73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
// eqpalg/utility/expression_engine.cpp
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#include <eqpalg/utility/expression_engine.h>
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#include <glob/SingletonTemplate.h>
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#include <eqpalg/gb_item_memory.h>
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#include <mix_cc/type/mix_time.h>
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#include <log4cplus/LOG.h>
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ExpressionEngine::ExpressionEngine(std::map<std::string, double>& mm_vars,
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std::vector<std::string>& m_tags)
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: mm_vars_(mm_vars), m_tags_(m_tags) {}
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// 惰性初始化 VarsCache（首次变量刷新时调用）
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static void ensureVarCache(VarsCache& vc, size_t tag_count) {
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if (vc.tag_num == 0 && tag_count > 0) {
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vc.init(tag_count, 6);
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}
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}
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int ExpressionEngine::registerExpression(const std::string& name,
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const std::string& raw_exp_str) {
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if (exps_.count(name)) return 0; // 已注册，幂等
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auto& entry = exps_[name];
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entry.raw_str = raw_exp_str;
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// 通过 FunVars 替换状态函数（KeepC/KeepT/RiseEdge/Detect）为 funN 变量
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auto [ok, processed] = fun_vars_.add_exp_str(raw_exp_str, &mm_vars_);
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if (!ok) return -1;
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entry.processed_str = processed;
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// 编译表达式
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try {
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entry.ptr = std::make_unique<MExp>(processed, &mm_vars_);
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} catch (const std::exception& e) {
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return -1;
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}
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// 从表达式中提取 hold(n,T) 模式
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initHoldExpStr(processed);
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return 0;
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}
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int ExpressionEngine::registerRawExpression(const std::string& name,
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const std::string& raw_exp_str) {
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if (exps_.count(name)) return 0;
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auto& entry = exps_[name];
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entry.raw_str = raw_exp_str;
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entry.processed_str = raw_exp_str;
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try {
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entry.ptr = std::make_unique<MExp>(raw_exp_str, &mm_vars_);
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} catch (const std::exception& e) {
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return -1;
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}
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return 0;
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}
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double ExpressionEngine::evaluate(const std::string& name) {
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auto it = exps_.find(name);
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if (it == exps_.end()) return 0.0;
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return it->second.ptr->evaluate();
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}
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bool ExpressionEngine::evaluateBool(const std::string& name) {
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return static_cast<bool>(evaluate(name));
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}
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int ExpressionEngine::initHoldExpStr(const std::string& exp_str) {
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return 0; // stub — Task 5 will implement
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}
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