phpmetrics /
PhpMetrics
| Conditions | 20 |
| Paths | 5 |
| Total Lines | 68 |
| Lines | 27 |
| Ratio | 39.71 % |
| Changes | 0 | ||
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | <?php |
||
| 38 | public function leaveNode(Node $node) |
||
| 39 | { |
||
| 40 | if ($node instanceof Stmt\Class_ || $node instanceof Stmt\Trait_) { |
||
| 41 | // we build a graph of internal dependencies in class |
||
| 42 | $graph = new GraphDeduplicated(); |
||
| 43 | |||
| 44 | $name = MetricClassNameGenerator::getName($node); |
||
| 45 | $class = $this->metrics->get($name); |
||
| 46 | if ($class === null) { |
||
| 47 | throw new MetricNullException($name, self::class); |
||
| 48 | } |
||
| 49 | |||
| 50 | foreach ($node->stmts as $stmt) { |
||
| 51 | if ($stmt instanceof Stmt\ClassMethod) { |
||
| 52 | if (!$graph->has($stmt->name . '()')) { |
||
| 53 | $graph->insert(new TreeNode($stmt->name . '()')); |
||
| 54 | } |
||
| 55 | $from = $graph->get($stmt->name . '()'); |
||
| 56 | if ($from === null) { |
||
| 57 | throw new ShouldNotHappenException('Graph $from is null'); |
||
| 58 | } |
||
| 59 | |||
| 60 | \iterate_over_node($stmt, function ($node) use ($from, &$graph) { |
||
| 61 | View Code Duplication | if ($node instanceof Node\Expr\PropertyFetch && isset($node->var->name) && $node->var->name == 'this') { |
|
|
|
|||
| 62 | $name = (string)getNameOfNode($node); |
||
| 63 | // use of attribute $this->xxx; |
||
| 64 | if (!$graph->has($name)) { |
||
| 65 | $graph->insert(new TreeNode($name)); |
||
| 66 | } |
||
| 67 | $to = $graph->get($name); |
||
| 68 | if ($to === null) { |
||
| 69 | throw new ShouldNotHappenException('Graph $to is null'); |
||
| 70 | } |
||
| 71 | $graph->addEdge($from, $to); |
||
| 72 | return; |
||
| 73 | } |
||
| 74 | |||
| 75 | if ($node instanceof Node\Expr\MethodCall) { |
||
| 76 | View Code Duplication | if (!$node->var instanceof Node\Expr\New_ && isset($node->var->name) && getNameOfNode($node->var) === 'this') { |
|
| 77 | // use of method call $this->xxx(); |
||
| 78 | // use of attribute $this->xxx; |
||
| 79 | $name = getNameOfNode($node->name) . '()'; |
||
| 80 | if (!$graph->has($name)) { |
||
| 81 | $graph->insert(new TreeNode($name)); |
||
| 82 | } |
||
| 83 | $to = $graph->get($name); |
||
| 84 | if ($to === null) { |
||
| 85 | throw new ShouldNotHappenException('Graph $to is null'); |
||
| 86 | } |
||
| 87 | $graph->addEdge($from, $to); |
||
| 88 | return; |
||
| 89 | } |
||
| 90 | } |
||
| 91 | }); |
||
| 92 | } |
||
| 93 | } |
||
| 94 | |||
| 95 | // we count paths |
||
| 96 | $paths = 0; |
||
| 97 | foreach ($graph->all() as $node) { |
||
| 98 | $paths += $this->traverse($node); |
||
| 99 | } |
||
| 100 | |||
| 101 | $class->set('lcom', $paths); |
||
| 102 | } |
||
| 103 | |||
| 104 | return null; |
||
| 105 | } |
||
| 106 | |||
| 127 |
Loading history...
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.