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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "bootstrapper.h" | 5 #include "bootstrapper.h" |
6 | 6 |
7 #include "accessors.h" | 7 #include "accessors.h" |
8 #include "isolate-inl.h" | 8 #include "isolate-inl.h" |
9 #include "natives.h" | 9 #include "natives.h" |
10 #include "snapshot.h" | 10 #include "snapshot.h" |
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376 function->shared()->set_instance_class_name(*internalized_name); | 376 function->shared()->set_instance_class_name(*internalized_name); |
377 } | 377 } |
378 function->shared()->set_native(true); | 378 function->shared()->set_native(true); |
379 return function; | 379 return function; |
380 } | 380 } |
381 | 381 |
382 | 382 |
383 void Genesis::SetFunctionInstanceDescriptor( | 383 void Genesis::SetFunctionInstanceDescriptor( |
384 Handle<Map> map, PrototypePropertyMode prototypeMode) { | 384 Handle<Map> map, PrototypePropertyMode prototypeMode) { |
385 int size = (prototypeMode == DONT_ADD_PROTOTYPE) ? 4 : 5; | 385 int size = (prototypeMode == DONT_ADD_PROTOTYPE) ? 4 : 5; |
386 Handle<DescriptorArray> descriptors(factory()->NewDescriptorArray(0, size)); | 386 Map::EnsureDescriptorSlack(map, size); |
387 DescriptorArray::WhitenessWitness witness(*descriptors); | |
388 | 387 |
389 Handle<Foreign> length(factory()->NewForeign(&Accessors::FunctionLength)); | 388 Handle<Foreign> length(factory()->NewForeign(&Accessors::FunctionLength)); |
390 Handle<Foreign> name(factory()->NewForeign(&Accessors::FunctionName)); | 389 Handle<Foreign> name(factory()->NewForeign(&Accessors::FunctionName)); |
391 Handle<Foreign> args(factory()->NewForeign(&Accessors::FunctionArguments)); | 390 Handle<Foreign> args(factory()->NewForeign(&Accessors::FunctionArguments)); |
392 Handle<Foreign> caller(factory()->NewForeign(&Accessors::FunctionCaller)); | 391 Handle<Foreign> caller(factory()->NewForeign(&Accessors::FunctionCaller)); |
393 Handle<Foreign> prototype; | 392 Handle<Foreign> prototype; |
394 if (prototypeMode != DONT_ADD_PROTOTYPE) { | 393 if (prototypeMode != DONT_ADD_PROTOTYPE) { |
395 prototype = factory()->NewForeign(&Accessors::FunctionPrototype); | 394 prototype = factory()->NewForeign(&Accessors::FunctionPrototype); |
396 } | 395 } |
397 PropertyAttributes attribs = static_cast<PropertyAttributes>( | 396 PropertyAttributes attribs = static_cast<PropertyAttributes>( |
398 DONT_ENUM | DONT_DELETE | READ_ONLY); | 397 DONT_ENUM | DONT_DELETE | READ_ONLY); |
399 map->set_instance_descriptors(*descriptors); | |
400 | 398 |
401 { // Add length. | 399 { // Add length. |
402 CallbacksDescriptor d(factory()->length_string(), length, attribs); | 400 CallbacksDescriptor d(factory()->length_string(), length, attribs); |
403 map->AppendDescriptor(&d, witness); | 401 map->AppendDescriptor(&d); |
404 } | 402 } |
405 { // Add name. | 403 { // Add name. |
406 CallbacksDescriptor d(factory()->name_string(), name, attribs); | 404 CallbacksDescriptor d(factory()->name_string(), name, attribs); |
407 map->AppendDescriptor(&d, witness); | 405 map->AppendDescriptor(&d); |
408 } | 406 } |
409 { // Add arguments. | 407 { // Add arguments. |
410 CallbacksDescriptor d(factory()->arguments_string(), args, attribs); | 408 CallbacksDescriptor d(factory()->arguments_string(), args, attribs); |
411 map->AppendDescriptor(&d, witness); | 409 map->AppendDescriptor(&d); |
412 } | 410 } |
413 { // Add caller. | 411 { // Add caller. |
414 CallbacksDescriptor d(factory()->caller_string(), caller, attribs); | 412 CallbacksDescriptor d(factory()->caller_string(), caller, attribs); |
415 map->AppendDescriptor(&d, witness); | 413 map->AppendDescriptor(&d); |
416 } | 414 } |
417 if (prototypeMode != DONT_ADD_PROTOTYPE) { | 415 if (prototypeMode != DONT_ADD_PROTOTYPE) { |
418 // Add prototype. | 416 // Add prototype. |
419 if (prototypeMode == ADD_WRITEABLE_PROTOTYPE) { | 417 if (prototypeMode == ADD_WRITEABLE_PROTOTYPE) { |
420 attribs = static_cast<PropertyAttributes>(attribs & ~READ_ONLY); | 418 attribs = static_cast<PropertyAttributes>(attribs & ~READ_ONLY); |
421 } | 419 } |
422 CallbacksDescriptor d(factory()->prototype_string(), prototype, attribs); | 420 CallbacksDescriptor d(factory()->prototype_string(), prototype, attribs); |
423 map->AppendDescriptor(&d, witness); | 421 map->AppendDescriptor(&d); |
424 } | 422 } |
425 } | 423 } |
426 | 424 |
427 | 425 |
428 Handle<Map> Genesis::CreateFunctionMap(PrototypePropertyMode prototype_mode) { | 426 Handle<Map> Genesis::CreateFunctionMap(PrototypePropertyMode prototype_mode) { |
429 Handle<Map> map = factory()->NewMap(JS_FUNCTION_TYPE, JSFunction::kSize); | 427 Handle<Map> map = factory()->NewMap(JS_FUNCTION_TYPE, JSFunction::kSize); |
430 SetFunctionInstanceDescriptor(map, prototype_mode); | 428 SetFunctionInstanceDescriptor(map, prototype_mode); |
431 map->set_function_with_prototype(prototype_mode != DONT_ADD_PROTOTYPE); | 429 map->set_function_with_prototype(prototype_mode != DONT_ADD_PROTOTYPE); |
432 return map; | 430 return map; |
433 } | 431 } |
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515 empty_function_map->set_prototype( | 513 empty_function_map->set_prototype( |
