85 lines
2.1 KiB
C++
85 lines
2.1 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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*/
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#pragma once
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#include <QtCore/QString>
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#include "codegen/common/clean_file.h"
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namespace codegen {
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namespace common {
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// Wrapper allows you to read forward the CleanFile without overflow checks.
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class CleanFileReader {
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public:
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explicit CleanFileReader(const QString &filepath) : file_(filepath) {
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}
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explicit CleanFileReader(const QByteArray &content, const QString &filepath = QString()) : file_(content, filepath) {
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}
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bool read() {
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if (!file_.read()) {
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return false;
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}
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pos_ = file_.data();
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end_ = file_.end();
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return true;
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}
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bool atEnd() const {
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return (pos_ == end_);
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}
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char currentChar() const {
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return atEnd() ? 0 : *pos_;
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}
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bool skipChar() {
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if (atEnd()) {
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return false;
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}
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++pos_;
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return true;
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}
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const char *currentPtr() const {
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return pos_;
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}
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int charsLeft() const {
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return (end_ - pos_);
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}
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QVector<QByteArray> singleLineComments() const {
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return file_.singleLineComments();
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}
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// Log error to std::cerr with 'code' at line number 'line' in data().
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LogStream logError(int code, int line) const {
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return std::forward<LogStream>(file_.logError(code, line));
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}
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private:
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CleanFile file_;
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const char *pos_ = nullptr;
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const char *end_ = nullptr;
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};
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} // namespace common
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} // namespace codegen
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