feat(ir): implement resolve functionality (untested)

crates/ir/src/id.rs

@@ -25,7 +25,7 @@ use crate::Span;
 ///
 /// It does **not** contain what kind of instruction this is.
 /// Refer to [`crate::instruction::Kind`] for this instead.
-#[derive(Clone, Debug, PartialEq, Eq, Hash, Deserialize, Serialize)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
 pub struct Instruction(pub(super) Span);
 
 impl Instruction {
@@ -39,23 +39,37 @@ impl Instruction {
 /// On an **instruction**, accepts incoming data.
 ///
 /// An **instruction** cannot run if any of these are not connected.
-#[derive(Clone, Debug, PartialEq, Eq, Hash, Deserialize, Serialize)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
 pub struct Input(pub(super) Socket);
 
+impl Input {
+    #[must_use]
+    pub fn socket(&self) -> &Socket {
+        &self.0
+    }
+}
+
 /// On an **instruction**, returns outgoing data to be fed to [`Input`]s.
 ///
 /// In contrast to [`Input`]s, [`Output`]s may be used or unused.
-#[derive(Clone, Debug, PartialEq, Eq, Hash, Deserialize, Serialize)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
 pub struct Output(pub(super) Socket);
 
+impl Output {
+    #[must_use]
+    pub fn socket(&self) -> &Socket {
+        &self.0
+    }
+}
+
 /// An unspecified socket on a specific **instruction**,
 /// and where it is on that **instruction**.
-#[derive(Clone, Debug, PartialEq, Eq, Hash, Deserialize, Serialize)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
 pub struct Socket {
     pub belongs_to: Instruction,
     pub idx: SocketIdx,
 }
 
 /// Where a [`Socket`] is on an **instruction**.
-#[derive(Clone, Debug, PartialEq, Eq, Hash, Deserialize, Serialize)]
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash, Serialize, Deserialize)]
 pub struct SocketIdx(pub u16);