JsFunctionsScanner::isCallExpression() - Code Metrics - Inspection of "Fix stripping backslash from new line characters i..." - oscarotero/Gettext - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#201)

unknown

created 2019-03-25 15:09 UTC

JsFunctionsScanner::isCallExpression() A

↳ Parent: JsFunctionsScanner

Complexity

Conditions	2
Paths	2

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	2
nc	2
nop	1
dl	0
loc	4
rs	10
c	0
b	0
f	0

<?php

namespace Gettext\Utils;

use Peast\Peast;
use Peast\Syntax\Node\CallExpression;
use Peast\Syntax\Node\MemberExpression;
use Peast\Syntax\Node\Node;
use Peast\Traverser;

class JsFunctionsScanner extends FunctionsScanner
{
    private $ast;

    /**
     * Constructor.
     *
     * @param string $code The php code to scan
     */
    public function __construct($code)
    {
        $this->ast = Peast::latest($code, [
            'sourceType' => Peast::SOURCE_TYPE_MODULE,
            'jsx' => true,
        ])->parse();
    }

    public function getFunctions(array $constants = [])
    {
        $functions = [];

        $traverser = new Traverser;
        $traverser->addFunction(function ($node) use (&$functions) {
            if (!$this->isCallExpression($node)) {
                return;
            }

            $functions[] = [
                $this->getNodeName($node),
                $this->getStartingLineNumber($node),
                $this->getArguments($node),
            ];
        });

        $traverser->traverse($this->ast);

        return $functions;
    }

    /**
     * Checks if given $node is a CallExpression.
     *
     * @param Node $node
     *
     * @return bool
     */
    private function isCallExpression(Node $node)
    {
        return $node instanceof CallExpression || $node->getType() === 'CallExpression';
    }

    /**
     * Returns given $node's name.
     *
     * @param Node $node
     *
     * @return string|null
     */
    private function getNodeName(Node $node)
    {
        if (method_exists($node, 'getCallee')) {
            return $this->getNodeName($node->getCallee());
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.
    }
}
        }

        if ($node instanceof MemberExpression && $node->getProperty() instanceof Node) {
            return $this->getNodeName($node->getProperty());
        }

        if (method_exists($node, 'getName')) {
            return $node->getName();
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.
    }
}
        }

        return null;
    }

    /**
     * Returns the starting line number of given $node.
     *
     * @param Node $node
     *
     * @return int
     */
    private function getStartingLineNumber(Node $node)
    {
        return $node->getLocation()->getStart()->getLine();
    }

    /**
     * Returns an array of arguments for given $node.
     *
     * @param Node $node
     *
     * @return array
     */
    private function getArguments(Node $node)
    {
        return array_map(function($argument) {
            return $this->getArgumentValue($argument);
        }, $node->getArguments());
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.
    }
}
    }

    /**
     * Returns argument value of given $node.
     *
     * @param Node $node
     *
     * @return string|null
     */
    private function getArgumentValue(Node $node)
    {
        if ($node->getType() === 'Literal') {
            return $node->getValue();
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.
    }
}
        }

