/**
* Visit an element.
*
* @param \Hoa\Visitor\Element $element Element to visit.
* @param mixed &$handle Handle (reference).
* @param mixed $eldnah Handle (not reference).
* @return mixed
*/
public function visit(Visitor\Element $element, &$handle = null, $eldnah = null)
{
$out = null;
// Hoa\Praspel.
if ($element instanceof Praspel\Model\Specification) {
$variable = '$' . $element->getId();
$out = $variable . ' = new \\Hoa\\Praspel\\Model\\Specification();' . "\n";
foreach ($element::getAllowedClauses() as $clause) {
if (true === $element->clauseExists($clause)) {
$out .= $element->getClause($clause)->accept($this, $handle, $eldnah);
}
}
} elseif ($element instanceof Praspel\Model\Is) {
$variable = '$' . $element->getParent()->getId();
$out = "\n" . $variable . '->getClause(\'is\')->setProperty(' . $element->getProperty() . ');' . "\n";
} elseif ($element instanceof Praspel\Model\Declaration) {
$variable = '$' . ($eldnah ?: $element->getId());
$out = "\n" . $variable . ' = $' . $element->getParent()->getId() . '->getClause(\'' . $element->getName() . '\');' . "\n";
foreach ($element->getLocalVariables() as $var) {
$out .= $var->accept($this, $handle, $eldnah);
}
foreach ($element->getPredicates() as $predicate) {
$out .= $variable . '->predicate(\'' . $predicate . '\');' . "\n";
}
} elseif ($element instanceof Praspel\Model\Variable) {
$variable = '$' . ($eldnah ?: $element->getClause()->getId());
$name = $element->getName();
$start = $variable . '[\'' . $name . '\']';
if (true === $element->isLocal()) {
$out .= $variable . '->let[\'' . $name . '\']';
} else {
$out .= $start;
}
if (null !== ($alias = $element->getAlias())) {
$out .= '->domainof(\'' . $alias . '\');' . "\n";
} else {
$out .= '->in = ' . $element->getDomains()->accept($this, $handle, $eldnah) . ';' . "\n";
}
$constraints = $element->getConstraints();
if (isset($constraints['is'])) {
$out .= $start . '->is(\'' . implode('\', \'', $constraints['is']) . '\');' . "\n";
}
if (isset($constraints['contains'])) {
foreach ($constraints['contains'] as $contains) {
$out .= $start . '->contains(' . $contains . ');' . "\n";
}
}
if (isset($constraints['key'])) {
foreach ($constraints['key'] as $pairs) {
$out .= $start . '->key(' . $pairs[0] . ')->in = ' . $pairs[1] . ';' . "\n";
}
}
} elseif ($element instanceof Praspel\Model\Throwable) {
$parent = '$' . $element->getParent()->getId();
$_variable = $element->getId();
$variable = '$' . $_variable;
$out = "\n" . $variable . ' = ' . $parent . '->getClause(\'throwable\');' . "\n";
foreach ($element as $identifier) {
$exception = $element[$identifier];
$start = $variable . '[\'' . $identifier . '\']';
$out .= $start . ' = \'' . $exception->getInstanceName() . '\';' . "\n";
if (false === $element->isDisjointed()) {
if (null !== ($with = $element->getWith())) {
$temp = $_variable . '_' . $identifier . '_with';
$out .= '$' . $temp . ' = ' . $variable . '->newWith();' . "\n";
foreach ($with->getLocalVariables() as $var) {
$out .= $var->accept($this, $handle, $temp);
}
foreach ($with->getPredicates() as $predicate) {
$out .= '$' . $temp . '->predicate(\'' . $predicate . '\');' . "\n";
}
$out .= $start . '->setWith($' . $temp . ');' . "\n";
}
} else {
$out .= $start . '->disjunctionWith(\'' . $exception->getDisjunction() . '\');' . "\n";
}
}
} elseif ($element instanceof Praspel\Model\DefaultBehavior) {
$out = "\n" . '$' . $element->getId() . ' = $' . $element->getParent()->getId() . '->getClause(\'default\')' . "\n";
foreach ($element::getAllowedClauses() as $clause) {
if (true === $element->clauseExists($clause)) {
$out .= $element->getClause($clause)->accept($this, $handle, $eldnah);
}
}
} elseif ($element instanceof Praspel\Model\Behavior) {
$out = "\n" . '$' . $element->getId() . ' = $' . $element->getParent()->getId() . '->getClause(\'behavior\')' . '->get(\'' . $element->getIdentifier() . '\');' . "\n";
foreach ($element::getAllowedClauses() as $clause) {
if (true === $element->clauseExists($clause)) {
$out .= $element->getClause($clause)->accept($this, $handle, $eldnah);
}
}
} elseif ($element instanceof Praspel\Model\Description) {
$parent = '$' . $element->getParent()->getId();
$variable = '$' . $element->getId();
$out = "\n" . $variable . ' = ' . $parent . '->getClause(\'description\');' . "\n";
foreach ($element as $example) {
$out .= $variable . '[] = \'' . preg_replace('#(?<!\\\\)\'#', '\\\'', $example) . '\';' . "\n";
}
} elseif ($element instanceof Praspel\Model\Collection) {
foreach ($element as $el) {
$out .= $el->accept($this, $handle, $eldnah);
}
} elseif ($element instanceof Realdom\Disjunction) {
$realdoms = $element->getUnflattenedRealdoms();
if (!empty($realdoms)) {
$oout = [];
foreach ($realdoms as $realdom) {
if ($realdom instanceof Realdom\IRealdom\Constant) {
$oout[] = 'const(' . $realdom->accept($this, $handle, $eldnah) . ')';
} else {
$oout[] = $realdom->accept($this, $handle, $eldnah);
}
}
$out .= 'realdom()->' . implode('->or->', $oout);
}
} elseif ($element instanceof Realdom) {
if ($element instanceof Realdom\IRealdom\Constant) {
if ($element instanceof Realdom\_Array) {
$oout = [];
foreach ($element['pairs'] as $pair) {
$_oout = null;
foreach ($pair as $_pair) {
if (null !== $_oout) {
$_oout .= ', ';
}
$_oout .= $_pair->accept($this, $handle, $eldnah);
}
$oout[] = 'array(' . $_oout . ')';
}
$out .= 'array(' . implode(', ', $oout) . ')';
} else {
$out .= $element->getConstantRepresentation();
}
} else {
$oout = [];
foreach ($element->getArguments() as $argument) {
$oout[] = $argument->accept($this, $handle, $eldnah);
}
$out .= $element->getName() . '(' . implode(', ', $oout) . ')';
}
} elseif ($element instanceof Realdom\Crate\Constant) {
$holder = $element->getHolder();
$praspel = $element->getPraspelRepresentation();
$out .= '$' . $element->getDeclaration()->getId() . '[\'' . $praspel() . '\']';
} elseif ($element instanceof Realdom\Crate\Variable) {
$holder = $element->getVariable();
if ($holder instanceof Praspel\Model\Variable\Implicit) {
$out .= 'variable($' . $holder->getClause()->getId() . '->getImplicitVariable(\'' . $holder->getName() . '\'))';
} else {
$out .= 'variable($' . $holder->getClause()->getId() . '->getVariable(\'' . $holder->getName() . '\', true))';
}
} else {
throw new Praspel\Exception\Compiler('%s is not yet implemented.', 0, get_class($element));
}
return $out;
}