blob: cf2284b29506260ac806afa590762d950aeffa93 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
# example program: compute the factorial of 5
def main [
local-scope
x:num <- factorial 5
$print [result: ], x, [
]
]
def factorial n:num -> result:num [
local-scope
load-inputs
{
# if n=0 return 1
zero?:bool <- equal n, 0
break-unless zero?
return 1
}
# return n * factorial(n-1)
x:num <- subtract n, 1
subresult:num <- factorial x
result <- multiply subresult, n
]
# unit test
scenario factorial-test [
run [
1:num <- factorial 5
]
memory-should-contain [
1 <- 120
]
]
|