OLD | NEW |
1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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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919 void* backing_store = array_buffer->backing_store(); | 919 void* backing_store = array_buffer->backing_store(); |
920 size_t byte_length = NumberToSize(isolate, array_buffer->byte_length()); | 920 size_t byte_length = NumberToSize(isolate, array_buffer->byte_length()); |
921 array_buffer->set_is_external(true); | 921 array_buffer->set_is_external(true); |
922 Runtime::NeuterArrayBuffer(array_buffer); | 922 Runtime::NeuterArrayBuffer(array_buffer); |
923 V8::ArrayBufferAllocator()->Free(backing_store, byte_length); | 923 V8::ArrayBufferAllocator()->Free(backing_store, byte_length); |
924 return isolate->heap()->undefined_value(); | 924 return isolate->heap()->undefined_value(); |
925 } | 925 } |
926 | 926 |
927 | 927 |
928 void Runtime::ArrayIdToTypeAndSize( | 928 void Runtime::ArrayIdToTypeAndSize( |
929 int arrayId, | 929 int arrayId, ExternalArrayType* array_type, size_t* element_size) { |
930 ExternalArrayType* array_type, | |
931 ElementsKind* external_elements_kind, | |
932 ElementsKind* fixed_elements_kind, | |
933 size_t* element_size) { | |
934 switch (arrayId) { | 930 switch (arrayId) { |
935 #define ARRAY_ID_CASE(Type, type, TYPE, ctype, size) \ | 931 #define ARRAY_ID_CASE(Type, type, TYPE, ctype, size) \ |
936 case ARRAY_ID_##TYPE: \ | 932 case ARRAY_ID_##TYPE: \ |
937 *array_type = kExternal##Type##Array; \ | 933 *array_type = kExternal##Type##Array; \ |
938 *external_elements_kind = EXTERNAL_##TYPE##_ELEMENTS; \ | |
939 *fixed_elements_kind = TYPE##_ELEMENTS; \ | |
940 *element_size = size; \ | 934 *element_size = size; \ |
941 break; | 935 break; |
942 | 936 |
943 TYPED_ARRAYS(ARRAY_ID_CASE) | 937 TYPED_ARRAYS(ARRAY_ID_CASE) |
944 #undef ARRAY_ID_CASE | 938 #undef ARRAY_ID_CASE |
945 | 939 |
946 default: | 940 default: |
947 UNREACHABLE(); | 941 UNREACHABLE(); |
948 } | 942 } |
949 } | 943 } |
950 | 944 |
951 | 945 |
952 RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayInitialize) { | 946 RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayInitialize) { |
953 HandleScope scope(isolate); | 947 HandleScope scope(isolate); |
954 ASSERT(args.length() == 5); | 948 ASSERT(args.length() == 5); |
955 CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, holder, 0); | 949 CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, holder, 0); |
956 CONVERT_SMI_ARG_CHECKED(arrayId, 1); | 950 CONVERT_SMI_ARG_CHECKED(arrayId, 1); |
957 CONVERT_ARG_HANDLE_CHECKED(Object, maybe_buffer, 2); | 951 CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, buffer, 2); |
958 CONVERT_ARG_HANDLE_CHECKED(Object, byte_offset_object, 3); | 952 CONVERT_ARG_HANDLE_CHECKED(Object, byte_offset_object, 3); |
959 CONVERT_ARG_HANDLE_CHECKED(Object, byte_length_object, 4); | 953 CONVERT_ARG_HANDLE_CHECKED(Object, byte_length_object, 4); |
960 | 954 |
961 ASSERT(holder->GetInternalFieldCount() == | 955 ASSERT(holder->GetInternalFieldCount() == |
962 v8::ArrayBufferView::kInternalFieldCount); | 956 v8::ArrayBufferView::kInternalFieldCount); |
963 for (int i = 0; i < v8::ArrayBufferView::kInternalFieldCount; i++) { | 957 for (int i = 0; i < v8::ArrayBufferView::kInternalFieldCount; i++) { |
964 holder->SetInternalField(i, Smi::FromInt(0)); | 958 holder->SetInternalField(i, Smi::FromInt(0)); |
965 } | 959 } |
966 | 960 |
