Fix yarn lint to use all files recursively

* Refactor 'Delete selection' as actor
Will fix #4662

* WIP logging

* WIP: working Solid3dGetExtrusionFaceInfo for loft

* Working wall deletion of loft

* Add offset plane deletion

* Add feature tree deletion of shell

* Clean up

* Revert "Clean up"

This reverts commit 214763cc2b.

* Clean up rust changes, taking the sketch with the most paths

* Working cap selection and deletion

* Clean up

* Add test for loft and offset plane deletion via selection

* A snapshot a day keeps the bugs away! 📷🐛 (OS: windows-16-cores)

* A snapshot a day keeps the bugs away! 📷🐛 (OS: namespace-profile-macos-8-cores)

* Set reenter: false as it was originally

* Passing test

* Add shell deletion via feature tree test

* Revert the migration to promise actor

* A snapshot a day keeps the bugs away! 📷🐛 (OS: namespace-profile-ubuntu-8-cores)

* Trigger CI

* A snapshot a day keeps the bugs away! 📷🐛 (OS: namespace-profile-ubuntu-8-cores)

* Trigger CI

* A snapshot a day keeps the bugs away! 📷🐛 (OS: namespace-profile-ubuntu-8-cores)

* Trigger CI

* A snapshot a day keeps the bugs away! 📷🐛 (OS: namespace-profile-ubuntu-8-cores)

* Trigger CI

* Use cmd.id as solid_id after latest engine merge

* Add feature tree deletion of offset plane and fix lint

* Add feature tree deletion of loft

* Clean up

* Better comment

* Lint fix

* Remove sketch sorting

* WIP: sweep point-and-click

* Working sweep

* Add test

* Make sweep a development command

* Fix tsc error

* Clean up for review

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

.eslintrc

@@ -5,16 +5,24 @@
     },
     "plugins": [
       "css-modules",
+      "jest",
+      "react",
       "suggest-no-throw",
+      "@typescript-eslint"
     ],
     "extends": [
-      "react-app",
-      "react-app/jest",
       "plugin:css-modules/recommended"
     ],
     "rules": {
       "@typescript-eslint/no-floating-promises": "error",
       "@typescript-eslint/no-misused-promises": "error",
+      "no-restricted-globals": [
+        "error",
+        {
+          "name": "isNaN",
+          "message": "Use Number.isNaN() instead."
+        }
+      ],
       "semi": [
         "error",
         "never"

.github/ci-cd-scripts/playwright-electron.sh

@@ -21,7 +21,7 @@ if [[ ! -f "test-results/.last-run.json" ]]; then
 fi
 
 retry=1
-max_retrys=4
+max_retrys=5
 
 # retry failed tests, doing our own retries because using inbuilt playwright retries causes connection issues
 while [[ $retry -le $max_retrys ]]; do

docs/kcl/index.md

@@ -59,7 +59,6 @@ layout: manual
 * [`legAngX`](kcl/legAngX)
 * [`legAngY`](kcl/legAngY)
 * [`legLen`](kcl/legLen)
-* [`len`](kcl/len)
 * [`line`](kcl/line)
 * [`lineTo`](kcl/lineTo)
 * [`ln`](kcl/ln)

e2e/playwright/fixtures/toolbarFixture.ts

@@ -14,6 +14,7 @@ export class ToolbarFixture {
 
   extrudeButton!: Locator
   loftButton!: Locator
+  sweepButton!: Locator
   shellButton!: Locator
   offsetPlaneButton!: Locator
   startSketchBtn!: Locator
@@ -40,6 +41,7 @@ export class ToolbarFixture {
     this.page = page
     this.extrudeButton = page.getByTestId('extrude')
     this.loftButton = page.getByTestId('loft')
+    this.sweepButton = page.getByTestId('sweep')
     this.shellButton = page.getByTestId('shell')
     this.offsetPlaneButton = page.getByTestId('plane-offset')
     this.startSketchBtn = page.getByTestId('sketch')

e2e/playwright/point-click.spec.ts

@@ -756,6 +756,17 @@ test(`Offset plane point-and-click`, async ({
     })
     await scene.expectPixelColor([74, 74, 74], testPoint, 15)
   })
+
+  await test.step('Delete offset plane via feature tree selection', async () => {
+    await editor.closePane()
+    const operationButton = await toolbar.getFeatureTreeOperation(
+      'Offset Plane',
+      0
+    )
+    await operationButton.click({ button: 'left' })
+    await page.keyboard.press('Backspace')
+    await scene.expectPixelColor([50, 51, 96], testPoint, 15)
+  })
 })
 
 const loftPointAndClickCases = [
@@ -851,6 +862,173 @@ loftPointAndClickCases.forEach(({ shouldPreselect }) => {
       })
       await scene.expectPixelColor([89, 89, 89], testPoint, 15)
     })
+
+    await test.step('Delete loft via feature tree selection', async () => {
+      await editor.closePane()
+      const operationButton = await toolbar.getFeatureTreeOperation('Loft', 0)
+      await operationButton.click({ button: 'left' })
+      await page.keyboard.press('Backspace')
+      await scene.expectPixelColor([254, 254, 254], testPoint, 15)
+    })
+  })
+})
+
+// TODO: merge with above test. Right now we're not able to delete a loft
+// right after creation via selection for some reason, so we go with a new instance
+test('Loft and offset plane deletion via selection', async ({
+  context,
+  page,
+  homePage,
+  scene,
+}) => {
+  const initialCode = `sketch001 = startSketchOn('XZ')
+  |> circle({ center = [0, 0], radius = 30 }, %)
+  plane001 = offsetPlane('XZ', 50)
+  sketch002 = startSketchOn(plane001)
+  |> circle({ center = [0, 0], radius = 20 }, %)
+loft001 = loft([sketch001, sketch002])
+`
+  await context.addInitScript((initialCode) => {
+    localStorage.setItem('persistCode', initialCode)
+  }, initialCode)
+  await page.setBodyDimensions({ width: 1000, height: 500 })
+  await homePage.goToModelingScene()
+
+  // One dumb hardcoded screen pixel value
+  const testPoint = { x: 575, y: 200 }
+  const [clickOnSketch1] = scene.makeMouseHelpers(testPoint.x, testPoint.y)
+  const [clickOnSketch2] = scene.makeMouseHelpers(testPoint.x, testPoint.y + 80)
+
+  await test.step(`Delete loft`, async () => {
+    // Check for loft
+    await scene.expectPixelColor([89, 89, 89], testPoint, 15)
+    await clickOnSketch1()
+    await expect(page.locator('.cm-activeLine')).toHaveText(`
+      |> circle({ center = [0, 0], radius = 30 }, %)
+    `)
+    await page.keyboard.press('Backspace')
+    // Check for sketch 1
+    await scene.expectPixelColor([254, 254, 254], testPoint, 15)
+  })
+
+  await test.step('Delete sketch002', async () => {
+    await page.waitForTimeout(1000)
+    await clickOnSketch2()
+    await expect(page.locator('.cm-activeLine')).toHaveText(`
+      |> circle({ center = [0, 0], radius = 20 }, %)
+    `)
+    await page.keyboard.press('Backspace')
+    // Check for plane001
+    await scene.expectPixelColor([228, 228, 228], testPoint, 15)
+  })
+
+  await test.step('Delete plane001', async () => {
+    await page.waitForTimeout(1000)
+    await clickOnSketch2()
+    await expect(page.locator('.cm-activeLine')).toHaveText(`
+      plane001 = offsetPlane('XZ', 50)
+    `)
+    await page.keyboard.press('Backspace')
+    // Check for sketch 1
+    await scene.expectPixelColor([254, 254, 254], testPoint, 15)
+  })
+})
+
+test(`Sweep point-and-click`, async ({
+  context,
+  page,
+  homePage,
+  scene,
+  editor,
+  toolbar,
+  cmdBar,
+}) => {
+  const initialCode = `sketch001 = startSketchOn('YZ')
+  |> circle({
+       center = [0, 0],
+       radius = 500
+     }, %)
+sketch002 = startSketchOn('XZ')
+  |> startProfileAt([0, 0], %)
+  |> xLine(-500, %)
+  |> tangentialArcTo([-2000, 500], %)
+`
+  await context.addInitScript((initialCode) => {
+    localStorage.setItem('persistCode', initialCode)
+  }, initialCode)
+  await page.setBodyDimensions({ width: 1000, height: 500 })
+  await homePage.goToModelingScene()
+  await scene.waitForExecutionDone()
+
+  // One dumb hardcoded screen pixel value
+  const testPoint = { x: 700, y: 250 }
+  const [clickOnSketch1] = scene.makeMouseHelpers(testPoint.x, testPoint.y)
+  const [clickOnSketch2] = scene.makeMouseHelpers(testPoint.x - 50, testPoint.y)
+  const sweepDeclaration = 'sweep001 = sweep({ path = sketch002 }, sketch001)'
+
+  await test.step(`Look for sketch001`, async () => {
+    await toolbar.closePane('code')
+    await scene.expectPixelColor([53, 53, 53], testPoint, 15)
+  })
+
+  await test.step(`Go through the command bar flow`, async () => {
+    await toolbar.sweepButton.click()
+    await cmdBar.expectState({
+      commandName: 'Sweep',
+      currentArgKey: 'profile',
+      currentArgValue: '',
+      headerArguments: {
+        Path: '',
+        Profile: '',
+      },
+      highlightedHeaderArg: 'profile',
+      stage: 'arguments',
+    })
+    await clickOnSketch1()
+    await cmdBar.expectState({
+      commandName: 'Sweep',
+      currentArgKey: 'path',
+      currentArgValue: '',
+      headerArguments: {
+        Path: '',
+        Profile: '1 face',
+      },
+      highlightedHeaderArg: 'path',
+      stage: 'arguments',
+    })
+    await clickOnSketch2()
+    await cmdBar.expectState({
+      commandName: 'Sweep',
+      headerArguments: {
+        Path: '1 face',
+        Profile: '1 face',
+      },
+      stage: 'review',
+    })
+    await cmdBar.progressCmdBar()
+  })
+
+  await test.step(`Confirm code is added to the editor, scene has changed`, async () => {
+    await scene.expectPixelColor([135, 64, 73], testPoint, 15)
+    await toolbar.openPane('code')
+    await editor.expectEditor.toContain(sweepDeclaration)
+    await editor.expectState({
+      diagnostics: [],
+      activeLines: [sweepDeclaration],
+      highlightedCode: '',
+    })
+    await toolbar.closePane('code')
+  })
+
+  await test.step('Delete sweep via feature tree selection', async () => {
+    await toolbar.openPane('feature-tree')
+    await page.waitForTimeout(500)
+    const operationButton = await toolbar.getFeatureTreeOperation('Sweep', 0)
+    await operationButton.click({ button: 'left' })
+    await page.keyboard.press('Backspace')
+    await page.waitForTimeout(500)
+    await toolbar.closePane('feature-tree')
+    await scene.expectPixelColor([53, 53, 53], testPoint, 15)
   })
 })
 
