Add reduce/fold Expression

[miberss]

Problem

This adds the first class function 'reduce/fold' as an expression applies an operation to accumulate list elements into a single result, and add reduced value to access the value within reduce expressions

Solution

ExprReduce was made similarly to ExprFilter and ExprTransform, except I did not use any of the smart flatMap and Stream usage because I wouldn't know how to do that.

ExprReducedValue was made similarly to ExprInput without type support I guess. I mainly went off of intuition

Testing Completed

src/test/skript/tests/syntaxes/expressions/ExprReduce.sk

Supporting Information

none

---

Completes: none
Related: none
AI assistance: Google search AI overview once or twice (?) I also previously used AI when I was younger to learn Java.

[sovdeeth]

looking great
just some minor stuff

[sovdeeth]

some minor tweaks, otherwise looks great!

[sovdeeth]

looks great
i'll handle the registration api stuff in a later pr that updates all the stream-like syntax (filter/map/sort)

[APickledWalrus]

Great work so far, I love this idea!

[Absolutionism]

Should be moved to the org.skriptlang.skript.bukkit.misc package.
Should also be using SyntaxRegistry as Skript.registerExpression is deprecated

[sovdeeth]

Should be moved to the org.skriptlang.skript.bukkit.misc package.
Should also be using SyntaxRegistry as Skript.registerExpression is deprecated

See

looks great
i'll handle the registration api stuff in a later pr that updates all the stream-like syntax (filter/map/sort)

(It also isn't a bukkit syntax)

[Absolutionism]

I apologize, I suffer from “I didn’t see that and I’m dumb” syndrome

[APickledWalrus]

Just about ready. Great work so far!