NameStmtPrefixer::doesNameBelongToUseStatement() - Code Metrics - Inspection of "Fix phpstan errors" - humbug/php-scoper - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#501)

by Théo

created 2021-06-15 21:53 UTC

NameStmtPrefixer::doesNameBelongToUseStatement() C

↳ Parent: NameStmtPrefixer

Complexity

Conditions	12
Paths	7

Size

Total Lines	63
Code Lines	25

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	156

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
cc	12
eloc	25
c	2
b	0
f	0
nc	7
nop	5
dl	0
loc	63
ccs	0
cts	0
cp	0
crap	156
rs	6.9666

How to fix Long Method Complexity

<?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\PhpParser\NodeVisitor;

use Humbug\PhpScoper\PhpParser\Node\FullyQualifiedFactory;
use Humbug\PhpScoper\PhpParser\NodeVisitor\NamespaceStmt\NamespaceStmtCollection;
use Humbug\PhpScoper\PhpParser\NodeVisitor\Resolver\FullyQualifiedNameResolver;
use Humbug\PhpScoper\PhpParser\NodeVisitor\UseStmt\UseStmtCollection;
use Humbug\PhpScoper\Reflector;
use Humbug\PhpScoper\Whitelist;
use PhpParser\Node;
use PhpParser\Node\Expr\ArrowFunction;
use PhpParser\Node\Expr\ClassConstFetch;
use PhpParser\Node\Expr\ConstFetch;
use PhpParser\Node\Expr\FuncCall;
use PhpParser\Node\Expr\Instanceof_;
use PhpParser\Node\Expr\New_;
use PhpParser\Node\Expr\StaticCall;
use PhpParser\Node\Expr\StaticPropertyFetch;
use PhpParser\Node\Name;
use PhpParser\Node\Name\FullyQualified;
use PhpParser\Node\NullableType;
use PhpParser\Node\Param;
use PhpParser\Node\Stmt\Catch_;
use PhpParser\Node\Stmt\Class_;
use PhpParser\Node\Stmt\ClassMethod;
use PhpParser\Node\Stmt\Function_;
use PhpParser\Node\Stmt\Interface_;
use PhpParser\Node\Stmt\Property;
use PhpParser\Node\Stmt\TraitUse;
use PhpParser\Node\Stmt\TraitUseAdaptation\Alias;
use PhpParser\Node\Stmt\TraitUseAdaptation\Precedence;
use PhpParser\Node\Stmt\Use_;
use PhpParser\Node\Stmt\UseUse;
use PhpParser\NodeVisitorAbstract;
use function count;
use function in_array;
use function strtolower;

/**
 * Prefixes names when appropriate.
 *
 * ```
 * new Foo\Bar();
 * ```.
 *
 * =>
 *
 * ```
 * new \Humbug\Foo\Bar();
 * ```
 *
 * @private
 */
final class NameStmtPrefixer extends NodeVisitorAbstract
{
    public const PHP_SPECIAL_KEYWORDS = [
        'self',
        'static',
        'parent',
    ];

    private string $prefix;
    private Whitelist $whitelist;
    private NamespaceStmtCollection $namespaceStatements;
    private UseStmtCollection $useStatements;
    private FullyQualifiedNameResolver $nameResolver;
    private Reflector $reflector;

    public function __construct(
        string $prefix,
        Whitelist $whitelist,
        NamespaceStmtCollection $namespaceStatements,
        UseStmtCollection $useStatements,
        FullyQualifiedNameResolver $nameResolver,
        Reflector $reflector
    ) {
        $this->prefix = $prefix;
        $this->whitelist = $whitelist;
        $this->namespaceStatements = $namespaceStatements;
        $this->useStatements = $useStatements;
        $this->nameResolver = $nameResolver;
        $this->reflector = $reflector;
    }

    public function enterNode(Node $node): Node
    {
        if (!($node instanceof Name)) {
            return $node;
        }