@@ -1030,4 +1208,104 @@ extrude001 = extrude(40, sketch001)
     })
     await scene.expectPixelColor([49, 49, 49], testPoint, 15)
   })
+
+  await test.step('Delete shell via feature tree selection', async () => {
+    await editor.closePane()
+    const operationButton = await toolbar.getFeatureTreeOperation('Shell', 0)
+    await operationButton.click({ button: 'left' })
+    await page.keyboard.press('Backspace')
+    await scene.expectPixelColor([99, 99, 99], testPoint, 15)
+  })
+})
+
+const shellSketchOnFacesCases = [
+  `sketch001 = startSketchOn('XZ')
+  |> circle({ center = [0, 0], radius = 100 }, %)
+  |> extrude(100, %)
+
+sketch002 = startSketchOn(sketch001, 'END')
+  |> circle({ center = [0, 0], radius = 50 }, %)
+  |> extrude(50, %)
+  `,
+  `sketch001 = startSketchOn('XZ')
+  |> circle({ center = [0, 0], radius = 100 }, %)
+extrude001 = extrude(100, sketch001)
+
+sketch002 = startSketchOn(extrude001, 'END')
+  |> circle({ center = [0, 0], radius = 50 }, %)
+extrude002 = extrude(50, sketch002)
+  `,
+]
+shellSketchOnFacesCases.forEach((initialCode, index) => {
+  const hasExtrudesInPipe = index === 0
+  test(`Shell point-and-click sketch on face (extrudes in pipes: ${hasExtrudesInPipe})`, async ({
+    context,
+    page,
+    homePage,
+    scene,
+    editor,
+    toolbar,
+    cmdBar,
+  }) => {
+    await context.addInitScript((initialCode) => {
+      localStorage.setItem('persistCode', initialCode)
+    }, initialCode)
+    await page.setBodyDimensions({ width: 1000, height: 500 })
+    await homePage.goToModelingScene()
+    await scene.waitForExecutionDone()
+
+    // One dumb hardcoded screen pixel value
+    const testPoint = { x: 550, y: 295 }
+    const [clickOnCap] = scene.makeMouseHelpers(testPoint.x, testPoint.y)
+    const shellDeclaration = `shell001 = shell({ faces = ['end'], thickness = 5 }, ${
+      hasExtrudesInPipe ? 'sketch002' : 'extrude002'
+    })`
+
+    await test.step(`Look for the grey of the shape`, async () => {
+      await toolbar.closePane('code')
+      await scene.expectPixelColor([128, 128, 128], testPoint, 15)
+    })
+
+    await test.step(`Go through the command bar flow, selecting a cap and keeping default thickness`, async () => {
+      await toolbar.shellButton.click()
+      await cmdBar.expectState({
+        stage: 'arguments',
+        currentArgKey: 'selection',
+        currentArgValue: '',
+        headerArguments: {
+          Selection: '',
+          Thickness: '',
+        },
+        highlightedHeaderArg: 'selection',
+        commandName: 'Shell',
+      })
+      await clickOnCap()
+      await page.waitForTimeout(500)
+      await cmdBar.progressCmdBar()
+      await page.waitForTimeout(500)
+      await cmdBar.progressCmdBar()
+      await page.waitForTimeout(500)
+      await cmdBar.expectState({
+        stage: 'review',
+        headerArguments: {
+          Selection: '1 cap',
+          Thickness: '5',
+        },
+        commandName: 'Shell',
+      })
+      await cmdBar.progressCmdBar()
+    })
+
+    await test.step(`Confirm code is added to the editor, scene has changed`, async () => {
+      await toolbar.openPane('code')
+      await editor.expectEditor.toContain(shellDeclaration)
+      await editor.expectState({
+        diagnostics: [],
+        activeLines: [shellDeclaration],
+        highlightedCode: '',
+      })
+      await toolbar.closePane('code')
+      await scene.expectPixelColor([73, 73, 73], testPoint, 15)
+    })
+  })
 })

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1721933792,
-        "narHash": "sha256-zYVwABlQnxpbaHMfX6Wt9jhyQstFYwN2XjleOJV3VVg=",
+        "lastModified": 1736320768,
+        "narHash": "sha256-nIYdTAiKIGnFNugbomgBJR+Xv5F1ZQU+HfaBqJKroC0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "2122a9b35b35719ad9a395fe783eabb092df01b1",
+        "rev": "4bc9c909d9ac828a039f288cf872d16d38185db8",
         "type": "github"
       },
       "original": {
@@ -18,11 +18,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1718428119,
-        "narHash": "sha256-WdWDpNaq6u1IPtxtYHHWpl5BmabtpmLnMAx0RdJ/vo8=",
+        "lastModified": 1728538411,
+        "narHash": "sha256-f0SBJz1eZ2yOuKUr5CA9BHULGXVSn6miBuUWdTyhUhU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "e6cea36f83499eb4e9cd184c8a8e823296b50ad5",
+        "rev": "b69de56fac8c2b6f8fd27f2eca01dcda8e0a4221",
         "type": "github"
       },
       "original": {
@@ -43,11 +43,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1721960387,
-        "narHash": "sha256-o21ax+745ETGXrcgc/yUuLw1SI77ymp3xEpJt+w/kks=",
+        "lastModified": 1736476219,
+        "narHash": "sha256-+qyv3QqdZCdZ3cSO/cbpEY6tntyYjfe1bB12mdpNFaY=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "9cbf831c5b20a53354fc12758abd05966f9f1699",
+        "rev": "de30cc5963da22e9742bbbbb9a3344570ed237b9",
         "type": "github"
       },
       "original": {

package.json

@@ -26,7 +26,7 @@
     "@fortawesome/react-fontawesome": "^0.2.0",
     "@headlessui/react": "^1.7.19",
     "@headlessui/tailwindcss": "^0.2.0",
-    "@kittycad/lib": "2.0.12",
+    "@kittycad/lib": "2.0.13",
     "@lezer/highlight": "^1.2.1",
     "@lezer/lr": "^1.4.1",
     "@react-hook/resize-observer": "^2.0.1",
@@ -91,8 +91,8 @@
     "build:wasm": "yarn wasm-prep && cd src/wasm-lib && wasm-pack build --release --target web --out-dir pkg && cargo test -p kcl-lib export_bindings && cd ../.. && yarn isomorphic-copy-wasm && yarn fmt",
     "remove-importmeta": "sed -i 's/import.meta.url/window.location.origin/g' \"./src/wasm-lib/pkg/wasm_lib.js\"; sed -i '' 's/import.meta.url/window.location.origin/g' \"./src/wasm-lib/pkg/wasm_lib.js\" || echo \"sed for both mac and linux\"",
     "wasm-prep": "rimraf src/wasm-lib/pkg && mkdirp src/wasm-lib/pkg && rimraf src/wasm-lib/kcl/bindings",
-    "lint-fix": "eslint --fix src e2e packages/codemirror-lsp-client",
-    "lint": "eslint --max-warnings 0 src e2e packages/codemirror-lsp-client",
+    "lint-fix": "eslint --fix --ext .ts --ext .tsx src e2e packages/codemirror-lsp-client/src",
+    "lint": "eslint --max-warnings 0 --ext .ts --ext .tsx src e2e packages/codemirror-lsp-client/src",
     "files:set-version": "echo \"$(jq --arg v \"$VERSION\" '.version=$v' package.json --indent 2)\" > package.json",
     "files:set-notes": "./scripts/set-files-notes.sh",
     "files:flip-to-nightly": "./scripts/flip-files-to-nightly.sh",
@@ -171,8 +171,6 @@
     "@types/uuid": "^9.0.8",
     "@types/wicg-file-system-access": "^2023.10.5",
     "@types/ws": "^8.5.13",
-    "@typescript-eslint/eslint-plugin": "^5.0.0",
-    "@typescript-eslint/parser": "^5.0.0",
     "@vitejs/plugin-react": "^4.3.0",
     "@vitest/web-worker": "^1.5.0",
     "@xstate/cli": "^0.5.17",
@@ -182,9 +180,10 @@
     "electron-builder": "24.13.3",
     "electron-notarize": "1.2.2",
     "eslint": "^8.0.1",
-    "eslint-config-react-app": "^7.0.1",
     "eslint-plugin-css-modules": "^2.12.0",
     "eslint-plugin-import": "^2.30.0",
+    "eslint-plugin-jest": "^28.10.0",
+    "eslint-plugin-react": "^7.37.3",
     "eslint-plugin-suggest-no-throw": "^1.0.0",
     "happy-dom": "^16.3.0",
     "http-server": "^14.1.1",
@@ -200,6 +199,7 @@
     "tailwindcss": "^3.4.1",
     "ts-node": "^10.0.0",
     "typescript": "^5.7.2",
+    "typescript-eslint": "^8.19.1",
     "vite": "^5.4.6",
     "vite-plugin-package-version": "^1.1.0",
     "vite-tsconfig-paths": "^4.3.2",

packages/codemirror-lsp-client/src/client/codec/demuxer.ts

@@ -42,7 +42,7 @@ export default class StreamDemuxer extends Queue<Uint8Array> {
           // try to parse the content-length from the headers
           const length = parseInt(match[1])
 
-          if (isNaN(length))
+          if (Number.isNaN(length))
             return Promise.reject(new Error('invalid content length'))
 
