From a4c14a2cdc67a329251d4d47b058a6b371ee66f5 Mon Sep 17 00:00:00 2001
From: Eli Barzilay <eli@barzilay.org>
Date: Thu, 4 Jun 2020 02:00:28 -0400
Subject: [PATCH] `getSymbolDisplayPartsDocumentationAndSymbolKind`: use actual
 `symbol.flags` for `getAliasedSymbol`

Fixes #35347.
---
 src/services/symbolDisplay.ts              |  3 ++-
 tests/cases/fourslash/quickInfoJSExport.ts | 24 ++++++++++++++++++++++
 2 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 tests/cases/fourslash/quickInfoJSExport.ts

diff --git a/src/services/symbolDisplay.ts b/src/services/symbolDisplay.ts
index e6891bc12259d..d62be2649031a 100644
--- a/src/services/symbolDisplay.ts
+++ b/src/services/symbolDisplay.ts
@@ -379,7 +379,8 @@ namespace ts.SymbolDisplay {
                 }
             }
         }
-        if (symbolFlags & SymbolFlags.Alias) {
+        // don't use symbolFlags since getAliasedSymbol requires the flag on the symbol itself
+        if (symbol.flags & SymbolFlags.Alias) {
             prefixNextMeaning();
             if (!hasAddedSymbolInfo) {
                 const resolvedSymbol = typeChecker.getAliasedSymbol(symbol);
diff --git a/tests/cases/fourslash/quickInfoJSExport.ts b/tests/cases/fourslash/quickInfoJSExport.ts
new file mode 100644
index 0000000000000..24a9bd00fa30b
--- /dev/null
+++ b/tests/cases/fourslash/quickInfoJSExport.ts
@@ -0,0 +1,24 @@
+/// <reference path="fourslash.ts" />
+
+// GH #35347
+
+// @Filename: a.js
+// @allowJs: true
+//// /**
+////  * @enum {string}
+////  */
+//// const testString = {
+////     one: "1",
+////     two: "2"
+//// };
+////
+//// export { test/**/String };
+
+verify.quickInfoAt("",
+`type testString = string
+(alias) type testString = any
+(alias) const testString: {
+    one: string;
+    two: string;
+}
+export testString`);