How to get the autocomplition working correctly for inherited methods in PhpStorm?

Question

There are two classes defined as follows:

class Foo
{
    private $aaa;
    public function setAaa(Aaa $aaa): self
    {
        $this->aaa = $aaa;
        return $this;
    }
}

class Bar extends Foo
{
    private $bbb;
    public function setBbb(Bbb $bbb): self
    {
        $this->bbb = $bbb;
        return $this;
    }
}

So here "fluent" setters are used. But PhpStorm seems to ignore this and displays a warning:

$bar = (new Bar())
    ->setAaa(new Aaa())
    ->setAaa(new Bbb())
;

Method 'setBbb' not found in ...\Foo

Is there a way to get the autocompletion working as expected ins such cases?

Answer 1

First of all -- fix your code sample -- make it real and not some PHP-looking chunk of text.

• class Bar extends -- extends what?
• what is setAaa() method?
• what is setBbb() method? Your code sample does not have it.

---

Anyway ... as for the actual question, after making all the changes so it looks like real PHP code...

Use PHPDoc and ensure that it says @return $this. Right now it interprets self in : self part as specific class (which is Foo) ... and setPropertyBbb() is obviously NOT available in Foo class. By specifying @return $this you make it fluent in IDE eyes.

<?php

class Foo
{
    private $aaa;

    /**
     * My super method
     *
     * @param Aaa $aaa
     * @return $this
     */
    public function setPropertyAaa(Aaa $aaa): self
    {
        $this->aaa = $aaa;
        return $this;
    }
}

class Bar extends Foo 
{
    private $bbb;
    public function setPropertyBbb(Bbb $bbb): self
    {
        $this->bbb = $bbb;
        return $this;
    }
}

$bar = (new Bar())
    ->setPropertyAaa(new Aaa())
    ->setPropertyBbb(new Bbb())
;