ReflectionFile::getFilename() - Code Metrics - Inspection of "Merge branch 'develop'" - spiral/components - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 9df40c...785346 )

by Anton

created 2015-12-23 16:33 UTC

ReflectionFile::getFilename() A

↳ Parent: ReflectionFile::getClasses()

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	4
rs	10
cc	1
eloc	2
nc	1
nop	0

<?php
/**
 * Spiral Framework.
 *
 * @license   MIT
 * @author    Anton Titov (Wolfy-J)
 */
namespace Spiral\Tokenizer\Reflections;

use Spiral\Core\Component;
use Spiral\Core\Traits\SaturateTrait;
use Spiral\Tokenizer\ReflectionFileInterface;
use Spiral\Tokenizer\TokenizerInterface;

/**
 * File reflections can fetch information about classes, interfaces, functions and traits declared
 * in file. In addition file reflection provides ability to fetch and describe every method/function
 * call.
 */
class ReflectionFile extends Component implements ReflectionFileInterface
{
    /**
     * Development sugar.
     */
    use SaturateTrait;

    /**
     * Namespace separator.
     */
    const NS_SEPARATOR = '\\';

    /**
     * Constants for convenience.
     */
    const TOKEN_TYPE = TokenizerInterface::TYPE;
    const TOKEN_CODE = TokenizerInterface::CODE;
    const TOKEN_LINE = TokenizerInterface::LINE;

    /**
     * Opening and closing token ids.
     */
    const O_TOKEN = 0;
    const C_TOKEN = 1;

    /**
     * Namespace uses.
     */
    const N_USES = 2;

    /**
     * Set of tokens required to detect classes, traits, interfaces and function declarations. We
     * don't need any other token for that.
     *
     * @var array
     */
    static private $processTokens = [
        '{',
        '}',
        ';',
        T_PAAMAYIM_NEKUDOTAYIM,
        T_NAMESPACE,
        T_STRING,
        T_CLASS,
        T_INTERFACE,
        T_TRAIT,
        T_FUNCTION,
        T_NS_SEPARATOR,
        T_INCLUDE,
        T_INCLUDE_ONCE,
        T_REQUIRE,
        T_REQUIRE_ONCE,
        T_USE,
        T_AS
    ];

    /**
     * @var string
     */
    private $filename = '';

    /**
     * Parsed tokens array.
     *
     * @invisible
     * @var array
     */
    private $tokens = [];

    /**
     * Total tokens count.
     *
     * @invisible
     * @var int
     */
    private $countTokens = 0;

    /**
     * Indicator that file has external includes.
     *
     * @invisible
     * @var bool
     */
    private $hasIncludes = false;

    /**
     * Namespaces used in file and their token positions.
     *
     * @invisible
     * @var array
     */
    private $namespaces = [];

    /**
     * Declarations of classes, interfaces and traits.
     *
     * @invisible
     * @var array
     */
    private $declarations = [];

    /**
     * Declarations of new functions.
     *
     * @invisible
     * @var array
     */
    private $functions = [];

    /**
     * Every found method/function invocation.
     *
     * @invisible
     * @var ReflectionInvocation[]
     */
    private $invocations = [];

    /**
     * @param array $tokens
     * @param array $cache Tokenizer can construct reflection with pre-created cache to speed up
     *                     indexation.
     */
    public function __construct(array $tokens, array $cache = [])
    {
        $this->tokens = $tokens;

        if (!empty($cache)) {
            //Locating file schema from file, can speed up class location a LOT
            $this->importSchema($cache);

            return;
        }

        //Looking for declarations
        $this->locateDeclarations();
    }

    /**
     * {@inheritdoc}
     */
    public function getFunctions()
    {
        return array_keys($this->functions);
    }

    /**
     * {@inheritdoc}
     */
    public function getClasses()
    {
        if (!isset($this->declarations['T_CLASS'])) {
            return [];
        }

        return array_keys($this->declarations['T_CLASS']);
    }

    /**
     * {@inheritdoc}
     */
    public function getTraits()
    {
        if (!isset($this->declarations['T_TRAIT'])) {
            return [];
        }

        return array_keys($this->declarations['T_TRAIT']);
    }

    /**
     * {@inheritdoc}
     */
    public function getInterfaces()
    {
        if (!isset($this->declarations['T_INTERFACE'])) {
            return [];
        }

        return array_keys($this->declarations['T_INTERFACE']);
    }

    /**
     * Get list of tokens associated with given file.
     *
     * @return array
     */
    public function getTokens()
    {
        return $this->tokens;
    }

    /**
     * {@inheritdoc}
     */
    public function hasIncludes()
    {
        return $this->hasIncludes;
    }

