/**
* @param Compiler $compiler
* @param Twig_Node $node
* @return Segment|string
*/
private function getIncludeData(Compiler $compiler, Twig_Node $node)
{
if ($child = $node->getNode('variables')) {
return $compiler->compileNode($child);
}
return '[]';
}
/**
* @param Compiler $compiler
* @param Twig_Node $node
* @param string $name
* @return null|Segment|Segment[]
* @throws NotImplementedException
* @throws UnknownStructureException
*/
protected function getOptionalCompiledNode(Compiler $compiler, Twig_Node $node, $name)
{
if (($child = $node->getNode($name)) !== null) {
return $compiler->compileNode($child);
}
return null;
}
/**
* @param Compiler $compiler
* @param Twig_Node $node
* @return array
*/
private function getValues(Compiler $compiler, Twig_Node $node)
{
$values = [];
for ($i = 0; $i < $node->count(); $i += 2) {
$key = $compiler->compileNode($node->getNode($i));
$value = $compiler->compileNode($node->getNode($i + 1));
$values[strval($key)] = strval($value);
}
return $values;
}
/**
* @param Compiler $compiler
* @param Twig_Node $node
* @return Segment[]
* @throws NotImplementedException
* @throws UnknownStructureException
*/
private function getFilterArguments(Compiler $compiler, Twig_Node $node)
{
if (!$node->hasNode('arguments')) {
return [];
}
$arguments = [];
foreach ($node->getNode('arguments') as $argument) {
$arguments[] = $compiler->compileNode($argument);
}
return $arguments;
}
/**
* @param Compiler $compiler
* @param Twig_Node $node
* @return Segment[]
* @throws NotImplementedException
* @throws UnknownStructureException
*/
public function compile(Compiler $compiler, Twig_Node $node)
{
$commands = [];
foreach ($node as $child) {
$compilation = $compiler->compileNode($child);
if (!is_array($compilation)) {
$compilation = [$compilation];
}
$commands = array_merge($commands, $compilation);
}
return $commands;
}
/**
* @param Compiler $compiler
* @param Twig_Node $body
* @return array
*/
private function getIfCommands(Compiler $compiler, Twig_Node $body)
{
$test = $compiler->compileNode($body->getNode(0));
$cmd = $compiler->compileNode($body->getNode(1));
$commands = [];
$commands[] = new Command("if ({$test}) {");
$commands = array_merge($commands, $cmd);
$commands[] = new Command('}');
for ($i = 2; $i < count($body); $i += 2) {
$test = $compiler->compileNode($body->getNode($i + 0));
$cmd = $compiler->compileNode($body->getNode($i + 1));
$commands[] = new Command("else if ({$test}) {");
$commands = array_merge($commands, $cmd);
$commands[] = new Command('}');
}
return $commands;
}
/**
* @param string $filename
* @param string $source
* @return string
*/
public function convertSource($filename, $source)
{
$compiler = new Compiler($this->twigEnvironment);
$code = $compiler->compileSource($source);
return $this->exportHandler->export($filename, $code);
}