NodeExpressionResolver::fetchReflectionClass() - Code Metrics - Inspection of "Merge pull request #107 from goaop/feature/library..." - goaop/parser-reflection - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 555240...fa2155 )

by Alexander

created 2020-11-19 21:39 UTC

NodeExpressionResolver::fetchReflectionClass() C

↳ Parent: NodeExpressionResolver

Complexity

Conditions	11
Paths	17

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	14
CRAP Score	19.7549

Importance

Changes

Metric	Value
dl	0
loc	51
ccs	14
cts	24
cp	0.5833
rs	6.9224
c	0
b	0
f	0
cc	11
nc	17
nop	1
crap	19.7549

How to fix Long Method Complexity

<?php

declare(strict_types=1);
/**
 * Parser Reflection API
 *
 * @copyright Copyright 2015, Lisachenko Alexander <[email protected]>
 *
 * This source file is subject to the license that is bundled
 * with this source code in the file LICENSE.
 */

namespace Go\ParserReflection\ValueResolver;

use Go\ParserReflection\ReflectionClass;
use Go\ParserReflection\ReflectionException;
use Go\ParserReflection\ReflectionFileNamespace;
use PhpParser\Node;
use PhpParser\Node\Expr;
use PhpParser\Node\Scalar\DNumber;
use PhpParser\Node\Scalar\LNumber;
use PhpParser\Node\Scalar\MagicConst\Line;
use PhpParser\Node\Scalar\String_;
use PhpParser\Node\Stmt\Expression;
use ReflectionFunctionAbstract;
use ReflectionMethod;

/**
 * Tries to resolve expression into value
 */
class NodeExpressionResolver
{

    /**
     * List of exception for constant fetch
     *
     * @var array
     */
    private static $notConstants = [
        'true'  => true,
        'false' => true,
        'null'  => true,
    ];

    /**
     * Name of the constant (if present)
     *
     * @var ?string
     */
    private $constantName;

    /**
     * Current reflection context for parsing
     *
     * @var mixed|ReflectionClass
     */
    private $context;

    /**
     * Flag if expression is constant
     *
     * @var bool
     */
    private $isConstant = false;

    /**
     * Node resolving level, 1 = top-level
     *
     * @var int
     */
    private $nodeLevel = 0;

    /**
     * @var mixed Value of expression/constant
     */
    private $value;

    public function __construct($context)
    {
        $this->context = $context;
    }

    public function getConstantName(): ?string
    {
        return $this->constantName;
    }

    public function getValue()
    {
        return $this->value;
    }

    public function isConstant(): bool
    {
        return $this->isConstant;
    }

    public function process(Node $node): void
    {
        // Unwrap "expr;" statements.
        if ($node instanceof Expression) {
            $node = $node->expr;
        }

        $this->nodeLevel    = 0;
        $this->isConstant   = false;
        $this->constantName = null;
        $this->value        = $this->resolve($node);
    }

    /**
     * Resolves node into valid value
     *
     * @param Node $node
     *
     * @return mixed
     */
    protected function resolve(Node $node)
    {
        $value = null;
        try {
            ++$this->nodeLevel;

            $methodName = $this->getDispatchMethodFor($node);
            if (method_exists($this, $methodName)) {
                $value = $this->$methodName($node);
            }
        } finally {
            --$this->nodeLevel;
        }

        return $value;
    }

    protected function resolveScalarDNumber(DNumber $node): float
    {
        return $node->value;
    }

    protected function resolveScalarLNumber(LNumber $node): int
    {
        return $node->value;
    }

    protected function resolveScalarString(String_ $node): string
    {
        return $node->value;
    }

    protected function resolveScalarMagicConstMethod(): string
    {
        if ($this->context instanceof ReflectionMethod) {
            $fullName = $this->context->getDeclaringClass()->name . '::' . $this->context->getShortName();

            return $fullName;
        }

        return '';
    }

    protected function resolveScalarMagicConstFunction(): string
    {
        if ($this->context instanceof ReflectionFunctionAbstract) {
            return $this->context->getName();
        }

