Rework the runtime delta experiment to the agreed shape: graph-craft structural deltas, an editor metadata wrapper, and diff-derived metadata ops

node-graph/graph-craft/src/lib.rs

@@ -7,6 +7,7 @@ pub use core_types::{ProtoNodeIdentifier, Type, TypeDescriptor, concrete, descri
 
 pub mod application_io;
 pub mod document;
+pub mod runtime_delta;
 pub use document::{DocumentNode, NodeNetwork};
 pub mod graphene_compiler;
 pub mod proto;

node-graph/graph-craft/src/runtime_delta.rs

@@ -0,0 +1,30 @@
+use crate::document::{DocumentNode, NodeId, NodeInput};
+
+#[derive(Debug, Clone, PartialEq)]
+pub enum RuntimeDelta {
+	AddNode {
+		network_path: Vec<NodeId>,
+		node_id: NodeId,
+		node: Box<DocumentNode>,
+	},
+	ReplaceNode {
+		network_path: Vec<NodeId>,
+		node_id: NodeId,
+		node: Box<DocumentNode>,
+	},
+	RemoveNode {
+		network_path: Vec<NodeId>,
+		node_id: NodeId,
+	},
+	SetInput {
+		network_path: Vec<NodeId>,
+		node_id: NodeId,
+		input_index: usize,
+		input: NodeInput,
+	},
+	SetExport {
+		network_path: Vec<NodeId>,
+		export_index: usize,
+		input: NodeInput,
+	},
+}