From 544871e5795751d640487a1824ad238c4de5821f Mon Sep 17 00:00:00 2001
From: Frank Noirot <frank@kittycad.io>
Date: Mon, 4 Nov 2024 15:46:34 -0500
Subject: [PATCH] Make `expandPath` not assume there is an associated sweep
 artifact

---
 src/lang/std/artifactGraph.ts | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/src/lang/std/artifactGraph.ts b/src/lang/std/artifactGraph.ts
index fc76255768..702e1a14ae 100644
--- a/src/lang/std/artifactGraph.ts
+++ b/src/lang/std/artifactGraph.ts
@@ -36,9 +36,12 @@ interface solid2D {
 }
 export interface PathArtifactRich {
   type: 'path'
+  /** A path must always lie on a plane */
   plane: PlaneArtifact | WallArtifact
+  /** A path must always contain 0 or more segments */
   segments: Array<SegmentArtifact>
-  sweep: SweepArtifact
+  /** A path may not result in a sweep artifact */
+  sweep?: SweepArtifact
   codeRef: CommonCommandProperties
 }
 
@@ -587,13 +590,15 @@ export function expandPath(
     { keys: path.segIds, types: ['segment'] },
     artifactGraph
   )
-  const sweep = getArtifactOfTypes(
-    {
-      key: path.sweepId,
-      types: ['sweep'],
-    },
-    artifactGraph
-  )
+  const sweep = path.sweepId
+    ? getArtifactOfTypes(
+        {
+          key: path.sweepId,
+          types: ['sweep'],
+        },
+        artifactGraph
+      )
+    : undefined
   const plane = getArtifactOfTypes(
     { key: path.planeId, types: ['plane', 'wall'] },
     artifactGraph