fixed crash

microsoft · Oct 12, 2023 · 672e797 · 672e797
1 parent 0068b37
commit 672e797
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -5665,7 +5665,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
             if (getSymbolIfSameReference(exported, symbol)) {
                 return exported;
             }
-            if (symbol.flags & SymbolFlags.TypeAlias) {
+            if (symbol.flags & SymbolFlags.TypeAlias && exported.declarations?.find(isTypeAlias)) {
                 const aliasSymbol = getDeclaredTypeOfTypeAlias(exported).aliasSymbol;
                 if (aliasSymbol && getSymbolIfSameReference(aliasSymbol, symbol)) {
                     return exported;