        $parent = self::findParent($node);

        return null !== $parent
            ? $this->prefixName($node, $parent)
            : $node;
    }

    private static function findParent(Node $name): ?Node
    {
        $parent = ParentNodeAppender::findParent($name);

        if (null === $parent) {
            return $parent;
        }

        if (!($parent instanceof NullableType)) {
            return $parent;
        }

        return self::findParent($parent);
    }

    private function prefixName(Name $resolvedName, Node $parentNode): Node
    {
        if (false === (
            $parentNode instanceof Alias
            || $parentNode instanceof ArrowFunction
            || $parentNode instanceof Catch_
            || $parentNode instanceof ConstFetch
            || $parentNode instanceof Class_
            || $parentNode instanceof ClassConstFetch
            || $parentNode instanceof ClassMethod
            || $parentNode instanceof FuncCall
            || $parentNode instanceof Function_
            || $parentNode instanceof Instanceof_
            || $parentNode instanceof Interface_
            || $parentNode instanceof New_
            || $parentNode instanceof Param
            || $parentNode instanceof Precedence
            || $parentNode instanceof Property
            || $parentNode instanceof StaticCall
            || $parentNode instanceof StaticPropertyFetch
            || $parentNode instanceof TraitUse
        )
        ) {
            return $resolvedName;
        }

        if (
            (
                $parentNode instanceof Catch_
                || $parentNode instanceof ClassConstFetch
                || $parentNode instanceof New_
                || $parentNode instanceof FuncCall
                || $parentNode instanceof Instanceof_
                || $parentNode instanceof Param
                || $parentNode instanceof Property
                || $parentNode instanceof StaticCall
                || $parentNode instanceof StaticPropertyFetch
            )
            && in_array((string) $resolvedName, self::PHP_SPECIAL_KEYWORDS, true)
        ) {
            return $resolvedName;
        }

        $originalName = OriginalNameResolver::getOriginalName($resolvedName);

        if ($parentNode instanceof ConstFetch && 'null' === $originalName->toLowerString()) {
            return $originalName;
        }

        // Do not prefix if there is a matching use statement.
        $useStatement = $this->useStatements->findStatementForNode(
            $this->namespaceStatements->findNamespaceForNode($resolvedName),
            $resolvedName,
        );

        if (
            self::doesNameBelongToUseStatement(
                $originalName,
                $resolvedName,
                $parentNode,
                $useStatement,
                $this->whitelist,
            )
        ) {
            return $originalName;
        }

        if ($resolvedName instanceof FullyQualified
            && (
                $this->prefix === $resolvedName->getFirst() // Skip if is already prefixed
                || $this->whitelist->belongsToWhitelistedNamespace((string) $resolvedName)  // Skip if the namespace node is whitelisted
            )
        ) {
            return $resolvedName;
        }

        // Do not prefix if the Name is inside of the current namespace
        $currentNamespace = $this->namespaceStatements->getCurrentNamespaceName();

        if (
            self::doesNameBelongToNamespace(
                $originalName,
                $resolvedName,
                $currentNamespace,
            )
            || (
                // In the global scope
                $currentNamespace === null
                && $originalName->parts === $resolvedName->parts
                && !($originalName instanceof FullyQualified)
                && !($parentNode instanceof ConstFetch)
                && $resolvedName instanceof FullyQualified
                && !$this->whitelist->isSymbolWhitelisted($resolvedName->toString())
                && !$this->reflector->isFunctionInternal($resolvedName->toString())
                && !$this->reflector->isClassInternal($resolvedName->toString())
            )
        ) {
            return $originalName;
        }

        // Check if the class can be prefixed
        if (!($parentNode instanceof ConstFetch || $parentNode instanceof FuncCall)
            && $resolvedName instanceof FullyQualified
            && $this->reflector->isClassInternal($resolvedName->toString())
        ) {
            return $resolvedName;
        }

        if ($parentNode instanceof ConstFetch) {
            if ($this->whitelist->isSymbolWhitelisted($resolvedName->toString(), true)) {
                return $resolvedName;
            }

            if ($this->reflector->isConstantInternal($resolvedName->toString())) {
                return new FullyQualified($resolvedName->toString(), $resolvedName->getAttributes());
            }

            // Constants have an autoloading fallback so we cannot prefix them when the name is ambiguous
            // See https://wiki.php.net/rfc/fallback-to-root-scope-deprecation
            if (false === ($resolvedName instanceof FullyQualified)) {
                return $resolvedName;
            }

            if ($this->whitelist->isGlobalWhitelistedConstant((string) $resolvedName)) {
                // Unlike classes & functions, whitelisted are not prefixed with aliases registered in scoper-autoload.php
                return new FullyQualified($resolvedName->toString(), $resolvedName->getAttributes());
            }

