✨ Add set_children granular methods for performance

frontend/src/app/render_wasm/api.cljs

@@ -155,18 +155,72 @@
 (defn set-shape-children
   [children]
   (perf/begin-measure "set-shape-children")
-  (when-not ^boolean (empty? children)
+  (case (count children)
+    0
+    (h/call wasm/internal-module "_set_children_0")
+
+    1
+    (let [[c1] children
+          c1 (uuid/get-u32 c1)]
+      (h/call wasm/internal-module "_set_children_1"
+              (aget c1 0) (aget c1 1) (aget c1 2) (aget c1 3)))
+
+    2
+    (let [[c1 c2] children
+          c1 (uuid/get-u32 c1)
+          c2 (uuid/get-u32 c2)]
+      (h/call wasm/internal-module "_set_children_2"
+              (aget c1 0) (aget c1 1) (aget c1 2) (aget c1 3)
+              (aget c2 0) (aget c2 1) (aget c2 2) (aget c2 3)))
+
+    3
+    (let [[c1 c2 c3] children
+          c1 (uuid/get-u32 c1)
+          c2 (uuid/get-u32 c2)
+          c3 (uuid/get-u32 c3)]
+      (h/call wasm/internal-module "_set_children_3"
+              (aget c1 0) (aget c1 1) (aget c1 2) (aget c1 3)
+              (aget c2 0) (aget c2 1) (aget c2 2) (aget c2 3)
+              (aget c3 0) (aget c3 1) (aget c3 2) (aget c3 3)))
+
+    4
+    (let [[c1 c2 c3 c4] children
+          c1 (uuid/get-u32 c1)
+          c2 (uuid/get-u32 c2)
+          c3 (uuid/get-u32 c3)
+          c4 (uuid/get-u32 c4)]
+      (h/call wasm/internal-module "_set_children_4"
+              (aget c1 0) (aget c1 1) (aget c1 2) (aget c1 3)
+              (aget c2 0) (aget c2 1) (aget c2 2) (aget c2 3)
+              (aget c3 0) (aget c3 1) (aget c3 2) (aget c3 3)
+              (aget c4 0) (aget c4 1) (aget c4 2) (aget c4 3)))
+
+    5
+    (let [[c1 c2 c3 c4 c5] children
+          c1 (uuid/get-u32 c1)
+          c2 (uuid/get-u32 c2)
+          c3 (uuid/get-u32 c3)
+          c4 (uuid/get-u32 c4)
+          c5 (uuid/get-u32 c5)]
+      (h/call wasm/internal-module "_set_children_5"
+              (aget c1 0) (aget c1 1) (aget c1 2) (aget c1 3)
+              (aget c2 0) (aget c2 1) (aget c2 2) (aget c2 3)
+              (aget c3 0) (aget c3 1) (aget c3 2) (aget c3 3)
+              (aget c4 0) (aget c4 1) (aget c4 2) (aget c4 3)
+              (aget c5 0) (aget c5 1) (aget c5 2) (aget c5 3)))
+
+    ;; Dynamic call for children > 5
     (let [heap   (mem/get-heap-u32)
           size   (mem/get-alloc-size children UUID-U8-SIZE)
           offset (mem/alloc->offset-32 size)]
-      (reduce (fn [offset id]
+      (reduce
+       (fn [offset id]
          (mem.h32/write-uuid offset heap id))
        offset
-              children)))
-
-  (let [result (h/call wasm/internal-module "_set_children")]
+       children)
+      (h/call wasm/internal-module "_set_children")))
   (perf/end-measure "set-shape-children")
-    result))
+  nil)
 
 (defn- get-string-length
   [string]

render-wasm/src/main.rs

@@ -287,15 +287,7 @@ pub extern "C" fn add_shape_child(a: u32, b: u32, c: u32, d: u32) {
     });
 }
 
