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mirror of synced 2024-11-19 05:17:12 +01:00
ImHex/include/lang/evaluator.hpp

61 lines
2.1 KiB
C++

#pragma once
#include <hex.hpp>
#include "providers/provider.hpp"
#include "lang/pattern_data.hpp"
#include "ast_node.hpp"
#include <bit>
#include <string>
#include <unordered_map>
#include <vector>
namespace hex::lang {
class Evaluator {
public:
Evaluator(prv::Provider* &provider, std::endian defaultDataEndian);
std::optional<std::vector<PatternData*>> evaluate(const std::vector<ASTNode*>& ast);
const std::pair<u32, std::string>& getError() { return this->m_error; }
private:
std::map<std::string, ASTNode*> m_types;
prv::Provider* &m_provider;
std::endian m_defaultDataEndian;
u64 m_currOffset = 0;
std::optional<std::endian> m_currEndian;
std::vector<std::vector<PatternData*>*> m_currMembers;
std::pair<u32, std::string> m_error;
using EvaluateError = std::pair<u32, std::string>;
[[noreturn]] static void throwEvaluateError(std::string_view error, u32 lineNumber) {
throw EvaluateError(lineNumber, "Evaluator: " + std::string(error));
}
[[nodiscard]] std::endian getCurrentEndian() const {
return this->m_currEndian.value_or(this->m_defaultDataEndian);
}
ASTNodeIntegerLiteral* evaluateScopeResolution(ASTNodeScopeResolution *node);
ASTNodeIntegerLiteral* evaluateRValue(ASTNodeRValue *node);
ASTNodeIntegerLiteral* evaluateOperator(ASTNodeIntegerLiteral *left, ASTNodeIntegerLiteral *right, Token::Operator op);
ASTNodeIntegerLiteral* evaluateMathematicalExpression(ASTNodeNumericExpression *node);
PatternData* evaluateBuiltinType(ASTNodeBuiltinType *node);
PatternData* evaluateStruct(ASTNodeStruct *node);
PatternData* evaluateUnion(ASTNodeUnion *node);
PatternData* evaluateEnum(ASTNodeEnum *node);
PatternData* evaluateBitfield(ASTNodeBitfield *node);
PatternData* evaluateType(ASTNodeTypeDecl *node);
PatternData* evaluateVariable(ASTNodeVariableDecl *node);
PatternData* evaluateArray(ASTNodeArrayVariableDecl *node);
PatternData* evaluatePointer(ASTNodePointerVariableDecl *node);
};
}