    /**
     * {@inheritdoc}
     */
    public function getInvocations()
    {
        if (empty($this->invocations)) {
            $this->locateInvocations($this->getTokens());
        }

        return $this->invocations;
    }

    /**
     * Export found declaration as array for caching purposes.
     *
     * @return array
     */
    public function exportSchema()
    {
        return [$this->hasIncludes, $this->declarations, $this->functions, $this->namespaces];
    }

    /**
     * Import cached reflection schema.
     *
     * @param array $cache
     */
    protected function importSchema(array $cache)
    {
        list($this->hasIncludes, $this->declarations, $this->functions, $this->namespaces) = $cache;
    }

    /**
     * Locate every class, interface, trait or function definition.
     */
    protected function locateDeclarations()
    {
        foreach ($this->getTokens() as $tokenID => $token) {
            if (!in_array($token[self::TOKEN_TYPE], self::$processTokens)) {
                continue;
            }

            switch ($token[self::TOKEN_TYPE]) {
                case T_NAMESPACE:
                    $this->registerNamespace($tokenID);
                    break;

                case T_USE:
                    $this->registerUse($tokenID);
                    break;

                case T_FUNCTION:
                    $this->registerFunction($tokenID);
                    break;

                case T_CLASS:
                case T_TRAIT;
switch ($expr) {
    case "A": { //wrong
        doSomething();
        break;
    }
    case "B": //right
        doSomething();
        break;
}
                case T_INTERFACE:
                    if (
                        $this->tokens[$tokenID][self::TOKEN_TYPE] == T_CLASS
                        && isset($this->tokens[$tokenID - 1])
                        && $this->tokens[$tokenID - 1][self::TOKEN_TYPE] == T_PAAMAYIM_NEKUDOTAYIM
                    ) {
                        //PHP5.5 ClassName::class constant
                        continue;
                    }

                    $this->registerDeclaration($tokenID, $token[self::TOKEN_TYPE]);
                    break;

                case T_INCLUDE:
                case T_INCLUDE_ONCE:
                case T_REQUIRE:
                case T_REQUIRE_ONCE:
                    $this->hasIncludes = true;
            }
        }

        //Dropping empty namespace
        if (isset($this->namespaces[''])) {
            $this->namespaces['\\'] = $this->namespaces[''];
            unset($this->namespaces['']);
        }
    }

    /**
     * Handle namespace declaration.
     *
     * @param int $tokenID
     */
    private function registerNamespace($tokenID)
    {
        $namespace = '';
        $localID = $tokenID + 1;

        do {
            $token = $this->tokens[$localID++];
            if ($token[self::TOKEN_CODE] == '{') {
                break;
            }

            $namespace .= $token[self::TOKEN_CODE];
        } while (
            isset($this->tokens[$localID])
            && $this->tokens[$localID][self::TOKEN_CODE] != '{'
            && $this->tokens[$localID][self::TOKEN_CODE] != ';'
        );

        //Whitespaces
        $namespace = trim($namespace);

        $uses = [];
        if (isset($this->namespaces[$namespace])) {
            $uses = $this->namespaces[$namespace];
        }

        if ($this->tokens[$localID][self::TOKEN_CODE] == ';') {
            $endingID = count($this->tokens) - 1;
        } else {
            $endingID = $this->endingToken($tokenID);
        }

        $this->namespaces[$namespace] = [
            self::O_TOKEN => $tokenID,
            self::C_TOKEN => $endingID,
            self::N_USES  => $uses
        ];
    }

    /**
     * Handle use (import class from another namespace).
     *
     * @param int $tokenID
     */
    private function registerUse($tokenID)
    {
        $namespace = rtrim($this->activeNamespace($tokenID), '\\');

        $class = '';
        $localAlias = null;
        for ($localID = $tokenID + 1; $this->tokens[$localID][self::TOKEN_CODE] != ';'; $localID++) {
            if ($this->tokens[$localID][self::TOKEN_TYPE] == T_AS) {
                $localAlias = '';
                continue;
            }

            if ($localAlias === null) {
                $class .= $this->tokens[$localID][self::TOKEN_CODE];
            } else {
                $localAlias .= $this->tokens[$localID][self::TOKEN_CODE];
            }
        }

        if (empty($localAlias)) {
            $names = explode('\\', $class);
            $localAlias = end($names);
        }

        $this->namespaces[$namespace][self::N_USES][trim($localAlias)] = trim($class);
    }

    /**
     * Handle function declaration (function creation).
     *
     * @param int $tokenID
     */
    private function registerFunction($tokenID)
    {
        foreach ($this->declarations as $declarations) {
            foreach ($declarations as $location) {
                if ($tokenID >= $location[self::O_TOKEN] && $tokenID <= $location[self::C_TOKEN]) {
                    //We are inside class, function is method
                    return;
                }
            }
        }

        $localID = $tokenID + 1;
        while ($this->tokens[$localID][self::TOKEN_TYPE] != T_STRING) {
            //Fetching function name
            $localID++;
        }

