mirror of https://github.com/WerWolv/ImHex.git
107 lines
3.9 KiB
C++
107 lines
3.9 KiB
C++
#pragma once
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#include <hex.hpp>
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#include <hex/providers/provider.hpp>
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#include <hex/helpers/utils.hpp>
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#include <hex/lang/pattern_data.hpp>
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#include <hex/lang/ast_node.hpp>
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#include <bit>
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#include <string>
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#include <unordered_map>
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#include <vector>
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namespace hex::lang {
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class Evaluator {
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public:
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enum ConsoleLogLevel {
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Debug,
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Info,
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Warning,
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Error
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};
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Evaluator(prv::Provider* &provider, std::endian defaultDataEndian);
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std::optional<std::vector<PatternData*>> evaluate(const std::vector<ASTNode*>& ast);
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const auto& getConsoleLog() { return this->m_consoleLog; }
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private:
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std::map<std::string, ASTNode*> m_types;
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prv::Provider* &m_provider;
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std::endian m_defaultDataEndian;
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u64 m_currOffset = 0;
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std::vector<std::endian> m_endianStack;
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std::vector<PatternData*> m_globalMembers;
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std::vector<std::vector<PatternData*>*> m_currMembers;
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std::vector<std::pair<ConsoleLogLevel, std::string>> m_consoleLog;
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using EvaluateError = std::string;
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void emmitDebugInfo(std::string_view message) {
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this->m_consoleLog.emplace_back(ConsoleLogLevel::Debug, "[-] " + std::string(message));
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}
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void emmitInfo(std::string_view message) {
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this->m_consoleLog.emplace_back(ConsoleLogLevel::Info, "[i] " + std::string(message));
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}
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void emmitWaring(std::string_view message) {
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this->m_consoleLog.emplace_back(ConsoleLogLevel::Warning, "[*] " + std::string(message));
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}
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[[noreturn]] static void throwEvaluateError(std::string_view message) {
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throw EvaluateError("[!] " + std::string(message));
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}
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[[nodiscard]] std::endian getCurrentEndian() const {
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return this->m_endianStack.back();
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}
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ASTNodeIntegerLiteral* evaluateScopeResolution(ASTNodeScopeResolution *node);
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ASTNodeIntegerLiteral* evaluateRValue(ASTNodeRValue *node);
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ASTNode* evaluateFunctionCall(ASTNodeFunctionCall *node);
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ASTNodeIntegerLiteral* evaluateOperator(ASTNodeIntegerLiteral *left, ASTNodeIntegerLiteral *right, Token::Operator op);
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ASTNodeIntegerLiteral* evaluateOperand(ASTNode *node);
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ASTNodeIntegerLiteral* evaluateTernaryExpression(ASTNodeTernaryExpression *node);
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ASTNodeIntegerLiteral* evaluateMathematicalExpression(ASTNodeNumericExpression *node);
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PatternData* patternFromName(const std::vector<std::string> &name);
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PatternData* evaluateBuiltinType(ASTNodeBuiltinType *node);
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void evaluateMember(ASTNode *node, std::vector<PatternData*> &currMembers, bool increaseOffset);
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PatternData* evaluateStruct(ASTNodeStruct *node);
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PatternData* evaluateUnion(ASTNodeUnion *node);
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PatternData* evaluateEnum(ASTNodeEnum *node);
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PatternData* evaluateBitfield(ASTNodeBitfield *node);
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PatternData* evaluateType(ASTNodeTypeDecl *node);
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PatternData* evaluateVariable(ASTNodeVariableDecl *node);
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PatternData* evaluateArray(ASTNodeArrayVariableDecl *node);
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PatternData* evaluatePointer(ASTNodePointerVariableDecl *node);
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template<typename T>
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T* asType(ASTNode *param) {
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if (auto evaluatedParam = dynamic_cast<T*>(param); evaluatedParam != nullptr)
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return evaluatedParam;
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else
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throwEvaluateError("function got wrong type of parameter");
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}
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void registerBuiltinFunctions();
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#define BUILTIN_FUNCTION(name) ASTNodeIntegerLiteral* TOKEN_CONCAT(builtin_, name)(std::vector<ASTNode*> params)
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BUILTIN_FUNCTION(findSequence);
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BUILTIN_FUNCTION(readUnsigned);
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BUILTIN_FUNCTION(readSigned);
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BUILTIN_FUNCTION(assert);
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BUILTIN_FUNCTION(warnAssert);
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BUILTIN_FUNCTION(print);
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#undef BUILTIN_FUNCTION
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};
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} |