File: src/eMacros/Runtime/Collection/ArraySort.php

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File: src/eMacros/Runtime/Collection/ArraySort.php
Role: Class source
Content type: text/plain
Description: Class source
Class: eMacros
PHP LISP language interpreter
Author: By
Last change:
Date: 7 years ago
Size: 1,356 bytes
 

Contents

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<?php
namespace eMacros\Runtime\Collection;

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

class
ArraySort implements Applicable {
   
/**
     * Callback to invoke
     * @var callable
     */
   
public $callback;
   
    public function
__construct($callback) {
       
$this->callback = $callback;
    }
   
   
/**
     * Array sort wrapper callback
     * Usage: (Array::sort _array) (Array::arsort _arr)
     * Returns: boolean
     * (non-PHPdoc)
     * @see \eMacros\Applicable::apply()
     */
   
public function apply(Scope $scope, GenericList $arguments) {
        if (
count($arguments) == 0) {
            throw new \
BadFunctionCallException("ArraySort: No array specified.");
        }
       
       
$target = $arguments[0];
       
        if (!(
$target instanceof Symbol)) {
            throw new \
InvalidArgumentException(sprintf("ArraySort: Expected symbol as first argument but %s was found instead.", substr(strtolower(strstr(get_class($arguments[0]), '\\')), 1)));
        }
       
       
$ref = $target->symbol;
       
        if (
is_array($scope->symbols[$ref])) {
           
$func = $this->callback;
           
            if (
count($arguments) > 1) {
                return
$func($scope->symbols[$ref], $arguments[1]->evaluate($scope));
            }
           
            return
$func($scope->symbols[$ref]);
        }
       
        throw new \
InvalidArgumentException(sprintf("ArraySort: Expected array as first argument but %s was found instead.", gettype($scope->symbols[$ref])));
    }
}
?>

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