Expression::__construct() - Code Metrics - Inspection of "Merge pull request #209 from ddmler/compiler-suppo..." - ovr/phpsa - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( d334be...5ef408 )

by Дмитрий

created 2016-10-08 02:41 UTC

Expression::__construct() A

↳ Parent: Expression

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	4
CRAP Score	1

Importance

Changes

Metric	Value
cc	1
eloc	3
nc	1
nop	2
dl	0
loc	5
ccs	4
cts	4
cp	1
crap	1
rs	9.4285
c	0
b	0
f	0

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

namespace PHPSA\Compiler;

use InvalidArgumentException;
use phpDocumentor\Reflection\DocBlockFactory;
use PHPSA\Check;
use PHPSA\CompiledExpression;
use PHPSA\Compiler\Event\ExpressionBeforeCompile;
use PHPSA\Context;
use PhpParser\Node;
use PHPSA\Definition\ClassDefinition;
use PHPSA\Exception\RuntimeException;
use PHPSA\Variable;
use PHPSA\Compiler\Expression\AbstractExpressionCompiler;
use Webiny\Component\EventManager\EventManager;

class Expression

{
    /**
     * @var Context
     */
    protected $context;

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

    /**
     * @param Context $context
     */
    public function __construct(Context $context, EventManager $eventManager)
    {
        $this->context = $context;
        $this->eventManager = $eventManager;
    }

    /**
     * @param $expr
     * @return ExpressionCompilerInterface|AbstractExpressionCompiler
     */
    protected function factory($expr)
    {
        switch (get_class($expr)) {
            /**
             * Call(s)
             */
            case Node\Expr\MethodCall::class:
                return new Expression\MethodCall();
            case Node\Expr\FuncCall::class:
                return new Expression\FunctionCall();
            case Node\Expr\StaticCall::class:
                return new Expression\StaticCall();
            /**
             * Operators
             */
            case Node\Expr\New_::class:
                return new Expression\Operators\NewOp();
            case Node\Expr\Instanceof_::class:
                return new Expression\Operators\InstanceOfOp();
            /**
             * AssignOp
             */
            case Node\Expr\AssignOp\Pow::class:
                return new Expression\AssignOp\Pow();
            case Node\Expr\AssignOp\Plus::class:
                return new Expression\AssignOp\Plus();
            case Node\Expr\AssignOp\Minus::class:
                return new Expression\AssignOp\Minus();
            case Node\Expr\AssignOp\Mul::class:
                return new Expression\AssignOp\Mul();
            case Node\Expr\AssignOp\Div::class:
                return new Expression\AssignOp\Div();
            case Node\Expr\AssignOp\Mod::class:
                return new Expression\AssignOp\Mod();
            case Node\Expr\AssignOp\BitwiseOr::class:
                return new Expression\AssignOp\BitwiseOr();
            case Node\Expr\AssignOp\BitwiseAnd::class:
                return new Expression\AssignOp\BitwiseAnd();
            case Node\Expr\AssignOp\BitwiseXor::class:
                return new Expression\AssignOp\BitwiseXor();
            case Node\Expr\AssignOp\Concat::class:
                return new Expression\AssignOp\Concat();
            case Node\Expr\AssignOp\ShiftLeft::class:
                return new Expression\AssignOp\ShiftLeft();
            case Node\Expr\AssignOp\ShiftRight::class:
                return new Expression\AssignOp\ShiftRight();

            /**
             * BinaryOp
             */
            case Node\Expr\BinaryOp\Identical::class:
                return new Expression\BinaryOp\Identical();
            case Node\Expr\BinaryOp\Concat::class:
                return new Expression\Operators\Concat();
            case Node\Expr\BinaryOp\NotIdentical::class:
                return new Expression\BinaryOp\NotIdentical();
            case Node\Expr\BinaryOp\Equal::class:
                return new Expression\BinaryOp\Equal();
            case Node\Expr\BinaryOp\NotEqual::class:
                return new Expression\BinaryOp\NotEqual();
            case Node\Expr\BinaryOp\Spaceship::class:
                return new Expression\BinaryOp\SpaceShip();
            case Node\Expr\BinaryOp\Coalesce::class:
                return new Expression\BinaryOp\Coalesce();
                
