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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 // Review notes: | 5 // Review notes: |
6 // | 6 // |
7 // - The use of macros in these inline functions may seem superfluous | 7 // - The use of macros in these inline functions may seem superfluous |
8 // but it is absolutely needed to make sure gcc generates optimal | 8 // but it is absolutely needed to make sure gcc generates optimal |
9 // code. gcc is not happy when attempting to inline too deep. | 9 // code. gcc is not happy when attempting to inline too deep. |
10 // | 10 // |
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2299 | 2299 |
2300 Object* FixedArray::get(int index) const { | 2300 Object* FixedArray::get(int index) const { |
2301 SLOW_DCHECK(index >= 0 && index < this->length()); | 2301 SLOW_DCHECK(index >= 0 && index < this->length()); |
2302 return READ_FIELD(this, kHeaderSize + index * kPointerSize); | 2302 return READ_FIELD(this, kHeaderSize + index * kPointerSize); |
2303 } | 2303 } |
2304 | 2304 |
2305 Handle<Object> FixedArray::get(FixedArray* array, int index, Isolate* isolate) { | 2305 Handle<Object> FixedArray::get(FixedArray* array, int index, Isolate* isolate) { |
2306 return handle(array->get(index), isolate); | 2306 return handle(array->get(index), isolate); |
2307 } | 2307 } |
2308 | 2308 |
2309 template <class T> | |
2310 MaybeHandle<T> FixedArray::GetValue(int index) const { | |
2311 Object* obj = get(index); | |
2312 if (obj->IsUndefined(GetIsolate())) return MaybeHandle<T>(); | |
2313 return Handle<T>(T::cast(obj)); | |
2314 } | |
2315 | |
2316 template <class T> | |
2317 Handle<T> FixedArray::GetValueChecked(int index) const { | |
2318 Object* obj = get(index); | |
2319 CHECK(!obj->IsUndefined(GetIsolate())); | |
2320 return Handle<T>(T::cast(obj)); | |
2321 } | |
2322 | 2309 |
2323 bool FixedArray::is_the_hole(int index) { | 2310 bool FixedArray::is_the_hole(int index) { |
2324 return get(index) == GetHeap()->the_hole_value(); | 2311 return get(index) == GetHeap()->the_hole_value(); |
2325 } | 2312 } |
2326 | 2313 |
| 2314 |
2327 void FixedArray::set(int index, Smi* value) { | 2315 void FixedArray::set(int index, Smi* value) { |
2328 DCHECK(map() != GetHeap()->fixed_cow_array_map()); | 2316 DCHECK(map() != GetHeap()->fixed_cow_array_map()); |
2329 DCHECK(index >= 0 && index < this->length()); | 2317 DCHECK(index >= 0 && index < this->length()); |
2330 DCHECK(reinterpret_cast<Object*>(value)->IsSmi()); | 2318 DCHECK(reinterpret_cast<Object*>(value)->IsSmi()); |
2331 int offset = kHeaderSize + index * kPointerSize; | 2319 int offset = kHeaderSize + index * kPointerSize; |
2332 WRITE_FIELD(this, offset, value); | 2320 WRITE_FIELD(this, offset, value); |
2333 } | 2321 } |
2334 | 2322 |
2335 | 2323 |
2336 void FixedArray::set(int index, Object* value) { | 2324 void FixedArray::set(int index, Object* value) { |
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3986 } | 3974 } |
3987 | 3975 |
3988 | 3976 |
3989 int ByteArray::Size() { return RoundUp(length() + kHeaderSize, kPointerSize); } | 3977 int ByteArray::Size() { return RoundUp(length() + kHeaderSize, kPointerSize); } |
3990 | 3978 |
3991 byte ByteArray::get(int index) { | 3979 byte ByteArray::get(int index) { |
3992 DCHECK(index >= 0 && index < this->length()); | 3980 DCHECK(index >= 0 && index < this->length()); |
3993 return READ_BYTE_FIELD(this, kHeaderSize + index * kCharSize); | 3981 return READ_BYTE_FIELD(this, kHeaderSize + index * kCharSize); |
3994 } | 3982 } |
3995 | 3983 |
3996 const byte* ByteArray::data() const { | |
3997 return reinterpret_cast<const byte*>(FIELD_ADDR_CONST(this, kHeaderSize)); | |
3998 } | |
3999 | 3984 |
4000 void ByteArray::set(int index, byte value) { | 3985 void ByteArray::set(int index, byte value) { |
4001 DCHECK(index >= 0 && index < this->length()); | 3986 DCHECK(index >= 0 && index < this->length()); |
4002 WRITE_BYTE_FIELD(this, kHeaderSize + index * kCharSize, value); | 3987 WRITE_BYTE_FIELD(this, kHeaderSize + index * kCharSize, value); |
4003 } | 3988 } |
4004 | 3989 |
4005 void ByteArray::copy_in(int index, const byte* buffer, int length) { | 3990 void ByteArray::copy_in(int index, const byte* buffer, int length) { |
4006 DCHECK(index >= 0 && length >= 0 && index + length >= index && | 3991 DCHECK(index >= 0 && length >= 0 && index + length >= index && |
4007 index + length <= this->length()); | 3992 index + length <= this->length()); |
4008 byte* dst_addr = FIELD_ADDR(this, kHeaderSize + index * kCharSize); | 3993 byte* dst_addr = FIELD_ADDR(this, kHeaderSize + index * kCharSize); |
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8038 #undef WRITE_INT64_FIELD | 8023 #undef WRITE_INT64_FIELD |
8039 #undef READ_BYTE_FIELD | 8024 #undef READ_BYTE_FIELD |
8040 #undef WRITE_BYTE_FIELD | 8025 #undef WRITE_BYTE_FIELD |
8041 #undef NOBARRIER_READ_BYTE_FIELD | 8026 #undef NOBARRIER_READ_BYTE_FIELD |
8042 #undef NOBARRIER_WRITE_BYTE_FIELD | 8027 #undef NOBARRIER_WRITE_BYTE_FIELD |
8043 | 8028 |
8044 } // namespace internal | 8029 } // namespace internal |
8045 } // namespace v8 | 8030 } // namespace v8 |
8046 | 8031 |
8047 #endif // V8_OBJECTS_INL_H_ | 8032 #endif // V8_OBJECTS_INL_H_ |
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