        return '';
    }

    protected function resolveScalarMagicConstNamespace(): string
    {
        if (method_exists($this->context, 'getNamespaceName')) {
            return $this->context->getNamespaceName();
        }

        if ($this->context instanceof ReflectionFileNamespace) {
            return $this->context->getName();
        }

        return '';
    }

    protected function resolveScalarMagicConstClass(): string
    {
        if ($this->context instanceof \ReflectionClass) {
            return $this->context->name;
        }
        if (method_exists($this->context, 'getDeclaringClass')) {
            $declaringClass = $this->context->getDeclaringClass();
            if ($declaringClass instanceof \ReflectionClass) {
                return $declaringClass->name;
            }
        }

        return '';
    }

    protected function resolveScalarMagicConstDir(): string
    {
        if (method_exists($this->context, 'getFileName')) {
            return dirname($this->context->getFileName());
        }

        return '';
    }

    protected function resolveScalarMagicConstFile(): string
    {
        if (method_exists($this->context, 'getFileName')) {
            return $this->context->getFileName();
        }

        return '';
    }

    protected function resolveScalarMagicConstLine(Line $node): int
    {
        return $node->hasAttribute('startLine') ? $node->getAttribute('startLine') : 0;
    }

    protected function resolveScalarMagicConstTrait(): string
    {
        if ($this->context instanceof \ReflectionClass && $this->context->isTrait()) {
            return $this->context->name;
        }

        return '';
    }

    protected function resolveExprConstFetch(Expr\ConstFetch $node)
    {
        $constantValue = null;
        $isResolved    = false;

        $isFQNConstant = $node->name instanceof Node\Name\FullyQualified;
        $constantName  = $node->name->toString();

        if (!$isFQNConstant && method_exists($this->context, 'getFileName')) {
            $fileName      = $this->context->getFileName();
            $namespaceName = $this->resolveScalarMagicConstNamespace();
            $fileNamespace = new ReflectionFileNamespace($fileName, $namespaceName);
            if ($fileNamespace->hasConstant($constantName)) {
                $constantValue = $fileNamespace->getConstant($constantName);
                $constantName  = $fileNamespace->getName() . '\\' . $constantName;
                $isResolved    = true;
            }
        }

        if (!$isResolved && defined($constantName)) {
            $constantValue = constant($constantName);
        }

        if ($this->nodeLevel === 1 && !isset(self::$notConstants[$constantName])) {
            $this->isConstant   = true;
            $this->constantName = $constantName;
        }

        return $constantValue;
    }

    protected function resolveExprClassConstFetch(Expr\ClassConstFetch $node)
    {
        $classToReflect = $node->class;
        if (!($classToReflect instanceof Node\Name)) {
            $classToReflect = $this->resolve($classToReflect) ?: $classToReflect;
            if (!is_string($classToReflect)) {
                $reason = 'Unable';
                if ($classToReflect instanceof Expr) {
                    $methodName = $this->getDispatchMethodFor($classToReflect);
                    $reason     = "Method " . __CLASS__ . "::{$methodName}() not found trying";
                }
                throw new ReflectionException("$reason to resolve class constant.");
            }
            // Strings evaluated as class names are always treated as fully
            // qualified.
            $classToReflect = new Node\Name\FullyQualified(ltrim($classToReflect, '\\'));
        }
        $refClass     = $this->fetchReflectionClass($classToReflect);
        $constantName = ($node->name instanceof Expr\Error) ? '' : $node->name->toString();

        // special handling of ::class constants
        if ('class' === $constantName) {
            return $refClass->getName();
        }

