AsyncTableGenerator::locateClassloader() - Code Metrics - Inspection of "Generated Async Table classes" - WyriHaximus/cakephp-async-orm - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#5)

by Cees-Jan

created 2017-01-23 16:07 UTC

AsyncTableGenerator::locateClassloader() A

↳ Parent: AsyncTableGenerator

Complexity

Conditions	3
Paths	3

Size

Total Lines	13
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	3.1406

Importance

Changes

Metric	Value
c	0
b	0
f	0
dl	0
loc	13
ccs	3
cts	4
cp	0.75
rs	9.4285
cc	3
eloc	8
nc	3
nop	0
crap	3.1406

<?php

namespace WyriHaximus\React\Cake\Orm;

use Cake\Datasource\EntityInterface;
use Composer\Autoload\ClassLoader;
use Doctrine\Common\Annotations\AnnotationReader;
use Generator;
use PhpParser\BuilderFactory;
use PhpParser\Node;
use PhpParser\Parser;
use PhpParser\ParserFactory;
use PhpParser\PrettyPrinter\Standard;
use ReflectionClass;
use RuntimeException;
use WyriHaximus\React\Cake\Orm\Annotations\Ignore;

final class AsyncTableGenerator
{
    const NAMESPACE_PREFIX = 'WyriHaximus\GeneratedAsyncCakeTable\\';

    /**
     * @var string
     */
    private $storageLocation;

    /**
     * @var BuilderFactory
     */
    private $factory;

    /**
     * @var Parser
     */
    private $parser;

    /**
     * @var ClassLoader
     */
    private $classLoader;

    /**
     * @var AnnotationReader
     */
    private $annotationReader;

    /**
     * @param string $storageLocation
     */
    public function __construct($storageLocation)
    {
        $this->storageLocation = $storageLocation;
        $this->factory = new BuilderFactory();
        $this->parser = (new ParserFactory)->create(ParserFactory::PREFER_PHP7);
        $this->classLoader = $this->locateClassloader();
        $this->annotationReader = new AnnotationReader();
    }

    private function locateClassloader()
    {
        foreach ([
                     dirname(__DIR__) . DS . 'vendor' . DS . 'autoload.php',
                     dirname(dirname(dirname(__DIR__))) . DS . 'autoload.php',
                 ] as $path) {
            if (file_exists($path)) {
                return require $path;
            }
        }

        throw new RuntimeException('Unable to locate class loader');
    }

    /**
     * @param string $tableClass
     * @param bool $force
     * @return GeneratedTable
     */
    public function generate($tableClass, $force = false)
    {
        $fileName = $this->classLoader->findFile($tableClass);
        $contents = file_get_contents($fileName);
        $ast = $this->parser->parse($contents);
        $namespace = static::NAMESPACE_PREFIX . $this->extractNamespace($ast);
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}

        $hashedClass = 'C' . md5($tableClass) . '_F' . md5($contents);

        $generatedTable = new GeneratedTable($namespace, $hashedClass);

        if (!$force && file_exists($this->storageLocation . DIRECTORY_SEPARATOR . $hashedClass . '.php')) {
            return $generatedTable;
        }

        $class = $this->factory->class($hashedClass)
            ->extend('BaseTable')
            ->implement('AsyncTableInterface')
        ;

        $class->addStmt(
            new Node\Stmt\TraitUse([
                new Node\Name('AsyncTable')
            ])
        );

        $class->addStmt(
            self::createMethod(
                'save',
                [
                    new Node\Param('entity', null, 'EntityInterface'),
                    new Node\Param('options', new Node\Expr\Array_()),
                ]
            )
        );

        foreach ($this->extractMethods($ast) as $method) {
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
            if (in_array($method->name, ['initialize', 'validationDefault'])) {
                continue;
            }

            if ($this->hasMethodAnnotation(new ReflectionClass($tableClass), $method->name, Ignore::class)) {
                continue;
            }

            $class->addStmt(
                self::createMethod(
                    $method->name,
                    $method->params
                )
            );
        }

        $node = $this->factory->namespace($namespace)
            ->addStmt($this->factory->use(EntityInterface::class))
            ->addStmt($this->factory->use($tableClass)->as('BaseTable'))
            ->addStmt($this->factory->use(AsyncTable::class))
            ->addStmt($this->factory->use(AsyncTableInterface::class))
            ->addStmt($class)
            ->getNode()
        ;