967 ExternalArrayType array_type = kExternalInt8Array; // Bogus initialization. | 961 ExternalArrayType array_type = kExternalInt8Array; // Bogus initialization. |
968 size_t element_size = 1; // Bogus initialization. | 962 size_t element_size = 1; // Bogus initialization. |
969 ElementsKind external_elements_kind = EXTERNAL_INT8_ELEMENTS; | 963 Runtime::ArrayIdToTypeAndSize(arrayId, &array_type, &element_size); |
970 ElementsKind fixed_elements_kind = INT8_ELEMENTS; | |
971 Runtime::ArrayIdToTypeAndSize(arrayId, | |
972 &array_type, | |
973 &external_elements_kind, | |
974 &fixed_elements_kind, | |
975 &element_size); | |
976 | 964 |
| 965 holder->set_buffer(*buffer); |
977 holder->set_byte_offset(*byte_offset_object); | 966 holder->set_byte_offset(*byte_offset_object); |
978 holder->set_byte_length(*byte_length_object); | 967 holder->set_byte_length(*byte_length_object); |
979 | 968 |
980 size_t byte_offset = NumberToSize(isolate, *byte_offset_object); | 969 size_t byte_offset = NumberToSize(isolate, *byte_offset_object); |
981 size_t byte_length = NumberToSize(isolate, *byte_length_object); | 970 size_t byte_length = NumberToSize(isolate, *byte_length_object); |
| 971 size_t array_buffer_byte_length = |
| 972 NumberToSize(isolate, buffer->byte_length()); |
| 973 CHECK(byte_offset <= array_buffer_byte_length); |
| 974 CHECK(array_buffer_byte_length - byte_offset >= byte_length); |
982 | 975 |
983 CHECK_EQ(0, static_cast<int>(byte_length % element_size)); | 976 CHECK_EQ(0, static_cast<int>(byte_length % element_size)); |
984 size_t length = byte_length / element_size; | 977 size_t length = byte_length / element_size; |
985 | 978 |
986 if (length > static_cast<unsigned>(Smi::kMaxValue)) { | 979 if (length > static_cast<unsigned>(Smi::kMaxValue)) { |
987 return isolate->Throw(*isolate->factory()-> | 980 return isolate->Throw(*isolate->factory()-> |
988 NewRangeError("invalid_typed_array_length", | 981 NewRangeError("invalid_typed_array_length", |
989 HandleVector<Object>(NULL, 0))); | 982 HandleVector<Object>(NULL, 0))); |
990 } | 983 } |
991 | 984 |
992 Handle<Object> length_obj = isolate->factory()->NewNumberFromSize(length); | 985 Handle<Object> length_obj = isolate->factory()->NewNumberFromSize(length); |
993 holder->set_length(*length_obj); | 986 holder->set_length(*length_obj); |
994 if (!maybe_buffer->IsNull()) { | 987 holder->set_weak_next(buffer->weak_first_view()); |
995 Handle<JSArrayBuffer> buffer(JSArrayBuffer::cast(*maybe_buffer)); | 988 buffer->set_weak_first_view(*holder); |
996 | 989 |
997 size_t array_buffer_byte_length = | 990 Handle<ExternalArray> elements = |
998 NumberToSize(isolate, buffer->byte_length()); | 991 isolate->factory()->NewExternalArray( |
999 CHECK(byte_offset <= array_buffer_byte_length); | 992 static_cast<int>(length), array_type, |
1000 CHECK(array_buffer_byte_length - byte_offset >= byte_length); | 993 static_cast<uint8_t*>(buffer->backing_store()) + byte_offset); |
1001 | 994 holder->set_elements(*elements); |
1002 holder->set_buffer(*buffer); | |
1003 holder->set_weak_next(buffer->weak_first_view()); | |
1004 buffer->set_weak_first_view(*holder); | |
1005 | |
1006 Handle<ExternalArray> elements = | |
1007 isolate->factory()->NewExternalArray( | |
1008 static_cast<int>(length), array_type, | |
1009 static_cast<uint8_t*>(buffer->backing_store()) + byte_offset); | |
1010 Handle<Map> map = | |
1011 isolate->factory()->GetElementsTransitionMap( | |
1012 holder, external_elements_kind); | |