            // Continue
        }

        // Functions have a fallback auto-loading so we cannot prefix them when the name is ambiguous
        // See https://wiki.php.net/rfc/fallback-to-root-scope-deprecation
        if ($parentNode instanceof FuncCall) {
            if ($this->reflector->isFunctionInternal($originalName->toString())) {
                return new FullyQualified(
                    $originalName->toString(),
                    $originalName->getAttributes(),
                );
            }

            if (!($resolvedName instanceof FullyQualified)) {
                return $resolvedName;
            }
        }

        if ($parentNode instanceof ClassMethod && $resolvedName->isSpecialClassName()) {
            return $resolvedName;
        }

        return FullyQualifiedFactory::concat(
            $this->prefix,
            $resolvedName->toString(),
            $resolvedName->getAttributes()
        );
    }

    /**
     * @param string[] $array
     * @param string[] $start
     */
    private static function arrayStartsWith(array $array, array $start): bool
    {
        $prefixLength = count($start);

        for ($index = 0; $index < $prefixLength; ++$index) {
            if ($array[$index] !== $start[$index]) {
                return false;
            }
        }

        return true;
    }

    private static function doesNameBelongToNamespace(
        Name $originalName,
        Name $resolvedName,
        ?Name $namespace
    ): bool
    {
        if (
            $namespace === null
            || !($resolvedName instanceof FullyQualified)
            // In case the original name is a FQ, we do not skip the prefixing
            // and keep it as FQ
            || $originalName instanceof FullyQualified
        ) {
            return false;
        }

        $originalNameFQParts = [
            ...$namespace->parts,
            ...$originalName->parts,
        ];

        return $originalNameFQParts === $resolvedName->parts;
    }

    private static function doesNameBelongToUseStatement(
        Name $originalName,
        Name $resolvedName,
        Node $parentNode,
        ?Name $useStatementName,
        Whitelist $whitelist
    ): bool
    {
        if (
            null === $useStatementName
            || !($resolvedName instanceof FullyQualified)
            // In case the original name is a FQ, we do not skip the prefixing
            // and keep it as FQ
            || $originalName instanceof FullyQualified
            // TODO: review Isolated Finder support
            || $resolvedName->parts === ['Isolated', 'Symfony', 'Component', 'Finder', 'Finder']
            || !self::arrayStartsWith($resolvedName->parts, $useStatementName->parts)
        ) {
            return false;
        }

        if ($parentNode instanceof ConstFetch) {
            // If a constant is whitelisted, it can be that letting a non FQ breaks
            // things. For example the whitelisted namespaced constant could be
            // used via a partial import (in which case it is a regular import not
            // a constant one) which may not be prefixed.
            // For this reason in this scenario we will always transform the
            // constant in a FQ one.
            // Note that this could be adjusted based on the type of the use
            // statement but that requires further changes as at this point we
            // only have the use statement name.
            // TODO: review this statement also check use aliases with constants or functions
            if ($whitelist->isGlobalWhitelistedConstant($resolvedName->toString())
                || $whitelist->isSymbolWhitelisted($resolvedName->toString(), true)
            ) {
                return false;
            }

            return null !== $useStatementName;
        }

        $useStatementParent = ParentNodeAppender::getParent($useStatementName);

        if (!($useStatementParent instanceof UseUse)) {
            return false;
        }

        $useStatementAlias = $useStatementParent->alias;

        if (null === $useStatementAlias) {
            return true;
        }

        // Classes and namespaces usages are case-insensitive
        $caseSensitiveUseStmt = !in_array(
            $useStatementParent->type,
            [Use_::TYPE_UNKNOWN, Use_::TYPE_NORMAL],
            true,
        );

        return $caseSensitiveUseStmt
            ? $originalName->getFirst() === $useStatementAlias->toString()
            : strtolower($originalName->getFirst()) === $useStatementAlias->toLowerString();
    }
}


