1 files changed, 62 insertions, 0 deletions
diff --git a/devtools/shared/protocol/Actor/generateActorSpec.js b/devtools/shared/protocol/Actor/generateActorSpec.js
new file mode 100644
index 0000000000..9b3b166c8b
--- /dev/null
+++ b/devtools/shared/protocol/Actor/generateActorSpec.js
@@ -0,0 +1,62 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+var { Request } = require("resource://devtools/shared/protocol/Request.js");
+const { Response } = require("resource://devtools/shared/protocol/Response.js");
+var {
+  types,
+  registeredTypes,
+} = require("resource://devtools/shared/protocol/types.js");
+
+/**
+ * Generates an actor specification from an actor description.
+ */
+var generateActorSpec = function (actorDesc) {
+  const actorSpec = {
+    typeName: actorDesc.typeName,
+    methods: [],
+  };
+
+  // Find additional method specifications
+  if (actorDesc.methods) {
+    for (const name in actorDesc.methods) {
+      const methodSpec = actorDesc.methods[name];
+      const spec = {};
+
+      spec.name = methodSpec.name || name;
+      spec.request = new Request(
+        Object.assign({ type: spec.name }, methodSpec.request || undefined)
+      );
+      spec.response = new Response(methodSpec.response || undefined);
+      spec.release = methodSpec.release;
+      spec.oneway = methodSpec.oneway;
+
+      actorSpec.methods.push(spec);
+    }
+  }
+
+  // Find event specifications
+  if (actorDesc.events) {
+    actorSpec.events = new Map();
+    for (const name in actorDesc.events) {
+      const eventRequest = actorDesc.events[name];
+      Object.freeze(eventRequest);
+      actorSpec.events.set(
+        name,
+        new Request(Object.assign({ type: name }, eventRequest))
+      );
+    }
+  }
+
+  if (!registeredTypes.has(actorSpec.typeName)) {
+    types.addActorType(actorSpec.typeName);
+  }
+  registeredTypes.get(actorSpec.typeName).actorSpec = actorSpec;
+
+  return actorSpec;
+};
+
+exports.generateActorSpec = generateActorSpec;