Defer allocation of native function literals.

src/full-codegen.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 179 matching lines @@
     DebuggerStatement* stmt) {
   // The debugger statement is breakable.
   is_breakable_ = true;
 }
 
 
 void BreakableStatementChecker::VisitFunctionLiteral(FunctionLiteral* expr) {
 }
 
 
-void BreakableStatementChecker::VisitSharedFunctionInfoLiteral(
-    SharedFunctionInfoLiteral* expr) {
+void BreakableStatementChecker::VisitNativeFunctionLiteral(
+    NativeFunctionLiteral* expr) {
 }
 
 
 void BreakableStatementChecker::VisitConditional(Conditional* expr) {
 }
 
 
 void BreakableStatementChecker::VisitVariableProxy(VariableProxy* expr) {
 }
 
@@ skipping 1348 matching lines @@
   Handle<SharedFunctionInfo> function_info =
       Compiler::BuildFunctionInfo(expr, script());
   if (function_info.is_null()) {
     SetStackOverflow();
     return;
   }
   EmitNewClosure(function_info, expr->pretenure());
 }
 
 
-void FullCodeGenerator::VisitSharedFunctionInfoLiteral(
-    SharedFunctionInfoLiteral* expr) {
-  Comment cmnt(masm_, "[ SharedFunctionInfoLiteral");
-  EmitNewClosure(expr->shared_function_info(), false);
+void FullCodeGenerator::VisitNativeFunctionLiteral(
+    NativeFunctionLiteral* expr) {
+  Comment cmnt(masm_, "[ NativeFunctionLiteral");
+
+  // Compute the function template for the native function.
+  Handle<String> name = expr->name();
+  v8::Handle<v8::FunctionTemplate> fun_template =
+      expr->extension()->GetNativeFunction(v8::Utils::ToLocal(name));
+  ASSERT(!fun_template.IsEmpty());
+
+  // Instantiate the function and create a shared function info from it.
+  Handle<JSFunction> fun = Utils::OpenHandle(*fun_template->GetFunction());
+  const int literals = fun->NumberOfLiterals();
+  Handle<Code> code = Handle<Code>(fun->shared()->code());
+  Handle<Code> construct_stub = Handle<Code>(fun->shared()->construct_stub());
+  bool is_generator = false;
+  Handle<SharedFunctionInfo> shared =
+      isolate()->factory()->NewSharedFunctionInfo(name, literals, is_generator,
+          code, Handle<ScopeInfo>(fun->shared()->scope_info()));
+  shared->set_construct_stub(*construct_stub);
+
+  // Copy the function data to the shared function info.
+  shared->set_function_data(fun->shared()->function_data());
+  int parameters = fun->shared()->formal_parameter_count();
+  shared->set_formal_parameter_count(parameters);
+
+  EmitNewClosure(shared, false);
 }
 
 
 void FullCodeGenerator::VisitThrow(Throw* expr) {
   Comment cmnt(masm_, "[ Throw");
   VisitForStackValue(expr->exception());
   __ CallRuntime(Runtime::kThrow, 1);
   // Never returns here.
 }
 
@@ skipping 122 matching lines @@
   }
   return true;
 }
 #endif  // DEBUG
 
 
 #undef __
 
 
 } }  // namespace v8::internal