        $this->isConstant   = true;
        $this->constantName = $classToReflect . '::' . $constantName;

        return $refClass->getConstant($constantName);
    }

    protected function resolveExprArray(Expr\Array_ $node): array
    {
        $result = [];
        foreach ($node->items as $itemIndex => $arrayItem) {
            $itemValue        = $this->resolve($arrayItem->value);
            $itemKey          = isset($arrayItem->key) ? $this->resolve($arrayItem->key) : $itemIndex;
            $result[$itemKey] = $itemValue;
        }

        return $result;
    }

    protected function resolveExprBinaryOpPlus(Expr\BinaryOp\Plus $node)
    {
        return $this->resolve($node->left) + $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpMinus(Expr\BinaryOp\Minus $node)
    {
        return $this->resolve($node->left) - $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpMul(Expr\BinaryOp\Mul $node)
    {
        return $this->resolve($node->left) * $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpPow(Expr\BinaryOp\Pow $node)
    {
        return $this->resolve($node->left) ** $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpDiv(Expr\BinaryOp\Div $node)
    {
        return $this->resolve($node->left) / $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpMod(Expr\BinaryOp\Mod $node): int
    {
        return $this->resolve($node->left) % $this->resolve($node->right);
    }

    protected function resolveExprBooleanNot(Expr\BooleanNot $node): bool
    {
        return !$this->resolve($node->expr);
    }

    protected function resolveExprBitwiseNot(Expr\BitwiseNot $node)
    {
        return ~$this->resolve($node->expr);
    }

    protected function resolveExprBinaryOpBitwiseOr(Expr\BinaryOp\BitwiseOr $node): int
    {
        return $this->resolve($node->left) | $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpBitwiseAnd(Expr\BinaryOp\BitwiseAnd $node): int
    {
        return $this->resolve($node->left) & $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpBitwiseXor(Expr\BinaryOp\BitwiseXor $node): int
    {
        return $this->resolve($node->left) ^ $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpShiftLeft(Expr\BinaryOp\ShiftLeft $node): int
    {
        return $this->resolve($node->left) << $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpShiftRight(Expr\BinaryOp\ShiftRight $node): int
    {
        return $this->resolve($node->left) >> $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpConcat(Expr\BinaryOp\Concat $node): string
    {
        return $this->resolve($node->left) . $this->resolve($node->right);
    }

    protected function resolveExprTernary(Expr\Ternary $node)
    {
        if (isset($node->if)) {
            // Full syntax $a ? $b : $c;

            return $this->resolve($node->cond) ? $this->resolve($node->if) : $this->resolve($node->else);
        }

        return $this->resolve($node->cond) ?: $this->resolve($node->else);
    }

    protected function resolveExprBinaryOpSmallerOrEqual(Expr\BinaryOp\SmallerOrEqual $node): bool
    {
        return $this->resolve($node->left) <= $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpGreaterOrEqual(Expr\BinaryOp\GreaterOrEqual $node): bool
    {
        return $this->resolve($node->left) >= $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpEqual(Expr\BinaryOp\Equal $node): bool
    {
        /** @noinspection TypeUnsafeComparisonInspection */
        return $this->resolve($node->left) == $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpNotEqual(Expr\BinaryOp\NotEqual $node): bool
    {
        /** @noinspection TypeUnsafeComparisonInspection */
        return $this->resolve($node->left) != $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpSmaller(Expr\BinaryOp\Smaller $node): bool
    {
        return $this->resolve($node->left) < $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpGreater(Expr\BinaryOp\Greater $node): bool
    {
        return $this->resolve($node->left) > $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpIdentical(Expr\BinaryOp\Identical $node): bool
    {
        return $this->resolve($node->left) === $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpNotIdentical(Expr\BinaryOp\NotIdentical $node): bool
    {
        return $this->resolve($node->left) !== $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpBooleanAnd(Expr\BinaryOp\BooleanAnd $node): bool
    {
        return $this->resolve($node->left) && $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpLogicalAnd(Expr\BinaryOp\LogicalAnd $node): bool
    {
        return $this->resolve($node->left) and $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpBooleanOr(Expr\BinaryOp\BooleanOr $node): bool
    {
        return $this->resolve($node->left) || $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpLogicalOr(Expr\BinaryOp\LogicalOr $node): bool
    {
        return $this->resolve($node->left) or $this->resolve($node->right);
    }