1013 holder->set_map_and_elements(*map, *elements); | |
1014 ASSERT(IsExternalArrayElementsKind(holder->map()->elements_kind())); | |
1015 } else { | |
1016 holder->set_buffer(Smi::FromInt(0)); | |
1017 holder->set_weak_next(isolate->heap()->undefined_value()); | |
1018 Handle<FixedTypedArrayBase> elements = | |
1019 isolate->factory()->NewFixedTypedArray( | |
1020 static_cast<int>(length), array_type); | |
1021 holder->set_elements(*elements); | |
1022 } | |
1023 return isolate->heap()->undefined_value(); | 995 return isolate->heap()->undefined_value(); |
1024 } | 996 } |
1025 | 997 |
1026 | 998 |
1027 // Initializes a typed array from an array-like object. | 999 // Initializes a typed array from an array-like object. |
1028 // If an array-like object happens to be a typed array of the same type, | 1000 // If an array-like object happens to be a typed array of the same type, |
1029 // initializes backing store using memove. | 1001 // initializes backing store using memove. |
1030 // | 1002 // |
1031 // Returns true if backing store was initialized or false otherwise. | 1003 // Returns true if backing store was initialized or false otherwise. |
1032 RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayInitializeFromArrayLike) { | 1004 RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayInitializeFromArrayLike) { |
1033 HandleScope scope(isolate); | 1005 HandleScope scope(isolate); |
1034 ASSERT(args.length() == 4); | 1006 ASSERT(args.length() == 4); |
1035 CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, holder, 0); | 1007 CONVERT_ARG_HANDLE_CHECKED(JSTypedArray, holder, 0); |
1036 CONVERT_SMI_ARG_CHECKED(arrayId, 1); | 1008 CONVERT_SMI_ARG_CHECKED(arrayId, 1); |
1037 CONVERT_ARG_HANDLE_CHECKED(Object, source, 2); | 1009 CONVERT_ARG_HANDLE_CHECKED(Object, source, 2); |
1038 CONVERT_ARG_HANDLE_CHECKED(Object, length_obj, 3); | 1010 CONVERT_ARG_HANDLE_CHECKED(Object, length_obj, 3); |
1039 | 1011 |
1040 ASSERT(holder->GetInternalFieldCount() == | 1012 ASSERT(holder->GetInternalFieldCount() == |
1041 v8::ArrayBufferView::kInternalFieldCount); | 1013 v8::ArrayBufferView::kInternalFieldCount); |
1042 for (int i = 0; i < v8::ArrayBufferView::kInternalFieldCount; i++) { | 1014 for (int i = 0; i < v8::ArrayBufferView::kInternalFieldCount; i++) { |
1043 holder->SetInternalField(i, Smi::FromInt(0)); | 1015 holder->SetInternalField(i, Smi::FromInt(0)); |
1044 } | 1016 } |
1045 | 1017 |
1046 ExternalArrayType array_type = kExternalInt8Array; // Bogus initialization. | 1018 ExternalArrayType array_type = kExternalInt8Array; // Bogus initialization. |
1047 size_t element_size = 1; // Bogus initialization. | 1019 size_t element_size = 1; // Bogus initialization. |
1048 ElementsKind external_elements_kind; | 1020 Runtime::ArrayIdToTypeAndSize(arrayId, &array_type, &element_size); |
1049 ElementsKind fixed_elements_kind; | |
1050 Runtime::ArrayIdToTypeAndSize(arrayId, | |
1051 &array_type, | |
1052 &external_elements_kind, | |
1053 &fixed_elements_kind, | |
1054 &element_size); | |
1055 | 1021 |
1056 Handle<JSArrayBuffer> buffer = isolate->factory()->NewJSArrayBuffer(); | 1022 Handle<JSArrayBuffer> buffer = isolate->factory()->NewJSArrayBuffer(); |
1057 if (source->IsJSTypedArray() && | 1023 if (source->IsJSTypedArray() && |
1058 JSTypedArray::cast(*source)->type() == array_type) { | 1024 JSTypedArray::cast(*source)->type() == array_type) { |