           // slice the headers since we now have the content length

packages/codemirror-lsp-client/src/plugin/lsp.ts

@@ -368,13 +368,20 @@ export class LanguageServerPlugin implements PluginValue {
         sortText,
         filterText,
       }) => {
+        const detailText = [
+          deprecated ? 'Deprecated' : undefined,
+          labelDetails ? labelDetails.detail : detail,
+        ]
+          // Don't let undefined appear.
+          .filter(Boolean)
+          .join(' ')
         const completion: Completion & {
           filterText: string
           sortText?: string
           apply: string
         } = {
           label,
-          detail: labelDetails ? labelDetails.detail : detail,
+          detail: detailText,
           apply: label,
           type: kind && CompletionItemKindMap[kind].toLowerCase(),
           sortText: sortText ?? label,
@@ -382,7 +389,11 @@ export class LanguageServerPlugin implements PluginValue {
         }
         if (documentation) {
           completion.info = () => {
-            const htmlString = formatMarkdownContents(documentation)
+            const deprecatedHtml = deprecated
+              ? '<p><strong>Deprecated</strong></p>'
+              : ''
+            const htmlString =
+              deprecatedHtml + formatMarkdownContents(documentation)
             const htmlNode = document.createElement('div')
             htmlNode.style.display = 'contents'
             htmlNode.innerHTML = htmlString

playwright.electron.config.ts

@@ -32,10 +32,9 @@ export default defineConfig({
   },
   projects: [
     {
-      name: 'Google Chrome',
+      name: 'chromium',
       use: {
         ...devices['Desktop Chrome'],
-        channel: 'chrome',
         contextOptions: {
           /* Chromium is the only one with these permission types */
           permissions: ['clipboard-write', 'clipboard-read'],

src/components/ModelingMachineProvider.tsx

@@ -157,39 +157,38 @@ export const ModelingMachineProvider = ({
         'enable copilot': () => {
           editorManager.setCopilotEnabled(true)
         },
-        // tsc reports this typing as perfectly fine, but eslint is complaining.
-        // It's actually nonsensical, so I'm quieting.
-        // eslint-disable-next-line @typescript-eslint/no-misused-promises
-        'sketch exit execute': async ({
-          context: { store },
-        }): Promise<void> => {
-          // When cancelling the sketch mode we should disable sketch mode within the engine.
-          await engineCommandManager.sendSceneCommand({
-            type: 'modeling_cmd_req',
-            cmd_id: uuidv4(),
-            cmd: { type: 'sketch_mode_disable' },
-          })
-
-          sceneInfra.camControls.syncDirection = 'clientToEngine'
-
-          if (cameraProjection.current === 'perspective') {
-            await sceneInfra.camControls.snapToPerspectiveBeforeHandingBackControlToEngine()
-          }
-
-          sceneInfra.camControls.syncDirection = 'engineToClient'
-
-          store.videoElement?.pause()
-
-          return kclManager
-            .executeCode()
-            .then(() => {
-              if (engineCommandManager.engineConnection?.idleMode) return
-
-              store.videoElement?.play().catch((e) => {
-                console.warn('Video playing was prevented', e)
-              })
+        'sketch exit execute': ({ context: { store } }) => {
+          // TODO: Remove this async callback.  For some reason eslint wouldn't
+          // let me disable @typescript-eslint/no-misused-promises for the line.
+          ;(async () => {
+            // When cancelling the sketch mode we should disable sketch mode within the engine.
+            await engineCommandManager.sendSceneCommand({
+              type: 'modeling_cmd_req',
+              cmd_id: uuidv4(),
+              cmd: { type: 'sketch_mode_disable' },
             })
-            .catch(reportRejection)
+
+            sceneInfra.camControls.syncDirection = 'clientToEngine'
+
+            if (cameraProjection.current === 'perspective') {
+              await sceneInfra.camControls.snapToPerspectiveBeforeHandingBackControlToEngine()
+            }
+
+            sceneInfra.camControls.syncDirection = 'engineToClient'
+
+            store.videoElement?.pause()
+
+            return kclManager
+              .executeCode()
+              .then(() => {
+                if (engineCommandManager.engineConnection?.idleMode) return
+
+                store.videoElement?.play().catch((e) => {
+                  console.warn('Video playing was prevented', e)
+                })
+              })
+              .catch(reportRejection)
+          })().catch(reportRejection)
         },
         'Set mouse state': assign(({ context, event }) => {
           if (event.type !== 'Set mouse state') return {}
@@ -271,6 +270,7 @@ export const ModelingMachineProvider = ({
               cmd_id: uuidv4(),
               cmd: {
                 type: 'default_camera_center_to_selection',
+                camera_movement: 'vantage',
               },
             })
             .catch(reportRejection)

src/lang/modifyAst.ts

@@ -374,6 +374,37 @@ export function loftSketches(
   }
 }
 
+export function addSweep(
+  node: Node<Program>,
+  profileDeclarator: VariableDeclarator,
+  pathDeclarator: VariableDeclarator
+): {
+  modifiedAst: Node<Program>
+  pathToNode: PathToNode
+} {
+  const modifiedAst = structuredClone(node)
+  const name = findUniqueName(node, KCL_DEFAULT_CONSTANT_PREFIXES.SWEEP)
+  const sweep = createCallExpressionStdLib('sweep', [
+    createObjectExpression({ path: createIdentifier(pathDeclarator.id.name) }),
+    createIdentifier(profileDeclarator.id.name),
+  ])
+  const declaration = createVariableDeclaration(name, sweep)
+  modifiedAst.body.push(declaration)
+  const pathToNode: PathToNode = [
+    ['body', ''],
+    [modifiedAst.body.length - 1, 'index'],
+    ['declaration', 'VariableDeclaration'],
+    ['init', 'VariableDeclarator'],
+    ['arguments', 'CallExpression'],
+    [0, 'index'],
+  ]
+
+  return {
+    modifiedAst,
+    pathToNode,
+  }
+}
+
 export function revolveSketch(
   node: Node<Program>,
   pathToNode: PathToNode,
@@ -1149,11 +1180,17 @@ export async function deleteFromSelection(
     ((selection?.artifact?.type === 'wall' ||
       selection?.artifact?.type === 'cap') &&
       varDec.node.init.type === 'PipeExpression') ||
-    selection.artifact?.type === 'sweep'
+    selection.artifact?.type === 'sweep' ||
+    selection.artifact?.type === 'plane' ||
+    !selection.artifact // aka expected to be a shell at this point
   ) {
     let extrudeNameToDelete = ''
     let pathToNode: PathToNode | null = null
-    if (selection.artifact?.type !== 'sweep') {
+    if (
+      selection.artifact &&
+      selection.artifact.type !== 'sweep' &&
+      selection.artifact.type !== 'plane'
+    ) {
       const varDecName = varDec.node.id.name
       traverse(astClone, {
         enter: (node, path) => {
@@ -1169,6 +1206,17 @@ export async function deleteFromSelection(
               pathToNode = path
               extrudeNameToDelete = dec.id.name
             }
+            if (
+              dec.init.type === 'CallExpression' &&
+              dec.init.callee.name === 'loft' &&
+              dec.init.arguments?.[0].type === 'ArrayExpression' &&
+              dec.init.arguments?.[0].elements.some(
+                (a) => a.type === 'Identifier' && a.name === varDecName
+              )
+            ) {
+              pathToNode = path
+              extrudeNameToDelete = dec.id.name
+            }
           }
         },
       })

src/lang/modifyAst/addRevolve.ts

@@ -29,7 +29,9 @@ export function revolveSketch(
   pathToSketchNode: PathToNode,
   shouldPipe = false,
   angle: Expr = createLiteral(4),
-  axis: Selections
+  axisOrEdge: string,
+  axis: string,
+  edge: Selections
 ):
   | {
       modifiedAst: Node<Program>
@@ -41,31 +43,34 @@ export function revolveSketch(
   const sketchNode = getNodeFromPath(clonedAst, pathToSketchNode)
   if (err(sketchNode)) return sketchNode
 
-  // testing code
-  const pathToAxisSelection = getNodePathFromSourceRange(
-    clonedAst,
-    axis.graphSelections[0]?.codeRef.range
-  )
+  let generatedAxis
 
-  const lineNode = getNodeFromPath<CallExpression>(
-    clonedAst,
-    pathToAxisSelection,
-    'CallExpression'
-  )
-  if (err(lineNode)) return lineNode
+  if (axisOrEdge === 'Edge') {
+    const pathToAxisSelection = getNodePathFromSourceRange(
+      clonedAst,
+      edge.graphSelections[0]?.codeRef.range
+    )
+    const lineNode = getNodeFromPath<CallExpression>(
+      clonedAst,
+      pathToAxisSelection,
+      'CallExpression'
+    )
+    if (err(lineNode)) return lineNode
 
-  // TODO Kevin: What if |> close(%)?
-  // TODO Kevin: What if opposite edge
-  // TODO Kevin: What if the edge isn't planar to the sketch?
-  // TODO Kevin: add a tag.
-  const tagResult = mutateAstWithTagForSketchSegment(
-    clonedAst,
-    pathToAxisSelection
-  )
+    const tagResult = mutateAstWithTagForSketchSegment(
+      clonedAst,
+      pathToAxisSelection
+    )
 
-  // Have the tag whether it is already created or a new one is generated
-  if (err(tagResult)) return tagResult
-  const { tag } = tagResult
+    // Have the tag whether it is already created or a new one is generated
+    if (err(tagResult)) return tagResult
+    const { tag } = tagResult
+    const axisSelection = edge?.graphSelections[0]?.artifact
+    if (!axisSelection) return new Error('Generated axis selection is missing.')
+    generatedAxis = getEdgeTagCall(tag, axisSelection)
+  } else {
+    generatedAxis = createLiteral(axis)
+  }
 
   /* Original Code */
   const { node: sketchExpression } = sketchNode
@@ -91,14 +96,12 @@ export function revolveSketch(
     shallowPath: sketchPathToDecleration,
   } = sketchVariableDeclaratorNode
 
-  const axisSelection = axis?.graphSelections[0]?.artifact
-
-  if (!axisSelection) return new Error('Axis selection is missing.')
+  if (!generatedAxis) return new Error('Generated axis selection is missing.')
 
