Context::syntaxError() - Code Metrics - Inspection of "Start to work on generic issue reporters" - ovr/phpsa - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#235)

by Kévin

created 2016-10-11 21:32 UTC

Context::syntaxError() A

↳ Parent: Context

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	2

Importance

Changes

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

<?php
/**
 * @author Patsura Dmitry https://github.com/ovr <[email protected]>
 */

namespace PHPSA;

use PHPSA\Compiler\Expression;
use PHPSA\Compiler\GlobalVariable;
use PHPSA\Definition\AbstractDefinition;
use PHPSA\Definition\ParentDefinition;
use Symfony\Component\Console\Output\OutputInterface;
use Webiny\Component\EventManager\EventManager;

class Context
{
    /**
     * For FunctionDefinition it's null, use scopePointer
     *
     * @var ParentDefinition|null
     */
    public $scope;

    /**
     * @var AliasManager
     */
    public $aliasManager;

    /**
     * @var Application
     */
    public $application;

    /**
     * @var string|integer
     */
    public $currentBranch;

    /**
     * @var OutputInterface
     */
    public $output;

    /**
     * @var Variable[]
     */
    protected $symbols = [];

    /**
     * @var ScopePointer|null
     */
    public $scopePointer;

    /**
     * @var string
     */
    protected $filepath;

    /**
     * @var EventManager
     */
    protected $eventManager;

    /**
     * Construct our Context with all needed information
     *
     * @param OutputInterface $output
     * @param Application $application
     * @param EventManager $eventManager
     */
    public function __construct(OutputInterface $output, Application $application, EventManager $eventManager)
    {
        $this->output = $output;
        $this->application = $application;

        $this->initGlobals();
        $this->eventManager = $eventManager;
    }

    /**
     * @return Expression
     */
    public function getExpressionCompiler()
    {
        return new Expression($this, $this->eventManager);
    }

    /**
     * Adds all global variables to the context.
     */
    public function initGlobals()
    {
        /**
         * http://php.net/manual/language.variables.superglobals.php
         */
        $this->addVariable(new GlobalVariable('GLOBALS', [], CompiledExpression::ARR));
        $this->addVariable(new GlobalVariable('_SERVER', [], CompiledExpression::ARR));
        $this->addVariable(new GlobalVariable('_GET', [], CompiledExpression::ARR));
        $this->addVariable(new GlobalVariable('_POST', [], CompiledExpression::ARR));
        $this->addVariable(new GlobalVariable('_FILES', [], CompiledExpression::ARR));
        $this->addVariable(new GlobalVariable('_COOKIE', [], CompiledExpression::ARR));
        $this->addVariable(new GlobalVariable('_SESSION', [], CompiledExpression::ARR));
        $this->addVariable(new GlobalVariable('_REQUEST', [], CompiledExpression::ARR));
        $this->addVariable(new GlobalVariable('_ENV', [], CompiledExpression::ARR));
    }

    /**
     * Creates a variable from a symbol and adds it to the context.
     *
     * @param string $name
     * @return Variable
     */
    public function addSymbol($name)
    {
        $variable = new Variable($name);
        $this->symbols[$name] = $variable;

        return $variable;
    }

    /**
     * Adds a variable to the context.
     *
     * @param Variable $variable
     * @return bool
     */
    public function addVariable(Variable $variable)
    {
        $this->symbols[$variable->getName()] = $variable;

        return true;
    }

    /**
     * Resets context to beginning stage.
     */
    public function clear()
    {
        $this->symbols = [];
        $this->scope = null;
        $this->scopePointer = null;
        $this->currentBranch = null;
        $this->aliasManager = null;

        $this->initGlobals();
    }

    /**
     * Clears only all symbols.
     */
    public function clearSymbols()
    {
        unset($this->symbols);
        $this->symbols = [];
    }

    /**
     * Returns a variable if it exists.
     *
     * @param $name
     * @return Variable|null
     */
    public function getSymbol($name)
    {
        return isset($this->symbols[$name]) ? $this->symbols[$name] : null;
    }

    /**
     * Creates a notice message.
     *
     * @param string $type
     * @param string $message
     * @param \PhpParser\NodeAbstract $expr
     * @param int $status
     * @return bool
     */
    public function notice($type, $message, \PhpParser\NodeAbstract $expr, $status = Check::CHECK_SAFE)

