45 lines
1.8 KiB
C++

#pragma once
#include <unordered_map>
#include <stack>
#include "AbstractDirectiveStreamProxy.h"
#include "Parsing/IParserLineStream.h"
class DefinesStreamProxy final : public AbstractDirectiveStreamProxy
{
static constexpr const char* DEFINE_DIRECTIVE = "define ";
static constexpr const char* UNDEF_DIRECTIVE = "undef ";
static constexpr const char* IFDEF_DIRECTIVE = "ifdef ";
static constexpr const char* IFNDEF_DIRECTIVE = "ifndef ";
static constexpr const char* ELSE_DIRECTIVE = "else";
static constexpr const char* ENDIF_DIRECTIVE = "endif";
IParserLineStream* const m_stream;
std::unordered_map<std::string, std::string> m_defines;
std::stack<bool> m_modes;
unsigned m_ignore_depth;
_NODISCARD bool MatchDefineDirective(const ParserLine& line, unsigned directivePosition);
_NODISCARD bool MatchUndefDirective(const ParserLine& line, unsigned directivePosition);
_NODISCARD bool MatchIfdefDirective(const ParserLine& line, unsigned directivePosition);
_NODISCARD bool MatchElseDirective(const ParserLine& line, unsigned directivePosition);
_NODISCARD bool MatchEndifDirective(const ParserLine& line, unsigned directivePosition);
_NODISCARD bool MatchDirectives(const ParserLine& line);
bool FindDefineForWord(const ParserLine& line, unsigned wordStart, unsigned wordEnd, std::string& value);
void ExpandDefines(ParserLine& line);
public:
explicit DefinesStreamProxy(IParserLineStream* stream);
void AddDefine(const std::string& name, std::string value);
void Undefine(const std::string& name);
ParserLine NextLine() override;
bool IncludeFile(const std::string& filename) override;
void PopCurrentFile() override;
_NODISCARD bool IsOpen() const override;
_NODISCARD bool Eof() const override;
};