Merge branch 'main' into pierremtb/issue4472-Add-shell-point-and-click-operation-backup

* Add installation instructions for all platforms
Fixes #4511

* Typo

* Typo2

* Improve linux instructions, thanks @TomPridham

Co-authored-by: Tom Pridham <pridham.tom@gmail.com>

---------

Co-authored-by: Tom Pridham <pridham.tom@gmail.com>

.github/workflows/build-apps.yml

@@ -362,6 +362,17 @@ jobs:
       - name: List artifacts
         run: "ls -R out"
 
+      - name: Set more complete nightly release notes
+        if: ${{ env.IS_NIGHTLY == 'true' }}
+        run: |
+          # Note: preferred going this way instead of a full clone in the checkout step,
+          # see https://github.com/actions/checkout/issues/1471
+          git fetch --prune --unshallow --tags
+          export TAG="nightly-${VERSION}"
+          export PREVIOUS_TAG=$(git describe --tags --match="nightly-v[0-9]*" --abbrev=0)
+          export NOTES=$(./scripts/get-nightly-changelog.sh)
+          yarn files:set-notes
+
       - name: Authenticate to Google Cloud
         if: ${{ env.IS_NIGHTLY == 'true' }}
         uses: 'google-github-actions/auth@v2.1.7'
@@ -382,3 +393,18 @@ jobs:
           glob: '*'
           parent: false
           destination: 'dl.kittycad.io/releases/modeling-app/nightly'
+
+      - name: Invalidate bucket cache on latest*.yml and last_download.json files
+        if: ${{ env.IS_NIGHTLY == 'true' }}
+        run: yarn files:invalidate-bucket:nightly
+
+      - name: Tag nightly commit
+        if: ${{ env.IS_NIGHTLY == 'true' }}
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const { VERSION } = process.env          
+            const { owner, repo } = context.repo
+            const { sha } = context
+            const ref = `refs/tags/nightly-${VERSION}`
+            github.rest.git.createRef({ owner, repo, sha, ref })

.github/workflows/e2e-tests.yml

@@ -68,7 +68,7 @@ jobs:
     - name: Download Wasm Cache
       id: download-wasm
       if: needs.check-rust-changes.outputs.rust-changed == 'false'
-      uses: dawidd6/action-download-artifact@v6
+      uses: dawidd6/action-download-artifact@v7
       continue-on-error: true
       with:
         github_token: ${{secrets.GITHUB_TOKEN}}
@@ -255,7 +255,7 @@ jobs:
     - name: Download Wasm Cache
       id: download-wasm
       if: needs.check-rust-changes.outputs.rust-changed == 'false'
-      uses: dawidd6/action-download-artifact@v6
+      uses: dawidd6/action-download-artifact@v7
       continue-on-error: true
       with:
         github_token: ${{secrets.GITHUB_TOKEN}}

.github/workflows/publish-apps-release.yml

@@ -126,11 +126,7 @@ jobs:
           destination: 'dl.kittycad.io/releases/modeling-app'
 
       - name: Invalidate bucket cache on latest*.yml and last_download.json files
-        run: |
+        run: yarn files:invalidate-bucket
-          gcloud compute url-maps invalidate-cdn-cache dl-url-map --path="/releases/modeling-app/last_download.json" --async
-          gcloud compute url-maps invalidate-cdn-cache dl-url-map --path="/releases/modeling-app/latest-linux-arm64.yml" --async
-          gcloud compute url-maps invalidate-cdn-cache dl-url-map --path="/releases/modeling-app/latest-mac.yml" --async
-          gcloud compute url-maps invalidate-cdn-cache dl-url-map --path="/releases/modeling-app/latest.yml" --async
 
       - name: Upload release files to Github
         if: ${{ github.event_name == 'release' }}

.gitignore

@@ -61,6 +61,7 @@ Mac_App_Distribution.provisionprofile
 *.tsbuildinfo
 src/wasm-lib/pkg
 
+.eslintcache
 venv
 .vite/
 

.nvmrc

@@ -1 +1 @@
-v21.7.3
+v22.12.0

INSTALL.md

@@ -0,0 +1,43 @@
+# Setting Up Zoo Modeling App
+
+Compared to other CAD software, getting Zoo Modeling App up and running is quick and straightforward across platforms. It's about 100MB to download and is quick to install.
+
+## Windows
+
+1. Download the [Zoo Modeling App installer](https://zoo.dev/modeling-app/download) for Windows and for your processor type.
+
+2. Once downloaded, run the installer `Zoo Modeling App-{version}-{arch}-win.exe` which should take a few seconds.
+
+3. The installation happens at `C:\Program Files\Zoo Modeling App`. A shortcut in the start menu is also created so you can run the app easily by clicking on it.
+
+## macOS
+
+1. Download the [Zoo Modeling App installer](https://zoo.dev/modeling-app/download) for macOS and for your processor type.
+
+2. Once downloaded, open the disk image `Zoo Modeling App-{version}-{arch}-mac.dmg` and drag the applications to your `Applications` directory.
+
+3. You can then open your `Applications` directory and double-click on `Zoo Modeling App` to open.
+
+
+## Linux 
+
+1. Download the [Zoo Modeling App installer](https://zoo.dev/modeling-app/download) for Linux and for your processor type.
+
+2. Install the dependencies needed to run the [AppImage format](https://appimage.org/).
+    -  On Ubuntu, install the FUSE library with these commands in a terminal.
+       ```bash
+       sudo apt update
+       sudo apt install libfuse2
+       ```
+    - Optionally, follow [these steps](https://github.com/probonopd/go-appimage/blob/master/src/appimaged/README.md#initial-setup) to install `appimaged`. It is a daemon that makes interacting with AppImage files more seamless. 
+    - Once installed, copy the downloaded `Zoo Modeling App-{version}-{arch}-linux.AppImage` to the directory of your choice, for instance `~/Applications`.
+
+   - `appimaged` should automatically find it and make it executable. If not, run:
+     ```bash
+     chmod a+x ~/Applications/Zoo\ Modeling\ App-{version}-{arch}-linux.AppImage
+     ```
+
+3. You can double-click on the AppImage to run it, or in a terminal with this command:
+   ```bash
+    ~/Applications/Zoo\ Modeling\ App-{version}-{arch}-linux.AppImage
+   ```

README.md

@@ -99,7 +99,7 @@ yarn tron:start
 
 This will start the application and hot-reload on changes.
 
-Devtools can be opened with the usual Cmd/Ctrl-Shift-I.
+Devtools can be opened with the usual Cmd-Opt-I (Mac) or Ctrl-Shift-I (Linux and Windows).
 
 To build, run `yarn tron:package`.
 

docs/kcl/modules.md

@@ -12,7 +12,7 @@ to other modules.
 
 ```
 // util.kcl
-export fn increment = (x) => {
+export fn increment(x) {
   return x + 1
 }
 ```
@@ -37,11 +37,11 @@ Multiple functions can be exported in a file.
 
 ```
 // util.kcl
-export fn increment = (x) => {
+export fn increment(x) {
   return x + 1
 }
 
-export fn decrement = (x) => {
+export fn decrement(x) {
   return x - 1
 }
 ```

docs/kcl/types.md

@@ -54,7 +54,7 @@ We also have support for defining your own functions. Functions can take in any
 type of argument. Below is an example of the syntax:
 
 ```
-fn myFn = (x) => {
+fn myFn(x) {
   return x
 }
 ```
@@ -118,7 +118,7 @@ use the tag `rectangleSegmentA001` in any function or expression in the file.
 However if the code was written like this:
 
 ```
-fn rect = (origin) => {
+fn rect(origin) {
   return startSketchOn('XZ')
     |> startProfileAt(origin, %)
     |> angledLine([0, 191.26], %, $rectangleSegmentA001)
@@ -146,7 +146,7 @@ Tags are accessible through the sketch group they are declared in.
 For example the following code works.
 
 ```
-fn rect = (origin) => {
+fn rect(origin) {
   return startSketchOn('XZ')
     |> startProfileAt(origin, %)
     |> angledLine([0, 191.26], %, $rectangleSegmentA001)

docs/kcl/types/BinaryOperator.md

@@ -1,161 +0,0 @@
----
-title: "BinaryOperator"
-excerpt: ""
-layout: manual
----
-
-
-
-
-
-
-**This schema accepts exactly one of the following:**
-
-Add two numbers.
-
-**enum:** `+`
-
-
-
-
-
-
-
-
-----
-Subtract two numbers.
-
-**enum:** `-`
-
-
-
-
-
-
-
-
-----
-Multiply two numbers.
-
-**enum:** `*`
-
-
-
-
-
-
-
-
-----
-Divide two numbers.
-
-**enum:** `/`
-
-
-
-
-
-
-
-
-----
-Modulo two numbers.
-
-**enum:** `%`
-
-
-
-
-
-
-
-
-----
-Raise a number to a power.
-
-**enum:** `^`
-
-
-
-
-
-
-
-
-----
-Are two numbers equal?
-
-**enum:** `==`
-
-
-
-
-
-
-
-
-----
-Are two numbers not equal?
-
-**enum:** `!=`
-
-
-
-
-
-
-
-
-----
-Is left greater than right
-
-**enum:** `>`
-
-
-
-
-
-
-
-
-----
-Is left greater than or equal to right
-
-**enum:** `>=`
-
-
-
-
-
-
-
-
-----
-Is left less than right
-
-**enum:** `<`
-
-
-
-
-
-
-
-
-----
-Is left less than or equal to right
-
-**enum:** `<=`
-
-
-
-
-
-
-
-
-----
-
-
-
-

docs/kcl/types/BinaryPart.md

@@ -1,160 +0,0 @@
----
-title: "BinaryPart"
-excerpt: ""
-layout: manual
----
-
-
-
-
-
-
-**This schema accepts exactly one of the following:**
-
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `Literal`|  | No |
-| `value` |[`LiteralValue`](/docs/kcl/types/LiteralValue)|  | No |
-| `raw` |`string`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: [`Identifier`](/docs/kcl/types/Identifier)|  | No |
-| `name` |`string`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `BinaryExpression`|  | No |
-| `operator` |[`BinaryOperator`](/docs/kcl/types/BinaryOperator)|  | No |
-| `left` |[`BinaryPart`](/docs/kcl/types/BinaryPart)|  | No |
-| `right` |[`BinaryPart`](/docs/kcl/types/BinaryPart)|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `CallExpression`|  | No |
-| `callee` |[`Identifier`](/docs/kcl/types/Identifier)|  | No |
-| `arguments` |`[` [`Expr`](/docs/kcl/types/Expr) `]`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `UnaryExpression`|  | No |
-| `operator` |[`UnaryOperator`](/docs/kcl/types/UnaryOperator)|  | No |
-| `argument` |[`BinaryPart`](/docs/kcl/types/BinaryPart)|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `MemberExpression`|  | No |
-| `object` |[`MemberObject`](/docs/kcl/types/MemberObject)|  | No |
-| `property` |[`LiteralIdentifier`](/docs/kcl/types/LiteralIdentifier)|  | No |
-| `computed` |`boolean`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `IfExpression`|  | No |
-| `cond` |[`Expr`](/docs/kcl/types/Expr)|  | No |
-| `then_val` |[`Program`](/docs/kcl/types/Program)|  | No |
-| `else_ifs` |`[` [`ElseIf`](/docs/kcl/types/ElseIf) `]`|  | No |
-| `final_else` |[`Program`](/docs/kcl/types/Program)|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-
-
-

docs/kcl/types/BodyItem.md

@@ -1,97 +0,0 @@
----
-title: "BodyItem"
-excerpt: ""
-layout: manual
----
-
-
-
-
-
-
-**This schema accepts exactly one of the following:**
-
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `ImportStatement`|  | No |
-| `items` |`[` [`ImportItem`](/docs/kcl/types/ImportItem) `]`|  | No |
-| `path` |`string`|  | No |
-| `raw_path` |`string`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `ExpressionStatement`|  | No |
-| `expression` |[`Expr`](/docs/kcl/types/Expr)|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `VariableDeclaration`|  | No |
-| `declarations` |`[` [`VariableDeclarator`](/docs/kcl/types/VariableDeclarator) `]`|  | No |
-| `visibility` |[`ItemVisibility`](/docs/kcl/types/ItemVisibility)|  | No |
-| `kind` |[`VariableKind`](/docs/kcl/types/VariableKind)|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `ReturnStatement`|  | No |
-| `argument` |[`Expr`](/docs/kcl/types/Expr)|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-
-
-

docs/kcl/types/CommentStyle.md

@@ -1,41 +0,0 @@
----
-title: "CommentStyle"
-excerpt: ""
-layout: manual
----
-
-
-
-
-
-
-**This schema accepts exactly one of the following:**
-
-Like // foo
-
-**enum:** `line`
-
-
-
-
-
-
-
-
-----
-Like /* foo */
-
-**enum:** `block`
-
-
-
-
-
-
-
-
-----
-
-
-
-

docs/kcl/types/ElseIf.md

@@ -1,24 +0,0 @@
----
-title: "ElseIf"
-excerpt: ""
-layout: manual
----
-
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `cond` |[`Expr`](/docs/kcl/types/Expr)|  | No |
-| `then_val` |[`Program`](/docs/kcl/types/Program)|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-

docs/kcl/types/EnvironmentRef.md

@@ -1,16 +0,0 @@
----
-title: "EnvironmentRef"
-excerpt: "An index pointing to an environment."
-layout: manual
----
-
-An index pointing to an environment.
-
-**Type:** `integer` (`uint`)
-
-
-
-
-
-
-

docs/kcl/types/Expr.md

@@ -1,317 +0,0 @@
----
-title: "Expr"
-excerpt: "An expression can be evaluated to yield a single KCL value."
-layout: manual
----
-
-An expression can be evaluated to yield a single KCL value.
-
-
-
-
-
-**This schema accepts exactly one of the following:**
-
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `Literal`|  | No |
-| `value` |[`LiteralValue`](/docs/kcl/types/LiteralValue)| An expression can be evaluated to yield a single KCL value. | No |
-| `raw` |`string`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: [`Identifier`](/docs/kcl/types/Identifier)|  | No |
-| `name` |`string`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: [`TagDeclarator`](/docs/kcl/types#tag-declaration)|  | No |
-| `value` |`string`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `BinaryExpression`|  | No |
-| `operator` |[`BinaryOperator`](/docs/kcl/types/BinaryOperator)| An expression can be evaluated to yield a single KCL value. | No |
-| `left` |[`BinaryPart`](/docs/kcl/types/BinaryPart)| An expression can be evaluated to yield a single KCL value. | No |
-| `right` |[`BinaryPart`](/docs/kcl/types/BinaryPart)| An expression can be evaluated to yield a single KCL value. | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: [`FunctionExpression`](/docs/kcl/types/FunctionExpression)|  | No |
-| `params` |`[` [`Parameter`](/docs/kcl/types/Parameter) `]`|  | No |
-| `body` |[`Program`](/docs/kcl/types/Program)| An expression can be evaluated to yield a single KCL value. | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `CallExpression`|  | No |
-| `callee` |[`Identifier`](/docs/kcl/types/Identifier)| An expression can be evaluated to yield a single KCL value. | No |
-| `arguments` |`[` [`Expr`](/docs/kcl/types/Expr) `]`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `PipeExpression`|  | No |
-| `body` |`[` [`Expr`](/docs/kcl/types/Expr) `]`|  | No |
-| `nonCodeMeta` |[`NonCodeMeta`](/docs/kcl/types/NonCodeMeta)| An expression can be evaluated to yield a single KCL value. | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `PipeSubstitution`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `ArrayExpression`|  | No |
-| `elements` |`[` [`Expr`](/docs/kcl/types/Expr) `]`|  | No |
-| `nonCodeMeta` |[`NonCodeMeta`](/docs/kcl/types/NonCodeMeta)| An expression can be evaluated to yield a single KCL value. | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `ArrayRangeExpression`|  | No |
-| `startElement` |[`Expr`](/docs/kcl/types/Expr)| An expression can be evaluated to yield a single KCL value. | No |
-| `endElement` |[`Expr`](/docs/kcl/types/Expr)| An expression can be evaluated to yield a single KCL value. | No |
-| `endInclusive` |`boolean`| Is the `end_element` included in the range? | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `ObjectExpression`|  | No |
-| `properties` |`[` [`ObjectProperty`](/docs/kcl/types/ObjectProperty) `]`|  | No |
-| `nonCodeMeta` |[`NonCodeMeta`](/docs/kcl/types/NonCodeMeta)| An expression can be evaluated to yield a single KCL value. | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `MemberExpression`|  | No |
-| `object` |[`MemberObject`](/docs/kcl/types/MemberObject)| An expression can be evaluated to yield a single KCL value. | No |
-| `property` |[`LiteralIdentifier`](/docs/kcl/types/LiteralIdentifier)| An expression can be evaluated to yield a single KCL value. | No |
-| `computed` |`boolean`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `UnaryExpression`|  | No |
-| `operator` |[`UnaryOperator`](/docs/kcl/types/UnaryOperator)| An expression can be evaluated to yield a single KCL value. | No |
-| `argument` |[`BinaryPart`](/docs/kcl/types/BinaryPart)| An expression can be evaluated to yield a single KCL value. | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `IfExpression`|  | No |
-| `cond` |[`Expr`](/docs/kcl/types/Expr)| An expression can be evaluated to yield a single KCL value. | No |
-| `then_val` |[`Program`](/docs/kcl/types/Program)| An expression can be evaluated to yield a single KCL value. | No |
-| `else_ifs` |`[` [`ElseIf`](/docs/kcl/types/ElseIf) `]`|  | No |
-| `final_else` |[`Program`](/docs/kcl/types/Program)| An expression can be evaluated to yield a single KCL value. | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-KCL value for an optional parameter which was not given an argument. (remember, parameters are in the function declaration, arguments are in the function call/application).
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `None`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-
-
-

docs/kcl/types/FunctionExpression.md

@@ -1,24 +0,0 @@
----
-title: "FunctionExpression"
-excerpt: ""
-layout: manual
----
-
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `params` |`[` [`Parameter`](/docs/kcl/types/Parameter) `]`|  | No |
-| `body` |[`Program`](/docs/kcl/types/Program)|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-

docs/kcl/types/Identifier.md

@@ -1,23 +0,0 @@
----
-title: "Identifier"
-excerpt: ""
-layout: manual
----
-
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `name` |`string`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-

docs/kcl/types/ImportItem.md

@@ -1,24 +0,0 @@
----
-title: "ImportItem"
-excerpt: ""
-layout: manual
----
-
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `name` |[`Identifier`](/docs/kcl/types/Identifier)| Name of the item to import. | No |
-| `alias` |[`Identifier`](/docs/kcl/types/Identifier)| Rename the item using an identifier after "as". | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-

docs/kcl/types/ItemVisibility.md

@@ -1,16 +0,0 @@
----
-title: "ItemVisibility"
-excerpt: ""
-layout: manual
----
-
-
-**enum:** `default`, `export`
-
-
-
-
-
-
-
-

docs/kcl/types/KclValue.md

@@ -317,7 +317,6 @@ Data for an imported geometry.
 | Property | Type | Description | Required |
 |----------|------|-------------|----------|
 | `type` |enum: `Function`|  | No |
-| `expression` |[`FunctionExpression`](/docs/kcl/types/FunctionExpression)| Any KCL value. | No |
 | `memory` |[`ProgramMemory`](/docs/kcl/types/ProgramMemory)| Any KCL value. | No |
 | `__meta` |`[` [`Metadata`](/docs/kcl/types/Metadata) `]`|  | No |
 

docs/kcl/types/LiteralIdentifier.md

@@ -1,56 +0,0 @@
----
-title: "LiteralIdentifier"
-excerpt: ""
-layout: manual
----
-
-
-
-
-
-
-**This schema accepts exactly one of the following:**
-
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: [`Identifier`](/docs/kcl/types/Identifier)|  | No |
-| `name` |`string`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `Literal`|  | No |
-| `value` |[`LiteralValue`](/docs/kcl/types/LiteralValue)|  | No |
-| `raw` |`string`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-
-
-

docs/kcl/types/LiteralValue.md

@@ -1,47 +0,0 @@
----
-title: "LiteralValue"
-excerpt: ""
-layout: manual
----
-
-
-
-
-
-**This schema accepts any of the following:**
-
-
-**Type:** `number` (`double`)
-
-
-
-
-
-
-
-----
-
-**Type:** `string`
-
-
-
-
-
-
-
-----
-
-**Type:** `boolean`
-
-
-
-
-
-
-
-----
-
-
-
-
-

docs/kcl/types/MemberObject.md

@@ -1,57 +0,0 @@
----
-title: "MemberObject"
-excerpt: ""
-layout: manual
----
-
-
-
-
-
-
-**This schema accepts exactly one of the following:**
-
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `MemberExpression`|  | No |
-| `object` |[`MemberObject`](/docs/kcl/types/MemberObject)|  | No |
-| `property` |[`LiteralIdentifier`](/docs/kcl/types/LiteralIdentifier)|  | No |
-| `computed` |`boolean`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: [`Identifier`](/docs/kcl/types/Identifier)|  | No |
-| `name` |`string`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-
-----
-
-
-
-

docs/kcl/types/NonCodeMeta.md

@@ -1,22 +0,0 @@
----
-title: "NonCodeMeta"
-excerpt: ""
-layout: manual
----
-
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `nonCodeNodes` |`object`|  | No |
-| `startNodes` |`[` [`NonCodeNode`](/docs/kcl/types/NonCodeNode) `]`|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-
-

docs/kcl/types/NonCodeNode.md

@@ -1,23 +0,0 @@
----
-title: "NonCodeNode"
-excerpt: ""
-layout: manual
----
-
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `value` |[`NonCodeValue`](/docs/kcl/types/NonCodeValue)|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-

docs/kcl/types/NonCodeValue.md

@@ -1,86 +0,0 @@
----
-title: "NonCodeValue"
-excerpt: ""
-layout: manual
----
-
-
-
-
-
-
-**This schema accepts exactly one of the following:**
-
-An inline comment. Here are examples: `1 + 1 // This is an inline comment`. `1 + 1 /* Here's another */`.
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `inlineComment`|  | No |
-| `value` |`string`|  | No |
-| `style` |[`CommentStyle`](/docs/kcl/types/CommentStyle)|  | No |
-
-
-----
-A block comment. An example of this is the following: ```python,no_run /* This is a block comment */ 1 + 1 ``` Now this is important. The block comment is attached to the next line. This is always the case. Also the block comment doesn't have a new line above it. If it did it would be a `NewLineBlockComment`.
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `blockComment`|  | No |
-| `value` |`string`|  | No |
-| `style` |[`CommentStyle`](/docs/kcl/types/CommentStyle)|  | No |
-
-
-----
-A block comment that has a new line above it. The user explicitly added a new line above the block comment.
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `newLineBlockComment`|  | No |
-| `value` |`string`|  | No |
-| `style` |[`CommentStyle`](/docs/kcl/types/CommentStyle)|  | No |
-
-
-----
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `type` |enum: `newLine`|  | No |
-
-
-----
-
-
-
-

docs/kcl/types/ObjectProperty.md

@@ -1,24 +0,0 @@
----
-title: "ObjectProperty"
-excerpt: ""
-layout: manual
----
-
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `key` |[`Identifier`](/docs/kcl/types/Identifier)|  | No |
-| `value` |[`Expr`](/docs/kcl/types/Expr)|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-

docs/kcl/types/Parameter.md

@@ -1,23 +0,0 @@
----
-title: "Parameter"
-excerpt: "Parameter of a KCL function."
-layout: manual
----
-
-Parameter of a KCL function.
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `identifier` |[`Identifier`](/docs/kcl/types/Identifier)| The parameter's label or name. | No |
-| `optional` |`boolean`| Is the parameter optional? | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-
-

docs/kcl/types/Program.md

@@ -1,26 +0,0 @@
----
-title: "Program"
-excerpt: "A KCL program top level, or function body."
-layout: manual
----
-
-A KCL program top level, or function body.
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `body` |`[` [`BodyItem`](/docs/kcl/types/BodyItem) `]`|  | No |
-| `nonCodeMeta` |[`NonCodeMeta`](/docs/kcl/types/NonCodeMeta)| A KCL program top level, or function body. | No |
-| `shebang` |[`Shebang`](/docs/kcl/types/Shebang)|  | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-

docs/kcl/types/Shebang.md

@@ -1,23 +0,0 @@
----
-title: "Shebang"
-excerpt: "A shebang. This is a special type of comment that is at the top of the file. It looks like this: ```python,no_run #!/usr/bin/env python ```"
-layout: manual
----
-
-A shebang. This is a special type of comment that is at the top of the file. It looks like this: ```python,no_run #!/usr/bin/env python ```
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `content` |`string`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-

docs/kcl/types/Uint.md

@@ -1,15 +0,0 @@
----
-title: "Uint"
-excerpt: ""
-layout: manual
----
-
-
-**Type:** `integer` (`uint32`)
-
-
-
-
-
-
-

docs/kcl/types/UnaryOperator.md

@@ -1,41 +0,0 @@
----
-title: "UnaryOperator"
-excerpt: ""
-layout: manual
----
-
-
-
-
-
-
-**This schema accepts exactly one of the following:**
-
-Negate a number.
-
-**enum:** `-`
-
-
-
-
-
-
-
-
-----
-Negate a boolean.
-
-**enum:** `!`
-
-
-
-
-
-
-
-
-----
-
-
-
-

docs/kcl/types/VariableDeclarator.md

@@ -1,24 +0,0 @@
----
-title: "VariableDeclarator"
-excerpt: ""
-layout: manual
----
-
-
-**Type:** `object`
-
-
-
-
-
-## Properties
-
-| Property | Type | Description | Required |
-|----------|------|-------------|----------|
-| `id` |[`Identifier`](/docs/kcl/types/Identifier)| The identifier of the variable. | No |
-| `init` |[`Expr`](/docs/kcl/types/Expr)| The value of the variable. | No |
-| `digest` |`[, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`, `integer`]`|  | No |
-| `start` |`integer`|  | No |
-| `end` |`integer`|  | No |
-
-

docs/kcl/types/VariableKind.md

@@ -1,41 +0,0 @@
----
-title: "VariableKind"
-excerpt: ""
-layout: manual
----
-
-
-
-
-
-
-**This schema accepts exactly one of the following:**
-
-Declare a named constant.
-
-**enum:** `const`
-
-
-
-
-
-
-
-
-----
-Declare a function.
-
-**enum:** `fn`
-
-
-
-
-
-
-
-
-----
-
-
-
-

e2e/playwright/editor-tests.spec.ts

@@ -458,8 +458,8 @@ test.describe('Editor tests', () => {
 
     /* add the following code to the editor ($ error is not a valid line)
       $ error
-      const topAng = 30
+      topAng = 30
-      const bottomAng = 25
+      bottomAng = 25
      */
     await u.codeLocator.click()
     await page.keyboard.type('$ error')
@@ -474,12 +474,14 @@ test.describe('Editor tests', () => {
     await page.keyboard.type('bottomAng = 25')
     await page.keyboard.press('Enter')
 
