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.
5 #ifndef TOOLS_GN_LOCATION_H_
6 #define TOOLS_GN_LOCATION_H_
12 // Represents a place in a source file. Used for error reporting.
16 Location(const InputFile* file, int line_number, int char_offset);
18 const InputFile* file() const { return file_; }
19 int line_number() const { return line_number_; }
20 int char_offset() const { return char_offset_; }
22 bool operator==(const Location& other) const;
23 bool operator!=(const Location& other) const;
24 bool operator<(const Location& other) const;
26 // Returns a string with the file, line, and (optionally) the character
27 // offset for this location. If this location is null, returns an empty
29 std::string Describe(bool include_char_offset) const;
32 const InputFile* file_; // Null when unset.
33 int line_number_; // -1 when unset.
34 int char_offset_; // -1 when unset.
37 // Represents a range in a source file. Used for error reporting.
38 // The end is exclusive i.e. [begin, end)
42 LocationRange(const Location& begin, const Location& end);
44 const Location& begin() const { return begin_; }
45 const Location& end() const { return end_; }
47 LocationRange Union(const LocationRange& other) const;
54 #endif // TOOLS_GN_LOCATION_H_