1 files changed, 6 insertions, 6 deletions
diff --git a/JavaScriptCore/runtime/Executable.cpp b/JavaScriptCore/runtime/Executable.cpp
index 7586746..bc18cc9 100644
--- a/JavaScriptCore/runtime/Executable.cpp
+++ b/JavaScriptCore/runtime/Executable.cpp
@@ -30,6 +30,7 @@
 #include "CodeBlock.h"
 #include "JIT.h"
 #include "Parser.h"
+#include "StringBuilder.h"
 #include "Vector.h"
 
 namespace JSC {
@@ -265,14 +266,13 @@ PassRefPtr<FunctionExecutable> FunctionExecutable::fromGlobalCode(const Identifi
 UString FunctionExecutable::paramString() const
 {
     FunctionParameters& parameters = *m_parameters;
-    UString s("");
+    StringBuilder builder;
     for (size_t pos = 0; pos < parameters.size(); ++pos) {
-        if (!s.isEmpty())
-            s += ", ";
-        s += parameters[pos].ustring();
+        if (!builder.isEmpty())
+            builder.append(", ");
+        builder.append(parameters[pos].ustring());
     }
-
-    return s;
+    return builder.release();
 }
 
 };