feat!: automatic NoteInterface and NoteGetterOptions auto select

docs/docs/developers/contracts/references/storage/private_state.md

@@ -254,11 +254,11 @@ You can view the implementation [here](https://github.com/AztecProtocol/aztec-pa
 
 ### `selects: BoundedVec<Option<Select>, N>`
 
-`selects` is a collection of filtering criteria, specified by `Select { field_index: u8, value: Field, comparator: u3 }` structs. It instructs the data oracle to find notes whose (`field_index`)th field matches the provided `value`, according to the `comparator`.
+`selects` is a collection of filtering criteria, specified by `Select { property_selector: PropertySelector, value: Field, comparator: u3 }` structs. It instructs the data oracle to find notes whose serialized field (as specified by the PropertySelector) matches the provided `value`, according to the `comparator`. The PropertySelector is in turn specified as having an `index` (nth position of the selected field in the serialized note), an `offset` (byte offset inside the selected serialized field) and `length` (bytes to read of the field from the offset)
 
 ### `sorts: BoundedVec<Option<Sort>, N>`
 
-`sorts` is a set of sorting instructions defined by `Sort { field_index: u8, order: u2 }` structs. This directs the data oracle to sort the matching notes based on the value of the specified field index and in the indicated order. The value of order is **1** for _DESCENDING_ and **2** for _ASCENDING_.
+`sorts` is a set of sorting instructions defined by `Sort { property_selector: PropertySelector, order: u2 }` structs. This directs the data oracle to sort the matching notes based on the value of the specified PropertySelector and in the indicated order. The value of order is **1** for _DESCENDING_ and **2** for _ASCENDING_.
 
 ### `limit: u32`
 

docs/docs/misc/migration_notes.md

@@ -6,6 +6,159 @@ keywords: [sandbox, cli, aztec, notes, migration, updating, upgrading]
 
 Aztec is in full-speed development. Literally every version breaks compatibility with the previous ones. This page attempts to target errors and difficulties you might encounter when upgrading, and how to resolve them.
 
+## 0.28.0
+
+### Automatic NoteInterface implementation and selector changes
+
+Implementing a note required a fair amount of boilerplate code, which has been substituted by the `#[aztec(note)]` attribute. 
+
+Before:
+
+```rust
+struct AddressNote {
+    address: AztecAddress,
+    owner: AztecAddress,
+    randomness: Field,
+    header: NoteHeader
+}
+
+impl NoteInterface<ADDRESS_NOTE_LEN>  for AddressNote {
+    fn serialize_content(self) -> [Field; ADDRESS_NOTE_LEN]{
+        [self.address.to_field(), self.owner.to_field(), self.randomness]
+    }
+
+    fn deserialize_content(serialized_note: [Field; ADDRESS_NOTE_LEN]) -> Self {
+        AddressNote {
+            address: AztecAddress::from_field(serialized_note[0]),
+            owner: AztecAddress::from_field(serialized_note[1]),
+            randomness: serialized_note[2],
+            header: NoteHeader::empty(),
+        }
+    }
+
+    fn compute_note_content_hash(self) -> Field {
+        pedersen_hash(self.serialize_content(), 0)
+    }
+
+    fn compute_nullifier(self, context: &mut PrivateContext) -> Field {
+        let note_hash_for_nullify = compute_note_hash_for_consumption(self);
+        let secret = context.request_nullifier_secret_key(self.owner);
+        pedersen_hash([
+            note_hash_for_nullify,
+            secret.low,
+            secret.high,
+        ],0)
+    }
+
+    fn compute_nullifier_without_context(self) -> Field {
+        let note_hash_for_nullify = compute_note_hash_for_consumption(self);
+        let secret = get_nullifier_secret_key(self.owner);
+        pedersen_hash([
+            note_hash_for_nullify,
+            secret.low,
+            secret.high,
+        ],0)
+    }
+
+    fn set_header(&mut self, header: NoteHeader) {
+        self.header = header;
+    }
+
+    fn get_header(note: Self) -> NoteHeader {
+        note.header
+    }
+
+    fn broadcast(self, context: &mut PrivateContext, slot: Field) {
+        let encryption_pub_key = get_public_key(self.owner);
+        emit_encrypted_log(
+            context,
+            (*context).this_address(),
+            slot,
+            Self::get_note_type_id(),
+            encryption_pub_key,
+            self.serialize_content(),
+        );
+    }
+
+    fn get_note_type_id() -> Field {
+        6510010011410111511578111116101
+    }
+}
+
+```
+
+After:
+
+```rust
+#[aztec(note)]
+struct AddressNote {
+    address: AztecAddress,
+    owner: AztecAddress,
+    randomness: Field,
+}
+
+impl NoteInterface<ADDRESS_NOTE_LEN>  for AddressNote {
+    fn compute_nullifier(self, context: &mut PrivateContext) -> Field {
+        let note_hash_for_nullify = compute_note_hash_for_consumption(self);
+        let secret = context.request_nullifier_secret_key(self.owner);
+        // TODO(#1205) Should use a non-zero generator index.
+        pedersen_hash([
+            note_hash_for_nullify,
+            secret.low,
+            secret.high,
+        ],0)
+    }
+
+    fn compute_nullifier_without_context(self) -> Field {
+        let note_hash_for_nullify = compute_note_hash_for_consumption(self);
+        let secret = get_nullifier_secret_key(self.owner);
+        pedersen_hash([
+            note_hash_for_nullify,
+            secret.low,
+            secret.high,
+        ],0)
+    }
+
+    fn broadcast(self, context: &mut PrivateContext, slot: Field) {
+        let encryption_pub_key = get_public_key(self.owner);
+        emit_encrypted_log(
+            context,
+            (*context).this_address(),
+            slot,
+            Self::get_note_type_id(),
+            encryption_pub_key,
+            self.serialize_content(),
+        );
+    }
+}
+```
+
+Automatic note (de)serialization implementation also means it is now easier to filter notes using `NoteGetterOptions.select` via the `::properties()` helper:
+
+Before: 
+
+```rust
+let options = NoteGetterOptions::new().select(0, amount, Option::none()).select(1, owner.to_field(), Option::none()).set_limit(1);
+```
+
+After:
+
+```rust
+let options = NoteGetterOptions::new().select(ValueNote::properties().value, amount, Option::none()).select(ValueNote::properties().owner, owner.to_field(), Option::none()).set_limit(1);
+```
+
+The helper returns a metadata struct that looks like this (if autogenerated)
+
+```rust
+ValueNoteProperties {
+    value: PropertySelector { index: 0, offset: 0, length: 32 },
+    owner: PropertySelector { index: 1, offset: 0, length: 32 },
+    randomness: PropertySelector { index: 2, offset: 0, length: 32 },
+}
+```
+
+It can also be used for the `.sort` method.
+
 ## 0.27.0
 
