Force eager compilation of some function literals.

src/parser.cc

 // Copyright 2012 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 689 matching lines @@
     result = ParseLazy(&stream, &zone_scope);
   } else {
     GenericStringUtf16CharacterStream stream(source,
                                              shared_info->start_position(),
                                              shared_info->end_position());
     result = ParseLazy(&stream, &zone_scope);
   }
 
   if (FLAG_trace_parse && result != NULL) {
     double ms = static_cast<double>(OS::Ticks() - start) / 1000;
-    SmartArrayPointer<char> name_chars = result->name()->ToCString();
+    SmartArrayPointer<char> name_chars = result->debug_name()->ToCString();
     PrintF("[parsing function: %s - took %0.3f ms]\n", *name_chars, ms);
   }
   return result;
 }
 
 
 FunctionLiteral* Parser::ParseLazy(Utf16CharacterStream* source,
                                    ZoneScope* zone_scope) {
   Handle<SharedFunctionInfo> shared_info = info()->shared_info();
   scanner_.Initialize(source);
@@ skipping 2722 matching lines @@
           // For call of an identifier we want to report position of
           // the identifier as position of the call in the stack trace.
           pos = scanner().location().beg_pos;
         } else {
           // For other kinds of calls we record position of the parenthesis as
           // position of the call.  Note that this is extremely important for
           // expressions of the form function(){...}() for which call position
           // should not point to the closing brace otherwise it will intersect
           // with positions recorded for function literal and confuse debugger.
           pos = scanner().peek_location().beg_pos;
+          // Also the trailing parenthesis are a hint that the function will
+          // be called immediately. If we happen to have parsed a preceding
+          // function literal eagerly, we can also compile it eagerly.
+          if (result->IsFunctionLiteral() && mode() == PARSE_EAGERLY) {
+            result->AsFunctionLiteral()->set_parenthesized();
+          }
         }
         ZoneList<Expression*>* args = ParseArguments(CHECK_OK);
 
         // Keep track of eval() calls since they disable all local variable
         // optimizations.
         // The calls that need special treatment are the
         // direct eval calls. These calls are all of the form eval(...), with
         // no explicit receiver.
         // These calls are marked as potentially direct eval calls. Whether
         // they are actually direct calls to eval is determined at run time.
@@ skipping 2620 matching lines @@
       ASSERT(info->isolate()->has_pending_exception());
     } else {
       result = parser.ParseProgram();
     }
   }
   info->SetFunction(result);
   return (result != NULL);
 }
 
 } }  // namespace v8::internal