playground.rz

var breakfast = "beignets"
var beverage = "cafe au lait"
breakfast = "a " + "beignets with " + beverage

print breakfast

// Scopes
var a = 1
{
    print a    //  1
    var a = 3
    print a    //  3

    {
        a = 5
    }
    print a    //  5
}
print a        //  1


var aa = 0
{
    aa = 1
    var b = 6
    aa = b
}
print aa //  6


// Conditionals
if true { print "oui" }
if true
{

    print "oiu"}

if false { print "oui" } else { print "non" }

var if_tests = 3
if true { if_tests = 5 } else { if_tests = -8 }
print if_tests
if false { if_tests = 65 } else { if_tests = -42 }
print if_tests

var aaa = 0
if true {
    aaa = 1
    var b = 6
    aaa = b
    aaa = 8
}
print aaa

if true or true { print "oui" }
if true or false { print "oui" }
if false or true { print "oui" }
if false or false { print "non" } else { print "oui" }
if false and false { print "non" } else { print "oui" }
if true and false { print "non" } else { print "oui" }
if false and true { print "non" } else { print "oui" }
if true and true { print "oui" } else { print "non" }

if true and true or false { print "oui" } else { print "non" }
if !!false or true and false or !!true { print "oui" }

// While
var incr = 0
while incr < 5 { incr = incr + 1 }
print incr

// For
for i in 5 { print i }


// Functions
fn are_we_fn_yet() {
    print "yes we are"
}

print are_we_fn_yet

are_we_fn_yet()

// Native fnction
print clock
var start = clock()
print start
print clock() - start

// Fib
fn fib(n) {
  if n < 2 { return n }
  return fib(n - 2) + fib(n - 1)
}
var start_fib = clock()
print fib(5)
print clock() - start_fib

// Closure
{
    var a = 123
    fn print_a() { print a }
    print_a()
}

var x = "global"
fn outer() {
  var x = "outer"
  fn inner() {
    print x
  }
  inner()
}
outer() // "outer"


fn outer() {
  var x = "outside"
  fn inner() {
    print x
  }
  inner()
}
outer() // "outside"

// Closed up upvalue
fn outer() {
  var x = "outside"
  fn inner() {
    print x
  }

  return inner
}

var closure = outer()
closure() // "outside"


var globalSet
var globalGet

fn main() {
  var a = "initial"

  fn set() { a = "updated" }
  fn get() { print a }

  globalSet = set
  globalGet = get
}

main()
globalSet()
globalGet()

/// Struct
struct Brioche {}
print Brioche
print Brioche()

struct Pair {}
var pair = Pair()
pair.first = 1
pair.second = 2
print pair.first + pair.second

// Bound method
struct Scone {
    fn topping(first, second) {
        print "scone with " + first + " and " + second
    }
}

var scone = Scone()
scone.topping("berries", "cream")

// Initializer
struct CoffeeMaker {
    fn init(coffee) {
        self.coffee = coffee
    }

    fn brew() {
        print "Enjoy your cup of " + self.coffee
        self.coffee = null
    }
}

var maker = CoffeeMaker("coffee and chicory")
maker.brew()

// Invoke method in field
struct Oops {
  fn init() {
    fn f() {
      print "not a method"
    }

    self.field = f
  }
}

var oops = Oops()
oops.field()