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| 1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 358 | 358 |
| 359 | 359 |
| 360 Handle<Symbol> Factory::NewSymbol() { | 360 Handle<Symbol> Factory::NewSymbol() { |
| 361 CALL_HEAP_FUNCTION( | 361 CALL_HEAP_FUNCTION( |
| 362 isolate(), | 362 isolate(), |
| 363 isolate()->heap()->AllocateSymbol(), | 363 isolate()->heap()->AllocateSymbol(), |
| 364 Symbol); | 364 Symbol); |
| 365 } | 365 } |
| 366 | 366 |
| 367 | 367 |
| 368 Handle<Symbol> Factory::NewPrivateSymbol() { |
| 369 CALL_HEAP_FUNCTION( |
| 370 isolate(), |
| 371 isolate()->heap()->AllocatePrivateSymbol(), |
| 372 Symbol); |
| 373 } |
| 374 |
| 375 |
| 368 Handle<Context> Factory::NewNativeContext() { | 376 Handle<Context> Factory::NewNativeContext() { |
| 369 CALL_HEAP_FUNCTION( | 377 CALL_HEAP_FUNCTION( |
| 370 isolate(), | 378 isolate(), |
| 371 isolate()->heap()->AllocateNativeContext(), | 379 isolate()->heap()->AllocateNativeContext(), |
| 372 Context); | 380 Context); |
| 373 } | 381 } |
| 374 | 382 |
| 375 | 383 |
| 376 Handle<Context> Factory::NewGlobalContext(Handle<JSFunction> function, | 384 Handle<Context> Factory::NewGlobalContext(Handle<JSFunction> function, |
| 377 Handle<ScopeInfo> scope_info) { | 385 Handle<ScopeInfo> scope_info) { |
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| 436 | 444 |
| 437 | 445 |
| 438 Handle<Struct> Factory::NewStruct(InstanceType type) { | 446 Handle<Struct> Factory::NewStruct(InstanceType type) { |
| 439 CALL_HEAP_FUNCTION( | 447 CALL_HEAP_FUNCTION( |
| 440 isolate(), | 448 isolate(), |
| 441 isolate()->heap()->AllocateStruct(type), | 449 isolate()->heap()->AllocateStruct(type), |
| 442 Struct); | 450 Struct); |
| 443 } | 451 } |
| 444 | 452 |
| 445 | 453 |
| 454 Handle<AliasedArgumentsEntry> Factory::NewAliasedArgumentsEntry( |
| 455 int aliased_context_slot) { |
| 456 Handle<AliasedArgumentsEntry> entry = Handle<AliasedArgumentsEntry>::cast( |
| 457 NewStruct(ALIASED_ARGUMENTS_ENTRY_TYPE)); |
| 458 entry->set_aliased_context_slot(aliased_context_slot); |
| 459 return entry; |
| 460 } |
| 461 |
| 462 |
| 446 Handle<DeclaredAccessorDescriptor> Factory::NewDeclaredAccessorDescriptor() { | 463 Handle<DeclaredAccessorDescriptor> Factory::NewDeclaredAccessorDescriptor() { |
| 447 return Handle<DeclaredAccessorDescriptor>::cast( | 464 return Handle<DeclaredAccessorDescriptor>::cast( |
| 448 NewStruct(DECLARED_ACCESSOR_DESCRIPTOR_TYPE)); | 465 NewStruct(DECLARED_ACCESSOR_DESCRIPTOR_TYPE)); |
| 449 } | 466 } |
| 450 | 467 |
| 451 | 468 |
| 452 Handle<DeclaredAccessorInfo> Factory::NewDeclaredAccessorInfo() { | 469 Handle<DeclaredAccessorInfo> Factory::NewDeclaredAccessorInfo() { |
| 453 Handle<DeclaredAccessorInfo> info = | 470 Handle<DeclaredAccessorInfo> info = |
| 454 Handle<DeclaredAccessorInfo>::cast( | 471 Handle<DeclaredAccessorInfo>::cast( |
| 455 NewStruct(DECLARED_ACCESSOR_INFO_TYPE)); | 472 NewStruct(DECLARED_ACCESSOR_INFO_TYPE)); |
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| 611 | 628 |
| 612 | 629 |
| 613 Handle<Map> Factory::CopyMap(Handle<Map> src, | 630 Handle<Map> Factory::CopyMap(Handle<Map> src, |
| 614 int extra_inobject_properties) { | 631 int extra_inobject_properties) { |
| 615 Handle<Map> copy = CopyWithPreallocatedFieldDescriptors(src); | 632 Handle<Map> copy = CopyWithPreallocatedFieldDescriptors(src); |
| 616 // Check that we do not overflow the instance size when adding the | 633 // Check that we do not overflow the instance size when adding the |
| 617 // extra inobject properties. | 634 // extra inobject properties. |
| 618 int instance_size_delta = extra_inobject_properties * kPointerSize; | 635 int instance_size_delta = extra_inobject_properties * kPointerSize; |
| 619 int max_instance_size_delta = | 636 int max_instance_size_delta = |
| 620 JSObject::kMaxInstanceSize - copy->instance_size(); | 637 JSObject::kMaxInstanceSize - copy->instance_size(); |
| 621 if (instance_size_delta > max_instance_size_delta) { | 638 int max_extra_properties = max_instance_size_delta >> kPointerSizeLog2; |
| 639 if (extra_inobject_properties > max_extra_properties) { |
| 622 // If the instance size overflows, we allocate as many properties | 640 // If the instance size overflows, we allocate as many properties |
| 623 // as we can as inobject properties. | 641 // as we can as inobject properties. |
| 624 instance_size_delta = max_instance_size_delta; | 642 instance_size_delta = max_instance_size_delta; |
| 625 extra_inobject_properties = max_instance_size_delta >> kPointerSizeLog2; | 643 extra_inobject_properties = max_extra_properties; |
| 626 } | 644 } |
| 627 // Adjust the map with the extra inobject properties. | 645 // Adjust the map with the extra inobject properties. |
| 628 int inobject_properties = | 646 int inobject_properties = |
| 629 copy->inobject_properties() + extra_inobject_properties; | 647 copy->inobject_properties() + extra_inobject_properties; |
| 630 copy->set_inobject_properties(inobject_properties); | 648 copy->set_inobject_properties(inobject_properties); |
| 631 copy->set_unused_property_fields(inobject_properties); | 649 copy->set_unused_property_fields(inobject_properties); |
| 632 copy->set_instance_size(copy->instance_size() + instance_size_delta); | 650 copy->set_instance_size(copy->instance_size() + instance_size_delta); |
| 633 copy->set_visitor_id(StaticVisitorBase::GetVisitorId(*copy)); | 651 copy->set_visitor_id(StaticVisitorBase::GetVisitorId(*copy)); |
| 634 return copy; | 652 return copy; |
| 635 } | 653 } |
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| 1779 return Handle<Object>::null(); | 1797 return Handle<Object>::null(); |
| 1780 } | 1798 } |
| 1781 | 1799 |
| 1782 | 1800 |
| 1783 Handle<Object> Factory::ToBoolean(bool value) { | 1801 Handle<Object> Factory::ToBoolean(bool value) { |
| 1784 return value ? true_value() : false_value(); | 1802 return value ? true_value() : false_value(); |
| 1785 } | 1803 } |
| 1786 | 1804 |
| 1787 | 1805 |
| 1788 } } // namespace v8::internal | 1806 } } // namespace v8::internal |
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