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\PhpParser\NodeVisitor;
16
17		use Humbug\PhpScoper\PhpParser\Node\FullyQualifiedFactory;
18		use Humbug\PhpScoper\PhpParser\NodeVisitor\NamespaceStmt\NamespaceStmtCollection;
19		use Humbug\PhpScoper\PhpParser\NodeVisitor\Resolver\FullyQualifiedNameResolver;
20		use Humbug\PhpScoper\PhpParser\NodeVisitor\UseStmt\UseStmtCollection;
21		use Humbug\PhpScoper\Reflector;
22		use Humbug\PhpScoper\Whitelist;
23		use PhpParser\Node;
24		use PhpParser\Node\Expr\ArrowFunction;
25		use PhpParser\Node\Expr\ClassConstFetch;
26		use PhpParser\Node\Expr\ConstFetch;
27		use PhpParser\Node\Expr\FuncCall;
28		use PhpParser\Node\Expr\Instanceof_;
29		use PhpParser\Node\Expr\New_;
30		use PhpParser\Node\Expr\StaticCall;
31		use PhpParser\Node\Expr\StaticPropertyFetch;
32		use PhpParser\Node\Name;
33		use PhpParser\Node\Name\FullyQualified;
34		use PhpParser\Node\NullableType;
35		use PhpParser\Node\Param;
36		use PhpParser\Node\Stmt\Catch_;
37		use PhpParser\Node\Stmt\Class_;
38		use PhpParser\Node\Stmt\ClassMethod;
39		use PhpParser\Node\Stmt\Function_;
40		use PhpParser\Node\Stmt\Interface_;
41		use PhpParser\Node\Stmt\Property;
42		use PhpParser\Node\Stmt\TraitUse;
43		use PhpParser\Node\Stmt\TraitUseAdaptation\Alias;
44		use PhpParser\Node\Stmt\TraitUseAdaptation\Precedence;
45		use PhpParser\Node\Stmt\Use_;
46		use PhpParser\Node\Stmt\UseUse;
47		use PhpParser\NodeVisitorAbstract;
48		use function count;
49		use function in_array;
50		use function strtolower;
51
52		/**
53		* Prefixes names when appropriate.
54		*
55		* ```
56		* new Foo\Bar();
57		* ```.
58		*
59		* =>
60		*
61		* ```
62		* new \Humbug\Foo\Bar();
63		* ```
64		*
65		* @private
66		*/
67		final class NameStmtPrefixer extends NodeVisitorAbstract
68	549	{
69		public const PHP_SPECIAL_KEYWORDS = [
70		'self',
71		'static',
72		'parent',
73		];
74	549
75	549	private string $prefix;
76	549	private Whitelist $whitelist;
77	549	private NamespaceStmtCollection $namespaceStatements;
78		private UseStmtCollection $useStatements;
79		private FullyQualifiedNameResolver $nameResolver;
80		private Reflector $reflector;
81
82		public function __construct(
83	548	string $prefix,
84		Whitelist $whitelist,
85	548	NamespaceStmtCollection $namespaceStatements,
86	544	UseStmtCollection $useStatements,
87	548	FullyQualifiedNameResolver $nameResolver,
88		Reflector $reflector
89		) {
90		$this->prefix = $prefix;
91	544	$this->whitelist = $whitelist;
92		$this->namespaceStatements = $namespaceStatements;
93	544	$this->useStatements = $useStatements;
94		$this->nameResolver = $nameResolver;
95	544	$this->reflector = $reflector;
96	4	}
97
98		public function enterNode(Node $node): Node
99		{
100	4	if (!($node instanceof Name)) {
101		return $node;
102		}
103
104	544	$parent = self::findParent($node);
105	542
106	541	return null !== $parent
107	540	? $this->prefixName($node, $parent)
108	540	: $node;
109	538	}
110	538
111	538	private static function findParent(Node $name): ?Node
112	538	{
113	538	$parent = ParentNodeAppender::findParent($name);
114	538
115	538	if (null === $parent) {
116	544	return $parent;
117		}
118
119	537	if (!($parent instanceof NullableType)) {
120		return $parent;
121		}
122
123		return self::findParent($parent);
124	405	}
125	349
126	298	private function prefixName(Name $resolvedName, Node $parentNode): Node
127	236	{
128	185	if (false === (
129	133	$parentNode instanceof Alias
130	131	\|\| $parentNode instanceof ArrowFunction
131	120	\|\| $parentNode instanceof Catch_
132		\|\| $parentNode instanceof ConstFetch
133	320	\|\| $parentNode instanceof Class_
134		\|\| $parentNode instanceof ClassConstFetch
135	9	\|\| $parentNode instanceof ClassMethod
136		\|\| $parentNode instanceof FuncCall
137		\|\| $parentNode instanceof Function_
138	403	\|\| $parentNode instanceof Instanceof_
139	4	\|\| $parentNode instanceof Interface_
140		\|\| $parentNode instanceof New_
141		\|\| $parentNode instanceof Param
142	403	\|\| $parentNode instanceof Precedence
