Merge branch 'develop' into fix/rgb-252

src/contract/assignments.rs

@@ -50,7 +50,8 @@ impl KnownState for RevealedValue {}
 impl KnownState for RevealedData {}
 impl KnownState for RevealedAttach {}
 
-#[derive(Copy, Clone, Eq, Debug)]
+#[allow(clippy::derived_hash_with_manual_eq)]
+#[derive(Copy, Clone, Eq, Hash, Debug)]
 #[derive(StrictType, StrictDumb, StrictEncode, StrictDecode)]
 #[strict_type(lib = LIB_NAME_RGB_STD)]
 #[cfg_attr(

src/interface/iface.rs

@@ -30,7 +30,8 @@ use amplify::{ByteArray, Bytes32};
 use baid64::{Baid64ParseError, DisplayBaid64, FromBaid64Str};
 use chrono::{DateTime, TimeZone, Utc};
 use commit_verify::{CommitId, CommitmentId, DigestExt, Sha256};
-use rgb::{Identity, Occurrences};
+use rgb::vm::WitnessOrd;
+use rgb::{ContractId, Identity, Occurrences, SchemaId, XWitnessId};
 use strict_encoding::{
     FieldName, StrictDecode, StrictDeserialize, StrictDumb, StrictEncode, StrictSerialize,
     StrictType, TypeName, VariantName,
@@ -355,6 +356,15 @@ pub trait IfaceWrapper<S: ContractStateRead> {
     /// Constructs information object describing a specific class in terms of
     /// the interface class.
     fn info(&self) -> Self::Info;
+
+    /// Returns contract id.
+    fn contract_id(&self) -> ContractId;
+
+    /// Returns schema id of the contract.
+    fn schema_id(&self) -> SchemaId;
+
+    /// Returns information about a witness, if it is known to the contract state.
+    fn witness_info(&self, witness_id: XWitnessId) -> Option<WitnessOrd>;
 }
 
 /// Interface definition.

src/persistence/memory.rs

@@ -1082,6 +1082,11 @@ impl<M: Borrow<MemContractState>> ContractStateRead for MemContract<M> {
     #[inline]
     fn schema_id(&self) -> SchemaId { self.unfiltered.borrow().schema_id }
 
+    #[inline]
+    fn witness_info(&self, witness_id: XWitnessId) -> Option<WitnessOrd> {
+        self.filter.get(&witness_id).copied()
+    }
+
     #[inline]
     fn rights_all(&self) -> impl Iterator<Item = &OutputAssignment<VoidState>> {
         self.unfiltered

src/persistence/state.rs

@@ -305,6 +305,7 @@ pub trait StateWriteProvider: StoreTransaction<TransactionErr = Self::Error> {
 pub trait ContractStateRead: ContractStateAccess {
     fn contract_id(&self) -> ContractId;
     fn schema_id(&self) -> SchemaId;
+    fn witness_info(&self, witness_id: XWitnessId) -> Option<WitnessOrd>;
     fn rights_all(&self) -> impl Iterator<Item = &OutputAssignment<VoidState>>;
     fn fungible_all(&self) -> impl Iterator<Item = &OutputAssignment<RevealedValue>>;
     fn data_all(&self) -> impl Iterator<Item = &OutputAssignment<RevealedData>>;