-    // error in guter
+    // error in gutter
     await expect(page.locator('.cm-lint-marker-error')).toBeVisible()
 
     // error text on hover
     await page.hover('.cm-lint-marker-error')
-    await expect(page.getByText('Unexpected token: $').first()).toBeVisible()
+    await expect(
+      page.getByText('Tag names must not be empty').first()
+    ).toBeVisible()
 
     // select the line that's causing the error and delete it
     await page.getByText('$ error').click()
@@ -518,7 +520,10 @@ test.describe('Editor tests', () => {
     await expect(page.locator('.cm-lint-marker-error')).not.toBeVisible()
   })
 
-  test('error with 2 source ranges gets 2 diagnostics', async ({ page }) => {
+  // TODO currently multiple source ranges are not supported
+  test.skip('error with 2 source ranges gets 2 diagnostics', async ({
+    page,
+  }) => {
     const u = await getUtils(page)
     await page.addInitScript(async () => {
       localStorage.setItem(

e2e/playwright/file-tree.spec.ts

@@ -45,7 +45,6 @@ test.describe('integrations tests', () => {
             {
               title: 'test-sample',
               fileCount: 1,
-              folderCount: 1,
             },
           ],
           sortBy: 'last-modified-desc',
@@ -233,7 +232,6 @@ test.describe('when using the file tree to', () => {
             {
               title: projectName,
               fileCount: 2,
-              folderCount: 2, // TODO: This is a pre-existing bug, there are no folders within the project
             },
           ],
           sortBy: 'last-modified-desc',

e2e/playwright/fixtures/homePageFixture.ts

@@ -4,7 +4,6 @@ import { expect } from '@playwright/test'
 interface ProjectCardState {
   title: string
   fileCount: number
-  folderCount: number
 }
 
 interface HomePageState {
@@ -61,15 +60,13 @@ export class HomePageFixture {
     const projectCards = await this.projectCard.all()
     const projectCardStates: Array<ProjectCardState> = []
     for (const projectCard of projectCards) {
-      const [title, fileCount, folderCount] = await Promise.all([
+      const [title, fileCount] = await Promise.all([
         (await projectCard.locator(this.projectCardTitle).textContent()) || '',
         Number(await projectCard.locator(this.projectCardFile).textContent()),
-        Number(await projectCard.locator(this.projectCardFolder).textContent()),
       ])
       projectCardStates.push({
         title: title,
         fileCount,
-        folderCount,
       })
     }
     return projectCardStates

e2e/playwright/fixtures/toolbarFixture.ts

@@ -6,6 +6,8 @@ export class ToolbarFixture {
   public page: Page
 
   extrudeButton!: Locator
+  loftButton!: Locator
+  shellButton!: Locator
   offsetPlaneButton!: Locator
   startSketchBtn!: Locator
   lineBtn!: Locator
@@ -26,6 +28,8 @@ export class ToolbarFixture {
   reConstruct = (page: Page) => {
     this.page = page
     this.extrudeButton = page.getByTestId('extrude')
+    this.loftButton = page.getByTestId('loft')
+    this.shellButton = page.getByTestId('shell')
     this.offsetPlaneButton = page.getByTestId('plane-offset')
     this.startSketchBtn = page.getByTestId('sketch')
     this.lineBtn = page.getByTestId('line')

e2e/playwright/point-click.spec.ts

@@ -677,3 +677,257 @@ test(`Offset plane point-and-click`, async ({
     await scene.expectPixelColor([74, 74, 74], testPoint, 15)
   })
 })
+
+const loftPointAndClickCases = [
+  { shouldPreselect: true },
+  { shouldPreselect: false },
+]
+loftPointAndClickCases.forEach(({ shouldPreselect }) => {
+  test(`Loft point-and-click (preselected sketches: ${shouldPreselect})`, async ({
+    app,
+    page,
+    scene,
+    editor,
+    toolbar,
+    cmdBar,
+  }) => {
+    const initialCode = `sketch001 = startSketchOn('XZ')
+    |> circle({ center = [0, 0], radius = 30 }, %)
+    plane001 = offsetPlane('XZ', 50)
+    sketch002 = startSketchOn(plane001)
+    |> circle({ center = [0, 0], radius = 20 }, %)
+`
+    await app.initialise(initialCode)
+
+    // 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
+    )
+    const loftDeclaration = 'loft001 = loft([sketch001, sketch002])'
+
+    await test.step(`Look for the white of the sketch001 shape`, async () => {
+      await scene.expectPixelColor([254, 254, 254], testPoint, 15)
+    })
+
+    async function selectSketches() {
+      await clickOnSketch1()
+      await page.keyboard.down('Shift')
+      await clickOnSketch2()
+      await app.page.waitForTimeout(500)
+      await page.keyboard.up('Shift')
+    }
+
+    if (!shouldPreselect) {
+      await test.step(`Go through the command bar flow without preselected sketches`, async () => {
+        await toolbar.loftButton.click()
+        await cmdBar.expectState({
+          stage: 'arguments',
+          currentArgKey: 'selection',
+          currentArgValue: '',
+          headerArguments: { Selection: '' },
+          highlightedHeaderArg: 'selection',
+          commandName: 'Loft',
+        })
+        await selectSketches()
+        await cmdBar.progressCmdBar()
+        await cmdBar.expectState({
+          stage: 'review',
+          headerArguments: { Selection: '2 faces' },
+          commandName: 'Loft',
+        })
+        await cmdBar.progressCmdBar()
+      })
+    } else {
+      await test.step(`Preselect the two sketches`, async () => {
+        await selectSketches()
+      })
+
+      await test.step(`Go through the command bar flow with preselected sketches`, async () => {
+        await toolbar.loftButton.click()
+        await cmdBar.progressCmdBar()
+        await cmdBar.expectState({
+          stage: 'review',
+          headerArguments: { Selection: '2 faces' },
+          commandName: 'Loft',
+        })
+        await cmdBar.progressCmdBar()
+      })
+    }
+
+    await test.step(`Confirm code is added to the editor, scene has changed`, async () => {
+      await editor.expectEditor.toContain(loftDeclaration)
+      await editor.expectState({
+        diagnostics: [],
+        activeLines: [loftDeclaration],
+        highlightedCode: '',
+      })
+      await scene.expectPixelColor([89, 89, 89], testPoint, 15)
+    })
+  })
+})
+
+const shellPointAndClickCapCases = [
+  { shouldPreselect: true },
+  { shouldPreselect: false },
+]
+shellPointAndClickCapCases.forEach(({ shouldPreselect }) => {
+  test(`Shell point-and-click cap (preselected sketches: ${shouldPreselect})`, async ({
+    app,
+    scene,
+    editor,
+    toolbar,
+    cmdBar,
+  }) => {
+    const initialCode = `sketch001 = startSketchOn('XZ')
+    |> circle({ center = [0, 0], radius = 30 }, %)
+    extrude001 = extrude(30, sketch001)
+    `
+    await app.initialise(initialCode)
+
+    // One dumb hardcoded screen pixel value
+    const testPoint = { x: 575, y: 200 }
+    const [clickOnCap] = scene.makeMouseHelpers(testPoint.x, testPoint.y)
+    const shellDeclaration =
+      "shell001 = shell({ faces = ['end'], thickness = 5 }, extrude001)"
+
+    await test.step(`Look for the grey of the shape`, async () => {
+      await scene.expectPixelColor([127, 127, 127], testPoint, 15)
+    })
+
+    if (!shouldPreselect) {
+      await test.step(`Go through the command bar flow without preselected faces`, async () => {
+        await toolbar.shellButton.click()
+        await cmdBar.expectState({
+          stage: 'arguments',
+          currentArgKey: 'selection',
+          currentArgValue: '',
+          headerArguments: {
+            Selection: '',
+            Thickness: '',
+          },
+          highlightedHeaderArg: 'selection',
+          commandName: 'Shell',
+        })
+        await clickOnCap()
+        await cmdBar.progressCmdBar()
+        await cmdBar.progressCmdBar()
+        await cmdBar.expectState({
+          stage: 'review',
+          headerArguments: {
+            Selection: '1 cap',
+            Thickness: '5',
+          },
+          commandName: 'Shell',
+        })
+        await cmdBar.progressCmdBar()
+      })
+    } else {
+      await test.step(`Preselect the cap`, async () => {
+        await clickOnCap()
+      })
+
+      await test.step(`Go through the command bar flow with a preselected face (cap)`, async () => {
+        await toolbar.shellButton.click()
+        await cmdBar.progressCmdBar()
+        await cmdBar.progressCmdBar()
+        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 editor.expectEditor.toContain(shellDeclaration)
+      await editor.expectState({
+        diagnostics: [],
+        activeLines: [shellDeclaration],
+        highlightedCode: '',
+      })
+      await scene.expectPixelColor([146, 146, 146], testPoint, 15)
+    })
+  })
+})
+
+test('Shell point-and-click wall', async ({
+  app,
+  page,
+  scene,
+  editor,
+  toolbar,
+  cmdBar,
+}) => {
+  const initialCode = `sketch001 = startSketchOn('XY')
+  |> startProfileAt([-20, 20], %)
+  |> xLine(40, %)
+  |> yLine(-60, %)
+  |> xLine(-40, %)
+  |> lineTo([profileStartX(%), profileStartY(%)], %)
+  |> close(%)
+extrude001 = extrude(40, sketch001)
+  `
+  await app.initialise(initialCode)
+
+  // One dumb hardcoded screen pixel value
+  const testPoint = { x: 580, y: 180 }
+  const [clickOnCap] = scene.makeMouseHelpers(testPoint.x, testPoint.y)
+  const [clickOnWall] = scene.makeMouseHelpers(testPoint.x, testPoint.y + 70)
+  const mutatedCode = 'xLine(-40, %, $seg01)'
+  const shellDeclaration =
+    "shell001 = shell({  faces = ['end', seg01],  thickness = 5}, extrude001)"
+  const formattedOutLastLine = '}, extrude001)'
+
+  await test.step(`Look for the grey of the shape`, async () => {
+    await scene.expectPixelColor([99, 99, 99], testPoint, 15)
+  })
+
+  await test.step(`Go through the command bar flow, selecting a wall 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.keyboard.down('Shift')
+    await clickOnWall()
+    await app.page.waitForTimeout(500)
+    await page.keyboard.up('Shift')
+    await cmdBar.progressCmdBar()
+    await cmdBar.progressCmdBar()
+    await cmdBar.expectState({
+      stage: 'review',
+      headerArguments: {
+        Selection: '1 cap, 1 face',
+        Thickness: '5',
+      },
+      commandName: 'Shell',
+    })
+    await cmdBar.progressCmdBar()
+  })
+
+  await test.step(`Confirm code is added to the editor, scene has changed`, async () => {
+    await editor.expectEditor.toContain(mutatedCode)
+    await editor.expectEditor.toContain(shellDeclaration)
+    await editor.expectState({
+      diagnostics: [],
+      activeLines: [formattedOutLastLine],
+      highlightedCode: '',
+    })
+    await scene.expectPixelColor([49, 49, 49], testPoint, 15)
+  })
+})

e2e/playwright/projects.spec.ts

@@ -136,6 +136,335 @@ test(
   }
 )
 
+test(
+  'open a file in a project works and renders, open another file in different project with errors, it should clear the scene',
+  { tag: '@electron' },
+  async ({ browserName }, testInfo) => {
+    const { electronApp, page } = await setupElectron({
+      testInfo,
+      folderSetupFn: async (dir) => {
+        const bracketDir = join(dir, 'bracket')
+        await fsp.mkdir(bracketDir, { recursive: true })
+        await fsp.copyFile(
+          executorInputPath('focusrite_scarlett_mounting_braket.kcl'),
+          join(bracketDir, 'main.kcl')
+        )
+        const errorDir = join(dir, 'broken-code')
+        await fsp.mkdir(errorDir, { recursive: true })
+        await fsp.copyFile(
+          executorInputPath('broken-code-test.kcl'),
+          join(errorDir, 'main.kcl')
+        )
+      },
+    })
+
+    await page.setViewportSize({ width: 1200, height: 500 })
+    const u = await getUtils(page)
+
+    page.on('console', console.log)
+
+    const pointOnModel = { x: 630, y: 280 }
+
+    await test.step('Opening the bracket project should load the stream', async () => {
+      // expect to see the text bracket
+      await expect(page.getByText('bracket')).toBeVisible()
+
+      await page.getByText('bracket').click()
+
+      await expect(page.getByTestId('loading')).toBeAttached()
+      await expect(page.getByTestId('loading')).not.toBeAttached({
+        timeout: 20_000,
+      })
+
+      await expect(
+        page.getByRole('button', { name: 'Start Sketch' })
+      ).toBeEnabled({
+        timeout: 20_000,
+      })
+
+      // gray at this pixel means the stream has loaded in the most
+      // user way we can verify it (pixel color)
+      await expect
+        .poll(() => u.getGreatestPixDiff(pointOnModel, [85, 85, 85]), {
+          timeout: 10_000,
+        })
+        .toBeLessThan(15)
+    })
+
+    await test.step('Clicking the logo takes us back to the projects page / home', async () => {
+      await page.getByTestId('app-logo').click()
+
+      await expect(page.getByRole('link', { name: 'bracket' })).toBeVisible()
+      await expect(page.getByText('broken-code')).toBeVisible()
+      await expect(page.getByText('bracket')).toBeVisible()
+      await expect(page.getByText('New Project')).toBeVisible()
+    })
+    await test.step('opening broken code project should clear the scene and show the error', async () => {
+      // Go back home.
+      await expect(page.getByText('broken-code')).toBeVisible()
+
+      await page.getByText('broken-code').click()
+
+      // error in guter
+      await expect(page.locator('.cm-lint-marker-error')).toBeVisible()
+
+      // error text on hover
+      await page.hover('.cm-lint-marker-error')
+      const crypticErrorText = `Expected a tag declarator`
+      await expect(page.getByText(crypticErrorText).first()).toBeVisible()
+
+      // black pixel means the scene has been cleared.
+      await expect
+        .poll(() => u.getGreatestPixDiff(pointOnModel, [30, 30, 30]), {
+          timeout: 10_000,
+        })
+        .toBeLessThan(15)
+    })
+
+    await electronApp.close()
+  }
+)
+
+test(
+  'open a file in a project works and renders, open another file in different project that is empty, it should clear the scene',
+  { tag: '@electron' },
+  async ({ browserName }, testInfo) => {
+    const { electronApp, page } = await setupElectron({
+      testInfo,
+      folderSetupFn: async (dir) => {
+        const bracketDir = join(dir, 'bracket')
+        await fsp.mkdir(bracketDir, { recursive: true })
+        await fsp.copyFile(
+          executorInputPath('focusrite_scarlett_mounting_braket.kcl'),
+          join(bracketDir, 'main.kcl')
+        )
+        const emptyDir = join(dir, 'empty')
+        await fsp.mkdir(emptyDir, { recursive: true })
+        await fsp.writeFile(join(emptyDir, 'main.kcl'), '')
+      },
+    })
+
+    await page.setViewportSize({ width: 1200, height: 500 })
+    const u = await getUtils(page)
+
+    page.on('console', console.log)
+
+    const pointOnModel = { x: 630, y: 280 }
+
+    await test.step('Opening the bracket project should load the stream', async () => {
+      // expect to see the text bracket
+      await expect(page.getByText('bracket')).toBeVisible()
+
+      await page.getByText('bracket').click()
+
+      await expect(page.getByTestId('loading')).toBeAttached()
+      await expect(page.getByTestId('loading')).not.toBeAttached({
+        timeout: 20_000,
+      })
+
+      await expect(
+        page.getByRole('button', { name: 'Start Sketch' })
+      ).toBeEnabled({
+        timeout: 20_000,
+      })
+
+      // gray at this pixel means the stream has loaded in the most
+      // user way we can verify it (pixel color)
+      await expect
+        .poll(() => u.getGreatestPixDiff(pointOnModel, [85, 85, 85]), {
+          timeout: 10_000,
+        })
+        .toBeLessThan(15)
+    })
+
+    await test.step('Clicking the logo takes us back to the projects page / home', async () => {
+      await page.getByTestId('app-logo').click()
+
+      await expect(page.getByRole('link', { name: 'bracket' })).toBeVisible()
+      await expect(page.getByText('empty')).toBeVisible()
+      await expect(page.getByText('bracket')).toBeVisible()
+      await expect(page.getByText('New Project')).toBeVisible()
+    })
+    await test.step('opening empty code project should clear the scene', async () => {
+      // Go back home.
+      await expect(page.getByText('empty')).toBeVisible()
+
+      await page.getByText('empty').click()
+
+      // Ensure the code is empty.
+      await expect(u.codeLocator).toContainText('')
+      expect(u.codeLocator.innerHTML.length).toBeLessThan(2)
+
+      // planes colors means the scene has been cleared.
+      await expect
+        .poll(() => u.getGreatestPixDiff(pointOnModel, [92, 53, 53]), {
+          timeout: 10_000,
+        })
+        .toBeLessThan(15)
+    })
+
+    await electronApp.close()
+  }
+)
+
+test(
+  'open a file in a project works and renders, open empty file, it should clear the scene',
+  { tag: '@electron' },
+  async ({ browserName }, testInfo) => {
+    const { electronApp, page } = await setupElectron({
+      testInfo,
+      folderSetupFn: async (dir) => {
+        const bracketDir = join(dir, 'bracket')
+        await fsp.mkdir(bracketDir, { recursive: true })
+        await fsp.copyFile(
+          executorInputPath('focusrite_scarlett_mounting_braket.kcl'),
+          join(bracketDir, 'main.kcl')
+        )
+
+        await fsp.writeFile(join(bracketDir, 'empty.kcl'), '')
+      },
+    })
+
+    await page.setViewportSize({ width: 1200, height: 500 })
+    const u = await getUtils(page)
+
+    page.on('console', console.log)
+
+    const pointOnModel = { x: 630, y: 280 }
+
+    await test.step('Opening the bracket project should load the stream', async () => {
+      // expect to see the text bracket
+      await expect(page.getByText('bracket')).toBeVisible()
+
+      await page.getByText('bracket').click()
+
+      await expect(page.getByTestId('loading')).toBeAttached()
+      await expect(page.getByTestId('loading')).not.toBeAttached({
+        timeout: 20_000,
+      })
+
+      await expect(
+        page.getByRole('button', { name: 'Start Sketch' })
+      ).toBeEnabled({
+        timeout: 20_000,
+      })
+
+      // gray at this pixel means the stream has loaded in the most
+      // user way we can verify it (pixel color)
+      await expect
+        .poll(() => u.getGreatestPixDiff(pointOnModel, [85, 85, 85]), {
+          timeout: 10_000,
+        })
+        .toBeLessThan(15)
+    })
+    await test.step('creating a empty file should clear the scene', async () => {
+      // open the file pane.
+      await page.getByTestId('files-pane-button').click()
+
+      // OPen the other file.
+      const file = page.getByRole('button', { name: 'empty.kcl' })
+      await expect(file).toBeVisible()
+
+      await file.click()
+
+      // planes colors means the scene has been cleared.
+      await expect
+        .poll(() => u.getGreatestPixDiff(pointOnModel, [92, 53, 53]), {
+          timeout: 10_000,
+        })
+        .toBeLessThan(15)
+
+      // Ensure the code is empty.
+      await expect(u.codeLocator).toContainText('')
+      expect(u.codeLocator.innerHTML.length).toBeLessThan(2)
+    })
+
+    await electronApp.close()
+  }
+)
+
+test(
+  'open a file in a project works and renders, open another file in the same project with errors, it should clear the scene',
+  { tag: '@electron' },
+  async ({ browserName }, testInfo) => {
+    const { electronApp, page } = await setupElectron({
+      testInfo,
+      folderSetupFn: async (dir) => {
+        const bracketDir = join(dir, 'bracket')
+        await fsp.mkdir(bracketDir, { recursive: true })
+        await fsp.copyFile(
+          executorInputPath('focusrite_scarlett_mounting_braket.kcl'),
+          join(bracketDir, 'main.kcl')
+        )
+        await fsp.copyFile(
+          executorInputPath('broken-code-test.kcl'),
+          join(bracketDir, 'broken-code-test.kcl')
+        )
+      },
+    })
+
+    await page.setViewportSize({ width: 1200, height: 500 })
+    const u = await getUtils(page)
+
+    page.on('console', console.log)
+
+    const pointOnModel = { x: 630, y: 280 }
+
+    await test.step('Opening the bracket project should load the stream', async () => {
+      // expect to see the text bracket
+      await expect(page.getByText('bracket')).toBeVisible()
+
+      await page.getByText('bracket').click()
+
+      await expect(page.getByTestId('loading')).toBeAttached()
+      await expect(page.getByTestId('loading')).not.toBeAttached({
+        timeout: 20_000,
+      })
+
+      await expect(
+        page.getByRole('button', { name: 'Start Sketch' })
+      ).toBeEnabled({
+        timeout: 20_000,
+      })
+
+      // gray at this pixel means the stream has loaded in the most
+      // user way we can verify it (pixel color)
+      await expect
+        .poll(() => u.getGreatestPixDiff(pointOnModel, [85, 85, 85]), {
+          timeout: 10_000,
+        })
+        .toBeLessThan(15)
+    })
+    await test.step('opening broken code file should clear the scene and show the error', async () => {
+      // open the file pane.
+      await page.getByTestId('files-pane-button').click()
+
+      // OPen the other file.
+      const file = page.getByRole('button', { name: 'broken-code-test.kcl' })
+      await expect(file).toBeVisible()
+
+      await file.click()
+
+      // error in guter
+      await expect(page.locator('.cm-lint-marker-error')).toBeVisible()
+
+      // error text on hover
+      await page.hover('.cm-lint-marker-error')
+      const crypticErrorText = `Expected a tag declarator`
+      await expect(page.getByText(crypticErrorText).first()).toBeVisible()
+
+      // black pixel means the scene has been cleared.
+      await expect
+        .poll(() => u.getGreatestPixDiff(pointOnModel, [30, 30, 30]), {
+          timeout: 10_000,
+        })
+        .toBeLessThan(15)
+    })
+
+    await electronApp.close()
+  }
+)
+
 test(
   'when code with error first loads you get errors in console',
   { tag: '@electron' },

e2e/playwright/regression-tests.spec.ts

@@ -550,7 +550,7 @@ sketch001 = startSketchAt([-0, -0])
     const u = await getUtils(page)
 
     // Constants and locators
-    const planeColor: [number, number, number] = [170, 220, 170]
+    const planeColor: [number, number, number] = [161, 220, 155]
     const bgColor: [number, number, number] = [27, 27, 27]
     const middlePixelIsColor = async (color: [number, number, number]) => {
       return u.getGreatestPixDiff({ x: 600, y: 250 }, color)

e2e/playwright/secrets.ts

@@ -7,6 +7,8 @@ try {
     .split('\n')
     .filter((line) => line && line.length > 1)
     .forEach((line) => {
+      // Allow line comments.
+      if (line.trimStart().startsWith('#')) return
       const [key, value] = line.split('=')
       // prefer env vars over secrets file
       secrets[key] = process.env[key] || (value as any).replaceAll('"', '')

e2e/playwright/sketch-tests.spec.ts

@@ -943,6 +943,110 @@ sketch002 = startSketchOn(extrude001, 'END')
 `.replace(/\s/g, '')
     )
   })
+
+  /* TODO: once we fix bug turn on.
+   test('empty-scene default-planes act as expected when spaces in file', async ({
+    page,
+    browserName,
+  }) => {
+
+    const u = await getUtils(page)
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.openDebugPanel()
+    await u.expectCmdLog('[data-message-type="execution-done"]')
+    await u.closeDebugPanel()
+
+    const XYPlanePoint = { x: 774, y: 116 } as const
+    const unHoveredColor: [number, number, number] = [47, 47, 93]
+    expect(
+      await u.getGreatestPixDiff(XYPlanePoint, unHoveredColor)
+    ).toBeLessThan(8)
+
+    await page.mouse.move(XYPlanePoint.x, XYPlanePoint.y)
+    await page.waitForTimeout(200)
+
+    // color should not change for having been hovered
+    expect(
+      await u.getGreatestPixDiff(XYPlanePoint, unHoveredColor)
+    ).toBeLessThan(8)
+
+    await u.openAndClearDebugPanel()
+
+    // Fill with spaces
+    await u.codeLocator.fill(`               
+`)
+
+    await u.openDebugPanel()
+    await u.expectCmdLog('[data-message-type="execution-done"]')
+    await u.closeDebugPanel()
+
+    expect(
+      await u.getGreatestPixDiff(XYPlanePoint, unHoveredColor)
+    ).toBeLessThan(8)
+
+    await page.mouse.move(XYPlanePoint.x, XYPlanePoint.y)
+    await page.waitForTimeout(200)
+
+    // color should not change for having been hovered
+    expect(
+      await u.getGreatestPixDiff(XYPlanePoint, unHoveredColor)
+    ).toBeLessThan(8)
+  })
+
+  test('empty-scene default-planes act as expected when only code comments in file', async ({
+    page,
+    browserName,
+  }) => {
+
+    const u = await getUtils(page)
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+
+    await u.openDebugPanel()
+    await u.expectCmdLog('[data-message-type="execution-done"]')
+    await u.closeDebugPanel()
+
+    const XYPlanePoint = { x: 774, y: 116 } as const
+    const unHoveredColor: [number, number, number] = [47, 47, 93]
+    expect(
+      await u.getGreatestPixDiff(XYPlanePoint, unHoveredColor)
+    ).toBeLessThan(8)
+
+    await page.mouse.move(XYPlanePoint.x, XYPlanePoint.y)
+    await page.waitForTimeout(200)
+
+    // color should not change for having been hovered
+    expect(
+      await u.getGreatestPixDiff(XYPlanePoint, unHoveredColor)
+    ).toBeLessThan(8)
+
+    await u.openAndClearDebugPanel()
+
+    // Fill with spaces
+    await u.codeLocator.fill(`// this is a code comments ya nerds
+`)
+
+    await u.openDebugPanel()
+    await u.expectCmdLog('[data-message-type="execution-done"]')
+    await u.closeDebugPanel()
+
+    expect(
+      await u.getGreatestPixDiff(XYPlanePoint, unHoveredColor)
+    ).toBeLessThan(8)
+
+    await page.mouse.move(XYPlanePoint.x, XYPlanePoint.y)
+    await page.waitForTimeout(200)
+
+    // color should not change for having been hovered
+    expect(
+      await u.getGreatestPixDiff(XYPlanePoint, unHoveredColor)
+    ).toBeLessThan(8)
+  })*/
+
   test('empty-scene default-planes act as expected', async ({
     page,
     browserName,

e2e/playwright/testing-perspective-toggle.spec.ts

@@ -23,7 +23,7 @@ test.describe('Test toggling perspective', () => {
       y: screenHeight * 0.4,
     }
     const backgroundColor: [number, number, number] = [29, 29, 29]
-    const xzPlaneColor: [number, number, number] = [50, 50, 99]
+    const xzPlaneColor: [number, number, number] = [82, 55, 96]
     const locationToHaveColor = async (color: [number, number, number]) => {
       return u.getGreatestPixDiff(checkedScreenLocation, color)
     }

