/**
* @return SimplifyVisitor
*/
public function testVisitor4()
{
$visitor = new TypeVisitor(VariableNode::class);
$this->assertFalse($visitor->visit(Tree::add(2, 3)));
$this->assertFalse($visitor->visit(Tree::pow(2, 3)));
$this->assertFalse($visitor->visit(Tree::mult(2, 3)));
$this->assertFalse($visitor->visit(Tree::init(3)));
$this->assertTrue($visitor->visit(Tree::init('x')));
}
public function visitBinaryMultiplicationNode(BinaryMultiplicationNode $node)
{
if ($this->isZeroVisitor->visit($node)) {
return new ConstantNode(0);
}
$a = $this->visit($node->getA());
$b = $this->visit($node->getB());
if ($this->isOneVisitor->visit($a)) {
return $b;
}
if ($this->isOneVisitor->visit($b)) {
return $a;
}
if ($this->isConstantVisitor->visit($a)) {
if ($this->isConstantVisitor->visit($b)) {
return new ConstantNode($this->evaluationVisitor->visit($a) * $this->evaluationVisitor->visit($b));
}
}
return new BinaryMultiplicationNode($a, $b);
}
