<?php
namespace eMacros\Runtime\Logical;
use eMacros\Applicable;
use eMacros\Scope;
use eMacros\GenericList;
class LogicalIf implements Applicable {
/**
* If control structure implementation
* Usage: (if (== (%#) 0) "No parameters found" (. (%#) " parameters found"))
* Returns: mixed
* (non-PHPdoc)
* @see \eMacros\Applicable::apply()
*/
public function apply(Scope $scope, GenericList $args) {
if (count($args) == 0) {
throw new \BadFunctionCallException("If: No parameters found.");
}
$index = $args[0]->evaluate($scope) ? 1 : 2;
return isset($args[$index]) ? $args[$index]->evaluate($scope) : null;
}
}
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