        $name = $this->tokens[$localID][self::TOKEN_CODE];
        if (!empty($namespace = $this->activeNamespace($tokenID))) {

            $name = $namespace . self::NS_SEPARATOR . $name;
        }

        $this->functions[$name] = [
            self::O_TOKEN => $tokenID,
            self::C_TOKEN => $this->endingToken($tokenID)
        ];
    }

    /**
     * Handle declaration of class, trait of interface. Declaration will be stored under it's token
     * type in declarations array.
     *
     * @param int $tokenID
     * @param int $tokenType
     */
    private function registerDeclaration($tokenID, $tokenType)
    {
        $localID = $tokenID + 1;
        while ($this->tokens[$localID][self::TOKEN_TYPE] != T_STRING) {
            $localID++;
        }

        $name = $this->tokens[$localID][self::TOKEN_CODE];
        if (!empty($namespace = $this->activeNamespace($tokenID))) {

            $name = $namespace . self::NS_SEPARATOR . $name;
        }

        $this->declarations[token_name($tokenType)][$name] = [
            self::O_TOKEN => $tokenID,
            self::C_TOKEN => $this->endingToken($tokenID)
        ];
    }

    /**
     * Locate every function or static method call (including $this calls).
     *
     * @param array $tokens
     * @param int   $invocationLevel
     */
    private function locateInvocations(array $tokens, $invocationLevel = 0)
    {
        //Multiple "(" and ")" statements nested.
        $level = 0;

        //Skip all tokens until next function
        $ignore = false;

        //Were function was found
        $invocationTID = 0;

        //Parsed arguments and their first token id
        $arguments = [];
        $argumentsTID = false;

        //Tokens used to re-enable token detection
        $stopTokens = [T_STRING, T_WHITESPACE, T_DOUBLE_COLON, T_OBJECT_OPERATOR, T_NS_SEPARATOR];
        foreach ($tokens as $tokenID => $token) {
            $tokenType = $token[self::TOKEN_TYPE];

            //We are not indexing function declarations or functions called from $objects.
            if ($tokenType == T_FUNCTION || $tokenType == T_OBJECT_OPERATOR || $tokenType == T_NEW) {
                if (
                    empty($argumentsTID)
                    && (
                        empty($invocationTID)
                        || $this->getSource($invocationTID, $tokenID - 1) != '$this'
                    )
                ) {
                    //Not a call, function declaration, or object method
                    $ignore = true;
                    continue;
                }
            } elseif ($ignore) {
                if (!in_array($tokenType, $stopTokens)) {
                    //Returning to search
                    $ignore = false;
                }
                continue;
            }

            //We are inside function, and there is "(", indexing arguments.
            if (!empty($invocationTID) && ($tokenType == '(' || $tokenType == '[')) {
                if (empty($argumentsTID)) {
                    $argumentsTID = $tokenID;
                }

                $level++;
                if ($level != 1) {
                    //Not arguments beginning, but arguments part
                    $arguments[$tokenID] = $token;
                }

                continue;
            }

            //We are inside function arguments and ")" met.
            if (!empty($invocationTID) && ($tokenType == ')' || $tokenType == ']')) {
                $level--;
                if ($level == -1) {
                    $invocationTID = false;
                    $level = 0;
                    continue;
                }

                //Function fully indexed, we can process it now.
                if ($level == 0) {
                    $this->registerInvocation(
                        $invocationTID,
                        $argumentsTID,
                        $tokenID,
                        $arguments,
                        $invocationLevel
                    );

                    //Closing search
                    $arguments = [];
                    $argumentsTID = $invocationTID = false;
                } else {
                    //Not arguments beginning, but arguments part
                    $arguments[$tokenID] = $token;
                }

                continue;
            }

            //Still inside arguments.
            if (!empty($invocationTID) && !empty($level)) {
                $arguments[$tokenID] = $token;
                continue;
            }

            //Nothing valuable to remember, will be parsed later.
            if (!empty($invocationTID) && in_array($tokenType, $stopTokens)) {
                continue;
            }

            //Seems like we found function/method call
            if (
                $tokenType == T_STRING
                || $tokenType == T_STATIC
                || $tokenType == T_NS_SEPARATOR
                || ($tokenType == T_VARIABLE && $token[self::TOKEN_CODE] == '$this')
            ) {
                $invocationTID = $tokenID;
                $level = 0;

                $argumentsTID = false;
                continue;
            }

            //Returning to search
            $invocationTID = false;
            $arguments = [];
        }
    }