package.json

@@ -81,6 +81,7 @@
     "simpleserver": "yarn pretest && http-server ./public --cors -p 3000",
     "simpleserver:ci": "yarn pretest && http-server ./public --cors -p 3000 &",
     "simpleserver:bg": "yarn pretest && http-server ./public --cors -p 3000 &",
+    "simpleserver:stop": "kill-port 3000",
     "fmt": "prettier --write ./src *.ts *.json *.js ./e2e ./packages",
     "fmt-check": "prettier --check ./src *.ts *.json *.js ./e2e ./packages",
     "fetch:wasm": "./get-latest-wasm-bundle.sh",
@@ -95,6 +96,8 @@
     "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",
+    "files:invalidate-bucket": "./scripts/invalidate-files-bucket.sh",
+    "files:invalidate-bucket:nightly": "./scripts/invalidate-files-bucket.sh --nightly",
     "postinstall": "yarn fetch:samples && yarn xstate:typegen && ./node_modules/.bin/electron-rebuild",
     "xstate:typegen": "yarn xstate typegen \"src/**/*.ts?(x)\"",
     "make:dev": "make dev",
@@ -158,6 +161,7 @@
     "@electron/rebuild": "^3.6.0",
     "@iarna/toml": "^2.2.5",
     "@lezer/generator": "^1.7.1",
+    "@nabla/vite-plugin-eslint": "^2.0.5",
     "@playwright/test": "^1.46.1",
     "@testing-library/jest-dom": "^5.14.1",
     "@testing-library/react": "^15.0.2",
@@ -170,7 +174,7 @@
     "@types/pixelmatch": "^5.2.6",
     "@types/pngjs": "^6.0.4",
     "@types/react": "^18.3.4",
-    "@types/react-dom": "^18.2.25",
+    "@types/react-dom": "^18.3.1",
     "@types/react-modal": "^3.16.3",
     "@types/three": "^0.163.0",
     "@types/ua-parser-js": "^0.7.39",
@@ -192,7 +196,7 @@
     "eslint-plugin-css-modules": "^2.12.0",
     "eslint-plugin-import": "^2.30.0",
     "eslint-plugin-suggest-no-throw": "^1.0.0",
-    "happy-dom": "^15.10.2",
+    "happy-dom": "^15.11.7",
     "http-server": "^14.1.1",
     "husky": "^9.1.5",
     "kill-port": "^2.0.1",
@@ -207,12 +211,11 @@
     "ts-node": "^10.0.0",
     "typescript": "^5.7.2",
     "vite": "^5.4.6",
-    "vite-plugin-eslint": "^1.8.1",
     "vite-plugin-package-version": "^1.1.0",
     "vite-tsconfig-paths": "^4.3.2",
     "vitest": "^1.6.0",
     "vitest-webgl-canvas-mock": "^1.1.0",
-    "wasm-pack": "^0.13.0",
+    "wasm-pack": "^0.13.1",
     "ws": "^8.17.0",
     "yarn": "^1.22.22"
   }

scripts/get-nightly-changelog.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+echo "## What's Changed"
+git log ${PREVIOUS_TAG}..HEAD --oneline --pretty=format:%s | grep -v Bump | awk '{print "* "toupper(substr($0,0,1))substr($0,2)}'
+echo ""
+echo "**Full Changelog**: https://github.com/KittyCAD/modeling-app/compare/${PREVIOUS_TAG}...${TAG}"

scripts/invalidate-files-bucket.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+base_dir="/releases/modeling-app"
+if [[ $1 = "--nightly" ]]; then
+    base_dir="/releases/modeling-app/nightly"
+fi
+
+echo "Invalidating json and yml files at $base_dir in the download bucket"
+gcloud compute url-maps invalidate-cdn-cache dl-url-map --path="$base_dir/last_download.json" --async
+gcloud compute url-maps invalidate-cdn-cache dl-url-map --path="$base_dir/latest-linux-arm64.yml" --async
+gcloud compute url-maps invalidate-cdn-cache dl-url-map --path="$base_dir/latest-mac.yml" --async
+gcloud compute url-maps invalidate-cdn-cache dl-url-map --path="$base_dir/latest.yml" --async

src/clientSideScene/CameraControls.ts

@@ -155,7 +155,6 @@ export class CameraControls {
       this.camera.zoom = camProps.zoom || 1
     }
     this.camera.updateProjectionMatrix()
-    console.log('doing this thing', camProps)
     this.update(true)
   }
 
@@ -273,14 +272,26 @@ export class CameraControls {
         camSettings.center.y,
         camSettings.center.z
       )
-      const quat = new Quaternion(
+      const orientation = new Quaternion(
         camSettings.orientation.x,
         camSettings.orientation.y,
         camSettings.orientation.z,
         camSettings.orientation.w
       ).invert()
 
-      this.camera.up.copy(new Vector3(0, 1, 0).applyQuaternion(quat))
+      const newUp = new Vector3(
+        camSettings.up.x,
+        camSettings.up.y,
+        camSettings.up.z
+      )
+      this.camera.quaternion.set(
+        orientation.x,
+        orientation.y,
+        orientation.z,
+        orientation.w
+      )
+      this.camera.up.copy(newUp)
+      this.camera.updateProjectionMatrix()
       if (this.camera instanceof PerspectiveCamera && camSettings.ortho) {
         this.useOrthographicCamera()
       }
@@ -1164,7 +1175,7 @@ export class CameraControls {
       this.camera.updateProjectionMatrix()
     }
 
-    if (this.syncDirection === 'clientToEngine' || forceUpdate)
+    if (this.syncDirection === 'clientToEngine' || forceUpdate) {
       this.throttledUpdateEngineCamera({
         quaternion: this.camera.quaternion,
         position: this.camera.position,
@@ -1172,6 +1183,7 @@ export class CameraControls {
         isPerspective: this.isPerspective,
         target: this.target,
       })
+    }
     this.deferReactUpdate(this.reactCameraProperties)
     Object.values(this._camChangeCallbacks).forEach((cb) => cb())
   }

src/clientSideScene/ClientSideSceneComp.tsx

@@ -29,6 +29,9 @@ import {
   Expr,
   parse,
   recast,
+  defaultSourceRange,
+  resultIsOk,
+  ProgramMemory,
 } from 'lang/wasm'
 import { CustomIcon, CustomIconName } from 'components/CustomIcon'
 import { ConstrainInfo } from 'lang/std/stdTypes'
@@ -412,14 +415,15 @@ export async function deleteSegment({
   if (err(modifiedAst)) return Promise.reject(modifiedAst)
 
   const newCode = recast(modifiedAst)
-  modifiedAst = parse(newCode)
+  const pResult = parse(newCode)
-  if (err(modifiedAst)) return Promise.reject(modifiedAst)
+  if (err(pResult) || !resultIsOk(pResult)) return Promise.reject(pResult)
+  modifiedAst = pResult.program
 
   const testExecute = await executeAst({
     ast: modifiedAst,
-    idGenerator: kclManager.execState.idGenerator,
-    useFakeExecutor: true,
     engineCommandManager: engineCommandManager,
+    // We make sure to send an empty program memory to denote we mean mock mode.
+    programMemoryOverride: ProgramMemory.empty(),
   })
   if (testExecute.errors.length) {
     toast.error('Segment tag used outside of current Sketch. Could not delete.')
@@ -590,7 +594,9 @@ const ConstraintSymbol = ({
   if (err(_node)) return
   const node = _node.node
 
-  const range: SourceRange = node ? [node.start, node.end] : [0, 0]
+  const range: SourceRange = node
+    ? [node.start, node.end, true]
+    : defaultSourceRange()
 
   if (_type === 'intersectionTag') return null
 
@@ -612,7 +618,7 @@ const ConstraintSymbol = ({
           editorManager.setHighlightRange([range])
         }}
         onMouseLeave={() => {
-          editorManager.setHighlightRange([[0, 0]])
+          editorManager.setHighlightRange([defaultSourceRange()])
         }}
         // disabled={isConstrained || !convertToVarEnabled}
         // disabled={implicitDesc} TODO why does this change styles that are hard to override?
@@ -627,10 +633,12 @@ const ConstraintSymbol = ({
             })
           } else if (isConstrained) {
             try {
-              const parsed = parse(recast(kclManager.ast))
+              const pResult = parse(recast(kclManager.ast))
-              if (trap(parsed)) return Promise.reject(parsed)
+              if (trap(pResult) || !resultIsOk(pResult))
+                return Promise.reject(pResult)
+
               const _node1 = getNodeFromPath<CallExpression>(
-                parsed,
+                pResult.program!,
                 pathToNode,
                 'CallExpression',
                 true

src/clientSideScene/sceneEntities.ts

@@ -48,6 +48,9 @@ import {
   VariableDeclarator,
   sketchFromKclValue,
   sketchFromKclValueOptional,
+  defaultSourceRange,
+  sourceRangeFromRust,
+  resultIsOk,
 } from 'lang/wasm'
 import {
   engineCommandManager,
@@ -495,10 +498,9 @@ export class SceneEntities {
 
     const { execState } = await executeAst({
       ast: truncatedAst,
-      useFakeExecutor: true,
       engineCommandManager: this.engineCommandManager,
+      // We make sure to send an empty program memory to denote we mean mock mode.
       programMemoryOverride,
-      idGenerator: kclManager.execState.idGenerator,
     })
     const programMemory = execState.memory
     const sketch = sketchFromPathToNode({
@@ -530,7 +532,7 @@ export class SceneEntities {
 
     const segPathToNode = getNodePathFromSourceRange(
       maybeModdedAst,
-      sketch.start.__geoMeta.sourceRange
+      sourceRangeFromRust(sketch.start.__geoMeta.sourceRange)
     )
     if (sketch?.paths?.[0]?.type !== 'Circle') {
       const _profileStart = createProfileStartHandle({
@@ -552,7 +554,7 @@ export class SceneEntities {
     sketch.paths.forEach((segment, index) => {
       let segPathToNode = getNodePathFromSourceRange(
         maybeModdedAst,
-        segment.__geoMeta.sourceRange
+        sourceRangeFromRust(segment.__geoMeta.sourceRange)
       )
       if (
         draftExpressionsIndices &&
@@ -561,12 +563,12 @@ export class SceneEntities {
         const previousSegment = sketch.paths[index - 1] || sketch.start
         const previousSegmentPathToNode = getNodePathFromSourceRange(
           maybeModdedAst,
-          previousSegment.__geoMeta.sourceRange
+          sourceRangeFromRust(previousSegment.__geoMeta.sourceRange)
         )
         const bodyIndex = previousSegmentPathToNode[1][0]
         segPathToNode = getNodePathFromSourceRange(
           truncatedAst,
-          segment.__geoMeta.sourceRange
+          sourceRangeFromRust(segment.__geoMeta.sourceRange)
         )
         segPathToNode[1][0] = bodyIndex
       }
@@ -575,7 +577,10 @@ export class SceneEntities {
         index <= draftExpressionsIndices.end &&
         index >= draftExpressionsIndices.start
       const isSelected = selectionRanges?.graphSelections.some((selection) =>
-        isOverlap(selection?.codeRef?.range, segment.__geoMeta.sourceRange)
+        isOverlap(
+          selection?.codeRef?.range,
+          sourceRangeFromRust(segment.__geoMeta.sourceRange)
+        )
       )
 
       let seg: Group
@@ -657,13 +662,11 @@ export class SceneEntities {
   }
   updateAstAndRejigSketch = async (
     sketchPathToNode: PathToNode,
-    modifiedAst: Node<Program> | Error,
+    modifiedAst: Node<Program>,
     forward: [number, number, number],
     up: [number, number, number],
     origin: [number, number, number]
   ) => {
-    if (err(modifiedAst)) return modifiedAst
-
     const nextAst = await kclManager.updateAst(modifiedAst, false)
     await this.tearDownSketch({ removeAxis: false })
     sceneInfra.resetMouseListeners()
@@ -698,8 +701,7 @@ export class SceneEntities {
       'VariableDeclaration'
     )
     if (trap(_node1)) return Promise.reject(_node1)
-    const variableDeclarationName =
+    const variableDeclarationName = _node1.node?.declaration.id?.name || ''
-      _node1.node?.declarations?.[0]?.id?.name || ''
 
     const sg = sketchFromKclValue(
       kclManager.programMemory.get(variableDeclarationName),
@@ -721,8 +723,9 @@ export class SceneEntities {
       pathToNode: sketchPathToNode,
     })
     if (trap(mod)) return Promise.reject(mod)
-    const modifiedAst = parse(recast(mod.modifiedAst))
+    const pResult = parse(recast(mod.modifiedAst))
-    if (trap(modifiedAst)) return Promise.reject(modifiedAst)
+    if (trap(pResult) || !resultIsOk(pResult)) return Promise.reject(pResult)
+    const modifiedAst = pResult.program
 
     const draftExpressionsIndices = { start: index, end: index }
 
@@ -898,10 +901,9 @@ export class SceneEntities {
       'VariableDeclaration'
     )
     if (trap(_node1)) return Promise.reject(_node1)
-    const variableDeclarationName =
+    const variableDeclarationName = _node1.node?.declaration.id?.name || ''
-      _node1.node?.declarations?.[0]?.id?.name || ''
+    const startSketchOn = _node1.node?.declaration
-    const startSketchOn = _node1.node?.declarations
+    const startSketchOnInit = startSketchOn?.init
-    const startSketchOnInit = startSketchOn?.[0]?.init
 
     const tags: [string, string, string] = [
       findUniqueName(_ast, 'rectangleSegmentA'),
@@ -909,14 +911,14 @@ export class SceneEntities {
       findUniqueName(_ast, 'rectangleSegmentC'),
     ]
 
-    startSketchOn[0].init = createPipeExpression([
+    startSketchOn.init = createPipeExpression([
       startSketchOnInit,
       ...getRectangleCallExpressions(rectangleOrigin, tags),
     ])
 
-    let _recastAst = parse(recast(_ast))
+    const pResult = parse(recast(_ast))
-    if (trap(_recastAst)) return Promise.reject(_recastAst)
+    if (trap(pResult) || !resultIsOk(pResult)) return Promise.reject(pResult)
-    _ast = _recastAst
+    _ast = pResult.program
 
     const { programMemoryOverride, truncatedAst } = await this.setupSketch({
       sketchPathToNode,
@@ -939,7 +941,7 @@ export class SceneEntities {
           'VariableDeclaration'
         )
         if (trap(_node)) return Promise.reject(_node)
-        const sketchInit = _node.node?.declarations?.[0]?.init
+        const sketchInit = _node.node?.declaration.init
 
         const x = (args.intersectionPoint.twoD.x || 0) - rectangleOrigin[0]
         const y = (args.intersectionPoint.twoD.y || 0) - rectangleOrigin[1]
@@ -950,10 +952,9 @@ export class SceneEntities {
 
         const { execState } = await executeAst({
           ast: truncatedAst,
-          useFakeExecutor: true,
           engineCommandManager: this.engineCommandManager,
+          // We make sure to send an empty program memory to denote we mean mock mode.
           programMemoryOverride,
-          idGenerator: kclManager.execState.idGenerator,
         })
         const programMemory = execState.memory
         this.sceneProgramMemory = programMemory
@@ -989,7 +990,7 @@ export class SceneEntities {
           'VariableDeclaration'
         )
         if (trap(_node)) return
-        const sketchInit = _node.node?.declarations?.[0]?.init
+        const sketchInit = _node.node?.declaration.init
 
         if (sketchInit.type !== 'PipeExpression') {
           return
@@ -998,9 +999,10 @@ export class SceneEntities {
         updateRectangleSketch(sketchInit, x, y, tags[0])
 
         const newCode = recast(_ast)
-        let _recastAst = parse(newCode)
+        const pResult = parse(newCode)
-        if (trap(_recastAst)) return
+        if (trap(pResult) || !resultIsOk(pResult))
-        _ast = _recastAst
+          return Promise.reject(pResult)
+        _ast = pResult.program
 
         // Update the primary AST and unequip the rectangle tool
         await kclManager.executeAstMock(_ast)
@@ -1013,10 +1015,9 @@ export class SceneEntities {
 
         const { execState } = await executeAst({
           ast: _ast,
-          useFakeExecutor: true,
           engineCommandManager: this.engineCommandManager,
+          // We make sure to send an empty program memory to denote we mean mock mode.
           programMemoryOverride,
-          idGenerator: kclManager.execState.idGenerator,
         })
         const programMemory = execState.memory
 
@@ -1055,10 +1056,9 @@ export class SceneEntities {
     if (trap(_node1)) return Promise.reject(_node1)
 
     // startSketchOn already exists
-    const variableDeclarationName =
+    const variableDeclarationName = _node1.node?.declaration.id?.name || ''
-      _node1.node?.declarations?.[0]?.id?.name || ''
+    const startSketchOn = _node1.node?.declaration
-    const startSketchOn = _node1.node?.declarations
+    const startSketchOnInit = startSketchOn?.init
-    const startSketchOnInit = startSketchOn?.[0]?.init
 
     const tags: [string, string, string] = [
       findUniqueName(_ast, 'rectangleSegmentA'),
@@ -1066,14 +1066,14 @@ export class SceneEntities {
       findUniqueName(_ast, 'rectangleSegmentC'),
     ]
 
-    startSketchOn[0].init = createPipeExpression([
+    startSketchOn.init = createPipeExpression([
       startSketchOnInit,
       ...getRectangleCallExpressions(rectangleOrigin, tags),
     ])
 
-    let _recastAst = parse(recast(_ast))
+    const pResult = parse(recast(_ast))
-    if (trap(_recastAst)) return Promise.reject(_recastAst)
+    if (trap(pResult) || !resultIsOk(pResult)) return Promise.reject(pResult)
-    _ast = _recastAst
+    _ast = pResult.program
 
     const { programMemoryOverride, truncatedAst } = await this.setupSketch({
       sketchPathToNode,
@@ -1096,7 +1096,7 @@ export class SceneEntities {
           'VariableDeclaration'
         )
         if (trap(_node)) return Promise.reject(_node)
-        const sketchInit = _node.node?.declarations?.[0]?.init
+        const sketchInit = _node.node?.declaration.init
 
         const x = (args.intersectionPoint.twoD.x || 0) - rectangleOrigin[0]
         const y = (args.intersectionPoint.twoD.y || 0) - rectangleOrigin[1]
@@ -1114,10 +1114,9 @@ export class SceneEntities {
 
         const { execState } = await executeAst({
           ast: truncatedAst,
-          useFakeExecutor: true,
           engineCommandManager: this.engineCommandManager,
+          // We make sure to send an empty program memory to denote we mean mock mode.
           programMemoryOverride,
-          idGenerator: kclManager.execState.idGenerator,
         })
         const programMemory = execState.memory
         this.sceneProgramMemory = programMemory
@@ -1153,7 +1152,7 @@ export class SceneEntities {
           'VariableDeclaration'
         )
         if (trap(_node)) return
-        const sketchInit = _node.node?.declarations?.[0]?.init
+        const sketchInit = _node.node?.declaration.init
 
         if (sketchInit.type === 'PipeExpression') {
           updateCenterRectangleSketch(
@@ -1165,9 +1164,10 @@ export class SceneEntities {
             rectangleOrigin[1]
           )
 
-          let _recastAst = parse(recast(_ast))
+          const pResult = parse(recast(_ast))
-          if (trap(_recastAst)) return
+          if (trap(pResult) || !resultIsOk(pResult))
-          _ast = _recastAst
+            return Promise.reject(pResult)
+          _ast = pResult.program
 
           // Update the primary AST and unequip the rectangle tool
           await kclManager.executeAstMock(_ast)
@@ -1180,10 +1180,9 @@ export class SceneEntities {
 
           const { execState } = await executeAst({
             ast: _ast,
-            useFakeExecutor: true,
             engineCommandManager: this.engineCommandManager,
+            // We make sure to send an empty program memory to denote we mean mock mode.
             programMemoryOverride,
-            idGenerator: kclManager.execState.idGenerator,
           })
           const programMemory = execState.memory
 
@@ -1222,12 +1221,11 @@ export class SceneEntities {
       'VariableDeclaration'
     )
     if (trap(_node1)) return Promise.reject(_node1)
-    const variableDeclarationName =
+    const variableDeclarationName = _node1.node?.declaration.id?.name || ''
-      _node1.node?.declarations?.[0]?.id?.name || ''
+    const startSketchOn = _node1.node?.declaration
-    const startSketchOn = _node1.node?.declarations
+    const startSketchOnInit = startSketchOn?.init
-    const startSketchOnInit = startSketchOn?.[0]?.init
 
-    startSketchOn[0].init = createPipeExpression([
+    startSketchOn.init = createPipeExpression([
       startSketchOnInit,
       createCallExpressionStdLib('circle', [
         createObjectExpression({
@@ -1241,9 +1239,9 @@ export class SceneEntities {
       ]),
     ])
 
-    let _recastAst = parse(recast(_ast))
+    const pResult = parse(recast(_ast))
-    if (trap(_recastAst)) return Promise.reject(_recastAst)
+    if (trap(pResult) || !resultIsOk(pResult)) return Promise.reject(pResult)
-    _ast = _recastAst
+    _ast = pResult.program
 
     // do a quick mock execution to get the program memory up-to-date
     await kclManager.executeAstMock(_ast)
@@ -1269,7 +1267,7 @@ export class SceneEntities {
         )
         let modded = structuredClone(truncatedAst)
         if (trap(_node)) return
-        const sketchInit = _node.node?.declarations?.[0]?.init
+        const sketchInit = _node.node.declaration.init
 
         const x = (args.intersectionPoint.twoD.x || 0) - circleCenter[0]
         const y = (args.intersectionPoint.twoD.y || 0) - circleCenter[1]
@@ -1299,10 +1297,9 @@ export class SceneEntities {
 
         const { execState } = await executeAst({
           ast: modded,
-          useFakeExecutor: true,
           engineCommandManager: this.engineCommandManager,
+          // We make sure to send an empty program memory to denote we mean mock mode.
           programMemoryOverride,
-          idGenerator: kclManager.execState.idGenerator,
         })
         const programMemory = execState.memory
         this.sceneProgramMemory = programMemory
@@ -1338,7 +1335,7 @@ export class SceneEntities {
           'VariableDeclaration'
         )
         if (trap(_node)) return
-        const sketchInit = _node.node?.declarations?.[0]?.init
+        const sketchInit = _node.node?.declaration.init
 
         let modded = structuredClone(_ast)
         if (sketchInit.type === 'PipeExpression') {
@@ -1365,9 +1362,10 @@ export class SceneEntities {
 
           const newCode = recast(modded)
           if (err(newCode)) return
-          let _recastAst = parse(newCode)
+          const pResult = parse(newCode)
-          if (trap(_recastAst)) return Promise.reject(_recastAst)
+          if (trap(pResult) || !resultIsOk(pResult))
-          _ast = _recastAst
+            return Promise.reject(pResult)
+          _ast = pResult.program
 
           // Update the primary AST and unequip the rectangle tool
           await kclManager.executeAstMock(_ast)
@@ -1660,7 +1658,7 @@ export class SceneEntities {
         kclManager.programMemory,
         {
           type: 'sourceRange',
-          sourceRange: [node.start, node.end],
+          sourceRange: [node.start, node.end, true],
         },
         getChangeSketchInput()
       )
@@ -1683,10 +1681,9 @@ export class SceneEntities {
         codeManager.updateCodeEditor(code)
       const { execState } = await executeAst({
         ast: truncatedAst,
-        useFakeExecutor: true,
         engineCommandManager: this.engineCommandManager,
+        // We make sure to send an empty program memory to denote we mean mock mode.
         programMemoryOverride,
-        idGenerator: kclManager.execState.idGenerator,
       })
       const programMemory = execState.memory
       this.sceneProgramMemory = programMemory
@@ -1750,7 +1747,7 @@ export class SceneEntities {
   ): (() => SegmentOverlayPayload | null) => {
     const segPathToNode = getNodePathFromSourceRange(
       modifiedAst,
-      segment.__geoMeta.sourceRange
+      sourceRangeFromRust(segment.__geoMeta.sourceRange)
     )
     const sgPaths = sketch.paths
     const originalPathToNodeStr = JSON.stringify(segPathToNode)
@@ -1901,8 +1898,10 @@ export class SceneEntities {
           SEGMENT_BODIES_PLUS_PROFILE_START
         )
         if (parent?.userData?.pathToNode) {
-          const updatedAst = parse(recast(kclManager.ast))
+          const pResult = parse(recast(kclManager.ast))
-          if (trap(updatedAst)) return
+          if (trap(pResult) || !resultIsOk(pResult))
+            return Promise.reject(pResult)
+          const updatedAst = pResult.program
           const _node = getNodeFromPath<Node<CallExpression>>(
             updatedAst,
             parent.userData.pathToNode,
@@ -1910,7 +1909,7 @@ export class SceneEntities {
           )
           if (trap(_node, { suppress: true })) return
           const node = _node.node
-          editorManager.setHighlightRange([[node.start, node.end]])
+          editorManager.setHighlightRange([[node.start, node.end, true]])
           const yellow = 0xffff00
           colorSegment(selected, yellow)
           const extraSegmentGroup = parent.getObjectByName(EXTRA_SEGMENT_HANDLE)
@@ -1955,10 +1954,10 @@ export class SceneEntities {
             })
           return
         }
-        editorManager.setHighlightRange([[0, 0]])
+        editorManager.setHighlightRange([defaultSourceRange()])
       },
       onMouseLeave: ({ selected, ...rest }: OnMouseEnterLeaveArgs) => {
-        editorManager.setHighlightRange([[0, 0]])
+        editorManager.setHighlightRange([defaultSourceRange()])
         const parent = getParentGroup(
           selected,
           SEGMENT_BODIES_PLUS_PROFILE_START
@@ -2057,7 +2056,7 @@ function prepareTruncatedMemoryAndAst(
     'VariableDeclaration'
   )
   if (err(_node)) return _node
-  const variableDeclarationName = _node.node?.declarations?.[0]?.id?.name || ''
+  const variableDeclarationName = _node.node?.declaration.id?.name || ''
   const sg = sketchFromKclValue(
     programMemory.get(variableDeclarationName),
     variableDeclarationName
@@ -2082,28 +2081,30 @@ function prepareTruncatedMemoryAndAst(
       ])
     }
     ;(
-      (_ast.body[bodyIndex] as VariableDeclaration).declarations[0]
+      (_ast.body[bodyIndex] as VariableDeclaration).declaration
         .init as PipeExpression
     ).body.push(newSegment)
     // update source ranges to section we just added.
     // hacks like this wouldn't be needed if the AST put pathToNode info in memory/sketch segments
-    const updatedSrcRangeAst = parse(recast(_ast)) // get source ranges correct since unfortunately we still rely on them
+    const pResult = parse(recast(_ast)) // get source ranges correct since unfortunately we still rely on them
-    if (err(updatedSrcRangeAst)) return updatedSrcRangeAst
+    if (trap(pResult) || !resultIsOk(pResult))
+      return Error('Unexpected compilation error')
+    const updatedSrcRangeAst = pResult.program
 
     const lastPipeItem = (
-      (updatedSrcRangeAst.body[bodyIndex] as VariableDeclaration)
+      (updatedSrcRangeAst.body[bodyIndex] as VariableDeclaration).declaration
-        .declarations[0].init as PipeExpression
+        .init as PipeExpression
     ).body.slice(-1)[0]
 