   const revolveCall = createCallExpressionStdLib('revolve', [
     createObjectExpression({
       angle: angle,
-      axis: getEdgeTagCall(tag, axisSelection),
+      axis: generatedAxis,
     }),
     createIdentifier(sketchVariableDeclarator.id.name),
   ])

src/lang/modifyAst/addShell.ts

@@ -49,17 +49,27 @@ export function addShell({
       return new Error("Couldn't find extrude")
     }
 
-    pathToExtrudeNode = extrudeLookupResult.pathToExtrudeNode
-    // Get the sketch ref from the selection
     // TODO: this assumes the segment is piped directly from the sketch, with no intermediate `VariableDeclarator` between.
     // We must find a technique for these situations that is robust to intermediate declarations
-    const sketchNode = getNodeFromPath<VariableDeclarator>(
+    const extrudeNode = getNodeFromPath<VariableDeclarator>(
       modifiedAst,
-      graphSelection.codeRef.pathToNode,
+      extrudeLookupResult.pathToExtrudeNode,
       'VariableDeclarator'
     )
-    if (err(sketchNode)) {
-      return sketchNode
+    const segmentNode = getNodeFromPath<VariableDeclarator>(
+      modifiedAst,
+      extrudeLookupResult.pathToSegmentNode,
+      'VariableDeclarator'
+    )
+    if (err(extrudeNode) || err(segmentNode)) {
+      return new Error("Couldn't find extrude")
+    }
+    if (extrudeNode.node.init.type === 'CallExpression') {
+      pathToExtrudeNode = extrudeLookupResult.pathToExtrudeNode
+    } else if (segmentNode.node.init.type === 'PipeExpression') {
+      pathToExtrudeNode = extrudeLookupResult.pathToSegmentNode
+    } else {
+      return new Error("Couldn't find extrude")
     }
 
     const selectedArtifact = graphSelection.artifact

src/lang/std/artifactGraph.ts

@@ -77,7 +77,7 @@ interface SegmentArtifactRich extends BaseArtifact {
 /** A Sweep is a more generic term for extrude, revolve, loft and sweep*/
 interface SweepArtifact extends BaseArtifact {
   type: 'sweep'
-  subType: 'extrusion' | 'revolve'
+  subType: 'extrusion' | 'revolve' | 'loft' | 'sweep'
   pathId: string
   surfaceIds: Array<string>
   edgeIds: Array<string>
@@ -85,7 +85,7 @@ interface SweepArtifact extends BaseArtifact {
 }
 interface SweepArtifactRich extends BaseArtifact {
   type: 'sweep'
-  subType: 'extrusion' | 'revolve'
+  subType: 'extrusion' | 'revolve' | 'loft' | 'sweep'
   path: PathArtifact
   surfaces: Array<WallArtifact | CapArtifact>
   edges: Array<SweepEdge>
@@ -377,7 +377,11 @@ export function getArtifactsToUpdate({
         })
     }
     return returnArr
-  } else if (cmd.type === 'extrude' || cmd.type === 'revolve') {
+  } else if (
+    cmd.type === 'extrude' ||
+    cmd.type === 'revolve' ||
+    cmd.type === 'sweep'
+  ) {
     const subType = cmd.type === 'extrude' ? 'extrusion' : cmd.type
     returnArr.push({
       id,
@@ -398,6 +402,33 @@ export function getArtifactsToUpdate({
         artifact: { ...path, sweepId: id },
       })
     return returnArr
+  } else if (
+    cmd.type === 'loft' &&
+    response.type === 'modeling' &&
+    response.data.modeling_response.type === 'loft'
+  ) {
+    returnArr.push({
+      id,
+      artifact: {
+        type: 'sweep',
+        subType: 'loft',
+        id,
+        // TODO: make sure to revisit this choice, don't think it matters for now
+        pathId: cmd.section_ids[0],
+        surfaceIds: [],
+        edgeIds: [],
+        codeRef: { range, pathToNode },
+      },
+    })
+    for (const sectionId of cmd.section_ids) {
+      const path = getArtifact(sectionId)
+      if (path?.type === 'path')
+        returnArr.push({
+          id: sectionId,
+          artifact: { ...path, sweepId: id },
+        })
+    }
+    return returnArr
   } else if (
     cmd.type === 'solid3d_get_extrusion_face_info' &&
     response?.type === 'modeling' &&

src/lib/commandBarConfigs/modelingCommandConfig.ts

@@ -37,6 +37,10 @@ export type ModelingCommandSchema = {
     // result: (typeof EXTRUSION_RESULTS)[number]
     distance: KclCommandValue
   }
+  Sweep: {
+    path: Selections
+    profile: Selections
+  }
   Loft: {
     selection: Selections
   }
@@ -47,7 +51,9 @@ export type ModelingCommandSchema = {
   Revolve: {
     selection: Selections
     angle: KclCommandValue
-    axis: Selections
+    axisOrEdge: string
+    axis: string
+    edge: Selections
   }
   Fillet: {
     // todo
@@ -290,6 +296,33 @@ export const modelingMachineCommandConfig: StateMachineCommandSetConfig<
       },
     },
   },
+  Sweep: {
+    description:
+      'Create a 3D body by moving a sketch region along an arbitrary path.',
+    icon: 'sweep',
+    status: 'development',
+    needsReview: true,
+    args: {
+      profile: {
+        inputType: 'selection',
+        selectionTypes: ['solid2D'],
+        required: true,
+        skip: true,
+        multiple: false,
+        // TODO: add dry-run validation
+        warningMessage:
+          'The sweep workflow is new and under tested. Please break it and report issues.',
+      },
+      path: {
+        inputType: 'selection',
+        selectionTypes: ['segment', 'path'],
+        required: true,
+        skip: true,
+        multiple: false,
+        // TODO: add dry-run validation
+      },
+    },
+  },
   Loft: {
     description: 'Create a 3D body by blending between two or more sketches',
     icon: 'loft',
@@ -324,10 +357,10 @@ export const modelingMachineCommandConfig: StateMachineCommandSetConfig<
       },
     },
   },
-  // TODO: Update this configuration, copied from extrude for MVP of revolve, specifically the args.selection
   Revolve: {
     description: 'Create a 3D body by rotating a sketch region about an axis.',
     icon: 'revolve',
+    status: 'development',
     needsReview: true,
     args: {
       selection: {
@@ -336,9 +369,34 @@ export const modelingMachineCommandConfig: StateMachineCommandSetConfig<
         multiple: false, // TODO: multiple selection
         required: true,
         skip: true,
+        warningMessage:
+          'The revolve workflow is new and under tested. Please break it and report issues.',
+      },
+      axisOrEdge: {
+        inputType: 'options',
+        required: true,
+        defaultValue: 'Axis',
+        options: [
+          { name: 'Axis', isCurrent: true, value: 'Axis' },
+          { name: 'Edge', isCurrent: false, value: 'Edge' },
+        ],
       },
       axis: {
-        required: true,
+        required: (commandContext) =>
+          ['Axis'].includes(
+            commandContext.argumentsToSubmit.axisOrEdge as string
+          ),
+        inputType: 'options',
+        options: [
+          { name: 'X Axis', isCurrent: true, value: 'X' },
+          { name: 'Y Axis', isCurrent: false, value: 'Y' },
+        ],
+      },
+      edge: {
+        required: (commandContext) =>
+          ['Edge'].includes(
+            commandContext.argumentsToSubmit.axisOrEdge as string
+          ),
         inputType: 'selection',
         selectionTypes: ['segment', 'sweepEdge', 'edgeCutEdge'],
         multiple: false,

src/lib/commandBarConfigs/validators.ts

@@ -68,7 +68,7 @@ export const revolveAxisValidator = async ({
   }
 
   const sketchSelection = artifact.pathId
-  let edgeSelection = data.axis.graphSelections[0].artifact?.id
+  let edgeSelection = data.edge.graphSelections[0].artifact?.id
 
   if (!sketchSelection) {
     return 'Unable to revolve, sketch is missing'
@@ -101,7 +101,7 @@ export const revolveAxisValidator = async ({
     return true
   } else {
     // return error message for the toast
-    return 'Unable to revolve with selected axis'
+    return 'Unable to revolve with selected edge'
   }
 }
 

src/lib/constants.ts

@@ -53,6 +53,7 @@ export const KCL_DEFAULT_CONSTANT_PREFIXES = {
   SKETCH: 'sketch',
   EXTRUDE: 'extrude',
   LOFT: 'loft',
+  SWEEP: 'sweep',
   SHELL: 'shell',
   SEGMENT: 'seg',
   REVOLVE: 'revolve',

src/lib/createMachineCommand.ts

@@ -15,6 +15,7 @@ import {
   StateMachineCommandSetSchema,
 } from './commandTypes'
 import { DEV } from 'env'
+import { IS_NIGHTLY_OR_DEBUG } from 'routes/Settings'
 
 interface CreateMachineCommandProps<
   T extends AnyStateMachine,
@@ -84,7 +85,7 @@ export function createMachineCommand<
   } else if ('status' in commandConfig) {
     const { status } = commandConfig
     if (status === 'inactive') return null
-    if (status === 'development' && !DEV) return null
+    if (status === 'development' && !(DEV || IS_NIGHTLY_OR_DEBUG)) return null
   }
 
   const icon = ('icon' in commandConfig && commandConfig.icon) || undefined

src/lib/toolbar.ts

@@ -8,6 +8,7 @@ import {
   modelingMachine,
   pipeHasCircle,
 } from 'machines/modelingMachine'
+import { IS_NIGHTLY_OR_DEBUG } from 'routes/Settings'
 import { EventFrom, StateFrom } from 'xstate'
 
 export type ToolbarModeName = 'modeling' | 'sketching'
@@ -103,7 +104,7 @@ export const toolbarConfig: Record<ToolbarModeName, ToolbarMode> = {
             data: { name: 'Revolve', groupId: 'modeling' },
           }),
         icon: 'revolve',
-        status: DEV ? 'available' : 'kcl-only',
+        status: DEV || IS_NIGHTLY_OR_DEBUG ? 'available' : 'kcl-only',
         title: 'Revolve',
         hotkey: 'R',
         description:
@@ -118,17 +119,21 @@ export const toolbarConfig: Record<ToolbarModeName, ToolbarMode> = {
       },
       {
         id: 'sweep',
-        onClick: () => console.error('Sweep not yet implemented'),
+        onClick: ({ commandBarSend }) =>
+          commandBarSend({
+            type: 'Find and select command',
+            data: { name: 'Sweep', groupId: 'modeling' },
+          }),
         icon: 'sweep',
-        status: 'unavailable',
+        status: DEV || IS_NIGHTLY_OR_DEBUG ? 'available' : 'kcl-only',
         title: 'Sweep',
         hotkey: 'W',
         description:
           'Create a 3D body by moving a sketch region along an arbitrary path.',
         links: [
           {
-            label: 'GitHub discussion',
-            url: 'https://github.com/KittyCAD/modeling-app/discussions/498',
+            label: 'KCL docs',
+            url: 'https://zoo.dev/docs/kcl/sweep',
           },
         ],
       },
@@ -161,7 +166,7 @@ export const toolbarConfig: Record<ToolbarModeName, ToolbarMode> = {
             data: { name: 'Fillet', groupId: 'modeling' },
           }),
         icon: 'fillet3d',
-        status: DEV ? 'available' : 'kcl-only',
+        status: DEV || IS_NIGHTLY_OR_DEBUG ? 'available' : 'kcl-only',
         title: 'Fillet',
         hotkey: 'F',
         description: 'Round the edges of a 3D solid.',

src/lib/utils.ts

@@ -345,7 +345,7 @@ export function onDragNumberCalculation(text: string, e: MouseEvent) {
   )
   const newVal = roundOff(addition, precision)
 
