AssertionFactory::getInstance() - Code Metrics - Inspection of "Allow usage of short assertion types" - appserver-io/doppelgaenger - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#42)

unknown

created 2017-12-05 15:51 UTC

AssertionFactory::getInstance() C

↳ Parent: AssertionFactory

Complexity

Conditions	7
Paths	9

Size

Total Lines	23
Code Lines	15

Duplication

Lines	0
Ratio	0 %

Importance

Changes	4
Bugs	0	Features	0

Metric	Value
c	4
b	0
f	0
dl	0
loc	23
rs	6.7272
cc	7
eloc	15
nc	9
nop	1

<?php

/**
 * \AppserverIo\Doppelgaenger\Entities\Assertions\AssertionFactory
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 *
 * PHP version 5
 *
 * @author    Bernhard Wick <[email protected]>
 * @copyright 2015 TechDivision GmbH - <[email protected]>
 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
 * @link      https://github.com/appserver-io/doppelgaenger
 * @link      http://www.appserver.io/
 */

namespace AppserverIo\Doppelgaenger\Entities\Assertions;

use AppserverIo\Doppelgaenger\Dictionaries\ReservedKeywords;
use AppserverIo\Doppelgaenger\Entities\Lists\AssertionList;
use AppserverIo\Doppelgaenger\Interfaces\StructureDefinitionInterface;
use AppserverIo\Psr\MetaobjectProtocol\Dbc\Assertions\AssertionInterface;
use AppserverIo\Psr\MetaobjectProtocol\Dbc\Annotations\Ensures;
use AppserverIo\Psr\MetaobjectProtocol\Dbc\Annotations\Invariant;
use AppserverIo\Psr\MetaobjectProtocol\Dbc\Annotations\Requires;

/**
 * This class will help instantiating the right assertion class for any given assertion array
 *
 * @author    Bernhard Wick <[email protected]>
 * @copyright 2015 TechDivision GmbH - <[email protected]>
 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
 * @link      https://github.com/appserver-io/doppelgaenger
 * @link      http://www.appserver.io/
 */
class AssertionFactory
{

    /**
     * All simple data types which are known but are aliased without an is_... function.
     *
     * @var string[] $scalarTypeMappings
     */
    protected $scalarTypeMappings = array(
        'boolean' => 'bool',
        'void' => 'null'
    );

    /**
     * All simple data types which are supported by PHP
     * and have a is_... function.
     *
     * @var string[] $validScalarTypes
     */
    protected $validScalarTypes = array(
        'array',
        'bool',
        'callable',
        'double',
        'float',
        'int',
        'integer',
        'long',
        'null',
        'numeric',
        'object',
        'real',
        'resource',
        'scalar',
        'string',
        'boolean',
        'void'
    );

    /**
     * The definition of the structure we are currently iterating through
     *
     * @var StructureDefinitionInterface $currentDefinition
     */
    protected $currentDefinition;

    /**
     * Parse assertions which are a collection of others
     *
     * @param string    $connective How are they combined? E.g. "||"
     * @param \stdClass $annotation The annotation to create chained assertions from
     *
     * @return \AppserverIo\Doppelgaenger\Entities\Assertions\ChainedAssertion
     */
    protected function createChainedAssertion($connective, \stdClass $annotation)
    {
        // Get all the parts of the string
        $assertionArray = explode(' ', $annotation->values['typeHint']);

        // Check all string parts for the | character
        $combinedPart = '';
        $combinedIndex = 0;
        foreach ($assertionArray as $key => $assertionPart) {
            // Check which part contains the | but does not only consist of it
            if ($this->filterOrCombinator($assertionPart) && trim($assertionPart) !== $connective) {
                $combinedPart = trim($assertionPart);
                $combinedIndex = $key;
                break;
            }
        }


        // Now we have to create all the separate assertions for each part of the $combinedPart string
        $assertionList = new AssertionList();
        foreach (explode($connective, $combinedPart) as $partString) {
            // Rebuild the assertion string with one partial string of the combined part
            $tmp = $assertionArray;
            $tmp[$combinedIndex] = $partString;
            $annotation->values['typeHint'] = $partString;
            $assertion = $this->getInstance($annotation);

            if (is_bool($assertion)) {
                continue;


            } else {
                $assertionList->add($assertion);
            }
        }