            /**
             * @link http://php.net/manual/en/language.operators.increment.php
             */
            case Node\Expr\PostInc::class:
                return new Expression\Operators\PostInc();
            case Node\Expr\PostDec::class:
                return new Expression\Operators\PostDec();
            case Node\Expr\PreInc::class:
                return new Expression\Operators\PreInc();
            case Node\Expr\PreDec::class:
                return new Expression\Operators\PreDec();
            /**
             * Arithmetical
             */
            case Node\Expr\BinaryOp\Div::class:
                return new Expression\Operators\Arithmetical\Div();
            case Node\Expr\BinaryOp\Plus::class:
                return new Expression\Operators\Arithmetical\Plus();
            case Node\Expr\BinaryOp\Minus::class:
                return new Expression\Operators\Arithmetical\Minus();
            case Node\Expr\BinaryOp\Mul::class:
                return new Expression\Operators\Arithmetical\Mul();
            case Node\Expr\BinaryOp\Mod::class:
                return new Expression\Operators\Arithmetical\Mod();
            case Node\Expr\BinaryOp\Pow::class:
                return new Expression\Operators\Arithmetical\Pow();

            /**
             * Bitwise
             * @link http://php.net/manual/ru/language.operators.bitwise.php
             */
            case Node\Expr\BinaryOp\BitwiseOr::class:
                return new Expression\Operators\Bitwise\BitwiseOr();
            case Node\Expr\BinaryOp\BitwiseXor::class:
                return new Expression\Operators\Bitwise\BitwiseXor();
            case Node\Expr\BinaryOp\BitwiseAnd::class:
                return new Expression\Operators\Bitwise\BitwiseAnd();
            case Node\Expr\BinaryOp\ShiftRight::class:
                return new Expression\Operators\Bitwise\ShiftRight();
            case Node\Expr\BinaryOp\ShiftLeft::class:
                return new Expression\Operators\Bitwise\ShiftLeft();
            case Node\Expr\BitwiseNot::class:
                return new Expression\Operators\Bitwise\BitwiseNot();
            /**
             * Logical
             */
            case Node\Expr\BinaryOp\BooleanOr::class:
                return new Expression\Operators\Logical\BooleanOr();
            case Node\Expr\BinaryOp\BooleanAnd::class:
                return new Expression\Operators\Logical\BooleanAnd();
            case Node\Expr\BooleanNot::class:
                return new Expression\Operators\Logical\BooleanNot();
            case Node\Expr\BinaryOp\LogicalAnd::class:
                return new Expression\Operators\Logical\LogicalAnd();
            case Node\Expr\BinaryOp\LogicalOr::class:
                return new Expression\Operators\Logical\LogicalOr();
            case Node\Expr\BinaryOp\LogicalXor::class:
                return new Expression\Operators\Logical\LogicalXor();

            /**
             * Comparison
             */
            case Node\Expr\BinaryOp\Greater::class:
                return new Expression\Operators\Comparison\Greater();
            case Node\Expr\BinaryOp\GreaterOrEqual::class:
                return new Expression\Operators\Comparison\GreaterOrEqual();
            case Node\Expr\BinaryOp\Smaller::class:
                return new Expression\Operators\Comparison\Smaller();
            case Node\Expr\BinaryOp\SmallerOrEqual::class:
                return new Expression\Operators\Comparison\SmallerOrEqual();

            /**
             * Casts
             */
            case Node\Expr\Cast\Array_::class:
                return new Expression\Casts\ArrayCast();
            case Node\Expr\Cast\Bool_::class:
                return new Expression\Casts\BoolCast();
            case Node\Expr\Cast\Int_::class:
                return new Expression\Casts\IntCast();
            case Node\Expr\Cast\Double::class:
                return new Expression\Casts\DoubleCast();
            case Node\Expr\Cast\Object_::class:
                return new Expression\Casts\ObjectCast();
            case Node\Expr\Cast\String_::class:
                return new Expression\Casts\StringCast();
            case Node\Expr\Cast\Unset_::class:
                return new Expression\Casts\UnsetCast();


            /**
             * Other
             */
            case Node\Expr\Array_::class:
                return new Expression\ArrayOp();
            case Node\Expr\Assign::class:
                return new Expression\Assign();
            case Node\Expr\AssignRef::class:
                return new Expression\AssignRef();
            case Node\Expr\Closure::class:
                return new Expression\Closure();
            case Node\Expr\ConstFetch::class:
                return new Expression\ConstFetch();
            case Node\Expr\ClassConstFetch::class:
                return new Expression\ClassConstFetch();
            case Node\Expr\PropertyFetch::class:
                return new Expression\PropertyFetch();
            case Node\Expr\StaticPropertyFetch::class:
                return new Expression\StaticPropertyFetch();
            case Node\Expr\ArrayDimFetch::class:
                return new Expression\ArrayDimFetch();
            case Node\Expr\UnaryMinus::class:
                return new Expression\Operators\UnaryMinus();
            case Node\Expr\UnaryPlus::class:
                return new Expression\Operators\UnaryPlus();
            case Node\Expr\Exit_::class:
                return new Expression\ExitOp();
            case Node\Expr\Isset_::class:
                return new Expression\IssetOp();
            case Node\Expr\Print_::class:
                return new Expression\PrintOp();
            case Node\Expr\Empty_::class:
                return new Expression\EmptyOp();
            case Node\Expr\Eval_::class:
                return new Expression\EvalOp();
            case Node\Expr\ShellExec::class:
                return new Expression\ShellExec();
            case Node\Expr\ErrorSuppress::class:
                return new Expression\ErrorSuppress();
            case Node\Expr\Include_::class:
                return new Expression\IncludeOp();
            case Node\Expr\Clone_::class:
                return new Expression\CloneOp();
            case Node\Expr\Ternary::class:
                return new Expression\Ternary();
            case Node\Expr\Yield_::class:
                return new Expression\YieldOp();
            case Node\Expr\YieldFrom::class:
                return new Expression\YieldFrom();
            case Node\Expr\Variable::class:
                return new Expression\Variable();
        }

