Fix a bug that occurs when functions are defined with more than 16,382 parame...

src/parser.cc

Index: src/parser.cc
===================================================================
--- src/parser.cc	(revision 6692)
+++ src/parser.cc	(working copy)
@@ -333,6 +333,9 @@
 }
 
 
+const int Parser::kMaxNumFunctionParameters;
+
+
 Handle<String> Parser::LookupSymbol(int symbol_id) {
   // Length of symbol cache is the number of identified symbols.
   // If we are larger than that, or negative, it's not a cached symbol.
@@ -3499,6 +3502,12 @@
       Variable* parameter = top_scope_->DeclareLocal(param_name, Variable::VAR);
       top_scope_->AddParameter(parameter);
       num_parameters++;
+      if (num_parameters > kMaxNumFunctionParameters) {
+        ReportMessageAt(scanner().location(), "too_many_parameters",
+                        Vector<const char*>::empty());
+        *ok = false;
+        return NULL;
+      }
       done = (peek() == Token::RPAREN);
       if (!done) Expect(Token::COMMA, CHECK_OK);
     }