addressing review

Author: teh-cmc

crates/store/re_chunk/src/chunk.rs

@@ -74,7 +74,7 @@ impl ChunkComponents {
     }
 
     #[inline]
-    pub fn get_descriptor(
+    pub fn get_by_descriptor(
         &self,
         component_desc: &ComponentDescriptor,
     ) -> Option<&Arrow2ListArray<i32>> {
@@ -83,7 +83,7 @@ impl ChunkComponents {
     }
 
     #[inline]
-    pub fn get_descriptor_mut(
+    pub fn get_by_descriptor_mut(
         &mut self,
         component_desc: &ComponentDescriptor,
     ) -> Option<&mut Arrow2ListArray<i32>> {

crates/store/re_dataframe/src/query.rs

@@ -516,7 +516,7 @@ impl<E: StorageEngineLike> QueryHandle<E> {
         fn chunk_filter_recursive_only(chunk: &Chunk) -> Option<Chunk> {
             let list_array = chunk
                 .components()
-                .get_descriptor(&ClearIsRecursive::descriptor())?;
+                .get_by_descriptor(&ClearIsRecursive::descriptor())?;
 
             let values = list_array
                 .values()
@@ -1186,7 +1186,7 @@ impl<E: StorageEngineLike> QueryHandle<E> {
                                 }),
                                 ColumnDescriptor::Time(_) => None,
                             })?;
-                            unit.components().get_descriptor(&component_desc).map(|list_array| list_array.to_boxed())
+                            unit.components().get_by_descriptor(&component_desc).map(|list_array| list_array.to_boxed())
                         }
                     };
 

crates/store/re_types_core/src/component_descriptor.rs

@@ -43,6 +43,8 @@ impl std::hash::Hash for ComponentDescriptor {
         let archetype_field_name = archetype_field_name.map_or(0, |v| v.hash());
         let component_name = component_name.hash();
 
+        // NOTE: This is a NoHash type, so we must respect the invariant that `write_XX` is only
+        // called one, see <https://docs.rs/nohash-hasher/0.2.0/nohash_hasher/trait.IsEnabled.html>.
         state.write_u64(archetype_name ^ archetype_field_name ^ component_name);
     }
 }

crates/viewer/re_space_view/src/lib.rs

@@ -51,7 +51,7 @@ pub fn diff_component_filter<T: re_types_core::Component>(
         .diff
         .chunk
         .components()
-        .get_descriptor(&T::descriptor())
+        .get_by_descriptor(&T::descriptor())
         .map_or(false, |list_array| {
             list_array
                 .iter()

examples/rust/dataframe_query/src/main.rs

@@ -53,8 +53,6 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
             continue;
         }
 
-        // engine.engine.read().store().iter_chunks()
-
         let query = QueryExpression {
             filtered_index: Some(timeline),
             view_contents: Some(

examples/rust/dna/src/main.rs

@@ -7,7 +7,6 @@ use itertools::Itertools as _;
 use rerun::{
     demo_util::{bounce_lerp, color_spiral},
     external::glam,
-    ComponentBatch,
 };
 
 const NUM_POINTS: usize = 100;
@@ -18,12 +17,6 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     let (points1, colors1) = color_spiral(NUM_POINTS, 2.0, 0.02, 0.0, 0.1);
     let (points2, colors2) = color_spiral(NUM_POINTS, 2.0, 0.02, TAU * 0.5, 0.1);
 
-    rec.log_component_batches(
-        "data",
-        true,
-        [&rerun::components::Position3D::new(1.0, 2.0, 3.0) as &dyn ComponentBatch],
-    )?;
-
     rec.set_time_seconds("stable_time", 0f64);
 
     rec.log_static(