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mirror of synced 2024-12-15 17:21:16 +01:00
ImHex/lib/libimhex/include/hex/pattern_language/preprocessor.hpp

51 lines
1.4 KiB
C++

#pragma once
#include <hex.hpp>
#include <functional>
#include <optional>
#include <set>
#include <string>
#include <unordered_map>
#include <utility>
#include <hex/helpers/paths.hpp>
#include <hex/pattern_language/error.hpp>
namespace hex::pl {
class Preprocessor {
public:
Preprocessor() = default;
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 removePragmaHandler(const std::string &pragmaType);
void addDefaultPragmaHandlers();
const std::optional<PatternLanguageError> &getError() { return this->m_error; }
bool shouldOnlyIncludeOnce() {
return this->m_onlyIncludeOnce;
}
private:
[[noreturn]] static void throwPreprocessorError(const std::string &error, u32 lineNumber) {
throw PatternLanguageError(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::set<fs::path> m_onceIncludedFiles;
std::optional<PatternLanguageError> m_error;
bool m_onlyIncludeOnce = false;
};
}