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-rw-r--r--Source/JavaScriptCore/runtime/JSArray.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/Source/JavaScriptCore/runtime/JSArray.cpp b/Source/JavaScriptCore/runtime/JSArray.cpp
index 96cc44780..7218604d1 100644
--- a/Source/JavaScriptCore/runtime/JSArray.cpp
+++ b/Source/JavaScriptCore/runtime/JSArray.cpp
@@ -1258,7 +1258,10 @@ JSValue JSArray::pop(ExecState* exec)
if (exec->hadException())
return jsUndefined();
// Call the [[Delete]] internal method of O with arguments indx and true.
- deletePropertyByIndex(this, exec, index);
+ if (!deletePropertyByIndex(this, exec, index)) {
+ throwTypeError(exec, "Unable to delete property.");
+ return jsUndefined();
+ }
// Call the [[Put]] internal method of O with arguments "length", indx, and true.
setLength(exec, index, true);
// Return element.