From 0c5878dfb119f2c0a9620b4f23a05c9bf6aa5dab Mon Sep 17 00:00:00 2001 From: Ryan Cavanaugh Date: Tue, 3 Mar 2020 10:47:07 -0800 Subject: [PATCH] `symbol.parent` really is possibly sometimes undefined here. (#37159) Fixes #37158 --- src/services/rename.ts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/services/rename.ts b/src/services/rename.ts index 037c7f8eb23..4cdb4f14dc8 100644 --- a/src/services/rename.ts +++ b/src/services/rename.ts @@ -24,7 +24,7 @@ namespace ts.Rename { } // Cannot rename `default` as in `import { default as foo } from "./someModule"; - if (isIdentifier(node) && node.originalKeywordKind === SyntaxKind.DefaultKeyword && symbol.parent!.flags & SymbolFlags.Module) { + if (isIdentifier(node) && node.originalKeywordKind === SyntaxKind.DefaultKeyword && symbol.parent && symbol.parent.flags & SymbolFlags.Module) { return undefined; }