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Get narrowable types for new expressions (#57382)

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Mateusz Burzyński
2024-02-28 21:33:38 +01:00
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parent f23927a806
commit 63dd17baef
5 changed files with 57 additions and 0 deletions
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src/compiler/checker.ts
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@@ -29071,6 +29071,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
return parent.kind === SyntaxKind.PropertyAccessExpression ||
parent.kind === SyntaxKind.QualifiedName ||
parent.kind === SyntaxKind.CallExpression && (parent as CallExpression).expression === node ||
parent.kind === SyntaxKind.NewExpression && (parent as NewExpression).expression === node ||
parent.kind === SyntaxKind.ElementAccessExpression && (parent as ElementAccessExpression).expression === node &&
!(someType(type, isGenericTypeWithoutNullableConstraint) && isGenericIndexType(getTypeOfExpression((parent as ElementAccessExpression).argumentExpression)));
}