Vscode-intelephense: Destructuring tuple in array makes variable type `unset`

[swashata]

Describe the bug

When using destructuring syntax of PHP, the variables gets unset type.

To Reproduce

Please consider the following code

function get_some_array() : array {
    return [
        '123',
        false,
        'stuff',
    ];
}

[ $one, $two, $three ] = get_some_array();
// type of $one is unset ❌
// type of $two is unset ❌
// type of $three is unset ❌

$all = get_some_array();

$all_one = $all[0];
// type of $all_one is mixed ✅

Expected behavior

$one, $two and $three should have mixed type, not unset type.

Platform and version

• OS: Mojave
• Intelephense: 1.3.1

[KapitanOczywisty]

Seems like this is not implemented in extension https://wiki.php.net/rfc/short_list_syntax#proposal

[swashata]

@KapitanOczywisty This is already implemented in PHP 7.1

[KapitanOczywisty]

@swashata I meant by extension