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File: src/eMacros/Runtime/Logical/LogicalNot.php

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  Classes of Emmanuel Antico  >  eMacros  >  src/eMacros/Runtime/Logical/LogicalNot.php  >  Download  
File: src/eMacros/Runtime/Logical/LogicalNot.php
Role: Class source
Content type: text/plain
Description: Class source
Class: eMacros
PHP LISP language interpreter
Author: By
Last change:
Date: 2014-01-13 05:23
Size: 519 bytes
 

Contents

Class file image Download
<?php
namespace eMacros\Runtime\Logical;

use eMacros\Runtime\GenericFunction;

class LogicalNot extends GenericFunction {
    /**
     * Applies a logical NOT to a given value
     * Usage: (not (and true true)) (not (or false))
     * Returns: boolean
     * (non-PHPdoc)
     * @see \eMacros\Runtime\GenericFunction::execute()
     */
    public function execute(array $arguments) {
        if (empty($arguments)) {
            throw new \BadFunctionCallException("Not: No parameters found.");
        }
        
        return !$arguments[0];
    }
}