1059 length_obj = Handle<Object>(JSTypedArray::cast(*source)->length(), isolate); | 1025 length_obj = Handle<Object>(JSTypedArray::cast(*source)->length(), isolate); |
1060 } | 1026 } |
1061 size_t length = NumberToSize(isolate, *length_obj); | 1027 size_t length = NumberToSize(isolate, *length_obj); |
1062 | 1028 |
1063 if ((length > static_cast<unsigned>(Smi::kMaxValue)) || | 1029 if ((length > static_cast<unsigned>(Smi::kMaxValue)) || |
1064 (length > (kMaxInt / element_size))) { | 1030 (length > (kMaxInt / element_size))) { |
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1097 isolate->factory()->NewNumberFromSize(byte_length)); | 1063 isolate->factory()->NewNumberFromSize(byte_length)); |
1098 holder->set_byte_length(*byte_length_obj); | 1064 holder->set_byte_length(*byte_length_obj); |
1099 holder->set_length(*length_obj); | 1065 holder->set_length(*length_obj); |
1100 holder->set_weak_next(buffer->weak_first_view()); | 1066 holder->set_weak_next(buffer->weak_first_view()); |
1101 buffer->set_weak_first_view(*holder); | 1067 buffer->set_weak_first_view(*holder); |
1102 | 1068 |
1103 Handle<ExternalArray> elements = | 1069 Handle<ExternalArray> elements = |
1104 isolate->factory()->NewExternalArray( | 1070 isolate->factory()->NewExternalArray( |
1105 static_cast<int>(length), array_type, | 1071 static_cast<int>(length), array_type, |
1106 static_cast<uint8_t*>(buffer->backing_store())); | 1072 static_cast<uint8_t*>(buffer->backing_store())); |
1107 Handle<Map> map = | 1073 holder->set_elements(*elements); |
1108 isolate->factory()->GetElementsTransitionMap( | |
1109 holder, external_elements_kind); | |
1110 holder->set_map_and_elements(*map, *elements); | |
1111 | 1074 |
1112 if (source->IsJSTypedArray()) { | 1075 if (source->IsJSTypedArray()) { |
1113 Handle<JSTypedArray> typed_array(JSTypedArray::cast(*source)); | 1076 Handle<JSTypedArray> typed_array(JSTypedArray::cast(*source)); |
1114 | 1077 |
1115 if (typed_array->type() == holder->type()) { | 1078 if (typed_array->type() == holder->type()) { |
1116 uint8_t* backing_store = | 1079 uint8_t* backing_store = |
1117 static_cast<uint8_t*>( | 1080 static_cast<uint8_t*>( |
1118 typed_array->GetBuffer()->backing_store()); | 1081 JSArrayBuffer::cast(typed_array->buffer())->backing_store()); |
1119 size_t source_byte_offset = | 1082 size_t source_byte_offset = |
1120 NumberToSize(isolate, typed_array->byte_offset()); | 1083 NumberToSize(isolate, typed_array->byte_offset()); |
1121 memcpy( | 1084 memcpy( |
1122 buffer->backing_store(), | 1085 buffer->backing_store(), |
1123 backing_store + source_byte_offset, | 1086 backing_store + source_byte_offset, |
1124 byte_length); | 1087 byte_length); |
1125 return *isolate->factory()->true_value(); | 1088 return *isolate->factory()->true_value(); |
1126 } else { | 1089 } else { |
1127 return *isolate->factory()->false_value(); | 1090 return *isolate->factory()->false_value(); |
1128 } | 1091 } |
1129 } | 1092 } |
1130 | 1093 |
1131 return *isolate->factory()->false_value(); | 1094 return *isolate->factory()->false_value(); |
1132 } | 1095 } |
1133 | 1096 |
1134 | 1097 |
1135 #define TYPED_ARRAY_GETTER(getter, accessor) \ | 1098 #define TYPED_ARRAY_GETTER(getter, accessor) \ |
1136 RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayGet##getter) { \ | 1099 RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayGet##getter) { \ |
1137 HandleScope scope(isolate); \ | 1100 HandleScope scope(isolate); \ |
1138 ASSERT(args.length() == 1); \ | 1101 ASSERT(args.length() == 1); \ |
