Version 3.7.1

src/factory.cc

 // Copyright 2011 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 41 matching lines @@
 Handle<FixedArray> Factory::NewFixedArrayWithHoles(int size,
                                                    PretenureFlag pretenure) {
   ASSERT(0 <= size);
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateFixedArrayWithHoles(size, pretenure),
       FixedArray);
 }
 
 
-Handle<FixedArray> Factory::NewFixedDoubleArray(int size,
-                                                PretenureFlag pretenure) {
+Handle<FixedDoubleArray> Factory::NewFixedDoubleArray(int size,
+                                                      PretenureFlag pretenure) {
   ASSERT(0 <= size);
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateUninitializedFixedDoubleArray(size, pretenure),
-      FixedArray);
+      FixedDoubleArray);
 }
 
 
 Handle<StringDictionary> Factory::NewStringDictionary(int at_least_space_for) {
   ASSERT(0 <= at_least_space_for);
   CALL_HEAP_FUNCTION(isolate(),
                      StringDictionary::Allocate(at_least_space_for),
                      StringDictionary);
 }
 
 
 Handle<NumberDictionary> Factory::NewNumberDictionary(int at_least_space_for) {
   ASSERT(0 <= at_least_space_for);
   CALL_HEAP_FUNCTION(isolate(),
                      NumberDictionary::Allocate(at_least_space_for),
                      NumberDictionary);
 }
 
 
+Handle<ObjectHashSet> Factory::NewObjectHashSet(int at_least_space_for) {
+  ASSERT(0 <= at_least_space_for);
+  CALL_HEAP_FUNCTION(isolate(),
+                     ObjectHashSet::Allocate(at_least_space_for),
+                     ObjectHashSet);
+}
+
+
 Handle<ObjectHashTable> Factory::NewObjectHashTable(int at_least_space_for) {
   ASSERT(0 <= at_least_space_for);
   CALL_HEAP_FUNCTION(isolate(),
                      ObjectHashTable::Allocate(at_least_space_for),
                      ObjectHashTable);
 }
 
 
 Handle<DescriptorArray> Factory::NewDescriptorArray(int number_of_descriptors) {
   ASSERT(0 <= number_of_descriptors);
@@ skipping 366 matching lines @@
                      src->GetElementsTransitionMap(elements_kind),
                      Map);
 }
 
 
 Handle<FixedArray> Factory::CopyFixedArray(Handle<FixedArray> array) {
   CALL_HEAP_FUNCTION(isolate(), array->Copy(), FixedArray);
 }
 
 
+Handle<FixedDoubleArray> Factory::CopyFixedDoubleArray(
+    Handle<FixedDoubleArray> array) {
+  CALL_HEAP_FUNCTION(isolate(), array->Copy(), FixedDoubleArray);
+}
+
+
 Handle<JSFunction> Factory::BaseNewFunctionFromSharedFunctionInfo(
     Handle<SharedFunctionInfo> function_info,
     Handle<Map> function_map,
     PretenureFlag pretenure) {
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateFunction(*function_map,
                                           *function_info,
                                           isolate()->heap()->the_hole_value(),
                                           pretenure),
                      JSFunction);
 }
 
 
 Handle<JSFunction> Factory::NewFunctionFromSharedFunctionInfo(
     Handle<SharedFunctionInfo> function_info,
     Handle<Context> context,
     PretenureFlag pretenure) {
   Handle<JSFunction> result = BaseNewFunctionFromSharedFunctionInfo(
       function_info,
       function_info->strict_mode()
           ? isolate()->strict_mode_function_map()
           : isolate()->function_map(),
       pretenure);
 
