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// Copyright (c) 2013 The Chromium 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 "tools/gn/location.h"
#include "base/logging.h"
#include "base/strings/string_number_conversions.h"
#include "tools/gn/input_file.h"
Location::Location()
: file_(NULL),
line_number_(-1),
char_offset_(-1) {
}
Location::Location(const InputFile* file, int line_number, int char_offset)
: file_(file),
line_number_(line_number),
char_offset_(char_offset) {
}
bool Location::operator==(const Location& other) const {
return other.file_ == file_ &&
other.line_number_ == line_number_ &&
other.char_offset_ == char_offset_;
}
bool Location::operator!=(const Location& other) const {
return !operator==(other);
}
bool Location::operator<(const Location& other) const {
DCHECK(file_ == other.file_);
if (line_number_ != other.line_number_)
return line_number_ < other.line_number_;
return char_offset_ < other.char_offset_;
}
std::string Location::Describe(bool include_char_offset) const {
if (!file_)
return std::string();
std::string ret;
if (file_->friendly_name().empty())
ret = file_->name().value();
else
ret = file_->friendly_name();
ret += ":";
ret += base::IntToString(line_number_);
if (include_char_offset) {
ret += ":";
ret += base::IntToString(char_offset_);
}
return ret;
}
LocationRange::LocationRange() {
}
LocationRange::LocationRange(const Location& begin, const Location& end)
: begin_(begin),
end_(end) {
DCHECK(begin_.file() == end_.file());
}
LocationRange LocationRange::Union(const LocationRange& other) const {
DCHECK(begin_.file() == other.begin_.file());
return LocationRange(
begin_ < other.begin_ ? begin_ : other.begin_,
end_ < other.end_ ? other.end_ : end_);
}
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