132         $block = new $className($name, isset($tplIndex) ? $tplIndex : $this->tplIndex);
134             $block->child = $this->childRoot[ $name ];
137             $this->childRoot[ $name ] = $block;
141         while ($block->child && $block->tplIndex <= $block->child->tplIndex) {
142             $block->child = $block->child->child;
144         $this->process($tpl, $block);
156     public function process(Smarty_Internal_Template $tpl, Smarty_Internal_Block $block,  argument
159         if ($block->hide && !isset($block->child)) {
162         if (isset($block->child) && $block->child->hide && !isset($block->child->child)) {
163             $block->child = null;
165         $block->parent = $parent;
166         if ($block->append && !$block->prepend && isset($parent)) {
167             $this->callParent($tpl, $block);
169 …if ($block->callsChild || !isset($block->child) || ($block->child->hide && !isset($block->child->c…
170             $this->callBlock($block, $tpl);
172             $this->process($tpl, $block->child, $block);
174         if ($block->prepend && isset($parent)) {
175             $this->callParent($tpl, $block);
176             if ($block->append) {
177                 if ($block->callsChild || !isset($block->child) ||
178                     ($block->child->hide && !isset($block->child->child))
180                     $this->callBlock($block, $tpl);
182                     $this->process($tpl, $block->child, $block);
186         $block->parent = null;
195     public function callChild(Smarty_Internal_Template $tpl, Smarty_Internal_Block $block)  argument
197         if (isset($block->child)) {
198             $this->process($tpl, $block->child, $block);
212 …public function callParent(Smarty_Internal_Template $tpl, Smarty_Internal_Block $block, $name = nu…  argument
215             $block = $block->parent;
216             while (isset($block)) {
217                 if (isset($block->subBlocks[ $name ])) {
219                     $block = $block->parent;
223         } else if (isset($block->parent)) {
224             $this->callBlock($block->parent, $tpl);
226 … used in parent template '{$tpl->inheritance->sources[$block->tplIndex]->filepath}' block '{$block…
234     public function callBlock(Smarty_Internal_Block $block, Smarty_Internal_Template $tpl)  argument
237         $tpl->source = $this->sources[ $block->tplIndex ];
238         $block->callBlock($tpl);