        return false;
    }

    /**
     * @param object|string $expr
     * @throws InvalidArgumentException when $expr is not string/object/null
     * @throws RuntimeException when compiler class does not return a CompiledExpression
     * @return CompiledExpression
     */
    public function compile($expr)

    {
        if (is_string($expr)) {
            return new CompiledExpression(CompiledExpression::STRING, $expr);
        }

        if (is_null($expr)) {
            return new CompiledExpression(CompiledExpression::NULL);
        }

        if (!is_object($expr)) {
            throw new InvalidArgumentException('$expr must be string/object/null');
        }

        $this->eventManager->fire(
            ExpressionBeforeCompile::EVENT_NAME,
            new ExpressionBeforeCompile(
                $expr,
                $this->context
            )
        );

        $className = get_class($expr);
        switch ($className) {
            case Node\Arg::class:
                /**
                 * @todo Better compile
                 */
                return $this->compile($expr->value);
            case Node\Stmt\Property::class:
                return $this->passProperty($expr);

            /**
             * Expressions
             */
            case Node\Name::class:
                return $this->getNodeName($expr);
            case Node\Name\FullyQualified::class:
                return $this->getFullyQualifiedNodeName($expr);

            /**
             * Simple Scalar(s)
             */
            case \PHPSA\Node\Scalar\Nil::class:
                return new CompiledExpression(CompiledExpression::NULL);
            case Node\Scalar\LNumber::class:
                return new CompiledExpression(CompiledExpression::INTEGER, $expr->value);
            case Node\Scalar\DNumber::class:
                return new CompiledExpression(CompiledExpression::DOUBLE, $expr->value);
            case Node\Scalar\String_::class:
                return new CompiledExpression(CompiledExpression::STRING, $expr->value);
            case \PHPSA\Node\Scalar\Boolean::class:
                return new CompiledExpression(CompiledExpression::BOOLEAN, $expr->value);
            case \PHPSA\Node\Scalar\Fake::class:
                return new CompiledExpression($expr->type, $expr->value);
        }

        $expressionCompiler = $this->factory($expr);
        if (!$expressionCompiler) {
            $this->context->debug("Expression compiler is not implemented for {$className}");
            return new CompiledExpression(CompiledExpression::UNIMPLEMENTED);
        }

        $result = $expressionCompiler->pass($expr, $this->context);
        if (!$result instanceof CompiledExpression) {
            throw new RuntimeException('Please return CompiledExpression from ' . get_class($expressionCompiler));
        }

        return $result;
    }

    /**
     * @todo Implement - needs to be a new analyzer for var docblock
     *
     * @param Node\Stmt\Property $st
     * @return CompiledExpression
     */
    public function passProperty(Node\Stmt\Property $st)

    {
        $docBlock = $st->getDocComment();
        if (!$docBlock) {
            return new CompiledExpression();
        }

        $phpdoc = DocBlockFactory::createInstance()->create($docBlock->getText());

        $varTags = $phpdoc->getTagsByName('var');
        if ($varTags) {

            /** @var \phpDocumentor\Reflection\DocBlock\Tag\VarTag $varTag */
            $varTag = current($varTags);

            $typeResolver = new \phpDocumentor\Reflection\TypeResolver();

            try {
                $type = $typeResolver->resolve($varTag->getType());
            } catch (\InvalidArgumentException $e) {
                return new CompiledExpression();
            }

            if ($type) {
                switch (get_class($type)) {
                    case \phpDocumentor\Reflection\Types\Object_::class:
                        return new CompiledExpression(
                            CompiledExpression::OBJECT
                        );
                    case \phpDocumentor\Reflection\Types\Integer::class:
                        return new CompiledExpression(
                            CompiledExpression::INTEGER
                        );
                    case \phpDocumentor\Reflection\Types\String_::class:
                        return new CompiledExpression(
                            CompiledExpression::STRING
                        );
                    case \phpDocumentor\Reflection\Types\Float_::class:
                        return new CompiledExpression(
                            CompiledExpression::DOUBLE
                        );
                    case \phpDocumentor\Reflection\Types\Null_::class:
                        return new CompiledExpression(
                            CompiledExpression::NULL
                        );
                    case \phpDocumentor\Reflection\Types\Boolean::class:
                        return new CompiledExpression(
                            CompiledExpression::BOOLEAN
                        );
                }
            }
        }

