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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #include "vm/code_descriptors.h" | 5 #include "vm/code_descriptors.h" |
| 6 | 6 |
| 7 namespace dart { | 7 namespace dart { |
| 8 | 8 |
| 9 void DescriptorList::AddDescriptor(RawPcDescriptors::Kind kind, | 9 void DescriptorList::AddDescriptor(RawPcDescriptors::Kind kind, |
| 10 intptr_t pc_offset, | 10 intptr_t pc_offset, |
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| 34 | 34 |
| 35 | 35 |
| 36 RawPcDescriptors* DescriptorList::FinalizePcDescriptors(uword entry_point) { | 36 RawPcDescriptors* DescriptorList::FinalizePcDescriptors(uword entry_point) { |
| 37 if (encoded_data_.length() == 0) { | 37 if (encoded_data_.length() == 0) { |
| 38 return Object::empty_descriptors().raw(); | 38 return Object::empty_descriptors().raw(); |
| 39 } | 39 } |
| 40 return PcDescriptors::New(&encoded_data_); | 40 return PcDescriptors::New(&encoded_data_); |
| 41 } | 41 } |
| 42 | 42 |
| 43 | 43 |
| 44 | |
| 45 void CodeSourceMapBuilder::AddEntry(intptr_t pc_offset, | 44 void CodeSourceMapBuilder::AddEntry(intptr_t pc_offset, |
| 46 TokenPosition token_pos) { | 45 TokenPosition token_pos) { |
| 47 // Require pc offset to monotonically increase. | 46 // Require pc offset to monotonically increase. |
| 48 ASSERT((prev_pc_offset < pc_offset) || | 47 ASSERT((prev_pc_offset < pc_offset) || |
| 49 ((prev_pc_offset == 0) && (pc_offset == 0))); | 48 ((prev_pc_offset == 0) && (pc_offset == 0))); |
| 50 CodeSourceMap::EncodeInteger(&encoded_data_, pc_offset - prev_pc_offset); | 49 CodeSourceMap::EncodeInteger(&encoded_data_, pc_offset - prev_pc_offset); |
| 51 CodeSourceMap::EncodeInteger(&encoded_data_, | 50 CodeSourceMap::EncodeInteger(&encoded_data_, |
| 52 token_pos.value() - prev_token_pos); | 51 token_pos.value() - prev_token_pos); |
| 53 | 52 |
| 54 prev_pc_offset = pc_offset; | 53 prev_pc_offset = pc_offset; |
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| 112 ExceptionHandlers::Handle(ExceptionHandlers::New(num_handlers)); | 111 ExceptionHandlers::Handle(ExceptionHandlers::New(num_handlers)); |
| 113 for (intptr_t i = 0; i < num_handlers; i++) { | 112 for (intptr_t i = 0; i < num_handlers; i++) { |
| 114 // Assert that every element in the array has been initialized. | 113 // Assert that every element in the array has been initialized. |
| 115 if (list_[i].handler_types == NULL) { | 114 if (list_[i].handler_types == NULL) { |
| 116 // Unreachable handler, entry not computed. | 115 // Unreachable handler, entry not computed. |
| 117 // Initialize it to some meaningful value. | 116 // Initialize it to some meaningful value. |
| 118 const bool has_catch_all = false; | 117 const bool has_catch_all = false; |
| 119 // Check it is uninitialized. | 118 // Check it is uninitialized. |
| 120 ASSERT((list_[i].outer_try_index == -1) && | 119 ASSERT((list_[i].outer_try_index == -1) && |
| 121 (list_[i].pc_offset == ExceptionHandlers::kInvalidPcOffset)); | 120 (list_[i].pc_offset == ExceptionHandlers::kInvalidPcOffset)); |
| 122 handlers.SetHandlerInfo(i, | 121 handlers.SetHandlerInfo(i, list_[i].outer_try_index, list_[i].pc_offset, |
| 123 list_[i].outer_try_index, | 122 list_[i].needs_stacktrace, has_catch_all); |
| 124 list_[i].pc_offset, | |
| 125 list_[i].needs_stacktrace, | |
| 126 has_catch_all); | |
| 127 handlers.SetHandledTypes(i, Array::empty_array()); | 123 handlers.SetHandledTypes(i, Array::empty_array()); |
| 128 } else { | 124 } else { |
| 129 const bool has_catch_all = ContainsDynamic(*list_[i].handler_types); | 125 const bool has_catch_all = ContainsDynamic(*list_[i].handler_types); |
| 130 handlers.SetHandlerInfo(i, | 126 handlers.SetHandlerInfo(i, list_[i].outer_try_index, list_[i].pc_offset, |
| 131 list_[i].outer_try_index, | 127 list_[i].needs_stacktrace, has_catch_all); |
| 132 list_[i].pc_offset, | |
| 133 list_[i].needs_stacktrace, | |
| 134 has_catch_all); | |
| 135 handlers.SetHandledTypes(i, *list_[i].handler_types); | 128 handlers.SetHandledTypes(i, *list_[i].handler_types); |
| 136 } | 129 } |
| 137 } | 130 } |
| 138 return handlers.raw(); | 131 return handlers.raw(); |
| 139 } | 132 } |
| 140 | 133 |
| 141 | 134 |
| 142 } // namespace dart | 135 } // namespace dart |
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