progress

wasm/src/ids.rs

@@ -0,0 +1,17 @@
+//! Ids, which cross as strings (one id) or as concatenated 16-byte UUIDs (several).
+
+use uuid::Uuid;
+
+pub(crate) fn uuid_list(bytes: &[u8]) -> Option<Vec<Uuid>> {
+    let (chunks, rest) = bytes.as_chunks::<16>();
+    rest.is_empty()
+        .then(|| chunks.iter().map(|c| Uuid::from_bytes(*c)).collect())
+}
+
+pub(crate) fn parse_uuid(id: &str) -> Option<Uuid> {
+    Uuid::parse_str(id).ok()
+}
+
+pub(crate) fn same_len(a: &[f64], b: &[f64], c: &[f64]) -> bool {
+    a.len() == b.len() && b.len() == c.len()
+}