    /**
     * Registering invocation.
     *
     * @param int   $invocationID
     * @param int   $argumentsID
     * @param int   $endID
     * @param array $arguments
     * @param int   $invocationLevel
     */
    private function registerInvocation(
        $invocationID,
        $argumentsID,
        $endID,
        array $arguments,
        $invocationLevel
    ) {
        //Nested invocations
        $this->locateInvocations($arguments, $invocationLevel + 1);

        list($class, $operator, $name) = $this->fetchContext($invocationID, $argumentsID);
        if (!empty($operator) && empty($class)) {
            //Non detectable
            return;
        }

        $this->invocations[] = new ReflectionInvocation(
            $this->filename,
            $this->lineNumber($invocationID),
            $class,
            $operator,
            $name,
            ReflectionArgument::locateArguments($arguments),
            $this->getSource($invocationID, $endID),
            $invocationLevel
        );
    }

    /**
     * Fetching invocation context.
     *
     * @param int $invocationTID
     * @param int $argumentsTID
     * @return array
     */
    private function fetchContext($invocationTID, $argumentsTID)
    {
        $class = $operator = '';
        $name = trim($this->getSource($invocationTID, $argumentsTID), '( ');

        //Let's try to fetch all information we need
        if (strpos($name, '->') !== false) {
            $operator = '->';
        } elseif (strpos($name, '::') !== false) {
            $operator = '::';
        }

        if (!empty($operator)) {
            list($class, $name) = explode($operator, $name);

            //We now have to clarify class name
            if (in_array($class, ['self', 'static', '$this'])) {
                $class = $this->activeDeclaration($invocationTID);
            }
        }

        return [$class, $operator, $name];
    }

    /**
     * Get declaration which is active in given token position.
     *
     * @param int $tokenID
     * @return string|null
     */
    private function activeDeclaration($tokenID)
    {
        foreach ($this->declarations as $declarations) {
            foreach ($declarations as $name => $position) {
                if ($tokenID >= $position[self::O_TOKEN] && $tokenID <= $position[self::C_TOKEN]) {
                    return $name;
                }
            }
        }

        //Can not be detected
        return null;
    }

    /**
     * Get namespace name active at specified token position.
     *
     * @param int $tokenID
     * @return string
     */
    private function activeNamespace($tokenID)
    {
        foreach ($this->namespaces as $namespace => $position) {
            if ($tokenID >= $position[self::O_TOKEN] && $tokenID <= $position[self::C_TOKEN]) {
                return $namespace;
            }
        }

        //Seems like no namespace declaration
        $this->namespaces[''] = [
            self::O_TOKEN => 0,
            self::C_TOKEN => count($this->tokens),
            self::N_USES  => []
        ];

        return '';
    }

    /**
     * Find token ID of ending brace.
     *
     * @param int $tokenID
     * @return mixed
     */
    private function endingToken($tokenID)
    {
        $level = null;
        for ($localID = $tokenID; $localID < $this->countTokens; $localID++) {
            $token = $this->tokens[$localID];
            if ($token[self::TOKEN_CODE] == '{') {
                $level++;
                continue;
            }

            if ($token[self::TOKEN_CODE] == '}') {
                $level--;
            }

            if ($level === 0) {
                break;
            }
        }

        return $localID;
    }

    /**
     * Get line number associated with token.
     *
     * @param int $tokenID
     * @return int
     */
    private function lineNumber($tokenID)
    {
        while (empty($this->tokens[$tokenID][self::TOKEN_LINE])) {
            $tokenID--;
        }

        return $this->tokens[$tokenID][self::TOKEN_LINE];
    }

    /**
     * Get source located between two tokens.
     *
     * @param int $startID
     * @param int $endID
     * @return string
     */
    private function getSource($startID, $endID)
    {
        $result = '';
        for ($tokenID = $startID; $tokenID <= $endID; $tokenID++) {
            //Collecting function usage source
            $result .= $this->tokens[$tokenID][self::TOKEN_CODE];
        }