        return null;
    }
}


1			<?php
2
3			namespace Gettext\Utils;
4
5			use Peast\Peast;
6			use Peast\Syntax\Node\CallExpression;
7			use Peast\Syntax\Node\MemberExpression;
8			use Peast\Syntax\Node\Node;
9			use Peast\Traverser;
10
11			class JsFunctionsScanner extends FunctionsScanner
12			{
13			private $ast;
14
15			/**
16			* Constructor.
17			*
18			* @param string $code The php code to scan
19			*/
20			public function __construct($code)
21			{
22			$this->ast = Peast::latest($code, [
23			'sourceType' => Peast::SOURCE_TYPE_MODULE,
24			'jsx' => true,
25			])->parse();
26			}
27
28			public function getFunctions(array $constants = [])
29			{
30			$functions = [];
31
32			$traverser = new Traverser;
33			$traverser->addFunction(function ($node) use (&$functions) {
34			if (!$this->isCallExpression($node)) {
35			return;
36			}
37
38			$functions[] = [
39			$this->getNodeName($node),
40			$this->getStartingLineNumber($node),
41			$this->getArguments($node),
42			];
43			});
44
45			$traverser->traverse($this->ast);
46
47			return $functions;
48			}
49
50			/**
51			* Checks if given $node is a CallExpression.
52			*
53			* @param Node $node
54			*
55			* @return bool
56			*/
57			private function isCallExpression(Node $node)
58			{
59			return $node instanceof CallExpression \|\| $node->getType() === 'CallExpression';
60			}
61
62			/**
63			* Returns given $node's name.
64			*
65			* @param Node $node
66			*
67			* @return string\|null
68			*/
69			private function getNodeName(Node $node)
70			{
71			if (method_exists($node, 'getCallee')) {
72			return $this->getNodeName($node->getCallee());
			0 ignored issues – show Bug introduced 2019-03-25 14:49 UTC by Report Bug Copy Issue Report It seems like you code against a specific sub-type and not the parent class `Peast\Syntax\Node\Node` as the method `getCallee()` does only exist in the following sub-classes of `Peast\Syntax\Node\Node`: `Peast\Syntax\Node\CallExpression`, `Peast\Syntax\Node\NewExpression`. 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...
73			}
74
75			if ($node instanceof MemberExpression && $node->getProperty() instanceof Node) {
76			return $this->getNodeName($node->getProperty());
77			}
78
79			if (method_exists($node, 'getName')) {
80			return $node->getName();
			0 ignored issues – show Bug introduced 2019-03-25 14:49 UTC by Report Bug Copy Issue Report It seems like you code against a specific sub-type and not the parent class `Peast\Syntax\Node\Node` as the method `getName()` does only exist in the following sub-classes of `Peast\Syntax\Node\Node`: `Peast\Syntax\Node\Identifier`, `Peast\Syntax\Node\JSX\JSXAttribute`, `Peast\Syntax\Node\JSX\JSXBoundaryElement`, `Peast\Syntax\Node\JSX\JSXClosingElement`, `Peast\Syntax\Node\JSX\JSXIdentifier`, `Peast\Syntax\Node\JSX\JSXNamespacedName`, `Peast\Syntax\Node\JSX\JSXOpeningElement`. 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...
81			}
82
83			return null;
84			}
85
86			/**
87			* Returns the starting line number of given $node.
88			*
89			* @param Node $node
90			*
91			* @return int
92			*/
93			private function getStartingLineNumber(Node $node)
94			{
95			return $node->getLocation()->getStart()->getLine();
96			}
97
98			/**
99			* Returns an array of arguments for given $node.
100			*
101			* @param Node $node
102			*
103			* @return array
104			*/
105			private function getArguments(Node $node)
106			{
107			return array_map(function($argument) {
108			return $this->getArgumentValue($argument);
109			}, $node->getArguments());
			0 ignored issues – show Bug introduced 2019-03-25 14:49 UTC by Report Bug Copy Issue Report It seems like you code against a specific sub-type and not the parent class `Peast\Syntax\Node\Node` as the method `getArguments()` does only exist in the following sub-classes of `Peast\Syntax\Node\Node`: `Peast\Syntax\Node\CallExpression`, `Peast\Syntax\Node\NewExpression`. 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...
110			}
111
112			/**
113			* Returns argument value of given $node.
114			*
115			* @param Node $node
116			*
117			* @return string\|null
118			*/
119			private function getArgumentValue(Node $node)
120			{
121			if ($node->getType() === 'Literal') {
122			return $node->getValue();
			0 ignored issues – show Bug introduced 2019-03-25 14:49 UTC by Report Bug Copy Issue Report It seems like you code against a specific sub-type and not the parent class `Peast\Syntax\Node\Node` as the method `getValue()` does only exist in the following sub-classes of `Peast\Syntax\Node\Node`: `Peast\Syntax\Node\AssignmentProperty`, `Peast\Syntax\Node\BooleanLiteral`, `Peast\Syntax\Node\JSX\JSXAttribute`, `Peast\Syntax\Node\JSX\JSXText`, `Peast\Syntax\Node\Literal`, `Peast\Syntax\Node\MethodDefinition`, `Peast\Syntax\Node\NullLiteral`, `Peast\Syntax\Node\NumericLiteral`, `Peast\Syntax\Node\Property`, `Peast\Syntax\Node\RegExpLiteral`, `Peast\Syntax\Node\StringLiteral`, `Peast\Syntax\Node\TemplateElement`. 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...
123			}
124
125			return null;
126			}
127			}
128

oscarotero / Gettext

Pull Request — master (#201)

JsFunctionsScanner::isCallExpression() A

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