     ;(
-      (_ast.body[bodyIndex] as VariableDeclaration).declarations[0]
+      (_ast.body[bodyIndex] as VariableDeclaration).declaration
         .init as PipeExpression
     ).body.slice(-1)[0].start = lastPipeItem.start
 
     _ast.end = lastPipeItem.end
     const varDec = _ast.body[bodyIndex] as Node<VariableDeclaration>
     varDec.end = lastPipeItem.end
-    const declarator = varDec.declarations[0]
+    const declarator = varDec.declaration
     declarator.end = lastPipeItem.end
     const init = declarator.init as Node<PipeExpression>
     init.end = lastPipeItem.end
@@ -2140,7 +2141,7 @@ function prepareTruncatedMemoryAndAst(
     if (node.type !== 'VariableDeclaration') {
       continue
     }
-    const name = node.declarations[0].id.name
+    const name = node.declaration.id.name
     const memoryItem = programMemory.get(name)
     if (!memoryItem) {
       continue

src/components/AstExplorer.tsx

@@ -5,6 +5,7 @@ import { useEffect, useRef, useState } from 'react'
 import { trap } from 'lib/trap'
 import { codeToIdSelections } from 'lib/selections'
 import { codeRefFromRange } from 'lang/std/artifactGraph'
+import { defaultSourceRange } from 'lang/wasm'
 
 export function AstExplorer() {
   const { context } = useModelingContext()
@@ -46,7 +47,7 @@ export function AstExplorer() {
       <div
         className="h-full relative"
         onMouseLeave={(e) => {
-          editorManager.setHighlightRange([[0, 0]])
+          editorManager.setHighlightRange([defaultSourceRange()])
         }}
       >
         <pre className="text-xs">
@@ -115,15 +116,19 @@ function DisplayObj({
         hasCursor ? 'bg-violet-100/80 dark:bg-violet-100/25' : ''
       }`}
       onMouseEnter={(e) => {
-        editorManager.setHighlightRange([[obj?.start || 0, obj.end]])
+        editorManager.setHighlightRange([[obj?.start || 0, obj.end, true]])
         e.stopPropagation()
       }}
       onMouseMove={(e) => {
         e.stopPropagation()
-        editorManager.setHighlightRange([[obj?.start || 0, obj.end]])
+        editorManager.setHighlightRange([[obj?.start || 0, obj.end, true]])
       }}
       onClick={(e) => {
-        const range: [number, number] = [obj?.start || 0, obj.end || 0]
+        const range: [number, number, boolean] = [
+          obj?.start || 0,
+          obj.end || 0,
+          true,
+        ]
         const idInfo = codeToIdSelections([
           { codeRef: codeRefFromRange(range, kclManager.ast) },
         ])[0]

src/components/AvailableVarsHelpers.tsx

@@ -1,5 +1,11 @@
 import { useEffect, useState, useRef } from 'react'
-import { parse, BinaryPart, Expr, ProgramMemory } from '../lang/wasm'
+import {
+  parse,
+  BinaryPart,
+  Expr,
+  ProgramMemory,
+  resultIsOk,
+} from '../lang/wasm'
 import {
   createIdentifier,
   createLiteral,
@@ -141,8 +147,9 @@ export function useCalc({
   useEffect(() => {
     try {
       const code = `const __result__ = ${value}`
-      const ast = parse(code)
+      const pResult = parse(code)
-      if (trap(ast)) return
+      if (trap(pResult) || !resultIsOk(pResult)) return
+      const ast = pResult.program
       const _programMem: ProgramMemory = ProgramMemory.empty()
       for (const { key, value } of availableVarInfo.variables) {
         const error = _programMem.set(key, {
@@ -156,18 +163,17 @@ export function useCalc({
       executeAst({
         ast,
         engineCommandManager,
-        useFakeExecutor: true,
+        // We make sure to send an empty program memory to denote we mean mock mode.
         programMemoryOverride: kclManager.programMemory.clone(),
-        idGenerator: kclManager.execState.idGenerator,
       }).then(({ execState }) => {
         const resultDeclaration = ast.body.find(
           (a) =>
             a.type === 'VariableDeclaration' &&
-            a.declarations?.[0]?.id?.name === '__result__'
+            a.declaration.id?.name === '__result__'
         )
         const init =
           resultDeclaration?.type === 'VariableDeclaration' &&
-          resultDeclaration?.declarations?.[0]?.init
+          resultDeclaration?.declaration.init
         const result = execState.memory?.get('__result__')?.value
         setCalcResult(typeof result === 'number' ? String(result) : 'NAN')
         init && setValueNode(init)

src/components/FileTree.tsx

@@ -266,6 +266,7 @@ const FileTreeItem = ({
       // Let the lsp servers know we closed a file.
       onFileClose(currentFile?.path || null, project?.path || null)
       onFileOpen(fileOrDir.path, project?.path || null)
+      kclManager.switchedFiles = true
 
       // Open kcl files
       navigate(`${PATHS.FILE}/${encodeURIComponent(fileOrDir.path)}`)

src/components/ModelingMachineProvider.tsx

@@ -50,6 +50,8 @@ import {
   isSketchPipe,
   Selections,
   updateSelections,
+  canLoftSelection,
+  canShellSelection,
 } from 'lib/selections'
 import { applyConstraintIntersect } from './Toolbar/Intersect'
 import { applyConstraintAbsDistance } from './Toolbar/SetAbsDistance'
@@ -66,8 +68,9 @@ import {
   sketchOnOffsetPlane,
   startSketchOnDefault,
 } from 'lang/modifyAst'
-import { Program, parse, recast } from 'lang/wasm'
+import { Program, parse, recast, resultIsOk } from 'lang/wasm'
 import {
+  doesSceneHaveExtrudedSketch,
   doesSceneHaveSweepableSketch,
   getNodePathFromSourceRange,
   isSingleCursorInPipe,
@@ -82,7 +85,7 @@ import { getVarNameModal } from 'hooks/useToolbarGuards'
 import { err, reportRejection, trap } from 'lib/trap'
 import { useCommandsContext } from 'hooks/useCommandsContext'
 import { modelingMachineEvent } from 'editor/manager'
-import { hasValidFilletSelection } from 'lang/modifyAst/addFillet'
+import { hasValidEdgeTreatmentSelection } from 'lang/modifyAst/addEdgeTreatment'
 import {
   ExportIntent,
   EngineConnectionStateType,
@@ -569,6 +572,39 @@ export const ModelingMachineProvider = ({
           if (err(canSweep)) return false
           return canSweep
         },
+        'has valid loft selection': ({ context: { selectionRanges } }) => {
+          const hasNoSelection =
+            selectionRanges.graphSelections.length === 0 ||
+            isRangeBetweenCharacters(selectionRanges) ||
+            isSelectionLastLine(selectionRanges, codeManager.code)
+
+          if (hasNoSelection) {
+            const count = 2
+            return doesSceneHaveSweepableSketch(kclManager.ast, count)
+          }
+
+          const canLoft = canLoftSelection(selectionRanges)
+          if (err(canLoft)) return false
+          return canLoft
+        },
+        'has valid shell selection': ({
+          context: { selectionRanges },
+          event,
+        }) => {
+          const hasNoSelection =
+            selectionRanges.graphSelections.length === 0 ||
+            isRangeBetweenCharacters(selectionRanges) ||
+            isSelectionLastLine(selectionRanges, codeManager.code)
+
+          if (hasNoSelection) {
+            return doesSceneHaveExtrudedSketch(kclManager.ast)
+          }
+
+          const canShell = canShellSelection(selectionRanges)
+          console.log('canShellSelection', canShellSelection(selectionRanges))
+          if (err(canShell)) return false
+          return canShell
+        },
         'has valid selection for deletion': ({
           context: { selectionRanges },
         }) => {
@@ -576,8 +612,10 @@ export const ModelingMachineProvider = ({
           if (selectionRanges.graphSelections.length <= 0) return false
           return true
         },
-        'has valid fillet selection': ({ context: { selectionRanges } }) => {
+        'has valid edge treatment selection': ({
-          return hasValidFilletSelection({
+          context: { selectionRanges },
+        }) => {
+          return hasValidEdgeTreatmentSelection({
             selectionRanges,
             ast: kclManager.ast,
             code: codeManager.code,
@@ -594,15 +632,11 @@ export const ModelingMachineProvider = ({
           )
         },
         'Has exportable geometry': () => {
-          if (
+          if (!kclManager.hasErrors() && kclManager.ast.body.length > 0)
-            kclManager.kclErrors.length === 0 &&
-            kclManager.ast.body.length > 0
-          )
             return true
           else {
             let errorMessage = 'Unable to Export '
-            if (kclManager.kclErrors.length > 0)
+            if (kclManager.hasErrors()) errorMessage += 'due to KCL Errors'
-              errorMessage += 'due to KCL Errors'
             else if (kclManager.ast.body.length === 0)
               errorMessage += 'due to Empty Scene'
             console.error(errorMessage)
@@ -720,7 +754,11 @@ export const ModelingMachineProvider = ({
                 constraint: 'setHorzDistance',
                 selectionRanges,
               })
-            const _modifiedAst = parse(recast(modifiedAst))
+            const pResult = parse(recast(modifiedAst))
+            if (trap(pResult) || !resultIsOk(pResult))
+              return Promise.reject(new Error('Unexpected compilation error'))
+            const _modifiedAst = pResult.program
+
             if (!sketchDetails)
               return Promise.reject(new Error('No sketch details'))
             const updatedPathToNode = updatePathToNodeFromMap(
@@ -761,7 +799,10 @@ export const ModelingMachineProvider = ({
                 constraint: 'setVertDistance',
                 selectionRanges,
               })
-            const _modifiedAst = parse(recast(modifiedAst))
+            const pResult = parse(recast(modifiedAst))
+            if (trap(pResult) || !resultIsOk(pResult))
+              return Promise.reject(new Error('Unexpected compilation error'))
+            const _modifiedAst = pResult.program
             if (!sketchDetails)
               return Promise.reject(new Error('No sketch details'))
             const updatedPathToNode = updatePathToNodeFromMap(
@@ -809,7 +850,10 @@ export const ModelingMachineProvider = ({
                   selectionRanges,
                   angleOrLength: 'setAngle',
                 }))
-            const _modifiedAst = parse(recast(modifiedAst))
+            const pResult = parse(recast(modifiedAst))
+            if (trap(pResult) || !resultIsOk(pResult))
+              return Promise.reject(new Error('Unexpected compilation error'))
+            const _modifiedAst = pResult.program
             if (err(_modifiedAst)) return Promise.reject(_modifiedAst)
 
             if (!sketchDetails)
@@ -851,7 +895,10 @@ export const ModelingMachineProvider = ({
               await applyConstraintAngleLength({
                 selectionRanges,
               })
-            const _modifiedAst = parse(recast(modifiedAst))
+            const pResult = parse(recast(modifiedAst))
+            if (trap(pResult) || !resultIsOk(pResult))
+              return Promise.reject(new Error('Unexpected compilation error'))
+            const _modifiedAst = pResult.program
             if (!sketchDetails)
               return Promise.reject(new Error('No sketch details'))
             const updatedPathToNode = updatePathToNodeFromMap(
@@ -891,7 +938,10 @@ export const ModelingMachineProvider = ({
               await applyConstraintIntersect({
                 selectionRanges,
               })
-            const _modifiedAst = parse(recast(modifiedAst))
+            const pResult = parse(recast(modifiedAst))
+            if (trap(pResult) || !resultIsOk(pResult))
+              return Promise.reject(new Error('Unexpected compilation error'))
+            const _modifiedAst = pResult.program
             if (!sketchDetails)
               return Promise.reject(new Error('No sketch details'))
             const updatedPathToNode = updatePathToNodeFromMap(
@@ -932,7 +982,10 @@ export const ModelingMachineProvider = ({
                 constraint: 'xAbs',
                 selectionRanges,
               })
-            const _modifiedAst = parse(recast(modifiedAst))
+            const pResult = parse(recast(modifiedAst))
+            if (trap(pResult) || !resultIsOk(pResult))
+              return Promise.reject(new Error('Unexpected compilation error'))
+            const _modifiedAst = pResult.program
             if (!sketchDetails)
               return Promise.reject(new Error('No sketch details'))
             const updatedPathToNode = updatePathToNodeFromMap(
@@ -973,7 +1026,10 @@ export const ModelingMachineProvider = ({
                 constraint: 'yAbs',
                 selectionRanges,
               })
-            const _modifiedAst = parse(recast(modifiedAst))
+            const pResult = parse(recast(modifiedAst))
+            if (trap(pResult) || !resultIsOk(pResult))
+              return Promise.reject(new Error('Unexpected compilation error'))
+            const _modifiedAst = pResult.program
             if (!sketchDetails)
               return Promise.reject(new Error('No sketch details'))
             const updatedPathToNode = updatePathToNodeFromMap(
@@ -1014,9 +1070,10 @@ export const ModelingMachineProvider = ({
             const { variableName } = await getVarNameModal({
               valueName: data?.variableName || 'var',
             })
-            let parsed = parse(recast(kclManager.ast))
+            let pResult = parse(recast(kclManager.ast))
-            if (trap(parsed)) return Promise.reject(parsed)
+            if (trap(pResult) || !resultIsOk(pResult))
-            parsed = parsed as Node<Program>
+              return Promise.reject(new Error('Unexpected compilation error'))
+            let parsed = pResult.program
 
             const { modifiedAst: _modifiedAst, pathToReplacedNode } =
               moveValueIntoNewVariablePath(
@@ -1025,7 +1082,11 @@ export const ModelingMachineProvider = ({
                 data?.pathToNode || [],
                 variableName
               )
-            parsed = parse(recast(_modifiedAst))
+            pResult = parse(recast(_modifiedAst))
+            if (trap(pResult) || !resultIsOk(pResult))
+              return Promise.reject(new Error('Unexpected compilation error'))
+            parsed = pResult.program
+
             if (trap(parsed)) return Promise.reject(parsed)
             parsed = parsed as Node<Program>
             if (!pathToReplacedNode)

src/components/ModelingSidebar/ModelingPanes/KclEditorMenu.tsx

@@ -40,7 +40,9 @@ export const KclEditorMenu = ({ children }: PropsWithChildren) => {
         <Menu.Items className="absolute right-0 left-auto w-72 flex flex-col gap-1 divide-y divide-chalkboard-20 dark:divide-chalkboard-70 align-stretch px-0 py-1 bg-chalkboard-10 dark:bg-chalkboard-100 rounded-sm shadow-lg border border-solid border-chalkboard-20/50 dark:border-chalkboard-80/50">
           <Menu.Item>
             <button
-              onClick={() => kclManager.format()}
+              onClick={() => {
+                kclManager.format().catch(reportRejection)
+              }}
               className={styles.button}
             >
               <span>Format code</span>

src/components/ModelingSidebar/ModelingPanes/MemoryPane.test.tsx

@@ -1,6 +1,6 @@
 import { processMemory } from './MemoryPane'
 import { enginelessExecutor } from '../../../lib/testHelpers'
-import { initPromise, parse, ProgramMemory } from '../../../lang/wasm'
+import { assertParse, initPromise, ProgramMemory } from '../../../lang/wasm'
 
 beforeAll(async () => {
   await initPromise
@@ -28,12 +28,16 @@ describe('processMemory', () => {
     |> lineTo([0.98, 5.16], %)
     |> lineTo([2.15, 4.32], %)
     // |> rx(90, %)`
-    const ast = parse(code)
+    const ast = assertParse(code)
     const execState = await enginelessExecutor(ast, ProgramMemory.empty())
     const output = processMemory(execState.memory)
     expect(output.myVar).toEqual(5)
     expect(output.otherVar).toEqual(3)
     expect(output).toEqual({
+      HALF_TURN: 180,
+      QUARTER_TURN: 90,
+      THREE_QUARTER_TURN: 270,
+      ZERO: 0,
       myVar: 5,
       myFn: '__function(a)__',
       otherVar: 3,

src/components/ModelingSidebar/ModelingPanes/index.tsx

@@ -90,7 +90,7 @@ export const sidebarPanes: SidebarPane[] = [
     keybinding: 'Shift + C',
     showBadge: {
       value: ({ kclContext }) => {
-        return kclContext.errors.length
+        return kclContext.diagnostics.length
       },
       onClick: (e) => {
         e.preventDefault()

src/components/ModelingSidebar/ModelingSidebar.tsx

@@ -53,7 +53,7 @@ export function ModelingSidebar({ paneOpacity }: ModelingSidebarProps) {
       settings: settings.context,
       platform: getPlatformString(),
     }),
-    [kclContext.errors, settings.context]
+    [kclContext.diagnostics, settings.context]
   )
 
   const sidebarActions: SidebarAction[] = [

src/components/ProjectSidebarMenu.tsx

@@ -10,7 +10,7 @@ import { APP_NAME } from 'lib/constants'
 import { useCommandsContext } from 'hooks/useCommandsContext'
 import { CustomIcon } from './CustomIcon'
 import { useLspContext } from './LspProvider'
-import { engineCommandManager } from 'lib/singletons'
+import { engineCommandManager, kclManager } from 'lib/singletons'
 import { MachineManagerContext } from 'components/MachineManagerProvider'
 import usePlatform from 'hooks/usePlatform'
 import { useAbsoluteFilePath } from 'hooks/useAbsoluteFilePath'
@@ -68,8 +68,7 @@ function AppLogoLink({
       data-testid="app-logo"
       onClick={() => {
         onProjectClose(file || null, project?.path || null, false)
-        // Clear the scene and end the session.
+        kclManager.switchedFiles = true
-        engineCommandManager.endSession()
       }}
       to={PATHS.HOME}
       className={wrapperClassName + ' hover:before:brightness-110'}
@@ -190,8 +189,7 @@ function ProjectMenuPopover({
           className: !isDesktop() ? 'hidden' : '',
           onClick: () => {
             onProjectClose(file || null, project?.path || null, true)
-            // Clear the scene and end the session.
+            kclManager.switchedFiles = true
-            engineCommandManager.endSession()
           },
         },
       ].filter(

src/components/Toolbar/RemoveConstrainingValues.tsx

@@ -40,7 +40,10 @@ export function removeConstrainingValuesInfo({
         otherSelections: [],
         graphSelections: nodes.map(
           (node): Selection => ({
-            codeRef: codeRefFromRange([node.start, node.end], kclManager.ast),
+            codeRef: codeRefFromRange(
+              [node.start, node.end, true],
+              kclManager.ast
+            ),
           })
         ),
       }

src/editor/manager.ts

@@ -139,7 +139,9 @@ export default class EditorManager {
   }
 
   setHighlightRange(range: Array<Selection['codeRef']['range']>): void {
-    this._highlightRange = range
+    this._highlightRange = range.map((s): [number, number] => {
+      return [s[0], s[1]]
+    })
 
     const selectionsWithSafeEnds = range.map((s): [number, number] => {
       const safeEnd = Math.min(s[1], this._editorView?.state.doc.length || s[1])

src/hooks/useEngineConnectionSubscriptions.ts

@@ -18,7 +18,7 @@ import {
 import { err, reportRejection } from 'lib/trap'
 import { DefaultPlaneStr, getFaceDetails } from 'clientSideScene/sceneEntities'
 import { getNodeFromPath, getNodePathFromSourceRange } from 'lang/queryAst'
-import { CallExpression } from 'lang/wasm'
+import { CallExpression, defaultSourceRange } from 'lang/wasm'
 import { EdgeCutInfo, ExtrudeFacePlane } from 'machines/modelingMachine'
 
 export function useEngineConnectionSubscriptions() {
@@ -46,7 +46,7 @@ export function useEngineConnectionSubscriptions() {
           (editorManager.highlightRange[0][0] !== 0 &&
             editorManager.highlightRange[0][1] !== 0)
         ) {
-          editorManager.setHighlightRange([[0, 0]])
+          editorManager.setHighlightRange([defaultSourceRange()])
         }
       },
     })
@@ -201,7 +201,7 @@ export function useEngineConnectionSubscriptions() {
               const { z_axis, y_axis, origin } = faceInfo
               const sketchPathToNode = getNodePathFromSourceRange(
                 kclManager.ast,
-                err(codeRef) ? [0, 0] : codeRef.range
+                err(codeRef) ? defaultSourceRange() : codeRef.range
               )
 
               const getEdgeCutMeta = (): null | EdgeCutInfo => {

src/lang/KclProvider.tsx

@@ -1,15 +1,15 @@
-import { KCLError } from './errors'
 import { createContext, useContext, useEffect, useState } from 'react'
 import { type IndexLoaderData } from 'lib/types'
 import { useLoaderData } from 'react-router-dom'
 import { codeManager, kclManager } from 'lib/singletons'
+import { Diagnostic } from '@codemirror/lint'
 
 const KclContext = createContext({
   code: codeManager?.code || '',
   programMemory: kclManager?.programMemory,
   ast: kclManager?.ast,
   isExecuting: kclManager?.isExecuting,
-  errors: kclManager?.kclErrors,
+  diagnostics: kclManager?.diagnostics,
   logs: kclManager?.logs,
   wasmInitFailed: kclManager?.wasmInitFailed,
 })
@@ -32,7 +32,7 @@ export function KclContextProvider({
   const [programMemory, setProgramMemory] = useState(kclManager.programMemory)
   const [ast, setAst] = useState(kclManager.ast)
   const [isExecuting, setIsExecuting] = useState(false)
-  const [errors, setErrors] = useState<KCLError[]>([])
+  const [diagnostics, setErrors] = useState<Diagnostic[]>([])
   const [logs, setLogs] = useState<string[]>([])
   const [wasmInitFailed, setWasmInitFailed] = useState(false)
 
@@ -57,7 +57,7 @@ export function KclContextProvider({
         programMemory,
         ast,
         isExecuting,
-        errors,
+        diagnostics,
         logs,
         wasmInitFailed,
       }}

src/lang/KclSingleton.ts

@@ -1,6 +1,10 @@
 import { executeAst, lintAst } from 'lang/langHelpers'
 import { Selections } from 'lib/selections'
-import { KCLError, kclErrorsToDiagnostics } from './errors'
+import {
+  KCLError,
+  complilationErrorsToDiagnostics,
+  kclErrorsToDiagnostics,
+} from './errors'
 import { uuidv4 } from 'lib/utils'
 import { EngineCommandManager } from './std/engineConnection'
 import { err } from 'lib/trap'
@@ -8,6 +12,7 @@ import { EXECUTE_AST_INTERRUPT_ERROR_MESSAGE } from 'lib/constants'
 
 import {
   CallExpression,
+  clearSceneAndBustCache,
   emptyExecState,
   ExecState,
   initPromise,
@@ -51,11 +56,12 @@ export class KclManager {
   private _programMemory: ProgramMemory = ProgramMemory.empty()
   lastSuccessfulProgramMemory: ProgramMemory = ProgramMemory.empty()
   private _logs: string[] = []
-  private _lints: Diagnostic[] = []
+  private _diagnostics: Diagnostic[] = []
-  private _kclErrors: KCLError[] = []
   private _isExecuting = false
   private _executeIsStale: ExecuteArgs | null = null
   private _wasmInitFailed = true
+  private _hasErrors = false
+  private _switchedFiles = false
 
   engineCommandManager: EngineCommandManager
 
@@ -63,7 +69,7 @@ export class KclManager {
   private _astCallBack: (arg: Node<Program>) => void = () => {}
   private _programMemoryCallBack: (arg: ProgramMemory) => void = () => {}
   private _logsCallBack: (arg: string[]) => void = () => {}
-  private _kclErrorsCallBack: (arg: KCLError[]) => void = () => {}
+  private _kclErrorsCallBack: (errors: Diagnostic[]) => void = () => {}
   private _wasmInitFailedCallback: (arg: boolean) => void = () => {}
   private _executeCallback: () => void = () => {}
 
@@ -75,6 +81,10 @@ export class KclManager {
     this._astCallBack(ast)
   }
 
+  set switchedFiles(switchedFiles: boolean) {
+    this._switchedFiles = switchedFiles
+  }
+
   get programMemory() {
     return this._programMemory
   }
@@ -84,7 +94,7 @@ export class KclManager {
     this._programMemoryCallBack(programMemory)
   }
 
-  set execState(execState) {
+  private set execState(execState) {
     this._execState = execState
     this.programMemory = execState.memory
   }
@@ -101,38 +111,28 @@ export class KclManager {
     this._logsCallBack(logs)
   }
 
-  get lints() {
+  get diagnostics() {
-    return this._lints
+    return this._diagnostics
   }
 
-  set lints(lints) {
+  set diagnostics(ds) {
-    if (lints === this._lints) return
+    if (ds === this._diagnostics) return
-    this._lints = lints
+    this._diagnostics = ds
-    // Run the lints through the diagnostics.
-    this.kclErrors = this._kclErrors
-  }
-
-  get kclErrors() {
-    return this._kclErrors
-  }
-  set kclErrors(kclErrors) {
-    if (kclErrors === this._kclErrors && this.lints.length === 0) return
-    this._kclErrors = kclErrors
     this.setDiagnosticsForCurrentErrors()
-    this._kclErrorsCallBack(kclErrors)
+  }
+
+  addDiagnostics(ds: Diagnostic[]) {
+    if (ds.length === 0) return
+    this.diagnostics = this.diagnostics.concat(ds)
+  }
+
+  hasErrors(): boolean {
+    return this._hasErrors
   }
 
   setDiagnosticsForCurrentErrors() {
-    let diagnostics = kclErrorsToDiagnostics(this.kclErrors)
+    editorManager?.setDiagnostics(this.diagnostics)
-    if (this.lints.length > 0) {
+    this._kclErrorsCallBack(this.diagnostics)
-      diagnostics = diagnostics.concat(this.lints)
-    }
-    editorManager?.setDiagnostics(diagnostics)
-  }
-
-  addKclErrors(kclErrors: KCLError[]) {
-    if (kclErrors.length === 0) return
-    this.kclErrors = this.kclErrors.concat(kclErrors)
   }
 
   get isExecuting() {
@@ -172,8 +172,12 @@ export class KclManager {
     this.engineCommandManager = engineCommandManager
 
     // eslint-disable-next-line @typescript-eslint/no-floating-promises
-    this.ensureWasmInit().then(() => {
+    this.ensureWasmInit().then(async () => {
-      this.ast = this.safeParse(codeManager.code) || this.ast
+      await this.safeParse(codeManager.code).then((ast) => {
+        if (ast) {
+          this.ast = ast
+        }
+      })
     })
   }
 