        // We got everything. Create a ChainedAssertion instance
        return new ChainedAssertion($assertionList, '||');
    }

    /**
     * Will parse assertions from a DocBlock comment piece. If $usedAnnotation is given we will concentrate on that
     * type of assertion only.
     * We might return false on error
     *
     * @param \stdClass $annotation The annotation to create simple assertions from
     *
     * @return boolean|\AppserverIo\Psr\MetaobjectProtocol\Dbc\Assertions\AssertionInterface
     *
     * @throws \AppserverIo\Doppelgaenger\Exceptions\ParserException
     */
    protected function createSimpleAssertion(\stdClass $annotation)
    {
        // Do we have an or connective aka "|"?
        if ($this->filterOrCombinator($annotation->values['typeHint'])) {
            // If we got invalid arguments then we will fail
            try {
                return $this->createChainedAssertion('|', $annotation);


            } catch (\InvalidArgumentException $e) {
                return false;
            }
        }

        // check what we have got
        $variable = $annotation->values['operand'];
        $type = $this->filterScalarType($annotation->values['typeHint']);
        $class = $this->filterType($annotation->values['typeHint']);
        $collectionType = $this->filterTypedCollection($annotation->values['typeHint']);

        // "mixed" is something we cannot work with, special case is a mixed typed collection which basically is an array
        if ($type === 'mixed' || $class === 'mixed') {
            return false;


        } elseif ($collectionType === 'mixed') {
            // we have a collection with mixed content, so basically an array
            $type = 'array';
            $collectionType = false;
        }

        if ($annotation->name === 'return') {
            $variable = ReservedKeywords::RESULT;
        }

        // Now we have to check what we got
        // First of all handle if we got a simple type
        if ($type !== false && !empty($type)) {
            return new TypeAssertion($variable, $type);


        } elseif ($class !== false && !empty($class)) {
            // seems we have an instance assertion here

            return new InstanceAssertion($variable, $class);


        } elseif ($collectionType !== false && !empty($collectionType)) {
            // seems we have a typed collection here

            return new TypedCollectionAssertion($variable, $collectionType);
        } else {
            return false;
        }
    }

    /**
     * Will filter for any referenced structure as a indicated type hinting of complex types
     *
     * @param string $string The string potentially containing a structure name
     *
     * @return boolean
     */
    protected function filterType($string)
    {
        // if the string is neither a scalar type, a typed collection and contains a namespace separator we assume a class

        // check if we know the simple type
        $validScalarTypes = array_flip($this->validScalarTypes);
        if (isset($validScalarTypes[strtolower($string)])) {
            return false;
        }

        // check if it might be a typed collection
        foreach (array('<', '>', '[', ']') as $needle) {
            if (strpos($string, $needle) !== false) {
                return false;
            }
        }

        // check if we have a namespace separator
        if (strpos($string, '\\') !== false) {
            return $string;
        }

        // check if we start with upper case and do only contain valid characters
        if (ctype_upper($string[0]) && preg_match('/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$/', $string)) {
            return $string;
        }

        // We found nothing; tell them.
        return false;
    }

    /**
     * Will filter any combinator defining a logical or-relation
     *
     * @param string $docString The DocBlock piece to search in
     *
     * @return boolean
     */
    protected function filterOrCombinator($docString)
    {
        if (strpos($docString, '|')) {
            return true;
        }

        // We found nothing; tell them.
        return false;
    }

    /**
     * Will filter for any simple type that may be used to indicate type hinting
     *
     * @param string $string The string potentially containing a scalar type hint
     *
     * @return boolean|string
     */
    protected function filterScalarType($string)
    {
        // check if we know the simple type
        $validScalarTypes = array_flip($this->validScalarTypes);
        if (!isset($validScalarTypes[$string])) {
            return false;
        }

        // if we have a mapping we have to return the mapped value instead
        if (isset($this->scalarTypeMappings[$string])) {
            $string = $this->scalarTypeMappings[$string];
        }

        // is it a scalar type we can check for?
        if (function_exists('is_' . $string)) {
            return $string;
        }