        $prettyPrinter = new Standard();
        file_put_contents(
            $this->storageLocation . DIRECTORY_SEPARATOR . $hashedClass . '.php',
            $prettyPrinter->prettyPrintFile([
                $node
            ]) . PHP_EOL
        );

        return $generatedTable;
    }

    protected function createMethod($method, array $params)
    {
        return $this->factory->method($method)
            ->makePublic()
            ->addParams($params)
            ->addStmt(
                new Node\Stmt\Return_(
                    new Node\Expr\MethodCall(
                        new Node\Expr\Variable('this'),
                        'callAsyncOrSync',
                        [
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
                            new Node\Scalar\String_($method),
                            new Node\Expr\Array_(
                                $this->createMethodArguments($params)
                            ),
                        ]
                    )
                )
            )
            ;
    }

    /**
     * @param array $params
     * @return array
     */
    protected function createMethodArguments(array $params)
    {
        $arguments = [];
        foreach ($params as $param) {
            if (!($param instanceof Node\Param)) {
                continue;
            }
            $arguments[] = new Node\Expr\Variable($param->name);
        }
        return $arguments;
    }

    /**
     * @param Node[] $ast
     * @return Generator
     */
    protected function extractMethods(array $ast)

    {
        foreach ($ast as $node) {
            if (!isset($node->stmts)) {
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
                continue;
            }

            foreach ($this->iterageStmts($node->stmts) as $stmt) {
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
                yield $stmt;
            }
        }
    }

    protected function iterageStmts(array $stmts)

    {
        foreach ($stmts as $stmt) {
            if ($stmt instanceof Node\Stmt\ClassMethod) {
                yield $stmt;
            }

            if (!isset($stmt->stmts)) {
                continue;
            }

            foreach ($this->iterageStmts($stmt->stmts) as $stmt) {
                yield $stmt;
            }
        }
    }

    protected function extractNamespace(array $ast)
    {
        foreach ($ast as $node) {
            if ($node instanceof Node\Stmt\Namespace_) {
                return (string)$node->name;
            }
        }

        return 'N' . uniqid('', true);
    }

    /**
     * @param ReflectionClass $reflectionClass
     * @param string $method
     * @param string $class
     * @return bool
     */
    private function hasMethodAnnotation(ReflectionClass $reflectionClass, $method, $class)
    {
        $methodReflection = $reflectionClass->getMethod($method);
        return is_a($this->annotationReader->getMethodAnnotation($methodReflection, $class), $class);
    }
}


Pull Request — master (#5)

