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|
import any
import expect
pub external type Map(key, value);
pub external fn new() -> Map(key, value))
= 'maps' 'new'
test new {
new()
|> size
|> expect:equal(_, 0)
}
pub external fn size(Map(_, _)) -> Int
= 'maps' 'size'
test size {
[]
|> from_list
|> size
|> expect:equal(_, 0)
[{1, 1}]
|> from_list
|> size
|> expect:equal(_, 1)
[{"", 1.0}, {"", 2.0}]
|> from_list
|> size
|> expect:equal(_, 2)
}
external fn is_key(key, Map(key, _)) -> Bool
= 'maps' 'is_key'
pub fn has_key(map, key) {
is_key(key, map)
}
test has_key {
[]
|> from_list
|> has_key(_, 1)
|> expect:false
[{1, 0}]
|> from_list
|> has_key(_, 1)
|> expect:true
[{4, 0}, {1, 0}]
|> from_list
|> has_key(_, 1)
|> expect:true
[{4, 0}, {1, 0}]
|> from_list
|> has_key(_, 0)
|> expect:false
}
pub fn from_record(record: {r}) -> Map(Atom, any:Any) {
any:unsafeCoerce(record)
}
test from_record {
map = from_record({ name = "Jane" })
map
|> size
|> expect:equal(_, 1)
map
|> expect:equal(_, from_list([{'name', "Jane"}]))
}
pub external fn to_list(Map(key, value)) -> List(Tuple(key, value))
= 'maps' 'to_list'
pub external fn from_list(List(Tuple(key, value))) -> Map(key, value)
= 'maps' 'from_list'
test from_list {
proplist = [{4, 0}, {1, 0}]
map = from_list(proplist)
map
|> size
|> expect:equal(_, 2)
map
|> to_list
|> expect:equal(_, proplist)
}
|
