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| 1 // Copyright 2016 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "src/source-position.h" |
| 6 #include "src/compilation-info.h" |
| 7 #include "src/objects-inl.h" |
| 8 |
| 9 namespace v8 { |
| 10 namespace internal { |
| 11 |
| 12 std::ostream& operator<<(std::ostream& out, const SourcePositionInfo& pos) { |
| 13 Handle<SharedFunctionInfo> function; |
| 14 if (pos.function.ToHandle(&function)) { |
| 15 Handle<Script> script(Script::cast(function->script())); |
| 16 out << "<"; |
| 17 if (script->name()->IsString()) { |
| 18 out << String::cast(script->name())->ToCString(DISALLOW_NULLS).get(); |
| 19 } else { |
| 20 out << "unknown"; |
| 21 } |
| 22 out << ":" << pos.line + 1 << ":" << pos.column + 1 << ">"; |
| 23 } else { |
| 24 out << "<unknown:" << pos.position.ScriptOffset() << ">"; |
| 25 } |
| 26 return out; |
| 27 } |
| 28 |
| 29 std::ostream& operator<<(std::ostream& out, |
| 30 const std::vector<SourcePositionInfo>& stack) { |
| 31 out << stack.back(); |
| 32 for (int i = static_cast<int>(stack.size()) - 2; i >= 0; --i) { |
| 33 out << " inlined at "; |
| 34 out << stack[i]; |
| 35 } |
| 36 return out; |
| 37 } |
| 38 |
| 39 std::ostream& operator<<(std::ostream& out, const SourcePosition& pos) { |
| 40 if (pos.isInlined()) { |
| 41 out << "<inlined(" << pos.InliningId() << "):"; |
| 42 } else { |
| 43 out << "<not inlined:"; |
| 44 } |
| 45 out << pos.ScriptOffset() << ">"; |
| 46 return out; |
| 47 } |
| 48 |
| 49 SourcePositionInfo SourcePosition::Info( |
| 50 Handle<SharedFunctionInfo> function) const { |
| 51 Handle<Script> script(Script::cast(function->script())); |
| 52 SourcePositionInfo result(*this); |
| 53 Script::PositionInfo pos; |
| 54 if (Script::GetPositionInfo(script, ScriptOffset(), &pos, |
| 55 Script::WITH_OFFSET)) { |
| 56 result.line = pos.line; |
| 57 result.column = pos.column; |
| 58 } |
| 59 result.function = function; |
| 60 return result; |
| 61 } |
| 62 |
| 63 std::vector<SourcePositionInfo> SourcePosition::InliningStack( |
| 64 CompilationInfo* cinfo) const { |
| 65 if (!isInlined()) { |
| 66 return std::vector<SourcePositionInfo>{Info(cinfo->shared_info())}; |
| 67 } else { |
| 68 InliningPosition inl = cinfo->inlined_functions()[InliningId()].position; |
| 69 std::vector<SourcePositionInfo> stack = inl.position.InliningStack(cinfo); |
| 70 stack.push_back(Info(cinfo->inlined_functions()[InliningId()].shared_info)); |
| 71 return stack; |
| 72 } |
| 73 } |
| 74 |
| 75 std::vector<SourcePositionInfo> SourcePosition::InliningStack( |
| 76 Handle<Code> code) const { |
| 77 Handle<DeoptimizationInputData> deopt_data( |
| 78 DeoptimizationInputData::cast(code->deoptimization_data())); |
| 79 if (!isInlined()) { |
| 80 Handle<SharedFunctionInfo> function( |
| 81 SharedFunctionInfo::cast(deopt_data->SharedFunctionInfo())); |
| 82 |
| 83 return std::vector<SourcePositionInfo>{Info(function)}; |
| 84 } else { |
| 85 InliningPosition inl = deopt_data->InliningPositions()->get(InliningId()); |
| 86 std::vector<SourcePositionInfo> stack = inl.position.InliningStack(code); |
| 87 if (inl.inlined_function_id == -1) { |
| 88 stack.push_back(SourcePositionInfo(*this)); |
| 89 } else { |
| 90 Handle<SharedFunctionInfo> function(SharedFunctionInfo::cast( |
| 91 deopt_data->LiteralArray()->get(inl.inlined_function_id))); |
| 92 stack.push_back(Info(function)); |
| 93 } |
| 94 return stack; |
| 95 } |
| 96 } |
| 97 |
| 98 void SourcePosition::Print(std::ostream& out, |
| 99 SharedFunctionInfo* function) const { |
| 100 Script* script = Script::cast(function->script()); |
| 101 Object* source_name = script->name(); |
| 102 Script::PositionInfo pos; |
| 103 script->GetPositionInfo(ScriptOffset(), &pos, Script::WITH_OFFSET); |
| 104 out << "<"; |
| 105 if (source_name->IsString()) { |
| 106 out << String::cast(source_name) |
| 107 ->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL) |
| 108 .get(); |
| 109 } else { |
| 110 out << "unknown"; |
| 111 } |
| 112 out << ":" << pos.line + 1 << ":" << pos.column + 1 << ">"; |
| 113 } |
| 114 |
| 115 void SourcePosition::Print(std::ostream& out, Code* code) const { |
| 116 DeoptimizationInputData* deopt_data = |
| 117 DeoptimizationInputData::cast(code->deoptimization_data()); |
| 118 if (!isInlined()) { |
| 119 SharedFunctionInfo* function( |
| 120 SharedFunctionInfo::cast(deopt_data->SharedFunctionInfo())); |
| 121 Print(out, function); |
| 122 } else { |
| 123 InliningPosition inl = deopt_data->InliningPositions()->get(InliningId()); |
| 124 if (inl.inlined_function_id == -1) { |
| 125 out << *this; |
| 126 } else { |
| 127 SharedFunctionInfo* function = SharedFunctionInfo::cast( |
| 128 deopt_data->LiteralArray()->get(inl.inlined_function_id)); |
| 129 Print(out, function); |
| 130 } |
| 131 out << " inlined at "; |
| 132 inl.position.Print(out, code); |
| 133 } |
| 134 } |
| 135 |
| 136 } // namespace internal |
| 137 } // namespace v8 |
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