        return $result;
    }
}

1		<?php
2		/**
3		* Spiral Framework.
4		*
5		* @license MIT
6		* @author Anton Titov (Wolfy-J)
7		*/
8		namespace Spiral\Tokenizer\Reflections;
9
10		use Spiral\Core\Component;
11		use Spiral\Core\Traits\SaturateTrait;
12		use Spiral\Tokenizer\ReflectionFileInterface;
13		use Spiral\Tokenizer\TokenizerInterface;
14
15		/**
16		* File reflections can fetch information about classes, interfaces, functions and traits declared
17		* in file. In addition file reflection provides ability to fetch and describe every method/function
18		* call.
19		*/
20		class ReflectionFile extends Component implements ReflectionFileInterface
21		{
22		/**
23		* Development sugar.
24		*/
25		use SaturateTrait;
26
27		/**
28		* Namespace separator.
29		*/
30		const NS_SEPARATOR = '\\';
31
32		/**
33		* Constants for convenience.
34		*/
35		const TOKEN_TYPE = TokenizerInterface::TYPE;
36		const TOKEN_CODE = TokenizerInterface::CODE;
37		const TOKEN_LINE = TokenizerInterface::LINE;
38
39		/**
40		* Opening and closing token ids.
41		*/
42		const O_TOKEN = 0;
43		const C_TOKEN = 1;
44
45		/**
46		* Namespace uses.
47		*/
48		const N_USES = 2;
49
50		/**
51		* Set of tokens required to detect classes, traits, interfaces and function declarations. We
52		* don't need any other token for that.
53		*
54		* @var array
55		*/
56		static private $processTokens = [
57		'{',
58		'}',
59		';',
60		T_PAAMAYIM_NEKUDOTAYIM,
61		T_NAMESPACE,
62		T_STRING,
63		T_CLASS,
64		T_INTERFACE,
65		T_TRAIT,
66		T_FUNCTION,
67		T_NS_SEPARATOR,
68		T_INCLUDE,
69		T_INCLUDE_ONCE,
70		T_REQUIRE,
71		T_REQUIRE_ONCE,
72		T_USE,
73		T_AS
74		];
75
76		/**
77		* @var string
78		*/
79		private $filename = '';
80
81		/**
82		* Parsed tokens array.
83		*
84		* @invisible
85		* @var array
86		*/
87		private $tokens = [];
88
89		/**
90		* Total tokens count.
91		*
92		* @invisible
93		* @var int
94		*/
95		private $countTokens = 0;
96
97		/**
98		* Indicator that file has external includes.
99		*
100		* @invisible
101		* @var bool
102		*/
103		private $hasIncludes = false;
104
105		/**
106		* Namespaces used in file and their token positions.
107		*
108		* @invisible
109		* @var array
110		*/
111		private $namespaces = [];
112
113		/**
114		* Declarations of classes, interfaces and traits.
115		*
116		* @invisible
117		* @var array
118		*/
119		private $declarations = [];
120
121		/**
122		* Declarations of new functions.
123		*
124		* @invisible
125		* @var array
126		*/
127		private $functions = [];
128
129		/**
130		* Every found method/function invocation.
131		*
132		* @invisible
133		* @var ReflectionInvocation[]
134		*/
135		private $invocations = [];
136
137		/**
138		* @param array $tokens
139		* @param array $cache Tokenizer can construct reflection with pre-created cache to speed up
140		* indexation.
141		*/
142		public function __construct(array $tokens, array $cache = [])
143		{
144		$this->tokens = $tokens;
145
146		if (!empty($cache)) {
147		//Locating file schema from file, can speed up class location a LOT
148		$this->importSchema($cache);
149
150		return;
151		}
152
153		//Looking for declarations
154		$this->locateDeclarations();
155		}
156
157		/**
158		* {@inheritdoc}
159		*/
160		public function getFunctions()
161		{
162		return array_keys($this->functions);
163		}
164
165		/**
166		* {@inheritdoc}
167		*/
168		public function getClasses()
169		{
170		if (!isset($this->declarations['T_CLASS'])) {
171		return [];
172		}
173
174		return array_keys($this->declarations['T_CLASS']);
175		}
176
177		/**
178		* {@inheritdoc}
179		*/
180		public function getTraits()
181		{
182		if (!isset($this->declarations['T_TRAIT'])) {
183		return [];
184		}
185
186		return array_keys($this->declarations['T_TRAIT']);
187		}
188
189		/**
190		* {@inheritdoc}
191		*/
192		public function getInterfaces()
193		{
194		if (!isset($this->declarations['T_INTERFACE'])) {
195		return [];
196		}
197
198		return array_keys($this->declarations['T_INTERFACE']);
199		}
200
201		/**
202		* Get list of tokens associated with given file.
203		*
204		* @return array
205		*/
206		public function getTokens()
207		{
208		return $this->tokens;
209		}
210
211		/**
212		* {@inheritdoc}
213		*/
214		public function hasIncludes()
215		{
216		return $this->hasIncludes;
217		}
218
219		/**
220		* {@inheritdoc}
221		*/
222		public function getInvocations()
223		{
224		if (empty($this->invocations)) {
225		$this->locateInvocations($this->getTokens());
226		}
227
228		return $this->invocations;
229		}
230