-  if (isNaN(newVal)) {
+  if (Number.isNaN(newVal)) {
     return
   }
 

src/machines/modelingMachine.ts

@@ -45,6 +45,7 @@ import {
 import { revolveSketch } from 'lang/modifyAst/addRevolve'
 import {
   addOffsetPlane,
+  addSweep,
   deleteFromSelection,
   extrudeSketch,
   loftSketches,
@@ -266,6 +267,7 @@ export type ModelingMachineEvent =
   | { type: 'Export'; data: ModelingCommandSchema['Export'] }
   | { type: 'Make'; data: ModelingCommandSchema['Make'] }
   | { type: 'Extrude'; data?: ModelingCommandSchema['Extrude'] }
+  | { type: 'Sweep'; data?: ModelingCommandSchema['Sweep'] }
   | { type: 'Loft'; data?: ModelingCommandSchema['Loft'] }
   | { type: 'Shell'; data?: ModelingCommandSchema['Shell'] }
   | { type: 'Revolve'; data?: ModelingCommandSchema['Revolve'] }
@@ -685,7 +687,7 @@ export const modelingMachine = setup({
       if (event.type !== 'Revolve') return
       ;(async () => {
         if (!event.data) return
-        const { selection, angle, axis } = event.data
+        const { selection, angle, axis, edge, axisOrEdge } = event.data
         let ast = kclManager.ast
         if (
           'variableName' in angle &&
@@ -710,7 +712,9 @@ export const modelingMachine = setup({
           'variableName' in angle
             ? angle.variableIdentifierAst
             : angle.valueAst,
-          axis
+          axisOrEdge,
+          axis,
+          edge
         )
         if (trap(revolveSketchRes)) return
         const { modifiedAst, pathToRevolveArg } = revolveSketchRes
@@ -1542,6 +1546,66 @@ export const modelingMachine = setup({
         }
       }
     ),
+    sweepAstMod: fromPromise(
+      async ({
+        input,
+      }: {
+        input: ModelingCommandSchema['Sweep'] | undefined
+      }) => {
+        if (!input) return new Error('No input provided')
+        // Extract inputs
+        const ast = kclManager.ast
+        const { profile, path } = input
+
+        // Find the profile declaration
+        const profileNodePath = getNodePathFromSourceRange(
+          ast,
+          profile.graphSelections[0].codeRef.range
+        )
+        const profileNode = getNodeFromPath<VariableDeclarator>(
+          ast,
+          profileNodePath,
+          'VariableDeclarator'
+        )
+        if (err(profileNode)) {
+          return new Error("Couldn't parse profile selection")
+        }
+        const profileDeclarator = profileNode.node
+
+        // Find the path declaration
+        const pathNodePath = getNodePathFromSourceRange(
+          ast,
+          path.graphSelections[0].codeRef.range
+        )
+        const pathNode = getNodeFromPath<VariableDeclarator>(
+          ast,
+          pathNodePath,
+          'VariableDeclarator'
+        )
+        if (err(pathNode)) {
+          return new Error("Couldn't parse path selection")
+        }
+        const pathDeclarator = pathNode.node
+
+        // Perform the sweep
+        const sweepRes = addSweep(ast, profileDeclarator, pathDeclarator)
+        const updateAstResult = await kclManager.updateAst(
+          sweepRes.modifiedAst,
+          true,
+          {
+            focusPath: [sweepRes.pathToNode],
+          }
+        )
+
+        await codeManager.updateEditorWithAstAndWriteToFile(
+          updateAstResult.newAst
+        )
+
+        if (updateAstResult?.selections) {
+          editorManager.selectRange(updateAstResult?.selections)
+        }
+      }
+    ),
     loftAstMod: fromPromise(
       async ({
         input,
@@ -1737,6 +1801,11 @@ export const modelingMachine = setup({
           reenter: false,
         },
 
+        Sweep: {
+          target: 'Applying sweep',
+          reenter: true,
+        },
+
         Loft: {
           target: 'Applying loft',
           reenter: true,
@@ -2529,6 +2598,19 @@ export const modelingMachine = setup({
       },
     },
 
+    'Applying sweep': {
+      invoke: {
+        src: 'sweepAstMod',
+        id: 'sweepAstMod',
+        input: ({ event }) => {
+          if (event.type !== 'Sweep') return undefined
+          return event.data
+        },
+        onDone: ['idle'],
+        onError: ['idle'],
+      },
+    },
+
     'Applying loft': {
       invoke: {
         src: 'loftAstMod',

src/routes/Onboarding/Export.tsx

@@ -41,13 +41,13 @@ export default function Export() {
             export to almost any CAD software.
           </p>
           <p className="my-4">
-            Our teammate David is working on the file format, check out{' '}
+            Our teammate Katie is working on the file format, check out{' '}
             <a
-              href="https://www.youtube.com/watch?v=8SuW0qkYCZo"
+              href="https://github.com/KhronosGroup/glTF/pull/2343"
               target="_blank"
               rel="noreferrer noopener"
             >
-              his talk with the Metaverse Standards Forum
+              her standards proposal on GitHub
             </a>
             !
           </p>

src/routes/Settings.tsx

@@ -32,6 +32,8 @@ export const PACKAGE_NAME = isDesktop()
 
 export const IS_NIGHTLY = PACKAGE_NAME.indexOf('-nightly') > -1
 
+export const IS_NIGHTLY_OR_DEBUG = IS_NIGHTLY || APP_VERSION === '0.0.0'
+
 export function getReleaseUrl(version: string = APP_VERSION) {
   return `https://github.com/KittyCAD/modeling-app/releases/tag/${
     IS_NIGHTLY ? 'nightly-' : ''

src/wasm-lib/kcl-to-core/src/conn_mock_core.rs

@@ -502,4 +502,6 @@ impl kcl_lib::EngineManager for EngineConnection {
             })),
         }
     }
+
+    async fn close(&self) {}
 }

src/wasm-lib/kcl/src/engine/conn.rs

@@ -37,9 +37,10 @@ enum SocketHealth {
 }
 
 type WebSocketTcpWrite = futures::stream::SplitSink<tokio_tungstenite::WebSocketStream<reqwest::Upgraded>, WsMsg>;
-#[derive(Debug, Clone)]
+#[derive(Debug)]
 pub struct EngineConnection {
     engine_req_tx: mpsc::Sender<ToEngineReq>,
+    shutdown_tx: mpsc::Sender<()>,
     responses: Arc<DashMap<uuid::Uuid, WebSocketResponse>>,
     pending_errors: Arc<Mutex<Vec<String>>>,
     #[allow(dead_code)]
@@ -130,21 +131,49 @@ struct ToEngineReq {
 
 impl EngineConnection {
     /// Start waiting for incoming engine requests, and send each one over the WebSocket to the engine.
-    async fn start_write_actor(mut tcp_write: WebSocketTcpWrite, mut engine_req_rx: mpsc::Receiver<ToEngineReq>) {
-        while let Some(req) = engine_req_rx.recv().await {
-            let ToEngineReq { req, request_sent } = req;
-            let res = if let WebSocketRequest::ModelingCmdReq(ModelingCmdReq {
-                cmd: ModelingCmd::ImportFiles { .. },
-                cmd_id: _,
-            }) = &req
-            {
-                // Send it as binary.
-                Self::inner_send_to_engine_binary(req, &mut tcp_write).await
-            } else {
-                Self::inner_send_to_engine(req, &mut tcp_write).await
-            };
-            let _ = request_sent.send(res);
+    async fn start_write_actor(
+        mut tcp_write: WebSocketTcpWrite,
+        mut engine_req_rx: mpsc::Receiver<ToEngineReq>,
+        mut shutdown_rx: mpsc::Receiver<()>,
+    ) {
+        loop {
+            tokio::select! {
+                maybe_req = engine_req_rx.recv() => {
+                    match maybe_req {
+                        Some(ToEngineReq { req, request_sent }) => {
+                            // Decide whether to send as binary or text,
+                            // then send to the engine.
+                            let res = if let WebSocketRequest::ModelingCmdReq(ModelingCmdReq {
+                                cmd: ModelingCmd::ImportFiles { .. },
+                                cmd_id: _,
+                            }) = &req
+                            {
+                                Self::inner_send_to_engine_binary(req, &mut tcp_write).await
+                            } else {
+                                Self::inner_send_to_engine(req, &mut tcp_write).await
+                            };
+
+                            // Let the caller know we’ve sent the request (ok or error).
+                            let _ = request_sent.send(res);
+                        }
+                        None => {
+                            // The engine_req_rx channel has closed, so no more requests.
+                            // We'll gracefully exit the loop and close the engine.
+                            break;
+                        }
+                    }
+                },
+
+                // If we get a shutdown signal, close the engine immediately and return.
+                _ = shutdown_rx.recv() => {
+                    let _ = Self::inner_close_engine(&mut tcp_write).await;
+                    return;
+                }
+            }
         }
+
+        // If we exit the loop (e.g. engine_req_rx was closed),
+        // still gracefully close the engine before returning.
         let _ = Self::inner_close_engine(&mut tcp_write).await;
     }
 
