functions.php ➔ is_stringable() - Code Metrics - Inspection of "Smarter function arguments scoping (#228)" - humbug/php-scoper - Measure and Improve Code Quality continuously with Scrutinizer

Test Setup Failed

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by Théo

created 2018-06-26 22:51 UTC

functions.php ➔ is_stringable() A

↳ Parent: Project

Complexity

Conditions	6
Paths	9

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	6
nc	9
nop	1
dl	0
loc	10
rs	9.2222
c	0
b	0
f	0

<?php

declare(strict_types=1);

/*
 * This file is part of the humbug/php-scoper package.
 *
 * Copyright (c) 2017 Théo FIDRY <[email protected]>,
 *                    Pádraic Brady <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Humbug\PhpScoper;

use Humbug\PhpScoper\Console\Application;
use Humbug\PhpScoper\Console\Command\AddPrefixCommand;
use Humbug\PhpScoper\Console\Command\InitCommand;
use Humbug\PhpScoper\PhpParser\TraverserFactory;
use Humbug\PhpScoper\Scoper\Composer\InstalledPackagesScoper;
use Humbug\PhpScoper\Scoper\Composer\JsonFileScoper;
use Humbug\PhpScoper\Scoper\NullScoper;
use Humbug\PhpScoper\Scoper\PatchScoper;
use Humbug\PhpScoper\Scoper\PhpScoper;
use Iterator;
use PackageVersions\Versions;
use PhpParser\Node;
use PhpParser\Node\Identifier;
use PhpParser\Node\Name;
use PhpParser\Parser;
use PhpParser\ParserFactory;
use Roave\BetterReflection\Reflector\ClassReflector;
use Roave\BetterReflection\Reflector\FunctionReflector;
use Roave\BetterReflection\SourceLocator\Ast\Locator;
use Roave\BetterReflection\SourceLocator\Type\MemoizingSourceLocator;
use Roave\BetterReflection\SourceLocator\Type\PhpInternalSourceLocator;
use Symfony\Component\Console\Application as SymfonyApplication;
use Symfony\Component\Filesystem\Filesystem;
use function is_object;
use function is_string;
use function method_exists;

// TODO: register this file to the list of functions if possible to be autoloaded

/**
 * @private
 */
function create_application(): SymfonyApplication
{
    $app = new Application('PHP Scoper', get_version());

    $app->addCommands([
        new AddPrefixCommand(
            new Filesystem(),
            create_scoper()
        ),
        new InitCommand(),
    ]);

    return $app;
}

/**
 * @private
 */
function get_version(): string
{
    $rawVersion = Versions::getVersion('humbug/php-scoper');

    list($prettyVersion, $commitHash) = explode('@', $rawVersion);

    return (1 === preg_match('/9{7}/', $prettyVersion)) ? $commitHash : $prettyVersion;
}

/**
 * @private
 */
function create_scoper(): Scoper
{
    return new PatchScoper(
        new PhpScoper(
            create_parser(),
            new JsonFileScoper(
                new InstalledPackagesScoper(
                    new NullScoper()
                )
            ),
            new TraverserFactory(create_reflector())
        )
    );
}

/**
 * @private
 */
function create_parser(): Parser
{
    return (new ParserFactory())->create(ParserFactory::ONLY_PHP7);
}

function create_reflector(): Reflector
{
    $phpParser = create_parser();
    $astLocator = new Locator($phpParser);

    $sourceLocator = new MemoizingSourceLocator(
        new PhpInternalSourceLocator($astLocator)
    );
    $classReflector = new ClassReflector($sourceLocator);

    return new Reflector(
        $classReflector,
        new FunctionReflector($sourceLocator, $classReflector)
    );
}

/**
 * @param string[] $paths Absolute paths
 *
 * @return string
 */
function get_common_path(array $paths): string
{
    if (0 === count($paths)) {
        return '';
    }