@@ -188,7 +192,7 @@ export class KclManager {
     setProgramMemory: (arg: ProgramMemory) => void
     setAst: (arg: Node<Program>) => void
     setLogs: (arg: string[]) => void
-    setKclErrors: (arg: KCLError[]) => void
+    setKclErrors: (errors: Diagnostic[]) => void
     setIsExecuting: (arg: boolean) => void
     setWasmInitFailed: (arg: boolean) => void
   }) {
@@ -217,20 +221,50 @@ export class KclManager {
     }
   }
 
-  safeParse(code: string): Node<Program> | null {
+  // (jess) I'm not in love with this, but it ensures we clear the scene and
-    const ast = parse(code)
+  // bust the cache on
-    this.lints = []
+  // errors from parsing when opening new files.
-    this.kclErrors = []
+  // Why not just clear the cache on all parse errors, you ask? well its actually
-    if (!err(ast)) return ast
+  // really nice to keep the cache on parse errors within the same file, and
-    const kclerror: KCLError = ast as KCLError
+  // only bust on engine errors esp if they take a long time to execute and
+  // you hit the wrong key!
+  private async checkIfSwitchedFilesShouldClear() {
+    // If we were switching files and we hit an error on parse we need to bust
+    // the cache and clear the scene.
+    if (this._hasErrors && this._switchedFiles) {
+      await clearSceneAndBustCache(this.engineCommandManager)
+    } else if (this._switchedFiles) {
+      // Reset the switched files boolean.
+      this._switchedFiles = false
+    }
+  }
 
-    this.addKclErrors([kclerror])
+  async safeParse(code: string): Promise<Node<Program> | null> {
-    // TODO: re-eval if session should end?
+    const result = parse(code)
-    if (kclerror.msg === 'file is empty')
+    this.diagnostics = []
-      this.engineCommandManager?.endSession()
+    this._hasErrors = false
+
+    if (err(result)) {
+      const kclerror: KCLError = result as KCLError
+      this.diagnostics = kclErrorsToDiagnostics([kclerror])
+      this._hasErrors = true
+
+      await this.checkIfSwitchedFilesShouldClear()
       return null
     }
 
+    this.addDiagnostics(complilationErrorsToDiagnostics(result.errors))
+    this.addDiagnostics(complilationErrorsToDiagnostics(result.warnings))
+    if (result.errors.length > 0) {
+      this._hasErrors = true
+
+      await this.checkIfSwitchedFilesShouldClear()
+      return null
+    }
+
+    return result.program
+  }
+
   async ensureWasmInit() {
     try {
       await initPromise
@@ -267,19 +301,16 @@ export class KclManager {
     this._cancelTokens.set(currentExecutionId, false)
 
     this.isExecuting = true
-    // Make sure we clear before starting again. End session will do this.
-    this.engineCommandManager?.endSession()
     await this.ensureWasmInit()
     const { logs, errors, execState, isInterrupted } = await executeAst({
       ast,
-      idGenerator: this.execState.idGenerator,
       engineCommandManager: this.engineCommandManager,
     })
 
     // Program was not interrupted, setup the scene
     // Do not send send scene commands if the program was interrupted, go to clean up
     if (!isInterrupted) {
-      this.lints = await lintAst({ ast: ast })
+      this.addDiagnostics(await lintAst({ ast: ast }))
 
       sceneInfra.modelingSend({ type: 'code edit during sketch' })
       setSelectionFilterToDefault(execState.memory, this.engineCommandManager)
@@ -321,9 +352,7 @@ export class KclManager {
 
     this.logs = logs
     // Do not add the errors since the program was interrupted and the error is not a real KCL error
-    this.addKclErrors(isInterrupted ? [] : errors)
+    this.addDiagnostics(isInterrupted ? [] : kclErrorsToDiagnostics(errors))
-    // Reset the next ID index so that we reuse the previous IDs next time.
-    execState.idGenerator.nextId = 0
     this.execState = execState
     if (!errors.length) {
       this.lastSuccessfulProgramMemory = execState.memory
@@ -355,7 +384,7 @@ export class KclManager {
       console.error(newCode)
       return
     }
-    const newAst = this.safeParse(newCode)
+    const newAst = await this.safeParse(newCode)
     if (!newAst) {
       this.clearAst()
       return
@@ -364,13 +393,13 @@ export class KclManager {
 
     const { logs, errors, execState } = await executeAst({
       ast: newAst,
-      idGenerator: this.execState.idGenerator,
       engineCommandManager: this.engineCommandManager,
-      useFakeExecutor: true,
+      // We make sure to send an empty program memory to denote we mean mock mode.
+      programMemoryOverride: ProgramMemory.empty(),
     })
 
     this._logs = logs
-    this._kclErrors = errors
+    this.addDiagnostics(kclErrorsToDiagnostics(errors))
     this._execState = execState
     this._programMemory = execState.memory
     if (!errors.length) {
@@ -398,7 +427,7 @@ export class KclManager {
           ...artifact,
           codeRef: {
             ...artifact.codeRef,
-            range: [node.start, node.end],
+            range: [node.start, node.end, true],
           },
         })
       }
@@ -410,7 +439,7 @@ export class KclManager {
     })
   }
   async executeCode(zoomToFit?: boolean): Promise<void> {
-    const ast = this.safeParse(codeManager.code)
+    const ast = await this.safeParse(codeManager.code)
     if (!ast) {
       this.clearAst()
       return
@@ -418,9 +447,9 @@ export class KclManager {
     this.ast = { ...ast }
     return this.executeAst({ zoomToFit })
   }
-  format() {
+  async format() {
     const originalCode = codeManager.code
-    const ast = this.safeParse(originalCode)
+    const ast = await this.safeParse(originalCode)
     if (!ast) {
       this.clearAst()
       return
@@ -460,7 +489,7 @@ export class KclManager {
     const newCode = recast(ast)
     if (err(newCode)) return Promise.reject(newCode)
 
-    const astWithUpdatedSource = this.safeParse(newCode)
+    const astWithUpdatedSource = await this.safeParse(newCode)
     if (!astWithUpdatedSource) return Promise.reject(new Error('bad ast'))
     let returnVal: Selections | undefined = undefined
 
@@ -490,7 +519,7 @@ export class KclManager {
         if (start && end) {
           returnVal.graphSelections.push({
             codeRef: {
-              range: [start, end],
+              range: [start, end, true],
               pathToNode: path,
             },
           })

src/lang/artifact.test.ts

@@ -1,4 +1,4 @@
-import { parse, initPromise } from './wasm'
+import { assertParse, initPromise } from './wasm'
 import { enginelessExecutor } from '../lib/testHelpers'
 
 beforeAll(async () => {
@@ -14,7 +14,7 @@ const mySketch001 = startSketchOn('XY')
   |> lineTo([-1.59, -1.54], %)
   |> lineTo([0.46, -5.82], %)
   // |> rx(45, %)`
-    const execState = await enginelessExecutor(parse(code))
+    const execState = await enginelessExecutor(assertParse(code))
     // @ts-ignore
     const sketch001 = execState.memory.get('mySketch001')
     expect(sketch001).toEqual({
@@ -67,7 +67,7 @@ const mySketch001 = startSketchOn('XY')
   |> lineTo([0.46, -5.82], %)
   // |> rx(45, %)
   |> extrude(2, %)`
-    const execState = await enginelessExecutor(parse(code))
+    const execState = await enginelessExecutor(assertParse(code))
     // @ts-ignore
     const sketch001 = execState.memory.get('mySketch001')
     expect(sketch001).toEqual({
@@ -147,7 +147,7 @@ const sk2 = startSketchOn('XY')
   |> extrude(2, %)
 
 `
-    const execState = await enginelessExecutor(parse(code))
+    const execState = await enginelessExecutor(assertParse(code))
     const programMemory = execState.memory
     // @ts-ignore
     const geos = [programMemory.get('theExtrude'), programMemory.get('sk2')]

src/lang/errors.test.ts

@@ -8,20 +8,14 @@ describe('test kclErrToDiagnostic', () => {
         message: '',
         kind: 'semantic',
         msg: 'Semantic error',
-        sourceRanges: [
+        sourceRange: [0, 1, true],
-          [0, 1, 0],
-          [2, 3, 0],
-        ],
       },
       {
         name: '',
         message: '',
         kind: 'type',
         msg: 'Type error',
-        sourceRanges: [
+        sourceRange: [4, 5, true],
-          [4, 5, 0],
-          [6, 7, 0],
-        ],
       },
     ]
     const diagnostics = kclErrorsToDiagnostics(errors)
@@ -32,24 +26,12 @@ describe('test kclErrToDiagnostic', () => {
         message: 'Semantic error',
         severity: 'error',
       },
-      {
-        from: 2,
-        to: 3,
-        message: 'Semantic error',
-        severity: 'error',
-      },
       {
         from: 4,
         to: 5,
         message: 'Type error',
         severity: 'error',
       },
-      {
-        from: 6,
-        to: 7,
-        message: 'Type error',
-        severity: 'error',
-      },
     ])
   })
 })

src/lang/errors.ts

@@ -1,88 +1,90 @@
 import { KclError as RustKclError } from '../wasm-lib/kcl/bindings/KclError'
+import { CompilationError } from 'wasm-lib/kcl/bindings/CompilationError'
 import { Diagnostic as CodeMirrorDiagnostic } from '@codemirror/lint'
 import { posToOffset } from '@kittycad/codemirror-lsp-client'
 import { Diagnostic as LspDiagnostic } from 'vscode-languageserver-protocol'
 import { Text } from '@codemirror/state'
-
+import { EditorView } from 'codemirror'
-const TOP_LEVEL_MODULE_ID = 0
+import { SourceRange } from 'lang/wasm'
 
 type ExtractKind<T> = T extends { kind: infer K } ? K : never
 export class KCLError extends Error {
   kind: ExtractKind<RustKclError> | 'name'
-  sourceRanges: [number, number, number][]
+  sourceRange: SourceRange
   msg: string
+
   constructor(
     kind: ExtractKind<RustKclError> | 'name',
     msg: string,
-    sourceRanges: [number, number, number][]
+    sourceRange: SourceRange
   ) {
     super()
     this.kind = kind
     this.msg = msg
-    this.sourceRanges = sourceRanges
+    this.sourceRange = sourceRange
     Object.setPrototypeOf(this, KCLError.prototype)
   }
 }
 
 export class KCLLexicalError extends KCLError {
-  constructor(msg: string, sourceRanges: [number, number, number][]) {
+  constructor(msg: string, sourceRange: SourceRange) {
-    super('lexical', msg, sourceRanges)
+    super('lexical', msg, sourceRange)
     Object.setPrototypeOf(this, KCLSyntaxError.prototype)
   }
 }
 
 export class KCLInternalError extends KCLError {
-  constructor(msg: string, sourceRanges: [number, number, number][]) {
+  constructor(msg: string, sourceRange: SourceRange) {
-    super('internal', msg, sourceRanges)
+    super('internal', msg, sourceRange)
     Object.setPrototypeOf(this, KCLSyntaxError.prototype)
   }
 }
 
 export class KCLSyntaxError extends KCLError {
-  constructor(msg: string, sourceRanges: [number, number, number][]) {
+  constructor(msg: string, sourceRange: SourceRange) {
-    super('syntax', msg, sourceRanges)
+    super('syntax', msg, sourceRange)
     Object.setPrototypeOf(this, KCLSyntaxError.prototype)
   }
 }
 
 export class KCLSemanticError extends KCLError {
-  constructor(msg: string, sourceRanges: [number, number, number][]) {
+  constructor(msg: string, sourceRange: SourceRange) {
-    super('semantic', msg, sourceRanges)
+    super('semantic', msg, sourceRange)
     Object.setPrototypeOf(this, KCLSemanticError.prototype)
   }
 }
 
 export class KCLTypeError extends KCLError {
-  constructor(msg: string, sourceRanges: [number, number, number][]) {
+  constructor(msg: string, sourceRange: SourceRange) {
-    super('type', msg, sourceRanges)
+    super('type', msg, sourceRange)
     Object.setPrototypeOf(this, KCLTypeError.prototype)
   }
 }
 
 export class KCLUnimplementedError extends KCLError {
-  constructor(msg: string, sourceRanges: [number, number, number][]) {
+  constructor(msg: string, sourceRange: SourceRange) {
-    super('unimplemented', msg, sourceRanges)
+    super('unimplemented', msg, sourceRange)
     Object.setPrototypeOf(this, KCLUnimplementedError.prototype)
   }
 }
 
 export class KCLUnexpectedError extends KCLError {
-  constructor(msg: string, sourceRanges: [number, number, number][]) {
+  constructor(msg: string, sourceRange: SourceRange) {
-    super('unexpected', msg, sourceRanges)
+    super('unexpected', msg, sourceRange)
     Object.setPrototypeOf(this, KCLUnexpectedError.prototype)
   }
 }
 
 export class KCLValueAlreadyDefined extends KCLError {
-  constructor(key: string, sourceRanges: [number, number, number][]) {
+  constructor(key: string, sourceRange: SourceRange) {
-    super('name', `Key ${key} was already defined elsewhere`, sourceRanges)
+    super('name', `Key ${key} was already defined elsewhere`, sourceRange)
     Object.setPrototypeOf(this, KCLValueAlreadyDefined.prototype)
   }
 }
 
 export class KCLUndefinedValueError extends KCLError {
-  constructor(key: string, sourceRanges: [number, number, number][]) {
+  constructor(key: string, sourceRange: SourceRange) {
-    super('name', `Key ${key} has not been defined`, sourceRanges)
+    super('name', `Key ${key} has not been defined`, sourceRange)
     Object.setPrototypeOf(this, KCLUndefinedValueError.prototype)
   }
 }
@@ -99,27 +101,14 @@ export function lspDiagnosticsToKclErrors(
     .flatMap(
       ({ range, message }) =>
         new KCLError('unexpected', message, [
-          [
           posToOffset(doc, range.start)!,
           posToOffset(doc, range.end)!,
-            TOP_LEVEL_MODULE_ID,
+          true,
-          ],
         ])
     )
-    .filter(({ sourceRanges }) => {
-      const [from, to, moduleId] = sourceRanges[0]
-      return (
-        from !== null &&
-        to !== null &&
-        from !== undefined &&
-        to !== undefined &&
-        // Filter out errors that are not from the top-level module.
-        moduleId === TOP_LEVEL_MODULE_ID
-      )
-    })
     .sort((a, b) => {
-      const c = a.sourceRanges[0][0]
+      const c = a.sourceRange[0]
-      const d = b.sourceRanges[0][0]
+      const d = b.sourceRange[0]
       switch (true) {
         case c < d:
           return -1
@@ -137,17 +126,48 @@ export function lspDiagnosticsToKclErrors(
 export function kclErrorsToDiagnostics(
   errors: KCLError[]
 ): CodeMirrorDiagnostic[] {
-  return errors?.flatMap((err) => {
+  return errors
-    const sourceRanges: CodeMirrorDiagnostic[] = err.sourceRanges
+    ?.filter((err) => err.sourceRange[2])
-      // Filter out errors that are not from the top-level module.
+    .map((err) => {
-      .filter(([_start, _end, moduleId]) => moduleId === TOP_LEVEL_MODULE_ID)
+      return {
-      .map(([from, to]) => {
+        from: err.sourceRange[0],
-        return { from, to, message: err.msg, severity: 'error' }
+        to: err.sourceRange[1],
-      })
+        message: err.msg,
-    // Make sure we didn't filter out all the source ranges.
+        severity: 'error',
-    if (sourceRanges.length === 0) {
+      }
-      sourceRanges.push({ from: 0, to: 0, message: err.msg, severity: 'error' })
+    })
+}
+
+export function complilationErrorsToDiagnostics(
+  errors: CompilationError[]
+): CodeMirrorDiagnostic[] {
+  return errors
+    ?.filter((err) => err.sourceRange[2] === 0)
+    .map((err) => {
+      let severity: any = 'error'
+      if (err.severity === 'Warning') {
+        severity = 'warning'
+      }
+      let actions
+      const suggestion = err.suggestion
+      if (suggestion) {
+        actions = [
+          {
+            name: suggestion.title,
+            apply: (view: EditorView, from: number, to: number) => {
+              view.dispatch({
+                changes: { from, to, insert: suggestion.insert },
+              })
+            },
+          },
+        ]
+      }
+      return {
+        from: err.sourceRange[0],
+        to: err.sourceRange[1],
+        message: err.message,
+        severity,
+        actions,
       }
-    return sourceRanges
     })
 }

src/lang/executor.test.ts

@@ -1,7 +1,7 @@
 import fs from 'node:fs'
 
 import {
-  parse,
+  assertParse,
   ProgramMemory,
   Sketch,
   initPromise,
@@ -472,7 +472,7 @@ describe('Testing Errors', () => {
 const theExtrude = startSketchOn('XY')
   |> startProfileAt([0, 0], %)
   |> line([-2.4, 5], %)
-  |> line([-0.76], myVarZ, %)
+  |> line(myVarZ, %)
   |> line([5,5], %)
   |> close(%)
   |> extrude(4, %)`
@@ -480,7 +480,7 @@ const theExtrude = startSketchOn('XY')
       new KCLError(
         'undefined_value',
         'memory item key `myVarZ` is not defined',
-        [[129, 135, 0]]
+        [129, 135, true]
       )
     )
   })
@@ -492,7 +492,7 @@ async function exe(
   code: string,
   programMemory: ProgramMemory = ProgramMemory.empty()
 ) {
-  const ast = parse(code)
+  const ast = assertParse(code)
 
   const execState = await enginelessExecutor(ast, programMemory)
   return execState.memory

src/lang/getNodePathFromSourceRange.test.ts

@@ -1,5 +1,5 @@
 import { getNodePathFromSourceRange, getNodeFromPath } from './queryAst'
-import { Identifier, parse, initPromise, Parameter } from './wasm'
+import { Identifier, assertParse, initPromise, Parameter } from './wasm'
 import { err } from 'lib/trap'
 
 beforeAll(async () => {
@@ -17,19 +17,19 @@ const sk3 = startSketchAt([0, 0])
 `
     const subStr = 'lineTo([3, 4], %, $yo)'
     const lineToSubstringIndex = code.indexOf(subStr)
-    const sourceRange: [number, number] = [
+    const sourceRange: [number, number, boolean] = [
       lineToSubstringIndex,
       lineToSubstringIndex + subStr.length,
+      true,
     ]
 
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const nodePath = getNodePathFromSourceRange(ast, sourceRange)
     const _node = getNodeFromPath<any>(ast, nodePath)
     if (err(_node)) throw _node
     const { node } = _node
 
-    expect([node.start, node.end]).toEqual(sourceRange)
+    expect([node.start, node.end, true]).toEqual(sourceRange)
     expect(node.type).toBe('CallExpression')
   })
   it('gets path right for function definition params', () => {
@@ -45,13 +45,13 @@ const sk3 = startSketchAt([0, 0])
 const b1 = cube([0,0], 10)`
     const subStr = 'pos, scale'
     const subStrIndex = code.indexOf(subStr)
-    const sourceRange: [number, number] = [
+    const sourceRange: [number, number, boolean] = [
       subStrIndex,
       subStrIndex + 'pos'.length,
+      true,
     ]
 
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const nodePath = getNodePathFromSourceRange(ast, sourceRange)
     const _node = getNodeFromPath<Parameter>(ast, nodePath)
     if (err(_node)) throw _node
@@ -60,8 +60,7 @@ const b1 = cube([0,0], 10)`
     expect(nodePath).toEqual([
       ['body', ''],
       [0, 'index'],
-      ['declarations', 'VariableDeclaration'],
+      ['declaration', 'VariableDeclaration'],
-      [0, 'index'],
       ['init', ''],
       ['params', 'FunctionExpression'],
       [0, 'index'],
@@ -82,13 +81,13 @@ const b1 = cube([0,0], 10)`
 const b1 = cube([0,0], 10)`
     const subStr = 'scale, 0'
     const subStrIndex = code.indexOf(subStr)
-    const sourceRange: [number, number] = [
+    const sourceRange: [number, number, boolean] = [
       subStrIndex,
       subStrIndex + 'scale'.length,
+      true,
     ]
 
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const nodePath = getNodePathFromSourceRange(ast, sourceRange)
     const _node = getNodeFromPath<Identifier>(ast, nodePath)
     if (err(_node)) throw _node
@@ -96,14 +95,12 @@ const b1 = cube([0,0], 10)`
     expect(nodePath).toEqual([
       ['body', ''],
       [0, 'index'],
-      ['declarations', 'VariableDeclaration'],
+      ['declaration', 'VariableDeclaration'],
-      [0, 'index'],
       ['init', ''],
       ['body', 'FunctionExpression'],
       ['body', 'FunctionExpression'],
       [0, 'index'],
-      ['declarations', 'VariableDeclaration'],
+      ['declaration', 'VariableDeclaration'],
-      [0, 'index'],
       ['init', ''],
       ['body', 'PipeExpression'],
       [2, 'index'],

src/lang/kclSamples.test.ts

@@ -1,6 +1,5 @@
-import { parse, initPromise, programMemoryInit } from './wasm'
+import { assertParse, initPromise, programMemoryInit } from './wasm'
 import { enginelessExecutor } from '../lib/testHelpers'
-import { assert } from 'vitest'
 // These unit tests makes web requests to a public github repository.
 
 interface KclSampleFile {
@@ -58,8 +57,7 @@ describe('Test KCL Samples from public Github repository', () => {
     files.forEach((file: KclSampleFile) => {
       it(`should parse ${file.filename} without errors`, async () => {
         const code = await getKclSampleCodeFromGithub(file.filename)
-        const parsed = parse(code)
+        assertParse(code)
-        assert(!(parsed instanceof Error))
       }, 1000)
     })
   })
@@ -71,9 +69,8 @@ describe('Test KCL Samples from public Github repository', () => {
         for (let i = 0; i < files.length; i++) {
           const file: KclSampleFile = files[i]
           const code = await getKclSampleCodeFromGithub(file.filename)
-          const parsed = parse(code)
+          const ast = assertParse(code)
-          assert(!(parsed instanceof Error))
+          await enginelessExecutor(ast, programMemoryInit())
-          await enginelessExecutor(parsed, programMemoryInit())
         }
       },
       files.length * 1000

src/lang/langHelpers.ts

@@ -2,7 +2,6 @@ import {
   Program,
   _executor,
   ProgramMemory,
-  programMemoryInit,
   kclLint,
   emptyExecState,
   ExecState,
@@ -11,7 +10,6 @@ import { enginelessExecutor } from 'lib/testHelpers'
 import { EngineCommandManager } from 'lang/std/engineConnection'
 import { KCLError } from 'lang/errors'
 import { Diagnostic } from '@codemirror/lint'
-import { IdGenerator } from 'wasm-lib/kcl/bindings/IdGenerator'
 import { Node } from 'wasm-lib/kcl/bindings/Node'
 
 export type ToolTip =
@@ -49,15 +47,13 @@ export const toolTips: Array<ToolTip> = [
 export async function executeAst({
   ast,
   engineCommandManager,
-  useFakeExecutor = false,
+  // If you set programMemoryOverride we assume you mean mock mode. Since that
+  // is the only way to go about it.
   programMemoryOverride,
-  idGenerator,
 }: {
   ast: Node<Program>
   engineCommandManager: EngineCommandManager
-  useFakeExecutor?: boolean
   programMemoryOverride?: ProgramMemory
-  idGenerator?: IdGenerator
   isInterrupted?: boolean
 }): Promise<{
   logs: string[]
@@ -66,22 +62,14 @@ export async function executeAst({
   isInterrupted: boolean
 }> {
   try {
-    if (!useFakeExecutor) {
+    const execState = await (programMemoryOverride
-      engineCommandManager.endSession()
+      ? enginelessExecutor(ast, programMemoryOverride)
-      // eslint-disable-next-line @typescript-eslint/no-floating-promises
+      : _executor(ast, engineCommandManager))
-      engineCommandManager.startNewSession()
+
-    }
+    await engineCommandManager.waitForAllCommands(
-    const execState = await (useFakeExecutor
+      programMemoryOverride !== undefined
-      ? enginelessExecutor(ast, programMemoryOverride || programMemoryInit())
+    )
-      : _executor(
-          ast,
-          programMemoryInit(),
-          idGenerator,
-          engineCommandManager,
-          false
-        ))
 
