Issues in InlineParserContext.php - Fixed Issues - Inspection of "Fix phpstan failures" - thephpleague/commonmark - Measure and Improve Code Quality continuously with Scrutinizer

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by Colin

created 2019-04-10 05:52 UTC

src/InlineParserContext.php (1 issue)

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Bug 1

Severity

Minor 1

Colin O'Dell 1

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<?php

/*
 * This file is part of the league/commonmark package.
 *
 * (c) Colin O'Dell <[email protected]>
 *
 * Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
 *  - (c) John MacFarlane
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace League\CommonMark;

use League\CommonMark\Block\Element\AbstractBlock;
use League\CommonMark\Delimiter\DelimiterStack;
use League\CommonMark\Reference\ReferenceMap;

class InlineParserContext
{
    private $container;
    private $referenceMap;
    private $cursor;
    private $delimiterStack;

    public function __construct(AbstractBlock $container, ReferenceMap $referenceMap)
    {
        $this->referenceMap = $referenceMap;
        $this->container = $container;
        $this->cursor = new Cursor(\trim($container->getStringContent()));
abstract class User
{
    /** @return string */
    abstract public function getPassword();
}

class MyUser extends User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
        $this->delimiterStack = new DelimiterStack();
    }

    /**
     * @return AbstractBlock
     */
    public function getContainer(): AbstractBlock
    {
        return $this->container;
    }

    /**
     * @return ReferenceMap
     */
    public function getReferenceMap(): ReferenceMap
    {
        return $this->referenceMap;
    }

    /**
     * @return Cursor
     */
    public function getCursor(): Cursor
    {
        return $this->cursor;
    }

    /**
     * @return DelimiterStack
     */
    public function getDelimiterStack(): DelimiterStack
    {
        return $this->delimiterStack;
    }
}


1		<?php
2
3		/*
4		* This file is part of the league/commonmark package.
5		*
6		* (c) Colin O'Dell <[email protected]>
7		*
8		* Original code based on the CommonMark JS reference parser (https://bitly.com/commonmark-js)
9		* - (c) John MacFarlane
10		*
11		* For the full copyright and license information, please view the LICENSE
12		* file that was distributed with this source code.
13		*/
14
15		namespace League\CommonMark;
16
17		use League\CommonMark\Block\Element\AbstractBlock;
18		use League\CommonMark\Delimiter\DelimiterStack;
19		use League\CommonMark\Reference\ReferenceMap;
20
21		class InlineParserContext
22		{
23		private $container;
24		private $referenceMap;
25		private $cursor;
26		private $delimiterStack;
27
28	1752	public function __construct(AbstractBlock $container, ReferenceMap $referenceMap)
29		{
30	1752	$this->referenceMap = $referenceMap;
31	1752	$this->container = $container;
32	1752	$this->cursor = new Cursor(\trim($container->getStringContent()));
		0 ignored issues – show Bug introduced 2019-04-10 05:33 UTC by Report Bug Copy Issue Report Show Similar Issues like this It seems like you code against a specific sub-type and not the parent class `League\CommonMark\Block\Element\AbstractBlock` as the method `getStringContent()` does only exist in the following sub-classes of `League\CommonMark\Block\Element\AbstractBlock`: `League\CommonMark\Block\...actStringContainerBlock`, `League\CommonMark\Block\Element\FencedCode`, `League\CommonMark\Block\Element\Heading`, `League\CommonMark\Block\Element\HtmlBlock`, `League\CommonMark\Block\Element\IndentedCode`, `League\CommonMark\Block\Element\Paragraph`. Maybe you want to `instanceof` check for one of these explicitly? Let’s take a look at an example: abstract class User { /** @return string / abstract public function getPassword(); } class MyUser extends User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the parent class: abstract class User { /** @return string / abstract public function getPassword(); /* @return string */ abstract public function getDisplayName(); } Loading history...
33	1752	$this->delimiterStack = new DelimiterStack();
34	1752	}
35
36		/**
37		* @return AbstractBlock
38		*/
39	1293	public function getContainer(): AbstractBlock
40		{
41	1293	return $this->container;
42		}
43
44		/**
45		* @return ReferenceMap
46		*/
47	429	public function getReferenceMap(): ReferenceMap
48		{
49	429	return $this->referenceMap;
50		}
51
52		/**
53		* @return Cursor
54		*/
55	1752	public function getCursor(): Cursor
56		{
57	1752	return $this->cursor;
58		}
59
60		/**
61		* @return DelimiterStack
62		*/
63	1743	public function getDelimiterStack(): DelimiterStack
64		{
65	1743	return $this->delimiterStack;
66		}
67		}
68

thephpleague / commonmark

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src/InlineParserContext.php (1 issue)

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