    protected function resolveExprBinaryOpLogicalXor(Expr\BinaryOp\LogicalXor $node): bool
    {
        return $this->resolve($node->left) xor $this->resolve($node->right);
    }

    private function getDispatchMethodFor(Node $node): string
    {
        $nodeType = $node->getType();

        return 'resolve' . str_replace('_', '', $nodeType);
    }

    /**
     * Utility method to fetch reflection class instance by name
     *
     * Supports:
     *   'self' keyword
     *   'parent' keyword
     *    not-FQN class names
     *
     * @param Node\Name $node Class name node
     *
     * @return bool|\ReflectionClass
     *
     * @throws ReflectionException
     */
    private function fetchReflectionClass(Node\Name $node)
    {
        $className  = $node->toString();
        $isFQNClass = $node instanceof Node\Name\FullyQualified;
        if ($isFQNClass) {
            // check to see if the class is already loaded and is safe to use
            // PHP's ReflectionClass to determine if the class is user defined
            if (class_exists($className, false)) {
                $refClass = new \ReflectionClass($className);
                if (!$refClass->isUserDefined()) {
                    return $refClass;
                }
            }

            return new ReflectionClass($className);
        }

        if ('self' === $className) {
            if ($this->context instanceof \ReflectionClass) {
                return $this->context;
            }

            if (method_exists($this->context, 'getDeclaringClass')) {
                return $this->context->getDeclaringClass();
            }
        }

        if ('parent' === $className) {
            if ($this->context instanceof \ReflectionClass) {
                return $this->context->getParentClass();
            }

            if (method_exists($this->context, 'getDeclaringClass')) {
                return $this->context->getDeclaringClass()
                                     ->getParentClass()
                    ;
            }
        }

        if (method_exists($this->context, 'getFileName')) {
            /** @var ReflectionFileNamespace|null $fileNamespace */
            $fileName      = $this->context->getFileName();
            $namespaceName = $this->resolveScalarMagicConstNamespace();

            $fileNamespace = new ReflectionFileNamespace($fileName, $namespaceName);

