Expose more types from CMT (#3875)

* Expose other types from CMT to allow usage on the client side while deserializing accounts.

* adds a convenient creation slot getter

Author: austbot

account-compression/Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "spl-account-compression"
-version = "0.1.4"
+version = "0.1.5"
 description = "Solana Program Library Account Compression Program"
 authors = ["Solana Maintainers <[email protected]>"]
 repository = "https://github.com/solana-labs/solana-program-library"

account-compression/programs/account-compression/Cargo.toml

@@ -108,6 +108,12 @@ impl ConcurrentMerkleTreeHeader {
         }
     }
 
+    pub fn get_creation_slot(&self) -> u64 {
+        match &self.header {
+            ConcurrentMerkleTreeHeaderData::V1(header) => header.creation_slot,
+        }
+    }
+
     pub fn set_new_authority(&mut self, new_authority: &Pubkey) {
         match self.header {
             ConcurrentMerkleTreeHeaderData::V1(ref mut header) => {

account-compression/programs/account-compression/src/state/concurrent_merkle_tree_header.rs

@@ -2,7 +2,5 @@
 mod concurrent_merkle_tree_header;
 mod path_node;
 
-pub use concurrent_merkle_tree_header::{
-    ConcurrentMerkleTreeHeader, CONCURRENT_MERKLE_TREE_HEADER_SIZE_V1,
-};
+pub use concurrent_merkle_tree_header::*;
 pub use path_node::PathNode;