@@ -194,7 +223,8 @@ impl EngineConnection {
 
         let (tcp_write, tcp_read) = ws_stream.split();
         let (engine_req_tx, engine_req_rx) = mpsc::channel(10);
-        tokio::task::spawn(Self::start_write_actor(tcp_write, engine_req_rx));
+        let (shutdown_tx, shutdown_rx) = mpsc::channel(1);
+        tokio::task::spawn(Self::start_write_actor(tcp_write, engine_req_rx, shutdown_rx));
 
         let mut tcp_read = TcpRead { stream: tcp_read };
 
@@ -304,6 +334,7 @@ impl EngineConnection {
 
         Ok(EngineConnection {
             engine_req_tx,
+            shutdown_tx,
             tcp_read_handle: Arc::new(TcpReadHandle {
                 handle: Arc::new(tcp_read_handle),
             }),
@@ -484,4 +515,15 @@ impl EngineManager for EngineConnection {
     fn get_session_data(&self) -> Option<ModelingSessionData> {
         self.session_data.lock().unwrap().clone()
     }
+
+    async fn close(&self) {
+        let _ = self.shutdown_tx.send(()).await;
+        loop {
+            if let Ok(guard) = self.socket_health.lock() {
+                if *guard == SocketHealth::Inactive {
+                    return;
+                }
+            }
+        }
+    }
 }

src/wasm-lib/kcl/src/engine/conn_mock.rs

@@ -160,4 +160,6 @@ impl crate::engine::EngineManager for EngineConnection {
             })),
         }
     }
+
+    async fn close(&self) {}
 }

src/wasm-lib/kcl/src/engine/conn_wasm.rs

@@ -267,4 +267,7 @@ impl crate::engine::EngineManager for EngineConnection {
 
         Ok(ws_result)
     }
+
+    // maybe we can actually impl this here? not sure how atm.
+    async fn close(&self) {}
 }

src/wasm-lib/kcl/src/engine/mod.rs

@@ -600,6 +600,9 @@ pub trait EngineManager: std::fmt::Debug + Send + Sync + 'static {
     fn get_session_data(&self) -> Option<ModelingSessionData> {
         None
     }
+
+    /// Close the engine connection and wait for it to finish.
+    async fn close(&self);
 }
 
 #[derive(Debug, Hash, Eq, Clone, Deserialize, Serialize, PartialEq, ts_rs::TS, JsonSchema)]

src/wasm-lib/kcl/src/execution/mod.rs

@@ -2013,10 +2013,13 @@ impl ExecutorContext {
         // AND if we aren't in wasm it doesn't really matter.
         Ok(())
     }
-    // Given an old ast, old program memory and new ast, find the parts of the code that need to be
-    // re-executed.
-    // This function should never error, because in the case of any internal error, we should just pop
-    // the cache.
+    /// Given an old ast, old program memory and new ast, find the parts of the code that need to be
+    /// re-executed.
+    /// This function should never error, because in the case of any internal error, we should just pop
+    /// the cache.
+    ///
+    /// Returns `None` when there are no changes to the program, i.e. it is
+    /// fully cached.
     pub async fn get_changed_program(&self, info: CacheInformation) -> Option<CacheResult> {
         let Some(old) = info.old else {
             // We have no old info, we need to re-execute the whole thing.
@@ -2137,7 +2140,7 @@ impl ExecutorContext {
                 }
             }
             std::cmp::Ordering::Equal => {
-                // currently unreachable, but lets pretend like the code
+                // currently unreachable, but let's pretend like the code
                 // above can do something meaningful here for when we get
                 // to diffing and yanking chunks of the program apart.
 
@@ -2236,7 +2239,10 @@ impl ExecutorContext {
                 )
             })?;
         // Move the artifact commands to simplify cache management.
-        exec_state.global.artifact_commands = self.engine.take_artifact_commands();
+        exec_state
+            .global
+            .artifact_commands
+            .extend(self.engine.take_artifact_commands());
         let session_data = self.engine.get_session_data();
         Ok(session_data)
     }
@@ -2626,6 +2632,10 @@ impl ExecutorContext {
 
         self.prepare_snapshot().await
     }
+
+    pub async fn close(&self) {
+        self.engine.close().await;
+    }
 }
 
 /// For each argument given,

src/wasm-lib/kcl/src/simulation_tests.rs

@@ -1755,24 +1755,3 @@ mod array_elem_pop_fail {
         super::execute(TEST_NAME, false).await
     }
 }
-mod array_length {
-    const TEST_NAME: &str = "array_length";
-
-    /// Test parsing KCL.
-    #[test]
-    fn parse() {
-        super::parse(TEST_NAME)
-    }
-
-    /// Test that parsing and unparsing KCL produces the original KCL input.
-    #[test]
-    fn unparse() {
-        super::unparse(TEST_NAME)
-    }
-
-    /// Test that KCL is executed correctly.
-    #[tokio::test(flavor = "multi_thread")]
-    async fn kcl_test_execute() {
-        super::execute(TEST_NAME, false).await
-    }
-}

src/wasm-lib/kcl/src/std/array.rs

@@ -308,40 +308,3 @@ pub async fn pop(_exec_state: &mut ExecState, args: Args) -> Result<KclValue, Kc
 
     inner_pop(array, &args).await
 }
-
-/// Get the length of an array.
-///
-/// Returns the number of elements in an array.
-///
-/// ```no_run
-/// arr = [1, 2, 3]
-/// length = len(arr)
-/// assertEqual(length, 3, 0.00001, "The length of the array is 3")
-/// ```
-#[stdlib {
-    name = "len",
-    keywords = true,
-    unlabeled_first = true,
-    arg_docs = {
-        array = "The array to get the length of.",
-    }
-}]
-async fn inner_len(array: Vec<KclValue>, args: &Args) -> Result<KclValue, KclError> {
-    Ok(KclValue::Number {
-        value: array.len() as f64,
-        meta: vec![args.source_range.into()],
-    })
-}
-
-pub async fn len(_exec_state: &mut ExecState, args: Args) -> Result<KclValue, KclError> {
-    let val = args.get_unlabeled_kw_arg("array")?;
-    let meta = vec![args.source_range];
-    let KclValue::Array { value: array, meta: _ } = val else {
-        let actual_type = val.human_friendly_type();
-        return Err(KclError::Semantic(KclErrorDetails {
-            source_ranges: meta,
-            message: format!("You can't get the length of a value of type {actual_type}, only an array"),
-        }));
-    };
-    inner_len(array, &args).await
-}

src/wasm-lib/kcl/src/std/loft.rs

@@ -156,5 +156,8 @@ async fn inner_loft(
     .await?;
 
     // Using the first sketch as the base curve, idk we might want to change this later.
-    do_post_extrude(sketches[0].clone(), 0.0, exec_state, args).await
+    let mut sketch = sketches[0].clone();
+    // Override its id with the loft id so we can get its faces later
+    sketch.id = id;
+    do_post_extrude(sketch, 0.0, exec_state, args).await
 }

src/wasm-lib/kcl/src/std/mod.rs

@@ -108,7 +108,6 @@ lazy_static! {
         Box::new(crate::std::array::Reduce),
         Box::new(crate::std::array::Map),
         Box::new(crate::std::array::Push),
-        Box::new(crate::std::array::Len),
         Box::new(crate::std::array::Pop),
         Box::new(crate::std::chamfer::Chamfer),
         Box::new(crate::std::fillet::Fillet),

src/wasm-lib/kcl/src/test_server.rs

@@ -25,10 +25,12 @@ pub async fn execute_and_snapshot(
 ) -> Result<image::DynamicImage, ExecError> {
     let ctx = new_context(units, true, project_directory).await?;
     let program = Program::parse_no_errs(code).map_err(KclErrorWithOutputs::no_outputs)?;
-    do_execute_and_snapshot(&ctx, program)
+    let res = do_execute_and_snapshot(&ctx, program)
         .await
         .map(|(_state, snap)| snap)
-        .map_err(|err| err.error)
+        .map_err(|err| err.error);
+    ctx.close().await;
+    res
 }
 
 /// Executes a kcl program and takes a snapshot of the result.
@@ -39,14 +41,16 @@ pub async fn execute_and_snapshot_ast(
     project_directory: Option<PathBuf>,
 ) -> Result<(ProgramMemory, Vec<Operation>, Vec<ArtifactCommand>, image::DynamicImage), ExecErrorWithState> {
     let ctx = new_context(units, true, project_directory).await?;
-    do_execute_and_snapshot(&ctx, ast).await.map(|(state, snap)| {
+    let res = do_execute_and_snapshot(&ctx, ast).await.map(|(state, snap)| {
         (
             state.mod_local.memory,
             state.mod_local.operations,
             state.global.artifact_commands,
             snap,
         )
-    })
+    });
+    ctx.close().await;
+    res
 }
 
 pub async fn execute_and_snapshot_no_auth(
@@ -56,10 +60,12 @@ pub async fn execute_and_snapshot_no_auth(
 ) -> Result<image::DynamicImage, ExecError> {
     let ctx = new_context(units, false, project_directory).await?;
     let program = Program::parse_no_errs(code).map_err(KclErrorWithOutputs::no_outputs)?;
-    do_execute_and_snapshot(&ctx, program)
+    let res = do_execute_and_snapshot(&ctx, program)
         .await
         .map(|(_state, snap)| snap)
-        .map_err(|err| err.error)
+        .map_err(|err| err.error);
+    ctx.close().await;
+    res
 }
 
 async fn do_execute_and_snapshot(
@@ -80,6 +86,9 @@ async fn do_execute_and_snapshot(
         .map_err(|e| ExecError::BadPng(e.to_string()))
         .and_then(|x| x.decode().map_err(|e| ExecError::BadPng(e.to_string())))
         .map_err(|err| ExecErrorWithState::new(err, exec_state.clone()))?;
+
+    ctx.close().await;
+
     Ok((exec_state, img))
 }
 

