From d7ef8ea4fd5d637e4d194f067bacede6051cc6ea Mon Sep 17 00:00:00 2001
From: Victor Giers <mail@victorgiers.com>
Date: Mon, 11 May 2026 14:12:40 +0200
Subject: [PATCH] Enhance error handling and structure for commit transform
 session command

---
 src/commands/commit-transform-session-command.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/commands/commit-transform-session-command.ts b/src/commands/commit-transform-session-command.ts
index 73cfca94..58e63149 100644
--- a/src/commands/commit-transform-session-command.ts
+++ b/src/commands/commit-transform-session-command.ts
@@ -215,7 +215,7 @@ function createUpdatedBrushFromPreview(
 
 export function createCommitTransformSessionCommand(document: SceneDocument, session: ActiveTransformSession): EditorCommand {
   switch (session.target.kind) {
-    case "brush":
+    case "brush": {
       if (session.preview.kind !== "brush") {
         throw new Error("Brush transform preview is invalid.");
       }
@@ -242,6 +242,8 @@ export function createCommitTransformSessionCommand(document: SceneDocument, ses
             label: createTransformCommandLabel(session)
           });
       }
+      throw new Error(`Unsupported transform operation: ${session.operation}.`);
+    }
     case "brushes":
       if (session.preview.kind !== "brushes") {
         throw new Error("Whitebox multi-transform preview is invalid.");