            return $fileNamespace->getClass($className);
        }

        throw new ReflectionException("Can not resolve class $className");
    }
}


1		<?php
2
3		declare(strict_types=1);
4		/**
5		* Parser Reflection API
6		*
7		* @copyright Copyright 2015, Lisachenko Alexander <[email protected]>
8		*
9		* This source file is subject to the license that is bundled
10		* with this source code in the file LICENSE.
11		*/
12
13		namespace Go\ParserReflection\ValueResolver;
14
15		use Go\ParserReflection\ReflectionClass;
16		use Go\ParserReflection\ReflectionException;
17		use Go\ParserReflection\ReflectionFileNamespace;
18		use PhpParser\Node;
19		use PhpParser\Node\Expr;
20		use PhpParser\Node\Scalar\DNumber;
21		use PhpParser\Node\Scalar\LNumber;
22		use PhpParser\Node\Scalar\MagicConst\Line;
23		use PhpParser\Node\Scalar\String_;
24		use PhpParser\Node\Stmt\Expression;
25		use ReflectionFunctionAbstract;
26		use ReflectionMethod;
27
28		/**
29		* Tries to resolve expression into value
30		*/
31		class NodeExpressionResolver
32		{
33
34		/**
35		* List of exception for constant fetch
36		*
37		* @var array
38		*/
39		private static $notConstants = [
40		'true' => true,
41		'false' => true,
42		'null' => true,
43		];
44
45		/**
46		* Name of the constant (if present)
47		*
48		* @var ?string
49		*/
50		private $constantName;
51
52		/**
53		* Current reflection context for parsing
54		*
55		* @var mixed\|ReflectionClass
56		*/
57		private $context;
58
59		/**
60		* Flag if expression is constant
61		*
62		* @var bool
63		*/
64		private $isConstant = false;
65
66		/**
67		* Node resolving level, 1 = top-level
68		*
69		* @var int
70		*/
71		private $nodeLevel = 0;
72	76
73		/**
74	76	* @var mixed Value of expression/constant
75	76	*/
76		private $value;
77	21
78		public function __construct($context)
79	21	{
80		$this->context = $context;
81		}
82	51
83		public function getConstantName(): ?string
84	51	{
85		return $this->constantName;
86		}
87	21
88		public function getValue()
89	21	{
90		return $this->value;
91		}
92
93		public function isConstant(): bool
94		{
95	53	return $this->isConstant;
96		}
97
98	53	public function process(Node $node): void
99	3	{
100		// Unwrap "expr;" statements.
101		if ($node instanceof Expression) {
102	53	$node = $node->expr;
103	53	}
104	53
105	53	$this->nodeLevel = 0;
106	51	$this->isConstant = false;
107		$this->constantName = null;
108		$this->value = $this->resolve($node);
109		}
110
111		/**
112		* Resolves node into valid value
113		*
114		* @param Node $node
115	53	*
116		* @return mixed
117	53	*/
118		protected function resolve(Node $node)
119	53	{
120		$value = null;
121	53	try {
122	53	++$this->nodeLevel;
123	53
124		$methodName = $this->getDispatchMethodFor($node);
125	53	if (method_exists($this, $methodName)) {
126	53	$value = $this->$methodName($node);
127		}
128		} finally {
129	53	--$this->nodeLevel;
130		}
131
132	9	return $value;
133		}
134	9
135		protected function resolveScalarDNumber(DNumber $node): float
136		{
137	28	return $node->value;
138		}
139	28
140		protected function resolveScalarLNumber(LNumber $node): int
141		{
142	25	return $node->value;
143		}
144	25
145		protected function resolveScalarString(String_ $node): string
146		{
147		return $node->value;
148		}
149
150		protected function resolveScalarMagicConstMethod(): string
151		{
152		if ($this->context instanceof ReflectionMethod) {
153		$fullName = $this->context->getDeclaringClass()->name . '::' . $this->context->getShortName();
154
155		return $fullName;
156		}
157
158	1	return '';
159		}
160	1
161	1	protected function resolveScalarMagicConstFunction(): string
162		{
163		if ($this->context instanceof ReflectionFunctionAbstract) {
164		return $this->context->getName();
165		}
166
167	30	return '';
168		}
169	30
170	27	protected function resolveScalarMagicConstNamespace(): string
171		{
172		if (method_exists($this->context, 'getNamespaceName')) {