    {
        return $this->addIssue($type, $message, $expr->getLine());
    }

    /**
     * Creates a syntax error message.
     *
     * @param \PhpParser\Error $exception
     * @param string $filepath
     * @return bool
     */
    public function syntaxError(\PhpParser\Error $exception, $filepath)
    {
        return $this->addIssue('syntax-error', $exception->getMessage(), $exception->getStartLine(), $filepath);
    }

    /**
     * @param $type
     * @param $message
     * @param $line
     * @param string|null $filepath
     * @return bool
     */
    protected function addIssue($type, $message, $line, $filepath = null)
    {
        $filepath = $filepath ?: $this->filepath;
        $issue = new Issue($type, $message, new IssueLocation($filepath, $line));

        if ($this->application->getConfiguration()->getValue('blame')) {
            exec("git blame --show-email -L {$line},{$line} " . $filepath, $result);
            if ($result && isset($result[0])) {
                $issue->setBlame(trim($result[0]));
            }
        }

        $issueCollector = $this->application->getIssuesCollector();
        $issueCollector->addIssue($issue);

        return true;
    }

    /**
     * Returns an array of all variables.
     *
     * @return Variable[]
     */
    public function getSymbols()
    {
        return $this->symbols;
    }

    /**
     * @param AbstractDefinition $scope
     */
    public function setScope(AbstractDefinition $scope = null)
    {
        $this->scope = $scope;
class Id
{
    public $id;

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

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}
    }

    /**
     * Creates a debug message.
     */
    public function debug($message, \PhpParser\Node $expr = null)
    {
        if ($this->output->isDebug()) {
            $this->output->writeln('[DEBUG] ' . $message);
            $this->output->write($this->filepath);

            if ($expr) {
                $this->output->write(':' . $expr->getLine());
            }

            $this->output->writeln('');
        }
    }

    /**
     * @return string
     */
    public function getFilepath()
    {
        return $this->filepath;
    }

    /**
     * @param string $filepath
     */
    public function setFilepath($filepath)
    {
        $this->filepath = $filepath;
    }

    /**
     * @return integer
     */
    public function getCurrentBranch()
    {
        return $this->currentBranch;
    }

    /**
     * @param int|string $currentBranch
     */
    public function setCurrentBranch($currentBranch)
    {
        $this->currentBranch = $currentBranch;
    }

    /**
     * Updates all references on the given variable.
     *
     * @param Variable $variable
     * @param $type
     * @param $value
     */
    public function modifyReferencedVariables(Variable $variable, $type, $value)
    {
        foreach ($this->symbols as $symbol) {
            $referencedTo = $symbol->getReferencedTo();
class A
{
    function getObject()
    {
        return null;
    }

}

$a = new A();
$object = $a->getObject();
            if ($referencedTo) {
                if ($referencedTo === $variable) {
                    $symbol->modify($type, $value);
                }
            }
        }
    }

    /**
     * @return EventManager
     */
    public function getEventManager()
    {
        return $this->eventManager;
    }
}


