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# example program: maintain multiple counters with isolated lexical scopes
# (spaces)
recipe new-counter [
default-space:address:array:location <- new location:type, 30:literal
n:number <- next-ingredient
reply default-space:address:array:location
]
recipe increment-counter [
default-space:address:array:location <- new location:type, 30:literal
0:address:array:location/names:new-counter <- next-ingredient # setup outer space; it *must* come from 'new-counter'
x:number <- next-ingredient
n:number/space:1 <- add n:number/space:1, x:number
reply n:number/space:1
]
recipe main [
default-space:address:array:location <- new location:type, 30:literal
# counter A
a:address:array:location <- new-counter 34:literal
# counter B
b:address:array:location <- new-counter 23:literal
# increment both by 2 but in different ways
increment-counter a:address:array:location, 1:literal
b-value:number <- increment-counter b:address:array:location, 2:literal
a-value:number <- increment-counter a:address:array:location, 1:literal
# check results
$print [Contents of counters
]
# trailing space in next line is to help with syntax highlighting
$print [a: ], a-value:number, [ b: ], b-value:number, [
]
]
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