/**
* Compiles the opening tag for a function
* @param \Box\Brainy\Compiler\TemplateCompiler $compiler A compiler reference
* @param array|null $args Arguments
* @param array|null $params Parameters
* @return mixed
*/
public static function compileOpen(\Box\Brainy\Compiler\TemplateCompiler $compiler, $args, $params)
{
$var = self::getRequiredArg($args, 'var');
$value = self::getRequiredArg($args, 'value');
$scopeRaw = self::getOptionalArg($args, 'scope', self::getDefaultScope());
switch (\Box\Brainy\Compiler\Decompile::decompileString($scopeRaw)) {
case 'local':
$scope = Brainy::SCOPE_LOCAL;
break;
case 'parent':
$scope = Brainy::SCOPE_PARENT;
break;
case 'root':
$scope = Brainy::SCOPE_ROOT;
break;
case 'global':
$scope = Brainy::SCOPE_GLOBAL;
break;
default:
$compiler->trigger_template_error('illegal value for "scope" attribute: ' . $scopeRaw, $compiler->lex->taglineno);
}
// implement Smarty2's behaviour of variables assigned by reference
if ($compiler->template->smarty instanceof SmartyBC && Brainy::$assignment_compat === Brainy::ASSIGN_COMPAT) {
$output = "if (isset(\$_smarty_tpl->tpl_vars[{$var}])) {\n";
$output .= " \$_smarty_tpl->tpl_vars[{$var}] = clone \$_smarty_tpl->tpl_vars[{$var}];\n";
$output .= " \$_smarty_tpl->tpl_vars[{$var}]->value = {$value};\n";
$output .= " \$_smarty_tpl->tpl_vars[{$var}]->scope = {$scope};\n";
$output .= "} else {\$_smarty_tpl->assign({$var}, {$value}, {$scope});}\n";
} else {
$output = "\$_smarty_tpl->assign({$var}, {$value}, {$scope});\n";
}
return $output;
}
/**
* Pop closing tag
*
* Raise an error if this stack-top doesn't match with expected opening tags
*
* @param \Box\Brainy\Compiler\TemplateCompiler $compiler
* @param array|string $expectedTag the expected opening tag names
* @return mixed any type the opening tag's name or saved data
*/
public static function closeTag($compiler, $expectedTag)
{
if (count($compiler->_tag_stack) === 0) {
// wrong nesting of tags
$compiler->trigger_template_error("unexpected closing tag", $compiler->lex->taglineno);
}
// get stacked info
list($openTag, $data) = array_pop($compiler->_tag_stack);
// open tag must match with the expected ones
if (!in_array($openTag, (array) $expectedTag)) {
// wrong nesting of tags
$compiler->trigger_template_error("unclosed {$compiler->smarty->left_delimiter}" . $openTag . "{$compiler->smarty->right_delimiter} tag");
return;
}
return is_null($data) ? $openTag : $data;
}