From d4624e6af98a2d46beb5bec539d040c99e96b1af Mon Sep 17 00:00:00 2001
From: kingwl <kingwenlu@gmail.com>
Date: Wed, 20 May 2020 21:36:18 +0800
Subject: [PATCH] fix changes

---
 src/compiler/checker.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index e118403e407c8..2cafef7b561d7 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -9974,7 +9974,7 @@ namespace ts {
             const declaration = getIndexDeclarationOfIndexSymbol(indexSymbol, indexKind);
             if (!declaration) return undefined;
             return createIndexInfo(declaration.type ? getTypeFromTypeNode(declaration.type) : anyType,
-                hasModifier(declaration, ModifierFlags.Readonly), declaration);
+                hasEffectiveModifier(declaration, ModifierFlags.Readonly), declaration);
         }
 
         function resolveReverseMappedTypeMembers(type: ReverseMappedType) {