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Dict.get

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Folkert 2021-02-13 16:12:45 +01:00
parent cba729a933
commit ac5eb0f6f6
10 changed files with 296 additions and 2 deletions
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18
compiler/builtins/bitcode/src/dict.zig
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@ -472,6 +472,24 @@ pub fn dictContains(dict: RocDict, alignment: Alignment, key: Opaque, key_width:
}
}
// Dict.get : Dict k v, k -> { flag: bool, value: Opaque }
pub fn dictGet(dict: RocDict, alignment: Alignment, key: Opaque, key_width: usize, value_width: usize, hash_fn: HashFn, is_eq: EqFn, inc_value: Inc) callconv(.C) extern struct { value: Opaque, flag: bool } {
const capacity: usize = dict.dict_slot_len;
const n: usize = capacity;
const seed: u64 = 0;
switch (dict.findIndex(capacity, seed, alignment, key, key_width, value_width, hash_fn, is_eq)) {
MaybeIndex.not_found => {
return .{ .flag = false, .value = null };
},
MaybeIndex.index => |index| {
var value = dict.getValue(n, index, alignment, key_width, value_width);
inc_value(value);
return .{ .flag = true, .value = value };
},
}
}
test "RocDict.init() contains nothing" {
const key_size = @sizeOf(usize);
const value_size = @sizeOf(usize);