1// Copyright (c) 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include "tools/gn/location.h" 6 7#include "base/logging.h" 8#include "base/strings/string_number_conversions.h" 9#include "tools/gn/input_file.h" 10 11Location::Location() 12 : file_(NULL), 13 line_number_(-1), 14 char_offset_(-1) { 15} 16 17Location::Location(const InputFile* file, 18 int line_number, 19 int char_offset, 20 int byte) 21 : file_(file), 22 line_number_(line_number), 23 char_offset_(char_offset), 24 byte_(byte) { 25} 26 27bool Location::operator==(const Location& other) const { 28 return other.file_ == file_ && 29 other.line_number_ == line_number_ && 30 other.char_offset_ == char_offset_; 31} 32 33bool Location::operator!=(const Location& other) const { 34 return !operator==(other); 35} 36 37bool Location::operator<(const Location& other) const { 38 DCHECK(file_ == other.file_); 39 if (line_number_ != other.line_number_) 40 return line_number_ < other.line_number_; 41 return char_offset_ < other.char_offset_; 42} 43 44std::string Location::Describe(bool include_char_offset) const { 45 if (!file_) 46 return std::string(); 47 48 std::string ret; 49 if (file_->friendly_name().empty()) 50 ret = file_->name().value(); 51 else 52 ret = file_->friendly_name(); 53 54 ret += ":"; 55 ret += base::IntToString(line_number_); 56 if (include_char_offset) { 57 ret += ":"; 58 ret += base::IntToString(char_offset_); 59 } 60 return ret; 61} 62 63LocationRange::LocationRange() { 64} 65 66LocationRange::LocationRange(const Location& begin, const Location& end) 67 : begin_(begin), 68 end_(end) { 69 DCHECK(begin_.file() == end_.file()); 70} 71 72LocationRange LocationRange::Union(const LocationRange& other) const { 73 DCHECK(begin_.file() == other.begin_.file()); 74 return LocationRange( 75 begin_ < other.begin_ ? begin_ : other.begin_, 76 end_ < other.end_ ? other.end_ : end_); 77} 78