The trait Idable provides a method equalsId that in turn relies on the
method getId(). If this method does not exist on a class mixing in this
trait, the method will fail.
Adding the getId() as an abstract method to the trait will make sure it
is available.
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17
}
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public function keys()
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{
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return new ImmArrayList(new LazyKeysIterable($this));
This method seems to be duplicated in your project.
Duplicated code is one of the most pungent code smells. If you need to duplicate
the same code in three or more different places, we strongly encourage you to
look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.
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{
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if (is_array($iterable)) {
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$iterable = new ImmArrayList($iterable);
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}
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if ($iterable instanceof \Traversable) {
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return new ImmArrayList(new LazyConcatIterator($this, $iterable));
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} else {
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throw new \InvalidArgumentException('Parameter must be an array or an instance of Traversable');
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idable
provides a methodequalsId
that in turn relies on the methodgetId()
. If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()
as an abstract method to the trait will make sure it is available.