PHPSA\Analyzer\Pass\Statement\ReturnAndYieldInOneMethod

Complexity

Total Complexity

6

Size/Duplication

Total Lines	43
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	4

Test Coverage

Coverage

0%

Importance

Changes

0

2 Methods

Rating	Name	Duplication	Size	Complexity
A	pass()	0	20	5
A	getRegister()	0	6	1

<?php

namespace PHPSA\Analyzer\Pass\Statement;

use PhpParser\Node;
use PhpParser\Node\Stmt\ClassMethod;
use PHPSA\Analyzer\Helper\DefaultMetadataPassTrait;
use PHPSA\Analyzer\Helper\ResolveExpressionTrait;
use PHPSA\Analyzer\Pass;
use PHPSA\Context;

class ReturnAndYieldInOneMethod implements Pass\AnalyzerPassInterface
{
    const DESCRIPTION = 'Checks for using return and yield statements in a one method and discourages it.';

    use DefaultMetadataPassTrait;
    use ResolveExpressionTrait;

    /**
     * @param ClassMethod $func
     * @param Context $context
     * @return bool
     */
    public function pass(ClassMethod $func, Context $context)
    {
        $stmts = $func->getStmts();
        if ($stmts === null) {
            return false;
        }

        $yieldExists = \PHPSA\generatorHasValue($this->findNode($stmts, Node\Expr\Yield_::class));
        if (!$yieldExists) {
            // YieldFrom is another expression
            $yieldExists = \PHPSA\generatorHasValue($this->findNode($stmts, Node\Expr\YieldFrom::class));
        }

        if ($yieldExists && \PHPSA\generatorHasValue($this->findNode($stmts, Node\Stmt\Return_::class))) {
            $context->notice('return_and_yield_in_one_method', 'Do not use return and yield in a one method', $func);
            return true;
        }

        return false;
    }

    /**
     * @return array
     */
    public function getRegister()
    {
        return [
            ClassMethod::class,
        ];
    }
}