language-servers/roc
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add Set.fromList

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Folkert 2021-02-16 00:46:02 +01:00
parent 581628f461
commit 49ca8f3e86
10 changed files with 166 additions and 35 deletions
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24
compiler/builtins/bitcode/src/dict.zig
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@ -712,6 +712,26 @@ pub fn dictDifference(dict1: RocDict, dict2: RocDict, alignment: Alignment, key_
}
}
pub fn setFromList(list: RocList, alignment: Alignment, key_width: usize, value_width: usize, hash_fn: HashFn, is_eq: EqFn, dec_key: Dec, output: *RocDict) callconv(.C) void {
output.* = RocDict.empty();
var ptr = @ptrCast([*]u8, list.bytes);
const dec_value = doNothing;
const value = null;
const size = list.length;
var i: usize = 0;
while (i < size) : (i += 1) {
const key = ptr + i * key_width;
dictInsert(output.*, alignment, key, key_width, value, value_width, hash_fn, is_eq, dec_key, dec_value, output);
}
// NOTE: decref checks for the empty case
const data_bytes = size * key_width;
decref(std.heap.c_allocator, alignment, list.bytes, data_bytes);
}
const StepperCaller = fn (?[*]u8, ?[*]u8, ?[*]u8, ?[*]u8) callconv(.C) void;
pub fn dictWalk(dict: RocDict, stepper: Opaque, stepper_caller: StepperCaller, accum: Opaque, alignment: Alignment, key_width: usize, value_width: usize, accum_width: usize, output: Opaque) callconv(.C) void {
@memcpy(output orelse unreachable, accum orelse unreachable, accum_width);
@ -740,6 +760,10 @@ fn decref(
bytes_or_null: ?[*]u8,
data_bytes: usize,
) void {
if (data_bytes == 0) {
return;
}
var bytes = bytes_or_null orelse return;
const usizes: [*]usize = @ptrCast([*]usize, @alignCast(8, bytes));