        return new CompiledExpression();
    }

    /**
     * @param Node\Expr\Variable $expr
     * @param mixed $value
     * @param int $type
     * @return CompiledExpression
     */
    public function declareVariable(Node\Expr\Variable $expr, $value = null, $type = CompiledExpression::UNKNOWN)
    {
        $variable = $this->context->getSymbol($expr->name);
        if (!$variable) {
            $variable = new Variable($expr->name, $value, $type, $this->context->getCurrentBranch());
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}
            $this->context->addVariable($variable);
        }

        return new CompiledExpression($variable->getType(), $variable->getValue(), $variable);
    }

    /**
     * @param Node\Name\FullyQualified $expr
     * @return CompiledExpression
     */
    public function getFullyQualifiedNodeName(Node\Name\FullyQualified $expr)
    {
        $this->context->debug('Unimplemented FullyQualified', $expr);

        return new CompiledExpression;
    }

    /**
     * @param Node\Name $expr
     * @return CompiledExpression
     */
    public function getNodeName(Node\Name $expr)
    {
        $nodeString = $expr->toString();
        if ($nodeString === 'null') {
            return new CompiledExpression(CompiledExpression::NULL);
        }

        if (in_array($nodeString, ['parent'], true)) {
            /** @var ClassDefinition $scope */
            $scope = $this->context->scope;
            assert($scope instanceof ClassDefinition);

            if ($scope->getExtendsClass()) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
                $definition = $scope->getExtendsClassDefinition();
                if ($definition) {
                    return new CompiledExpression(CompiledExpression::OBJECT, $definition);
                }
            } else {
                $this->context->notice(
                    'no-parent',
                    'Cannot access parent:: when current class scope has no parent',
                    $expr
                );
            }
        }

        if (in_array($nodeString, ['self', 'static'], true)) {
            return CompiledExpression::fromZvalValue($this->context->scope);
        }

        if (defined($nodeString)) {
            return CompiledExpression::fromZvalValue(constant($expr));
        }

        return new CompiledExpression(CompiledExpression::STRING, $expr->toString());
    }
}


