class Twig_Node_For in Zircon Profile 8
Same name and namespace in other branches
- 8.0 vendor/twig/twig/lib/Twig/Node/For.php \Twig_Node_For
Represents a for node.
@author Fabien Potencier <fabien@symfony.com>
Hierarchy
- class \Twig_Node implements Twig_NodeInterface
- class \Twig_Node_For
Expanded class hierarchy of Twig_Node_For
File
- vendor/
twig/ twig/ lib/ Twig/ Node/ For.php, line 18
View source
class Twig_Node_For extends Twig_Node {
protected $loop;
public function __construct(Twig_Node_Expression_AssignName $keyTarget, Twig_Node_Expression_AssignName $valueTarget, Twig_Node_Expression $seq, Twig_Node_Expression $ifexpr = null, Twig_NodeInterface $body, Twig_NodeInterface $else = null, $lineno, $tag = null) {
$body = new Twig_Node(array(
$body,
$this->loop = new Twig_Node_ForLoop($lineno, $tag),
));
if (null !== $ifexpr) {
$body = new Twig_Node_If(new Twig_Node(array(
$ifexpr,
$body,
)), null, $lineno, $tag);
}
parent::__construct(array(
'key_target' => $keyTarget,
'value_target' => $valueTarget,
'seq' => $seq,
'body' => $body,
'else' => $else,
), array(
'with_loop' => true,
'ifexpr' => null !== $ifexpr,
), $lineno, $tag);
}
public function compile(Twig_Compiler $compiler) {
$compiler
->addDebugInfo($this)
->write("\$context['_parent'] = \$context;\n")
->write("\$context['_seq'] = twig_ensure_traversable(")
->subcompile($this
->getNode('seq'))
->raw(");\n");
if (null !== $this
->getNode('else')) {
$compiler
->write("\$context['_iterated'] = false;\n");
}
if ($this
->getAttribute('with_loop')) {
$compiler
->write("\$context['loop'] = array(\n")
->write(" 'parent' => \$context['_parent'],\n")
->write(" 'index0' => 0,\n")
->write(" 'index' => 1,\n")
->write(" 'first' => true,\n")
->write(");\n");
if (!$this
->getAttribute('ifexpr')) {
$compiler
->write("if (is_array(\$context['_seq']) || (is_object(\$context['_seq']) && \$context['_seq'] instanceof Countable)) {\n")
->indent()
->write("\$length = count(\$context['_seq']);\n")
->write("\$context['loop']['revindex0'] = \$length - 1;\n")
->write("\$context['loop']['revindex'] = \$length;\n")
->write("\$context['loop']['length'] = \$length;\n")
->write("\$context['loop']['last'] = 1 === \$length;\n")
->outdent()
->write("}\n");
}
}
$this->loop
->setAttribute('else', null !== $this
->getNode('else'));
$this->loop
->setAttribute('with_loop', $this
->getAttribute('with_loop'));
$this->loop
->setAttribute('ifexpr', $this
->getAttribute('ifexpr'));
$compiler
->write("foreach (\$context['_seq'] as ")
->subcompile($this
->getNode('key_target'))
->raw(' => ')
->subcompile($this
->getNode('value_target'))
->raw(") {\n")
->indent()
->subcompile($this
->getNode('body'))
->outdent()
->write("}\n");
if (null !== $this
->getNode('else')) {
$compiler
->write("if (!\$context['_iterated']) {\n")
->indent()
->subcompile($this
->getNode('else'))
->outdent()
->write("}\n");
}
$compiler
->write("\$_parent = \$context['_parent'];\n");
// remove some "private" loop variables (needed for nested loops)
$compiler
->write('unset($context[\'_seq\'], $context[\'_iterated\'], $context[\'' . $this
->getNode('key_target')
->getAttribute('name') . '\'], $context[\'' . $this
->getNode('value_target')
->getAttribute('name') . '\'], $context[\'_parent\'], $context[\'loop\']);' . "\n");
// keep the values set in the inner context for variables defined in the outer context
$compiler
->write("\$context = array_intersect_key(\$context, \$_parent) + \$_parent;\n");
}
}
Members
Name | Modifiers | Type | Description | Overrides |
---|---|---|---|---|
Twig_Node:: |
protected | property | ||
Twig_Node:: |
protected | property | ||
Twig_Node:: |
protected | property | ||
Twig_Node:: |
protected | property | ||
Twig_Node:: |
public | function | ||
Twig_Node:: |
public | function | Gets an attribute value by name. | |
Twig_Node:: |
public | function | ||
Twig_Node:: |
public | function |
Overrides Twig_NodeInterface:: |
|
Twig_Node:: |
public | function | Gets a node by name. | |
Twig_Node:: |
public | function |
Overrides Twig_NodeInterface:: |
|
Twig_Node:: |
public | function | Returns true if the attribute is defined. | |
Twig_Node:: |
public | function | Returns true if the node with the given name exists. | |
Twig_Node:: |
public | function | Removes an attribute by name. | |
Twig_Node:: |
public | function | Removes a node by name. | |
Twig_Node:: |
public | function | Sets an attribute by name to a value. | |
Twig_Node:: |
public | function | Sets a node. | |
Twig_Node:: |
public | function | ||
Twig_Node:: |
public | function | ||
Twig_Node_For:: |
protected | property | ||
Twig_Node_For:: |
public | function |
Compiles the node to PHP. Overrides Twig_Node:: |
|
Twig_Node_For:: |
public | function |
Constructor. Overrides Twig_Node:: |