Implement basic code generation for arrow functions

src/compiler.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/compiler.h"
 
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 609 matching lines @@
   function_info->set_allows_lazy_compilation_without_context(
       lit->AllowsLazyCompilationWithoutContext());
   function_info->set_strict_mode(lit->strict_mode());
   function_info->set_uses_arguments(lit->scope()->arguments() != NULL);
   function_info->set_has_duplicate_parameters(lit->has_duplicate_parameters());
   function_info->set_ast_node_count(lit->ast_node_count());
   function_info->set_is_function(lit->is_function());
   function_info->set_bailout_reason(lit->dont_optimize_reason());
   function_info->set_dont_cache(lit->flags()->Contains(kDontCache));
   function_info->set_is_generator(lit->is_generator());
+  function_info->set_is_arrow(lit->is_arrow());
 }
 
 
 static bool CompileUnoptimizedCode(CompilationInfo* info) {
   ASSERT(info->function() != NULL);
   if (!Rewriter::Rewrite(info)) return false;
   if (!Scope::Analyze(info)) return false;
   ASSERT(info->scope() != NULL);
 
   if (!FullCodeGenerator::MakeCode(info)) {
@@ skipping 192 matching lines @@
     HistogramTimerScope timer(rate);
 
     // Compile the code.
     if (!CompileUnoptimizedCode(info)) {
       return Handle<SharedFunctionInfo>::null();
     }
 
     // Allocate function.
     ASSERT(!info->code().is_null());
     result = isolate->factory()->NewSharedFunctionInfo(
-        lit->name(),
-        lit->materialized_literal_count(),
-        lit->is_generator(),
-        info->code(),
+        lit->name(), lit->materialized_literal_count(), lit->is_generator(),
+        lit->is_arrow(), info->code(),
         ScopeInfo::Create(info->scope(), info->zone()),
         info->feedback_vector());
 
     ASSERT_EQ(RelocInfo::kNoPosition, lit->function_token_position());
     SetFunctionInfo(result, lit, true, script);
 
     Handle<String> script_name = script->name()->IsString()
         ? Handle<String>(String::cast(script->name()))
         : isolate->factory()->empty_string();
     Logger::LogEventsAndTags log_tag = info->is_eval()
@@ skipping 188 matching lines @@
     info.SetCode(code);
     scope_info = Handle<ScopeInfo>(ScopeInfo::Empty(isolate));
   } else if (FullCodeGenerator::MakeCode(&info)) {
     ASSERT(!info.code().is_null());
     scope_info = ScopeInfo::Create(info.scope(), info.zone());
   } else {
     return Handle<SharedFunctionInfo>::null();
   }
 
   // Create a shared function info object.
-  Handle<SharedFunctionInfo> result =
-      factory->NewSharedFunctionInfo(literal->name(),
-                                     literal->materialized_literal_count(),
-                                     literal->is_generator(),
-                                     info.code(),
-                                     scope_info,
-                                     info.feedback_vector());
+  Handle<SharedFunctionInfo> result = factory->NewSharedFunctionInfo(
+      literal->name(), literal->materialized_literal_count(),
+      literal->is_generator(), literal->is_arrow(), info.code(), scope_info,
+      info.feedback_vector());
   SetFunctionInfo(result, literal, false, script);
   RecordFunctionCompilation(Logger::FUNCTION_TAG, &info, result);
   result->set_allows_lazy_compilation(allow_lazy);
   result->set_allows_lazy_compilation_without_context(allow_lazy_without_ctx);
 
   // Set the expected number of properties for instances and return
   // the resulting function.
   SetExpectedNofPropertiesFromEstimate(result,
                                        literal->expected_property_count());
   live_edit_tracker.RecordFunctionInfo(result, literal, info.zone());
@@ skipping 265 matching lines @@
   AllowHandleDereference allow_deref;
   bool tracing_on = info()->IsStub()
       ? FLAG_trace_hydrogen_stubs
       : (FLAG_trace_hydrogen &&
          info()->closure()->PassesFilter(FLAG_trace_hydrogen_filter));
   return (tracing_on &&
       base::OS::StrChr(const_cast<char*>(FLAG_trace_phase), name_[0]) != NULL);
 }
 
 } }  // namespace v8::internal