1 files changed, 47 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/reducers/exceptions.js b/devtools/client/debugger/src/reducers/exceptions.js
new file mode 100644
index 0000000000..f4d98115ea
--- /dev/null
+++ b/devtools/client/debugger/src/reducers/exceptions.js
@@ -0,0 +1,47 @@
+/* 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/>. */
+
+/**
+ * Exceptions reducer
+ * @module reducers/exceptionss
+ */
+
+export function initialExceptionsState() {
+  return {
+    exceptions: {},
+  };
+}
+
+function update(state = initialExceptionsState(), action) {
+  switch (action.type) {
+    case "ADD_EXCEPTION":
+      return updateExceptions(state, action);
+  }
+  return state;
+}
+
+function updateExceptions(state, action) {
+  const { exception } = action;
+  const sourceActorId = exception.sourceActorId;
+
+  if (state.exceptions[sourceActorId]) {
+    const sourceExceptions = state.exceptions[sourceActorId];
+    return {
+      ...state,
+      exceptions: {
+        ...state.exceptions,
+        [sourceActorId]: [...sourceExceptions, exception],
+      },
+    };
+  }
+  return {
+    ...state,
+    exceptions: {
+      ...state.exceptions,
+      [sourceActorId]: [exception],
+    },
+  };
+}
+
+export default update;