1## Coding Style 2 3This project uses PSR-12 with consistent brace placement. This means that the opening brace is 4always on the same line, even for class and method declarations. 5 6## Tools 7 8This project uses PHP-CS-Fixer and PHPStan. You can invoke them using `make`: 9 10```shell 11make php-cs-fixer 12make phpstan 13``` 14 15## Adding support for new PHP syntax 16 171. If necessary, add emulation support for new tokens. 18 * Add a new subclass of `Lexer\TokenEmulator`. Take inspiration from existing classes. 19 * Add the new class to the array in `Lexer\Emulative`. 20 * Add tests for the emulation in `Lexer\EmulativeTest`. You'll want to modify 21 `provideTestReplaceKeywords()` for new reserved keywords and `provideTestLexNewFeatures()` for 22 other emulations. 232. Add any new node classes that are needed. 243. Add support for the new syntax in `grammar/php.y`. Regenerate the parser by running 25 `php grammar/rebuildParsers.php`. Use `--debug` if there are conflicts. 264. Add pretty-printing support by implementing a `pFooBar()` method in `PrettyPrinter\Standard`. 275. Add tests both in `test/code/parser` and `test/code/prettyPrinter`. 286. Add support for formatting-preserving pretty-printing. This is done by modifying the data tables 29 at the end of `PrettyPrinterAbstract`. Add a test in `test/code/formatPreservation`. 307. Does the new syntax feature namespaced names? If so, add support for name resolution in 31 `NodeVisitor\NameResolver`. Test it in `NodeVisitor\NameResolverTest`. 328. Does the new syntax require any changes to builders? Is so, make them :) 33
