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#include "binding.h"
#include <stdexcept>
#include <utility>
namespace verbly {
binding::binding(const binding& other)
{
type_ = other.type_;
switch (type_)
{
case type::integer:
{
integer_ = other.integer_;
break;
}
case type::string:
{
new(&string_) std::string(other.string_);
break;
}
case type::invalid:
{
break;
}
}
}
binding::binding(binding&& other) : binding()
{
swap(*this, other);
}
binding& binding::operator=(binding other)
{
swap(*this, other);
return *this;
}
void swap(binding& first, binding& second)
{
using type = binding::type;
type tempType = first.type_;
int tempInteger;
std::string tempString;
switch (first.type_)
{
case type::integer:
{
tempInteger = first.integer_;
break;
}
case type::string:
{
tempString = std::move(tempString);
break;
}
case type::invalid:
{
break;
}
}
first.~binding();
first.type_ = second.type_;
switch (second.type_)
{
case type::integer:
{
first.integer_ = second.integer_;
break;
}
case type::string:
{
new(&first.string_) std::string(std::move(second.string_));
break;
}
case type::invalid:
{
break;
}
}
second.~binding();
second.type_ = tempType;
switch (tempType)
{
case type::integer:
{
second.integer_ = tempInteger;
break;
}
case type::string:
{
new(&second.string_) std::string(std::move(tempString));
break;
}
case type::invalid:
{
break;
}
}
}
binding::~binding()
{
switch (type_)
{
case type::string:
{
using string_type = std::string;
string_.~string_type();
break;
}
case type::integer:
case type::invalid:
{
break;
}
}
}
binding::binding(int arg) :
type_(type::integer),
integer_(arg)
{
}
int binding::getInteger() const
{
if (type_ != type::integer)
{
throw std::domain_error("binding::getInteger called on non-integer binding");
}
return integer_;
}
binding::binding(std::string arg) : type_(type::string)
{
new(&string_) std::string(arg);
}
std::string binding::getString() const
{
if (type_ != type::string)
{
throw std::domain_error("binding::getString called on non-string binding");
}
return string_;
}
};
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