mirrored from https://chromium.googlesource.com/v8/v8.git
/
source-positions.cc
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/
source-positions.cc
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// Copyright 2018 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/torque/source-positions.h"
#include <fstream>
#include "src/torque/utils.h"
namespace v8 {
namespace internal {
namespace torque {
DEFINE_CONTEXTUAL_VARIABLE(CurrentSourceFile)
DEFINE_CONTEXTUAL_VARIABLE(CurrentSourcePosition)
DEFINE_CONTEXTUAL_VARIABLE(SourceFileMap)
// static
const std::string& SourceFileMap::PathFromV8Root(SourceId file) {
CHECK(file.IsValid());
return Get().sources_[file.id_];
}
// static
std::string SourceFileMap::AbsolutePath(SourceId file) {
const std::string& root_path = PathFromV8Root(file);
if (StringStartsWith(root_path, "file://")) return root_path;
return Get().v8_root_ + "/" + PathFromV8Root(file);
}
// static
std::string SourceFileMap::PathFromV8RootWithoutExtension(SourceId file) {
std::string path_from_root = PathFromV8Root(file);
if (!StringEndsWith(path_from_root, ".tq")) {
Error("Not a .tq file: ", path_from_root).Throw();
}
path_from_root.resize(path_from_root.size() - strlen(".tq"));
return path_from_root;
}
// static
SourceId SourceFileMap::AddSource(std::string path) {
Get().sources_.push_back(std::move(path));
return SourceId(static_cast<int>(Get().sources_.size()) - 1);
}
// static
SourceId SourceFileMap::GetSourceId(const std::string& path) {
for (size_t i = 0; i < Get().sources_.size(); ++i) {
if (Get().sources_[i] == path) {
return SourceId(static_cast<int>(i));
}
}
return SourceId::Invalid();
}
// static
std::vector<SourceId> SourceFileMap::AllSources() {
SourceFileMap& self = Get();
std::vector<SourceId> result;
for (int i = 0; i < static_cast<int>(self.sources_.size()); ++i) {
result.push_back(SourceId(i));
}
return result;
}
// static
bool SourceFileMap::FileRelativeToV8RootExists(const std::string& path) {
const std::string file = Get().v8_root_ + "/" + path;
std::ifstream stream(file);
return stream.good();
}
} // namespace torque
} // namespace internal
} // namespace v8