Preliminary support for tracing workflow activity

.github/workflows/ci_linux.yaml

@@ -39,6 +39,9 @@ jobs:
     - name: Test diagram
       run: cargo test --workspace -F=diagram
 
+    - name: Test trace
+      run: cargo test --workspace -F=trace
+
     - name: Build single_threaded_async
       run: cargo build --features single_threaded_async
     - name: Test single_threaded_async

Cargo.toml

@@ -31,7 +31,7 @@ async-task = { version = "4.7.1", optional = true }
 bevy_tasks = { version = "0.12", features = ["multi-threaded"] }
 
 itertools = "0.13"
-smallvec = "1.13"
+smallvec = { version = "1.13", features = ["serde"] }
 tokio = { version = "1.39", features = ["sync"] }
 futures = "0.3"
 backtrace = "0.3"
@@ -68,6 +68,7 @@ diagram = [
   "dep:serde_json",
   "dep:strum",
 ]
+trace = ["diagram"]
 
 [dev-dependencies]
 async-std = { version = "1.12" }

examples/diagram/calculator/src/main.rs

@@ -40,19 +40,19 @@ fn main() -> Result<(), Box<dyn Error>> {
 
     let mut registry = DiagramElementRegistry::new();
     registry.register_node_builder(
-        NodeBuilderOptions::new("add").with_name("Add"),
+        NodeBuilderOptions::new("add").with_default_display_text("Add"),
         |builder, config: f64| builder.create_map_block(move |req: f64| req + config),
     );
     registry.register_node_builder(
-        NodeBuilderOptions::new("sub").with_name("Subtract"),
+        NodeBuilderOptions::new("sub").with_default_display_text("Subtract"),
         |builder, config: f64| builder.create_map_block(move |req: f64| req - config),
     );
     registry.register_node_builder(
-        NodeBuilderOptions::new("mul").with_name("Multiply"),
+        NodeBuilderOptions::new("mul").with_default_display_text("Multiply"),
         |builder, config: f64| builder.create_map_block(move |req: f64| req * config),
     );
     registry.register_node_builder(
-        NodeBuilderOptions::new("div").with_name("Divide"),
+        NodeBuilderOptions::new("div").with_default_display_text("Divide"),
         |builder, config: f64| builder.create_map_block(move |req: f64| req / config),
     );
 

registry.schema.json

@@ -24,11 +24,15 @@
       "additionalProperties": {
         "$ref": "#/$defs/SectionRegistration"
       }
+    },
+    "trace_supported": {
+      "type": "boolean"
     }
   },
   "required": [
     "nodes",
     "sections",
+    "trace_supported",
     "messages",
     "schemas"
   ],
@@ -114,7 +118,8 @@
         "config_schema": {
           "$ref": "#/$defs/Schema"
         },
-        "name": {
+        "default_display_text": {
+          "description": "If the user does not specify a default display text, the node ID will\n be used here.",
           "type": "string"
         },
         "request": {
@@ -125,7 +130,7 @@
         }
       },
       "required": [
-        "name",
+        "default_display_text",
         "request",
         "response",
         "config_schema"
@@ -204,15 +209,15 @@
         "config_schema": {
           "$ref": "#/$defs/Schema"
         },
+        "default_display_text": {
+          "type": "string"
+        },
         "metadata": {
           "$ref": "#/$defs/SectionMetadata"
-        },
-        "name": {
-          "type": "string"
         }
       },
       "required": [
-        "name",
+        "default_display_text",
         "metadata",
         "config_schema"
       ]