fib.po
compiles to fib.js
// signature: (Num -> Num)
export function fib(n) {
return (
_lte_(n)(1.0) ? 1.0 : _plus_(fib(_minus_(n)(1.0)))(fib(_minus_(n)(2.0)))
);
}compiles to fib.py
# signature: (Num -> Num)
def fib(n):
return (1.0 if _lte_(n)(1.0) else _plus_(fib(_minus_(n)(1.0)))(fib(_minus_(n)(2.0))))compiles to fib.lua
-- signature: (Num -> Num)
function fib(n)
return (_lte_(n)(1.0) > 0 and 1.0 or _plus_(fib(_minus_(n)(1.0)))(fib(_minus_(n)(2.0))))
endfizzbuzz.po
Deno 1.22.0
exit using ctrl+d or close()
> fizzbuzz(20)
[
1, 2, -1, 4, -2, -1, 7,
8, -1, -2, 11, -1, 13, 14,
-3, 16, 17, -1, 19, -2
]
I wrote the compiler for Portcullis purely for my own education and amusement. Painfully specific goals guided the development of this project and account for both the language features I chose to include as well as omit.
Some of these goals include
- minimalism
- purity
- parametric polymorphism