516 native_context()->object_function()->prototype()); | 514 native_context()->object_function()->prototype()); |
517 empty_function->set_map(*empty_function_map); | 515 empty_function->set_map(*empty_function_map); |
518 return empty_function; | 516 return empty_function; |
519 } | 517 } |
520 | 518 |
521 | 519 |
522 void Genesis::SetStrictFunctionInstanceDescriptor( | 520 void Genesis::SetStrictFunctionInstanceDescriptor( |
523 Handle<Map> map, PrototypePropertyMode prototypeMode) { | 521 Handle<Map> map, PrototypePropertyMode prototypeMode) { |
524 int size = (prototypeMode == DONT_ADD_PROTOTYPE) ? 4 : 5; | 522 int size = (prototypeMode == DONT_ADD_PROTOTYPE) ? 4 : 5; |
525 Handle<DescriptorArray> descriptors(factory()->NewDescriptorArray(0, size)); | 523 Map::EnsureDescriptorSlack(map, size); |
526 DescriptorArray::WhitenessWitness witness(*descriptors); | |
527 | 524 |
528 Handle<Foreign> length(factory()->NewForeign(&Accessors::FunctionLength)); | 525 Handle<Foreign> length(factory()->NewForeign(&Accessors::FunctionLength)); |
529 Handle<Foreign> name(factory()->NewForeign(&Accessors::FunctionName)); | 526 Handle<Foreign> name(factory()->NewForeign(&Accessors::FunctionName)); |
530 Handle<AccessorPair> arguments(factory()->NewAccessorPair()); | 527 Handle<AccessorPair> arguments(factory()->NewAccessorPair()); |
531 Handle<AccessorPair> caller(factory()->NewAccessorPair()); | 528 Handle<AccessorPair> caller(factory()->NewAccessorPair()); |
532 Handle<Foreign> prototype; | 529 Handle<Foreign> prototype; |
533 if (prototypeMode != DONT_ADD_PROTOTYPE) { | 530 if (prototypeMode != DONT_ADD_PROTOTYPE) { |
534 prototype = factory()->NewForeign(&Accessors::FunctionPrototype); | 531 prototype = factory()->NewForeign(&Accessors::FunctionPrototype); |
535 } | 532 } |
536 PropertyAttributes rw_attribs = | 533 PropertyAttributes rw_attribs = |
537 static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE); | 534 static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE); |
538 PropertyAttributes ro_attribs = | 535 PropertyAttributes ro_attribs = |
539 static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY); | 536 static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY); |
540 map->set_instance_descriptors(*descriptors); | |
541 | 537 |
542 { // Add length. | 538 { // Add length. |
543 CallbacksDescriptor d(factory()->length_string(), length, ro_attribs); | 539 CallbacksDescriptor d(factory()->length_string(), length, ro_attribs); |
544 map->AppendDescriptor(&d, witness); | 540 map->AppendDescriptor(&d); |
545 } | 541 } |
546 { // Add name. | 542 { // Add name. |
547 CallbacksDescriptor d(factory()->name_string(), name, ro_attribs); | 543 CallbacksDescriptor d(factory()->name_string(), name, ro_attribs); |
548 map->AppendDescriptor(&d, witness); | 544 map->AppendDescriptor(&d); |
549 } | 545 } |
550 { // Add arguments. | 546 { // Add arguments. |
551 CallbacksDescriptor d(factory()->arguments_string(), arguments, | 547 CallbacksDescriptor d(factory()->arguments_string(), arguments, |
552 rw_attribs); | 548 rw_attribs); |
553 map->AppendDescriptor(&d, witness); | 549 map->AppendDescriptor(&d); |
554 } | 550 } |
555 { // Add caller. | 551 { // Add caller. |
556 CallbacksDescriptor d(factory()->caller_string(), caller, rw_attribs); | 552 CallbacksDescriptor d(factory()->caller_string(), caller, rw_attribs); |
557 map->AppendDescriptor(&d, witness); | 553 map->AppendDescriptor(&d); |
558 } | 554 } |
559 if (prototypeMode != DONT_ADD_PROTOTYPE) { | 555 if (prototypeMode != DONT_ADD_PROTOTYPE) { |
560 // Add prototype. | 556 // Add prototype. |
561 PropertyAttributes attribs = | 557 PropertyAttributes attribs = |
562 prototypeMode == ADD_WRITEABLE_PROTOTYPE ? rw_attribs : ro_attribs; | 558 prototypeMode == ADD_WRITEABLE_PROTOTYPE ? rw_attribs : ro_attribs; |
563 CallbacksDescriptor d(factory()->prototype_string(), prototype, attribs); | 559 CallbacksDescriptor d(factory()->prototype_string(), prototype, attribs); |
564 map->AppendDescriptor(&d, witness); | 560 map->AppendDescriptor(&d); |
565 } | 561 } |
566 } | 562 } |
567 | 563 |
568 | 564 |
569 // ECMAScript 5th Edition, 13.2.3 | 565 // ECMAScript 5th Edition, 13.2.3 |
570 Handle<JSFunction> Genesis::GetThrowTypeErrorFunction() { | 566 Handle<JSFunction> Genesis::GetThrowTypeErrorFunction() { |
571 if (throw_type_error_function.is_null()) { | 567 if (throw_type_error_function.is_null()) { |
572 Handle<String> name = factory()->InternalizeOneByteString( | 568 Handle<String> name = factory()->InternalizeOneByteString( |
573 STATIC_ASCII_VECTOR("ThrowTypeError")); | 569 STATIC_ASCII_VECTOR("ThrowTypeError")); |
574 throw_type_error_function = | 570 throw_type_error_function = |
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854 | 850 |
855 // This seems a bit hackish, but we need to make sure Array.length | 851 // This seems a bit hackish, but we need to make sure Array.length |
856 // is 1. | 852 // is 1. |
857 array_function->shared()->set_length(1); | 853 array_function->shared()->set_length(1); |
858 | 854 |
859 Handle<Map> initial_map(array_function->initial_map()); | 855 Handle<Map> initial_map(array_function->initial_map()); |
860 | 856 |
861 // This assert protects an optimization in | 857 // This assert protects an optimization in |