1		<?php
2		/**
3		* @author Patsura Dmitry https://github.com/ovr <[email protected]>
4		*/
5
6		namespace PHPSA;
7
8		use PHPSA\Compiler\Expression;
9		use PHPSA\Compiler\GlobalVariable;
10		use PHPSA\Definition\AbstractDefinition;
11		use PHPSA\Definition\ParentDefinition;
12		use Symfony\Component\Console\Output\OutputInterface;
13		use Webiny\Component\EventManager\EventManager;
14
15		class Context
16		{
17		/**
18		* For FunctionDefinition it's null, use scopePointer
19		*
20		* @var ParentDefinition\|null
21		*/
22		public $scope;
23
24		/**
25		* @var AliasManager
26		*/
27		public $aliasManager;
28
29		/**
30		* @var Application
31		*/
32		public $application;
33
34		/**
35		* @var string\|integer
36		*/
37		public $currentBranch;
38
39		/**
40		* @var OutputInterface
41		*/
42		public $output;
43
44		/**
45		* @var Variable[]
46		*/
47		protected $symbols = [];
48
49		/**
50		* @var ScopePointer\|null
51		*/
52		public $scopePointer;
53
54		/**
55		* @var string
56		*/
57		protected $filepath;
58
59		/**
60		* @var EventManager
61		*/
62		protected $eventManager;
63
64		/**
65		* Construct our Context with all needed information
66		*
67		* @param OutputInterface $output
68		* @param Application $application
69		* @param EventManager $eventManager
70		*/
71	868	public function __construct(OutputInterface $output, Application $application, EventManager $eventManager)
72		{
73	868	$this->output = $output;
74	868	$this->application = $application;
75
76	868	$this->initGlobals();
77	868	$this->eventManager = $eventManager;
78	868	}
79
80		/**
81		* @return Expression
82		*/
83	859	public function getExpressionCompiler()
84		{
85	859	return new Expression($this, $this->eventManager);
86		}
87
88		/**
89		* Adds all global variables to the context.
90		*/
91	868	public function initGlobals()
92		{
93		/**
94		* http://php.net/manual/language.variables.superglobals.php
95		*/
96	868	$this->addVariable(new GlobalVariable('GLOBALS', [], CompiledExpression::ARR));
97	868	$this->addVariable(new GlobalVariable('_SERVER', [], CompiledExpression::ARR));
98	868	$this->addVariable(new GlobalVariable('_GET', [], CompiledExpression::ARR));
99	868	$this->addVariable(new GlobalVariable('_POST', [], CompiledExpression::ARR));
100	868	$this->addVariable(new GlobalVariable('_FILES', [], CompiledExpression::ARR));
101	868	$this->addVariable(new GlobalVariable('_COOKIE', [], CompiledExpression::ARR));
102	868	$this->addVariable(new GlobalVariable('_SESSION', [], CompiledExpression::ARR));
103	868	$this->addVariable(new GlobalVariable('_REQUEST', [], CompiledExpression::ARR));
104	868	$this->addVariable(new GlobalVariable('_ENV', [], CompiledExpression::ARR));
105	868	}
106
107		/**
108		* Creates a variable from a symbol and adds it to the context.
109		*
110		* @param string $name
111		* @return Variable
112		*/
113	3	public function addSymbol($name)
114		{
115	3	$variable = new Variable($name);
116	3	$this->symbols[$name] = $variable;
117
118	3	return $variable;
119		}
120
121		/**
122		* Adds a variable to the context.
123		*
124		* @param Variable $variable
125		* @return bool
126		*/
127	868	public function addVariable(Variable $variable)
128		{
129	868	$this->symbols[$variable->getName()] = $variable;
130
131	868	return true;
132		}
133
134		/**
135		* Resets context to beginning stage.
136		*/
137	41	public function clear()
138		{
139	41	$this->symbols = [];
140	41	$this->scope = null;
141	41	$this->scopePointer = null;
142	41	$this->currentBranch = null;
143	41	$this->aliasManager = null;
144
145	41	$this->initGlobals();
146	41	}
147
148		/**
149		* Clears only all symbols.
150		*/
151	39	public function clearSymbols()
152		{
153	39	unset($this->symbols);
154	39	$this->symbols = [];
155	39	}
156
157		/**
158		* Returns a variable if it exists.
159		*
160		* @param $name
161		* @return Variable\|null
162		*/
163	79	public function getSymbol($name)
164		{
165	79	return isset($this->symbols[$name]) ? $this->symbols[$name] : null;
166		}
167
168		/**
169		* Creates a notice message.
170		*
171		* @param string $type
172		* @param string $message
173		* @param \PhpParser\NodeAbstract $expr
174		* @param int $status
175	9	* @return bool
176		*/
177	9	public function notice($type, $message, \PhpParser\NodeAbstract $expr, $status = Check::CHECK_SAFE)
		0 ignored issues – show Unused Code introduced 2016-01-16 20:22 UTC by Report Bug Copy Issue Report The parameter `$status` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history...
178	9	{
179		return $this->addIssue($type, $message, $expr->getLine());
180	9	}
181
182	9	/**
183		* Creates a syntax error message.
184		*
185		* @param \PhpParser\Error $exception
186		* @param string $filepath
187		* @return bool
188		*/