-#[no_mangle]
-pub extern "C" fn set_children() {
-    let bytes = mem::bytes_or_empty();
-
-    let entries: IndexSet<Uuid> = bytes
-        .chunks(size_of::<<Uuid as SerializableResult>::BytesType>())
-        .map(|data| Uuid::from_bytes(data.try_into().unwrap()))
-        .collect();
-
+fn set_children_set(entries: IndexSet<Uuid>) {
     let mut deleted = IndexSet::new();
 
     with_current_shape_mut!(state, |shape: &mut Shape| {
@@ -308,6 +300,132 @@ pub extern "C" fn set_children() {
             state.delete_shape(id);
         }
     });
+}
+
+#[no_mangle]
+pub extern "C" fn set_children_0() {
+    let entries = IndexSet::from_iter(vec![]);
+    set_children_set(entries);
+}
+
+#[no_mangle]
+pub extern "C" fn set_children_1(a1: u32, b1: u32, c1: u32, d1: u32) {
+    let entries = IndexSet::from_iter(vec![uuid_from_u32_quartet(a1, b1, c1, d1)]);
+    set_children_set(entries);
+}
+
+#[no_mangle]
+pub extern "C" fn set_children_2(
+    a1: u32,
+    b1: u32,
+    c1: u32,
+    d1: u32,
+    a2: u32,
+    b2: u32,
+    c2: u32,
+    d2: u32,
+) {
+    let entries = IndexSet::from_iter(vec![
+        uuid_from_u32_quartet(a1, b1, c1, d1),
+        uuid_from_u32_quartet(a2, b2, c2, d2),
+    ]);
+    set_children_set(entries);
+}
+
+#[no_mangle]
+pub extern "C" fn set_children_3(
+    a1: u32,
+    b1: u32,
+    c1: u32,
+    d1: u32,
+    a2: u32,
+    b2: u32,
+    c2: u32,
+    d2: u32,
+    a3: u32,
+    b3: u32,
+    c3: u32,
+    d3: u32,
+) {
+    let entries = IndexSet::from_iter(vec![
+        uuid_from_u32_quartet(a1, b1, c1, d1),
+        uuid_from_u32_quartet(a2, b2, c2, d2),
+        uuid_from_u32_quartet(a3, b3, c3, d3),
+    ]);
+    set_children_set(entries);
+}
+
+#[no_mangle]
+pub extern "C" fn set_children_4(
+    a1: u32,
+    b1: u32,
+    c1: u32,
+    d1: u32,
+    a2: u32,
+    b2: u32,
+    c2: u32,
+    d2: u32,
+    a3: u32,
+    b3: u32,
+    c3: u32,
+    d3: u32,
+    a4: u32,
+    b4: u32,
+    c4: u32,
+    d4: u32,
+) {
+    let entries = IndexSet::from_iter(vec![
+        uuid_from_u32_quartet(a1, b1, c1, d1),
+        uuid_from_u32_quartet(a2, b2, c2, d2),
+        uuid_from_u32_quartet(a3, b3, c3, d3),
+        uuid_from_u32_quartet(a4, b4, c4, d4),
+    ]);
+    set_children_set(entries);
+}
+
+#[no_mangle]
+pub extern "C" fn set_children_5(
+    a1: u32,
+    b1: u32,
+    c1: u32,
+    d1: u32,
+    a2: u32,
+    b2: u32,
+    c2: u32,
+    d2: u32,
+    a3: u32,
+    b3: u32,
+    c3: u32,
+    d3: u32,
+    a4: u32,
+    b4: u32,
+    c4: u32,
+    d4: u32,
+    a5: u32,
+    b5: u32,
+    c5: u32,
+    d5: u32,
+) {
+    let entries = IndexSet::from_iter(vec![
+        uuid_from_u32_quartet(a1, b1, c1, d1),
+        uuid_from_u32_quartet(a2, b2, c2, d2),
+        uuid_from_u32_quartet(a3, b3, c3, d3),
+        uuid_from_u32_quartet(a4, b4, c4, d4),
+        uuid_from_u32_quartet(a5, b5, c5, d5),
+    ]);
+    set_children_set(entries);
+}
+
+#[no_mangle]
+pub extern "C" fn set_children() {
+    let bytes = mem::bytes_or_empty();
+
+    let entries: IndexSet<Uuid> = bytes
+        .chunks(size_of::<<Uuid as SerializableResult>::BytesType>())
+        .map(|data| Uuid::from_bytes(data.try_into().unwrap()))
+        .collect();
+
+    set_children_set(entries);
 
     if !bytes.is_empty() {
         mem::free_bytes();