| // 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_); |
| } |