231		/**
232		* Export found declaration as array for caching purposes.
233		*
234		* @return array
235		*/
236		public function exportSchema()
237		{
238		return [$this->hasIncludes, $this->declarations, $this->functions, $this->namespaces];
239		}
240
241		/**
242		* Import cached reflection schema.
243		*
244		* @param array $cache
245		*/
246		protected function importSchema(array $cache)
247		{
248		list($this->hasIncludes, $this->declarations, $this->functions, $this->namespaces) = $cache;
249		}
250
251		/**
252		* Locate every class, interface, trait or function definition.
253		*/
254		protected function locateDeclarations()
255		{
256		foreach ($this->getTokens() as $tokenID => $token) {
257		if (!in_array($token[self::TOKEN_TYPE], self::$processTokens)) {
258		continue;
259		}
260
261		switch ($token[self::TOKEN_TYPE]) {
262		case T_NAMESPACE:
263		$this->registerNamespace($tokenID);
264		break;
265
266		case T_USE:
267		$this->registerUse($tokenID);
268		break;
269
270		case T_FUNCTION:
271		$this->registerFunction($tokenID);
272		break;
273
274		case T_CLASS:
275		case T_TRAIT;
		0 ignored issues – show Coding Style introduced 2015-11-21 12:38 UTC by Report Bug Copy Issue Report `case` statements should not use curly braces. As per the PSR-2 coding standard, case statements should not be wrapped in curly braces. There is no need for braces, since each case is terminated by the next `break`. switch ($expr) { case "A": { //wrong doSomething(); break; } case "B": //right doSomething(); break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
276		case T_INTERFACE:
277		if (
278		$this->tokens[$tokenID][self::TOKEN_TYPE] == T_CLASS
279		&& isset($this->tokens[$tokenID - 1])
280		&& $this->tokens[$tokenID - 1][self::TOKEN_TYPE] == T_PAAMAYIM_NEKUDOTAYIM
281		) {
282		//PHP5.5 ClassName::class constant
283		continue;
284		}
285
286		$this->registerDeclaration($tokenID, $token[self::TOKEN_TYPE]);
287		break;
288
289		case T_INCLUDE:
290		case T_INCLUDE_ONCE:
291		case T_REQUIRE:
292		case T_REQUIRE_ONCE:
293		$this->hasIncludes = true;
294		}
295		}
296
297		//Dropping empty namespace
298		if (isset($this->namespaces[''])) {
299		$this->namespaces['\\'] = $this->namespaces[''];
300		unset($this->namespaces['']);
301		}
302		}
303
304		/**
305		* Handle namespace declaration.
306		*
307		* @param int $tokenID
308		*/
309		private function registerNamespace($tokenID)
310		{
311		$namespace = '';
312		$localID = $tokenID + 1;
313
314		do {
315		$token = $this->tokens[$localID++];
316		if ($token[self::TOKEN_CODE] == '{') {
317		break;
318		}
319
320		$namespace .= $token[self::TOKEN_CODE];
321		} while (
322		isset($this->tokens[$localID])
323		&& $this->tokens[$localID][self::TOKEN_CODE] != '{'
324		&& $this->tokens[$localID][self::TOKEN_CODE] != ';'
325		);
326
327		//Whitespaces
328		$namespace = trim($namespace);
329
330		$uses = [];
331		if (isset($this->namespaces[$namespace])) {
332		$uses = $this->namespaces[$namespace];
333		}
334
335		if ($this->tokens[$localID][self::TOKEN_CODE] == ';') {
336		$endingID = count($this->tokens) - 1;
337		} else {
338		$endingID = $this->endingToken($tokenID);
339		}
340
341		$this->namespaces[$namespace] = [
342		self::O_TOKEN => $tokenID,
343		self::C_TOKEN => $endingID,
344		self::N_USES => $uses
345		];
346		}
347
348		/**
349		* Handle use (import class from another namespace).
350		*
351		* @param int $tokenID
352		*/
353		private function registerUse($tokenID)
354		{
355		$namespace = rtrim($this->activeNamespace($tokenID), '\\');
356
357		$class = '';
358		$localAlias = null;
359		for ($localID = $tokenID + 1; $this->tokens[$localID][self::TOKEN_CODE] != ';'; $localID++) {
360		if ($this->tokens[$localID][self::TOKEN_TYPE] == T_AS) {
361		$localAlias = '';
362		continue;
363		}
364
365		if ($localAlias === null) {
366		$class .= $this->tokens[$localID][self::TOKEN_CODE];
367		} else {
368		$localAlias .= $this->tokens[$localID][self::TOKEN_CODE];
369		}
370		}
371
372		if (empty($localAlias)) {
373		$names = explode('\\', $class);
374		$localAlias = end($names);
375		}
376
377		$this->namespaces[$namespace][self::N_USES][trim($localAlias)] = trim($class);
378		}
379
380		/**
381		* Handle function declaration (function creation).
382		*
383		* @param int $tokenID
384		*/
385		private function registerFunction($tokenID)
386		{
387	View Code Duplication	foreach ($this->declarations as $declarations) {
388		foreach ($declarations as $location) {
389		if ($tokenID >= $location[self::O_TOKEN] && $tokenID <= $location[self::C_TOKEN]) {
