Comments
// This is a comment
/* This is a comment
on multiple lines */
Numbers
12
12e5
12.f
12f
12d
12.d
12.0
12.0f
12.0d
strings and language extensions
"hi"
'hi'
'c'
'what "yach"'
s'c'
"c"
r"[a-z|A-Z]+"
Functions
def add(a int, b int) => a + b
Language Extensions
dcalc = mylisp||(+ 1 2 (* 2 3))|| // == 9
myFortran || program hello
print *, "Hello World!"
end program hello|| //prints "Hello World!"
lotto = myAPL || x[⍋x←6?40] || //6 unique random numbers from 1 to 40
Full example
//an overloaded function
def adder(a int, b int) => a + b
def adder(a int, b float) => adder(a, b as int)
def adder(a int) => adder(a, 10)
//a default value
def powerPlus(a int, raiseTo = 2, c int) => a ** raiseTo + c
//call our function with a default value
res1 = powerPlus(4, 10)//second argument defaults to '2'
res2 = powerPlus(4, 3, 10)//second argument provided
//calling a function with named parameters:
def powerAdder(a int, raiseATo = 2, b int, raiseBTo = 2) => a**raiseATo + b**raiseBTo
res3 = powerAdder(2, 4, raiseATo=3)//equivalent to: powerAdder(2, 3, 4, 2)
//varargs:
def sum(elms int...) int {
res = 0
for(elm in elms){
res += elm
}
res
}
//call our function with a vararg
thesum = sum(1, 2, 3, 4, 5)
//partially defined typedef
typedef NameMap<X> = java.util.ArrayList<java.util.HashMap<String, java.util.HashSet<X>>>
//using typedefs...
nm NameMap<String>= new NameMap<String>()
@Annotation
class MyClass(a int, b int, c String){
override toString() => 'MyClass({a}, {b}, "{c}")'
}
mc1 = MyClass(12, 14, "hi there")
mc2 = mc1@ //copy mc1
assert mc1 == mc2//same values!
assert mc1 &<> mc2//different objects!
mc3 = mc1@(a = 100)//copy mc1 but overwrite value of a
assert 'MyClass(100, 14, "hi there")' == mc3.toString()
mc4 = mc1@(<a, b>)//copy mc1 but exclude a and b
assert 'MyClass(0, 0, "hi there")' == mc3.toString()