| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the tools applications of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL-EXCEPT$ |
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| ** GNU General Public License Usage |
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| ** General Public License version 3 as published by the Free Software |
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| ****************************************************************************/ |
| |
| #ifndef PARSER_H |
| #define PARSER_H |
| |
| #include "symbols.h" |
| |
| #include <stack> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class Parser |
| { |
| public: |
| Parser():index(0), displayWarnings(true), displayNotes(true) {} |
| Symbols symbols; |
| int index; |
| bool displayWarnings; |
| bool displayNotes; |
| |
| struct IncludePath |
| { |
| inline explicit IncludePath(const QByteArray &_path) |
| : path(_path), isFrameworkPath(false) {} |
| QByteArray path; |
| bool isFrameworkPath; |
| }; |
| QList<IncludePath> includes; |
| |
| std::stack<QByteArray, QByteArrayList> currentFilenames; |
| |
| inline bool hasNext() const { return (index < symbols.size()); } |
| inline Token next() { if (index >= symbols.size()) return NOTOKEN; return symbols.at(index++).token; } |
| bool test(Token); |
| void next(Token); |
| void next(Token, const char *msg); |
| inline void prev() {--index;} |
| inline Token lookup(int k = 1); |
| inline const Symbol &symbol_lookup(int k = 1) { return symbols.at(index-1+k);} |
| inline Token token() { return symbols.at(index-1).token;} |
| inline QByteArray lexem() { return symbols.at(index-1).lexem();} |
| inline QByteArray unquotedLexem() { return symbols.at(index-1).unquotedLexem();} |
| inline const Symbol &symbol() { return symbols.at(index-1);} |
| |
| Q_NORETURN void error(int rollback); |
| Q_NORETURN void error(const char *msg = nullptr); |
| void warning(const char * = nullptr); |
| void note(const char * = nullptr); |
| |
| }; |
| |
| inline bool Parser::test(Token token) |
| { |
| if (index < symbols.size() && symbols.at(index).token == token) { |
| ++index; |
| return true; |
| } |
| return false; |
| } |
| |
| inline Token Parser::lookup(int k) |
| { |
| const int l = index - 1 + k; |
| return l < symbols.size() ? symbols.at(l).token : NOTOKEN; |
| } |
| |
| inline void Parser::next(Token token) |
| { |
| if (!test(token)) |
| error(); |
| } |
| |
| inline void Parser::next(Token token, const char *msg) |
| { |
| if (!test(token)) |
| error(msg); |
| } |
| |
| QT_END_NAMESPACE |
| |
| #endif |