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Missed method check: Assigning to a callback variable or property #2777

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Dionysusnu opened this issue Aug 22, 2024 · 0 comments

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Dionysusnu commented

let callback = () => 1;
class A {
	constructor(public n: number) {
		// Should error, but doesn't
		callback = this.getN;
	}
	getN() {
		return this.n;
	}
}

new A(2);

// Runtime error: Attempt to index nil with 'n'
callback();

Also happens if callback is a property access, for example MarketplaceService.ProcessReceipt = this.processProduct

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