7a1c5b7a20
* Avoid expensive relationship checking in mapped type member resolution * Accept new baselines
38 lines
763 B
Plaintext
38 lines
763 B
Plaintext
=== tests/cases/compiler/definiteAssignmentOfDestructuredVariable.ts ===
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// https://github.com/Microsoft/TypeScript/issues/20994
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interface Options {
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a?: number | object;
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>a : number | object | undefined
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b: () => void;
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>b : () => void
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}
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class C<T extends Options> {
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>C : C<T>
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foo!: { [P in keyof T]: T[P] }
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>foo : { [P in keyof T]: T[P]; }
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method() {
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>method : () => void
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let { a, b } = this.foo;
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>a : T["a"] | undefined
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>b : T["b"]
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>this.foo : { [P in keyof T]: T[P]; }
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>this : this
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>foo : { [P in keyof T]: T[P]; }
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!(a && b);
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>!(a && b) : boolean
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>(a && b) : T["b"] | undefined
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>a && b : T["b"] | undefined
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>a : T["a"] | undefined
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>b : T["b"]
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a;
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>a : T["a"] | undefined
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}
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}
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