BreakPoint.hh

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#ifndef BREAKPOINT_HH
#define BREAKPOINT_HH
 
#include "BreakPointBase.hh"
#include "CommandException.hh"
 
#include "strCat.hh"
 
#include <cstdint>
#include <optional>
 
namespace openmsx {
 
class BreakPoint final : public BreakPointBase<BreakPoint>
{
public:
        static constexpr std::string_view prefix = "bp#";
 
public:
        [[nodiscard]] std::optional<uint16_t> getAddress() const { return address; }
        [[nodiscard]] TclObject getAddressString() const { return addrStr; }
        void setAddress(Interpreter& interp, const TclObject& addr) {
                addrStr = addr;
                evaluateAddress(interp);
        }
 
        void evaluateAddress(Interpreter& interp) {
                try {
                        address = parseAddress(interp);
                } catch (MSXException&) {
                        address = {};
                }
        }
 
        [[nodiscard]] std::string parseAddressError(Interpreter& interp) const {
                try {
                        parseAddress(interp);
                        return {};
                } catch (MSXException& e) {
                        return e.getMessage();
                }
        }
 
private:
        uint16_t parseAddress(Interpreter& interp) const {
                auto tmp = addrStr.eval(interp).getInt(interp); // may throw
                if ((tmp < 0) || (tmp > 0xffff)) {
                        throw CommandException("address outside of range 0...0xffff");
                }
                return uint16_t(tmp);
        }
 
        TclObject addrStr;
        std::optional<uint16_t> address; // redundant: calculated from 'addrStr'
};
 
} // namespace openmsx
 
#endif