| // 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. |
| |
| #ifndef TOOLS_GN_TOKEN_H_ |
| #define TOOLS_GN_TOKEN_H_ |
| |
| #include "base/strings/string_piece.h" |
| #include "tools/gn/location.h" |
| |
| class Token { |
| public: |
| enum Type { |
| INVALID, |
| INTEGER, // 123 |
| STRING, // "blah" |
| OPERATOR, // =, +=, -=, +, -, ==, !=, <=, >=, <, > |
| IDENTIFIER, // foo |
| SCOPER, // (, ), [, ], {, } |
| SEPARATOR, // , |
| COMMENT // #...\n |
| }; |
| |
| Token(); |
| Token(const Location& location, Type t, const base::StringPiece& v); |
| |
| Type type() const { return type_; } |
| const base::StringPiece& value() const { return value_; } |
| const Location& location() const { return location_; } |
| LocationRange range() const { |
| return LocationRange(location_, |
| Location(location_.file(), location_.line_number(), |
| location_.char_offset() + value_.size())); |
| } |
| |
| // Helper functions for comparing this token to something. |
| bool IsIdentifierEqualTo(const char* v) const; |
| bool IsOperatorEqualTo(const char* v) const; |
| bool IsScoperEqualTo(const char* v) const; |
| bool IsStringEqualTo(const char* v) const; |
| |
| // For STRING tokens, returns the string value (no quotes at end, does |
| // unescaping). |
| std::string StringValue() const; |
| |
| private: |
| Type type_; |
| base::StringPiece value_; |
| Location location_; |
| }; |
| |
| #endif // TOOLS_GN_TOKEN_H_ |