 ### `initializer` macro replaces `constructor`

noir-projects/aztec-nr/address-note/src/address_note.nr

@@ -12,31 +12,14 @@ global ADDRESS_NOTE_LEN: Field = 3;
 
 // docs:start:address_note_def
 // Stores an address
+#[aztec(note)]
 struct AddressNote {
     address: AztecAddress,
     owner: AztecAddress,
     randomness: Field,
-    header: NoteHeader,
 }
 
 impl NoteInterface<ADDRESS_NOTE_LEN>  for AddressNote {
-    fn serialize_content(self) -> [Field; ADDRESS_NOTE_LEN]{
-        [self.address.to_field(), self.owner.to_field(), self.randomness]
-    }
-
-    fn deserialize_content(serialized_note: [Field; ADDRESS_NOTE_LEN]) -> Self {
-        AddressNote {
-            address: AztecAddress::from_field(serialized_note[0]),
-            owner: AztecAddress::from_field(serialized_note[1]),
-            randomness: serialized_note[2],
-            header: NoteHeader::empty(),
-        }
-    }
-
-    fn compute_note_content_hash(self) -> Field {
-        // TODO(#1205) Should use a non-zero generator index.
-        pedersen_hash(self.serialize_content(), 0)
-    }
 
     fn compute_nullifier(self, context: &mut PrivateContext) -> Field {
         let note_hash_for_nullify = compute_note_hash_for_consumption(self);
@@ -60,14 +43,6 @@ impl NoteInterface<ADDRESS_NOTE_LEN>  for AddressNote {
         ],0)
     }
 
-    fn set_header(&mut self, header: NoteHeader) {
-        self.header = header;
-    }
-
-    fn get_header(note: Self) -> NoteHeader {
-        note.header
-    }
-
     // Broadcasts the note as an encrypted log on L1.
     fn broadcast(self, context: &mut PrivateContext, slot: Field) {
         let encryption_pub_key = get_public_key(self.owner);
@@ -82,12 +57,6 @@ impl NoteInterface<ADDRESS_NOTE_LEN>  for AddressNote {
         );
         // docs:end:encrypted
     }
-
-    fn get_note_type_id() -> Field {
-        // TODO(#4519): autogenerate
-        // python -c "print(int(''.join(str(ord(c)) for c in 'AddressNote')))"
-        6510010011410111511578111116101
-    }
 }
 
 impl AddressNote {