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module: cleanup Objects.updated() implementation; add anyUpdated() variant

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2024-12-24 23:04:27 -07:00
parent df3091bfd5
commit 1b7398f580
1 changed files with 26 additions and 12 deletions
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26
src/module.zig
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@ -303,19 +303,33 @@ pub fn Objects(options: ObjectsOptions, comptime T: type) type {
return unpacked;
}
/// If options have tracking enabled, this returns true when the given field has been set using the set()
/// or setAll() methods. A subsequent call to .updated() will return false until another set() or setAll()
/// call is made.
/// If options have tracking enabled, this returns true when the given field has been set
/// using the set() or setAll() methods. A subsequent call to .updated() or .anyUpdated()
/// will return false until another set() or setAll() call is made.
pub fn updated(objs: *@This(), id: ObjectID, field_name: anytype) bool {
if (options.track_fields) {
if (!options.track_fields) return false;
const unpacked = objs.validateAndUnpack(id, "updated");
if (std.meta.fieldIndex(T, @tagName(field_name))) |field_index| {
if (objs.internal.updated) |*updated_fields| {
const field_index = std.meta.fieldIndex(T, @tagName(field_name)).?;
const updated_fields = &(objs.internal.updated orelse return false);
const updated_index = unpacked.index * @typeInfo(T).@"struct".fields.len + field_index;
const updated_value = updated_fields.isSet(updated_index);
updated_fields.unset(updated_index);
return updated_value;
}
/// If options have tracking enabled, this returns true when any field has been set using
/// the set() or setAll() methods. A subsequent call to .updated() or .anyUpdated() will
/// return false until another set() or setAll() call is made.
pub fn anyUpdated(objs: *@This(), id: ObjectID) bool {
if (!options.track_fields) return false;
const unpacked = objs.validateAndUnpack(id, "updated");
const updated_fields = &(objs.internal.updated orelse return false);
inline for (0..@typeInfo(T).@"struct".fields.len) |field_index| {
const updated_index = unpacked.index * @typeInfo(T).@"struct".fields.len + field_index;
const updated_value = updated_fields.isSet(updated_index);
if (updated_value) {
updated_fields.unset(updated_index);
return true;
}
}
return false;