
|
|
// V is an object assignment pattern and, for each assignment property P in V,
|
|
// S has a string index signature of a type that is assignable to the target given in P
|
|
|
|
interface F1 {
|
|
>F1 : F1
|
|
|
|
[str: string]: number;
|
|
>str : string
|
|
}
|
|
|
|
function foo1(): F1 {
|
|
>foo1 : () => F1
|
|
>F1 : F1
|
|
|
|
return {
|
|
>{ "prop1": 2 } : { [x: string]: number; "prop1": number; }
|
|
|
|
"prop1": 2
|
|
>2 : number
|
|
}
|
|
}
|
|
|
|
var {"prop1": d1} = foo1();
|
|
>d1 : number
|
|
>foo1() : F1
|
|
>foo1 : () => F1
|
|
|
|
var {"prop2": d1} = foo1();
|
|
>d1 : number
|
|
>foo1() : F1
|
|
>foo1 : () => F1
|
|
|