[PropertyInfo] Add support for phpDocumentor and PHPStan pseudo-types #44451

EmilMassey · 2021-12-03T16:05:11Z

Q	A
Branch?	6.1
Bug fix?	no
New feature?	yes
Deprecations?	no
Tickets	-
License	MIT
Doc PR	-

More and more apps are using pseudo-types like non-empty-string, positive-int which are understood by static analysis tools but are not a part of the language. This PR adds support for these types to PhpDocExtractor and PhpStanExtractor. Pseudo-type is mapped to built-in type(s) (e.g. non-empty-string => string, positive-int => int, number => int|float).

This PR adds support for all pseudo-types defined by the phpDocumentor (some of them like list or true, false are already supported) and PHPStan's basic types.

carsonbot · 2021-12-03T16:05:15Z

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stof · 2021-12-03T16:16:08Z

The PhpstanExtractor should support the phpstan pseudo-types

EmilMassey · 2021-12-03T16:50:47Z

The PhpstanExtractor should support the phpstan pseudo-types

I agree and it would be great if PropertyInfo supported all of PHPStan's types, but it is a very complex system with integer ranges, generics, complex array shapes, literals and constants etc. so it will need a lot of work to support them all. We can work on it in future PRs but I think it is too much for just one PR.

All pseudo-types that are currently supported by phpDocumentor are also valid PHPStan pseudo-types so it didn't make sense to me not to add them to PhpstanExtractor. It can already recognize true, false or list pseudo-types and my PR adds just some more to the list. I know it's incomplete but we can gradually add support for more types. At the moment the problem is that there's no such list with all pseudo-types recognized by the PHPStan and I'm sure there will be more and more types as the tool evolves dynamically.

stof · 2021-12-03T17:07:43Z

@EmilMassey supporting the full type system might be too complex indeed. But you could at least support the full list of pseudo-types (i.e. also negative-int).
the phpdoc types are documented at https://phpstan.org/writing-php-code/phpdoc-types. And you can look at the source code in case the doc is incomplete: https://github.com/phpstan/phpstan-src/blob/c2ff0bd31327e861f651e55db364823cba0f0262/src/PhpDoc/TypeNodeResolver.php#L130

dunglas

In a future iteration, it could be useful to give access to the pseudo type to the end use.

For instance, this could help generating a more precise JSON Schema in API Platform.

src/Symfony/Component/PropertyInfo/Tests/Fixtures/PseudoTypesDummy.php

derrabus

The low-deps test failure looks related. Can you have a look?

EmilMassey · 2021-12-13T19:38:36Z

The low-deps test failure looks related. Can you have a look?

Fixed, thanks

src/Symfony/Component/PropertyInfo/composer.json

Korbeil

Thanks for adding this feature to PhpStanExtractor !

nicolas-grekas

Not sure: do we need to merge this as a bugfix on 5.4 since we changed the default extractor, and not supporting theses types might break existing apps?

In a future iteration, it could be useful to give access to the pseudo type to the end use.

true, PR welcome or issue at least :)

src/Symfony/Component/PropertyInfo/CHANGELOG.md

src/Symfony/Component/PropertyInfo/Tests/Extractor/PhpDocExtractorTest.php

src/Symfony/Component/PropertyInfo/Tests/Extractor/PhpStanExtractorTest.php

src/Symfony/Component/PropertyInfo/Tests/Fixtures/PhpStanPseudoTypesDummy.php

src/Symfony/Component/PropertyInfo/Util/PhpDocTypeHelper.php

derrabus · 2021-12-16T22:50:49Z

Not sure: do we need to merge this as a bugfix on 5.4

The change is too heavy for a bugfix, imho.

since we changed the default extractor, and not supporting theses types might break existing apps?

The PHPDoc extractor on 5.3 did not understand most pseudo-types either. See #44578.

nicolas-grekas · 2021-12-17T10:00:48Z

Thank you @EmilMassey.