-    await engineCommandManager.waitForAllCommands(useFakeExecutor)
     return {
       logs: [],
       errors: [],

src/lang/modifyAst.test.ts

@@ -1,4 +1,4 @@
-import { parse, recast, initPromise, Identifier } from './wasm'
+import { assertParse, recast, initPromise, Identifier } from './wasm'
 import {
   createLiteral,
   createIdentifier,
@@ -82,11 +82,11 @@ describe('Testing createVariableDeclaration', () => {
   it('should create a variable declaration', () => {
     const result = createVariableDeclaration('myVar', createLiteral(5))
     expect(result.type).toBe('VariableDeclaration')
-    expect(result.declarations[0].type).toBe('VariableDeclarator')
+    expect(result.declaration.type).toBe('VariableDeclarator')
-    expect(result.declarations[0].id.type).toBe('Identifier')
+    expect(result.declaration.id.type).toBe('Identifier')
-    expect(result.declarations[0].id.name).toBe('myVar')
+    expect(result.declaration.id.name).toBe('myVar')
-    expect(result.declarations[0].init.type).toBe('Literal')
+    expect(result.declaration.init.type).toBe('Literal')
-    expect((result.declarations[0].init as any).value).toBe(5)
+    expect((result.declaration.init as any).value).toBe(5)
   })
 })
 describe('Testing createPipeExpression', () => {
@@ -146,10 +146,13 @@ function giveSketchFnCallTagTestHelper(
   // giveSketchFnCallTag inputs and outputs an ast, which is very verbose for testing
   // this wrapper changes the input and output to code
   // making it more of an integration test, but easier to read the test intention is the goal
-  const ast = parse(code)
+  const ast = assertParse(code)
-  if (err(ast)) throw ast
   const start = code.indexOf(searchStr)
-  const range: [number, number] = [start, start + searchStr.length]
+  const range: [number, number, boolean] = [
+    start,
+    start + searchStr.length,
+    true,
+  ]
   const sketchRes = giveSketchFnCallTag(ast, range)
   if (err(sketchRes)) throw sketchRes
   const { modifiedAst, tag, isTagExisting } = sketchRes
@@ -221,14 +224,13 @@ part001 = startSketchOn('XY')
 |> angledLine([jkl(yo) + 2, 3.09], %)
 yo2 = hmm([identifierGuy + 5])`
   it('should move a binary expression into a new variable', async () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const execState = await enginelessExecutor(ast)
     const startIndex = code.indexOf('100 + 100') + 1
     const { modifiedAst } = moveValueIntoNewVariable(
       ast,
       execState.memory,
-      [startIndex, startIndex],
+      [startIndex, startIndex, true],
       'newVar'
     )
     const newCode = recast(modifiedAst)
@@ -236,14 +238,13 @@ yo2 = hmm([identifierGuy + 5])`
     expect(newCode).toContain(`angledLine([newVar, 3.09], %)`)
   })
   it('should move a value into a new variable', async () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const execState = await enginelessExecutor(ast)
     const startIndex = code.indexOf('2.8') + 1
     const { modifiedAst } = moveValueIntoNewVariable(
       ast,
       execState.memory,
-      [startIndex, startIndex],
+      [startIndex, startIndex, true],
       'newVar'
     )
     const newCode = recast(modifiedAst)
@@ -251,14 +252,13 @@ yo2 = hmm([identifierGuy + 5])`
     expect(newCode).toContain(`line([newVar, 0], %)`)
   })
   it('should move a callExpression into a new variable', async () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const execState = await enginelessExecutor(ast)
     const startIndex = code.indexOf('def(')
     const { modifiedAst } = moveValueIntoNewVariable(
       ast,
       execState.memory,
-      [startIndex, startIndex],
+      [startIndex, startIndex, true],
       'newVar'
     )
     const newCode = recast(modifiedAst)
@@ -266,14 +266,13 @@ yo2 = hmm([identifierGuy + 5])`
     expect(newCode).toContain(`angledLine([newVar, 3.09], %)`)
   })
   it('should move a binary expression with call expression into a new variable', async () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const execState = await enginelessExecutor(ast)
     const startIndex = code.indexOf('jkl(') + 1
     const { modifiedAst } = moveValueIntoNewVariable(
       ast,
       execState.memory,
-      [startIndex, startIndex],
+      [startIndex, startIndex, true],
       'newVar'
     )
     const newCode = recast(modifiedAst)
@@ -281,14 +280,13 @@ yo2 = hmm([identifierGuy + 5])`
     expect(newCode).toContain(`angledLine([newVar, 3.09], %)`)
   })
   it('should move a identifier into a new variable', async () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const execState = await enginelessExecutor(ast)
     const startIndex = code.indexOf('identifierGuy +') + 1
     const { modifiedAst } = moveValueIntoNewVariable(
       ast,
       execState.memory,
-      [startIndex, startIndex],
+      [startIndex, startIndex, true],
       'newVar'
     )
     const newCode = recast(modifiedAst)
@@ -305,19 +303,20 @@ describe('testing sketchOnExtrudedFace', () => {
   |> line([8.62, -9.57], %)
   |> close(%)
   |> extrude(5 + 7, %)`
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
 
     const segmentSnippet = `line([9.7, 9.19], %)`
-    const segmentRange: [number, number] = [
+    const segmentRange: [number, number, boolean] = [
       code.indexOf(segmentSnippet),
       code.indexOf(segmentSnippet) + segmentSnippet.length,
+      true,
     ]
     const segmentPathToNode = getNodePathFromSourceRange(ast, segmentRange)
     const extrudeSnippet = `extrude(5 + 7, %)`
-    const extrudeRange: [number, number] = [
+    const extrudeRange: [number, number, boolean] = [
       code.indexOf(extrudeSnippet),
       code.indexOf(extrudeSnippet) + extrudeSnippet.length,
+      true,
     ]
     const extrudePathToNode = getNodePathFromSourceRange(ast, extrudeRange)
 
@@ -345,18 +344,19 @@ sketch001 = startSketchOn(part001, seg01)`)
   |> line([8.62, -9.57], %)
   |> close(%)
   |> extrude(5 + 7, %)`
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const segmentSnippet = `close(%)`
-    const segmentRange: [number, number] = [
+    const segmentRange: [number, number, boolean] = [
       code.indexOf(segmentSnippet),
       code.indexOf(segmentSnippet) + segmentSnippet.length,
+      true,
     ]
     const segmentPathToNode = getNodePathFromSourceRange(ast, segmentRange)
     const extrudeSnippet = `extrude(5 + 7, %)`
-    const extrudeRange: [number, number] = [
+    const extrudeRange: [number, number, boolean] = [
       code.indexOf(extrudeSnippet),
       code.indexOf(extrudeSnippet) + extrudeSnippet.length,
+      true,
     ]
     const extrudePathToNode = getNodePathFromSourceRange(ast, extrudeRange)
 
@@ -384,18 +384,19 @@ sketch001 = startSketchOn(part001, seg01)`)
   |> line([8.62, -9.57], %)
   |> close(%)
   |> extrude(5 + 7, %)`
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const sketchSnippet = `startProfileAt([3.58, 2.06], %)`
-    const sketchRange: [number, number] = [
+    const sketchRange: [number, number, boolean] = [
       code.indexOf(sketchSnippet),
       code.indexOf(sketchSnippet) + sketchSnippet.length,
+      true,
     ]
     const sketchPathToNode = getNodePathFromSourceRange(ast, sketchRange)
     const extrudeSnippet = `extrude(5 + 7, %)`
-    const extrudeRange: [number, number] = [
+    const extrudeRange: [number, number, boolean] = [
       code.indexOf(extrudeSnippet),
       code.indexOf(extrudeSnippet) + extrudeSnippet.length,
+      true,
     ]
     const extrudePathToNode = getNodePathFromSourceRange(ast, extrudeRange)
 
@@ -432,18 +433,19 @@ sketch001 = startSketchOn(part001, 'END')`)
     |> line([-17.67, 0.85], %)
     |> close(%)
     part001 = extrude(5 + 7, sketch001)`
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const segmentSnippet = `line([4.99, -0.46], %)`
-    const segmentRange: [number, number] = [
+    const segmentRange: [number, number, boolean] = [
       code.indexOf(segmentSnippet),
       code.indexOf(segmentSnippet) + segmentSnippet.length,
+      true,
     ]
     const segmentPathToNode = getNodePathFromSourceRange(ast, segmentRange)
     const extrudeSnippet = `extrude(5 + 7, sketch001)`
-    const extrudeRange: [number, number] = [
+    const extrudeRange: [number, number, boolean] = [
       code.indexOf(extrudeSnippet),
       code.indexOf(extrudeSnippet) + extrudeSnippet.length,
+      true,
     ]
     const extrudePathToNode = getNodePathFromSourceRange(ast, extrudeRange)
 
@@ -466,13 +468,13 @@ describe('Testing deleteSegmentFromPipeExpression', () => {
   |> line([306.21, 198.82], %)
   |> line([306.21, 198.85], %, $a)
   |> line([306.21, 198.87], %)`
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const execState = await enginelessExecutor(ast)
     const lineOfInterest = 'line([306.21, 198.85], %, $a)'
-    const range: [number, number] = [
+    const range: [number, number, boolean] = [
       code.indexOf(lineOfInterest),
       code.indexOf(lineOfInterest) + lineOfInterest.length,
+      true,
     ]
     const pathToNode = getNodePathFromSourceRange(ast, range)
     const modifiedAst = deleteSegmentFromPipeExpression(
@@ -544,13 +546,13 @@ ${!replace1 ? `  |> ${line}\n` : ''}  |> angledLine([-65, ${
       ],
     ])(`%s`, async (_, line, [replace1, replace2]) => {
       const code = makeCode(line)
-      const ast = parse(code)
+      const ast = assertParse(code)
-      if (err(ast)) throw ast
       const execState = await enginelessExecutor(ast)
       const lineOfInterest = line
-      const range: [number, number] = [
+      const range: [number, number, boolean] = [
         code.indexOf(lineOfInterest),
         code.indexOf(lineOfInterest) + lineOfInterest.length,
+        true,
       ]
       const pathToNode = getNodePathFromSourceRange(ast, range)
       const dependentSegments = findUsesOfTagInPipe(ast, pathToNode)
@@ -632,14 +634,14 @@ describe('Testing removeSingleConstraintInfo', () => {
       ],
       ['tangentialArcTo([3.14 + 0, 13.14], %)', 'arrayIndex', 1],
     ] as const)('stdlib fn: %s', async (expectedFinish, key, value) => {
-      const ast = parse(code)
+      const ast = assertParse(code)
-      if (err(ast)) throw ast
 
       const execState = await enginelessExecutor(ast)
       const lineOfInterest = expectedFinish.split('(')[0] + '('
-      const range: [number, number] = [
+      const range: [number, number, boolean] = [
         code.indexOf(lineOfInterest) + 1,
         code.indexOf(lineOfInterest) + lineOfInterest.length,
+        true,
       ]
       const pathToNode = getNodePathFromSourceRange(ast, range)
       let argPosition: SimplifiedArgDetails
@@ -686,14 +688,14 @@ describe('Testing removeSingleConstraintInfo', () => {
       ['angledLineToX([12.14 + 0, 12], %)', 'arrayIndex', 1],
       ['angledLineToY([30, 10.14 + 0], %)', 'arrayIndex', 0],
     ])('stdlib fn: %s', async (expectedFinish, key, value) => {
-      const ast = parse(code)
+      const ast = assertParse(code)
-      if (err(ast)) throw ast
 
       const execState = await enginelessExecutor(ast)
       const lineOfInterest = expectedFinish.split('(')[0] + '('
-      const range: [number, number] = [
+      const range: [number, number, boolean] = [
         code.indexOf(lineOfInterest) + 1,
         code.indexOf(lineOfInterest) + lineOfInterest.length,
+        true,
       ]
       let argPosition: SimplifiedArgDetails
       if (key === 'arrayIndex' && typeof value === 'number') {
@@ -883,14 +885,14 @@ sketch002 = startSketchOn({
     '%s',
     async (name, { codeBefore, codeAfter, lineOfInterest, type }) => {
       // const lineOfInterest = 'line([-2.94, 2.7], %)'
-      const ast = parse(codeBefore)
+      const ast = assertParse(codeBefore)
-      if (err(ast)) throw ast
       const execState = await enginelessExecutor(ast)
 
       // deleteFromSelection
-      const range: [number, number] = [
+      const range: [number, number, boolean] = [
         codeBefore.indexOf(lineOfInterest),
         codeBefore.indexOf(lineOfInterest) + lineOfInterest.length,
+        true,
       ]
       const artifact = { type } as Artifact
       const newAst = await deleteFromSelection(

src/lang/modifyAst.ts

@@ -66,8 +66,7 @@ export function startSketchOnDefault(
   let pathToNode: PathToNode = [
     ['body', ''],
     [sketchIndex, 'index'],
-    ['declarations', 'VariableDeclaration'],
+    ['declaration', 'VariableDeclaration'],
-    ['0', 'index'],
     ['init', 'VariableDeclarator'],
   ]
 
@@ -94,7 +93,7 @@ export function addStartProfileAt(
     return new Error('variableDeclaration.init.type !== PipeExpression')
   }
   const _node = { ...node }
-  const init = variableDeclaration.declarations[0].init
+  const init = variableDeclaration.declaration.init
   const startProfileAt = createCallExpressionStdLib('startProfileAt', [
     createArrayExpression([
       createLiteral(roundOff(at[0])),
@@ -105,7 +104,7 @@ export function addStartProfileAt(
   if (init.type === 'PipeExpression') {
     init.body.splice(1, 0, startProfileAt)
   } else {
-    variableDeclaration.declarations[0].init = createPipeExpression([
+    variableDeclaration.declaration.init = createPipeExpression([
       init,
       startProfileAt,
     ])
@@ -149,8 +148,7 @@ export function addSketchTo(
   let pathToNode: PathToNode = [
     ['body', ''],
     [sketchIndex, 'index'],
-    ['declarations', 'VariableDeclaration'],
+    ['declaration', 'VariableDeclaration'],
-    ['0', 'index'],
     ['init', 'VariableDeclarator'],
   ]
   if (axis !== 'xy') {
@@ -333,8 +331,7 @@ export function extrudeSketch(
   const pathToExtrudeArg: PathToNode = [
     ['body', ''],
     [sketchIndexInBody + 1, 'index'],
-    ['declarations', 'VariableDeclaration'],
+    ['declaration', 'VariableDeclaration'],
-    [0, 'index'],
     ['init', 'VariableDeclarator'],
     ['arguments', 'CallExpression'],
     [0, 'index'],
@@ -346,6 +343,36 @@ export function extrudeSketch(
   }
 }
 
+export function loftSketches(
+  node: Node<Program>,
+  declarators: VariableDeclarator[]
+): {
+  modifiedAst: Node<Program>
+  pathToNode: PathToNode
+} {
+  const modifiedAst = structuredClone(node)
+  const name = findUniqueName(node, KCL_DEFAULT_CONSTANT_PREFIXES.LOFT)
+  const elements = declarators.map((d) => createIdentifier(d.id.name))
+  const loft = createCallExpressionStdLib('loft', [
+    createArrayExpression(elements),
+  ])
+  const declaration = createVariableDeclaration(name, loft)
+  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,
@@ -429,8 +456,7 @@ export function revolveSketch(
   const pathToRevolveArg: PathToNode = [
     ['body', ''],
     [sketchIndexInBody + 1, 'index'],
-    ['declarations', 'VariableDeclaration'],
+    ['declaration', 'VariableDeclaration'],
-    [0, 'index'],
     ['init', 'VariableDeclarator'],
     ['arguments', 'CallExpression'],
     [0, 'index'],
@@ -516,8 +542,7 @@ export function sketchOnExtrudedFace(
   const newpathToNode: PathToNode = [
     ['body', ''],
     [expressionIndex + 1, 'index'],
-    ['declarations', 'VariableDeclaration'],
+    ['declaration', 'VariableDeclaration'],
-    [0, 'index'],
     ['init', 'VariableDeclarator'],
   ]
 
@@ -554,8 +579,7 @@ export function addOffsetPlane({
   const pathToNode: PathToNode = [
     ['body', ''],
     [modifiedAst.body.length - 1, 'index'],
-    ['declarations', 'VariableDeclaration'],
+    ['declaration', 'VariableDeclaration'],
-    ['0', 'index'],
     ['init', 'VariableDeclarator'],
     ['arguments', 'CallExpression'],
     [0, 'index'],
@@ -792,8 +816,7 @@ export function createVariableDeclaration(
     end: 0,
     moduleId: 0,
 
-    declarations: [
+    declaration: {
-      {
       type: 'VariableDeclarator',
       start: 0,
       end: 0,
@@ -802,7 +825,6 @@ export function createVariableDeclaration(
       id: createIdentifier(varName),
       init,
     },
-    ],
     visibility,
     kind,
   }
@@ -1089,7 +1111,7 @@ export async function deleteFromSelection(
     traverse(astClone, {
       enter: (node, path) => {
         if (node.type === 'VariableDeclaration') {
-          const dec = node.declarations[0]
+          const dec = node.declaration
           if (
             dec.init.type === 'CallExpression' &&
             (dec.init.callee.name === 'extrude' ||
@@ -1124,7 +1146,7 @@ export async function deleteFromSelection(
             enter: (node, path) => {
               ;(async () => {
                 if (node.type === 'VariableDeclaration') {
-                  currentVariableName = node.declarations[0].id.name
+                  currentVariableName = node.declaration.id.name
                 }
                 if (
                   // match startSketchOn(${extrudeNameToDelete})

src/lang/modifyAst/addEdgeTreatment.test.ts

@@ -1,5 +1,5 @@
 import {
-  parse,
+  assertParse,
   recast,
   initPromise,
   PathToNode,
@@ -10,18 +10,21 @@ import {
   VariableDeclarator,
 } from '../wasm'
 import {
+  EdgeTreatmentType,
   getPathToExtrudeForSegmentSelection,
-  hasValidFilletSelection,
+  hasValidEdgeTreatmentSelection,
-  isTagUsedInFillet,
+  isTagUsedInEdgeTreatment,
-  modifyAstWithFilletAndTag,
+  modifyAstWithEdgeTreatmentAndTag,
-} from './addFillet'
+  FilletParameters,
+  ChamferParameters,
+  EdgeTreatmentParameters,
+} from './addEdgeTreatment'
 import { getNodeFromPath, getNodePathFromSourceRange } from '../queryAst'
 import { createLiteral } from 'lang/modifyAst'
 import { err } from 'lib/trap'
-import { Selections } from 'lib/selections'
+import { Selection, Selections } from 'lib/selections'
 import { engineCommandManager, kclManager } from 'lib/singletons'
 import { VITE_KC_DEV_TOKEN } from 'env'
-import { KclCommandValue } from 'lib/commandTypes'
 import { isOverlap } from 'lib/utils'
 import { codeRefFromRange } from 'lang/std/artifactGraph'
 
@@ -75,9 +78,10 @@ const runGetPathToExtrudeForSegmentSelectionTest = async (
     code: string,
     expectedExtrudeSnippet: string
   ): CallExpression | PipeExpression | Error {
-    const extrudeRange: [number, number] = [
+    const extrudeRange: [number, number, boolean] = [
       code.indexOf(expectedExtrudeSnippet),
       code.indexOf(expectedExtrudeSnippet) + expectedExtrudeSnippet.length,
+      true,
     ]
     const expectedExtrudePath = getNodePathFromSourceRange(ast, extrudeRange)
     const expectedExtrudeNodeResult = getNodeFromPath<
@@ -106,22 +110,16 @@ const runGetPathToExtrudeForSegmentSelectionTest = async (
   }
 
   // ast
-  const astOrError = parse(code)
+  const ast = assertParse(code)
-  if (err(astOrError)) return new Error('AST not found')
-  const ast = astOrError
 
   // selection
-  const segmentRange: [number, number] = [
+  const segmentRange: [number, number, boolean] = [
     code.indexOf(selectedSegmentSnippet),
     code.indexOf(selectedSegmentSnippet) + selectedSegmentSnippet.length,
+    true,
   ]
-  const selection: Selections = {
+  const selection: Selection = {
-    graphSelections: [
-      {
     codeRef: codeRefFromRange(segmentRange, ast),
-      },
-    ],
-    otherSelections: [],
   }
 
   // executeAst and artifactGraph
@@ -253,34 +251,24 @@ extrude003 = extrude(-15, sketch003)`
   })
 })
 
-const runModifyAstCloneWithFilletAndTag = async (
+const runModifyAstCloneWithEdgeTreatmentAndTag = async (
   code: string,
   selectionSnippets: Array<string>,
-  radiusValue: number,
+  parameters: EdgeTreatmentParameters,
   expectedCode: string
 ) => {
   // ast
-  const astOrError = parse(code)
+  const ast = assertParse(code)
-  if (err(astOrError)) {
-    return new Error('AST not found')
-  }
-  const ast = astOrError
 
   // selection
-  const segmentRanges: Array<[number, number]> = selectionSnippets.map(
+  const segmentRanges: Array<[number, number, boolean]> = selectionSnippets.map(
     (selectionSnippet) => [
       code.indexOf(selectionSnippet),
       code.indexOf(selectionSnippet) + selectionSnippet.length,
+      true,
     ]
   )
 
-  // radius
-  const radius: KclCommandValue = {
-    valueAst: createLiteral(radiusValue),
-    valueText: radiusValue.toString(),
-    valueCalculated: radiusValue.toString(),
-  }
-
   // executeAst
   await kclManager.executeAst({ ast })
   const artifactGraph = engineCommandManager.artifactGraph
@@ -299,8 +287,8 @@ const runModifyAstCloneWithFilletAndTag = async (
     otherSelections: [],
   }
 
-  // apply fillet to selection
+  // apply edge treatment to seleciton
-  const result = modifyAstWithFilletAndTag(ast, selection, radius)
+  const result = modifyAstWithEdgeTreatmentAndTag(ast, selection, parameters)
   if (err(result)) {
     return result
   }
@@ -310,8 +298,41 @@ const runModifyAstCloneWithFilletAndTag = async (
 
   expect(newCode).toContain(expectedCode)
 }
-describe('Testing applyFilletToSelection', () => {
+const createFilletParameters = (radiusValue: number): FilletParameters => ({
-  it('should add a fillet to a specific segment', async () => {
+  type: EdgeTreatmentType.Fillet,
+  radius: {
+    valueAst: createLiteral(radiusValue),
+    valueText: radiusValue.toString(),
+    valueCalculated: radiusValue.toString(),
+  },
+})
+const createChamferParameters = (lengthValue: number): ChamferParameters => ({
+  type: EdgeTreatmentType.Chamfer,
+  length: {
+    valueAst: createLiteral(lengthValue),
+    valueText: lengthValue.toString(),
+    valueCalculated: lengthValue.toString(),
+  },
+})
+// Iterate tests over all edge treatment types
+Object.values(EdgeTreatmentType).forEach(
+  (edgeTreatmentType: EdgeTreatmentType) => {
+    // create parameters based on the edge treatment type
+    let parameterName: string
+    let parameters: EdgeTreatmentParameters
+    if (edgeTreatmentType === EdgeTreatmentType.Fillet) {
+      parameterName = 'radius'
+      parameters = createFilletParameters(3)
+    } else if (edgeTreatmentType === EdgeTreatmentType.Chamfer) {
+      parameterName = 'length'
+      parameters = createChamferParameters(3)
+    } else {
+      // Handle future edge treatments
+      return new Error(`Unsupported edge treatment type: ${edgeTreatmentType}`)
+    }
+    // run tests
+    describe(`Testing modifyAstCloneWithEdgeTreatmentAndTag with ${edgeTreatmentType}s`, () => {
+      it(`should add a ${edgeTreatmentType} to a specific segment`, async () => {
         const code = `sketch001 = startSketchOn('XY')
   |> startProfileAt([-10, 10], %)
   |> line([20, 0], %)
@@ -321,7 +342,6 @@ describe('Testing applyFilletToSelection', () => {
   |> close(%)
 extrude001 = extrude(-15, sketch001)`
         const segmentSnippets = ['line([0, -20], %)']
-    const radiusValue = 3
         const expectedCode = `sketch001 = startSketchOn('XY')
   |> startProfileAt([-10, 10], %)
   |> line([20, 0], %)
@@ -330,16 +350,16 @@ extrude001 = extrude(-15, sketch001)`
   |> lineTo([profileStartX(%), profileStartY(%)], %)
   |> close(%)
 extrude001 = extrude(-15, sketch001)
-  |> fillet({ radius = 3, tags = [seg01] }, %)`
+  |> ${edgeTreatmentType}({ ${parameterName} = 3, tags = [seg01] }, %)`
 
-    await runModifyAstCloneWithFilletAndTag(
+        await runModifyAstCloneWithEdgeTreatmentAndTag(
           code,
           segmentSnippets,
-      radiusValue,
+          parameters,
           expectedCode
         )
       })
-  it('should add a fillet to the sketch pipe', async () => {
+      it(`should add a ${edgeTreatmentType} to the sketch pipe`, async () => {
         const code = `sketch001 = startSketchOn('XY')
   |> startProfileAt([-10, 10], %)
   |> line([20, 0], %)
@@ -349,7 +369,6 @@ extrude001 = extrude(-15, sketch001)
   |> close(%)
   |> extrude(-15, %)`
         const segmentSnippets = ['line([0, -20], %)']
-    const radiusValue = 3
         const expectedCode = `sketch001 = startSketchOn('XY')
   |> startProfileAt([-10, 10], %)
   |> line([20, 0], %)
@@ -358,16 +377,16 @@ extrude001 = extrude(-15, sketch001)
   |> lineTo([profileStartX(%), profileStartY(%)], %)
   |> close(%)
   |> extrude(-15, %)
-  |> fillet({ radius = 3, tags = [seg01] }, %)`
+  |> ${edgeTreatmentType}({ ${parameterName} = 3, tags = [seg01] }, %)`
 
-    await runModifyAstCloneWithFilletAndTag(
+        await runModifyAstCloneWithEdgeTreatmentAndTag(
           code,
           segmentSnippets,
-      radiusValue,
+          parameters,
           expectedCode
         )
       })
-  it('should add a fillet to an already tagged segment', async () => {
+      it(`should add a ${edgeTreatmentType} to an already tagged segment`, async () => {
         const code = `sketch001 = startSketchOn('XY')
   |> startProfileAt([-10, 10], %)
   |> line([20, 0], %)
@@ -377,7 +396,6 @@ extrude001 = extrude(-15, sketch001)
   |> close(%)
 extrude001 = extrude(-15, sketch001)`
         const segmentSnippets = ['line([0, -20], %, $seg01)']
-    const radiusValue = 3
         const expectedCode = `sketch001 = startSketchOn('XY')
   |> startProfileAt([-10, 10], %)
   |> line([20, 0], %)
@@ -386,16 +404,16 @@ extrude001 = extrude(-15, sketch001)`
   |> lineTo([profileStartX(%), profileStartY(%)], %)
   |> close(%)
 extrude001 = extrude(-15, sketch001)
-  |> fillet({ radius = 3, tags = [seg01] }, %)`
+  |> ${edgeTreatmentType}({ ${parameterName} = 3, tags = [seg01] }, %)`
 
-    await runModifyAstCloneWithFilletAndTag(
+        await runModifyAstCloneWithEdgeTreatmentAndTag(
           code,
           segmentSnippets,
-      radiusValue,
+          parameters,
           expectedCode
         )
       })
-  it('should add a fillet with existing tag on other segment', async () => {
+      it(`should add a ${edgeTreatmentType} with existing tag on other segment`, async () => {
         const code = `sketch001 = startSketchOn('XY')
   |> startProfileAt([-10, 10], %)
   |> line([20, 0], %, $seg01)
@@ -405,7 +423,6 @@ extrude001 = extrude(-15, sketch001)
   |> close(%)
 extrude001 = extrude(-15, sketch001)`
         const segmentSnippets = ['line([-20, 0], %)']
-    const radiusValue = 3
         const expectedCode = `sketch001 = startSketchOn('XY')
   |> startProfileAt([-10, 10], %)
   |> line([20, 0], %, $seg01)
@@ -414,16 +431,16 @@ extrude001 = extrude(-15, sketch001)`
   |> lineTo([profileStartX(%), profileStartY(%)], %)
   |> close(%)
 extrude001 = extrude(-15, sketch001)
-  |> fillet({ radius = 3, tags = [seg02] }, %)`
+  |> ${edgeTreatmentType}({ ${parameterName} = 3, tags = [seg02] }, %)`
 
-    await runModifyAstCloneWithFilletAndTag(
+        await runModifyAstCloneWithEdgeTreatmentAndTag(
           code,
           segmentSnippets,
-      radiusValue,
+          parameters,
           expectedCode
         )
       })
-  it('should add a fillet with existing fillet on other segment', async () => {
+      it(`should add a ${edgeTreatmentType} with existing fillet on other segment`, async () => {
         const code = `sketch001 = startSketchOn('XY')
   |> startProfileAt([-10, 10], %)
   |> line([20, 0], %, $seg01)
@@ -434,7 +451,6 @@ extrude001 = extrude(-15, sketch001)
 extrude001 = extrude(-15, sketch001)
   |> fillet({ radius = 5, tags = [seg01] }, %)`
         const segmentSnippets = ['line([-20, 0], %)']
-    const radiusValue = 3
         const expectedCode = `sketch001 = startSketchOn('XY')
   |> startProfileAt([-10, 10], %)
   |> line([20, 0], %, $seg01)
@@ -444,16 +460,45 @@ extrude001 = extrude(-15, sketch001)
   |> close(%)
 extrude001 = extrude(-15, sketch001)
   |> fillet({ radius = 5, tags = [seg01] }, %)
-  |> fillet({ radius = 3, tags = [seg02] }, %)`
+  |> ${edgeTreatmentType}({ ${parameterName} = 3, tags = [seg02] }, %)`
 
