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mirror of synced 2024-11-15 03:27:40 +01:00
ImHex/lib/libimhex/include/hex/pattern_language/preprocessor.hpp

40 lines
1.1 KiB
C++

#pragma once
#include <hex.hpp>
#include <functional>
#include <optional>
#include <set>
#include <string>
#include <unordered_map>
#include <utility>
namespace hex::pl {
class Preprocessor {
public:
Preprocessor();
std::optional<std::string> preprocess(const std::string &code, bool initialRun = true);
void addPragmaHandler(const std::string &pragmaType, const std::function<bool(const std::string &)> &function);
void addDefaultPragmaHandlers();
const std::pair<u32, std::string> &getError() { return this->m_error; }
private:
using PreprocessorError = std::pair<u32, std::string>;
[[noreturn]] void throwPreprocessorError(const std::string &error, u32 lineNumber) const {
throw PreprocessorError(lineNumber, "Preprocessor: " + error);
}
std::unordered_map<std::string, std::function<bool(std::string)>> m_pragmaHandlers;
std::set<std::tuple<std::string, std::string, u32>> m_defines;
std::set<std::tuple<std::string, std::string, u32>> m_pragmas;
std::pair<u32, std::string> m_error;
};
}