Commits on Feb 8, 2024

1. PHP 8.3 | Tokenizer/PHP: add support for typed OO constants …

   PHP 8.3 introduced typed OO constants, where the type is between the `const` keyword and the constant name.
   
   All type variations are supported, including nullable types, union types, intersection types, with the exception of `callable`, `void` and `never`.
   `self` and `static` types are only allowed in Enum constants.
   
   This PR adds support for typed OO constants in the Tokenizer layer of PHPCS.
   
   The following issues had to be fixed to support typed constants:
   1. Consistently tokenizing the constant _name_ as `T_STRING`, even if the name mirrors a reserved keyword, like `foreach` or a special keyword, like `self` or `true`.
   2. Tokenizing a `?` at the start of a constant type declaration as `T_NULLABLE`.
   3. Tokenizing a `|` and `&` operators within a constant type declaration as `T_TYPE_UNION` and `T_TYPE_INTERSECTION` respectively.
   
   Each and every part of the above has been covered by extensive tests.
   Includes additional tests safeguarding that the `array` keyword when used in a type declaration for a constant is tokenized as `T_STRING`.
   
   Ref: https://wiki.php.net/rfc/typed_class_constants

   

   jrfnl committed Feb 8, 2024
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