Laravel Classes That Support Macros

The following table will list every framework class that implements the __call method directly. The table will also indicate if the class supports macros even though it implements __call. Please note that the following table does not take into account classes that implement the __callSatic method (such as the Illuminate\Support\Facades\Facade class).

Class	Macroable?
Illuminate\Foundation\Support \Providers\RouteServiceProvider	No
Illuminate\Support\ViewErrorBag	No
Illuminate\Redis\Database	No
Illuminate\Support\Manager	No
Illuminate\Support\Fluent	No
Illuminate\Cache\Repository	Yes
Illuminate\Broadcasting \BroadcastManager	No
Illuminate\Filesystem \FilesystemManager	No
Illuminate\Http\RedirectResponse	No
Illuminate\Queue\Capsule\Manager	No
Illuminate\Routing\Controller	No
Illuminate\Support \ServiceProvider	No
Illuminate\Queue\QueueManager	No
Illuminate\Pagination \AbstractPaginator	No
Illuminate\Filesystem \FilesystemAdapter	No
Illuminate\Cache\CacheManager	No
Illuminate\Database \DatabaseManager	No
Illuminate\Database \Eloquent\Relations\Relation	No
Illuminate\Mail\Message	No
Illuminate\View\View	No
Illuminate\Database\Eloquent \Builder	Yes See "Notes on Eloquent Builder"
Illuminate\Validation\Validator	No
Illuminate\Database\Query \Builder	No
Illuminate\Database\Eloquent \Model	No

#Notes on Eloquent Builder

Even though the Illuminate\Database\Eloquent\Builder class supports macros, it does not use the Macroable trait. The Builder class exposes the following public methods for interacting with macros:

macro($name, Closure $callback)

: Adds a new macro to the Builder with the given $name and $callback.

getMacro($name)

: Returns the $callback (see macro($name Closure $callback) method) registered to the macro with the given $name.

The Builder class handles determining if macros exist internally and does not expose any public API for determining if a macro exists. This does not mean, however, that it cannot be determined if a macro exists for the Builder. Because the getMacro internally makes a call to the array_get helper function without specifying a value for $default, the getMacro function will return null if no matching macro is found.

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