        // We found nothing; tell them.
        return false;
    }

    /**
     * Will filter for type safe collections of the form array<Type> or Type[]
     *
     * @param string $string The string potentially containing a type hint for a typed collection
     *
     * @return boolean|string
     */
    protected function filterTypedCollection($string)
    {
        $tmp = strpos($string, 'array<');
        if ($tmp !== false) {
            // we have a Java Generics like syntax

            if (strpos($string, '>') > $tmp) {
                $stringPiece = explode('array<', $string);
                $stringPiece = $stringPiece[1];

                return strstr($stringPiece, '>', true);
            }


        } elseif (strpos($string, '[]')) {
            // we have a common <TYPE>[] syntax

            return strstr($string, '[]', true);
        }

        // We found nothing; tell them.
        return false;
    }

    /**
     * Will return an instance of an assertion fitting the passed annotation object
     *
     * @param \stdClass $annotation Annotation object to generate assertion from
     *
     * @return \AppserverIo\Psr\MetaobjectProtocol\Dbc\Assertions\AssertionInterface
     * @throws \Exception
     */
    public function getInstance(\stdClass $annotation)
    {
        switch ($annotation->name) {
            case Ensures::ANNOTATION:
            case Invariant::ANNOTATION:
            case Requires::ANNOTATION:
                // complex annotations leave us with two possibilities: raw or custom assertions
                if (isset($annotation->values['type'], $annotation->values['constraint'])) {
                    // we need a custom assertion here
                    return $this->createAssertion($annotation->values['type'], $annotation->values['constraint']);
                }
                // RawAssertion is sufficient
                return new RawAssertion(array_pop($annotation->values));
                break;
switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}
            case 'param':
            case 'return':
                // simple assertions leave with a wide range of type assertions
                return $this->createSimpleAssertion($annotation);

                break;
switch ($x) {
    case 1:
        return 'foo';
        break; // This break is not necessary and can be left off.
}
            default:
                break;
        }
    }

    /**
     * Tries to create assertion of $assertionType
     *
     * @param string $assertionType the assertion type
     * @param string $constraint    the constraint to validate
     *
     * @return null|AssertionInterface
     * @throws \Exception
     */
    protected function createAssertion($assertionType, $constraint)
    {
        $assertionClassPath = $this->getAssertionClassPath($assertionType);
        if (null === $assertionClassPath) {
            throw new \Exception(
                sprintf(
                    'Cannot create complex assertion of type %s',
                    $assertionType
                )
            );
        }

        $potentialAssertion = new $assertionClassPath($constraint);
        if (!$potentialAssertion instanceof AssertionInterface) {
            throw new \Exception(
                sprintf(
                    'Specified assertion of type %s does not implement %s',
                    $potentialAssertion,
                    AssertionInterface::class
                )
            );
        }

        return $potentialAssertion;
    }

    /**
     * Resolves and returns the fully qualified namespace of $assertionType
     * or null if $assertionType cannot be resolved to an accessible class
     *
     * @param string $assertionType the assertion type
     *
     * @return null|string
     */
    protected function getAssertionClassPath($assertionType)
    {
        if (class_exists($assertionType)) {
            return $assertionType;
        }

        $potentialAssertion = $this->resolveUsedAssertionStructure($assertionType);
        if (class_exists($potentialAssertion)) {
            return $potentialAssertion;
        }

        $potentialAssertion = '\AppserverIo\Doppelgaenger\Entities\Assertions\\' . $assertionType;
        if (class_exists($potentialAssertion)) {
            return $potentialAssertion;
        }

        $potentialAssertion .= 'Assertion';
        if (class_exists($potentialAssertion)) {
            return $potentialAssertion;
        }

        return null;
    }

    /**
     * Iterates through the 'use' operators of the current structure and
     * returns the fully qualified namespace to the Assertion or null if none is found
     *
     * @param string $assertionType the assertion type
     *
     * @return null|string
     */
    protected function resolveUsedAssertionStructure($assertionType)
    {
        if (!$this->getCurrentDefinition()) {
            return null;
        }

        foreach ($this->getCurrentDefinition()->getUsedStructures() as $structure) {
            if (preg_match('/\w+$/', $structure, $matches) && $matches[0] === $assertionType) {
                return $structure;
            }
        }

        return null;
    }

    /**
     * Getter for all valid scalar types we can create assertions for
     *
     * @return string[]
     */
    public function getValidScalarTypes()
    {
        return $this->validScalarTypes;
    }

