Return type in `@method` starting with `static` cannot be parsed

[mvorisek]

Bug report

I know the current workaround is to place parenthesis around the return type, but this is problematic, as almost every CS fixer removes the parenthesis.

Like \Closure(): void, ie. type even with space is supported [1], unioned (and intersected) types should be supported as well.

[1] https://phpstan.org/r/e9b294c3-2f5f-42a1-b4a7-c2ad93a83c2f

Code snippet that reproduces the problem

https://phpstan.org/r/ad8c4bfc-4c57-48fc-838e-fc3d14a6d491

Expected output

no phpstan parser error

[mvorisek]

https://github.com/phpstan/phpdoc-parser/blob/1.25.0/doc/grammars/phpdoc-method.peg#L11 grammar already allows in as defined in https://github.com/phpstan/phpdoc-parser/blob/1.25.0/doc/grammars/type.abnf#L6

I wonder why the method grammar files are named *.peg instead of *.abnf and if fuzzed/tested.

[JanTvrdik]

That has nothing to do with the type being union. It because it's a grammar conflict with static methods.

So for example, if you could use any of the following, it works just fine:

• $this|null
• ?static
• null|static

[JanTvrdik]

I tried improving the conflict resolution logic we use: https://github.com/phpstan/phpdoc-parser/pull/230

[mvorisek]

Jan, thank you!

[ondrejmirtes]

Implemented https://github.com/phpstan/phpdoc-parser/pull/230

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