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Variable.cpp
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48 lines (44 loc) · 902 Bytes
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#include "Variable.h"
#include "ReferenceVar.h"
#include "VectorVar.h"
Variable::Variable(void)
{
}
Variable::~Variable(void)
{
}
Variable* Variable::clone() const
{
return new Variable();
}
std::shared_ptr<Variable> Variable::operate(const std::string& op, std::shared_ptr<Variable> rhs, bool allocate)
{
if (op.compare("=")==0)
{
if (rhs!=0)
{
std::shared_ptr<Variable> var(rhs->clone());
var->address = address;
(*std::shared_ptr<std::shared_ptr<Variable>>(address))=var;
return var;
}
}
if (op.compare("&")==0)
{
if (rhs!=0)
{
return std::shared_ptr<Variable>(new ReferenceVar(shared_from_this()));
}
}
if (op.compare(",")==0)
{
if (rhs!=0)
{
std::shared_ptr<VectorVar> vec(new VectorVar());
vec->v.push_back(std::shared_ptr<Variable>(this->clone()));
vec->v.push_back(std::shared_ptr<Variable>(rhs->clone()));
return vec;
}
}
return 0;
}