Class LaravelUi5\Core\Parameters\ParameterPipeline

The parameter pipeline — both builder and runner.

Pins exactly one first() source and one last() source; interior sources sit between. Builder methods return $this for fluent chaining. The chain is held as a flat ordered list of source class names; sources are resolved from the Laravel container on each resolve() call (so they pick up per-request dependencies like Request via constructor injection).

Per-call hot-plumbing. The pipeline is bound via bind in the service provider (fresh instance per container resolution). A consumer that mutates the chain with before() / after() does not leak that mutation to other callers within the same request.

Linearity. The chain is structurally linear by construction — before() and after() insert at a specific position relative to an existing source; duplicate registration is forbidden. Cycles are therefore impossible.

Typed output. Every value leaves resolve() in the one form its slot's declared type names ({@see SlotValueCaster}), whichever source filled it. A value without such a form is refused loudly: a 422 when the request supplied it, a reported exception when a server-side source did. It is never skipped in favour of a later source — that would answer a broken request with the default and hide the mistake.