AsyncTableGenerator::locateClassloader() A

Complexity

Size

Duplication

Code Coverage

Importance

Available Fixes

Available Fixes

1			<?php
2
3			namespace WyriHaximus\React\Cake\Orm;
4
5			use Cake\Datasource\EntityInterface;
6			use Composer\Autoload\ClassLoader;
7			use Doctrine\Common\Annotations\AnnotationReader;
8			use Generator;
9			use PhpParser\BuilderFactory;
10			use PhpParser\Node;
11			use PhpParser\Parser;
12			use PhpParser\ParserFactory;
13			use PhpParser\PrettyPrinter\Standard;
14			use ReflectionClass;
15			use RuntimeException;
16			use WyriHaximus\React\Cake\Orm\Annotations\Ignore;
17
18			final class AsyncTableGenerator
19			{
20			const NAMESPACE_PREFIX = 'WyriHaximus\GeneratedAsyncCakeTable\\';
21
22			/**
23			* @var string
24			*/
25			private $storageLocation;
26
27			/**
28			* @var BuilderFactory
29			*/
30			private $factory;
31
32			/**
33			* @var Parser
34			*/
35			private $parser;
36
37			/**
38			* @var ClassLoader
39			*/
40			private $classLoader;
41
42	1		/**
43			* @var AnnotationReader
44	1		*/
45	1		private $annotationReader;
46	1
47	1		/**
48	1		* @param string $storageLocation
49			*/
50	1		public function __construct($storageLocation)
51			{
52			$this->storageLocation = $storageLocation;
53	1		$this->factory = new BuilderFactory();
54	1		$this->parser = (new ParserFactory)->create(ParserFactory::PREFER_PHP7);
55			$this->classLoader = $this->locateClassloader();
56	1		$this->annotationReader = new AnnotationReader();
57	1		}
58
59			private function locateClassloader()
60			{
61			foreach ([
62			dirname(__DIR__) . DS . 'vendor' . DS . 'autoload.php',
63			dirname(dirname(dirname(__DIR__))) . DS . 'autoload.php',
64			] as $path) {
65			if (file_exists($path)) {
66			return require $path;
67			}
68	1		}
69
70	1		throw new RuntimeException('Unable to locate class loader');
71	1		}
72	1
73	1		/**
74			* @param string $tableClass
75	1		* @param bool $force
76			* @return GeneratedTable
77	1		*/
78			public function generate($tableClass, $force = false)
79	1		{
80			$fileName = $this->classLoader->findFile($tableClass);
81			$contents = file_get_contents($fileName);
82			$ast = $this->parser->parse($contents);
83	1		$namespace = static::NAMESPACE_PREFIX . $this->extractNamespace($ast);
			0 ignored issues – show Bug introduced 2016-10-15 11:39 UTC by Report Bug Copy Issue Report It seems like `$ast` defined by `$this->parser->parse($contents)` on line `82` can also be of type `null`; however, `WyriHaximus\React\Cake\O...tor::extractNamespace()` does only seem to accept `array`, maybe add an additional type check? If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check: /** * @return array\|string */ function returnsDifferentValues($x) { if ($x) { return 'foo'; } return array(); } $x = returnsDifferentValues($y); if (is_array($x)) { // $x is an array. } If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue. Loading history...
84	1
85	1		$hashedClass = 'C' . md5($tableClass) . '_F' . md5($contents);
86
87			$generatedTable = new GeneratedTable($namespace, $hashedClass);
88	1
89	1		if (!$force && file_exists($this->storageLocation . DIRECTORY_SEPARATOR . $hashedClass . '.php')) {
90	1		return $generatedTable;
91			}
92
93			$class = $this->factory->class($hashedClass)
94	1		->extend('BaseTable')
95	1		->implement('AsyncTableInterface')
96	1		;
97
98	1		$class->addStmt(
99	1		new Node\Stmt\TraitUse([
100			new Node\Name('AsyncTable')
101			])
102			);
103
104	1		$class->addStmt(
105	1		self::createMethod(
106	1		'save',
107	1		[
108	1		new Node\Param('entity', null, 'EntityInterface'),
109			new Node\Param('options', new Node\Expr\Array_()),
110			]
111			)
112			);
113	1
114	1		foreach ($this->extractMethods($ast) as $method) {
			0 ignored issues – show Bug introduced 2016-10-14 20:53 UTC by Report Bug Copy Issue Report It seems like `$ast` defined by `$this->parser->parse($contents)` on line `82` can also be of type `null`; however, `WyriHaximus\React\Cake\O...rator::extractMethods()` does only seem to accept `array<integer,object<PhpParser\Node>>`, maybe add an additional type check? If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check: /** * @return array\|string */ function returnsDifferentValues($x) { if ($x) { return 'foo'; } return array(); } $x = returnsDifferentValues($y); if (is_array($x)) { // $x is an array. } If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue. Loading history...
115	1		if (in_array($method->name, ['initialize', 'validationDefault'])) {
116	1		continue;
117	1		}
118	1
119	1		if ($this->hasMethodAnnotation(new ReflectionClass($tableClass), $method->name, Ignore::class)) {
120			continue;
121			}
122	1
123	1		$class->addStmt(
124	1		self::createMethod(
125	1		$method->name,
126	1		$method->params
127	1		)
128			);
129			}
130	1
131			$node = $this->factory->namespace($namespace)
132			->addStmt($this->factory->use(EntityInterface::class))
133	1		->addStmt($this->factory->use($tableClass)->as('BaseTable'))
134			->addStmt($this->factory->use(AsyncTable::class))
