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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 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 #ifndef V8_FAST_ACCESSOR_ASSEMBLER_H_ | 5 #ifndef V8_FAST_ACCESSOR_ASSEMBLER_H_ |
6 #define V8_FAST_ACCESSOR_ASSEMBLER_H_ | 6 #define V8_FAST_ACCESSOR_ASSEMBLER_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 #include <memory> | 9 #include <memory> |
10 #include <vector> | 10 #include <vector> |
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48 typedef v8::experimental::FastAccessorBuilder::ValueId ValueId; | 48 typedef v8::experimental::FastAccessorBuilder::ValueId ValueId; |
49 typedef v8::experimental::FastAccessorBuilder::LabelId LabelId; | 49 typedef v8::experimental::FastAccessorBuilder::LabelId LabelId; |
50 typedef v8::FunctionCallback FunctionCallback; | 50 typedef v8::FunctionCallback FunctionCallback; |
51 | 51 |
52 explicit FastAccessorAssembler(Isolate* isolate); | 52 explicit FastAccessorAssembler(Isolate* isolate); |
53 ~FastAccessorAssembler(); | 53 ~FastAccessorAssembler(); |
54 | 54 |
55 // Builder / assembler functions: | 55 // Builder / assembler functions: |
56 ValueId IntegerConstant(int int_constant); | 56 ValueId IntegerConstant(int int_constant); |
57 ValueId GetReceiver(); | 57 ValueId GetReceiver(); |
58 ValueId LoadInternalField(ValueId value_id, int field_no); | 58 ValueId LoadEmbedderField(ValueId value_id, int field_no); |
59 | 59 |
60 // Loads internal field and assumes the object is indeed a valid API object | 60 // Loads embedder field and assumes the object is indeed a valid API object |
61 // with the proper internal fields present. | 61 // with the proper embedder fields present. |
62 // The intended use is to call this on an object whose structure has already | 62 // The intended use is to call this on an object whose structure has already |
63 // been checked previously, e.g. the accessor's receiver, which is map-checked | 63 // been checked previously, e.g. the accessor's receiver, which is map-checked |
64 // before the fast accessor is called on it. Using this on an arbitrary object | 64 // before the fast accessor is called on it. Using this on an arbitrary object |
65 // will result in unsafe memory accesses. | 65 // will result in unsafe memory accesses. |
66 ValueId LoadInternalFieldUnchecked(ValueId value_id, int field_no); | 66 ValueId LoadEmbedderFieldUnchecked(ValueId value_id, int field_no); |
67 | 67 |
68 ValueId LoadValue(ValueId value_id, int offset); | 68 ValueId LoadValue(ValueId value_id, int offset); |
69 ValueId LoadObject(ValueId value_id, int offset); | 69 ValueId LoadObject(ValueId value_id, int offset); |
70 | 70 |
71 // Converts a machine integer to a SMI. | 71 // Converts a machine integer to a SMI. |
72 ValueId ToSmi(ValueId value_id); | 72 ValueId ToSmi(ValueId value_id); |
73 | 73 |
74 // Builder / assembler functions for control flow. | 74 // Builder / assembler functions for control flow. |
75 void ReturnValue(ValueId value_id); | 75 void ReturnValue(ValueId value_id); |
76 void CheckFlagSetOrReturnNull(ValueId value_id, int mask); | 76 void CheckFlagSetOrReturnNull(ValueId value_id, int mask); |
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113 // strict as this class will be exposed at the API.) | 113 // strict as this class will be exposed at the API.) |
114 enum { kBuilding, kBuilt, kError } state_; | 114 enum { kBuilding, kBuilt, kError } state_; |
115 | 115 |
116 DISALLOW_COPY_AND_ASSIGN(FastAccessorAssembler); | 116 DISALLOW_COPY_AND_ASSIGN(FastAccessorAssembler); |
117 }; | 117 }; |
118 | 118 |
119 } // namespace internal | 119 } // namespace internal |
120 } // namespace v8 | 120 } // namespace v8 |
121 | 121 |
122 #endif // V8_FAST_ACCESSOR_ASSEMBLER_H_ | 122 #endif // V8_FAST_ACCESSOR_ASSEMBLER_H_ |
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