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File: src/eMacros/Runtime/Binary/BinaryOr.php

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  Classes of Emmanuel Antico  >  eMacros  >  src/eMacros/Runtime/Binary/BinaryOr.php  >  Download  
File: src/eMacros/Runtime/Binary/BinaryOr.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: 750 bytes
 

Contents

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

use eMacros\Applicable;
use eMacros\Scope;
use eMacros\GenericList;

class BinaryOr implements Applicable {
    /**
     * Applies the binary OR to a list of operands
     * Usage: (| 5 2)
     * Returns: number
     * (non-PHPdoc)
     * @see \eMacros\Applicable::apply()
     */
    public function apply(Scope $scope, GenericList $arguments) {
        if (count($arguments) == 0) {
            throw new \BadFunctionCallException("BinaryOr: No parameters found.");
        }
        
        $it = $arguments->getIterator();
        $it->rewind();
        
        if (!$it->valid()) {
            return 0;
        }
        
        $value = $it->current()->evaluate($scope);
        
        for ($it->next(); $it->valid(); $it->next()) {
            $value |= $it->current()->evaluate($scope);
        }
        
        return $value;
    }
}
?>