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