-    await runModifyAstCloneWithFilletAndTag(
+        await runModifyAstCloneWithEdgeTreatmentAndTag(
           code,
           segmentSnippets,
-      radiusValue,
+          parameters,
           expectedCode
         )
       })
-  it('should add a fillet to two segments of a single extrusion', async () => {
+      it(`should add a ${edgeTreatmentType} with existing chamfer on other segment`, async () => {
+        const code = `sketch001 = startSketchOn('XY')
+  |> startProfileAt([-10, 10], %)
+  |> line([20, 0], %, $seg01)
+  |> line([0, -20], %)
+  |> line([-20, 0], %)
+  |> lineTo([profileStartX(%), profileStartY(%)], %)
+  |> close(%)
+extrude001 = extrude(-15, sketch001)
+  |> chamfer({ length: 5, tags: [seg01] }, %)`
+        const segmentSnippets = ['line([-20, 0], %)']
+        const expectedCode = `sketch001 = startSketchOn('XY')
+  |> startProfileAt([-10, 10], %)
+  |> line([20, 0], %, $seg01)
+  |> line([0, -20], %)
+  |> line([-20, 0], %, $seg02)
+  |> lineTo([profileStartX(%), profileStartY(%)], %)
+  |> close(%)
+extrude001 = extrude(-15, sketch001)
+  |> chamfer({ length: 5, tags: [seg01] }, %)
+  |> ${edgeTreatmentType}({ ${parameterName}: 3, tags: [seg02] }, %)`
+
+        await runModifyAstCloneWithEdgeTreatmentAndTag(
+          code,
+          segmentSnippets,
+          parameters,
+          expectedCode
+        )
+      })
+      it(`should add a ${edgeTreatmentType} to two segments of a single extrusion`, async () => {
         const code = `sketch001 = startSketchOn('XY')
   |> startProfileAt([-10, 10], %)
   |> line([20, 0], %)
@@ -463,7 +508,6 @@ extrude001 = extrude(-15, sketch001)
   |> close(%)
 extrude001 = extrude(-15, sketch001)`
         const segmentSnippets = ['line([20, 0], %)', 'line([-20, 0], %)']
-    const radiusValue = 3
         const expectedCode = `sketch001 = startSketchOn('XY')
   |> startProfileAt([-10, 10], %)
   |> line([20, 0], %, $seg01)
@@ -472,16 +516,16 @@ extrude001 = extrude(-15, sketch001)`
   |> lineTo([profileStartX(%), profileStartY(%)], %)
   |> close(%)
 extrude001 = extrude(-15, sketch001)
-  |> fillet({ radius = 3, tags = [seg01, seg02] }, %)`
+  |> ${edgeTreatmentType}({ ${parameterName} = 3, tags = [seg01, seg02] }, %)`
 
-    await runModifyAstCloneWithFilletAndTag(
+        await runModifyAstCloneWithEdgeTreatmentAndTag(
           code,
           segmentSnippets,
-      radiusValue,
+          parameters,
           expectedCode
         )
       })
-  it('should add fillets to two bodies', async () => {
+      it(`should add ${edgeTreatmentType}s to two bodies`, async () => {
         const code = `sketch001 = startSketchOn('XY')
   |> startProfileAt([-10, 10], %)
   |> line([20, 0], %)
@@ -503,7 +547,6 @@ extrude002 = extrude(-25, sketch002)` // <--- body 2
           'line([-20, 0], %)',
           'line([0, -15], %)',
         ]
-    const radiusValue = 3
         const expectedCode = `sketch001 = startSketchOn('XY')
   |> startProfileAt([-10, 10], %)
   |> line([20, 0], %, $seg01)
@@ -512,7 +555,7 @@ extrude002 = extrude(-25, sketch002)` // <--- body 2
   |> lineTo([profileStartX(%), profileStartY(%)], %)
   |> close(%)
 extrude001 = extrude(-15, sketch001)
-  |> fillet({ radius = 3, tags = [seg01, seg02] }, %)
+  |> ${edgeTreatmentType}({ ${parameterName} = 3, tags = [seg01, seg02] }, %)
 sketch002 = startSketchOn('XY')
   |> startProfileAt([30, 10], %)
   |> line([15, 0], %)
@@ -521,18 +564,20 @@ sketch002 = startSketchOn('XY')
   |> lineTo([profileStartX(%), profileStartY(%)], %)
   |> close(%)
 extrude002 = extrude(-25, sketch002)
-  |> fillet({ radius = 3, tags = [seg03] }, %)` // <-- able to add a new one
+  |> ${edgeTreatmentType}({ ${parameterName} = 3, tags = [seg03] }, %)` // <-- able to add a new one
 
-    await runModifyAstCloneWithFilletAndTag(
+        await runModifyAstCloneWithEdgeTreatmentAndTag(
           code,
           segmentSnippets,
-      radiusValue,
+          parameters,
           expectedCode
         )
       })
-})
+    })
+  }
+)
 
-describe('Testing isTagUsedInFillet', () => {
+describe('Testing isTagUsedInEdgeTreatment', () => {
   const code = `sketch001 = startSketchOn('XZ')
   |> startProfileAt([7.72, 4.13], %)
   |> line([7.11, 3.48], %, $seg01)
@@ -550,12 +595,12 @@ extrude001 = extrude(-5, sketch001)
      }, %)
 `
   it('should correctly identify getOppositeEdge and baseEdge edges', () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) return
     const lineOfInterest = `line([7.11, 3.48], %, $seg01)`
-    const range: [number, number] = [
+    const range: [number, number, boolean] = [
       code.indexOf(lineOfInterest),
       code.indexOf(lineOfInterest) + lineOfInterest.length,
+      true,
     ]
     const pathToNode = getNodePathFromSourceRange(ast, range)
     if (err(pathToNode)) return
@@ -565,16 +610,16 @@ extrude001 = extrude(-5, sketch001)
       'CallExpression'
     )
     if (err(callExp)) return
-    const edges = isTagUsedInFillet({ ast, callExp: callExp.node })
+    const edges = isTagUsedInEdgeTreatment({ ast, callExp: callExp.node })
     expect(edges).toEqual(['getOppositeEdge', 'baseEdge'])
   })
   it('should correctly identify getPreviousAdjacentEdge edges', () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) return
     const lineOfInterest = `line([-6.37, 3.88], %, $seg02)`
-    const range: [number, number] = [
+    const range: [number, number, boolean] = [
       code.indexOf(lineOfInterest),
       code.indexOf(lineOfInterest) + lineOfInterest.length,
+      true,
     ]
     const pathToNode = getNodePathFromSourceRange(ast, range)
     if (err(pathToNode)) return
@@ -584,16 +629,16 @@ extrude001 = extrude(-5, sketch001)
       'CallExpression'
     )
     if (err(callExp)) return
-    const edges = isTagUsedInFillet({ ast, callExp: callExp.node })
+    const edges = isTagUsedInEdgeTreatment({ ast, callExp: callExp.node })
     expect(edges).toEqual(['getPreviousAdjacentEdge'])
   })
   it('should correctly identify no edges', () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) return
     const lineOfInterest = `line([-3.29, -13.85], %)`
-    const range: [number, number] = [
+    const range: [number, number, boolean] = [
       code.indexOf(lineOfInterest),
       code.indexOf(lineOfInterest) + lineOfInterest.length,
+      true,
     ]
     const pathToNode = getNodePathFromSourceRange(ast, range)
     if (err(pathToNode)) return
@@ -603,7 +648,7 @@ extrude001 = extrude(-5, sketch001)
       'CallExpression'
     )
     if (err(callExp)) return
-    const edges = isTagUsedInFillet({ ast, callExp: callExp.node })
+    const edges = isTagUsedInEdgeTreatment({ ast, callExp: callExp.node })
     expect(edges).toEqual([])
   })
 })
@@ -614,19 +659,15 @@ describe('Testing button states', () => {
     segmentSnippet: string,
     expectedState: boolean
   ) => {
-    // ast
+    const ast = assertParse(code)
-    const astOrError = parse(code)
-    if (err(astOrError)) {
-      return new Error('AST not found')
-    }
-    const ast = astOrError
 
-    const range: [number, number] = segmentSnippet
+    const range: [number, number, boolean] = segmentSnippet
       ? [
           code.indexOf(segmentSnippet),
           code.indexOf(segmentSnippet) + segmentSnippet.length,
+          true,
         ]
-      : [ast.end, ast.end] // empty line in the end of the code
+      : [ast.end, ast.end, true] // empty line in the end of the code
 
     const selectionRanges: Selections = {
       graphSelections: [
@@ -638,7 +679,7 @@ describe('Testing button states', () => {
     }
 
     // state
-    const buttonState = hasValidFilletSelection({
+    const buttonState = hasValidEdgeTreatmentSelection({
       ast,
       selectionRanges,
       code,

src/lang/modifyAst/addEdgeTreatment.ts

@@ -29,7 +29,7 @@ import {
   sketchLineHelperMap,
 } from '../std/sketch'
 import { err, trap } from 'lib/trap'
-import { Selections } from 'lib/selections'
+import { Selection, Selections } from 'lib/selections'
 import { KclCommandValue } from 'lib/commandTypes'
 import {
   Artifact,
@@ -44,32 +44,49 @@ import {
 } from 'lib/singletons'
 import { Node } from 'wasm-lib/kcl/bindings/Node'
 
-// Apply Fillet To Selection
+// Edge Treatment Types
+export enum EdgeTreatmentType {
+  Chamfer = 'chamfer',
+  Fillet = 'fillet',
+}
 
-export function applyFilletToSelection(
+export interface ChamferParameters {
+  type: EdgeTreatmentType.Chamfer
+  length: KclCommandValue
+}
+export interface FilletParameters {
+  type: EdgeTreatmentType.Fillet
+  radius: KclCommandValue
+}
+export type EdgeTreatmentParameters = ChamferParameters | FilletParameters
+
+// Apply Edge Treatment (Fillet or Chamfer) To Selection
+export function applyEdgeTreatmentToSelection(
   ast: Node<Program>,
   selection: Selections,
-  radius: KclCommandValue
+  parameters: EdgeTreatmentParameters
 ): void | Error {
-  // 1. clone and modify with fillet and tag
+  // 1. clone and modify with edge treatment and tag
-  const result = modifyAstWithFilletAndTag(ast, selection, radius)
+  const result = modifyAstWithEdgeTreatmentAndTag(ast, selection, parameters)
   if (err(result)) return result
-  const { modifiedAst, pathToFilletNode } = result
+  const { modifiedAst, pathToEdgeTreatmentNode } = result
 
   // 2. update ast
   // eslint-disable-next-line @typescript-eslint/no-floating-promises
-  updateAstAndFocus(modifiedAst, pathToFilletNode)
+  updateAstAndFocus(modifiedAst, pathToEdgeTreatmentNode)
 }
 
-export function modifyAstWithFilletAndTag(
+export function modifyAstWithEdgeTreatmentAndTag(
   ast: Node<Program>,
   selections: Selections,
-  radius: KclCommandValue
+  parameters: EdgeTreatmentParameters
-): { modifiedAst: Node<Program>; pathToFilletNode: Array<PathToNode> } | Error {
+):
+  | { modifiedAst: Node<Program>; pathToEdgeTreatmentNode: Array<PathToNode> }
+  | Error {
   let clonedAst = structuredClone(ast)
   const clonedAstForGetExtrude = structuredClone(ast)
 
-  const astResult = insertRadiusIntoAst(clonedAst, radius)
+  const astResult = insertParametersIntoAst(clonedAst, parameters)
   if (err(astResult)) return astResult
 
   const artifactGraph = engineCommandManager.artifactGraph
@@ -82,14 +99,9 @@ export function modifyAstWithFilletAndTag(
   const lookupMap: Map<string, PathToNode> = new Map() // work around for Map key comparison
 
   for (const selection of selections.graphSelections) {
-    const singleSelection = {
-      graphSelections: [selection],
-      otherSelections: [],
-    }
-
     const result = getPathToExtrudeForSegmentSelection(
       clonedAstForGetExtrude,
-      singleSelection,
+      selection,
       artifactGraph
     )
     if (err(result)) return result
@@ -119,21 +131,26 @@ export function modifyAstWithFilletAndTag(
     }
   }
 
-  // Step 2: Apply fillet(s) for each extrude node (body)
+  // Step 2: Apply edge treatments for each extrude node (body)
-  let pathToFilletNodes: Array<PathToNode> = []
+  let pathToEdgeTreatmentNodes: Array<PathToNode> = []
   for (const [pathToExtrudeNode, tagInfos] of extrudeToTagsMap.entries()) {
-    // Create a fillet expression with multiple tags
+    // Create an edge treatment expression with multiple tags
-    const radiusValue =
-      'variableName' in radius ? radius.variableIdentifierAst : radius.valueAst
 
+    // edge treatment parameter
+    const parameterResult = getParameterNameAndValue(parameters)
+    if (err(parameterResult)) return parameterResult
+    const { parameterName, parameterValue } = parameterResult
+
+    // tag calls
     const tagCalls = tagInfos.map(({ tag, artifact }) => {
       return getEdgeTagCall(tag, artifact)
     })
     const firstTag = tagCalls[0] // can be Identifier or CallExpression (for opposite and adjacent edges)
 
-    const filletCall = createCallExpressionStdLib('fillet', [
+    // edge treatment call
+    const edgeTreatmentCall = createCallExpressionStdLib(parameters.type, [
       createObjectExpression({
-        radius: radiusValue,
+        [parameterName]: parameterValue,
         tags: createArrayExpression(tagCalls),
       }),
       createPipeSubstitution(),
@@ -147,64 +164,89 @@ export function modifyAstWithFilletAndTag(
     if (err(locatedExtrudeDeclarator)) return locatedExtrudeDeclarator
     const { extrudeDeclarator } = locatedExtrudeDeclarator
 
-    // Modify the extrude expression to include this fillet expression
+    // Modify the extrude expression to include this edge treatment expression
-    // CallExpression - no fillet
+    // CallExpression - no edge treatment
-    // PipeExpression - fillet exists or extrude in sketch pipe
+    // PipeExpression - edge treatment exists or body in sketch pipe
 
-    let pathToFilletNode: PathToNode = []
+    let pathToEdgeTreatmentNode: PathToNode
 
     if (extrudeDeclarator.init.type === 'CallExpression') {
-      // 1. case when no fillet exists
+      // 1. case when no edge treatment exists
 
-      // modify ast with new fillet call by mutating the extrude node
+      // modify ast with new edge treatment call by mutating the extrude node
       extrudeDeclarator.init = createPipeExpression([
         extrudeDeclarator.init,
-        filletCall,
+        edgeTreatmentCall,
       ])
 
-      // get path to the fillet node
+      // get path to the edge treatment node
-      pathToFilletNode = getPathToNodeOfFilletLiteral(
+      pathToEdgeTreatmentNode = getPathToNodeOfEdgeTreatmentLiteral(
         pathToExtrudeNode,
         extrudeDeclarator,
-        firstTag
+        firstTag,
+        parameters
       )
-      pathToFilletNodes.push(pathToFilletNode)
+      pathToEdgeTreatmentNodes.push(pathToEdgeTreatmentNode)
     } else if (extrudeDeclarator.init.type === 'PipeExpression') {
-      // 2. case when fillet exists or extrude in sketch pipe
+      // 2. case when edge treatment exists or extrude in sketch pipe
 
-      // mutate the extrude node with the new fillet call
+      // mutate the extrude node with the new edge treatment call
-      extrudeDeclarator.init.body.push(filletCall)
+      extrudeDeclarator.init.body.push(edgeTreatmentCall)
 
-      // get path to the fillet node
+      // get path to the edge treatment node
-      pathToFilletNode = getPathToNodeOfFilletLiteral(
+      pathToEdgeTreatmentNode = getPathToNodeOfEdgeTreatmentLiteral(
         pathToExtrudeNode,
         extrudeDeclarator,
-        firstTag
+        firstTag,
+        parameters
       )
-      pathToFilletNodes.push(pathToFilletNode)
+      pathToEdgeTreatmentNodes.push(pathToEdgeTreatmentNode)
     } else {
       return new Error('Unsupported extrude type.')
     }
   }
-  return { modifiedAst: clonedAst, pathToFilletNode: pathToFilletNodes }
+  return {
+    modifiedAst: clonedAst,
+    pathToEdgeTreatmentNode: pathToEdgeTreatmentNodes,
+  }
 }
 
-function insertRadiusIntoAst(
+function insertParametersIntoAst(
   ast: Program,
-  radius: KclCommandValue
+  parameters: EdgeTreatmentParameters
 ): { ast: Program } | Error {
   try {
-    // Validate and update AST
-    if (
-      'variableName' in radius &&
-      radius.variableName &&
-      radius.insertIndex !== undefined
-    ) {
     const newAst = structuredClone(ast)
-      newAst.body.splice(radius.insertIndex, 0, radius.variableDeclarationAst)
+
-      return { ast: newAst }
+    // handle radius parameter
+    if (
+      parameters.type === EdgeTreatmentType.Fillet &&
+      'variableName' in parameters.radius &&
+      parameters.radius.variableName &&
+      parameters.radius.insertIndex !== undefined
+    ) {
+      newAst.body.splice(
+        parameters.radius.insertIndex,
+        0,
+        parameters.radius.variableDeclarationAst
+      )
     }
-    return { ast }
+    // handle length parameter
+    if (
+      parameters.type === EdgeTreatmentType.Chamfer &&
+      'variableName' in parameters.length &&
+      parameters.length.variableName &&
+      parameters.length.insertIndex !== undefined
+    ) {
+      newAst.body.splice(
+        parameters.length.insertIndex,
+        0,
+        parameters.length.variableDeclarationAst
+      )
+    }
+
+    // handle upcoming parameters here (for blend, bevel, etc.)
+    return { ast: newAst }
   } catch (error) {
     return new Error(`Failed to handle AST: ${(error as Error).message}`)
   }
@@ -212,12 +254,12 @@ function insertRadiusIntoAst(
 
 export function getPathToExtrudeForSegmentSelection(
   ast: Program,
-  selection: Selections,
+  selection: Selection,
   artifactGraph: ArtifactGraph
 ): { pathToSegmentNode: PathToNode; pathToExtrudeNode: PathToNode } | Error {
   const pathToSegmentNode = getNodePathFromSourceRange(
     ast,
-    selection.graphSelections[0]?.codeRef?.range
+    selection.codeRef?.range
   )
 
   const varDecNode = getNodeFromPath<VariableDeclaration>(
@@ -226,7 +268,7 @@ export function getPathToExtrudeForSegmentSelection(
     'VariableDeclaration'
   )
   if (err(varDecNode)) return varDecNode
-  const sketchVar = varDecNode.node.declarations[0].id.name
+  const sketchVar = varDecNode.node.declaration.id.name
 
   const sketch = sketchFromKclValue(
     kclManager.programMemory.get(sketchVar),
@@ -248,10 +290,10 @@ export function getPathToExtrudeForSegmentSelection(
 
 async function updateAstAndFocus(
   modifiedAst: Node<Program>,
-  pathToFilletNode: Array<PathToNode>
+  pathToEdgeTreatmentNode: Array<PathToNode>
 ) {
   const updatedAst = await kclManager.updateAst(modifiedAst, true, {
-    focusPath: pathToFilletNode,
+    focusPath: pathToEdgeTreatmentNode,
   })
 
   await codeManager.updateEditorWithAstAndWriteToFile(updatedAst.newAst)
@@ -261,7 +303,7 @@ async function updateAstAndFocus(
   }
 }
 
-function mutateAstWithTagForSketchSegment(
+export function mutateAstWithTagForSketchSegment(
   astClone: Node<Program>,
   pathToSegmentNode: PathToNode
 ): { modifiedAst: Program; tag: string } | Error {
@@ -320,7 +362,7 @@ function locateExtrudeDeclarator(
   if (err(nodeOfExtrudeCall)) return nodeOfExtrudeCall
 
   const { node: extrudeVarDecl } = nodeOfExtrudeCall
-  const extrudeDeclarator = extrudeVarDecl.declarations[0]
+  const extrudeDeclarator = extrudeVarDecl.declaration
   if (!extrudeDeclarator) {
     return new Error('Extrude Declarator not found.')
   }
@@ -340,27 +382,38 @@ function locateExtrudeDeclarator(
   return { extrudeDeclarator }
 }
 
-function getPathToNodeOfFilletLiteral(
+function getPathToNodeOfEdgeTreatmentLiteral(
   pathToExtrudeNode: PathToNode,
   extrudeDeclarator: VariableDeclarator,
-  tag: Identifier | CallExpression
+  tag: Identifier | CallExpression,
+  parameters: EdgeTreatmentParameters
 ): PathToNode {
-  let pathToFilletObj: PathToNode = []
+  let pathToEdgeTreatmentObj: PathToNode = []
-  let inFillet = false
+  let inEdgeTreatment = false
 
   traverse(extrudeDeclarator.init, {
     enter(node, path) {
-      if (node.type === 'CallExpression' && node.callee.name === 'fillet') {
+      if (
-        inFillet = true
+        node.type === 'CallExpression' &&
+        node.callee.name === parameters.type
+      ) {
+        inEdgeTreatment = true
       }
-      if (inFillet && node.type === 'ObjectExpression') {
+      if (inEdgeTreatment && node.type === 'ObjectExpression') {
         if (!hasTag(node, tag)) return false
-        pathToFilletObj = getPathToRadiusLiteral(node, path)
+        pathToEdgeTreatmentObj = getPathToEdgeTreatmentParameterLiteral(
+          node,
+          path,
+          parameters
+        )
       }
     },
     leave(node) {
-      if (node.type === 'CallExpression' && node.callee.name === 'fillet') {
+      if (
-        inFillet = false
+        node.type === 'CallExpression' &&
+        node.callee.name === parameters.type
+      ) {
+        inEdgeTreatment = false
       }
     },
   })
@@ -375,7 +428,7 @@ function getPathToNodeOfFilletLiteral(
 
   return [
     ...pathToExtrudeNode.slice(0, indexOfPipeExpression),
-    ...pathToFilletObj,
+    ...pathToEdgeTreatmentObj,
   ]
 }
 
@@ -408,23 +461,62 @@ function hasTag(
   })
 }
 
-function getPathToRadiusLiteral(node: ObjectExpression, path: any): PathToNode {
+function getPathToEdgeTreatmentParameterLiteral(
-  let pathToFilletObj = path
+  node: ObjectExpression,
+  path: any,
+  parameters: EdgeTreatmentParameters
+): PathToNode {
+  let pathToEdgeTreatmentObj = path
+  const parameterResult = getParameterNameAndValue(parameters)
+  if (err(parameterResult)) return pathToEdgeTreatmentObj
+  const { parameterName } = parameterResult
+
   node.properties.forEach((prop, index) => {
-    if (prop.key.name === 'radius') {
+    if (prop.key.name === parameterName) {
-      pathToFilletObj.push(
+      pathToEdgeTreatmentObj.push(
         ['properties', 'ObjectExpression'],
         [index, 'index'],
         ['value', 'Property']
       )
     }
   })
-  return pathToFilletObj
+  return pathToEdgeTreatmentObj
+}
+
+function getParameterNameAndValue(
+  parameters: EdgeTreatmentParameters
+): { parameterName: string; parameterValue: Expr } | Error {
+  if (parameters.type === EdgeTreatmentType.Fillet) {
+    const parameterValue =
+      'variableName' in parameters.radius
+        ? parameters.radius.variableIdentifierAst
+        : parameters.radius.valueAst
+    return { parameterName: 'radius', parameterValue }
+  } else if (parameters.type === EdgeTreatmentType.Chamfer) {
+    const parameterValue =
+      'variableName' in parameters.length
+        ? parameters.length.variableIdentifierAst
+        : parameters.length.valueAst
+    return { parameterName: 'length', parameterValue }
+  } else {
+    return new Error('Unsupported edge treatment type}')
+  }
+}
+
+// Type Guards
+function isEdgeTreatmentType(name: string): name is EdgeTreatmentType {
+  return name === EdgeTreatmentType.Chamfer || name === EdgeTreatmentType.Fillet
+}
+function isEdgeType(name: string): name is EdgeTypes {
+  return (
+    name === 'getNextAdjacentEdge' ||
+    name === 'getPreviousAdjacentEdge' ||
+    name === 'getOppositeEdge'
+  )
 }
 
 // Button states
-
+export const hasValidEdgeTreatmentSelection = ({
-export const hasValidFilletSelection = ({
   selectionRanges,
   ast,
   code,
@@ -433,11 +525,14 @@ export const hasValidFilletSelection = ({
   ast: Node<Program>
   code: string
 }) => {
-  // check if there is anything filletable in the scene
+  // check if there is anything valid for the edge treatment in the scene
   let extrudeExists = false
   traverse(ast, {
     enter(node) {
-      if (node.type === 'CallExpression' && node.callee.name === 'extrude') {
+      if (
+        node.type === 'CallExpression' &&
+        (node.callee.name === 'extrude' || node.callee.name === 'revolve')
+      ) {
         extrudeExists = true
       }
     },
@@ -494,32 +589,39 @@ export const hasValidFilletSelection = ({
       },
     })
 
-    // check if tag is used in fillet
+    // check if tag is used in edge treatment
     if (tagExists && selection.artifact) {
       // create tag call
       let tagCall: Expr = getEdgeTagCall(tag, selection.artifact)
 
-      // check if tag is used in fillet
+      // check if tag is used in edge treatment
-      let inFillet = false
+      let inEdgeTreatment = false
-      let tagUsedInFillet = false
+      let tagUsedInEdgeTreatment = false
+
       traverse(ast, {
         enter(node) {
-          if (node.type === 'CallExpression' && node.callee.name === 'fillet') {
+          if (
-            inFillet = true
+            node.type === 'CallExpression' &&
+            isEdgeTreatmentType(node.callee.name)
+          ) {
+            inEdgeTreatment = true
           }
-          if (inFillet && node.type === 'ObjectExpression') {
+          if (inEdgeTreatment && node.type === 'ObjectExpression') {
             if (hasTag(node, tagCall)) {
-              tagUsedInFillet = true
+              tagUsedInEdgeTreatment = true
             }
           }
         },
         leave(node) {
-          if (node.type === 'CallExpression' && node.callee.name === 'fillet') {
+          if (
-            inFillet = false
+            node.type === 'CallExpression' &&
+            isEdgeTreatmentType(node.callee.name)
+          ) {
+            inEdgeTreatment = false
           }
         },
       })
-      if (tagUsedInFillet) {
+      if (tagUsedInEdgeTreatment) {
         return false
       }
     }
@@ -533,7 +635,7 @@ type EdgeTypes =
   | 'getPreviousAdjacentEdge'
   | 'getOppositeEdge'
 
-export const isTagUsedInFillet = ({
+export const isTagUsedInEdgeTreatment = ({
   ast,
   callExp,
 }: {
@@ -543,16 +645,21 @@ export const isTagUsedInFillet = ({
   const tag = getTagFromCallExpression(callExp)
   if (err(tag)) return []
 
