public function visitPowerNode(PowerNode $node)
{
if ($this->_evalIsZero($node->getExponent())) {
return true;
}
return $this->_evalIsOne($node);
}
public function visitPowerNode(PowerNode $node)
{
if ($this->visit($node->getBase())) {
return true;
}
return $this->_evalIsZero($node);
}
public function visitPowerNode(PowerNode $node)
{
$childVisitor = new self($node);
$base = $node->getBase();
$exp = $node->getExponent();
return $this->_process($node, $base->accept($childVisitor) . ' ^ ' . $exp->accept($childVisitor));
}
public function visitPowerNode(PowerNode $node)
{
$v = new XMLVisitor($this->depth + 3);
return $this->_renderNode($this->_indent($this->depth + 1) . '<power>' . PHP_EOL . $this->_indent($this->depth + 2) . '<base>' . PHP_EOL . $v->visit($node->getBase()) . PHP_EOL . $this->_indent($this->depth + 2) . '</base>' . PHP_EOL . $this->_indent($this->depth + 2) . '<exponent>' . PHP_EOL . $v->visit($node->getExponent()) . PHP_EOL . $this->_indent($this->depth + 2) . '</exponent>' . PHP_EOL . $this->_indent($this->depth + 1) . '</power>');
}
public function visitPowerNode(PowerNode $node)
{
$exp = new AdditionNode($node->getExponent(), new ConstantNode(-1));
$pow = new PowerNode($node->getBase(), $exp);
return new ArrayMultiplicationNode($node->getExponent(), $pow, $this->visit($node->getBase()));
}
public function visitPowerNode(PowerNode $node)
{
return pow($this->visit($node->getBase()), $this->visit($node->getExponent()));
}
public function visitPowerNode(PowerNode $node)
{
$a = $this->visit($node->getBase());
$b = $this->visit($node->getExponent());
//TODO REMOVE
if ($this->isZeroVisitor->visit($a)) {
return Tree::init(0);
}
if ($this->isZeroVisitor->visit($b)) {
return Tree::init(1);
}
if ($this->isOneVisitor->visit($b)) {
return $a;
}
return new PowerNode($a, $b);
}