@var

… (EmilMassey) This PR was squashed before being merged into the 4.4 branch. Discussion ---------- [PropertyInfo] strip only leading `\` when unknown docType | Q | A | ------------- | --- | Branch? | 4.4, 5.4, 6.0 | Bug fix? | yes | New feature? | no | Deprecations? | no | Tickets | Fix #44455 (partially) | License | MIT | Doc PR | - Fixes issue in `PhpDocExtractor` when dealing with some pseudo-types (`non-empty-string`, `positive-int`, etc.): ```php class TestClass { /** @var non-empty-string */ public $foo; /** @var positive-int */ public $bar; } $extractor = new \Symfony\Component\PropertyInfo\Extractor\PhpDocExtractor(); $fooType = $extractor->getTypes(TestClass::class, 'foo'); // $builtinType: object, $class: on-empty-string (first character trimmed) $barType = $extractor->getTypes(TestClass::class, 'bar'); // $builtinType: object, $class: ositive-int (first character trimmed) ``` The bug exists in 4.4, 5.4 and 6.0. It may exist in 6.1 as the invalid line is still there, but due to changes made in #44451, above snippet will no longer produce the bug. I was not able to reproduce the error in 6.1, but I suspect there may exist some pseudo-type that is still affected by the bug. I'm not sure if the test I wrote is OK, but it is the only way I could think of to validate my fix. In my opinion (see #44455), unknown pseudo-type should not be mapped to an object, so after the fix handling of pseudo-types is still broken but at least the results are consistent between `PhpStanExtractor` and `PhpDocExtractor`. But I agree with @derrabus (#44455 (comment)) that until there is no way to detect if we are dealing with a pseudo-type, assuming it is a reference to an object is the sanest thing to do. Commits ------- 723cd09 [PropertyInfo] strip only leading `\` when unknown docType

astronom · 2022-09-30T09:04:37Z

@nicolas-grekas if it possible to backport this changes to 5.4 branch?

nicolas-grekas · 2022-09-30T09:07:16Z

That's a new feature. 5.4 only accepts bug fixes now.

EmilMassey · 2022-09-30T13:28:40Z

@astronom If you need to support extracting these pseudotypes in v5.4, you can implement your own extractor. Note that this implementation requires phpstan/phpdoc-parser and I tested it in v5.3, so with v5.4 it may require some tweaks.

EmilMassey requested a review from dunglas as a code owner December 3, 2021 16:05

carsonbot added Status: Needs Review Feature PropertyInfo labels Dec 3, 2021

carsonbot added this to the 6.1 milestone Dec 3, 2021

EmilMassey changed the title ~~[PropertyInfo] Add support for phpDocumentor pseudo-types~~ [PropertyInfo] Add support for phpDocumentor and PHPStan pseudo-types Dec 3, 2021

EmilMassey mentioned this pull request Dec 3, 2021

[PropertyInfo] Incorrect handling of pseudo-types #44455

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dunglas approved these changes Dec 4, 2021

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EmilMassey requested a review from derrabus December 13, 2021 19:39

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EmilMassey mentioned this pull request Dec 14, 2021

[PropertyInfo] Fix phpstan extractor issues #44578

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nicolas-grekas reviewed Dec 16, 2021

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[PropertyInfo] Add support for phpDocumentor and PHPStan pseudo-types

3e49b0f

nicolas-grekas merged commit 53e49a8 into symfony:6.1 Dec 17, 2021

nicolas-grekas mentioned this pull request Dec 17, 2021

[PropertyInfo] Add support for phpDocumentor and PHPStan pseudo-types symfony/symfony-docs#16297

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EmilMassey deleted the propertyinfo-pseudotypes branch December 17, 2021 12:12

EmilMassey mentioned this pull request Mar 11, 2022

[PropertyInfo] strip only leading \ when unknown docType #45720

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fabpot mentioned this pull request Apr 15, 2022

Release v6.1.0-BETA1 #46049

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xabbuh mentioned this pull request Sep 30, 2022

Serializer thrown exception when property have "class-string<>" annotation #47736

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EmilMassey mentioned this pull request Dec 28, 2023

Serializer psalm/phpstan types support #51673

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[PropertyInfo] Add support for phpDocumentor and PHPStan pseudo-types #44451

[PropertyInfo] Add support for phpDocumentor and PHPStan pseudo-types #44451

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[PropertyInfo] Add support for phpDocumentor and PHPStan pseudo-types #44451

[PropertyInfo] Add support for phpDocumentor and PHPStan pseudo-types #44451

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