1		<?php
2		/**
3		* @author Patsura Dmitry https://github.com/ovr <[email protected]>
4		*/
5
6		namespace PHPSA\Compiler;
7
8		use InvalidArgumentException;
9		use phpDocumentor\Reflection\DocBlockFactory;
10		use PHPSA\Check;
11		use PHPSA\CompiledExpression;
12		use PHPSA\Compiler\Event\ExpressionBeforeCompile;
13		use PHPSA\Context;
14		use PhpParser\Node;
15		use PHPSA\Definition\ClassDefinition;
16		use PHPSA\Exception\RuntimeException;
17		use PHPSA\Variable;
18		use PHPSA\Compiler\Expression\AbstractExpressionCompiler;
19		use Webiny\Component\EventManager\EventManager;
20
21		class Expression
		0 ignored issues – show Complexity introduced 2016-02-06 15:22 UTC by Report Bug Copy Issue Report This class has a complexity of 120 which exceeds the configured maximum of 50. The class complexity is the sum of the complexity of all methods. A very high value is usually an indication that your class does not follow the single reponsibility principle and does more than one job. Some resources for further reading: Single Reponsibility Principle Open/Closed Principle You can also find more detailed suggestions for refactoring in the “Code” section of your repository. Loading history...
22		{
23		/**
24		* @var Context
25		*/
26		protected $context;
27
28		/**
29		* @var EventManager
30		*/
31		protected $eventManager;
32
33		/**
34		* @param Context $context
35		*/
36	852	public function __construct(Context $context, EventManager $eventManager)
37		{
38	852	$this->context = $context;
39	852	$this->eventManager = $eventManager;
40	852	}
41
42		/**
43		* @param $expr
44		* @return ExpressionCompilerInterface\|AbstractExpressionCompiler
45		*/
46	842	protected function factory($expr)
47		{
48	842	switch (get_class($expr)) {
49		/**
50		* Call(s)
51		*/
52	842	case Node\Expr\MethodCall::class:
53		return new Expression\MethodCall();
54	842	case Node\Expr\FuncCall::class:
55	10	return new Expression\FunctionCall();
56	838	case Node\Expr\StaticCall::class:
57	1	return new Expression\StaticCall();
58		/**
59		* Operators
60		*/
61	837	case Node\Expr\New_::class:
62	2	return new Expression\Operators\NewOp();
63	837	case Node\Expr\Instanceof_::class:
64		return new Expression\Operators\InstanceOfOp();
65		/**
66		* AssignOp
67		*/
68	837	case Node\Expr\AssignOp\Pow::class:
69	21	return new Expression\AssignOp\Pow();
70	816	case Node\Expr\AssignOp\Plus::class:
71	17	return new Expression\AssignOp\Plus();
72	799	case Node\Expr\AssignOp\Minus::class:
73	20	return new Expression\AssignOp\Minus();
74	779	case Node\Expr\AssignOp\Mul::class:
75	20	return new Expression\AssignOp\Mul();
76	759	case Node\Expr\AssignOp\Div::class:
77	18	return new Expression\AssignOp\Div();
78	741	case Node\Expr\AssignOp\Mod::class:
79	11	return new Expression\AssignOp\Mod();
80	730	case Node\Expr\AssignOp\BitwiseOr::class:
81	12	return new Expression\AssignOp\BitwiseOr();
82	718	case Node\Expr\AssignOp\BitwiseAnd::class:
83	12	return new Expression\AssignOp\BitwiseAnd();
84	706	case Node\Expr\AssignOp\BitwiseXor::class:
85	12	return new Expression\AssignOp\BitwiseXor();
86	694	case Node\Expr\AssignOp\Concat::class:
87	14	return new Expression\AssignOp\Concat();
88	680	case Node\Expr\AssignOp\ShiftLeft::class:
89	12	return new Expression\AssignOp\ShiftLeft();
90	668	case Node\Expr\AssignOp\ShiftRight::class:
91	12	return new Expression\AssignOp\ShiftRight();
92
93		/**
94		* BinaryOp
95		*/
96	656	case Node\Expr\BinaryOp\Identical::class:
97	28	return new Expression\BinaryOp\Identical();
98	628	case Node\Expr\BinaryOp\Concat::class:
99	15	return new Expression\Operators\Concat();
100	614	case Node\Expr\BinaryOp\NotIdentical::class:
101	14	return new Expression\BinaryOp\NotIdentical();
102	600	case Node\Expr\BinaryOp\Equal::class:
103	43	return new Expression\BinaryOp\Equal();
104	571	case Node\Expr\BinaryOp\NotEqual::class:
105	17	return new Expression\BinaryOp\NotEqual();
106	554	case Node\Expr\BinaryOp\Spaceship::class:
107	11	return new Expression\BinaryOp\SpaceShip();
108	545	case Node\Expr\BinaryOp\Coalesce::class:
109	3	return new Expression\BinaryOp\Coalesce();
110
111		/**
112		* @link http://php.net/manual/en/language.operators.increment.php
113		*/
114	543	case Node\Expr\PostInc::class:
115	8	return new Expression\Operators\PostInc();
116	535	case Node\Expr\PostDec::class:
117	8	return new Expression\Operators\PostDec();
118	527	case Node\Expr\PreInc::class:
119	9	return new Expression\Operators\PreInc();
120	519	case Node\Expr\PreDec::class:
121	9	return new Expression\Operators\PreDec();
122		/**
123		* Arithmetical
124		*/
125	511	case Node\Expr\BinaryOp\Div::class:
126	37	return new Expression\Operators\Arithmetical\Div();
127	474	case Node\Expr\BinaryOp\Plus::class:
