vm: use SmallBlob for global data

RGB-WG · Oct 15, 2024 · 90e76b3 · 90e76b3
1 parent 942035f
commit 90e76b3
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Showing 2 changed files with 4 additions and 3 deletions.
diff --git a/src/vm/contract.rs b/src/vm/contract.rs
@@ -28,6 +28,7 @@ use std::num::NonZeroU32;
 use std::rc::Rc;
 
 use amplify::confinement;
+use amplify::confinement::SmallBlob;
 use amplify::num::u24;
 use bp::seals::txout::{CloseMethod, ExplicitSeal, VerifyError, Witness};
 use bp::{dbc, Tx, Txid};
@@ -571,7 +572,7 @@ impl GlobalOrd {
 }
 
 pub trait GlobalStateIter {
-    type Data: Borrow<State>;
+    type Data: Borrow<SmallBlob>;
     fn size(&mut self) -> u24;
     fn prev(&mut self) -> Option<(GlobalOrd, Self::Data)>;
     fn last(&mut self) -> Option<(GlobalOrd, Self::Data)>;
@@ -632,7 +633,7 @@ impl<I: GlobalStateIter> GlobalContractState<I> {
     /// Retrieves global state data located `depth` items back from the most
     /// recent global state value. Ensures that the global state ordering is
     /// consensus-based.
-    pub fn nth(&mut self, depth: u24) -> Option<impl Borrow<State> + '_> {
+    pub fn nth(&mut self, depth: u24) -> Option<impl Borrow<SmallBlob> + '_> {
         if depth >= self.iter.size() {
             return None;
         }

diff --git a/src/vm/op_contract.rs b/src/vm/op_contract.rs
@@ -289,7 +289,7 @@ impl<S: ContractStateAccess> InstructionSet for ContractOp<S> {
                 let Some(state) = global.nth(index) else {
                     fail!()
                 };
-                regs.set_s(*reg_s, Some(&state.borrow().value));
+                regs.set_s(*reg_s, Some(state.borrow()));
             }
             ContractOp::LdM(type_id, reg) => {
                 let Some(meta) = context.op_info.metadata.get(type_id) else {