412ecbc291
* Reduce void | undefined only in conjunction with subtype reduction * Accept new baselines * Add regression test
38 lines
798 B
Plaintext
38 lines
798 B
Plaintext
=== tests/cases/conformance/expressions/optionalChaining/callChain/callChainInference.ts ===
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// Repro from #42404
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interface Y {
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foo<T>(this: T, arg: keyof T): void;
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>foo : <T>(this: T, arg: keyof T) => void
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>this : T
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>arg : keyof T
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a: number;
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>a : number
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b: string;
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>b : string
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}
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declare const value: Y | undefined;
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>value : Y | undefined
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if (value) {
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>value : Y | undefined
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value?.foo("a");
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>value?.foo("a") : void
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>value?.foo : <T>(this: T, arg: keyof T) => void
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>value : Y
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>foo : <T>(this: T, arg: keyof T) => void
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>"a" : "a"
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}
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value?.foo("a");
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>value?.foo("a") : void | undefined
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>value?.foo : (<T>(this: T, arg: keyof T) => void) | undefined
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>value : Y | undefined
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>foo : (<T>(this: T, arg: keyof T) => void) | undefined
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>"a" : "a"
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