Desmond\Repl

Complexity

Total Complexity

11

Size/Duplication

Total Lines	56
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Importance

Changes

0

6 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
B	start()	0	22	5
A	welcome()	0	7	1
A	promptForInput()	0	5	1
A	isExitCommand()	0	4	1
A	shouldBeProcessed()	0	4	2

<?php
namespace Desmond;
use Desmond\Desmond;
use Desmond\data_types\VoidType;

class Repl
{
    private $desmond;

    public function __construct()
    {
        $this->desmond = new Desmond();
    }

    public function start()
    {
        $this->welcome();
        do {
            $input = $this->promptForInput();

            if ($this->isExitCommand($input)) {
                exit("Later, guy.\n");

The method start() contains an exit expression.

            }

            if ($this->shouldBeProcessed($input)) {
                try {
                    $return = $this->desmond->pretty(
                        $this->desmond->run($input));
                } catch (\Exception $exception) {
                    echo "#! {$exception->getMessage()}\n";
                    continue;
                }
                echo $return . "\n";
            }
        } while (!feof(STDIN));
    }

    private function welcome()
    {
        echo "
Copyright 2017, Scott Christianson
Version 0.3.3
Welcome to Desmond's REPL.\n\n";
    }

    private function promptForInput()
    {
        echo '/user λ ';
        return fgets(STDIN);
    }

    private function isExitCommand($input)
    {
        return $input == "exit\n";
    }

    private function shouldBeProcessed($input)
    {
        return !empty($input) && !preg_match('/^;/', $input);
    }
}