SourceInterpreter::getInterpretation() - Code Metrics - TimeToogo/Pinq - Measure and Improve Code Quality continuously with Scrutinizer

SourceInterpreter::getInterpretation() A
last analyzed 2017-09-06 06:30 UTC

↳ Parent: SourceInterpreter

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

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

<?php

namespace Pinq\Queries\Builders;

use Pinq\Expressions as O;
use Pinq\IQueryable;
use Pinq\Queries\Builders\Interpretations\ISourceInterpretation;
use Pinq\Queries;

/**
 * Implementation of the source expression interpreter.
 *
 * @author Elliot Levin <[email protected]>
 */
class SourceInterpreter extends ExpressionInterpreter implements ISourceInterpreter
{
    /**
     * @var string
     */
    protected $segmentId;

    /**
     * @var ISourceInterpretation
     */
    protected $interpretation;

    /**
     * @var IScopeInterpreter
     */
    protected $scopeInterpreter;

    public function __construct(
            $segmentId,
            ISourceInterpretation $interpretation,
            IScopeInterpreter $scopeInterpreter,
            O\IEvaluationContext $evaluationContext = null
    ) {
        parent::__construct($segmentId, $evaluationContext);
        $this->interpretation   = $interpretation;
        $this->scopeInterpreter = $scopeInterpreter;
    }

    public function getInterpretation()
    {
        return $this->interpretation;
    }

    public function interpretSource(O\Expression $expression)
    {
        $isQueryScope = false;
        $queryableQueryResolver = new O\DynamicExpressionWalker([
                O\TraversalExpression::getType() =>
                        function (O\TraversalExpression $expression, O\ExpressionWalker $self) use (&$isQueryScope) {
                            $expression = $expression->updateValue($self->walk($expression->getValue()));

                            if ($isQueryScope) {
                                return $expression;
                            } else {
                                return $self->walk(O\Expression::value($expression->evaluate($this->evaluationContext)));
                            }
                        },
                O\ValueExpression::getType() =>
                        function (O\ValueExpression $expression) use (&$isQueryScope) {
                            if ($expression->getValue() instanceof IQueryable) {
                                $isQueryScope = true;
                            }

                            return $expression;
                        }
        ]);

        $expression = $queryableQueryResolver->walk($expression);

        if ($isQueryScope) {
            $this->scopeInterpreter->interpretScope($expression);
/** @return stdClass|null */
function mayReturnNull() { }

function doesNotAcceptNull(stdClass $x) { }

// With potential error.
function withoutCheck() {
    $x = mayReturnNull();
    doesNotAcceptNull($x); // Potential error here.
}

// Safe - Alternative 1
function withCheck1() {
    $x = mayReturnNull();
    if ( ! $x instanceof stdClass) {
        throw new \LogicException('$x must be defined.');
    }
    doesNotAcceptNull($x);
}

// Safe - Alternative 2
function withCheck2() {
    $x = mayReturnNull();
    if ($x instanceof stdClass) {
        doesNotAcceptNull($x);
    }
}
            $this->interpretation->interpretQueryScope($this->getId('source-scope'), $this->scopeInterpreter->getInterpretation());
        } else {
            $this->interpretation->interpretArrayOrIterator($this->getId('source-iterator'), $expression->evaluate($this->evaluationContext));
        }
    }
}


1			<?php
2
3			namespace Pinq\Queries\Builders;
4
5			use Pinq\Expressions as O;
6			use Pinq\IQueryable;
7			use Pinq\Queries\Builders\Interpretations\ISourceInterpretation;
8			use Pinq\Queries;
9
10			/**
11			* Implementation of the source expression interpreter.
12			*
13			* @author Elliot Levin <[email protected]>
14			*/
15			class SourceInterpreter extends ExpressionInterpreter implements ISourceInterpreter
16			{
17			/**
18			* @var string
19			*/
20			protected $segmentId;
21
22			/**
23			* @var ISourceInterpretation
24			*/
25			protected $interpretation;
26
27			/**
28			* @var IScopeInterpreter
29			*/
30			protected $scopeInterpreter;
31
32			public function __construct(
33			$segmentId,
34			ISourceInterpretation $interpretation,
35			IScopeInterpreter $scopeInterpreter,
36			O\IEvaluationContext $evaluationContext = null
37			) {
38			parent::__construct($segmentId, $evaluationContext);
39			$this->interpretation = $interpretation;
40			$this->scopeInterpreter = $scopeInterpreter;
41			}
42
43			public function getInterpretation()
44			{
45			return $this->interpretation;
46			}
47
48			public function interpretSource(O\Expression $expression)
49			{
50			$isQueryScope = false;
51			$queryableQueryResolver = new O\DynamicExpressionWalker([
52			O\TraversalExpression::getType() =>
53			function (O\TraversalExpression $expression, O\ExpressionWalker $self) use (&$isQueryScope) {
54			$expression = $expression->updateValue($self->walk($expression->getValue()));
55
56			if ($isQueryScope) {
57			return $expression;
58			} else {
59			return $self->walk(O\Expression::value($expression->evaluate($this->evaluationContext)));
60			}
61			},
62			O\ValueExpression::getType() =>
63			function (O\ValueExpression $expression) use (&$isQueryScope) {
64			if ($expression->getValue() instanceof IQueryable) {
65			$isQueryScope = true;
66			}
67
68			return $expression;
69			}
70			]);
71
72			$expression = $queryableQueryResolver->walk($expression);
73
74			if ($isQueryScope) {
75			$this->scopeInterpreter->interpretScope($expression);
			0 ignored issues – show Bug introduced 2016-08-30 06:48 UTC by Report Bug Copy Issue Report It seems like `$expression` defined by `$queryableQueryResolver->walk($expression)` on line `72` can be `null`; however, `Pinq\Queries\Builders\IS...reter::interpretScope()` does not accept `null`, maybe add an additional type check? Unless you are absolutely sure that the expression can never be null because of other conditions, we strongly recommend to add an additional type check to your code: /** @return stdClass\|null */ function mayReturnNull() { } function doesNotAcceptNull(stdClass $x) { } // With potential error. function withoutCheck() { $x = mayReturnNull(); doesNotAcceptNull($x); // Potential error here. } // Safe - Alternative 1 function withCheck1() { $x = mayReturnNull(); if ( ! $x instanceof stdClass) { throw new \LogicException('$x must be defined.'); } doesNotAcceptNull($x); } // Safe - Alternative 2 function withCheck2() { $x = mayReturnNull(); if ($x instanceof stdClass) { doesNotAcceptNull($x); } } Loading history...
76			$this->interpretation->interpretQueryScope($this->getId('source-scope'), $this->scopeInterpreter->getInterpretation());
77			} else {
78			$this->interpretation->interpretArrayOrIterator($this->getId('source-iterator'), $expression->evaluate($this->evaluationContext));
79			}
80			}
81			}
82

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SourceInterpreter::getInterpretation() A last analyzed 2017-09-06 06:30 UTC

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SourceInterpreter::getInterpretation() A
last analyzed 2017-09-06 06:30 UTC