173	3	return $this->context->getNamespaceName();
174	3	}
175
176		if ($this->context instanceof ReflectionFileNamespace) {
177		return $this->context->getName();
178		}
179
180	11	return '';
181		}
182	11
183	5	protected function resolveScalarMagicConstClass(): string
184		{
185	6	if ($this->context instanceof \ReflectionClass) {
186		return $this->context->name;
187		}
188		if (method_exists($this->context, 'getDeclaringClass')) {
189		$declaringClass = $this->context->getDeclaringClass();
190		if ($declaringClass instanceof \ReflectionClass) {
191		return $declaringClass->name;
192	6	}
193		}
194
195	4	return '';
196		}
197	4
198	4	protected function resolveScalarMagicConstDir(): string
199		{
200		if (method_exists($this->context, 'getFileName')) {
201		return dirname($this->context->getFileName());
202		}
203
204	7	return '';
205		}
206	7
207	7	protected function resolveScalarMagicConstFile(): string
208		{
209		if (method_exists($this->context, 'getFileName')) {
210		return $this->context->getFileName();
211		}
212
213	7	return '';
214		}
215	7
216		protected function resolveScalarMagicConstLine(Line $node): int
217		{
218	2	return $node->hasAttribute('startLine') ? $node->getAttribute('startLine') : 0;
219		}
220	2
221	2	protected function resolveScalarMagicConstTrait(): string
222		{
223		if ($this->context instanceof \ReflectionClass && $this->context->isTrait()) {
224		return $this->context->name;
225		}
226
227	28	return '';
228		}
229	28
230	28	protected function resolveExprConstFetch(Expr\ConstFetch $node)
231		{
232	28	$constantValue = null;
233	28	$isResolved = false;
234
235	28	$isFQNConstant = $node->name instanceof Node\Name\FullyQualified;
236	24	$constantName = $node->name->toString();
237	24
238	24	if (!$isFQNConstant && method_exists($this->context, 'getFileName')) {
239	24	$fileName = $this->context->getFileName();
240	24	$namespaceName = $this->resolveScalarMagicConstNamespace();
241	13	$fileNamespace = new ReflectionFileNamespace($fileName, $namespaceName);
242	13	if ($fileNamespace->hasConstant($constantName)) {
243	13	$constantValue = $fileNamespace->getConstant($constantName);
244		$constantName = $fileNamespace->getName() . '\\' . $constantName;
245		$isResolved = true;
246		}
247		}
248	28
249	26	if (!$isResolved && defined($constantName)) {
250		$constantValue = constant($constantName);
251		}
252	28
253	16	if ($this->nodeLevel === 1 && !isset(self::$notConstants[$constantName])) {
254	16	$this->isConstant = true;
255		$this->constantName = $constantName;
256		}
257	28
258		return $constantValue;
259		}
260	15
261		protected function resolveExprClassConstFetch(Expr\ClassConstFetch $node)
262	15	{
263	15	$classToReflect = $node->class;
264	3	if (!($classToReflect instanceof Node\Name)) {
265	3	$classToReflect = $this->resolve($classToReflect) ?: $classToReflect;
266	2	if (!is_string($classToReflect)) {
267	2	$reason = 'Unable';
268	1	if ($classToReflect instanceof Expr) {
269	1	$methodName = $this->getDispatchMethodFor($classToReflect);
270		$reason = "Method " . __CLASS__ . "::{$methodName}() not found trying";
271	2	}
272		throw new ReflectionException("$reason to resolve class constant.");
273		}
274		// Strings evaluated as class names are always treated as fully
275	1	// qualified.
276		$classToReflect = new Node\Name\FullyQualified(ltrim($classToReflect, '\\'));
277	13	}
278	13	$refClass = $this->fetchReflectionClass($classToReflect);
279		$constantName = ($node->name instanceof Expr\Error) ? '' : $node->name->toString();
280
281	13	// special handling of ::class constants
282	3	if ('class' === $constantName) {
283		return $refClass->getName();
284		}
285	11
286	11	$this->isConstant = true;
287		$this->constantName = $classToReflect . '::' . $constantName;
288	11
289		return $refClass->getConstant($constantName);
290		}
291	9
292		protected function resolveExprArray(Expr\Array_ $node): array
