EvalState.cpp

#include "evalstate.h"
#include <stdexcept>

EvalState::EvalState(std::istream &input, std::ostream &output)
    : m_input(&input), m_output(&output) {}

void EvalState::setValue(const std::string& name, int value) {
    variables[name] = value;
}

int EvalState::getValue(const std::string& name) const {
    auto it = variables.find(name);
    if (it == variables.end()) {
        throw std::runtime_error("Undefined variable: " + name);
    }
    return it->second;
}

bool EvalState::isDefined(const std::string& name) const {
    return variables.find(name) != variables.end();
}

void EvalState::clear() {
    variables.clear();
}

void EvalState::setInputStream(std::istream &input) {
    m_input = &input;
}

void EvalState::setOutputStream(std::ostream &output) {
    m_output = &output;
}

std::istream &EvalState::input() const {
    return *m_input;
}

std::ostream &EvalState::output() const {
    return *m_output;
}