    /**
     * Sets the instance of the current definition
     *
     * @param StructureDefinitionInterface $currentDefinition the definition of the current structure
     *
     * @return void
     */
    public function setCurrentDefinition(StructureDefinitionInterface $currentDefinition)
    {
        $this->currentDefinition = $currentDefinition;
    }

    /**
     * Returns the instance of the current definition
     *
     * @return null|StructureDefinitionInterface
     */
    public function getCurrentDefinition()
    {
        return $this->currentDefinition;
    }
}


1			<?php
2
3			/**
4			* \AppserverIo\Doppelgaenger\Entities\Assertions\AssertionFactory
5			*
6			* NOTICE OF LICENSE
7			*
8			* This source file is subject to the Open Software License (OSL 3.0)
9			* that is available through the world-wide-web at this URL:
10			* http://opensource.org/licenses/osl-3.0.php
11			*
12			* PHP version 5
13			*
14			* @author Bernhard Wick <[email protected]>
15			* @copyright 2015 TechDivision GmbH - <[email protected]>
16			* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
17			* @link https://github.com/appserver-io/doppelgaenger
18			* @link http://www.appserver.io/
19			*/
20
21			namespace AppserverIo\Doppelgaenger\Entities\Assertions;
22
23			use AppserverIo\Doppelgaenger\Dictionaries\ReservedKeywords;
24			use AppserverIo\Doppelgaenger\Entities\Lists\AssertionList;
25			use AppserverIo\Doppelgaenger\Interfaces\StructureDefinitionInterface;
26			use AppserverIo\Psr\MetaobjectProtocol\Dbc\Assertions\AssertionInterface;
27			use AppserverIo\Psr\MetaobjectProtocol\Dbc\Annotations\Ensures;
28			use AppserverIo\Psr\MetaobjectProtocol\Dbc\Annotations\Invariant;
29			use AppserverIo\Psr\MetaobjectProtocol\Dbc\Annotations\Requires;
30
31			/**
32			* This class will help instantiating the right assertion class for any given assertion array
33			*
34			* @author Bernhard Wick <[email protected]>
35			* @copyright 2015 TechDivision GmbH - <[email protected]>
36			* @license http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
37			* @link https://github.com/appserver-io/doppelgaenger
38			* @link http://www.appserver.io/
39			*/
40			class AssertionFactory
41			{
42
43			/**
44			* All simple data types which are known but are aliased without an is_... function.
45			*
46			* @var string[] $scalarTypeMappings
47			*/
48			protected $scalarTypeMappings = array(
49			'boolean' => 'bool',
50			'void' => 'null'
51			);
52
53			/**
54			* All simple data types which are supported by PHP
55			* and have a is_... function.
56			*
57			* @var string[] $validScalarTypes
58			*/
59			protected $validScalarTypes = array(
60			'array',
61			'bool',
62			'callable',
63			'double',
64			'float',
65			'int',
66			'integer',
67			'long',
68			'null',
69			'numeric',
70			'object',
71			'real',
72			'resource',
73			'scalar',
74			'string',
75			'boolean',
76			'void'
77			);
78
79			/**
80			* The definition of the structure we are currently iterating through
81			*
82			* @var StructureDefinitionInterface $currentDefinition
83			*/
84			protected $currentDefinition;
85
86			/**
87			* Parse assertions which are a collection of others
88			*
89			* @param string $connective How are they combined? E.g. "\|\|"
90			* @param \stdClass $annotation The annotation to create chained assertions from
91			*
92			* @return \AppserverIo\Doppelgaenger\Entities\Assertions\ChainedAssertion
93			*/
94			protected function createChainedAssertion($connective, \stdClass $annotation)
95			{
96			// Get all the parts of the string
97			$assertionArray = explode(' ', $annotation->values['typeHint']);
98
99			// Check all string parts for the \| character
100			$combinedPart = '';
101			$combinedIndex = 0;
102			foreach ($assertionArray as $key => $assertionPart) {
103			// Check which part contains the \| but does not only consist of it
104			if ($this->filterOrCombinator($assertionPart) && trim($assertionPart) !== $connective) {
105			$combinedPart = trim($assertionPart);
106			$combinedIndex = $key;
107			break;
108			}
109			}
110
111
112			// Now we have to create all the separate assertions for each part of the $combinedPart string
113			$assertionList = new AssertionList();
114			foreach (explode($connective, $combinedPart) as $partString) {
115			// Rebuild the assertion string with one partial string of the combined part
116			$tmp = $assertionArray;
117			$tmp[$combinedIndex] = $partString;
