Generalized the EvalCache into a CompilationCache and enabled...

src/runtime.cc

 // Copyright 2006-2008 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 3346 matching lines @@
 
 static Object* Runtime_EvalReceiver(Arguments args) {
   StackFrameLocator locator;
   return locator.FindJavaScriptFrame(1)->receiver();
 }
 
 
 static Object* Runtime_CompileString(Arguments args) {
   HandleScope scope;
   ASSERT(args.length() == 2);
+  CONVERT_ARG_CHECKED(String, source, 0);
   bool contextual = args[1]->IsTrue();
   RUNTIME_ASSERT(contextual || args[1]->IsFalse());
 
   // Compute the eval context.
   Handle<Context> context;
   if (contextual) {
     // Get eval context. May not be available if we are calling eval
     // through an alias, and the corresponding frame doesn't have a
     // proper eval context set up.
     Object* eval_context = EvalContext();
     if (eval_context->IsFailure()) return eval_context;
     context = Handle<Context>(Context::cast(eval_context));
   } else {
     context = Handle<Context>(Top::context()->global_context());
   }
 
-  // Compile eval() source.
-  bool is_global_context = context->IsGlobalContext();
-  Handle<String> source(String::cast(args[0]));
-  Object* obj = Heap::LookupEvalCache(is_global_context, *source);
-  if (obj->IsFailure()) return obj;
 
-  Handle<JSFunction> boilerplate;
-  if (!obj->IsJSFunction()) {
-    Counters::eval_cache_misses.Increment();
-    boilerplate = Compiler::CompileEval(is_global_context, source);
-    if (boilerplate.is_null()) return Failure::Exception();
-
-    Object* obj =
-        Heap::PutInEvalCache(is_global_context, *source, *boilerplate);
-    if (obj->IsFailure()) return obj;
-
-  } else {
-    Counters::eval_cache_hits.Increment();
-    boilerplate = Handle<JSFunction>(JSFunction::cast(obj));
-  }
-
+  // Compile source string.
+  bool is_global = context->IsGlobalContext();
+  Handle<JSFunction> boilerplate =
+      Compiler::CompileEval(is_global, source);
+  if (boilerplate.is_null()) return Failure::Exception();
   Handle<JSFunction> fun =
       Factory::NewFunctionFromBoilerplate(boilerplate, context);
   return *fun;
 }
 
 
 static Object* Runtime_CompileScript(Arguments args) {
   HandleScope scope;
   ASSERT(args.length() == 4);
 
@@ skipping 1578 matching lines @@
 
 void Runtime::PerformGC(Object* result) {
   Failure* failure = Failure::cast(result);
   // Try to do a garbage collection; ignore it if it fails. The C
   // entry stub will throw an out-of-memory exception in that case.
   Heap::CollectGarbage(failure->requested(), failure->allocation_space());
 }
 
 
 } }  // namespace v8::internal