Implement ES6 rest parameters

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/ast-numbering.h"
 #include "src/ast-this-access-visitor.h"
@@ skipping 294 matching lines @@
 
 
 void CompilationInfo::EnsureFeedbackVector() {
   if (feedback_vector_.is_null()) {
     feedback_vector_ = isolate()->factory()->NewTypeFeedbackVector(
         function()->feedback_vector_spec());
   }
 }
 
 
+bool CompilationInfo::is_simple_parameter_list() {
+  return scope_->is_simple_parameter_list();
+}
+
+
 class HOptimizedGraphBuilderWithPositions: public HOptimizedGraphBuilder {
  public:
   explicit HOptimizedGraphBuilderWithPositions(CompilationInfo* info)
       : HOptimizedGraphBuilder(info) {
   }
 
 #define DEF_VISIT(type)                               \
   void Visit##type(type* node) OVERRIDE {             \
     if (node->position() != RelocInfo::kNoPosition) { \
       SetSourcePosition(node->position());            \
@@ skipping 286 matching lines @@
 
 
 // Sets the function info on a function.
 // The start_position points to the first '(' character after the function name
 // in the full script source. When counting characters in the script source the
 // the first character is number 0 (not 1).
 static void SetFunctionInfo(Handle<SharedFunctionInfo> function_info,
                             FunctionLiteral* lit,
                             bool is_toplevel,
                             Handle<Script> script) {
-  function_info->set_length(lit->parameter_count());
+  function_info->set_length(lit->scope()->default_function_length());
   function_info->set_formal_parameter_count(lit->parameter_count());
   function_info->set_script(*script);
   function_info->set_function_token_position(lit->function_token_position());
   function_info->set_start_position(lit->start_position());
   function_info->set_end_position(lit->end_position());
   function_info->set_is_expression(lit->is_expression());
   function_info->set_is_anonymous(lit->is_anonymous());
   function_info->set_is_toplevel(is_toplevel);
   function_info->set_inferred_name(*lit->inferred_name());
   function_info->set_allows_lazy_compilation(lit->AllowsLazyCompilation());
@@ skipping 977 matching lines @@
 }
 
 
 #if DEBUG
 void CompilationInfo::PrintAstForTesting() {
   PrintF("--- Source from AST ---\n%s\n",
          PrettyPrinter(isolate(), zone()).PrintProgram(function()));
 }
 #endif
 } }  // namespace v8::internal