WuttyiFunction
A function is a block of code which only runs when it is called. You can pass data, known as parameters, into a function.
Built-in Function
In wuttyi, +, -, *, /, %, etc are function.
User Defined Function
Syntax
(<func|def> <func_name> (<params>)
<single_expr|block>
)
(func_name <args>)
Example
lisp
(func greet (name)
(print name)
)
(greet "Mg Mg")
Output
Mg Mg
Multiple Params and Arguments
lisp
// multi params and args
(func get_fullname(first_name last_name)
(print first_name last_name)
)
(get_fullname "Aung Myat" "Moe")
Output
Aung Myat Moe
Recursive Function
wuttyi can handle multiple stack frames.
Classic Factorial Example
lisp
// factorial
(func factorial (x)
(begin
(if (= x 1)
1 // true
(begin
(* x (factorial (- x 1)))
)
)
)
)
(print (factorial 5))
Output
120
Implicit Return Value
wuttyi returns every evaluated value OOTB. So, you can use this language as rust.
Example
lisp
// Implicit Return Value
(func sayHi ()
"Hi" // return value
)
(print (sayHi))
Output
Hi
Closure
lisp
// closure
(var value 100)
(func calc (x y)
(begin
(var z (+ x y))
(func inner (foo)
(+ (+ foo z) value))
inner
)
)
(var fn (calc 10 20))
(print (fn 30))
Output
160