293	9	{
294	9	$result = [];
295	8	foreach ($node->items as $itemIndex => $arrayItem) {
296	8	$itemValue = $this->resolve($arrayItem->value);
297	8	$itemKey = isset($arrayItem->key) ? $this->resolve($arrayItem->key) : $itemIndex;
298		$result[$itemKey] = $itemValue;
299		}
300	9
301		return $result;
302		}
303	3
304		protected function resolveExprBinaryOpPlus(Expr\BinaryOp\Plus $node)
305	3	{
306		return $this->resolve($node->left) + $this->resolve($node->right);
307		}
308	1
309		protected function resolveExprBinaryOpMinus(Expr\BinaryOp\Minus $node)
310	1	{
311		return $this->resolve($node->left) - $this->resolve($node->right);
312		}
313	2
314		protected function resolveExprBinaryOpMul(Expr\BinaryOp\Mul $node)
315	2	{
316		return $this->resolve($node->left) * $this->resolve($node->right);
317		}
318	1
319		protected function resolveExprBinaryOpPow(Expr\BinaryOp\Pow $node)
320	1	{
321		return $this->resolve($node->left) ** $this->resolve($node->right);
322		}
323	1
324		protected function resolveExprBinaryOpDiv(Expr\BinaryOp\Div $node)
325	1	{
326		return $this->resolve($node->left) / $this->resolve($node->right);
327		}
328	1
329		protected function resolveExprBinaryOpMod(Expr\BinaryOp\Mod $node): int
330	1	{
331		return $this->resolve($node->left) % $this->resolve($node->right);
332		}
333	1
334		protected function resolveExprBooleanNot(Expr\BooleanNot $node): bool
335	1	{
336		return !$this->resolve($node->expr);
337		}
338	1
339		protected function resolveExprBitwiseNot(Expr\BitwiseNot $node)
340	1	{
341		return ~$this->resolve($node->expr);
342		}
343	1
344		protected function resolveExprBinaryOpBitwiseOr(Expr\BinaryOp\BitwiseOr $node): int
345	1	{
346		return $this->resolve($node->left) \| $this->resolve($node->right);
347		}
348	1
349		protected function resolveExprBinaryOpBitwiseAnd(Expr\BinaryOp\BitwiseAnd $node): int
350	1	{
351		return $this->resolve($node->left) & $this->resolve($node->right);
352		}
353	1
354		protected function resolveExprBinaryOpBitwiseXor(Expr\BinaryOp\BitwiseXor $node): int
355	1	{
356		return $this->resolve($node->left) ^ $this->resolve($node->right);
357		}
358	1
359		protected function resolveExprBinaryOpShiftLeft(Expr\BinaryOp\ShiftLeft $node): int
360	1	{
361		return $this->resolve($node->left) << $this->resolve($node->right);
362		}
363	1
364		protected function resolveExprBinaryOpShiftRight(Expr\BinaryOp\ShiftRight $node): int
365	1	{
366		return $this->resolve($node->left) >> $this->resolve($node->right);
367		}
368	3
369		protected function resolveExprBinaryOpConcat(Expr\BinaryOp\Concat $node): string
370	3	{
371		return $this->resolve($node->left) . $this->resolve($node->right);
372		}
373	1
374		protected function resolveExprTernary(Expr\Ternary $node)
375	1	{
376		if (isset($node->if)) {
377		// Full syntax $a ? $b : $c;
378
379		return $this->resolve($node->cond) ? $this->resolve($node->if) : $this->resolve($node->else);
380		}
381
382	1	return $this->resolve($node->cond) ?: $this->resolve($node->else);
383		}
384
385		protected function resolveExprBinaryOpSmallerOrEqual(Expr\BinaryOp\SmallerOrEqual $node): bool
386	1	{
387		return $this->resolve($node->left) <= $this->resolve($node->right);
388	1	}
389
390		protected function resolveExprBinaryOpGreaterOrEqual(Expr\BinaryOp\GreaterOrEqual $node): bool
391	1	{
392		return $this->resolve($node->left) >= $this->resolve($node->right);
393	1	}
394
395		protected function resolveExprBinaryOpEqual(Expr\BinaryOp\Equal $node): bool
396	1	{
397		/** @noinspection TypeUnsafeComparisonInspection */
398	1	return $this->resolve($node->left) == $this->resolve($node->right);
399		}
400
401	1	protected function resolveExprBinaryOpNotEqual(Expr\BinaryOp\NotEqual $node): bool
402		{
403	1	/** @noinspection TypeUnsafeComparisonInspection */
404		return $this->resolve($node->left) != $this->resolve($node->right);
405		}
406	1
407		protected function resolveExprBinaryOpSmaller(Expr\BinaryOp\Smaller $node): bool
