1 files changed, 4 insertions, 2 deletions
diff --git a/Source/JavaScriptCore/parser/SourceCode.h b/Source/JavaScriptCore/parser/SourceCode.h
index 7f37ecf86..cf1a4a3d9 100644
--- a/Source/JavaScriptCore/parser/SourceCode.h
+++ b/Source/JavaScriptCore/parser/SourceCode.h
@@ -10,7 +10,7 @@
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
- * 3.  Neither the name of Apple Inc. ("Apple") nor the names of
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
  *     its contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
  *
@@ -117,9 +117,11 @@ namespace JSC {
     {
         return SourceCode(StringSourceProvider::create(source, url, startPosition), startPosition.m_line.oneBasedInt(), startPosition.m_column.oneBasedInt());
     }
-    
+
     inline SourceCode SourceCode::subExpression(unsigned openBrace, unsigned closeBrace, int firstLine, int startColumn)
     {
+        ASSERT(provider()->source()[openBrace] == '{');
+        ASSERT(provider()->source()[closeBrace] == '}');
         startColumn += 1; // Convert to base 1.
         return SourceCode(provider(), openBrace, closeBrace + 1, firstLine, startColumn);
     }