862 // HGraphBuilder::JSArrayBuilder::EmitMapCode() | 858 // HGraphBuilder::JSArrayBuilder::EmitMapCode() |
863 ASSERT(initial_map->elements_kind() == GetInitialFastElementsKind()); | 859 ASSERT(initial_map->elements_kind() == GetInitialFastElementsKind()); |
864 | 860 Map::EnsureDescriptorSlack(initial_map, 1); |
865 Handle<DescriptorArray> array_descriptors( | |
866 factory->NewDescriptorArray(0, 1)); | |
867 DescriptorArray::WhitenessWitness witness(*array_descriptors); | |
868 | 861 |
869 Handle<Foreign> array_length(factory->NewForeign(&Accessors::ArrayLength)); | 862 Handle<Foreign> array_length(factory->NewForeign(&Accessors::ArrayLength)); |
870 PropertyAttributes attribs = static_cast<PropertyAttributes>( | 863 PropertyAttributes attribs = static_cast<PropertyAttributes>( |
871 DONT_ENUM | DONT_DELETE); | 864 DONT_ENUM | DONT_DELETE); |
872 initial_map->set_instance_descriptors(*array_descriptors); | |
873 | 865 |
874 { // Add length. | 866 { // Add length. |
875 CallbacksDescriptor d(factory->length_string(), array_length, attribs); | 867 CallbacksDescriptor d(factory->length_string(), array_length, attribs); |
876 array_function->initial_map()->AppendDescriptor(&d, witness); | 868 array_function->initial_map()->AppendDescriptor(&d); |
877 } | 869 } |
878 | 870 |
879 // array_function is used internally. JS code creating array object should | 871 // array_function is used internally. JS code creating array object should |
880 // search for the 'Array' property on the global object and use that one | 872 // search for the 'Array' property on the global object and use that one |
881 // as the constructor. 'Array' property on a global object can be | 873 // as the constructor. 'Array' property on a global object can be |
882 // overwritten by JS code. | 874 // overwritten by JS code. |
883 native_context()->set_array_function(*array_function); | 875 native_context()->set_array_function(*array_function); |
884 | 876 |
885 // Cache the array maps, needed by ArrayConstructorStub | 877 // Cache the array maps, needed by ArrayConstructorStub |
886 CacheInitialJSArrayMaps(native_context(), initial_map); | 878 CacheInitialJSArrayMaps(native_context(), initial_map); |
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909 Handle<JSFunction> string_fun = | 901 Handle<JSFunction> string_fun = |
910 InstallFunction(global, "String", JS_VALUE_TYPE, JSValue::kSize, | 902 InstallFunction(global, "String", JS_VALUE_TYPE, JSValue::kSize, |
911 isolate->initial_object_prototype(), | 903 isolate->initial_object_prototype(), |
912 Builtins::kIllegal, true, true); | 904 Builtins::kIllegal, true, true); |
913 string_fun->shared()->set_construct_stub( | 905 string_fun->shared()->set_construct_stub( |
914 isolate->builtins()->builtin(Builtins::kStringConstructCode)); | 906 isolate->builtins()->builtin(Builtins::kStringConstructCode)); |
915 native_context()->set_string_function(*string_fun); | 907 native_context()->set_string_function(*string_fun); |
916 | 908 |
917 Handle<Map> string_map = | 909 Handle<Map> string_map = |
918 Handle<Map>(native_context()->string_function()->initial_map()); | 910 Handle<Map>(native_context()->string_function()->initial_map()); |
919 Handle<DescriptorArray> string_descriptors( | 911 Map::EnsureDescriptorSlack(string_map, 1); |
920 factory->NewDescriptorArray(0, 1)); | |
921 DescriptorArray::WhitenessWitness witness(*string_descriptors); | |
922 | 912 |
923 Handle<Foreign> string_length( | 913 Handle<Foreign> string_length( |
924 factory->NewForeign(&Accessors::StringLength)); | 914 factory->NewForeign(&Accessors::StringLength)); |
925 PropertyAttributes attribs = static_cast<PropertyAttributes>( | 915 PropertyAttributes attribs = static_cast<PropertyAttributes>( |
926 DONT_ENUM | DONT_DELETE | READ_ONLY); | 916 DONT_ENUM | DONT_DELETE | READ_ONLY); |
927 string_map->set_instance_descriptors(*string_descriptors); | |
928 | 917 |
929 { // Add length. | 918 { // Add length. |
930 CallbacksDescriptor d(factory->length_string(), string_length, attribs); | 919 CallbacksDescriptor d(factory->length_string(), string_length, attribs); |
931 string_map->AppendDescriptor(&d, witness); | 920 string_map->AppendDescriptor(&d); |
932 } | 921 } |
933 } | 922 } |
934 | 923 |
935 { // --- D a t e --- | 924 { // --- D a t e --- |
936 // Builtin functions for Date.prototype. | 925 // Builtin functions for Date.prototype. |
937 Handle<JSFunction> date_fun = | 926 Handle<JSFunction> date_fun = |
938 InstallFunction(global, "Date", JS_DATE_TYPE, JSDate::kSize, | 927 InstallFunction(global, "Date", JS_DATE_TYPE, JSDate::kSize, |
939 isolate->initial_object_prototype(), | 928 isolate->initial_object_prototype(), |
940 Builtins::kIllegal, true, true); | 929 Builtins::kIllegal, true, true); |
941 | 930 |
942 native_context()->set_date_function(*date_fun); | 931 native_context()->set_date_function(*date_fun); |
943 } | 932 } |
944 | 933 |
945 | 934 |
946 { // -- R e g E x p | 935 { // -- R e g E x p |
947 // Builtin functions for RegExp.prototype. | 936 // Builtin functions for RegExp.prototype. |
948 Handle<JSFunction> regexp_fun = | 937 Handle<JSFunction> regexp_fun = |
949 InstallFunction(global, "RegExp", JS_REGEXP_TYPE, JSRegExp::kSize, | 938 InstallFunction(global, "RegExp", JS_REGEXP_TYPE, JSRegExp::kSize, |
