public function addEndNode(State $state)
{
$end = $state->addVertex(new JitEnd());
foreach ($state->graph->vertices() as $vertex) {
if ($vertex instanceof JitReturn) {
$state->graph->ensureArc($vertex, $end);
}
}
}
public function parse(Node $stmt, State $state)
{
$goto = $state->addVertex(new Jump());
$state->last = null;
if (isset($state->labels[$stmt->name])) {
$state->graph->ensureArc($goto, $state->labels[$stmt->name]);
return;
}
if (!isset($state->gotolist[$stmt->name])) {
$state->gotolist[$stmt->name] = array();
}
$state->gotolist[$stmt->name][] = $goto;
}
public function parse(Node $stmt, State $state)
{
if (isset($state->labels[$stmt->name])) {
throw new \RuntimeException('Found label with duplicate name');
}
$label = new NoOp();
$state->addVertex($label);
$state->labels[$stmt->name] = $label;
if (isset($state->gotolist[$stmt->name])) {
foreach ($state->gotolist[$stmt->name] as $node) {
$state->graph->ensureArc($node, $label);
}
}
}
public function parse(Node $stmt, State $state)
{
$result = new Variable(new Type(Type::TYPE_BOOLEAN));
$false = new Constant(false);
$state->addVertex(new Vertex\Assign($false, $result));
$end = new Vertex\NoOp();
$left = $state->parser->parseNode($stmt->left, $state);
$jmp = $state->addVertex(new Vertex\JumpZ($end, $left));
$state->graph->ensureArc($jmp, $end);
$right = $state->parser->parseNode($stmt->right, $state);
$state->addVertex(new Vertex\Assign($right, $result));
$state->addVertex(new Vertex\Jump());
$state->addVertex($end);
return $result;
}