// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "src/source-position.h"
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#include "src/objects-inl.h"
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#include "src/optimized-compilation-info.h"
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namespace v8 {
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namespace internal {
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std::ostream& operator<<(std::ostream& out, const SourcePositionInfo& pos) {
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out << "<";
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if (!pos.script.is_null() && pos.script->name()->IsString()) {
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out << String::cast(pos.script->name())->ToCString(DISALLOW_NULLS).get();
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} else {
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out << "unknown";
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}
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out << ":" << pos.line + 1 << ":" << pos.column + 1 << ">";
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return out;
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}
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std::ostream& operator<<(std::ostream& out,
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const std::vector<SourcePositionInfo>& stack) {
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bool first = true;
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for (const SourcePositionInfo& pos : stack) {
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if (!first) out << " inlined at ";
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out << pos;
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first = false;
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}
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return out;
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}
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std::ostream& operator<<(std::ostream& out, const SourcePosition& pos) {
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if (pos.isInlined()) {
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out << "<inlined(" << pos.InliningId() << "):";
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} else {
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out << "<not inlined:";
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}
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out << pos.ScriptOffset() << ">";
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return out;
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}
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std::vector<SourcePositionInfo> SourcePosition::InliningStack(
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OptimizedCompilationInfo* cinfo) const {
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SourcePosition pos = *this;
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std::vector<SourcePositionInfo> stack;
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while (pos.isInlined()) {
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const auto& inl = cinfo->inlined_functions()[pos.InliningId()];
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stack.push_back(SourcePositionInfo(pos, inl.shared_info));
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pos = inl.position.position;
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}
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stack.push_back(SourcePositionInfo(pos, cinfo->shared_info()));
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return stack;
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}
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std::vector<SourcePositionInfo> SourcePosition::InliningStack(
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Handle<Code> code) const {
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Isolate* isolate = code->GetIsolate();
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Handle<DeoptimizationData> deopt_data(
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DeoptimizationData::cast(code->deoptimization_data()), isolate);
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SourcePosition pos = *this;
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std::vector<SourcePositionInfo> stack;
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while (pos.isInlined()) {
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InliningPosition inl =
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deopt_data->InliningPositions()->get(pos.InliningId());
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Handle<SharedFunctionInfo> function(
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deopt_data->GetInlinedFunction(inl.inlined_function_id), isolate);
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stack.push_back(SourcePositionInfo(pos, function));
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pos = inl.position;
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}
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Handle<SharedFunctionInfo> function(
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SharedFunctionInfo::cast(deopt_data->SharedFunctionInfo()), isolate);
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stack.push_back(SourcePositionInfo(pos, function));
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return stack;
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}
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void SourcePosition::Print(std::ostream& out,
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SharedFunctionInfo* function) const {
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Script::PositionInfo pos;
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Object* source_name = nullptr;
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if (function->script()->IsScript()) {
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Script* script = Script::cast(function->script());
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source_name = script->name();
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script->GetPositionInfo(ScriptOffset(), &pos, Script::WITH_OFFSET);
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}
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out << "<";
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if (source_name != nullptr && source_name->IsString()) {
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out << String::cast(source_name)
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->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL)
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.get();
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} else {
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out << "unknown";
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}
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out << ":" << pos.line + 1 << ":" << pos.column + 1 << ">";
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}
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void SourcePosition::PrintJson(std::ostream& out) const {
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out << "{ \"scriptOffset\" : " << ScriptOffset() << ", "
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<< " \"inliningId\" : " << InliningId() << "}";
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}
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void SourcePosition::Print(std::ostream& out, Code* code) const {
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DeoptimizationData* deopt_data =
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DeoptimizationData::cast(code->deoptimization_data());
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if (!isInlined()) {
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SharedFunctionInfo* function(
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SharedFunctionInfo::cast(deopt_data->SharedFunctionInfo()));
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Print(out, function);
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} else {
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InliningPosition inl = deopt_data->InliningPositions()->get(InliningId());
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if (inl.inlined_function_id == -1) {
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out << *this;
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} else {
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SharedFunctionInfo* function =
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deopt_data->GetInlinedFunction(inl.inlined_function_id);
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Print(out, function);
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}
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out << " inlined at ";
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inl.position.Print(out, code);
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}
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}
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SourcePositionInfo::SourcePositionInfo(SourcePosition pos,
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Handle<SharedFunctionInfo> f)
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: position(pos),
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script(f.is_null() || !f->script()->IsScript()
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? Handle<Script>::null()
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: handle(Script::cast(f->script()), f->GetIsolate())) {
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if (!script.is_null()) {
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Script::PositionInfo info;
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if (Script::GetPositionInfo(script, pos.ScriptOffset(), &info,
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Script::WITH_OFFSET)) {
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line = info.line;
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column = info.column;
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}
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}
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}
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} // namespace internal
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} // namespace v8
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