408	1	{
409		return $this->resolve($node->left) < $this->resolve($node->right);
410		}
411	2
412		protected function resolveExprBinaryOpGreater(Expr\BinaryOp\Greater $node): bool
413	2	{
414		return $this->resolve($node->left) > $this->resolve($node->right);
415		}
416	1
417		protected function resolveExprBinaryOpIdentical(Expr\BinaryOp\Identical $node): bool
418	1	{
419		return $this->resolve($node->left) === $this->resolve($node->right);
420		}
421	1
422		protected function resolveExprBinaryOpNotIdentical(Expr\BinaryOp\NotIdentical $node): bool
423	1	{
424		return $this->resolve($node->left) !== $this->resolve($node->right);
425		}
426	1
427		protected function resolveExprBinaryOpBooleanAnd(Expr\BinaryOp\BooleanAnd $node): bool
428	1	{
429		return $this->resolve($node->left) && $this->resolve($node->right);
430		}
431	1
432		protected function resolveExprBinaryOpLogicalAnd(Expr\BinaryOp\LogicalAnd $node): bool
433	1	{
434		return $this->resolve($node->left) and $this->resolve($node->right);
435		}
436	1
437		protected function resolveExprBinaryOpBooleanOr(Expr\BinaryOp\BooleanOr $node): bool
438	1	{
439		return $this->resolve($node->left) \|\| $this->resolve($node->right);
440		}
441	1
442		protected function resolveExprBinaryOpLogicalOr(Expr\BinaryOp\LogicalOr $node): bool
443	1	{
444		return $this->resolve($node->left) or $this->resolve($node->right);
445		}
446	1
447		protected function resolveExprBinaryOpLogicalXor(Expr\BinaryOp\LogicalXor $node): bool
448	1	{
449		return $this->resolve($node->left) xor $this->resolve($node->right);
450		}
451	53
452		private function getDispatchMethodFor(Node $node): string
453	53	{
454	53	$nodeType = $node->getType();
455
456		return 'resolve' . str_replace('_', '', $nodeType);
457		}
458
459		/**
460		* Utility method to fetch reflection class instance by name
461		*
462		* Supports:
463		* 'self' keyword
464		* 'parent' keyword
465		* not-FQN class names
466		*
467		* @param Node\Name $node Class name node
468		*
469		* @return bool\|\ReflectionClass
470		*
471	13	* @throws ReflectionException
472		*/
473	13	private function fetchReflectionClass(Node\Name $node)
474	13	{
475	13	$className = $node->toString();
476		$isFQNClass = $node instanceof Node\Name\FullyQualified;
477		if ($isFQNClass) {
478	6	// check to see if the class is already loaded and is safe to use
479	6	// PHP's ReflectionClass to determine if the class is user defined
480	6	if (class_exists($className, false)) {
481	3	$refClass = new \ReflectionClass($className);
482		if (!$refClass->isUserDefined()) {
483		return $refClass;
484	4	}
485		}
486
487	9	return new ReflectionClass($className);
488	9	}
489	9
490		if ('self' === $className) {
491		if ($this->context instanceof \ReflectionClass) {
492		return $this->context;
493		}
494
495	1	if (method_exists($this->context, 'getDeclaringClass')) {
496	1	return $this->context->getDeclaringClass();
497	1	}
498		}
499
500		if ('parent' === $className) {
501		if ($this->context instanceof \ReflectionClass) {
502		return $this->context->getParentClass();
503		}
504
505		if (method_exists($this->context, 'getDeclaringClass')) {
506		return $this->context->getDeclaringClass()
507		->getParentClass()
508		;
509		}
510		}
511
512		if (method_exists($this->context, 'getFileName')) {
513		/** @var ReflectionFileNamespace\|null $fileNamespace */
514		$fileName = $this->context->getFileName();
515		$namespaceName = $this->resolveScalarMagicConstNamespace();
516
517		$fileNamespace = new ReflectionFileNamespace($fileName, $namespaceName);
518
519		return $fileNamespace->getClass($className);
520		}
521
522		throw new ReflectionException("Can not resolve class $className");
523		}
524		}
525

goaop / parser-reflection

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NodeExpressionResolver::fetchReflectionClass() C

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