Strict mode delete.

src/parser.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * 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
@@ skipping 2501 matching lines @@
       double value = expression->AsLiteral()->handle()->Number();
       switch (op) {
         case Token::ADD:
           return expression;
         case Token::SUB:
           return NewNumberLiteral(-value);
         case Token::BIT_NOT:
           return NewNumberLiteral(~DoubleToInt32(value));
         default: break;
       }
     }

[Martin Maly, 2011/02/14 05:15:22]

This is contained in the other CL...

 
+    // "delete identifier" is a syntax error in strict mode.
+    if (op == Token::DELETE && temp_scope_->StrictMode()) {
+      VariableProxy* operand = expression->AsVariableProxy();
+      if (operand != NULL && !operand->is_this()) {
+        ReportMessage("strict_delete", Vector<const char*>::empty());
+        *ok = false;
+        return NULL;
+      }
+    }
+
     return new UnaryOperation(op, expression);
 
   } else if (Token::IsCountOp(op)) {
     op = Next();
     Expression* expression = ParseUnaryExpression(CHECK_OK);
     // Signal a reference error if the expression is an invalid
     // left-hand side expression.  We could report this as a syntax
     // error here but for compatibility with JSC we choose to report the
     // error at runtime.
     if (expression == NULL || !expression->IsValidLeftHandSide()) {
@@ skipping 2568 matching lines @@
                                    info->is_global(),
                                    info->StrictMode());
     }
   }
 
   info->SetFunction(result);
   return (result != NULL);
 }
 
 } }  // namespace v8::internal