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#include <sstream>
#include "value.h"
#include "evaluator.h"
value::value(enum value_type type) :
m_type(type)
{ }
enum value_type
value::get_type()
{
return m_type;
}
tree_value::tree_value(
evaluator * evaluator,
value * lchild,
value * rchild)
:
value(VALUE_TYPE_TREE),
m_evaluator(evaluator),
m_lchild(lchild),
m_rchild(rchild)
{ }
value *
tree_value::simplify()
{
if (!m_evaluator) {
return this->clone();
}
return m_evaluator->evaluate(
m_lchild ? m_lchild->simplify() : NULL,
m_rchild ? m_rchild->simplify() : NULL);
}
value *
tree_value::clone()
{
return new tree_value(m_evaluator,
(m_lchild ? m_lchild->clone() : NULL),
(m_rchild ? m_rchild->clone() : NULL));
}
std::string
tree_value::to_string()
{
return "(" + (m_lchild ? m_lchild->to_string() : "?") + ") "
+ (m_evaluator ? m_evaluator->to_string() : "?") + " ("
+ (m_rchild ? m_rchild->to_string() : "?") + ")";
}
float_value::float_value() :
value(VALUE_TYPE_FLOAT),
m_has_value(false)
{ }
float_value::float_value(float init_value) :
/* XXX: Can we call the other constructor here? */
value(VALUE_TYPE_FLOAT),
m_has_value(true),
m_value(init_value)
{ }
value *
float_value::simplify()
{
return this;
}
value *
float_value::clone()
{
return new float_value(*this);
}
std::string
float_value::to_string()
{
std::ostringstream s;
if (!m_has_value) {
s << "?";
} else {
s << m_value;
}
return s.str();
}
void
float_value::set_value(float value)
{
m_has_value = true;
m_value = value;
}
const_value::const_value(
register_address address,
float_value * value_ptr) :
value(VALUE_TYPE_CONST),
m_reg_address(address),
m_value(value_ptr)
{ }
value *
const_value::simplify()
{
if (m_value->m_has_value) {
return m_value->clone();
} else {
return this->clone();
}
}
value *
const_value::clone()
{
return new const_value(m_reg_address, m_value);
}
std::string
const_value::to_string()
{
return m_reg_address.to_string();
}
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