src/wasm-lib/kcl/tests/array_length/artifact_commands.snap

@@ -1,284 +0,0 @@
----
-source: kcl/src/simulation_tests.rs
-description: Artifact commands array_length.kcl
----
-[
-  {
-    "cmdId": "[uuid]",
-    "range": [
-      0,
-      0,
-      0
-    ],
-    "command": {
-      "type": "make_plane",
-      "origin": {
-        "x": 0.0,
-        "y": 0.0,
-        "z": 0.0
-      },
-      "x_axis": {
-        "x": 1.0,
-        "y": 0.0,
-        "z": 0.0
-      },
-      "y_axis": {
-        "x": 0.0,
-        "y": 1.0,
-        "z": 0.0
-      },
-      "size": 100.0,
-      "clobber": false,
-      "hide": true
-    }
-  },
-  {
-    "cmdId": "[uuid]",
-    "range": [
-      0,
-      0,
-      0
-    ],
-    "command": {
-      "type": "plane_set_color",
-      "plane_id": "[uuid]",
-      "color": {
-        "r": 0.7,
-        "g": 0.28,
-        "b": 0.28,
-        "a": 0.4
-      }
-    }
-  },
-  {
-    "cmdId": "[uuid]",
-    "range": [
-      0,
-      0,
-      0
-    ],
-    "command": {
-      "type": "make_plane",
-      "origin": {
-        "x": 0.0,
-        "y": 0.0,
-        "z": 0.0
-      },
-      "x_axis": {
-        "x": 0.0,
-        "y": 1.0,
-        "z": 0.0
-      },
-      "y_axis": {
-        "x": 0.0,
-        "y": 0.0,
-        "z": 1.0
-      },
-      "size": 100.0,
-      "clobber": false,
-      "hide": true
-    }
-  },
-  {
-    "cmdId": "[uuid]",
-    "range": [
-      0,
-      0,
-      0
-    ],
-    "command": {
-      "type": "plane_set_color",
-      "plane_id": "[uuid]",
-      "color": {
-        "r": 0.28,
-        "g": 0.7,
-        "b": 0.28,
-        "a": 0.4
-      }
-    }
-  },
-  {
-    "cmdId": "[uuid]",
-    "range": [
-      0,
-      0,
-      0
-    ],
-    "command": {
-      "type": "make_plane",
-      "origin": {
-        "x": 0.0,
-        "y": 0.0,
-        "z": 0.0
-      },
-      "x_axis": {
-        "x": 1.0,
-        "y": 0.0,
-        "z": 0.0
-      },
-      "y_axis": {
-        "x": 0.0,
-        "y": 0.0,
-        "z": 1.0
-      },
-      "size": 100.0,
-      "clobber": false,
-      "hide": true
-    }
-  },
-  {
-    "cmdId": "[uuid]",
-    "range": [
-      0,
-      0,
-      0
-    ],
-    "command": {
-      "type": "plane_set_color",
-      "plane_id": "[uuid]",
-      "color": {
-        "r": 0.28,
-        "g": 0.28,
-        "b": 0.7,
-        "a": 0.4
-      }
-    }
-  },
-  {
-    "cmdId": "[uuid]",
-    "range": [
-      0,
-      0,
-      0
-    ],
-    "command": {
-      "type": "make_plane",
-      "origin": {
-        "x": 0.0,
-        "y": 0.0,
-        "z": 0.0
-      },
-      "x_axis": {
-        "x": -1.0,
-        "y": 0.0,
-        "z": 0.0
-      },
-      "y_axis": {
-        "x": 0.0,
-        "y": 1.0,
-        "z": 0.0
-      },
-      "size": 100.0,
-      "clobber": false,
-      "hide": true
-    }
-  },
-  {
-    "cmdId": "[uuid]",
-    "range": [
-      0,
-      0,
-      0
-    ],
-    "command": {
-      "type": "make_plane",
-      "origin": {
-        "x": 0.0,
-        "y": 0.0,
-        "z": 0.0
-      },
-      "x_axis": {
-        "x": 0.0,
-        "y": -1.0,
-        "z": 0.0
-      },
-      "y_axis": {
-        "x": 0.0,
-        "y": 0.0,
-        "z": 1.0
-      },
-      "size": 100.0,
-      "clobber": false,
-      "hide": true
-    }
-  },
-  {
-    "cmdId": "[uuid]",
-    "range": [
-      0,
-      0,
-      0
-    ],
-    "command": {
-      "type": "make_plane",
-      "origin": {
-        "x": 0.0,
-        "y": 0.0,
-        "z": 0.0
-      },
-      "x_axis": {
-        "x": -1.0,
-        "y": 0.0,
-        "z": 0.0
-      },
-      "y_axis": {
-        "x": 0.0,
-        "y": 0.0,
-        "z": 1.0
-      },
-      "size": 100.0,
-      "clobber": false,
-      "hide": true
-    }
-  },
-  {
-    "cmdId": "[uuid]",
-    "range": [
-      0,
-      0,
-      0
-    ],
-    "command": {
-      "type": "edge_lines_visible",
-      "hidden": false
-    }
-  },
-  {
-    "cmdId": "[uuid]",
-    "range": [
-      0,
-      0,
-      0
-    ],
-    "command": {
-      "type": "set_scene_units",
-      "unit": "mm"
-    }
-  },
-  {
-    "cmdId": "[uuid]",
-    "range": [
-      0,
-      0,
-      0
-    ],
-    "command": {
-      "type": "object_visible",
-      "object_id": "[uuid]",
-      "hidden": true
-    }
-  },
-  {
-    "cmdId": "[uuid]",
-    "range": [
-      0,
-      0,
-      0
-    ],
-    "command": {
-      "type": "object_visible",
-      "object_id": "[uuid]",
-      "hidden": true
-    }
-  }
-]

src/wasm-lib/kcl/tests/array_length/ast.snap

@@ -1,282 +0,0 @@
----
-source: kcl/src/simulation_tests.rs
-description: Result of parsing array_length.kcl
----
-{
-  "Ok": {
-    "body": [
-      {
-        "declaration": {
-          "end": 15,
-          "id": {
-            "end": 3,
-            "name": "arr",
-            "start": 0,
-            "type": "Identifier"
-          },
-          "init": {
-            "elements": [
-              {
-                "end": 8,
-                "raw": "1",
-                "start": 7,
-                "type": "Literal",
-                "type": "Literal",
-                "value": 1.0
-              },
-              {
-                "end": 11,
-                "raw": "2",
-                "start": 10,
-                "type": "Literal",
-                "type": "Literal",
-                "value": 2.0
-              },
-              {
-                "end": 14,
-                "raw": "3",
-                "start": 13,
-                "type": "Literal",
-                "type": "Literal",
-                "value": 3.0
-              }
-            ],
-            "end": 15,
-            "start": 6,
-            "type": "ArrayExpression",
-            "type": "ArrayExpression"
-          },
-          "start": 0,
-          "type": "VariableDeclarator"
-        },
-        "end": 15,
-        "kind": "const",
-        "start": 0,
-        "type": "VariableDeclaration",
-        "type": "VariableDeclaration"
-      },
-      {
-        "declaration": {
-          "end": 34,
-          "id": {
-            "end": 23,
-            "name": "arr_len",
-            "start": 16,
-            "type": "Identifier"
-          },
-          "init": {
-            "arguments": [
-              {
-                "end": 33,
-                "name": "arr",
-                "start": 30,
-                "type": "Identifier",
-                "type": "Identifier"
-              }
-            ],
-            "callee": {
-              "end": 29,
-              "name": "len",
-              "start": 26,
-              "type": "Identifier"
-            },
-            "end": 34,
-            "start": 26,
-            "type": "CallExpression",
-            "type": "CallExpression"
-          },
-          "start": 16,
-          "type": "VariableDeclarator"
-        },
-        "end": 34,
-        "kind": "const",
-        "start": 16,
-        "type": "VariableDeclaration",
-        "type": "VariableDeclaration"
-      },
-      {
-        "end": 99,
-        "expression": {
-          "arguments": [
-            {
-              "end": 54,
-              "name": "arr_len",
-              "start": 47,
-              "type": "Identifier",
-              "type": "Identifier"
-            },
-            {
-              "end": 57,
-              "raw": "3",
-              "start": 56,
-              "type": "Literal",
-              "type": "Literal",
-              "value": 3.0
-            },
-            {
-              "end": 66,
-              "raw": "0.00001",
-              "start": 59,
-              "type": "Literal",
-              "type": "Literal",
-              "value": 0.00001
-            },
-            {
-              "end": 98,
-              "raw": "\"The length of the array is 3\"",
-              "start": 68,
-              "type": "Literal",
-              "type": "Literal",
-              "value": "The length of the array is 3"
-            }
-          ],
-          "callee": {
-            "end": 46,
-            "name": "assertEqual",
-            "start": 35,
-            "type": "Identifier"
-          },
-          "end": 99,
-          "start": 35,
-          "type": "CallExpression",
-          "type": "CallExpression"
-        },
-        "start": 35,
-        "type": "ExpressionStatement",
-        "type": "ExpressionStatement"
-      },
-      {
-        "declaration": {
-          "end": 115,
-          "id": {
-            "end": 110,
-            "name": "arr_empty",
-            "start": 101,
-            "type": "Identifier"
-          },
-          "init": {
-            "elements": [],
-            "end": 115,
-            "start": 113,
-            "type": "ArrayExpression",
-            "type": "ArrayExpression"
-          },
-          "start": 101,
-          "type": "VariableDeclarator"
-        },
-        "end": 115,
-        "kind": "const",
-        "start": 101,
-        "type": "VariableDeclaration",
-        "type": "VariableDeclaration"
-      },
-      {
-        "declaration": {
-          "end": 142,
-          "id": {
-            "end": 125,
-            "name": "len_empty",
-            "start": 116,
-            "type": "Identifier"
-          },
-          "init": {
-            "arguments": [
-              {
-                "end": 141,
-                "name": "arr_empty",
-                "start": 132,
-                "type": "Identifier",
-                "type": "Identifier"
-              }
-            ],
-            "callee": {
-              "end": 131,
-              "name": "len",
-              "start": 128,
-              "type": "Identifier"
-            },
-            "end": 142,
-            "start": 128,
-            "type": "CallExpression",
-            "type": "CallExpression"
-          },
-          "start": 116,
-          "type": "VariableDeclarator"
-        },
-        "end": 142,
-        "kind": "const",
-        "start": 116,
-        "type": "VariableDeclaration",
-        "type": "VariableDeclaration"
-      },
-      {
-        "end": 209,
-        "expression": {
-          "arguments": [
-            {
-              "end": 164,
-              "name": "len_empty",
-              "start": 155,
-              "type": "Identifier",
-              "type": "Identifier"
-            },
-            {
-              "end": 167,
-              "raw": "0",
-              "start": 166,
-              "type": "Literal",
-              "type": "Literal",
-              "value": 0.0
-            },
-            {
-              "end": 176,
-              "raw": "0.00001",
-              "start": 169,
-              "type": "Literal",
-              "type": "Literal",
-              "value": 0.00001
-            },
-            {
-              "end": 208,
-              "raw": "\"The length of the array is 0\"",
-              "start": 178,
-              "type": "Literal",
-              "type": "Literal",
-              "value": "The length of the array is 0"
-            }
-          ],
-          "callee": {
-            "end": 154,
-            "name": "assertEqual",
-            "start": 143,
-            "type": "Identifier"
-          },
-          "end": 209,
-          "start": 143,
-          "type": "CallExpression",
-          "type": "CallExpression"
-        },
-        "start": 143,
-        "type": "ExpressionStatement",
-        "type": "ExpressionStatement"
-      }
-    ],
-    "end": 210,
-    "nonCodeMeta": {
-      "nonCodeNodes": {
-        "2": [
-          {
-            "end": 101,
-            "start": 99,
-            "type": "NonCodeNode",
-            "value": {
-              "type": "newLine"
-            }
-          }
-        ]
-      },
-      "startNodes": []
-    },
-    "start": 0
-  }
-}