    $lastOffset = 1;
    $common = DIRECTORY_SEPARATOR;

    while (false !== ($index = strpos($paths[0], DIRECTORY_SEPARATOR, $lastOffset))) {
        $dirLen = $index - $lastOffset + 1;
        $dir = substr($paths[0], $lastOffset, $dirLen);

        foreach ($paths as $path) {
            if (substr($path, $lastOffset, $dirLen) !== $dir) {
                if (0 < strlen($common) && DIRECTORY_SEPARATOR === $common[strlen($common) - 1]) {
                    $common = substr($common, 0, strlen($common) - 1);
                }

                return $common;
            }
        }

        $common .= $dir;
        $lastOffset = $index + 1;
    }

    $common = substr($common, 0, -1);

    if (0 < strlen($common) && DIRECTORY_SEPARATOR === $common[strlen($common) - 1]) {
        $common = substr($common, 0, strlen($common) - 1);
    }

    return $common;
}

/**
 * In-house clone functions. Does a partial clone that should be enough to provide the immutability required in some
 * places for the scoper. It however does not guarantee a deep cloning as would be horribly slow for no good reasons.
 * A better alternative would be to find a way to push immutability upstream in PHP-Parser directly.
 *
 * @param Node $node
 *
 * @return Node
 */
function clone_node(Node $node): Node
{
    $clone = deep_clone($node);

    foreach ($node->getAttributes() as $key => $attribute) {
        $clone->setAttribute($key, $attribute);
    }

    return $clone;
}

/**
 * @param mixed $node
 *
 * @return mixed
 *
 * @internal
 */
function deep_clone($node)
{
    if (is_array($node)) {
        return array_map(__FUNCTION__, $node);
    }

    if (null === $node || is_scalar($node)) {
        return $node;
    }

    return unserialize(serialize($node));
}

function chain(iterable ...$iterables): Iterator
{
    foreach ($iterables as $iterable) {
        foreach ($iterable as $key => $value) {
            yield $key => $value;
        }
    }
}

function is_stringable($value): bool
{
    return
        null === $value
        || is_string($value)
        || $value instanceof Name
        || $value instanceof Identifier
        || (is_object($value) && method_exists($value, '__toString'))
    ;
}


