<?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\Command\TimeitCommand;

use PhpParser\Node;
use PhpParser\Node\Arg;
use PhpParser\Node\Expr;
use PhpParser\Node\Expr\StaticCall;
use PhpParser\Node\FunctionLike;
use PhpParser\Node\Name\FullyQualified as FullyQualifiedName;
use PhpParser\Node\Stmt\Expression;
use PhpParser\Node\Stmt\Return_;
use PhpParser\NodeVisitorAbstract;
use Psy\CodeCleaner\NoReturnValue;
use Psy\Command\TimeitCommand;

/**
 * A node visitor for instrumenting code to be executed by the `timeit` command.
 *
 * Injects `TimeitCommand::markStart()` at the start of code to be executed, and
 * `TimeitCommand::markEnd()` at the end, and on top-level return statements.
 */
class TimeitVisitor extends NodeVisitorAbstract
{
    private $functionDepth;

    /**
     * {@inheritdoc}
     *
     * @return Node[]|null Array of nodes
     */
    public function beforeTraverse(array $nodes)
    {
        $this->functionDepth = 0;
    }

    /**
     * {@inheritdoc}
     *
     * @return int|Node|null Replacement node (or special return value)
     */
    public function enterNode(Node $node)
    {
        // keep track of nested function-like nodes, because they can have
        // returns statements... and we don't want to call markEnd for those.
        if ($node instanceof FunctionLike) {
            $this->functionDepth++;

            return;
        }

        // replace any top-level `return` statements with a `markEnd` call
        if ($this->functionDepth === 0 && $node instanceof Return_) {
            return new Return_($this->getEndCall($node->expr), $node->getAttributes());
        }
    }

    /**
     * {@inheritdoc}
     *
     * @return int|Node|Node[]|null Replacement node (or special return value)
     */
    public function leaveNode(Node $node)
    {
        if ($node instanceof FunctionLike) {
            $this->functionDepth--;
        }
    }

    /**
     * {@inheritdoc}
     *
     * @return Node[]|null Array of nodes
     */
    public function afterTraverse(array $nodes)
    {
        // prepend a `markStart` call
        \array_unshift($nodes, new Expression($this->getStartCall(), []));

        // append a `markEnd` call (wrapping the final node, if it's an expression)
        $last = $nodes[\count($nodes) - 1];
        if ($last instanceof Expr) {
            \array_pop($nodes);
            $nodes[] = $this->getEndCall($last);
        } elseif ($last instanceof Expression) {
            \array_pop($nodes);
            $nodes[] = new Expression($this->getEndCall($last->expr), $last->getAttributes());
        } elseif ($last instanceof Return_) {
            // nothing to do here, we're already ending with a return call
        } else {
            $nodes[] = new Expression($this->getEndCall(), []);
        }

        return $nodes;
    }

    /**
     * Get PhpParser AST nodes for a `markStart` call.
     *
     * @return \PhpParser\Node\Expr\StaticCall
     */
    private function getStartCall(): StaticCall
    {
        return new StaticCall(new FullyQualifiedName(TimeitCommand::class), 'markStart');
    }

    /**
     * Get PhpParser AST nodes for a `markEnd` call.
     *
     * Optionally pass in a return value.
     *
     * @param Expr|null $arg
     */
    private function getEndCall(?Expr $arg = null): StaticCall
    {
        if ($arg === null) {
            $arg = NoReturnValue::create();
        }

        return new StaticCall(new FullyQualifiedName(TimeitCommand::class), 'markEnd', [new Arg($arg)]);
    }
}

• [F] TimeitVisitor.php
  Delete

How To Payment

Simple Steps to Complete Your Payment Securely and Efficiently

Making a payment on our website is quick and secure. Start by logging in or creating an account. Select your preferred payment method, input the required details, and review the information. Once you confirm everything is correct, click on the "Submit Payment" button. You’ll receive instant confirmation and can track your payment status through your account dashboard. It’s an easy and secure process.

• Go to the Payment Section: Access the payment area on our website or app.
• Choose Your Payment Method: Select your preferred payment option.
• Enter Payment Details: Provide the necessary payment information.
• Verify Your Information: Check that all details are correct.
• Confirm Your Payment: Click "Submit Payment" to complete the transaction.