initial import

2025-10-14 13:33:14 +00:00 · 2011-02-16 16:09:48 +01:00
parent 399a584b6f
commit 339d23c06d
5539 changed files with 2028637 additions and 1 deletions
--- a/lib/classes/Twig/Node/For.php
+++ b/lib/classes/Twig/Node/For.php
@@ -0,0 +1,124 @@
+<?php
+
+/*
+ * This file is part of Twig.
+ *
+ * (c) 2009 Fabien Potencier
+ * (c) 2009 Armin Ronacher
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Represents a for node.
+ *
+ * @package    twig
+ * @author     Fabien Potencier <fabien.potencier@symfony-project.com>
+ */
+class Twig_Node_For extends Twig_Node
+{
+    public function __construct(Twig_Node_Expression_AssignName $keyTarget, Twig_Node_Expression_AssignName $valueTarget, Twig_Node_Expression $seq, Twig_NodeInterface $body, Twig_NodeInterface $else = null, $withLoop = false, $lineno, $tag = null)
+    {
+        parent::__construct(array('key_target' => $keyTarget, 'value_target' => $valueTarget, 'seq' => $seq, 'body' => $body, 'else' => $else), array('with_loop' => $withLoop), $lineno, $tag);
+    }
+
+    /**
+     * Compiles the node to PHP.
+     *
+     * @param Twig_Compiler A Twig_Compiler instance
+     */
+    public function compile($compiler)
+    {
+        $compiler
+            ->addDebugInfo($this)
+            // the (array) cast bypasses a PHP 5.2.6 bug
+            ->write('$context[\'_parent\'] = (array) $context;'."\n")
+        ;
+
+        if (null !== $this->getNode('else')) {
+            $compiler->write("\$context['_iterated'] = false;\n");
+        }
+
+        $compiler
+            ->write("\$context['_seq'] = twig_iterator_to_array(")
+            ->subcompile($this->getNode('seq'))
+            ->raw(");\n")
+        ;
+
+        if ($this->getAttribute('with_loop')) {
+            $compiler
+                ->write("\$countable = is_array(\$context['_seq']) || (is_object(\$context['_seq']) && \$context['_seq'] instanceof Countable);\n")
+                ->write("\$length = \$countable ? count(\$context['_seq']) : null;\n")
+
+                ->write("\$context['loop'] = array(\n")
+                ->write("  'parent' => \$context['_parent'],\n")
+                ->write("  'index0' => 0,\n")
+                ->write("  'index'  => 1,\n")
+                ->write("  'first'  => true,\n")
+                ->write(");\n")
+                ->write("if (\$countable) {\n")
+                ->indent()
+                ->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")
+            ;
+        }
+
+        $compiler
+            ->write("foreach (\$context['_seq'] as ")
+            ->subcompile($this->getNode('key_target'))
+            ->raw(" => ")
+            ->subcompile($this->getNode('value_target'))
+            ->raw(") {\n")
+            ->indent()
+        ;
+
+        if (null !== $this->getNode('else')) {
+            $compiler->write("\$context['_iterated'] = true;\n");
+        }
+
+        $compiler->subcompile($this->getNode('body'));
+
+        if ($this->getAttribute('with_loop')) {
+            $compiler
+                ->write("++\$context['loop']['index0'];\n")
+                ->write("++\$context['loop']['index'];\n")
+                ->write("\$context['loop']['first'] = false;\n")
+                ->write("if (\$countable) {\n")
+                ->indent()
+                ->write("--\$context['loop']['revindex0'];\n")
+                ->write("--\$context['loop']['revindex'];\n")
+                ->write("\$context['loop']['last'] = 0 === \$context['loop']['revindex0'];\n")
+                ->outdent()
+                ->write("}\n")
+            ;
+        }
+
+        $compiler
+            ->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_merge($_parent, array_intersect_key($context, $_parent));'."\n");
+    }
+}