OLD | NEW |
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_INTERPRETER_BYTECODE_LABEL_H_ | 5 #ifndef V8_INTERPRETER_BYTECODE_LABEL_H_ |
6 #define V8_INTERPRETER_BYTECODE_LABEL_H_ | 6 #define V8_INTERPRETER_BYTECODE_LABEL_H_ |
7 | 7 |
8 #include "src/zone-containers.h" | 8 #include "src/zone-containers.h" |
9 | 9 |
10 namespace v8 { | 10 namespace v8 { |
(...skipping 44 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
55 | 55 |
56 // Class representing a branch target of multiple jumps. | 56 // Class representing a branch target of multiple jumps. |
57 class BytecodeLabels { | 57 class BytecodeLabels { |
58 public: | 58 public: |
59 explicit BytecodeLabels(Zone* zone) : labels_(zone) {} | 59 explicit BytecodeLabels(Zone* zone) : labels_(zone) {} |
60 | 60 |
61 BytecodeLabel* New(); | 61 BytecodeLabel* New(); |
62 | 62 |
63 void Bind(BytecodeArrayBuilder* builder); | 63 void Bind(BytecodeArrayBuilder* builder); |
64 | 64 |
| 65 void BindToLabel(BytecodeArrayBuilder* builder, const BytecodeLabel& target); |
| 66 |
| 67 bool is_bound() const { |
| 68 bool is_bound = !labels_.empty() && labels_.at(0).is_bound(); |
| 69 DCHECK(!is_bound || |
| 70 std::all_of(labels_.begin(), labels_.end(), |
| 71 [](const BytecodeLabel& l) { return l.is_bound(); })); |
| 72 return is_bound; |
| 73 } |
| 74 |
| 75 bool empty() const { return labels_.empty(); } |
| 76 |
65 private: | 77 private: |
66 ZoneVector<BytecodeLabel> labels_; | 78 ZoneVector<BytecodeLabel> labels_; |
67 | 79 |
68 DISALLOW_COPY_AND_ASSIGN(BytecodeLabels); | 80 DISALLOW_COPY_AND_ASSIGN(BytecodeLabels); |
69 }; | 81 }; |
70 | 82 |
71 } // namespace interpreter | 83 } // namespace interpreter |
72 } // namespace internal | 84 } // namespace internal |
73 } // namespace v8 | 85 } // namespace v8 |
74 | 86 |
75 #endif // V8_INTERPRETER_BYTECODE_LABEL_H_ | 87 #endif // V8_INTERPRETER_BYTECODE_LABEL_H_ |
OLD | NEW |