118			$annotation->values['typeHint'] = $partString;
119			$assertion = $this->getInstance($annotation);
120
121			if (is_bool($assertion)) {
122			continue;
123
			0 ignored issues – show Coding Style introduced 2016-12-02 23:50 UTC by Report Bug Copy Issue Report Blank line found at end of control structure Loading history...
124			} else {
125			$assertionList->add($assertion);
126			}
127			}
128
129			// We got everything. Create a ChainedAssertion instance
130			return new ChainedAssertion($assertionList, '\|\|');
131			}
132
133			/**
134			* Will parse assertions from a DocBlock comment piece. If $usedAnnotation is given we will concentrate on that
135			* type of assertion only.
136			* We might return false on error
137			*
138			* @param \stdClass $annotation The annotation to create simple assertions from
139			*
140			* @return boolean\|\AppserverIo\Psr\MetaobjectProtocol\Dbc\Assertions\AssertionInterface
141			*
142			* @throws \AppserverIo\Doppelgaenger\Exceptions\ParserException
143			*/
144			protected function createSimpleAssertion(\stdClass $annotation)
145			{
146			// Do we have an or connective aka "\|"?
147			if ($this->filterOrCombinator($annotation->values['typeHint'])) {
148			// If we got invalid arguments then we will fail
149			try {
150			return $this->createChainedAssertion('\|', $annotation);
151
			0 ignored issues – show Coding Style introduced 2016-12-02 23:50 UTC by Report Bug Copy Issue Report Blank line found at end of control structure Loading history...
152			} catch (\InvalidArgumentException $e) {
153			return false;
154			}
155			}
156
157			// check what we have got
158			$variable = $annotation->values['operand'];
159			$type = $this->filterScalarType($annotation->values['typeHint']);
160			$class = $this->filterType($annotation->values['typeHint']);
161			$collectionType = $this->filterTypedCollection($annotation->values['typeHint']);
162
163			// "mixed" is something we cannot work with, special case is a mixed typed collection which basically is an array
164			if ($type === 'mixed' \|\| $class === 'mixed') {
165			return false;
166
			0 ignored issues – show Coding Style introduced 2016-12-02 23:50 UTC by Report Bug Copy Issue Report Blank line found at end of control structure Loading history...
167			} elseif ($collectionType === 'mixed') {
168			// we have a collection with mixed content, so basically an array
169			$type = 'array';
170			$collectionType = false;
171			}
172
173			if ($annotation->name === 'return') {
174			$variable = ReservedKeywords::RESULT;
175			}
176
177			// Now we have to check what we got
178			// First of all handle if we got a simple type
179			if ($type !== false && !empty($type)) {
180			return new TypeAssertion($variable, $type);
181
			0 ignored issues – show Coding Style introduced 2016-12-02 23:50 UTC by Report Bug Copy Issue Report Blank line found at end of control structure Loading history...
182			} elseif ($class !== false && !empty($class)) {
183			// seems we have an instance assertion here
184
185			return new InstanceAssertion($variable, $class);
186
			0 ignored issues – show Coding Style introduced 2016-12-02 23:50 UTC by Report Bug Copy Issue Report Blank line found at end of control structure Loading history...
187			} elseif ($collectionType !== false && !empty($collectionType)) {
188			// seems we have a typed collection here
189
190			return new TypedCollectionAssertion($variable, $collectionType);
191			} else {
192			return false;
193			}
194			}
195
196			/**
197			* Will filter for any referenced structure as a indicated type hinting of complex types
198			*
199			* @param string $string The string potentially containing a structure name
200			*
201			* @return boolean
202			*/
203			protected function filterType($string)
204			{
205			// if the string is neither a scalar type, a typed collection and contains a namespace separator we assume a class
206
207			// check if we know the simple type
208			$validScalarTypes = array_flip($this->validScalarTypes);
209			if (isset($validScalarTypes[strtolower($string)])) {
210			return false;
211			}
212
213			// check if it might be a typed collection
214			foreach (array('<', '>', '[', ']') as $needle) {
215			if (strpos($string, $needle) !== false) {
216			return false;
217			}
218			}
219
220			// check if we have a namespace separator
221			if (strpos($string, '\\') !== false) {
222			return $string;
223			}
224