   result->set_context(*context);
-  int number_of_literals = function_info->num_literals();
-  Handle<FixedArray> literals = NewFixedArray(number_of_literals, pretenure);
-  if (number_of_literals > 0) {
-    // Store the object, regexp and array functions in the literals
-    // array prefix.  These functions will be used when creating
-    // object, regexp and array literals in this function.
-    literals->set(JSFunction::kLiteralGlobalContextIndex,
-                  context->global_context());
+  if (!function_info->bound()) {
+    int number_of_literals = function_info->num_literals();
+    Handle<FixedArray> literals = NewFixedArray(number_of_literals, pretenure);
+    if (number_of_literals > 0) {
+      // Store the object, regexp and array functions in the literals
+      // array prefix.  These functions will be used when creating
+      // object, regexp and array literals in this function.
+      literals->set(JSFunction::kLiteralGlobalContextIndex,
+                    context->global_context());
+    }
+    result->set_literals(*literals);
+  } else {
+    result->set_function_bindings(isolate()->heap()->empty_fixed_array());
   }
-  result->set_literals(*literals);
   result->set_next_function_link(isolate()->heap()->undefined_value());
 
   if (V8::UseCrankshaft() &&
       FLAG_always_opt &&
       result->is_compiled() &&
       !function_info->is_toplevel() &&
       function_info->allows_lazy_compilation()) {
     result->MarkForLazyRecompilation();
   }
   return result;
@@ skipping 294 matching lines @@
     Handle<DescriptorArray> array,
     Handle<Object> descriptors) {
   v8::NeanderArray callbacks(descriptors);
   int nof_callbacks = callbacks.length();
   Handle<DescriptorArray> result =
       NewDescriptorArray(array->number_of_descriptors() + nof_callbacks);
 
   // Number of descriptors added to the result so far.
   int descriptor_count = 0;
 
+  // Ensure that marking will not progress and change color of objects.
+  DescriptorArray::WhitenessWitness witness(*result);
+
   // Copy the descriptors from the array.
   for (int i = 0; i < array->number_of_descriptors(); i++) {
     if (array->GetType(i) != NULL_DESCRIPTOR) {
-      result->CopyFrom(descriptor_count++, *array, i);
+      result->CopyFrom(descriptor_count++, *array, i, witness);
     }
   }
 
   // Number of duplicates detected.
   int duplicates = 0;
 
   // Fill in new callback descriptors.  Process the callbacks from
   // back to front so that the last callback with a given name takes
   // precedence over previously added callbacks with that name.
   for (int i = nof_callbacks - 1; i >= 0; i--) {
     Handle<AccessorInfo> entry =
         Handle<AccessorInfo>(AccessorInfo::cast(callbacks.get(i)));
     // Ensure the key is a symbol before writing into the instance descriptor.
     Handle<String> key =
         SymbolFromString(Handle<String>(String::cast(entry->name())));
     // Check if a descriptor with this name already exists before writing.
     if (result->LinearSearch(*key, descriptor_count) ==
         DescriptorArray::kNotFound) {
       CallbacksDescriptor desc(*key, *entry, entry->property_attributes());
-      result->Set(descriptor_count, &desc);
+      result->Set(descriptor_count, &desc, witness);
       descriptor_count++;
     } else {
       duplicates++;
     }
   }
 
   // If duplicates were detected, allocate a result of the right size
   // and transfer the elements.
   if (duplicates > 0) {
     int number_of_descriptors = result->number_of_descriptors() - duplicates;
     Handle<DescriptorArray> new_result =
         NewDescriptorArray(number_of_descriptors);
     for (int i = 0; i < number_of_descriptors; i++) {
-      new_result->CopyFrom(i, *result, i);
+      new_result->CopyFrom(i, *result, i, witness);
     }
     result = new_result;
   }
 
   // Sort the result before returning.
-  result->Sort();
+  result->Sort(witness);
   return result;
 }
 
 
 Handle<JSObject> Factory::NewJSObject(Handle<JSFunction> constructor,
                                       PretenureFlag pretenure) {
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateJSObject(*constructor, pretenure), JSObject);
 }
@@ skipping 459 matching lines @@
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return Handle<Object>(value
                         ? isolate()->heap()->true_value()
                         : isolate()->heap()->false_value());
 }
 
 
 } }  // namespace v8::internal