390		//We are inside class, function is method
391		return;
392		}
393		}
394		}
395
396		$localID = $tokenID + 1;
397		while ($this->tokens[$localID][self::TOKEN_TYPE] != T_STRING) {
398		//Fetching function name
399		$localID++;
400		}
401
402		$name = $this->tokens[$localID][self::TOKEN_CODE];
403	View Code Duplication	if (!empty($namespace = $this->activeNamespace($tokenID))) {
		0 ignored issues – show Duplication introduced 2015-11-21 12:38 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
404		$name = $namespace . self::NS_SEPARATOR . $name;
405		}
406
407		$this->functions[$name] = [
408		self::O_TOKEN => $tokenID,
409		self::C_TOKEN => $this->endingToken($tokenID)
410		];
411		}
412
413		/**
414		* Handle declaration of class, trait of interface. Declaration will be stored under it's token
415		* type in declarations array.
416		*
417		* @param int $tokenID
418		* @param int $tokenType
419		*/
420		private function registerDeclaration($tokenID, $tokenType)
421		{
422		$localID = $tokenID + 1;
423		while ($this->tokens[$localID][self::TOKEN_TYPE] != T_STRING) {
424		$localID++;
425		}
426
427		$name = $this->tokens[$localID][self::TOKEN_CODE];
428	View Code Duplication	if (!empty($namespace = $this->activeNamespace($tokenID))) {
		0 ignored issues – show Duplication introduced 2015-11-21 12:38 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
429		$name = $namespace . self::NS_SEPARATOR . $name;
430		}
431
432		$this->declarations[token_name($tokenType)][$name] = [
433		self::O_TOKEN => $tokenID,
434		self::C_TOKEN => $this->endingToken($tokenID)
435		];
436		}
437
438		/**
439		* Locate every function or static method call (including $this calls).
440		*
441		* @param array $tokens
442		* @param int $invocationLevel
443		*/
444		private function locateInvocations(array $tokens, $invocationLevel = 0)
445		{
446		//Multiple "(" and ")" statements nested.
447		$level = 0;
448
449		//Skip all tokens until next function
450		$ignore = false;
451
452		//Were function was found
453		$invocationTID = 0;
454
455		//Parsed arguments and their first token id
456		$arguments = [];
457		$argumentsTID = false;
458
459		//Tokens used to re-enable token detection
460		$stopTokens = [T_STRING, T_WHITESPACE, T_DOUBLE_COLON, T_OBJECT_OPERATOR, T_NS_SEPARATOR];
461		foreach ($tokens as $tokenID => $token) {
462		$tokenType = $token[self::TOKEN_TYPE];
463
464		//We are not indexing function declarations or functions called from $objects.
465		if ($tokenType == T_FUNCTION \|\| $tokenType == T_OBJECT_OPERATOR \|\| $tokenType == T_NEW) {
466		if (
467		empty($argumentsTID)
468		&& (
469		empty($invocationTID)
470		\|\| $this->getSource($invocationTID, $tokenID - 1) != '$this'
471		)
472		) {
473		//Not a call, function declaration, or object method
474		$ignore = true;
475		continue;
476		}
477		} elseif ($ignore) {
478		if (!in_array($tokenType, $stopTokens)) {
479		//Returning to search
480		$ignore = false;
481		}
482		continue;
483		}
484
485		//We are inside function, and there is "(", indexing arguments.
486		if (!empty($invocationTID) && ($tokenType == '(' \|\| $tokenType == '[')) {
487		if (empty($argumentsTID)) {
488		$argumentsTID = $tokenID;
489		}
490
491		$level++;
492		if ($level != 1) {
493		//Not arguments beginning, but arguments part
494		$arguments[$tokenID] = $token;
495		}
496
497		continue;
498		}
499
500		//We are inside function arguments and ")" met.
501		if (!empty($invocationTID) && ($tokenType == ')' \|\| $tokenType == ']')) {
502		$level--;
503		if ($level == -1) {
504		$invocationTID = false;
505		$level = 0;
506		continue;
507		}
508
509		//Function fully indexed, we can process it now.
510		if ($level == 0) {
511		$this->registerInvocation(
512		$invocationTID,
513		$argumentsTID,
514		$tokenID,
515		$arguments,
516		$invocationLevel
517		);
518
519		//Closing search
520		$arguments = [];
521		$argumentsTID = $invocationTID = false;
522		} else {
523		//Not arguments beginning, but arguments part
524		$arguments[$tokenID] = $token;
525		}
526
527		continue;
528		}
529
530		//Still inside arguments.
531		if (!empty($invocationTID) && !empty($level)) {
532		$arguments[$tokenID] = $token;
533		continue;
534		}
535
536		//Nothing valuable to remember, will be parsed later.
537		if (!empty($invocationTID) && in_array($tokenType, $stopTokens)) {
538		continue;
539		}
540
541		//Seems like we found function/method call
542		if (
543		$tokenType == T_STRING
544		\|\| $tokenType == T_STATIC