1139 CONVERT_ARG_HANDLE_CHECKED(Object, holder, 0); \ | 1102 CONVERT_ARG_HANDLE_CHECKED(Object, holder, 0); \ |
1140 if (!holder->IsJSTypedArray()) \ | 1103 if (!holder->IsJSTypedArray()) \ |
1141 return isolate->Throw(*isolate->factory()->NewTypeError( \ | 1104 return isolate->Throw(*isolate->factory()->NewTypeError( \ |
1142 "not_typed_array", HandleVector<Object>(NULL, 0))); \ | 1105 "not_typed_array", HandleVector<Object>(NULL, 0))); \ |
1143 Handle<JSTypedArray> typed_array(JSTypedArray::cast(*holder)); \ | 1106 Handle<JSTypedArray> typed_array(JSTypedArray::cast(*holder)); \ |
1144 return typed_array->accessor(); \ | 1107 return typed_array->accessor(); \ |
1145 } | 1108 } |
1146 | 1109 |
| 1110 TYPED_ARRAY_GETTER(Buffer, buffer) |
1147 TYPED_ARRAY_GETTER(ByteLength, byte_length) | 1111 TYPED_ARRAY_GETTER(ByteLength, byte_length) |
1148 TYPED_ARRAY_GETTER(ByteOffset, byte_offset) | 1112 TYPED_ARRAY_GETTER(ByteOffset, byte_offset) |
1149 TYPED_ARRAY_GETTER(Length, length) | 1113 TYPED_ARRAY_GETTER(Length, length) |
1150 | 1114 |
1151 #undef TYPED_ARRAY_GETTER | 1115 #undef TYPED_ARRAY_GETTER |
1152 | 1116 |
1153 RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayGetBuffer) { | |
1154 HandleScope scope(isolate); | |
1155 ASSERT(args.length() == 1); | |
1156 CONVERT_ARG_HANDLE_CHECKED(Object, holder, 0); | |
1157 if (!holder->IsJSTypedArray()) | |
1158 return isolate->Throw(*isolate->factory()->NewTypeError( | |
1159 "not_typed_array", HandleVector<Object>(NULL, 0))); | |
1160 Handle<JSTypedArray> typed_array(JSTypedArray::cast(*holder)); | |
1161 return *typed_array->GetBuffer(); | |
1162 } | |
1163 | |
1164 | |
1165 // Return codes for Runtime_TypedArraySetFastCases. | 1117 // Return codes for Runtime_TypedArraySetFastCases. |
1166 // Should be synchronized with typedarray.js natives. | 1118 // Should be synchronized with typedarray.js natives. |
1167 enum TypedArraySetResultCodes { | 1119 enum TypedArraySetResultCodes { |
1168 // Set from typed array of the same type. | 1120 // Set from typed array of the same type. |
1169 // This is processed by TypedArraySetFastCases | 1121 // This is processed by TypedArraySetFastCases |
1170 TYPED_ARRAY_SET_TYPED_ARRAY_SAME_TYPE = 0, | 1122 TYPED_ARRAY_SET_TYPED_ARRAY_SAME_TYPE = 0, |
1171 // Set from typed array of the different type, overlapping in memory. | 1123 // Set from typed array of the different type, overlapping in memory. |
1172 TYPED_ARRAY_SET_TYPED_ARRAY_OVERLAPPING = 1, | 1124 TYPED_ARRAY_SET_TYPED_ARRAY_OVERLAPPING = 1, |
1173 // Set from typed array of the different type, non-overlapping. | 1125 // Set from typed array of the different type, non-overlapping. |
1174 TYPED_ARRAY_SET_TYPED_ARRAY_NONOVERLAPPING = 2, | 1126 TYPED_ARRAY_SET_TYPED_ARRAY_NONOVERLAPPING = 2, |
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1200 if (offset > target_length || | 1152 if (offset > target_length || |
1201 offset + source_length > target_length || | 1153 offset + source_length > target_length || |
1202 offset + source_length < offset) // overflow | 1154 offset + source_length < offset) // overflow |
1203 return isolate->Throw(*isolate->factory()->NewRangeError( | 1155 return isolate->Throw(*isolate->factory()->NewRangeError( |
1204 "typed_array_set_source_too_large", HandleVector<Object>(NULL, 0))); | 1156 "typed_array_set_source_too_large", HandleVector<Object>(NULL, 0))); |
1205 | 1157 |
