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Fixed crash in hasVisibleDeclarations related to binding elements (#61352)

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This commit is contained in:
Mateusz Burzyński
2025-06-30 11:57:47 -07:00
committed by GitHub
parent c33f83ac9b
commit 2ea2ecfdc1
5 changed files with 187 additions and 1 deletions
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src/compiler/checker.ts
+8 -1
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@@ -5981,7 +5981,14 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
return addVisibleAlias(declaration, declaration.parent.parent.parent.parent);
}
else if (symbol.flags & SymbolFlags.BlockScopedVariable) {
const variableStatement = findAncestor(declaration, isVariableStatement)!;
const rootDeclaration = walkUpBindingElementsAndPatterns(declaration);
if (rootDeclaration.kind === SyntaxKind.Parameter) {
return false;
}
const variableStatement = rootDeclaration.parent.parent;
if (variableStatement.kind !== SyntaxKind.VariableStatement) {
return false;
}
if (hasSyntacticModifier(variableStatement, ModifierFlags.Export)) {
return true;
}