143		\|\| $parentNode instanceof Property
144	403	\|\| $parentNode instanceof StaticCall
145		\|\| $parentNode instanceof StaticPropertyFetch
146	403	\|\| $parentNode instanceof TraitUse
147	403	)
148		) {
149	23	return $resolvedName;
150		}
151
152		if (
153	392	(
154	257	$parentNode instanceof Catch_
155		\|\| $parentNode instanceof ClassConstFetch
156	61	\|\| $parentNode instanceof New_
157		\|\| $parentNode instanceof FuncCall
158		\|\| $parentNode instanceof Instanceof_
159	355	\|\| $parentNode instanceof Param
160	85	\|\| $parentNode instanceof Property
161	21	\|\| $parentNode instanceof StaticCall
162		\|\| $parentNode instanceof StaticPropertyFetch
163		)
164	67	&& in_array((string) $resolvedName, self::PHP_SPECIAL_KEYWORDS, true)
165	19	) {
166		return $resolvedName;
167		}
168
169		$originalName = OriginalNameResolver::getOriginalName($resolvedName);
170	48
171	8	if ($parentNode instanceof ConstFetch && 'null' === $originalName->toLowerString()) {
172		return $originalName;
173		}
174	46
175		// Do not prefix if there is a matching use statement.
176	11	$useStatement = $this->useStatements->findStatementForNode(
177		$this->namespaceStatements->findNamespaceForNode($resolvedName),
178		$resolvedName,
179		);
180
181		if (
182		self::doesNameBelongToUseStatement(
183		$originalName,
184	320	$resolvedName,
185	76	$parentNode,
186	37	$useStatement,
187		$this->whitelist,
188		)
189	54	) {
190	9	return $originalName;
191		}
192
193		if ($resolvedName instanceof FullyQualified
194	297	&& (
195	3	$this->prefix === $resolvedName->getFirst() // Skip if is already prefixed
196		\|\| $this->whitelist->belongsToWhitelistedNamespace((string) $resolvedName) // Skip if the namespace node is whitelisted
197		)
198	297	) {
199	297	return $resolvedName;
200	297	}
201	297
202		// Do not prefix if the Name is inside of the current namespace
203		$currentNamespace = $this->namespaceStatements->getCurrentNamespaceName();
204
205		if (
206		self::doesNameBelongToNamespace(
207		$originalName,
208		$resolvedName,
209		$currentNamespace,
210		)
211		\|\| (
212		// In the global scope
213		$currentNamespace === null
214		&& $originalName->parts === $resolvedName->parts
215		&& !($originalName instanceof FullyQualified)
216		&& !($parentNode instanceof ConstFetch)
217		&& $resolvedName instanceof FullyQualified
218		&& !$this->whitelist->isSymbolWhitelisted($resolvedName->toString())
219		&& !$this->reflector->isFunctionInternal($resolvedName->toString())
220		&& !$this->reflector->isClassInternal($resolvedName->toString())
221		)
222		) {
223		return $originalName;
224		}
225
226		// Check if the class can be prefixed
227		if (!($parentNode instanceof ConstFetch \|\| $parentNode instanceof FuncCall)
228		&& $resolvedName instanceof FullyQualified
229		&& $this->reflector->isClassInternal($resolvedName->toString())
230		) {
231		return $resolvedName;
232		}
233
234		if ($parentNode instanceof ConstFetch) {
235		if ($this->whitelist->isSymbolWhitelisted($resolvedName->toString(), true)) {
236		return $resolvedName;
237		}
238
239		if ($this->reflector->isConstantInternal($resolvedName->toString())) {
240		return new FullyQualified($resolvedName->toString(), $resolvedName->getAttributes());
241		}
242
243		// Constants have an autoloading fallback so we cannot prefix them when the name is ambiguous
244		// See https://wiki.php.net/rfc/fallback-to-root-scope-deprecation
245		if (false === ($resolvedName instanceof FullyQualified)) {
246		return $resolvedName;
247		}
248
249		if ($this->whitelist->isGlobalWhitelistedConstant((string) $resolvedName)) {
250		// Unlike classes & functions, whitelisted are not prefixed with aliases registered in scoper-autoload.php
251		return new FullyQualified($resolvedName->toString(), $resolvedName->getAttributes());
252		}
253
254		// Continue
255		}
256
257		// Functions have a fallback auto-loading so we cannot prefix them when the name is ambiguous
258		// See https://wiki.php.net/rfc/fallback-to-root-scope-deprecation
259		if ($parentNode instanceof FuncCall) {
