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Informations about the package portable-hack-ast-linters

portable-hack-ast-linters

Hack source code linters authored with portable-hack-ast

How to lint my code

If you've used HHAST before, you might expect that you'd be able to add a hhast-lint.json or alike to your repository to start linting right away. PhaLinters does not work this way. You must add a Hack source code file which does the linting and call the linters directly. The linters are in the HTL\PhaLinters namespace, so autocomplete away.

This library lints itself. You can check lint.hack and copy it verbatim. This file is explicitly licensed as MIT-0, not MIT like the rest of this library. This means you can do all the things permitted by the MIT license, without having to keep the license comment in the file intact. This choice of license does not change the license for the rest of this project.

Which linters are included?

For the full list, see bundled linters, almost all linters from HHAST are included, and some never before seen linters, only available in portable-hack-ast-linters.

Missing linters from HHAST

Some linters from HHAST are not included in this library.

Fixme directives

Lint errors can't (and shouldn't) always be fixed. Sometimes an await-in-a-loop isn't a sign of a false dependency for example in sgml-stream's ConcurrentReusableRenderer:

The $snippet->feedBytesToConsumerAsync(...) method awaits an Awaitable that was already started in ->primeAsync(...). Internally, it also awaits on $consumer->consumeAsync(...) which must be called sequentially. This await-in-a-loop is required for the code to work correctly. To inform hhast, a HHAST_IGNORE_ERROR[DontAwaitInALoop] comment was added.

This comment-to-suppress-a-lint-error mechanism has always bothered me a little. I subscribe wholehartedly to the following quote from the CppCoreGuidelines:

As a replacement for fixme comments, PhaLinters uses the pragma(...) directive and the <<Pragmas(...)>> annotation. The following pieces of code express the same intent.


All versions of portable-hack-ast-linters with dependencies

PHP Build Version
Package Version
Requires hhvm Version ^4.102
hershel-theodore-layton/portable-hack-ast Version dev-master || <1
hershel-theodore-layton/portable-hack-ast-extras Version dev-master || <1
hershel-theodore-layton/pragma Version <1
Composer command for our command line client (download client) This client runs in each environment. You don't need a specific PHP version etc. The first 20 API calls are free. Standard composer command

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