feat(format): a filter registry — filters are looked up by ID · d16544b928 - clawhdf5

feat(format): a filter registry — filters are looked up by ID

decompress_chunk_masked and compress_chunk matched on the filter ID. They
now look the ID up in filter_registry: a static table of the built-in
filters compiled into this build (a filter whose cargo feature is off is
simply absent), then the codecs an application registered at run time with
register_filter (a FilterCodec, or a plain decoding closure). Registered
codecs cannot shadow a built-in one, and their output is held to the same
per-stage bound as the built-in decoders. An ID in neither tier still fails
with UnsupportedFilter(id).

The "feature off" stub functions that returned UnsupportedFilter are gone:
the table leaves those filters out instead.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

This commit is contained in:

osobh

2026-09-25 23:56:37 -05:00

co-authored by

Claude Opus 5.5

parent bb78d70b99

commit d16544b928

4 changed files with 464 additions and 82 deletions

									
										crates/clawhdf5-format/src/lib.rs
									
		+1
		
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				@@ -71,6 +71,7 @@ pub mod extensible_array;

				pub mod file_writer;

				pub mod fill_value;

				pub mod filter_pipeline;

				pub mod filter_registry;

				pub mod filters;

				mod filters_szip;

				pub mod fixed_array;