950 isolate->initial_object_prototype(), | 939 isolate->initial_object_prototype(), |
951 Builtins::kIllegal, true, true); | 940 Builtins::kIllegal, true, true); |
952 native_context()->set_regexp_function(*regexp_fun); | 941 native_context()->set_regexp_function(*regexp_fun); |
953 | 942 |
954 ASSERT(regexp_fun->has_initial_map()); | 943 ASSERT(regexp_fun->has_initial_map()); |
955 Handle<Map> initial_map(regexp_fun->initial_map()); | 944 Handle<Map> initial_map(regexp_fun->initial_map()); |
956 | 945 |
957 ASSERT_EQ(0, initial_map->inobject_properties()); | 946 ASSERT_EQ(0, initial_map->inobject_properties()); |
958 | 947 |
959 PropertyAttributes final = | 948 PropertyAttributes final = |
960 static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY); | 949 static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY); |
961 Handle<DescriptorArray> descriptors = factory->NewDescriptorArray(0, 5); | 950 Map::EnsureDescriptorSlack(initial_map, 5); |
962 DescriptorArray::WhitenessWitness witness(*descriptors); | |
963 initial_map->set_instance_descriptors(*descriptors); | |
964 | 951 |
965 { | 952 { |
966 // ECMA-262, section 15.10.7.1. | 953 // ECMA-262, section 15.10.7.1. |
967 FieldDescriptor field(factory->source_string(), | 954 FieldDescriptor field(factory->source_string(), |
968 JSRegExp::kSourceFieldIndex, | 955 JSRegExp::kSourceFieldIndex, |
969 final, | 956 final, |
970 Representation::Tagged()); | 957 Representation::Tagged()); |
971 initial_map->AppendDescriptor(&field, witness); | 958 initial_map->AppendDescriptor(&field); |
972 } | 959 } |
973 { | 960 { |
974 // ECMA-262, section 15.10.7.2. | 961 // ECMA-262, section 15.10.7.2. |
975 FieldDescriptor field(factory->global_string(), | 962 FieldDescriptor field(factory->global_string(), |
976 JSRegExp::kGlobalFieldIndex, | 963 JSRegExp::kGlobalFieldIndex, |
977 final, | 964 final, |
978 Representation::Tagged()); | 965 Representation::Tagged()); |
979 initial_map->AppendDescriptor(&field, witness); | 966 initial_map->AppendDescriptor(&field); |
980 } | 967 } |
981 { | 968 { |
982 // ECMA-262, section 15.10.7.3. | 969 // ECMA-262, section 15.10.7.3. |
983 FieldDescriptor field(factory->ignore_case_string(), | 970 FieldDescriptor field(factory->ignore_case_string(), |
984 JSRegExp::kIgnoreCaseFieldIndex, | 971 JSRegExp::kIgnoreCaseFieldIndex, |
985 final, | 972 final, |
986 Representation::Tagged()); | 973 Representation::Tagged()); |
987 initial_map->AppendDescriptor(&field, witness); | 974 initial_map->AppendDescriptor(&field); |
988 } | 975 } |
989 { | 976 { |
990 // ECMA-262, section 15.10.7.4. | 977 // ECMA-262, section 15.10.7.4. |
991 FieldDescriptor field(factory->multiline_string(), | 978 FieldDescriptor field(factory->multiline_string(), |
992 JSRegExp::kMultilineFieldIndex, | 979 JSRegExp::kMultilineFieldIndex, |
993 final, | 980 final, |
994 Representation::Tagged()); | 981 Representation::Tagged()); |
995 initial_map->AppendDescriptor(&field, witness); | 982 initial_map->AppendDescriptor(&field); |
996 } | 983 } |
997 { | 984 { |
998 // ECMA-262, section 15.10.7.5. | 985 // ECMA-262, section 15.10.7.5. |
999 PropertyAttributes writable = | 986 PropertyAttributes writable = |
1000 static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE); | 987 static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE); |
1001 FieldDescriptor field(factory->last_index_string(), | 988 FieldDescriptor field(factory->last_index_string(), |
1002 JSRegExp::kLastIndexFieldIndex, | 989 JSRegExp::kLastIndexFieldIndex, |
1003 writable, | 990 writable, |
1004 Representation::Tagged()); | 991 Representation::Tagged()); |
1005 initial_map->AppendDescriptor(&field, witness); | 992 initial_map->AppendDescriptor(&field); |
1006 } | 993 } |
1007 | 994 |
1008 initial_map->set_inobject_properties(5); | 995 initial_map->set_inobject_properties(5); |
1009 initial_map->set_pre_allocated_property_fields(5); | 996 initial_map->set_pre_allocated_property_fields(5); |
1010 initial_map->set_unused_property_fields(0); | 997 initial_map->set_unused_property_fields(0); |
1011 initial_map->set_instance_size( | 998 initial_map->set_instance_size( |
1012 initial_map->instance_size() + 5 * kPointerSize); | 999 initial_map->instance_size() + 5 * kPointerSize); |
1013 initial_map->set_visitor_id(StaticVisitorBase::GetVisitorId(*initial_map)); | 1000 initial_map->set_visitor_id(StaticVisitorBase::GetVisitorId(*initial_map)); |
1014 | 1001 |
1015 // RegExp prototype object is itself a RegExp. | 1002 // RegExp prototype object is itself a RegExp. |
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1168 // Install the ThrowTypeError functions. | 1155 // Install the ThrowTypeError functions. |
1169 callee->set_getter(*throw_function); | 1156 callee->set_getter(*throw_function); |
1170 callee->set_setter(*throw_function); | 1157 callee->set_setter(*throw_function); |
1171 caller->set_getter(*throw_function); | 1158 caller->set_getter(*throw_function); |
1172 caller->set_setter(*throw_function); | 1159 caller->set_setter(*throw_function); |
1173 | 1160 |
1174 // Create the map. Allocate one in-object field for length. | 1161 // Create the map. Allocate one in-object field for length. |
