0.1.0-pre.005

kb-lib/src/decoder/spl/memo.rs

@@ -1,10 +1,30 @@
 // file: kb-lib/src/decoder/spl/memo.rs
-// version: 1
+// version: 2
 
-//! Migration boundary for legacy crate `kb_decoder_spl_memo`.
+//! Exact SPL Memo v1, v3 and v4 decoder component.
 
-/// Legacy crate name retained for migration and compatibility tracking.
-pub const LEGACY_CRATE: &str = "kb_decoder_spl_memo";
+mod constants;
+mod decoder;
+mod payload;
 
-/// Current porting status.
-pub const MIGRATION_STATUS: &str = "source-preserved-pending-port";
+/// Maximum payload prefix retained for bounded diagnostics.
+pub(crate) use self::constants::SPL_MEMO_DIAGNOSTIC_PREFIX_BYTES;
+/// Current stable Memo decoded event contract version.
+pub(crate) use self::constants::SPL_MEMO_EVENT_VERSION;
+/// Maximum decoded instruction data retained as a complete Memo payload.
+pub(crate) use self::constants::SPL_MEMO_MAX_PAYLOAD_BYTES;
+/// Stable protocol code shared by Memo generations.
+pub(crate) use self::constants::SPL_MEMO_PROTOCOL_CODE;
+/// Canonical tracing target for the SPL Memo decoder.
+pub(crate) use self::constants::SPL_MEMO_TRACING_TARGET;
+/// Stable Memo v1 surface code.
+pub(crate) use self::constants::SPL_MEMO_V1_SURFACE_CODE;
+/// Stable Memo v3 surface code.
+pub(crate) use self::constants::SPL_MEMO_V3_SURFACE_CODE;
+/// Stable Memo v4 surface code.
+pub(crate) use self::constants::SPL_MEMO_V4_SURFACE_CODE;
+/// Decodes one bounded SPL Memo instruction.
+pub(crate) use self::payload::decode as spl_memo_decode;
+
+/// Exact decoder for the three registered SPL Memo generations.
+pub use self::decoder::SplMemoDecoder;