128	45	return new Expression\Operators\Arithmetical\Plus();
129	433	case Node\Expr\BinaryOp\Minus::class:
130	24	return new Expression\Operators\Arithmetical\Minus();
131	409	case Node\Expr\BinaryOp\Mul::class:
132	35	return new Expression\Operators\Arithmetical\Mul();
133	374	case Node\Expr\BinaryOp\Mod::class:
134	35	return new Expression\Operators\Arithmetical\Mod();
135	339	case Node\Expr\BinaryOp\Pow::class:
136	21	return new Expression\Operators\Arithmetical\Pow();
137
138		/**
139		* Bitwise
140		* @link http://php.net/manual/ru/language.operators.bitwise.php
141		*/
142	318	case Node\Expr\BinaryOp\BitwiseOr::class:
143	12	return new Expression\Operators\Bitwise\BitwiseOr();
144	306	case Node\Expr\BinaryOp\BitwiseXor::class:
145	12	return new Expression\Operators\Bitwise\BitwiseXor();
146	294	case Node\Expr\BinaryOp\BitwiseAnd::class:
147	12	return new Expression\Operators\Bitwise\BitwiseAnd();
148	282	case Node\Expr\BinaryOp\ShiftRight::class:
149	12	return new Expression\Operators\Bitwise\ShiftRight();
150	270	case Node\Expr\BinaryOp\ShiftLeft::class:
151	12	return new Expression\Operators\Bitwise\ShiftLeft();
152	258	case Node\Expr\BitwiseNot::class:
153	6	return new Expression\Operators\Bitwise\BitwiseNot();
154		/**
155		* Logical
156		*/
157	253	case Node\Expr\BinaryOp\BooleanOr::class:
158	17	return new Expression\Operators\Logical\BooleanOr();
159	238	case Node\Expr\BinaryOp\BooleanAnd::class:
160	15	return new Expression\Operators\Logical\BooleanAnd();
161	225	case Node\Expr\BooleanNot::class:
162	10	return new Expression\Operators\Logical\BooleanNot();
163	217	case Node\Expr\BinaryOp\LogicalAnd::class:
164	15	return new Expression\Operators\Logical\LogicalAnd();
165	204	case Node\Expr\BinaryOp\LogicalOr::class:
166	17	return new Expression\Operators\Logical\LogicalOr();
167	189	case Node\Expr\BinaryOp\LogicalXor::class:
168	17	return new Expression\Operators\Logical\LogicalXor();
169
170		/**
171		* Comparison
172		*/
173	174	case Node\Expr\BinaryOp\Greater::class:
174	13	return new Expression\Operators\Comparison\Greater();
175	162	case Node\Expr\BinaryOp\GreaterOrEqual::class:
176	12	return new Expression\Operators\Comparison\GreaterOrEqual();
177	150	case Node\Expr\BinaryOp\Smaller::class:
178	12	return new Expression\Operators\Comparison\Smaller();
179	138	case Node\Expr\BinaryOp\SmallerOrEqual::class:
180	12	return new Expression\Operators\Comparison\SmallerOrEqual();
181
182		/**
183		* Casts
184		*/
185	126	case Node\Expr\Cast\Array_::class:
186	3	return new Expression\Casts\ArrayCast();
187	125	case Node\Expr\Cast\Bool_::class:
188	8	return new Expression\Casts\BoolCast();
189	119	case Node\Expr\Cast\Int_::class:
190	8	return new Expression\Casts\IntCast();
191	113	case Node\Expr\Cast\Double::class:
192	8	return new Expression\Casts\DoubleCast();
193	107	case Node\Expr\Cast\Object_::class:
194	2	return new Expression\Casts\ObjectCast();
195	106	case Node\Expr\Cast\String_::class:
196	7	return new Expression\Casts\StringCast();
197	100	case Node\Expr\Cast\Unset_::class:
198	2	return new Expression\Casts\UnsetCast();
199
200
201		/**
202		* Other
203		*/
204	99	case Node\Expr\Array_::class:
205	37	return new Expression\ArrayOp();
206	70	case Node\Expr\Assign::class:
207	31	return new Expression\Assign();
208	52	case Node\Expr\AssignRef::class:
209	1	return new Expression\AssignRef();
210	52	case Node\Expr\Closure::class:
211		return new Expression\Closure();
212	52	case Node\Expr\ConstFetch::class:
213	8	return new Expression\ConstFetch();
214	49	case Node\Expr\ClassConstFetch::class:
215		return new Expression\ClassConstFetch();
216	49	case Node\Expr\PropertyFetch::class:
217		return new Expression\PropertyFetch();
218	49	case Node\Expr\StaticPropertyFetch::class:
219		return new Expression\StaticPropertyFetch();
220	49	case Node\Expr\ArrayDimFetch::class:
221		return new Expression\ArrayDimFetch();
222	49	case Node\Expr\UnaryMinus::class:
223	10	return new Expression\Operators\UnaryMinus();
224	40	case Node\Expr\UnaryPlus::class:
225	10	return new Expression\Operators\UnaryPlus();
226	30	case Node\Expr\Exit_::class:
227	1	return new Expression\ExitOp();
228	29	case Node\Expr\Isset_::class:
229	3	return new Expression\IssetOp();
230	26	case Node\Expr\Print_::class:
231	2	return new Expression\PrintOp();
232	25	case Node\Expr\Empty_::class:
233	5	return new Expression\EmptyOp();
234	20	case Node\Expr\Eval_::class:
235	2	return new Expression\EvalOp();
236	18	case Node\Expr\ShellExec::class:
237	1	return new Expression\ShellExec();
238	17	case Node\Expr\ErrorSuppress::class:
239	2	return new Expression\ErrorSuppress();
240	15	case Node\Expr\Include_::class:
241		return new Expression\IncludeOp();
242	15	case Node\Expr\Clone_::class:
243	1	return new Expression\CloneOp();
244	14	case Node\Expr\Ternary::class:
245	2	return new Expression\Ternary();
246	12	case Node\Expr\Yield_::class:
247		return new Expression\YieldOp();
248	12	case Node\Expr\YieldFrom::class:
249		return new Expression\YieldFrom();
250	12	case Node\Expr\Variable::class:
251	12	return new Expression\Variable();
252		}
253
254		return false;
255		}
256
257		/**
258		* @param object\|string $expr
259		* @throws InvalidArgumentException when $expr is not string/object/null
260		* @throws RuntimeException when compiler class does not return a CompiledExpression
261		* @return CompiledExpression
262		*/
263	852	public function compile($expr)
		0 ignored issues – show Complexity introduced 2016-02-06 15:22 UTC by Report Bug Copy Issue Report This operation has 320 execution paths which exceeds the configured maximum of 200. A high number of execution paths generally suggests many nested conditional statements and make the code less readible. This can usually be fixed by splitting the method into several smaller methods. You can also find more information in the “Code” section of your repository. Loading history...
264		{
265	852	if (is_string($expr)) {
266	18	return new CompiledExpression(CompiledExpression::STRING, $expr);
267		}
268
269	852	if (is_null($expr)) {
270	8	return new CompiledExpression(CompiledExpression::NULL);
271		}
272
273	852	if (!is_object($expr)) {
274		throw new InvalidArgumentException('$expr must be string/object/null');
275		}
276
277	852	$this->eventManager->fire(
278	852	ExpressionBeforeCompile::EVENT_NAME,
279	852	new ExpressionBeforeCompile(
280	852	$expr,
281	852	$this->context
282	852	)
283	852	);
284
285	852	$className = get_class($expr);
286		switch ($className) {
287	852	case Node\Arg::class:
288		/**
289		* @todo Better compile
290		*/
291	2	return $this->compile($expr->value);
292	852	case Node\Stmt\Property::class:
293		return $this->passProperty($expr);
294
295		/**
296		* Expressions
297		*/
298	852	case Node\Name::class:
299	28	return $this->getNodeName($expr);
300	852	case Node\Name\FullyQualified::class:
301		return $this->getFullyQualifiedNodeName($expr);
302
303		/**
304		* Simple Scalar(s)
305		*/
306	852	case \PHPSA\Node\Scalar\Nil::class:
307	25	return new CompiledExpression(CompiledExpression::NULL);
308	851	case Node\Scalar\LNumber::class:
309	515	return new CompiledExpression(CompiledExpression::INTEGER, $expr->value);
310	846	case Node\Scalar\DNumber::class:
311	212	return new CompiledExpression(CompiledExpression::DOUBLE, $expr->value);
312	845	case Node\Scalar\String_::class:
313	50	return new CompiledExpression(CompiledExpression::STRING, $expr->value);
314	844	case \PHPSA\Node\Scalar\Boolean::class:
315	241	return new CompiledExpression(CompiledExpression::BOOLEAN, $expr->value);
316	842	case \PHPSA\Node\Scalar\Fake::class:
317	79	return new CompiledExpression($expr->type, $expr->value);
318		}
319
320	842	$expressionCompiler = $this->factory($expr);
321	842	if (!$expressionCompiler) {
322		$this->context->debug("Expression compiler is not implemented for {$className}");
323		return new CompiledExpression(CompiledExpression::UNIMPLEMENTED);
324		}
325
326	842	$result = $expressionCompiler->pass($expr, $this->context);
327	842	if (!$result instanceof CompiledExpression) {
328		throw new RuntimeException('Please return CompiledExpression from ' . get_class($expressionCompiler));
329		}
330
331	842	return $result;
332		}
333
334		/**
335		* @todo Implement - needs to be a new analyzer for var docblock
336		*
337		* @param Node\Stmt\Property $st
338		* @return CompiledExpression
339		*/
340		public function passProperty(Node\Stmt\Property $st)
		0 ignored issues – show Comprehensibility introduced 2016-02-06 15:22 UTC by Report Bug Copy Issue Report Avoid variables with short names like $st. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
341		{
342		$docBlock = $st->getDocComment();
343		if (!$docBlock) {
344		return new CompiledExpression();
345		}
346
347		$phpdoc = DocBlockFactory::createInstance()->create($docBlock->getText());
348
349		$varTags = $phpdoc->getTagsByName('var');
350		if ($varTags) {
		0 ignored issues – show Bug Best Practice introduced 2016-05-08 22:00 UTC by Report Bug Copy Issue Report The expression `$varTags` of type `phpDocumentor\Reflection\DocBlock\Tag[]` is implicitly converted to a boolean; are you sure this is intended? If so, consider using `! empty($expr)` instead to make it clear that you intend to check for an array without elements. This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent. Consider making the comparison explicit by using `empty(..)` or `! empty(...)` instead. Loading history...
351		/** @var \phpDocumentor\Reflection\DocBlock\Tag\VarTag $varTag */
