| // |
| // Copyright (c) 2011 The ANGLE Project 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 COMPILER_PREPROCESSOR_INPUT_H_ |
| #define COMPILER_PREPROCESSOR_INPUT_H_ |
| |
| #include <cstddef> |
| #include <vector> |
| |
| namespace pp |
| { |
| |
| // Holds and reads input for Lexer. |
| class Input |
| { |
| public: |
| Input(); |
| ~Input(); |
| Input(size_t count, const char *const string[], const int length[]); |
| |
| size_t count() const { return mCount; } |
| const char *string(size_t index) const { return mString[index]; } |
| size_t length(size_t index) const { return mLength[index]; } |
| |
| size_t read(char *buf, size_t maxSize, int *lineNo); |
| |
| struct Location |
| { |
| size_t sIndex; // String index; |
| size_t cIndex; // Char index. |
| |
| Location() : sIndex(0), cIndex(0) {} |
| }; |
| const Location &readLoc() const { return mReadLoc; } |
| |
| private: |
| // Skip a character and return the next character after the one that was skipped. |
| // Return nullptr if data runs out. |
| const char *skipChar(); |
| |
| // Input. |
| size_t mCount; |
| const char *const *mString; |
| std::vector<size_t> mLength; |
| |
| Location mReadLoc; |
| }; |
| |
| } // namespace pp |
| |
| #endif // COMPILER_PREPROCESSOR_INPUT_H_ |