Attempting to mock a method with static return type in PHP 8 results in ParseError

[ramsey]

PHP 8.0 introduced the static return type.

When using Mockery to mock a method with a return type hint of static, PHP generates a ParseError, with a message similar to the following:

ParseError : syntax error, unexpected token "static", expecting identifier /private/var/folders/jt/dm973jds5b33ffvl0x2b8f940000gn/T/MockeryYyJCuE:1

The generated file contains the following:

<?php class static {} 

#1149 describes a similar issue with the mixed return type.

To Reproduce

💡 NOTE: To help, I've created a repository so you can quickly reproduce the issue: https://github.com/ramsey/mockery-static-return-type-bug

Create a class with a method on it that has a static return type hint:

<?php

namespace Foo;

class Foo
{
    public function setFoo(string $value): static
    {
        return $this;
    }
}

Create a PHPUnit test that attempts to create a Mockery mock of the class and method:

<?php

namespace Foo\Tests;

use Foo\Foo;
use Mockery;
use PHPUnit\Framework\TestCase;

class FooTest extends TestCase
{
    public function testFoo(): void
    {
        $fooMock = Mockery::mock(Foo::class);
        $fooMock->allows('setFoo');

        $fooMock->setFoo('some value');

        $this->assertTrue(true);
    }
}

Run the test on PHP 8.0 or 8.1.

[ghostwriter]

Resolved via #1157.