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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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1470 // map-word). | 1470 // map-word). |
1471 if (((type & kIsIndirectStringMask) != kIsIndirectStringTag)) | 1471 if (((type & kIsIndirectStringMask) != kIsIndirectStringTag)) |
1472 return HeapObjectContents::kRawValues; | 1472 return HeapObjectContents::kRawValues; |
1473 else | 1473 else |
1474 return HeapObjectContents::kTaggedValues; | 1474 return HeapObjectContents::kTaggedValues; |
1475 #if 0 | 1475 #if 0 |
1476 // TODO(jochen): Enable eventually. | 1476 // TODO(jochen): Enable eventually. |
1477 } else if (type == JS_FUNCTION_TYPE) { | 1477 } else if (type == JS_FUNCTION_TYPE) { |
1478 return HeapObjectContents::kMixedValues; | 1478 return HeapObjectContents::kMixedValues; |
1479 #endif | 1479 #endif |
| 1480 } else if (type == BYTECODE_ARRAY_TYPE) { |
| 1481 return HeapObjectContents::kMixedValues; |
1480 } else if (type >= FIRST_FIXED_TYPED_ARRAY_TYPE && | 1482 } else if (type >= FIRST_FIXED_TYPED_ARRAY_TYPE && |
1481 type <= LAST_FIXED_TYPED_ARRAY_TYPE) { | 1483 type <= LAST_FIXED_TYPED_ARRAY_TYPE) { |
1482 return HeapObjectContents::kMixedValues; | 1484 return HeapObjectContents::kMixedValues; |
1483 } else if (type <= LAST_DATA_TYPE) { | 1485 } else if (type <= LAST_DATA_TYPE) { |
1484 // TODO(jochen): Why do we claim that Code and Map contain only raw values? | 1486 // TODO(jochen): Why do we claim that Code and Map contain only raw values? |
1485 return HeapObjectContents::kRawValues; | 1487 return HeapObjectContents::kRawValues; |
1486 } else { | 1488 } else { |
1487 if (FLAG_unbox_double_fields) { | 1489 if (FLAG_unbox_double_fields) { |
1488 LayoutDescriptorHelper helper(map()); | 1490 LayoutDescriptorHelper helper(map()); |
1489 if (!helper.all_fields_tagged()) return HeapObjectContents::kMixedValues; | 1491 if (!helper.all_fields_tagged()) return HeapObjectContents::kMixedValues; |
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4027 | 4029 |
4028 | 4030 |
4029 int ByteArray::ByteArraySize() { return SizeFor(this->length()); } | 4031 int ByteArray::ByteArraySize() { return SizeFor(this->length()); } |
4030 | 4032 |
4031 | 4033 |
4032 Address ByteArray::GetDataStartAddress() { | 4034 Address ByteArray::GetDataStartAddress() { |
4033 return reinterpret_cast<Address>(this) - kHeapObjectTag + kHeaderSize; | 4035 return reinterpret_cast<Address>(this) - kHeapObjectTag + kHeaderSize; |
4034 } | 4036 } |
4035 | 4037 |
4036 | 4038 |
| 4039 void BytecodeArray::BytecodeArrayIterateBody(ObjectVisitor* v) { |
| 4040 IteratePointer(v, kConstantPoolOffset); |
| 4041 } |
| 4042 |
| 4043 |
4037 byte BytecodeArray::get(int index) { | 4044 byte BytecodeArray::get(int index) { |
4038 DCHECK(index >= 0 && index < this->length()); | 4045 DCHECK(index >= 0 && index < this->length()); |
4039 return READ_BYTE_FIELD(this, kHeaderSize + index * kCharSize); | 4046 return READ_BYTE_FIELD(this, kHeaderSize + index * kCharSize); |
4040 } | 4047 } |
4041 | 4048 |
4042 | 4049 |
4043 void BytecodeArray::set(int index, byte value) { | 4050 void BytecodeArray::set(int index, byte value) { |
4044 DCHECK(index >= 0 && index < this->length()); | 4051 DCHECK(index >= 0 && index < this->length()); |
4045 WRITE_BYTE_FIELD(this, kHeaderSize + index * kCharSize, value); | 4052 WRITE_BYTE_FIELD(this, kHeaderSize + index * kCharSize, value); |
4046 } | 4053 } |
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4067 } | 4074 } |
4068 | 4075 |
4069 | 4076 |
4070 int BytecodeArray::parameter_count() const { | 4077 int BytecodeArray::parameter_count() const { |
4071 // Parameter count is stored as the size on stack of the parameters to allow | 4078 // Parameter count is stored as the size on stack of the parameters to allow |
4072 // it to be used directly by generated code. | 4079 // it to be used directly by generated code. |
4073 return READ_INT_FIELD(this, kParameterSizeOffset) >> kPointerSizeLog2; | 4080 return READ_INT_FIELD(this, kParameterSizeOffset) >> kPointerSizeLog2; |
4074 } | 4081 } |
4075 | 4082 |
4076 | 4083 |
| 4084 ACCESSORS(BytecodeArray, constant_pool, FixedArray, kConstantPoolOffset) |
| 4085 |
| 4086 |
4077 Address BytecodeArray::GetFirstBytecodeAddress() { | 4087 Address BytecodeArray::GetFirstBytecodeAddress() { |
4078 return reinterpret_cast<Address>(this) - kHeapObjectTag + kHeaderSize; | 4088 return reinterpret_cast<Address>(this) - kHeapObjectTag + kHeaderSize; |
4079 } | 4089 } |
4080 | 4090 |
4081 | 4091 |
4082 int BytecodeArray::BytecodeArraySize() { return SizeFor(this->length()); } | 4092 int BytecodeArray::BytecodeArraySize() { return SizeFor(this->length()); } |
4083 | 4093 |
4084 | 4094 |
4085 ACCESSORS(FixedTypedArrayBase, base_pointer, Object, kBasePointerOffset) | 4095 ACCESSORS(FixedTypedArrayBase, base_pointer, Object, kBasePointerOffset) |
4086 | 4096 |
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7874 #undef READ_INT64_FIELD | 7884 #undef READ_INT64_FIELD |
7875 #undef WRITE_INT64_FIELD | 7885 #undef WRITE_INT64_FIELD |
7876 #undef READ_BYTE_FIELD | 7886 #undef READ_BYTE_FIELD |
7877 #undef WRITE_BYTE_FIELD | 7887 #undef WRITE_BYTE_FIELD |
7878 #undef NOBARRIER_READ_BYTE_FIELD | 7888 #undef NOBARRIER_READ_BYTE_FIELD |
7879 #undef NOBARRIER_WRITE_BYTE_FIELD | 7889 #undef NOBARRIER_WRITE_BYTE_FIELD |
7880 | 7890 |
7881 } } // namespace v8::internal | 7891 } } // namespace v8::internal |
7882 | 7892 |
7883 #endif // V8_OBJECTS_INL_H_ | 7893 #endif // V8_OBJECTS_INL_H_ |
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