1206 size_t target_offset = NumberToSize(isolate, target->byte_offset()); | 1158 size_t target_offset = NumberToSize(isolate, target->byte_offset()); |
1207 size_t source_offset = NumberToSize(isolate, source->byte_offset()); | 1159 size_t source_offset = NumberToSize(isolate, source->byte_offset()); |
1208 uint8_t* target_base = | 1160 uint8_t* target_base = |
1209 static_cast<uint8_t*>( | 1161 static_cast<uint8_t*>( |
1210 target->GetBuffer()->backing_store()) + target_offset; | 1162 JSArrayBuffer::cast(target->buffer())->backing_store()) + target_offset; |
1211 uint8_t* source_base = | 1163 uint8_t* source_base = |
1212 static_cast<uint8_t*>( | 1164 static_cast<uint8_t*>( |
1213 source->GetBuffer()->backing_store()) + source_offset; | 1165 JSArrayBuffer::cast(source->buffer())->backing_store()) + source_offset; |
1214 | 1166 |
1215 // Typed arrays of the same type: use memmove. | 1167 // Typed arrays of the same type: use memmove. |
1216 if (target->type() == source->type()) { | 1168 if (target->type() == source->type()) { |
1217 memmove(target_base + offset * target->element_size(), | 1169 memmove(target_base + offset * target->element_size(), |
1218 source_base, source_byte_length); | 1170 source_base, source_byte_length); |
1219 return Smi::FromInt(TYPED_ARRAY_SET_TYPED_ARRAY_SAME_TYPE); | 1171 return Smi::FromInt(TYPED_ARRAY_SET_TYPED_ARRAY_SAME_TYPE); |
1220 } | 1172 } |
1221 | 1173 |
1222 // Typed arrays of different types over the same backing store | 1174 // Typed arrays of different types over the same backing store |
1223 if ((source_base <= target_base && | 1175 if ((source_base <= target_base && |
1224 source_base + source_byte_length > target_base) || | 1176 source_base + source_byte_length > target_base) || |
1225 (target_base <= source_base && | 1177 (target_base <= source_base && |
1226 target_base + target_byte_length > source_base)) { | 1178 target_base + target_byte_length > source_base)) { |
1227 // We do not support overlapping ArrayBuffers | 1179 // We do not support overlapping ArrayBuffers |
1228 ASSERT( | 1180 ASSERT( |
1229 target->GetBuffer()->backing_store() == | 1181 JSArrayBuffer::cast(target->buffer())->backing_store() == |
1230 source->GetBuffer()->backing_store()); | 1182 JSArrayBuffer::cast(source->buffer())->backing_store()); |
1231 return Smi::FromInt(TYPED_ARRAY_SET_TYPED_ARRAY_OVERLAPPING); | 1183 return Smi::FromInt(TYPED_ARRAY_SET_TYPED_ARRAY_OVERLAPPING); |
1232 } else { // Non-overlapping typed arrays | 1184 } else { // Non-overlapping typed arrays |
1233 return Smi::FromInt(TYPED_ARRAY_SET_TYPED_ARRAY_NONOVERLAPPING); | 1185 return Smi::FromInt(TYPED_ARRAY_SET_TYPED_ARRAY_NONOVERLAPPING); |
1234 } | 1186 } |
1235 } | 1187 } |
1236 | 1188 |
1237 | 1189 |
1238 RUNTIME_FUNCTION(MaybeObject*, Runtime_TypedArrayMaxSizeInHeap) { | |
1239 ASSERT_OBJECT_SIZE(FLAG_typed_array_max_size_in_heap); | |
1240 return Smi::FromInt(FLAG_typed_array_max_size_in_heap); | |
1241 } | |
1242 | |
1243 | |
1244 RUNTIME_FUNCTION(MaybeObject*, Runtime_DataViewInitialize) { | 1190 RUNTIME_FUNCTION(MaybeObject*, Runtime_DataViewInitialize) { |
1245 HandleScope scope(isolate); | 1191 HandleScope scope(isolate); |
1246 ASSERT(args.length() == 4); | 1192 ASSERT(args.length() == 4); |
1247 CONVERT_ARG_HANDLE_CHECKED(JSDataView, holder, 0); | 1193 CONVERT_ARG_HANDLE_CHECKED(JSDataView, holder, 0); |
1248 CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, buffer, 1); | 1194 CONVERT_ARG_HANDLE_CHECKED(JSArrayBuffer, buffer, 1); |