1		<?php
2
3		declare(strict_types=1);
4
5		/*
6		* This file is part of the humbug/php-scoper package.
7		*
8		* Copyright (c) 2017 Théo FIDRY <[email protected]>,
9		* Pádraic Brady <[email protected]>
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 Humbug\PhpScoper;
16
17		use Humbug\PhpScoper\Console\Application;
18		use Humbug\PhpScoper\Console\Command\AddPrefixCommand;
19		use Humbug\PhpScoper\Console\Command\InitCommand;
20		use Humbug\PhpScoper\PhpParser\TraverserFactory;
21		use Humbug\PhpScoper\Scoper\Composer\InstalledPackagesScoper;
22		use Humbug\PhpScoper\Scoper\Composer\JsonFileScoper;
23		use Humbug\PhpScoper\Scoper\NullScoper;
24		use Humbug\PhpScoper\Scoper\PatchScoper;
25		use Humbug\PhpScoper\Scoper\PhpScoper;
26		use Iterator;
27		use PackageVersions\Versions;
28		use PhpParser\Node;
29		use PhpParser\Node\Identifier;
30		use PhpParser\Node\Name;
31		use PhpParser\Parser;
32		use PhpParser\ParserFactory;
33		use Roave\BetterReflection\Reflector\ClassReflector;
34		use Roave\BetterReflection\Reflector\FunctionReflector;
35		use Roave\BetterReflection\SourceLocator\Ast\Locator;
36		use Roave\BetterReflection\SourceLocator\Type\MemoizingSourceLocator;
37		use Roave\BetterReflection\SourceLocator\Type\PhpInternalSourceLocator;
38		use Symfony\Component\Console\Application as SymfonyApplication;
39		use Symfony\Component\Filesystem\Filesystem;
40		use function is_object;
41		use function is_string;
42		use function method_exists;
43
44		// TODO: register this file to the list of functions if possible to be autoloaded
45
46		/**
47		* @private
48		*/
49		function create_application(): SymfonyApplication
50		{
51		$app = new Application('PHP Scoper', get_version());
52
53		$app->addCommands([
54		new AddPrefixCommand(
55		new Filesystem(),
56		create_scoper()
57		),
58		new InitCommand(),
59		]);
60
61		return $app;
62		}
63
64		/**
65		* @private
66		*/
67		function get_version(): string
68		{
69		$rawVersion = Versions::getVersion('humbug/php-scoper');
70
71		list($prettyVersion, $commitHash) = explode('@', $rawVersion);
72
73		return (1 === preg_match('/9{7}/', $prettyVersion)) ? $commitHash : $prettyVersion;
74		}
75
76		/**
77		* @private
78		*/
79		function create_scoper(): Scoper
80		{
81		return new PatchScoper(
82		new PhpScoper(
83		create_parser(),
84		new JsonFileScoper(
85		new InstalledPackagesScoper(
86		new NullScoper()
87		)
88		),
89		new TraverserFactory(create_reflector())
90		)
91		);
92		}
93
94		/**
95		* @private
96		*/
97		function create_parser(): Parser
98		{
99		return (new ParserFactory())->create(ParserFactory::ONLY_PHP7);
100		}
101
102		function create_reflector(): Reflector
103		{
104		$phpParser = create_parser();
105		$astLocator = new Locator($phpParser);
106
107		$sourceLocator = new MemoizingSourceLocator(
108		new PhpInternalSourceLocator($astLocator)
109		);
110		$classReflector = new ClassReflector($sourceLocator);
111
112		return new Reflector(
113		$classReflector,
114		new FunctionReflector($sourceLocator, $classReflector)
115		);
116		}
117
118		/**
119		* @param string[] $paths Absolute paths
120		*
121		* @return string
122		*/
123		function get_common_path(array $paths): string
124		{
125		if (0 === count($paths)) {
126		return '';
127		}
128
129		$lastOffset = 1;
130		$common = DIRECTORY_SEPARATOR;
131
132		while (false !== ($index = strpos($paths[0], DIRECTORY_SEPARATOR, $lastOffset))) {
133		$dirLen = $index - $lastOffset + 1;
134		$dir = substr($paths[0], $lastOffset, $dirLen);
135
136		foreach ($paths as $path) {
137		if (substr($path, $lastOffset, $dirLen) !== $dir) {
138	View Code Duplication	if (0 < strlen($common) && DIRECTORY_SEPARATOR === $common[strlen($common) - 1]) {
139		$common = substr($common, 0, strlen($common) - 1);
140		}
141
142		return $common;
143		}
144		}
145
146		$common .= $dir;
147		$lastOffset = $index + 1;
148		}
149
150		$common = substr($common, 0, -1);
151
152	View Code Duplication	if (0 < strlen($common) && DIRECTORY_SEPARATOR === $common[strlen($common) - 1]) {
153		$common = substr($common, 0, strlen($common) - 1);
154		}
155
156		return $common;
157		}
158
159		/**
160		* In-house clone functions. Does a partial clone that should be enough to provide the immutability required in some
161		* places for the scoper. It however does not guarantee a deep cloning as would be horribly slow for no good reasons.
162		* A better alternative would be to find a way to push immutability upstream in PHP-Parser directly.
163		*
164		* @param Node $node
165		*
166		* @return Node
167		*/
168		function clone_node(Node $node): Node
169		{
170		$clone = deep_clone($node);
171
172		foreach ($node->getAttributes() as $key => $attribute) {
173		$clone->setAttribute($key, $attribute);
174		}
175
176		return $clone;
177		}
178
179		/**
180		* @param mixed $node
181		*
182		* @return mixed
183		*
184		* @internal
185		*/
186		function deep_clone($node)
187		{
188		if (is_array($node)) {
189		return array_map(__FUNCTION__, $node);
190		}
191
192		if (null === $node \|\| is_scalar($node)) {
193		return $node;
194		}
195
196		return unserialize(serialize($node));
197		}
198
199		function chain(iterable ...$iterables): Iterator
200		{
201		foreach ($iterables as $iterable) {
202		foreach ($iterable as $key => $value) {
203		yield $key => $value;
204		}
205		}
206		}
207
208		function is_stringable($value): bool
209		{
210		return
211		null === $value
212		\|\| is_string($value)
213		\|\| $value instanceof Name
214		\|\| $value instanceof Identifier
215		\|\| (is_object($value) && method_exists($value, '__toString'))
216		;
217		}
218

humbug / php-scoper

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functions.php ➔ is_stringable() A

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