225			// check if we start with upper case and do only contain valid characters
226			if (ctype_upper($string[0]) && preg_match('/^[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*$/', $string)) {
227			return $string;
228			}
229
230			// We found nothing; tell them.
231			return false;
232			}
233
234			/**
235			* Will filter any combinator defining a logical or-relation
236			*
237			* @param string $docString The DocBlock piece to search in
238			*
239			* @return boolean
240			*/
241			protected function filterOrCombinator($docString)
242			{
243			if (strpos($docString, '\|')) {
244			return true;
245			}
246
247			// We found nothing; tell them.
248			return false;
249			}
250
251			/**
252			* Will filter for any simple type that may be used to indicate type hinting
253			*
254			* @param string $string The string potentially containing a scalar type hint
255			*
256			* @return boolean\|string
257			*/
258			protected function filterScalarType($string)
259			{
260			// check if we know the simple type
261			$validScalarTypes = array_flip($this->validScalarTypes);
262			if (!isset($validScalarTypes[$string])) {
263			return false;
264			}
265
266			// if we have a mapping we have to return the mapped value instead
267			if (isset($this->scalarTypeMappings[$string])) {
268			$string = $this->scalarTypeMappings[$string];
269			}
270
271			// is it a scalar type we can check for?
272			if (function_exists('is_' . $string)) {
273			return $string;
274			}
275
276			// We found nothing; tell them.
277			return false;
278			}
279
280			/**
281			* Will filter for type safe collections of the form array<Type> or Type[]
282			*
283			* @param string $string The string potentially containing a type hint for a typed collection
284			*
285			* @return boolean\|string
286			*/
287			protected function filterTypedCollection($string)
288			{
289			$tmp = strpos($string, 'array<');
290			if ($tmp !== false) {
291			// we have a Java Generics like syntax
292
293			if (strpos($string, '>') > $tmp) {
294			$stringPiece = explode('array<', $string);
295			$stringPiece = $stringPiece[1];
296
297			return strstr($stringPiece, '>', true);
298			}
299
			0 ignored issues – show Coding Style introduced 2016-12-02 23:50 UTC by Report Bug Copy Issue Report Blank line found at end of control structure Loading history...
300			} elseif (strpos($string, '[]')) {
301			// we have a common <TYPE>[] syntax
302
303			return strstr($string, '[]', true);
304			}
305
306			// We found nothing; tell them.
307			return false;
308			}
309
310			/**
311			* Will return an instance of an assertion fitting the passed annotation object
312			*
313			* @param \stdClass $annotation Annotation object to generate assertion from
314			*
315			* @return \AppserverIo\Psr\MetaobjectProtocol\Dbc\Assertions\AssertionInterface
316			* @throws \Exception
317			*/
318			public function getInstance(\stdClass $annotation)
319			{
320			switch ($annotation->name) {
321			case Ensures::ANNOTATION:
322			case Invariant::ANNOTATION:
323			case Requires::ANNOTATION:
324			// complex annotations leave us with two possibilities: raw or custom assertions
325			if (isset($annotation->values['type'], $annotation->values['constraint'])) {
326			// we need a custom assertion here
327			return $this->createAssertion($annotation->values['type'], $annotation->values['constraint']);
328			}
329			// RawAssertion is sufficient
330			return new RawAssertion(array_pop($annotation->values));
331			break;
			0 ignored issues – show Unused Code introduced 2017-12-04 08:43 UTC by Report Bug Copy Issue Report `break` is not strictly necessary here and could be removed. The `break` statement is not necessary if it is preceded for example by a `return` statement: switch ($x) { case 1: return 'foo'; break; // This break is not necessary and can be left off. } If you would like to keep this construct to be consistent with other `case` statements, you can safely mark this issue as a false-positive. Loading history...
332			case 'param':
333			case 'return':
334			// simple assertions leave with a wide range of type assertions
335			return $this->createSimpleAssertion($annotation);
			0 ignored issues – show Comprehensibility Best Practice introduced 2017-11-30 11:24 UTC by Report Bug Copy Issue Report The expression `$this->createSimpleAssertion($annotation);` of type `AppserverIo\Doppelgaenge...ypedCollectionAssertion` adds `false` to the return on line 335 which is incompatible with the return type documented by `AppserverIo\Doppelgaenge...ionFactory::getInstance` of type `AppserverIo\Psr\Metaobje...AssertionInterface\|null`. It seems like you forgot to handle an error condition. Loading history...