1249 CONVERT_ARG_HANDLE_CHECKED(Object, byte_offset, 2); | 1195 CONVERT_ARG_HANDLE_CHECKED(Object, byte_offset, 2); |
1250 CONVERT_ARG_HANDLE_CHECKED(Object, byte_length, 3); | 1196 CONVERT_ARG_HANDLE_CHECKED(Object, byte_length, 3); |
1251 | 1197 |
1252 ASSERT(holder->GetInternalFieldCount() == | 1198 ASSERT(holder->GetInternalFieldCount() == |
1253 v8::ArrayBufferView::kInternalFieldCount); | 1199 v8::ArrayBufferView::kInternalFieldCount); |
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14785 RUNTIME_FUNCTION(MaybeObject*, Runtime_HasExternal##Type##Elements) { \ | 14731 RUNTIME_FUNCTION(MaybeObject*, Runtime_HasExternal##Type##Elements) { \ |
14786 CONVERT_ARG_CHECKED(JSObject, obj, 0); \ | 14732 CONVERT_ARG_CHECKED(JSObject, obj, 0); \ |
14787 return isolate->heap()->ToBoolean(obj->HasExternal##Type##Elements()); \ | 14733 return isolate->heap()->ToBoolean(obj->HasExternal##Type##Elements()); \ |
14788 } | 14734 } |
14789 | 14735 |
14790 TYPED_ARRAYS(TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION) | 14736 TYPED_ARRAYS(TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION) |
14791 | 14737 |
14792 #undef TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION | 14738 #undef TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION |
14793 | 14739 |
14794 | 14740 |
14795 #define FIXED_TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION(Type, type, TYPE, ctype, s) \ | |
14796 RUNTIME_FUNCTION(MaybeObject*, Runtime_HasFixed##Type##Elements) { \ | |
14797 CONVERT_ARG_CHECKED(JSObject, obj, 0); \ | |
14798 return isolate->heap()->ToBoolean(obj->HasFixed##Type##Elements()); \ | |
14799 } | |
14800 | |
14801 TYPED_ARRAYS(FIXED_TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION) | |
14802 | |
14803 #undef FIXED_TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION | |
14804 | |
14805 | |
14806 RUNTIME_FUNCTION(MaybeObject*, Runtime_HaveSameMap) { | 14741 RUNTIME_FUNCTION(MaybeObject*, Runtime_HaveSameMap) { |
14807 SealHandleScope shs(isolate); | 14742 SealHandleScope shs(isolate); |
14808 ASSERT(args.length() == 2); | 14743 ASSERT(args.length() == 2); |
14809 CONVERT_ARG_CHECKED(JSObject, obj1, 0); | 14744 CONVERT_ARG_CHECKED(JSObject, obj1, 0); |
14810 CONVERT_ARG_CHECKED(JSObject, obj2, 1); | 14745 CONVERT_ARG_CHECKED(JSObject, obj2, 1); |
14811 return isolate->heap()->ToBoolean(obj1->map() == obj2->map()); | 14746 return isolate->heap()->ToBoolean(obj1->map() == obj2->map()); |
14812 } | 14747 } |
14813 | 14748 |
14814 | 14749 |
14815 RUNTIME_FUNCTION(MaybeObject*, Runtime_IsAccessCheckNeeded) { | 14750 RUNTIME_FUNCTION(MaybeObject*, Runtime_IsAccessCheckNeeded) { |
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15169 // Handle last resort GC and make sure to allow future allocations | 15104 // Handle last resort GC and make sure to allow future allocations |
15170 // to grow the heap without causing GCs (if possible). | 15105 // to grow the heap without causing GCs (if possible). |
15171 isolate->counters()->gc_last_resort_from_js()->Increment(); | 15106 isolate->counters()->gc_last_resort_from_js()->Increment(); |
15172 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, | 15107 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, |
15173 "Runtime::PerformGC"); | 15108 "Runtime::PerformGC"); |
15174 } | 15109 } |
15175 } | 15110 } |
15176 | 15111 |
15177 | 15112 |
15178 } } // namespace v8::internal | 15113 } } // namespace v8::internal |
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