135	1		->addStmt($this->factory->use(AsyncTableInterface::class))
136	1		->addStmt($class)
137	1		->getNode()
138	1		;
139	1
140	1		$prettyPrinter = new Standard();
141	1		file_put_contents(
142	1		$this->storageLocation . DIRECTORY_SEPARATOR . $hashedClass . '.php',
143			$prettyPrinter->prettyPrintFile([
144	1		$node
145	1		]) . PHP_EOL
146	1		);
147
148			return $generatedTable;
149			}
150
151			protected function createMethod($method, array $params)
152			{
153			return $this->factory->method($method)
154			->makePublic()
155			->addParams($params)
156			->addStmt(
157			new Node\Stmt\Return_(
158			new Node\Expr\MethodCall(
159	1		new Node\Expr\Variable('this'),
160			'callAsyncOrSync',
161	1		[
			0 ignored issues – show Documentation introduced 2016-10-14 18:24 UTC by Report Bug Copy Issue Report `array(new \PhpParser\Nod...hodArguments($params)))` is of type `array<integer,object<Php...\Node\\Expr\\Array_>"}>`, but the function expects a `array<integer,object<PhpParser\Node\Arg>>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
162	1		new Node\Scalar\String_($method),
163	1		new Node\Expr\Array_(
164			$this->createMethodArguments($params)
165			),
166	1		]
167			)
168	1		)
169			)
170			;
171			}
172
173			/**
174			* @param array $params
175	1		* @return array
176			*/
177	1		protected function createMethodArguments(array $params)
178	1		{
179			$arguments = [];
180			foreach ($params as $param) {
181			if (!($param instanceof Node\Param)) {
182	1		continue;
183	1		}
184			$arguments[] = new Node\Expr\Variable($param->name);
185			}
186	1		return $arguments;
187			}
188	1
189			/**
190	1		* @param Node[] $ast
191	1		* @return Generator
192	1		*/
193		View Code Duplication	protected function extractMethods(array $ast)
			0 ignored issues – show Duplication introduced 2016-10-14 20:53 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
194			{
195	1		foreach ($ast as $node) {
196	1		if (!isset($node->stmts)) {
			0 ignored issues – show Bug introduced 2016-10-14 18:24 UTC by Report Bug Copy Issue Report Accessing `stmts` on the interface `PhpParser\Node` suggest that you code against a concrete implementation. How about adding an `instanceof` check? If you access a property on an interface, you most likely code against a concrete implementation of the interface. Available Fixes Adding an additional type check: interface SomeInterface { } class SomeClass implements SomeInterface { public $a; } function someFunction(SomeInterface $object) { if ($object instanceof SomeClass) { $a = $object->a; } } Changing the type hint: interface SomeInterface { } class SomeClass implements SomeInterface { public $a; } function someFunction(SomeClass $object) { $a = $object->a; } Loading history...
197			continue;
198			}
199	1
200	1		foreach ($this->iterageStmts($node->stmts) as $stmt) {
			0 ignored issues – show Bug introduced 2016-10-14 18:24 UTC by Report Bug Copy Issue Report Accessing `stmts` on the interface `PhpParser\Node` suggest that you code against a concrete implementation. How about adding an `instanceof` check? If you access a property on an interface, you most likely code against a concrete implementation of the interface. Available Fixes Adding an additional type check: interface SomeInterface { } class SomeClass implements SomeInterface { public $a; } function someFunction(SomeInterface $object) { if ($object instanceof SomeClass) { $a = $object->a; } } Changing the type hint: interface SomeInterface { } class SomeClass implements SomeInterface { public $a; } function someFunction(SomeClass $object) { $a = $object->a; } Loading history...
201			yield $stmt;
202			}
203	1		}
204			}
205	1
206		View Code Duplication	protected function iterageStmts(array $stmts)
			0 ignored issues – show Duplication introduced 2016-10-14 20:53 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
207	1		{
208	1		foreach ($stmts as $stmt) {
209	1		if ($stmt instanceof Node\Stmt\ClassMethod) {
210			yield $stmt;
211			}
212
213			if (!isset($stmt->stmts)) {
214			continue;
215			}
216
217			foreach ($this->iterageStmts($stmt->stmts) as $stmt) {
218			yield $stmt;
219			}
220			}
221			}
222
223			protected function extractNamespace(array $ast)
224			{
225			foreach ($ast as $node) {
226			if ($node instanceof Node\Stmt\Namespace_) {
227			return (string)$node->name;
228			}
229			}
230
231			return 'N' . uniqid('', true);
232			}
233
234			/**
235			* @param ReflectionClass $reflectionClass
236			* @param string $method
237			* @param string $class
238			* @return bool
239			*/
240			private function hasMethodAnnotation(ReflectionClass $reflectionClass, $method, $class)
241			{
242			$methodReflection = $reflectionClass->getMethod($method);
243			return is_a($this->annotationReader->getMethodAnnotation($methodReflection, $class), $class);
244			}
245			}
246

WyriHaximus / cakephp-async-orm

Pull Request — master (#5)

AsyncTableGenerator::locateClassloader() A

Complexity

Size

Duplication

Code Coverage

Importance

Available Fixes

Available Fixes

Duplication Side-by-Side

Filter issues like