Data is just functions

[mathiasverraes]

Reimplemented pair() and friends using nothing but functions. Dropped tuples for now.

• [ ] Lists are just linked pairs
• [ ] Reintroduce tuples?

[turanct]

Very nice :clap:

These are the main differences between tuples and lists as far as I know:

• tuples are fixed-length, lists are not
• a tuple can hold values of different types, the values in a list should all have the same type

Can you elaborate on "lists are just linked pairs"?

[turanct]

just a test, for lists: https://gist.github.com/turanct/e381b0bff7f29a67355c

[turanct]

Can you elaborate on "lists are just linked pairs"?

I see now... list(a, b, c) == tuple(a, tuple(b, tuple(c)))

there's one more problem. list() is a php language construct, so we can't use list(a, b, c) notation. what do you suggest?

btw: i'll be adding to this pull request :-) it's in the making

[mathiasverraes]

what do you suggest?

• [ ] lst()
• [ ] l()
• [ ] lyst()
• [ ] ιiςͳ()

[turanct]

I like l()

[turanct]

turns out that changing a datastructure is not as simple as it looks :-)

[turanct]

i'm almost there. status:

• lists are implemented as pairs
• there's a list constructor called @λ_list
• l(a, b, c) is syntactic sugar for pair(a, pair(b, pair(c, @λ_list)));
• there's a cast from array to list arrayl([a, b, c]), so that we can use ...$arguments in function definitions, and use lambdalicious functions with those arguments by casting them to a list
• i'm glad there are unit tests, refactoring is so fluent

if you want to check my progress, here: https://github.com/turanct/lambdalicious/compare/mathiasverraes:data-is-just-functions...lists-are-just-functions?expand=1

[turanct]

note to self:

• clean up islist(): replace === @λ_list in there with === l(), simplify, use lambdalicious code style
• replace arrayl() with al()? We can then also have the opposite la()
• replace func_get_args() with al(func_get_args()) so we have lambdalistjes everywhere

[turanct]

Everything is functions now! i just need to clean up some docblocks, i'll do that tonight, then i'll add to this pull request. yay! :rocket:

[turanct]

lambdalistjes are pull requsted! https://github.com/mathiasverraes/lambdalicious/pull/18

[mathiasverraes]

@turanct Please add yourself as author to composer.json