189		public function syntaxError(\PhpParser\Error $exception, $filepath)
190		{
191		return $this->addIssue('syntax-error', $exception->getMessage(), $exception->getStartLine(), $filepath);
192		}
193
194	41	/**
195		* @param $type
196	41	* @param $message
197	41	* @param $line
198		* @param string\|null $filepath
199	41	* @return bool
200	41	*/
201		protected function addIssue($type, $message, $line, $filepath = null)
202	41	{
203		$filepath = $filepath ?: $this->filepath;
204		$issue = new Issue($type, $message, new IssueLocation($filepath, $line));
205
206		if ($this->application->getConfiguration()->getValue('blame')) {
207		exec("git blame --show-email -L {$line},{$line} " . $filepath, $result);
208		if ($result && isset($result[0])) {
209		$issue->setBlame(trim($result[0]));
210	41	}
211	41	}
212
213		$issueCollector = $this->application->getIssuesCollector();
214	41	$issueCollector->addIssue($issue);
215
216	41	return true;
217	41	}
218	41
219	41	/**
220	41	* Returns an array of all variables.
221	41	*
222	41	* @return Variable[]
223	41	*/
224	41	public function getSymbols()
225	41	{
226	41	return $this->symbols;
227		}
228	41
229		/**
230		* @param AbstractDefinition $scope
231		*/
232		public function setScope(AbstractDefinition $scope = null)
233		{
234		$this->scope = $scope;
		0 ignored issues – show Documentation Bug introduced 2015-11-22 15:25 UTC by Report Bug Copy Issue Report It seems like `$scope` can also be of type `object<PHPSA\Definition\AbstractDefinition>`. However, the property `$scope` is declared as type `object<PHPSA\Definition\ParentDefinition>\|null`. Maybe add an additional type check? Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly. For example, imagine you have a variable `$accountId` that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to the `id` property of an instance of the `Account` class. This class holds a proper account, so the id value must no longer be false. Either this assignment is in error or a type check should be added for that assignment. class Id { public $id; public function __construct($id) { $this->id = $id; } } class Account { /** @var Id $id */ public $id; } $account_id = false; if (starsAreRight()) { $account_id = new Id(42); } $account = new Account(); if ($account instanceof Id) { $account->id = $account_id; } Loading history...
235		}
236
237		/**
238		* Creates a debug message.
239		*/
240		public function debug($message, \PhpParser\Node $expr = null)
241		{
242		if ($this->output->isDebug()) {
243		$this->output->writeln('[DEBUG] ' . $message);
244		$this->output->write($this->filepath);
245
246		if ($expr) {
247		$this->output->write(':' . $expr->getLine());
248		}
249
250		$this->output->writeln('');
251		}
252		}
253
254		/**
255		* @return string
256		*/
257		public function getFilepath()
258		{
259		return $this->filepath;
260		}
261
262		/**
263		* @param string $filepath
264		*/
265		public function setFilepath($filepath)
266		{
267		$this->filepath = $filepath;
268	39	}
269
270	39	/**
271		* @return integer
272		*/
273		public function getCurrentBranch()
274		{
275		return $this->currentBranch;
276	868	}
277
278	868	/**
279	868	* @param int\|string $currentBranch
280		*/
281		public function setCurrentBranch($currentBranch)
282		{
283		$this->currentBranch = $currentBranch;
284	41	}
285
286	41	/**
287		* Updates all references on the given variable.
288		*
289		* @param Variable $variable
290		* @param $type
291		* @param $value
292		*/
293		public function modifyReferencedVariables(Variable $variable, $type, $value)
294		{
295		foreach ($this->symbols as $symbol) {
296	41	$referencedTo = $symbol->getReferencedTo();
		0 ignored issues – show Bug introduced 2016-05-17 11:01 UTC by Report Bug Copy Issue Report Are you sure the assignment to `$referencedTo` is correct as `$symbol->getReferencedTo()` (which targets `PHPSA\Variable::getReferencedTo()`) seems to always return null. This check looks for function or method calls that always return null and whose return value is assigned to a variable. class A { function getObject() { return null; } } $a = new A(); $object = $a->getObject(); The method `getObject()` can return nothing but null, so it makes no sense to assign that value to a variable. The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes. Loading history...
297		if ($referencedTo) {
298		if ($referencedTo === $variable) {
299		$symbol->modify($type, $value);
300		}
301		}
302		}
303		}
304
305		/**
306		* @return EventManager
307		*/
308		public function getEventManager()
309	41	{
310		return $this->eventManager;
311	41	}
312		}
313

ovr / phpsa

Pull Request — master (#235)

Context::syntaxError() A

Complexity

Size

Duplication

Code Coverage

Importance

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