Is it possible to do chained "named" amends?

[khepin]

Right now I see I can do:

field = (elastic.Text) { analyzer = "french" } { filter = "lowercase" }

But is there a way to have those amends also be behind names so I could do:

hidden frenchAnalyzer {
  analyzer = "french"
}

hidden lowercase {
  filter = "lowercase"
}

field = (elastic.Text) (frenchAnalyzer) (lowercase)

My attempts so far seem to indicate this doesn't work but I might be missing some syntax that would enable this

[bioball]

Not exactly. You can't change the parent of an object like this.

However, Pkl has the concept of mixins, which is meant for something like this. It lets you define an amends without knowing what the parent is.

hidden frenchAnalyzer: Mixin = new {
  analyzer = "french"
}

hidden lowercase: Mixin = new {
  filter = "lowercase"
}

field = elastic.Text
  |> frenchAnalyzer
  |> lowercase

A mixin is just a function, by the way. This code:

hidden frenchAnalyzer: Mixin = new {
  analyzer = "french"
}

Is identical to this:

hidden frenchAnalyzer: Mixin = (it) -> it {
  analyzer = "french"
}

Also, the |> is the pipe operator; details here: https://pkl-lang.org/main/current/language-reference/index.html#anonymous-functions

[khepin]

Oh this is great! Thank you!