mirror of
https://github.com/danog/psalm.git
synced 2024-11-27 04:45:20 +01:00
74 lines
3.6 KiB
Markdown
74 lines
3.6 KiB
Markdown
# File-based plugins
|
|
|
|
Psalm can be extended through plugins to find domain-specific issues.
|
|
|
|
Plugins may implement one of (or more than one of) `Psalm\Plugin\Hook\*` interface(s).
|
|
|
|
```php
|
|
<?php
|
|
class SomePlugin implements \Psalm\Plugin\Hook\AfterStatementAnalysisInterface
|
|
{
|
|
}
|
|
```
|
|
|
|
`Psalm\Plugin\Hook\*` offers six interfaces that you can implement:
|
|
|
|
- `AfterStatementAnalysisInterface` - called after Psalm evaluates each statement
|
|
- `AfterExpressionAnalysisInterface` - called after Psalm evaluates each expression
|
|
- `AfterClassLikeVisitInterface` - called after Psalm crawls the parsed Abstract Syntax Tree for a class-like (class, interface, trait). Due to caching the AST is crawled the first time Psalm sees the file, and is only re-crawled if the file changes, the cache is cleared, or you're disabling cache with `--no-cache`
|
|
- `AfterClassLikeExistenceCheckInterface` - called after Psalm analyzes a reference to a class-like
|
|
- `AfterMethodCallAnalysisInterface` - called after Psalm analyzes a method call
|
|
- `AfterFunctionCallAnalysisInterface` - called after Psalm analyzes a function call
|
|
|
|
An example plugin that checks class references in strings is provided [here](https://github.com/vimeo/psalm/blob/master/examples/plugins/StringChecker.php).
|
|
|
|
To ensure your plugin runs when Psalm does, add it to your [config](Configuration):
|
|
```php
|
|
<plugins>
|
|
<plugin filename="src/plugins/SomePlugin.php" />
|
|
</plugins>
|
|
```
|
|
|
|
# Composer-based plugins
|
|
|
|
Composer-based plugins provide easier way to manage and distribute your plugins.
|
|
|
|
## Using composer-based plugins
|
|
### Discovering plugins
|
|
|
|
Plugins can be found on Packagist by `type=psalm-plugin` query: https://packagist.org/packages/list.json?type=psalm-plugin
|
|
|
|
### Installing plugins
|
|
|
|
`composer require --dev plugin-vendor/plugin-package`
|
|
|
|
### Managing known plugins
|
|
|
|
Once installed, you can use `psalm-plugin` tool to enable, disable and show available and enabled plugins.
|
|
|
|
To enable the plugin, run `psalm-plugin enable plugin-vendor/plugin-package`. To disable it, run `psalm-plugin disable plugin-vendor/plugin-package`. `psalm-plugin show` (as well as bare `psalm-plugin`) will show you the list of enabled plugins, and the list of plugins known to `psalm-plugin` (installed into your `vendor` folder)
|
|
|
|
## Authoring composer-based plugins
|
|
|
|
### Requirements
|
|
|
|
Composer-based plugin is a composer package which conforms to these requirements:
|
|
|
|
1. Its `type` field is set to `psalm-plugin`
|
|
2. It has `extra.psalm.pluginClass` subkey in its `composer.json` that reference an entry-point class that will be invoked to register the plugin into Psalm runtime.
|
|
3. Entry-point class implements `Psalm\Plugin\PluginEntryPointInterface`
|
|
|
|
### Using skeleton project
|
|
|
|
Run `composer create-project weirdan/psalm-plugin-skeleton:dev-master your-plugin-name` to quickly bootstrap a new plugin project in `your-plugin-name` folder. Make sure you adjust namespaces in `composer.json`, `Plugin.php` and `tests` folder.
|
|
|
|
### Upgrading file-based plugin to composer-based version
|
|
|
|
Create new plugin project using skeleton, then pass the class name of you file-based plugin to `registerHooksFromClass()` method of the `Psalm\Plugin\RegistrationInterface` instance that was passed into your plugin entry point's `__invoke()` method. See the [conversion example](https://github.com/vimeo/psalm/tree/master/examples/plugins/composer-based/echo-checker/).
|
|
|
|
### Registering stub files
|
|
|
|
Use `Psalm\Plugin\RegistrationInterface::addStubFile()`. See the [sample plugin] (https://github.com/weirdan/psalm-doctrine-collections/).
|
|
|
|
Stub files provide a way to override third-party type information when you cannot add Psalm's extended docblocks to the upstream source files directly.
|