352		$varTag = current($varTags);
353
354		$typeResolver = new \phpDocumentor\Reflection\TypeResolver();
355
356		try {
357		$type = $typeResolver->resolve($varTag->getType());
358		} catch (\InvalidArgumentException $e) {
359		return new CompiledExpression();
360		}
361
362		if ($type) {
363		switch (get_class($type)) {
364		case \phpDocumentor\Reflection\Types\Object_::class:
365		return new CompiledExpression(
366		CompiledExpression::OBJECT
367		);
368		case \phpDocumentor\Reflection\Types\Integer::class:
369		return new CompiledExpression(
370		CompiledExpression::INTEGER
371		);
372		case \phpDocumentor\Reflection\Types\String_::class:
373		return new CompiledExpression(
374		CompiledExpression::STRING
375		);
376		case \phpDocumentor\Reflection\Types\Float_::class:
377		return new CompiledExpression(
378		CompiledExpression::DOUBLE
379		);
380		case \phpDocumentor\Reflection\Types\Null_::class:
381		return new CompiledExpression(
382		CompiledExpression::NULL
383		);
384		case \phpDocumentor\Reflection\Types\Boolean::class:
385		return new CompiledExpression(
386		CompiledExpression::BOOLEAN
387		);
388		}
389		}
390		}
391
392		return new CompiledExpression();
393		}
394
395		/**
396		* @param Node\Expr\Variable $expr
397		* @param mixed $value
398		* @param int $type
399		* @return CompiledExpression
400		*/
401	1	public function declareVariable(Node\Expr\Variable $expr, $value = null, $type = CompiledExpression::UNKNOWN)
402		{
403	1	$variable = $this->context->getSymbol($expr->name);
404	1	if (!$variable) {
405	1	$variable = new Variable($expr->name, $value, $type, $this->context->getCurrentBranch());
		0 ignored issues – show Bug introduced 2016-10-03 13:50 UTC by Report Bug Copy Issue Report It seems like `$expr->name` can also be of type `object<PhpParser\Node\Expr>`; however, `PHPSA\Variable::__construct()` does only seem to accept `string`, maybe add an additional type check? If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check: /** * @return array\|string */ function returnsDifferentValues($x) { if ($x) { return 'foo'; } return array(); } $x = returnsDifferentValues($y); if (is_array($x)) { // $x is an array. } If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue. Loading history...
406	1	$this->context->addVariable($variable);
407	1	}
408
409	1	return new CompiledExpression($variable->getType(), $variable->getValue(), $variable);
410		}
411
412		/**
413		* @param Node\Name\FullyQualified $expr
414		* @return CompiledExpression
415		*/
416		public function getFullyQualifiedNodeName(Node\Name\FullyQualified $expr)
417		{
418		$this->context->debug('Unimplemented FullyQualified', $expr);
419
420		return new CompiledExpression;
421		}
422
423		/**
424		* @param Node\Name $expr
425		* @return CompiledExpression
426		*/
427	28	public function getNodeName(Node\Name $expr)
428		{
429	28	$nodeString = $expr->toString();
430	28	if ($nodeString === 'null') {
431	1	return new CompiledExpression(CompiledExpression::NULL);
432		}
433
434	28	if (in_array($nodeString, ['parent'], true)) {
435		/** @var ClassDefinition $scope */
436		$scope = $this->context->scope;
437		assert($scope instanceof ClassDefinition);
438
439		if ($scope->getExtendsClass()) {
		0 ignored issues – show Bug Best Practice introduced 2016-01-18 21:09 UTC by Report Bug Copy Issue Report The expression `$scope->getExtendsClass()` of type `string\|null` is loosely compared to `true`; this is ambiguous if the string can be empty. You might want to explicitly use `!== null` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `string` values, the empty string `''` is a special case, in particular the following results might be unexpected: '' == false // true '' == null // true 'ab' == false // false 'ab' == null // false // It is often better to use strict comparison '' === false // false '' === null // false Loading history...
440		$definition = $scope->getExtendsClassDefinition();
441		if ($definition) {
442		return new CompiledExpression(CompiledExpression::OBJECT, $definition);
443		}
444		} else {
445		$this->context->notice(
446		'no-parent',
447		'Cannot access parent:: when current class scope has no parent',
448		$expr
449		);
450		}
451		}
452
453	28	if (in_array($nodeString, ['self', 'static'], true)) {
454	1	return CompiledExpression::fromZvalValue($this->context->scope);
455		}
456
457	27	if (defined($nodeString)) {
458	8	return CompiledExpression::fromZvalValue(constant($expr));
459		}
460
461	23	return new CompiledExpression(CompiledExpression::STRING, $expr->toString());
462		}
463		}
464

ovr / phpsa

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Expression::__construct() A

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