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<?php
/*
* This file is part of Psy Shell.
*
* (c) 2012-2023 Justin Hileman
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Psy\ExecutionLoop;
use Psy\Shell;
/**
* Execution Loop Listener interface.
*/
interface Listener
{
/**
* Determines whether this listener should be active.
*/
public static function isSupported(): bool;
/**
* Called once before the REPL session starts.
*
* @param Shell $shell
*/
public function beforeRun(Shell $shell);
/**
* Called at the start of each loop.
*
* @param Shell $shell
*/
public function beforeLoop(Shell $shell);
/**
* Called on user input.
*
* Return a new string to override or rewrite user input.
*
* @param Shell $shell
* @param string $input
*
* @return string|null User input override
*/
public function onInput(Shell $shell, string $input);
/**
* Called before executing user code.
*
* Return a new string to override or rewrite user code.
*
* Note that this is run *after* the Code Cleaner, so if you return invalid
* or unsafe PHP here, it'll be executed without any of the safety Code
* Cleaner provides. This comes with the big kid warranty :)
*
* @param Shell $shell
* @param string $code
*
* @return string|null User code override
*/
public function onExecute(Shell $shell, string $code);
/**
* Called at the end of each loop.
*
* @param Shell $shell
*/
public function afterLoop(Shell $shell);
/**
* Called once after the REPL session ends.
*
* @param Shell $shell
*/
public function afterRun(Shell $shell);
}
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