260		if ($this->reflector->isFunctionInternal($originalName->toString())) {
261		return new FullyQualified(
262		$originalName->toString(),
263		$originalName->getAttributes(),
264		);
265		}
266
267		if (!($resolvedName instanceof FullyQualified)) {
268		return $resolvedName;
269		}
270		}
271
272		if ($parentNode instanceof ClassMethod && $resolvedName->isSpecialClassName()) {
273		return $resolvedName;
274		}
275
276		return FullyQualifiedFactory::concat(
277		$this->prefix,
278		$resolvedName->toString(),
279		$resolvedName->getAttributes()
280		);
281		}
282
283		/**
284		* @param string[] $array
285		* @param string[] $start
286		*/
287		private static function arrayStartsWith(array $array, array $start): bool
288		{
289		$prefixLength = count($start);
290
291		for ($index = 0; $index < $prefixLength; ++$index) {
292		if ($array[$index] !== $start[$index]) {
293		return false;
294		}
295		}
296
297		return true;
298		}
299
300		private static function doesNameBelongToNamespace(
301		Name $originalName,
302		Name $resolvedName,
303		?Name $namespace
304		): bool
305		{
306		if (
307		$namespace === null
308		\|\| !($resolvedName instanceof FullyQualified)
309		// In case the original name is a FQ, we do not skip the prefixing
310		// and keep it as FQ
311		\|\| $originalName instanceof FullyQualified
312		) {
313		return false;
314		}
315
316		$originalNameFQParts = [
317		...$namespace->parts,
318		...$originalName->parts,
319		];
320
321		return $originalNameFQParts === $resolvedName->parts;
322		}
323
324		private static function doesNameBelongToUseStatement(
325		Name $originalName,
326		Name $resolvedName,
327		Node $parentNode,
328		?Name $useStatementName,
329		Whitelist $whitelist
330		): bool
331		{
332		if (
333		null === $useStatementName
334		\|\| !($resolvedName instanceof FullyQualified)
335		// In case the original name is a FQ, we do not skip the prefixing
336		// and keep it as FQ
337		\|\| $originalName instanceof FullyQualified
338		// TODO: review Isolated Finder support
339		\|\| $resolvedName->parts === ['Isolated', 'Symfony', 'Component', 'Finder', 'Finder']
340		\|\| !self::arrayStartsWith($resolvedName->parts, $useStatementName->parts)
341		) {
342		return false;
343		}
344
345		if ($parentNode instanceof ConstFetch) {
346		// If a constant is whitelisted, it can be that letting a non FQ breaks
347		// things. For example the whitelisted namespaced constant could be
348		// used via a partial import (in which case it is a regular import not
349		// a constant one) which may not be prefixed.
350		// For this reason in this scenario we will always transform the
351		// constant in a FQ one.
352		// Note that this could be adjusted based on the type of the use
353		// statement but that requires further changes as at this point we
354		// only have the use statement name.
355		// TODO: review this statement also check use aliases with constants or functions
356		if ($whitelist->isGlobalWhitelistedConstant($resolvedName->toString())
357		\|\| $whitelist->isSymbolWhitelisted($resolvedName->toString(), true)
358		) {
359		return false;
360		}
361
362		return null !== $useStatementName;
363		}
364
365		$useStatementParent = ParentNodeAppender::getParent($useStatementName);
366
367		if (!($useStatementParent instanceof UseUse)) {
368		return false;
369		}
370
371		$useStatementAlias = $useStatementParent->alias;
372
373		if (null === $useStatementAlias) {
374		return true;
375		}
376
377		// Classes and namespaces usages are case-insensitive
378		$caseSensitiveUseStmt = !in_array(
379		$useStatementParent->type,
380		[Use_::TYPE_UNKNOWN, Use_::TYPE_NORMAL],
381		true,
382		);
383
384		return $caseSensitiveUseStmt
385		? $originalName->getFirst() === $useStatementAlias->toString()
386		: strtolower($originalName->getFirst()) === $useStatementAlias->toLowerString();
387		}
388		}
389

humbug / php-scoper

Pull Request — master (#501)

NameStmtPrefixer::doesNameBelongToUseStatement() C

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