91 lines
2.8 KiB
TypeScript
91 lines
2.8 KiB
TypeScript
//// [destructuringObjectBindingPatternAndAssignment1ES6.ts]
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// In a destructuring assignment expression, the type of the expression on the right must be assignable to the assignment target on the left.
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// An expression of type S is considered assignable to an assignment target V if one of the following is true
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// V is an object assignment pattern and, for each assignment property P in V,
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// S is the type Any, or
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var { a1 }: any = undefined;
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var { a2 }: any = {};
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// V is an object assignment pattern and, for each assignment property P in V,
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// S has an apparent property with the property name specified in
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// P of a type that is assignable to the target given in P, or
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var { b1, } = { b1:1, };
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var { b2: { b21 } = { b21: "string" } } = { b2: { b21: "world" } };
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var {1: b3} = { 1: "string" };
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var {b4 = 1}: any = { b4: 100000 };
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var {b5: { b52 } } = { b5: { b52 } };
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// V is an object assignment pattern and, for each assignment property P in V,
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// P specifies a numeric property name and S has a numeric index signature
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// of a type that is assignable to the target given in P, or
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interface F {
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[idx: number]: boolean;
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}
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function foo(): F {
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return {
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1: true
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};
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}
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function bar(): F {
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return {
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2: true
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};
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}
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var {1: c0} = foo();
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var {1: c1} = bar();
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// V is an object assignment pattern and, for each assignment property P in V,
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// S has a string index signature of a type that is assignable to the target given in P
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interface F1 {
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[str: string]: number;
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}
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function foo1(): F1 {
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return {
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"prop1": 2
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}
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}
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var {"prop1": d1} = foo1();
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var {"prop2": d1} = foo1();
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//// [destructuringObjectBindingPatternAndAssignment1ES6.js]
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// In a destructuring assignment expression, the type of the expression on the right must be assignable to the assignment target on the left.
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// An expression of type S is considered assignable to an assignment target V if one of the following is true
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// V is an object assignment pattern and, for each assignment property P in V,
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// S is the type Any, or
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var { a1 } = undefined;
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var { a2 } = {};
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// V is an object assignment pattern and, for each assignment property P in V,
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// S has an apparent property with the property name specified in
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// P of a type that is assignable to the target given in P, or
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var { b1, } = { b1: 1, };
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var { b2: { b21 } = { b21: "string" } } = { b2: { b21: "world" } };
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var { 1: b3 } = { 1: "string" };
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var { b4 = 1 } = { b4: 100000 };
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var { b5: { b52 } } = { b5: { b52 } };
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function foo() {
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return {
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1: true
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};
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}
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function bar() {
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return {
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2: true
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};
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}
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var { 1: c0 } = foo();
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var { 1: c1 } = bar();
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function foo1() {
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return {
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"prop1": 2
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};
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}
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var { "prop1": d1 } = foo1();
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var { "prop2": d1 } = foo1();
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