336			break;
			0 ignored issues – show Unused Code introduced 2016-01-05 11:21 UTC by Report Bug Copy Issue Report `break` is not strictly necessary here and could be removed. The `break` statement is not necessary if it is preceded for example by a `return` statement: switch ($x) { case 1: return 'foo'; break; // This break is not necessary and can be left off. } If you would like to keep this construct to be consistent with other `case` statements, you can safely mark this issue as a false-positive. Loading history...
337			default:
338			break;
339			}
340			}
341
342			/**
343			* Tries to create assertion of $assertionType
344			*
345			* @param string $assertionType the assertion type
346			* @param string $constraint the constraint to validate
347			*
348			* @return null\|AssertionInterface
349			* @throws \Exception
350			*/
351			protected function createAssertion($assertionType, $constraint)
352			{
353			$assertionClassPath = $this->getAssertionClassPath($assertionType);
354			if (null === $assertionClassPath) {
355			throw new \Exception(
356			sprintf(
357			'Cannot create complex assertion of type %s',
358			$assertionType
359			)
360			);
361			}
362
363			$potentialAssertion = new $assertionClassPath($constraint);
364			if (!$potentialAssertion instanceof AssertionInterface) {
365			throw new \Exception(
366			sprintf(
367			'Specified assertion of type %s does not implement %s',
368			$potentialAssertion,
369			AssertionInterface::class
370			)
371			);
372			}
373
374			return $potentialAssertion;
375			}
376
377			/**
378			* Resolves and returns the fully qualified namespace of $assertionType
379			* or null if $assertionType cannot be resolved to an accessible class
380			*
381			* @param string $assertionType the assertion type
382			*
383			* @return null\|string
384			*/
385			protected function getAssertionClassPath($assertionType)
386			{
387			if (class_exists($assertionType)) {
388			return $assertionType;
389			}
390
391			$potentialAssertion = $this->resolveUsedAssertionStructure($assertionType);
392			if (class_exists($potentialAssertion)) {
393			return $potentialAssertion;
394			}
395
396			$potentialAssertion = '\AppserverIo\Doppelgaenger\Entities\Assertions\\' . $assertionType;
397			if (class_exists($potentialAssertion)) {
398			return $potentialAssertion;
399			}
400
401			$potentialAssertion .= 'Assertion';
402			if (class_exists($potentialAssertion)) {
403			return $potentialAssertion;
404			}
405
406			return null;
407			}
408
409			/**
410			* Iterates through the 'use' operators of the current structure and
411			* returns the fully qualified namespace to the Assertion or null if none is found
412			*
413			* @param string $assertionType the assertion type
414			*
415			* @return null\|string
416			*/
417			protected function resolveUsedAssertionStructure($assertionType)
418			{
419			if (!$this->getCurrentDefinition()) {
420			return null;
421			}
422
423			foreach ($this->getCurrentDefinition()->getUsedStructures() as $structure) {
424			if (preg_match('/\w+$/', $structure, $matches) && $matches[0] === $assertionType) {
425			return $structure;
426			}
427			}
428
429			return null;
430			}
431
432			/**
433			* Getter for all valid scalar types we can create assertions for
434			*
435			* @return string[]
436			*/
437			public function getValidScalarTypes()
438			{
439			return $this->validScalarTypes;
440			}
441
442			/**
443			* Sets the instance of the current definition
444			*
445			* @param StructureDefinitionInterface $currentDefinition the definition of the current structure
446			*
447			* @return void
448			*/
449			public function setCurrentDefinition(StructureDefinitionInterface $currentDefinition)
450			{
451			$this->currentDefinition = $currentDefinition;
452			}
453
454			/**
455			* Returns the instance of the current definition
456			*
457			* @return null\|StructureDefinitionInterface
458			*/
459			public function getCurrentDefinition()
460			{
461			return $this->currentDefinition;
462			}
463			}
464

appserver-io / doppelgaenger

Pull Request — master (#42)

AssertionFactory::getInstance() C

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