smarty_internal_compile_assign.php (4066B)
1 <?php 2 /** 3 * Smarty Internal Plugin Compile Assign 4 * Compiles the {assign} tag 5 * 6 * @package Smarty 7 * @subpackage Compiler 8 * @author Uwe Tews 9 */ 10 11 /** 12 * Smarty Internal Plugin Compile Assign Class 13 * 14 * @package Smarty 15 * @subpackage Compiler 16 */ 17 class Smarty_Internal_Compile_Assign extends Smarty_Internal_CompileBase 18 { 19 /** 20 * Compiles code for the {assign} tag 21 * 22 * @param array $args array with attributes from parser 23 * @param object $compiler compiler object 24 * @param array $parameter array with compilation parameter 25 * 26 * @return string compiled code 27 */ 28 public function compile($args, $compiler, $parameter) 29 { 30 // the following must be assigned at runtime because it will be overwritten in Smarty_Internal_Compile_Append 31 $this->required_attributes = array('var', 'value'); 32 $this->shorttag_order = array('var', 'value'); 33 $this->optional_attributes = array('scope'); 34 $_nocache = 'null'; 35 $_scope = Smarty::SCOPE_LOCAL; 36 // check and get attributes 37 $_attr = $this->getAttributes($compiler, $args); 38 // nocache ? 39 if ($compiler->tag_nocache || $compiler->nocache) { 40 $_nocache = 'true'; 41 // create nocache var to make it know for further compiling 42 if (isset($compiler->template->tpl_vars[trim($_attr['var'], "'")])) { 43 $compiler->template->tpl_vars[trim($_attr['var'], "'")]->nocache = true; 44 } else { 45 $compiler->template->tpl_vars[trim($_attr['var'], "'")] = new Smarty_Variable(null, true); 46 } 47 } 48 // scope setup 49 if (isset($_attr['scope'])) { 50 $_attr['scope'] = trim($_attr['scope'], "'\""); 51 if ($_attr['scope'] == 'parent') { 52 $_scope = Smarty::SCOPE_PARENT; 53 } elseif ($_attr['scope'] == 'root') { 54 $_scope = Smarty::SCOPE_ROOT; 55 } elseif ($_attr['scope'] == 'global') { 56 $_scope = Smarty::SCOPE_GLOBAL; 57 } else { 58 $compiler->trigger_template_error('illegal value for "scope" attribute', $compiler->lex->taglineno); 59 } 60 } 61 // compiled output 62 if (isset($parameter['smarty_internal_index'])) { 63 $output = "<?php \$_smarty_tpl->createLocalArrayVariable($_attr[var], $_nocache, $_scope);\n\$_smarty_tpl->tpl_vars[$_attr[var]]->value$parameter[smarty_internal_index] = $_attr[value];"; 64 } else { 65 // implement Smarty2's behaviour of variables assigned by reference 66 if ($compiler->template->smarty instanceof SmartyBC) { 67 $output = "<?php if (isset(\$_smarty_tpl->tpl_vars[$_attr[var]])) {\$_smarty_tpl->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];"; 68 $output .= "\n\$_smarty_tpl->tpl_vars[$_attr[var]]->value = $_attr[value]; \$_smarty_tpl->tpl_vars[$_attr[var]]->nocache = $_nocache; \$_smarty_tpl->tpl_vars[$_attr[var]]->scope = $_scope;"; 69 $output .= "\n} else \$_smarty_tpl->tpl_vars[$_attr[var]] = new Smarty_Variable($_attr[value], $_nocache, $_scope);"; 70 } else { 71 $output = "<?php \$_smarty_tpl->tpl_vars[$_attr[var]] = new Smarty_Variable($_attr[value], $_nocache, $_scope);"; 72 } 73 } 74 if ($_scope == Smarty::SCOPE_PARENT) { 75 $output .= "\nif (\$_smarty_tpl->parent != null) \$_smarty_tpl->parent->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];"; 76 } elseif ($_scope == Smarty::SCOPE_ROOT || $_scope == Smarty::SCOPE_GLOBAL) { 77 $output .= "\n\$_ptr = \$_smarty_tpl->parent; while (\$_ptr != null) {\$_ptr->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]]; \$_ptr = \$_ptr->parent; }"; 78 } 79 if ($_scope == Smarty::SCOPE_GLOBAL) { 80 $output .= "\nSmarty::\$global_tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];"; 81 } 82 $output .= '?>'; 83 84 return $output; 85 } 86 }