1175 Handle<Map> map = factory->NewMap(JS_OBJECT_TYPE, | 1162 Handle<Map> map = factory->NewMap(JS_OBJECT_TYPE, |
1176 Heap::kStrictArgumentsObjectSize); | 1163 Heap::kStrictArgumentsObjectSize); |
1177 // Create the descriptor array for the arguments object. | 1164 // Create the descriptor array for the arguments object. |
1178 Handle<DescriptorArray> descriptors = factory->NewDescriptorArray(0, 3); | 1165 Map::EnsureDescriptorSlack(map, 3); |
1179 DescriptorArray::WhitenessWitness witness(*descriptors); | |
1180 map->set_instance_descriptors(*descriptors); | |
1181 | 1166 |
1182 { // length | 1167 { // length |
1183 FieldDescriptor d( | 1168 FieldDescriptor d( |
1184 factory->length_string(), 0, DONT_ENUM, Representation::Tagged()); | 1169 factory->length_string(), 0, DONT_ENUM, Representation::Tagged()); |
1185 map->AppendDescriptor(&d, witness); | 1170 map->AppendDescriptor(&d); |
1186 } | 1171 } |
1187 { // callee | 1172 { // callee |
1188 CallbacksDescriptor d(factory->callee_string(), | 1173 CallbacksDescriptor d(factory->callee_string(), |
1189 callee, | 1174 callee, |
1190 attributes); | 1175 attributes); |
1191 map->AppendDescriptor(&d, witness); | 1176 map->AppendDescriptor(&d); |
1192 } | 1177 } |
1193 { // caller | 1178 { // caller |
1194 CallbacksDescriptor d(factory->caller_string(), | 1179 CallbacksDescriptor d(factory->caller_string(), |
1195 caller, | 1180 caller, |
1196 attributes); | 1181 attributes); |
1197 map->AppendDescriptor(&d, witness); | 1182 map->AppendDescriptor(&d); |
1198 } | 1183 } |
1199 | 1184 |
1200 map->set_function_with_prototype(true); | 1185 map->set_function_with_prototype(true); |
1201 map->set_prototype(native_context()->object_function()->prototype()); | 1186 map->set_prototype(native_context()->object_function()->prototype()); |
1202 map->set_pre_allocated_property_fields(1); | 1187 map->set_pre_allocated_property_fields(1); |
1203 map->set_inobject_properties(1); | 1188 map->set_inobject_properties(1); |
1204 | 1189 |
1205 // Copy constructor from the sloppy arguments boilerplate. | 1190 // Copy constructor from the sloppy arguments boilerplate. |
1206 map->set_constructor( | 1191 map->set_constructor( |
1207 native_context()->sloppy_arguments_boilerplate()->map()->constructor()); | 1192 native_context()->sloppy_arguments_boilerplate()->map()->constructor()); |
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1373 native_context()->set_generator_object_prototype_map( | 1358 native_context()->set_generator_object_prototype_map( |
1374 *generator_object_prototype_map); | 1359 *generator_object_prototype_map); |
1375 | 1360 |
1376 // Create a map for generator result objects. | 1361 // Create a map for generator result objects. |
1377 ASSERT(object_function->initial_map()->inobject_properties() == 0); | 1362 ASSERT(object_function->initial_map()->inobject_properties() == 0); |
1378 STATIC_ASSERT(JSGeneratorObject::kResultPropertyCount == 2); | 1363 STATIC_ASSERT(JSGeneratorObject::kResultPropertyCount == 2); |
1379 Handle<Map> generator_result_map = Map::Create( | 1364 Handle<Map> generator_result_map = Map::Create( |
1380 object_function, JSGeneratorObject::kResultPropertyCount); | 1365 object_function, JSGeneratorObject::kResultPropertyCount); |
1381 ASSERT(generator_result_map->inobject_properties() == | 1366 ASSERT(generator_result_map->inobject_properties() == |
1382 JSGeneratorObject::kResultPropertyCount); | 1367 JSGeneratorObject::kResultPropertyCount); |
1383 | 1368 Map::EnsureDescriptorSlack( |
1384 Handle<DescriptorArray> descriptors = factory()->NewDescriptorArray(0, | 1369 generator_result_map, JSGeneratorObject::kResultPropertyCount); |
1385 JSGeneratorObject::kResultPropertyCount); | |
1386 DescriptorArray::WhitenessWitness witness(*descriptors); | |
1387 generator_result_map->set_instance_descriptors(*descriptors); | |
1388 | 1370 |
1389 Handle<String> value_string = factory()->InternalizeOneByteString( | 1371 Handle<String> value_string = factory()->InternalizeOneByteString( |
1390 STATIC_ASCII_VECTOR("value")); | 1372 STATIC_ASCII_VECTOR("value")); |
1391 FieldDescriptor value_descr(value_string, | 1373 FieldDescriptor value_descr(value_string, |
1392 JSGeneratorObject::kResultValuePropertyIndex, | 1374 JSGeneratorObject::kResultValuePropertyIndex, |
1393 NONE, | 1375 NONE, |
1394 Representation::Tagged()); | 1376 Representation::Tagged()); |
1395 generator_result_map->AppendDescriptor(&value_descr, witness); | 1377 generator_result_map->AppendDescriptor(&value_descr); |
1396 | 1378 |
1397 Handle<String> done_string = factory()->InternalizeOneByteString( | 1379 Handle<String> done_string = factory()->InternalizeOneByteString( |
1398 STATIC_ASCII_VECTOR("done")); | 1380 STATIC_ASCII_VECTOR("done")); |
1399 FieldDescriptor done_descr(done_string, | 1381 FieldDescriptor done_descr(done_string, |
1400 JSGeneratorObject::kResultDonePropertyIndex, | 1382 JSGeneratorObject::kResultDonePropertyIndex, |
1401 NONE, | 1383 NONE, |
1402 Representation::Tagged()); | 1384 Representation::Tagged()); |
1403 generator_result_map->AppendDescriptor(&done_descr, witness); | 1385 generator_result_map->AppendDescriptor(&done_descr); |
1404 | 1386 |
1405 generator_result_map->set_unused_property_fields(0); | 1387 generator_result_map->set_unused_property_fields(0); |
