print 5+2

for i in [0..5[ do
print i
end

do
var sum = 0
for i in [0..50[ do
sum += i
end
print sum
end

class A
fun foo do
print "hello"
end
end
(new A).foo

class
end
class A
end
redef class A
redef fun foo do print "Bye"
end
(new A).foo

foo
fun foo do
print "I'm sys"
end
foo

redef class Sys
var my_int: Int is writable
end
my_int = 5
print my_int

print([0..10[.to_a.to_json)
import json
print([0..10[.to_a.to_json)

%$^&

fun foo_abstract is abstract
fun foo_intern is intern
class B
var a: B is noautoinit
fun foo do print "B"
end
fun nil: nullable B do return null

abort
nil.foo
foo_abstract
assert false
(new A).as(B).foo
print((new B).a)
foo_intern

print "Finished"