src/wasm-lib/kcl/tests/array_length/input.kcl

@@ -1,7 +0,0 @@
-arr = [1, 2, 3]
-arr_len = len(arr)
-assertEqual(arr_len, 3, 0.00001, "The length of the array is 3")
-
-arr_empty = []
-len_empty = len(arr_empty)
-assertEqual(len_empty, 0, 0.00001, "The length of the array is 0")

src/wasm-lib/kcl/tests/array_length/ops.snap

@@ -1,5 +0,0 @@
----
-source: kcl/src/simulation_tests.rs
-description: Operations executed array_length.kcl
----
-[]

src/wasm-lib/kcl/tests/array_length/program_memory.snap

@@ -1,127 +0,0 @@
----
-source: kcl/src/simulation_tests.rs
-description: Program memory after executing array_length.kcl
----
-{
-  "environments": [
-    {
-      "bindings": {
-        "HALF_TURN": {
-          "type": "Number",
-          "value": 180.0,
-          "__meta": []
-        },
-        "QUARTER_TURN": {
-          "type": "Number",
-          "value": 90.0,
-          "__meta": []
-        },
-        "THREE_QUARTER_TURN": {
-          "type": "Number",
-          "value": 270.0,
-          "__meta": []
-        },
-        "ZERO": {
-          "type": "Number",
-          "value": 0.0,
-          "__meta": []
-        },
-        "arr": {
-          "type": "Array",
-          "value": [
-            {
-              "type": "Number",
-              "value": 1.0,
-              "__meta": [
-                {
-                  "sourceRange": [
-                    7,
-                    8,
-                    0
-                  ]
-                }
-              ]
-            },
-            {
-              "type": "Number",
-              "value": 2.0,
-              "__meta": [
-                {
-                  "sourceRange": [
-                    10,
-                    11,
-                    0
-                  ]
-                }
-              ]
-            },
-            {
-              "type": "Number",
-              "value": 3.0,
-              "__meta": [
-                {
-                  "sourceRange": [
-                    13,
-                    14,
-                    0
-                  ]
-                }
-              ]
-            }
-          ],
-          "__meta": [
-            {
-              "sourceRange": [
-                6,
-                15,
-                0
-              ]
-            }
-          ]
-        },
-        "arr_empty": {
-          "type": "Array",
-          "value": [],
-          "__meta": [
-            {
-              "sourceRange": [
-                113,
-                115,
-                0
-              ]
-            }
-          ]
-        },
-        "arr_len": {
-          "type": "Number",
-          "value": 3.0,
-          "__meta": [
-            {
-              "sourceRange": [
-                26,
-                34,
-                0
-              ]
-            }
-          ]
-        },
-        "len_empty": {
-          "type": "Number",
-          "value": 0.0,
-          "__meta": [
-            {
-              "sourceRange": [
-                128,
-                142,
-                0
-              ]
-            }
-          ]
-        }
-      },
-      "parent": null
-    }
-  ],
-  "currentEnv": 0,
-  "return": null
-}

src/wasm-lib/tests/executor/cache.rs

@@ -1,14 +1,18 @@
 //! Cache testing framework.
 
 use anyhow::Result;
-use kcl_lib::ExecError;
+use kcl_lib::{ExecError, ExecState};
 
+#[derive(Debug)]
 struct Variation<'a> {
     code: &'a str,
     settings: &'a kcl_lib::ExecutorSettings,
 }
 
-async fn cache_test(test_name: &str, variations: Vec<Variation<'_>>) -> Result<Vec<(String, image::DynamicImage)>> {
+async fn cache_test(
+    test_name: &str,
+    variations: Vec<Variation<'_>>,
+) -> Result<Vec<(String, image::DynamicImage, ExecState)>> {
     let first = variations
         .first()
         .ok_or_else(|| anyhow::anyhow!("No variations provided for test '{}'", test_name))?;
@@ -42,7 +46,7 @@ async fn cache_test(test_name: &str, variations: Vec<Variation<'_>>) -> Result<V
         // Save the snapshot.
         let path = crate::assert_out(&format!("cache_{}_{}", test_name, index), &img);
 
-        img_results.push((path, img));
+        img_results.push((path, img, exec_state.clone()));
 
         // Prepare the last state.
         old_ast_state = Some(kcl_lib::OldAstState {
@@ -52,6 +56,8 @@ async fn cache_test(test_name: &str, variations: Vec<Variation<'_>>) -> Result<V
         });
     }
 
+    ctx.close().await;
+
     Ok(img_results)
 }
 
@@ -214,3 +220,47 @@ async fn kcl_test_cache_change_highlight_edges_changes_visual() {
 
     assert!(first.1 != second.1);
 }
+
+#[tokio::test(flavor = "multi_thread")]
+async fn kcl_test_cache_add_line_preserves_artifact_commands() {
+    let code = r#"sketch001 = startSketchOn('XY')
+  |> startProfileAt([5.5229, 5.25217], %)
+  |> line([10.50433, -1.19122], %)
+  |> line([8.01362, -5.48731], %)
+  |> line([-1.02877, -6.76825], %)
+  |> line([-11.53311, 2.81559], %)
+  |> close(%)
+"#;
+    // Use a new statement; don't extend the prior pipeline.  This allows us to
+    // detect a prefix.
+    let code_with_extrude = code.to_owned()
+        + r#"
+extrude(4, sketch001)
+"#;
+
+    let result = cache_test(
+        "add_line_preserves_artifact_commands",
+        vec![
+            Variation {
+                code,
+                settings: &Default::default(),
+            },
+            Variation {
+                code: code_with_extrude.as_str(),
+                settings: &Default::default(),
+            },
+        ],
+    )
+    .await
+    .unwrap();
+
+    let first = result.first().unwrap();
+    let second = result.last().unwrap();
+
+    assert!(
+        first.2.global.artifact_commands.len() < second.2.global.artifact_commands.len(),
+        "Second should have all the artifact commands of the first, plus more. first={:?}, second={:?}",
+        first.2.global.artifact_commands.len(),
+        second.2.global.artifact_commands.len()
+    );
+}

src/wasm-lib/tests/executor/main.rs

@@ -1169,25 +1169,25 @@ async fn kcl_test_plumbus_fillets() {
   return sg
 }
 
-fn pentagon = (sideLen) => {
+fn pentagon = (len) => {
   sg = startSketchOn('XY')
-  |> startProfileAt([-sideLen / 2, -sideLen / 2], %)
-  |> angledLine({ angle: 0, length: sideLen }, %, $a)
+  |> startProfileAt([-len / 2, -len / 2], %)
+  |> angledLine({ angle: 0, length: len }, %, $a)
   |> angledLine({
        angle: segAng(a) + 180 - 108,
-       length: sideLen
+       length: len
      }, %, $b)
   |> angledLine({
        angle: segAng(b) + 180 - 108,
-       length: sideLen
+       length: len
      }, %, $c)
   |> angledLine({
        angle: segAng(c) + 180 - 108,
-       length: sideLen
+       length: len
      }, %, $d)
   |> angledLine({
        angle: segAng(d) + 180 - 108,
-       length: sideLen
+       length: len
      }, %)
 
   return sg
@@ -1653,17 +1653,17 @@ part001 = cube([0,0], 20)
 
 #[tokio::test(flavor = "multi_thread")]
 async fn kcl_test_duplicate_tags_should_error() {
-    let code = r#"fn triangle = (sideLen) => {
+    let code = r#"fn triangle = (len) => {
   return startSketchOn('XY')
-  |> startProfileAt([-sideLen / 2, -sideLen / 2], %)
-  |> angledLine({ angle: 0, length: sideLen }, %, $a)
+  |> startProfileAt([-len / 2, -len / 2], %)
+  |> angledLine({ angle: 0, length: len }, %, $a)
   |> angledLine({
        angle: segAng(a) + 120,
-       length: sideLen
+       length: len
      }, %, $b)
   |> angledLine({
        angle: segAng(b) + 120,
-       length: sideLen
+       length: len
      }, %, $a)
 }
 
@@ -1674,7 +1674,7 @@ let p = triangle(200)
     assert!(result.is_err());
     assert_eq!(
         result.err().unwrap().to_string(),
-        r#"value already defined: KclErrorDetails { source_ranges: [SourceRange([335, 337, 0]), SourceRange([350, 363, 0])], message: "Cannot redefine `a`" }"#
+        r#"value already defined: KclErrorDetails { source_ranges: [SourceRange([311, 313, 0]), SourceRange([326, 339, 0])], message: "Cannot redefine `a`" }"#
     );
 }