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-rw-r--r--common/object/src/path.rs38
1 files changed, 38 insertions, 0 deletions
diff --git a/common/object/src/path.rs b/common/object/src/path.rs
new file mode 100644
index 0000000..7db8798
--- /dev/null
+++ b/common/object/src/path.rs
@@ -0,0 +1,38 @@
+/*
+ This file is part of jellything (https://codeberg.org/metamuffin/jellything)
+ which is licensed under the GNU Affero General Public License (version 3); see /COPYING.
+ Copyright (C) 2026 metamuffin <metamuffin.org>
+*/
+
+use crate::{Object, Tag, TypedTag};
+use std::marker::PhantomData;
+
+#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
+pub struct Path(pub Vec<Tag>);
+
+impl Path {
+ pub fn get_matching_value<'a>(&self, ob: Object<'a>) -> Option<&'a [u8]> {
+ fn recurse<'a>(ob: Object<'a>, path: &[Tag]) -> Option<&'a [u8]> {
+ if path.len() > 1 {
+ recurse(ob.get(TypedTag(path[0], PhantomData))?, path)
+ } else {
+ ob.get(TypedTag(path[0], PhantomData))
+ }
+ }
+ recurse(ob, &self.0)
+ }
+ pub fn get_matching_values<'a>(&self, ob: Object<'a>) -> Vec<&'a [u8]> {
+ fn recurse<'a>(ob: Object<'a>, out: &mut Vec<&'a [u8]>, path: &[Tag]) {
+ if path.len() > 1 {
+ for nested in ob.iter(TypedTag(path[0], PhantomData::<Object>)) {
+ recurse(nested, out, &path[1..]);
+ }
+ } else {
+ out.extend(ob.iter(TypedTag(path[0], PhantomData::<&[u8]>)));
+ }
+ }
+ let mut out = Vec::new();
+ recurse(ob, &mut out, &self.0);
+ out
+ }
+}