545		\|\| $tokenType == T_NS_SEPARATOR
546		\|\| ($tokenType == T_VARIABLE && $token[self::TOKEN_CODE] == '$this')
547		) {
548		$invocationTID = $tokenID;
549		$level = 0;
550
551		$argumentsTID = false;
552		continue;
553		}
554
555		//Returning to search
556		$invocationTID = false;
557		$arguments = [];
558		}
559		}
560
561		/**
562		* Registering invocation.
563		*
564		* @param int $invocationID
565		* @param int $argumentsID
566		* @param int $endID
567		* @param array $arguments
568		* @param int $invocationLevel
569		*/
570		private function registerInvocation(
571		$invocationID,
572		$argumentsID,
573		$endID,
574		array $arguments,
575		$invocationLevel
576		) {
577		//Nested invocations
578		$this->locateInvocations($arguments, $invocationLevel + 1);
579
580		list($class, $operator, $name) = $this->fetchContext($invocationID, $argumentsID);
581		if (!empty($operator) && empty($class)) {
582		//Non detectable
583		return;
584		}
585
586		$this->invocations[] = new ReflectionInvocation(
587		$this->filename,
588		$this->lineNumber($invocationID),
589		$class,
590		$operator,
591		$name,
592		ReflectionArgument::locateArguments($arguments),
593		$this->getSource($invocationID, $endID),
594		$invocationLevel
595		);
596		}
597
598		/**
599		* Fetching invocation context.
600		*
601		* @param int $invocationTID
602		* @param int $argumentsTID
603		* @return array
604		*/
605		private function fetchContext($invocationTID, $argumentsTID)
606		{
607		$class = $operator = '';
608		$name = trim($this->getSource($invocationTID, $argumentsTID), '( ');
609
610		//Let's try to fetch all information we need
611		if (strpos($name, '->') !== false) {
612		$operator = '->';
613		} elseif (strpos($name, '::') !== false) {
614		$operator = '::';
615		}
616
617		if (!empty($operator)) {
618		list($class, $name) = explode($operator, $name);
619
620		//We now have to clarify class name
621		if (in_array($class, ['self', 'static', '$this'])) {
622		$class = $this->activeDeclaration($invocationTID);
623		}
624		}
625
626		return [$class, $operator, $name];
627		}
628
629		/**
630		* Get declaration which is active in given token position.
631		*
632		* @param int $tokenID
633		* @return string\|null
634		*/
635		private function activeDeclaration($tokenID)
636		{
637	View Code Duplication	foreach ($this->declarations as $declarations) {
638		foreach ($declarations as $name => $position) {
639		if ($tokenID >= $position[self::O_TOKEN] && $tokenID <= $position[self::C_TOKEN]) {
640		return $name;
641		}
642		}
643		}
644
645		//Can not be detected
646		return null;
647		}
648
649		/**
650		* Get namespace name active at specified token position.
651		*
652		* @param int $tokenID
653		* @return string
654		*/
655		private function activeNamespace($tokenID)
656		{
657		foreach ($this->namespaces as $namespace => $position) {
658		if ($tokenID >= $position[self::O_TOKEN] && $tokenID <= $position[self::C_TOKEN]) {
659		return $namespace;
660		}
661		}
662
663		//Seems like no namespace declaration
664		$this->namespaces[''] = [
665		self::O_TOKEN => 0,
666		self::C_TOKEN => count($this->tokens),
667		self::N_USES => []
668		];
669
670		return '';
671		}
672
673		/**
674		* Find token ID of ending brace.
675		*
676		* @param int $tokenID
677		* @return mixed
678		*/
679		private function endingToken($tokenID)
680		{
681		$level = null;
682		for ($localID = $tokenID; $localID < $this->countTokens; $localID++) {
683		$token = $this->tokens[$localID];
684		if ($token[self::TOKEN_CODE] == '{') {
685		$level++;
686		continue;
687		}
688
689		if ($token[self::TOKEN_CODE] == '}') {
690		$level--;
691		}
692
693		if ($level === 0) {
694		break;
695		}
696		}
697
698		return $localID;
699		}
700
701		/**
702		* Get line number associated with token.
703		*
704		* @param int $tokenID
705		* @return int
706		*/
707		private function lineNumber($tokenID)
708		{
709		while (empty($this->tokens[$tokenID][self::TOKEN_LINE])) {
710		$tokenID--;
711		}
712
713		return $this->tokens[$tokenID][self::TOKEN_LINE];
714		}
715
716		/**
717		* Get source located between two tokens.
718		*
719		* @param int $startID
720		* @param int $endID
721		* @return string
722		*/
723		private function getSource($startID, $endID)
724		{
725		$result = '';
726		for ($tokenID = $startID; $tokenID <= $endID; $tokenID++) {
727		//Collecting function usage source
728		$result .= $this->tokens[$tokenID][self::TOKEN_CODE];
729		}
730
731		return $result;
732		}
733		}

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