feat(rust): port lazy block matching

Move greedy, lazy, lazy2, and binary-tree block matchers into Rust. A narrow
C state projection preserves configuration-specific context layout while Rust
owns hash-chain, row-based, attached-dictionary, and external-dictionary
searches and sequence-store updates.

The component map now records the lazy family as migrated; the optimized
matcher and high-level contexts remain outside this commit.

Test Plan:
- cargo test --all-targets
- cargo test --target i686-unknown-linux-gnu --all-targets
- cargo clippy && cargo clippy --benches && cargo clippy --tests
- cargo +nightly fmt
- make -B -C tests -j2 fuzzer zstreamtest invalidDictionaries poolTests
- ./tests/fuzzer -s5346 -i1 --no-big-tests
- ./tests/zstreamtest -i3000 -s334462
- ./tests/invalidDictionaries
- timeout 20s stdbuf -oL ./tests/poolTests

Refs: rust/README.md

This commit is contained in:

ddidderr

2026-07-11 08:06:30 +02:00

parent f9adcf6aef

commit 7f16a07375

4 changed files with 2828 additions and 2147 deletions

									
										rust/src/lib.rs
									
		+2
		
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				@@ -36,4 +36,6 @@ pub mod zstd_double_fast;

				#[cfg(feature = "compression")]

				pub mod zstd_fast;

				#[cfg(feature = "compression")]

				pub mod zstd_lazy;

				#[cfg(feature = "compression")]

				pub mod zstd_presplit;