1406 ASSERT_EQ(JSGeneratorObject::kResultSize, | 1388 ASSERT_EQ(JSGeneratorObject::kResultSize, |
1407 generator_result_map->instance_size()); | 1389 generator_result_map->instance_size()); |
1408 native_context()->set_generator_result_map(*generator_result_map); | 1390 native_context()->set_generator_result_map(*generator_result_map); |
1409 } | 1391 } |
1410 } | 1392 } |
1411 | 1393 |
1412 | 1394 |
1413 bool Genesis::CompileBuiltin(Isolate* isolate, int index) { | 1395 bool Genesis::CompileBuiltin(Isolate* isolate, int index) { |
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1601 Handle<Code> code = internal_array_constructor_stub.GetCode(isolate()); | 1583 Handle<Code> code = internal_array_constructor_stub.GetCode(isolate()); |
1602 array_function->shared()->set_construct_stub(*code); | 1584 array_function->shared()->set_construct_stub(*code); |
1603 array_function->shared()->DontAdaptArguments(); | 1585 array_function->shared()->DontAdaptArguments(); |
1604 | 1586 |
1605 Handle<Map> original_map(array_function->initial_map()); | 1587 Handle<Map> original_map(array_function->initial_map()); |
1606 Handle<Map> initial_map = Map::Copy(original_map); | 1588 Handle<Map> initial_map = Map::Copy(original_map); |
1607 initial_map->set_elements_kind(elements_kind); | 1589 initial_map->set_elements_kind(elements_kind); |
1608 array_function->set_initial_map(*initial_map); | 1590 array_function->set_initial_map(*initial_map); |
1609 | 1591 |
1610 // Make "length" magic on instances. | 1592 // Make "length" magic on instances. |
1611 Handle<DescriptorArray> array_descriptors( | 1593 Map::EnsureDescriptorSlack(initial_map, 1); |
1612 factory()->NewDescriptorArray(0, 1)); | |
1613 DescriptorArray::WhitenessWitness witness(*array_descriptors); | |
1614 | 1594 |
1615 Handle<Foreign> array_length(factory()->NewForeign( | 1595 Handle<Foreign> array_length(factory()->NewForeign( |
1616 &Accessors::ArrayLength)); | 1596 &Accessors::ArrayLength)); |
1617 PropertyAttributes attribs = static_cast<PropertyAttributes>( | 1597 PropertyAttributes attribs = static_cast<PropertyAttributes>( |
1618 DONT_ENUM | DONT_DELETE); | 1598 DONT_ENUM | DONT_DELETE); |
1619 initial_map->set_instance_descriptors(*array_descriptors); | |
1620 | 1599 |
1621 { // Add length. | 1600 { // Add length. |
1622 CallbacksDescriptor d( | 1601 CallbacksDescriptor d( |
1623 factory()->length_string(), array_length, attribs); | 1602 factory()->length_string(), array_length, attribs); |
1624 array_function->initial_map()->AppendDescriptor(&d, witness); | 1603 array_function->initial_map()->AppendDescriptor(&d); |
1625 } | 1604 } |
1626 | 1605 |
1627 return array_function; | 1606 return array_function; |
1628 } | 1607 } |
1629 | 1608 |
1630 | 1609 |
1631 bool Genesis::InstallNatives() { | 1610 bool Genesis::InstallNatives() { |
1632 HandleScope scope(isolate()); | 1611 HandleScope scope(isolate()); |
1633 | 1612 |
1634 // Create a function for the builtins object. Allocate space for the | 1613 // Create a function for the builtins object. Allocate space for the |
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1695 Handle<JSFunction> script_fun = | 1674 Handle<JSFunction> script_fun = |
1696 InstallFunction(builtins, "Script", JS_VALUE_TYPE, JSValue::kSize, | 1675 InstallFunction(builtins, "Script", JS_VALUE_TYPE, JSValue::kSize, |
1697 isolate()->initial_object_prototype(), | 1676 isolate()->initial_object_prototype(), |
1698 Builtins::kIllegal, false, false); | 1677 Builtins::kIllegal, false, false); |
1699 Handle<JSObject> prototype = | 1678 Handle<JSObject> prototype = |
1700 factory()->NewJSObject(isolate()->object_function(), TENURED); | 1679 factory()->NewJSObject(isolate()->object_function(), TENURED); |
1701 Accessors::FunctionSetPrototype(script_fun, prototype); | 1680 Accessors::FunctionSetPrototype(script_fun, prototype); |
1702 native_context()->set_script_function(*script_fun); | 1681 native_context()->set_script_function(*script_fun); |
1703 | 1682 |
1704 Handle<Map> script_map = Handle<Map>(script_fun->initial_map()); | 1683 Handle<Map> script_map = Handle<Map>(script_fun->initial_map()); |
1705 | 1684 Map::EnsureDescriptorSlack(script_map, 13); |
1706 Handle<DescriptorArray> script_descriptors( | |
1707 factory()->NewDescriptorArray(0, 13)); | |
1708 DescriptorArray::WhitenessWitness witness(*script_descriptors); | |
1709 | 1685 |
1710 Handle<Foreign> script_source( | 1686 Handle<Foreign> script_source( |
1711 factory()->NewForeign(&Accessors::ScriptSource)); | 1687 factory()->NewForeign(&Accessors::ScriptSource)); |
1712 Handle<Foreign> script_name(factory()->NewForeign(&Accessors::ScriptName)); | 1688 Handle<Foreign> script_name(factory()->NewForeign(&Accessors::ScriptName)); |
1713 Handle<String> id_string(factory()->InternalizeOneByteString( | 1689 Handle<String> id_string(factory()->InternalizeOneByteString( |
1714 STATIC_ASCII_VECTOR("id"))); | 1690 STATIC_ASCII_VECTOR("id"))); |
1715 Handle<Foreign> script_id(factory()->NewForeign(&Accessors::ScriptId)); | 1691 Handle<Foreign> script_id(factory()->NewForeign(&Accessors::ScriptId)); |
1716 Handle<String> line_offset_string( | 1692 Handle<String> line_offset_string( |
1717 factory()->InternalizeOneByteString( | 1693 factory()->InternalizeOneByteString( |
1718 STATIC_ASCII_VECTOR("line_offset"))); | 1694 STATIC_ASCII_VECTOR("line_offset"))); |
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1750 STATIC_ASCII_VECTOR("eval_from_script_position"))); | 1726 STATIC_ASCII_VECTOR("eval_from_script_position"))); |
1751 Handle<Foreign> script_eval_from_script_position( | 1727 Handle<Foreign> script_eval_from_script_position( |
1752 factory()->NewForeign(&Accessors::ScriptEvalFromScriptPosition)); | 1728 factory()->NewForeign(&Accessors::ScriptEvalFromScriptPosition)); |
1753 Handle<String> eval_from_function_name_string( | 1729 Handle<String> eval_from_function_name_string( |
1754 factory()->InternalizeOneByteString( | 1730 factory()->InternalizeOneByteString( |
1755 STATIC_ASCII_VECTOR("eval_from_function_name"))); | 1731 STATIC_ASCII_VECTOR("eval_from_function_name"))); |
1756 Handle<Foreign> script_eval_from_function_name( | 1732 Handle<Foreign> script_eval_from_function_name( |
1757 factory()->NewForeign(&Accessors::ScriptEvalFromFunctionName)); | 1733 factory()->NewForeign(&Accessors::ScriptEvalFromFunctionName)); |
1758 PropertyAttributes attribs = | 1734 PropertyAttributes attribs = |
1759 static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY); | 1735 static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY); |
1760 script_map->set_instance_descriptors(*script_descriptors); | |
1761 | 1736 |
1762 { | 1737 { |
1763 CallbacksDescriptor d( | 1738 CallbacksDescriptor d( |
1764 factory()->source_string(), script_source, attribs); | 1739 factory()->source_string(), script_source, attribs); |
1765 script_map->AppendDescriptor(&d, witness); | 1740 script_map->AppendDescriptor(&d); |
1766 } | 1741 } |
1767 | 1742 |
1768 { | 1743 { |
1769 CallbacksDescriptor d(factory()->name_string(), script_name, attribs); | 1744 CallbacksDescriptor d(factory()->name_string(), script_name, attribs); |
1770 script_map->AppendDescriptor(&d, witness); | 1745 script_map->AppendDescriptor(&d); |
1771 } | 1746 } |
1772 | 1747 |
1773 { | 1748 { |
1774 CallbacksDescriptor d(id_string, script_id, attribs); | 1749 CallbacksDescriptor d(id_string, script_id, attribs); |
1775 script_map->AppendDescriptor(&d, witness); | 1750 script_map->AppendDescriptor(&d); |
1776 } | 1751 } |
1777 | 1752 |
1778 { | 1753 { |
1779 CallbacksDescriptor d(line_offset_string, script_line_offset, attribs); | 1754 CallbacksDescriptor d(line_offset_string, script_line_offset, attribs); |
1780 script_map->AppendDescriptor(&d, witness); | 1755 script_map->AppendDescriptor(&d); |
1781 } | 1756 } |
1782 | 1757 |
1783 { | 1758 { |
1784 CallbacksDescriptor d( | 1759 CallbacksDescriptor d( |
1785 column_offset_string, script_column_offset, attribs); | 1760 column_offset_string, script_column_offset, attribs); |
1786 script_map->AppendDescriptor(&d, witness); | 1761 script_map->AppendDescriptor(&d); |
1787 } | 1762 } |
1788 | 1763 |
1789 { | 1764 { |
1790 CallbacksDescriptor d(type_string, script_type, attribs); | 1765 CallbacksDescriptor d(type_string, script_type, attribs); |
1791 script_map->AppendDescriptor(&d, witness); | 1766 script_map->AppendDescriptor(&d); |
1792 } | 1767 } |
1793 | 1768 |
1794 { | 1769 { |
1795 CallbacksDescriptor d( | 1770 CallbacksDescriptor d( |
1796 compilation_type_string, script_compilation_type, attribs); | 1771 compilation_type_string, script_compilation_type, attribs); |
1797 script_map->AppendDescriptor(&d, witness); | 1772 script_map->AppendDescriptor(&d); |
1798 } | 1773 } |
1799 | 1774 |
1800 { | 1775 { |
1801 CallbacksDescriptor d(line_ends_string, script_line_ends, attribs); | 1776 CallbacksDescriptor d(line_ends_string, script_line_ends, attribs); |
1802 script_map->AppendDescriptor(&d, witness); | 1777 script_map->AppendDescriptor(&d); |
1803 } | 1778 } |
1804 | 1779 |
1805 { | 1780 { |
1806 CallbacksDescriptor d( | 1781 CallbacksDescriptor d( |
1807 context_data_string, script_context_data, attribs); | 1782 context_data_string, script_context_data, attribs); |
1808 script_map->AppendDescriptor(&d, witness); | 1783 script_map->AppendDescriptor(&d); |
1809 } | 1784 } |
1810 | 1785 |
1811 { | 1786 { |
1812 CallbacksDescriptor d( | 1787 CallbacksDescriptor d( |
1813 eval_from_script_string, script_eval_from_script, attribs); | 1788 eval_from_script_string, script_eval_from_script, attribs); |
1814 script_map->AppendDescriptor(&d, witness); | 1789 script_map->AppendDescriptor(&d); |
1815 } | 1790 } |
1816 | 1791 |
1817 { | 1792 { |
1818 CallbacksDescriptor d( | 1793 CallbacksDescriptor d( |
1819 eval_from_script_position_string, | 1794 eval_from_script_position_string, |
1820 script_eval_from_script_position, | 1795 script_eval_from_script_position, |
1821 attribs); | 1796 attribs); |
1822 script_map->AppendDescriptor(&d, witness); | 1797 script_map->AppendDescriptor(&d); |
1823 } | 1798 } |
1824 | 1799 |
1825 { | 1800 { |
1826 CallbacksDescriptor d( | 1801 CallbacksDescriptor d( |
1827 eval_from_function_name_string, | 1802 eval_from_function_name_string, |
1828 script_eval_from_function_name, | 1803 script_eval_from_function_name, |
1829 attribs); | 1804 attribs); |
1830 script_map->AppendDescriptor(&d, witness); | 1805 script_map->AppendDescriptor(&d); |
1831 } | 1806 } |
1832 | 1807 |
1833 // Allocate the empty script. | 1808 // Allocate the empty script. |
1834 Handle<Script> script = factory()->NewScript(factory()->empty_string()); | 1809 Handle<Script> script = factory()->NewScript(factory()->empty_string()); |
1835 script->set_type(Smi::FromInt(Script::TYPE_NATIVE)); | 1810 script->set_type(Smi::FromInt(Script::TYPE_NATIVE)); |
1836 heap()->public_set_empty_script(*script); | 1811 heap()->public_set_empty_script(*script); |
1837 } | 1812 } |
1838 { | 1813 { |
1839 // Builtin function for OpaqueReference -- a JSValue-based object, | 1814 // Builtin function for OpaqueReference -- a JSValue-based object, |
1840 // that keeps its field isolated from JavaScript code. It may store | 1815 // that keeps its field isolated from JavaScript code. It may store |
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1940 // Add initial map. | 1915 // Add initial map. |
1941 Handle<Map> initial_map = | 1916 Handle<Map> initial_map = |
1942 factory()->NewMap(JS_ARRAY_TYPE, JSRegExpResult::kSize); | 1917 factory()->NewMap(JS_ARRAY_TYPE, JSRegExpResult::kSize); |
1943 initial_map->set_constructor(*array_constructor); | 1918 initial_map->set_constructor(*array_constructor); |
1944 | 1919 |
1945 // Set prototype on map. | 1920 // Set prototype on map. |
1946 initial_map->set_non_instance_prototype(false); | 1921 initial_map->set_non_instance_prototype(false); |
1947 initial_map->set_prototype(*array_prototype); | 1922 initial_map->set_prototype(*array_prototype); |
1948 | 1923 |
1949 // Update map with length accessor from Array and add "index" and "input". | 1924 // Update map with length accessor from Array and add "index" and "input". |
1950 Handle<DescriptorArray> reresult_descriptors = | 1925 Map::EnsureDescriptorSlack(initial_map, 3); |
1951 factory()->NewDescriptorArray(0, 3); | |
1952 DescriptorArray::WhitenessWitness witness(*reresult_descriptors); | |
1953 initial_map->set_instance_descriptors(*reresult_descriptors); | |
1954 | 1926 |
1955 { | 1927 { |
1956 JSFunction* array_function = native_context()->array_function(); | 1928 JSFunction* array_function = native_context()->array_function(); |
1957 Handle<DescriptorArray> array_descriptors( | 1929 Handle<DescriptorArray> array_descriptors( |
1958 array_function->initial_map()->instance_descriptors()); | 1930 array_function->initial_map()->instance_descriptors()); |
1959 Handle<String> length = factory()->length_string(); | 1931 Handle<String> length = factory()->length_string(); |
1960 int old = array_descriptors->SearchWithCache( | 1932 int old = array_descriptors->SearchWithCache( |
1961 *length, array_function->initial_map()); | 1933 *length, array_function->initial_map()); |
1962 ASSERT(old != DescriptorArray::kNotFound); | 1934 ASSERT(old != DescriptorArray::kNotFound); |
1963 CallbacksDescriptor desc(length, | 1935 CallbacksDescriptor desc(length, |
1964 handle(array_descriptors->GetValue(old), | 1936 handle(array_descriptors->GetValue(old), |
1965 isolate()), | 1937 isolate()), |
1966 array_descriptors->GetDetails(old).attributes()); | 1938 array_descriptors->GetDetails(old).attributes()); |
1967 initial_map->AppendDescriptor(&desc, witness); | 1939 initial_map->AppendDescriptor(&desc); |
1968 } | 1940 } |
1969 { | 1941 { |
1970 FieldDescriptor index_field(factory()->index_string(), | 1942 FieldDescriptor index_field(factory()->index_string(), |
1971 JSRegExpResult::kIndexIndex, | 1943 JSRegExpResult::kIndexIndex, |
1972 NONE, | 1944 NONE, |
1973 Representation::Tagged()); | 1945 Representation::Tagged()); |
1974 initial_map->AppendDescriptor(&index_field, witness); | 1946 initial_map->AppendDescriptor(&index_field); |
1975 } | 1947 } |
1976 | 1948 |
1977 { | 1949 { |
1978 FieldDescriptor input_field(factory()->input_string(), | 1950 FieldDescriptor input_field(factory()->input_string(), |
1979 JSRegExpResult::kInputIndex, | 1951 JSRegExpResult::kInputIndex, |
1980 NONE, | 1952 NONE, |
1981 Representation::Tagged()); | 1953 Representation::Tagged()); |
1982 initial_map->AppendDescriptor(&input_field, witness); | 1954 initial_map->AppendDescriptor(&input_field); |
1983 } | 1955 } |
1984 | 1956 |
1985 initial_map->set_inobject_properties(2); | 1957 initial_map->set_inobject_properties(2); |
1986 initial_map->set_pre_allocated_property_fields(2); | 1958 initial_map->set_pre_allocated_property_fields(2); |
1987 initial_map->set_unused_property_fields(0); | 1959 initial_map->set_unused_property_fields(0); |
1988 | 1960 |
1989 native_context()->set_regexp_result_map(*initial_map); | 1961 native_context()->set_regexp_result_map(*initial_map); |
1990 } | 1962 } |
1991 | 1963 |
1992 #ifdef VERIFY_HEAP | 1964 #ifdef VERIFY_HEAP |
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2718 return from + sizeof(NestingCounterType); | 2690 return from + sizeof(NestingCounterType); |
2719 } | 2691 } |
2720 | 2692 |
2721 | 2693 |
2722 // Called when the top-level V8 mutex is destroyed. | 2694 // Called when the top-level V8 mutex is destroyed. |
2723 void Bootstrapper::FreeThreadResources() { | 2695 void Bootstrapper::FreeThreadResources() { |
2724 ASSERT(!IsActive()); | 2696 ASSERT(!IsActive()); |
2725 } | 2697 } |
2726 | 2698 |
2727 } } // namespace v8::internal | 2699 } } // namespace v8::internal |
OLD | NEW |