-  let inFillet = false
+  let inEdgeTreatment = false
   let inObj = false
   let inTagHelper: EdgeTypes | '' = ''
   const edges: Array<EdgeTypes> = []
+
   traverse(ast, {
     enter: (node) => {
-      if (node.type === 'CallExpression' && node.callee.name === 'fillet') {
+      // Check if we are entering an edge treatment call
-        inFillet = true
+      if (
+        node.type === 'CallExpression' &&
+        isEdgeTreatmentType(node.callee.name)
+      ) {
+        inEdgeTreatment = true
       }
-      if (inFillet && node.type === 'ObjectExpression') {
+      if (inEdgeTreatment && node.type === 'ObjectExpression') {
         node.properties.forEach((prop) => {
           if (
             prop.key.name === 'tags' &&
@@ -564,17 +671,15 @@ export const isTagUsedInFillet = ({
       }
       if (
         inObj &&
-        inFillet &&
+        inEdgeTreatment &&
         node.type === 'CallExpression' &&
-        (node.callee.name === 'getOppositeEdge' ||
+        isEdgeType(node.callee.name)
-          node.callee.name === 'getNextAdjacentEdge' ||
-          node.callee.name === 'getPreviousAdjacentEdge')
       ) {
         inTagHelper = node.callee.name
       }
       if (
         inObj &&
-        inFillet &&
+        inEdgeTreatment &&
         !inTagHelper &&
         node.type === 'Identifier' &&
         node.name === tag
@@ -583,7 +688,7 @@ export const isTagUsedInFillet = ({
       }
       if (
         inObj &&
-        inFillet &&
+        inEdgeTreatment &&
         inTagHelper &&
         node.type === 'Identifier' &&
         node.name === tag
@@ -592,10 +697,13 @@ export const isTagUsedInFillet = ({
       }
     },
     leave: (node) => {
-      if (node.type === 'CallExpression' && node.callee.name === 'fillet') {
+      if (
-        inFillet = false
+        node.type === 'CallExpression' &&
+        isEdgeTreatmentType(node.callee.name)
+      ) {
+        inEdgeTreatment = false
       }
-      if (inFillet && node.type === 'ObjectExpression') {
+      if (inEdgeTreatment && node.type === 'ObjectExpression') {
         node.properties.forEach((prop) => {
           if (
             prop.key.name === 'tags' &&
@@ -607,11 +715,9 @@ export const isTagUsedInFillet = ({
       }
       if (
         inObj &&
-        inFillet &&
+        inEdgeTreatment &&
         node.type === 'CallExpression' &&
-        (node.callee.name === 'getOppositeEdge' ||
+        isEdgeType(node.callee.name)
-          node.callee.name === 'getNextAdjacentEdge' ||
-          node.callee.name === 'getPreviousAdjacentEdge')
       ) {
         inTagHelper = ''
       }

src/lang/modifyAst/addShell.ts

@@ -0,0 +1,124 @@
+import { ArtifactGraph } from 'lang/std/artifactGraph'
+import { Selections } from 'lib/selections'
+import { Expr } from 'wasm-lib/kcl/bindings/Expr'
+import { Program } from 'wasm-lib/kcl/bindings/Program'
+import { Node } from 'wasm-lib/kcl/bindings/Node'
+import { PathToNode, VariableDeclarator } from 'lang/wasm'
+import {
+  getPathToExtrudeForSegmentSelection,
+  mutateAstWithTagForSketchSegment,
+} from './addEdgeTreatment'
+import { getNodeFromPath } from 'lang/queryAst'
+import { err } from 'lib/trap'
+import {
+  createLiteral,
+  createIdentifier,
+  findUniqueName,
+  createCallExpressionStdLib,
+  createObjectExpression,
+  createArrayExpression,
+  createVariableDeclaration,
+} from 'lang/modifyAst'
+import { KCL_DEFAULT_CONSTANT_PREFIXES } from 'lib/constants'
+
+export function addShell({
+  node,
+  selection,
+  artifactGraph,
+  thickness,
+}: {
+  node: Node<Program>
+  selection: Selections
+  artifactGraph: ArtifactGraph
+  thickness: Expr
+}): Error | { modifiedAst: Node<Program>; pathToNode: PathToNode } {
+  const modifiedAst = structuredClone(node)
+
+  // Look up the corresponding extrude
+  const clonedAstForGetExtrude = structuredClone(modifiedAst)
+
+  const expressions: Expr[] = []
+  let pathToExtrudeNode: PathToNode | undefined = undefined
+  for (const graphSelection of selection.graphSelections) {
+    const extrudeLookupResult = getPathToExtrudeForSegmentSelection(
+      clonedAstForGetExtrude,
+      graphSelection,
+      artifactGraph
+    )
+    if (err(extrudeLookupResult)) {
+      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>(
+      modifiedAst,
+      graphSelection.codeRef.pathToNode,
+      'VariableDeclarator'
+    )
+    if (err(sketchNode)) {
+      return sketchNode
+    }
+
+    const selectedArtifact = graphSelection.artifact
+    if (!selectedArtifact) {
+      return new Error('Bad artifact')
+    }
+
+    // Check on the selection, and handle the wall vs cap casees
+    let expr: Expr
+    if (selectedArtifact.type === 'cap') {
+      expr = createLiteral(selectedArtifact.subType)
+    } else if (selectedArtifact.type === 'wall') {
+      const tagResult = mutateAstWithTagForSketchSegment(
+        modifiedAst,
+        extrudeLookupResult.pathToSegmentNode
+      )
+      if (err(tagResult)) return tagResult
+      const { tag } = tagResult
+      expr = createIdentifier(tag)
+    } else {
+      continue
+    }
+    expressions.push(expr)
+  }
+
+  if (!pathToExtrudeNode) return new Error('No extrude found')
+
+  const extrudeNode = getNodeFromPath<VariableDeclarator>(
+    modifiedAst,
+    pathToExtrudeNode,
+    'VariableDeclarator'
+  )
+  if (err(extrudeNode)) {
+    return extrudeNode
+  }
+
+  const name = findUniqueName(node, KCL_DEFAULT_CONSTANT_PREFIXES.SHELL)
+  const shell = createCallExpressionStdLib('shell', [
+    createObjectExpression({
+      faces: createArrayExpression(expressions),
+      thickness,
+    }),
+    createIdentifier(extrudeNode.node.id.name),
+  ])
+  const declaration = createVariableDeclaration(name, shell)
+
+  // TODO: check if we should append at the end like here or right after the extrude
+  modifiedAst.body.push(declaration)
+  const pathToNode: PathToNode = [
+    ['body', ''],
+    [modifiedAst.body.length - 1, 'index'],
+    ['declarations', 'VariableDeclaration'],
+    ['0', 'index'],
+    ['init', 'VariableDeclarator'],
+    ['arguments', 'CallExpression'],
+    [0, 'index'],
+  ]
+  return {
+    modifiedAst,
+    pathToNode,
+  }
+}

src/lang/queryAst.test.ts

@@ -1,4 +1,10 @@
-import { parse, recast, initPromise, PathToNode, Identifier } from './wasm'
+import {
+  assertParse,
+  recast,
+  initPromise,
+  PathToNode,
+  Identifier,
+} from './wasm'
 import {
   findAllPreviousVariables,
   isNodeSafeToReplace,
@@ -11,6 +17,7 @@ import {
   doesSceneHaveSweepableSketch,
   traverse,
   getNodeFromPath,
+  doesSceneHaveExtrudedSketch,
 } from './queryAst'
 import { enginelessExecutor } from '../lib/testHelpers'
 import {
@@ -45,14 +52,13 @@ part001 = startSketchOn('XY')
 variableBelowShouldNotBeIncluded = 3
 `
     const rangeStart = code.indexOf('// selection-range-7ish-before-this') - 7
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const execState = await enginelessExecutor(ast)
 
     const { variables, bodyPath, insertIndex } = findAllPreviousVariables(
       ast,
       execState.memory,
-      [rangeStart, rangeStart]
+      [rangeStart, rangeStart, true]
     )
     expect(variables).toEqual([
       { key: 'baseThick', value: 1 },
@@ -80,10 +86,9 @@ describe('testing argIsNotIdentifier', () => {
 yo = 5 + 6
 yo2 = hmm([identifierGuy + 5])`
   it('find a safe binaryExpression', () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const rangeStart = code.indexOf('100 + 100') + 2
-    const result = isNodeSafeToReplace(ast, [rangeStart, rangeStart])
+    const result = isNodeSafeToReplace(ast, [rangeStart, rangeStart, true])
     if (err(result)) throw result
     expect(result.isSafe).toBe(true)
     expect(result.value?.type).toBe('BinaryExpression')
@@ -94,20 +99,18 @@ yo2 = hmm([identifierGuy + 5])`
     expect(outCode).toContain(`angledLine([replaceName, 3.09], %)`)
   })
   it('find a safe Identifier', () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const rangeStart = code.indexOf('abc')
-    const result = isNodeSafeToReplace(ast, [rangeStart, rangeStart])
+    const result = isNodeSafeToReplace(ast, [rangeStart, rangeStart, true])
     if (err(result)) throw result
     expect(result.isSafe).toBe(true)
     expect(result.value?.type).toBe('Identifier')
     expect(code.slice(result.value.start, result.value.end)).toBe('abc')
   })
   it('find a safe CallExpression', () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const rangeStart = code.indexOf('def')
-    const result = isNodeSafeToReplace(ast, [rangeStart, rangeStart])
+    const result = isNodeSafeToReplace(ast, [rangeStart, rangeStart, true])
     if (err(result)) throw result
     expect(result.isSafe).toBe(true)
     expect(result.value?.type).toBe('CallExpression')
@@ -118,10 +121,9 @@ yo2 = hmm([identifierGuy + 5])`
     expect(outCode).toContain(`angledLine([replaceName, 3.09], %)`)
   })
   it('find an UNsafe CallExpression, as it has a PipeSubstitution', () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const rangeStart = code.indexOf('ghi')
-    const range: [number, number] = [rangeStart, rangeStart]
+    const range: [number, number, boolean] = [rangeStart, rangeStart, true]
     const result = isNodeSafeToReplace(ast, range)
     if (err(result)) throw result
     expect(result.isSafe).toBe(false)
@@ -129,10 +131,9 @@ yo2 = hmm([identifierGuy + 5])`
     expect(code.slice(result.value.start, result.value.end)).toBe('ghi(%)')
   })
   it('find an UNsafe Identifier, as it is a callee', () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const rangeStart = code.indexOf('ine([2.8,')
-    const result = isNodeSafeToReplace(ast, [rangeStart, rangeStart])
+    const result = isNodeSafeToReplace(ast, [rangeStart, rangeStart, true])
     if (err(result)) throw result
     expect(result.isSafe).toBe(false)
     expect(result.value?.type).toBe('CallExpression')
@@ -141,10 +142,9 @@ yo2 = hmm([identifierGuy + 5])`
     )
   })
   it("find a safe BinaryExpression that's assigned to a variable", () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const rangeStart = code.indexOf('5 + 6') + 1
-    const result = isNodeSafeToReplace(ast, [rangeStart, rangeStart])
+    const result = isNodeSafeToReplace(ast, [rangeStart, rangeStart, true])
     if (err(result)) throw result
     expect(result.isSafe).toBe(true)
     expect(result.value?.type).toBe('BinaryExpression')
@@ -155,10 +155,9 @@ yo2 = hmm([identifierGuy + 5])`
     expect(outCode).toContain(`yo = replaceName`)
   })
   it('find a safe BinaryExpression that has a CallExpression within', () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     const rangeStart = code.indexOf('jkl') + 1
-    const result = isNodeSafeToReplace(ast, [rangeStart, rangeStart])
+    const result = isNodeSafeToReplace(ast, [rangeStart, rangeStart, true])
     if (err(result)) throw result
     expect(result.isSafe).toBe(true)
     expect(result.value?.type).toBe('BinaryExpression')
@@ -172,11 +171,10 @@ yo2 = hmm([identifierGuy + 5])`
     expect(outCode).toContain(`angledLine([replaceName, 3.09], %)`)
   })
   it('find a safe BinaryExpression within a CallExpression', () => {
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
 
     const rangeStart = code.indexOf('identifierGuy') + 1
-    const result = isNodeSafeToReplace(ast, [rangeStart, rangeStart])
+    const result = isNodeSafeToReplace(ast, [rangeStart, rangeStart, true])
     if (err(result)) throw result
 
     expect(result.isSafe).toBe(true)
@@ -223,15 +221,17 @@ describe('testing getNodePathFromSourceRange', () => {
   it('finds the second line when cursor is put at the end', () => {
     const searchLn = `line([0.94, 2.61], %)`
     const sourceIndex = code.indexOf(searchLn) + searchLn.length
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
 
-    const result = getNodePathFromSourceRange(ast, [sourceIndex, sourceIndex])
+    const result = getNodePathFromSourceRange(ast, [
+      sourceIndex,
+      sourceIndex,
+      true,
+    ])
     expect(result).toEqual([
       ['body', ''],
       [0, 'index'],
-      ['declarations', 'VariableDeclaration'],
+      ['declaration', 'VariableDeclaration'],
-      [0, 'index'],
       ['init', ''],
       ['body', 'PipeExpression'],
       [2, 'index'],
@@ -240,15 +240,17 @@ describe('testing getNodePathFromSourceRange', () => {
   it('finds the last line when cursor is put at the end', () => {
     const searchLn = `line([-0.21, -1.4], %)`
     const sourceIndex = code.indexOf(searchLn) + searchLn.length
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
 
-    const result = getNodePathFromSourceRange(ast, [sourceIndex, sourceIndex])
+    const result = getNodePathFromSourceRange(ast, [
+      sourceIndex,
+      sourceIndex,
+      true,
+    ])
     const expected = [
       ['body', ''],
       [0, 'index'],
-      ['declarations', 'VariableDeclaration'],
+      ['declaration', 'VariableDeclaration'],
-      [0, 'index'],
       ['init', ''],
       ['body', 'PipeExpression'],
       [3, 'index'],
@@ -259,12 +261,14 @@ describe('testing getNodePathFromSourceRange', () => {
     const startResult = getNodePathFromSourceRange(ast, [
       startSourceIndex,
       startSourceIndex,
+      true,
     ])
     expect(startResult).toEqual([...expected, ['callee', 'CallExpression']])
     // expect similar result when whole line is selected
     const selectWholeThing = getNodePathFromSourceRange(ast, [
       startSourceIndex,
       sourceIndex,
+      true,
     ])
     expect(selectWholeThing).toEqual(expected)
   })
@@ -278,15 +282,17 @@ describe('testing getNodePathFromSourceRange', () => {
     }`
     const searchLn = `x > y`
     const sourceIndex = code.indexOf(searchLn)
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
 
-    const result = getNodePathFromSourceRange(ast, [sourceIndex, sourceIndex])
+    const result = getNodePathFromSourceRange(ast, [
+      sourceIndex,
+      sourceIndex,
+      true,
+    ])
     expect(result).toEqual([
       ['body', ''],
       [1, 'index'],
-      ['declarations', 'VariableDeclaration'],
+      ['declaration', 'VariableDeclaration'],
-      [0, 'index'],
       ['init', ''],
       ['cond', 'IfExpression'],
       ['left', 'BinaryExpression'],
@@ -306,15 +312,17 @@ describe('testing getNodePathFromSourceRange', () => {
     }`
     const searchLn = `x + 1`
     const sourceIndex = code.indexOf(searchLn)
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
 
-    const result = getNodePathFromSourceRange(ast, [sourceIndex, sourceIndex])
+    const result = getNodePathFromSourceRange(ast, [
+      sourceIndex,
+      sourceIndex,
+      true,
+    ])
     expect(result).toEqual([
       ['body', ''],
       [1, 'index'],
-      ['declarations', 'VariableDeclaration'],
+      ['declaration', 'VariableDeclaration'],
-      [0, 'index'],
       ['init', ''],
       ['then_val', 'IfExpression'],
       ['body', 'IfExpression'],
@@ -332,14 +340,18 @@ describe('testing getNodePathFromSourceRange', () => {
     const code = `import foo, bar as baz from 'thing.kcl'`
     const searchLn = `bar`
     const sourceIndex = code.indexOf(searchLn)
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
 
-    const result = getNodePathFromSourceRange(ast, [sourceIndex, sourceIndex])
+    const result = getNodePathFromSourceRange(ast, [
+      sourceIndex,
+      sourceIndex,
+      true,
+    ])
     expect(result).toEqual([
       ['body', ''],
       [0, 'index'],
-      ['items', 'ImportStatement'],
+      ['selector', 'ImportStatement'],
+      ['items', 'ImportSelector'],
       [1, 'index'],
       ['name', 'ImportItem'],
     ])
@@ -360,14 +372,13 @@ part001 = startSketchAt([-1.41, 3.46])
   |> angledLine([-175, segLen(seg01)], %)
   |> close(%)
 `
-    const ast = parse(exampleCode)
+    const ast = assertParse(exampleCode)
-    if (err(ast)) throw ast
 
     const result = doesPipeHaveCallExp({
       calleeName: 'close',
       ast,
       selection: {
-        codeRef: codeRefFromRange([100, 101], ast),
+        codeRef: codeRefFromRange([100, 101, true], ast),
       },
     })
     expect(result).toEqual(true)
@@ -382,14 +393,13 @@ part001 = startSketchAt([-1.41, 3.46])
   |> close(%)
   |> extrude(1, %)
 `
-    const ast = parse(exampleCode)
+    const ast = assertParse(exampleCode)
-    if (err(ast)) throw ast
 
     const result = doesPipeHaveCallExp({
       calleeName: 'extrude',
       ast,
       selection: {
-        codeRef: codeRefFromRange([100, 101], ast),
+        codeRef: codeRefFromRange([100, 101, true], ast),
       },
     })
     expect(result).toEqual(true)
@@ -402,28 +412,26 @@ part001 = startSketchAt([-1.41, 3.46])
   |> line([-3.22, -7.36], %)
   |> angledLine([-175, segLen(seg01)], %)
 `
-    const ast = parse(exampleCode)
+    const ast = assertParse(exampleCode)
-    if (err(ast)) throw ast
 
     const result = doesPipeHaveCallExp({
       calleeName: 'close',
       ast,
       selection: {
-        codeRef: codeRefFromRange([100, 101], ast),
+        codeRef: codeRefFromRange([100, 101, true], ast),
       },
     })
     expect(result).toEqual(false)
   })
   it('returns false if not a pipe', () => {
     const exampleCode = `length001 = 2`
-    const ast = parse(exampleCode)
+    const ast = assertParse(exampleCode)
-    if (err(ast)) throw ast
 
     const result = doesPipeHaveCallExp({
       calleeName: 'close',
       ast,
       selection: {
-        codeRef: codeRefFromRange([9, 10], ast),
+        codeRef: codeRefFromRange([9, 10, true], ast),
       },
     })
     expect(result).toEqual(false)
@@ -438,14 +446,13 @@ part001 = startSketchAt([-1.41, 3.46])
   |> angledLine([-35, length001], %)
   |> line([-3.22, -7.36], %)
   |> angledLine([-175, segLen(seg01)], %)`
-    const ast = parse(exampleCode)
+    const ast = assertParse(exampleCode)
-    if (err(ast)) throw ast
 
     const execState = await enginelessExecutor(ast)
     const result = hasExtrudeSketch({
       ast,
       selection: {
-        codeRef: codeRefFromRange([100, 101], ast),
+        codeRef: codeRefFromRange([100, 101, true], ast),
       },
       programMemory: execState.memory,
     })
@@ -459,14 +466,13 @@ part001 = startSketchAt([-1.41, 3.46])
   |> line([-3.22, -7.36], %)
   |> angledLine([-175, segLen(seg01)], %)
   |> extrude(1, %)`
-    const ast = parse(exampleCode)
+    const ast = assertParse(exampleCode)
-    if (err(ast)) throw ast
 
     const execState = await enginelessExecutor(ast)
     const result = hasExtrudeSketch({
       ast,
       selection: {
-        codeRef: codeRefFromRange([100, 101], ast),
+        codeRef: codeRefFromRange([100, 101, true], ast),
       },
       programMemory: execState.memory,
     })
@@ -474,14 +480,13 @@ part001 = startSketchAt([-1.41, 3.46])
   })
   it('finds nothing', async () => {
     const exampleCode = `length001 = 2`
-    const ast = parse(exampleCode)
+    const ast = assertParse(exampleCode)
-    if (err(ast)) throw ast
 
     const execState = await enginelessExecutor(ast)
     const result = hasExtrudeSketch({
       ast,
       selection: {
-        codeRef: codeRefFromRange([10, 11], ast),
+        codeRef: codeRefFromRange([10, 11, true], ast),
       },
       programMemory: execState.memory,
     })
@@ -498,8 +503,7 @@ describe('Testing findUsesOfTagInPipe', () => {
 |> line([306.21, 198.87], %)
 |> angledLine([65, segLen(seg01)], %)`
   it('finds the current segment', async () => {
-    const ast = parse(exampleCode)
+    const ast = assertParse(exampleCode)
-    if (err(ast)) throw ast
 
     const lineOfInterest = `198.85], %, $seg01`
     const characterIndex =
@@ -507,6 +511,7 @@ describe('Testing findUsesOfTagInPipe', () => {
     const pathToNode = getNodePathFromSourceRange(ast, [
       characterIndex,
       characterIndex,
+      true,
     ])
     const result = findUsesOfTagInPipe(ast, pathToNode)
     expect(result).toHaveLength(2)
@@ -515,8 +520,7 @@ describe('Testing findUsesOfTagInPipe', () => {
     })
   })
   it('find no tag if line has no tag', () => {
-    const ast = parse(exampleCode)
+    const ast = assertParse(exampleCode)
-    if (err(ast)) throw ast
 
     const lineOfInterest = `line([306.21, 198.82], %)`
     const characterIndex =
@@ -524,6 +528,7 @@ describe('Testing findUsesOfTagInPipe', () => {
     const pathToNode = getNodePathFromSourceRange(ast, [
       characterIndex,
       characterIndex,
+      true,
     ])
     const result = findUsesOfTagInPipe(ast, pathToNode)
     expect(result).toHaveLength(0)
@@ -564,42 +569,39 @@ sketch003 = startSketchOn(extrude001, 'END')
   |> extrude(3.14, %)
 `
   it('identifies sketch001 pipe as extruded (extrusion after pipe)', async () => {
-    const ast = parse(exampleCode)
+    const ast = assertParse(exampleCode)
-    if (err(ast)) throw ast
     const lineOfInterest = `line([4.99, -0.46], %, $seg01)`
     const characterIndex =
       exampleCode.indexOf(lineOfInterest) + lineOfInterest.length
     const extruded = hasSketchPipeBeenExtruded(
       {
-        codeRef: codeRefFromRange([characterIndex, characterIndex], ast),
+        codeRef: codeRefFromRange([characterIndex, characterIndex, true], ast),
       },
       ast
     )
     expect(extruded).toBeTruthy()
   })
   it('identifies sketch002 pipe as not extruded', async () => {
-    const ast = parse(exampleCode)
+    const ast = assertParse(exampleCode)
-    if (err(ast)) throw ast
     const lineOfInterest = `line([2.45, -0.2], %)`
     const characterIndex =
       exampleCode.indexOf(lineOfInterest) + lineOfInterest.length
     const extruded = hasSketchPipeBeenExtruded(
       {
-        codeRef: codeRefFromRange([characterIndex, characterIndex], ast),
+        codeRef: codeRefFromRange([characterIndex, characterIndex, true], ast),
       },
       ast
     )
     expect(extruded).toBeFalsy()
   })
   it('identifies sketch003 pipe as extruded (extrusion within pipe)', async () => {
-    const ast = parse(exampleCode)
+    const ast = assertParse(exampleCode)
-    if (err(ast)) throw ast
     const lineOfInterest = `|> line([3.12, 1.74], %)`
     const characterIndex =
       exampleCode.indexOf(lineOfInterest) + lineOfInterest.length
     const extruded = hasSketchPipeBeenExtruded(
       {
-        codeRef: codeRefFromRange([characterIndex, characterIndex], ast),
+        codeRef: codeRefFromRange([characterIndex, characterIndex, true], ast),
       },
       ast
     )
@@ -623,11 +625,21 @@ sketch002 = startSketchOn(extrude001, $seg01)
   |> lineTo([profileStartX(%), profileStartY(%)], %)
   |> close(%)
 `
-    const ast = parse(exampleCode)
+    const ast = assertParse(exampleCode)
-    if (err(ast)) throw ast
     const extrudable = doesSceneHaveSweepableSketch(ast)
     expect(extrudable).toBeTruthy()
   })
+  it('finds sketch001 and sketch002 pipes to be lofted', async () => {
+    const exampleCode = `sketch001 = startSketchOn('XZ')
+  |> circle({ center = [0, 0], radius = 1 }, %)
+plane001 = offsetPlane('XZ', 2)
+sketch002 = startSketchOn(plane001)
+  |> circle({ center = [0, 0], radius = 3 }, %)
+`
+    const ast = assertParse(exampleCode)
+    const extrudable = doesSceneHaveSweepableSketch(ast, 2)
+    expect(extrudable).toBeTruthy()
+  })
   it('find sketch002 NOT pipe to be extruded', async () => {
     const exampleCode = `sketch001 = startSketchOn('XZ')
   |> startProfileAt([3.29, 7.86], %)
@@ -636,10 +648,41 @@ sketch002 = startSketchOn(extrude001, $seg01)
   |> line([-17.67, 0.85], %)
   |> close(%)
 extrude001 = extrude(10, sketch001)
+`
+    const ast = assertParse(exampleCode)
+    const extrudable = doesSceneHaveSweepableSketch(ast)
+    expect(extrudable).toBeFalsy()
+  })
+})
+
+describe('Testing doesSceneHaveExtrudedSketch', () => {
+  it('finds extruded sketch as variable', async () => {
+    const exampleCode = `sketch001 = startSketchOn('XZ')
+  |> circle({ center = [0, 0], radius = 1 }, %)
+extrude001 = extrude(1, sketch001)
 `
     const ast = parse(exampleCode)
     if (err(ast)) throw ast
-    const extrudable = doesSceneHaveSweepableSketch(ast)
+    const extrudable = doesSceneHaveExtrudedSketch(ast)
+    expect(extrudable).toBeTruthy()
+  })
+  it('finds extruded sketch in pipe', async () => {
+    const exampleCode = `extrude001 = startSketchOn('XZ')
+  |> circle({ center = [0, 0], radius = 1 }, %)
+  |> extrude(1, %)
+`
+    const ast = parse(exampleCode)
+    if (err(ast)) throw ast
+    const extrudable = doesSceneHaveExtrudedSketch(ast)
+    expect(extrudable).toBeTruthy()
+  })
+  it('finds no extrusion with sketch only', async () => {
+    const exampleCode = `extrude001 = startSketchOn('XZ')
+  |> circle({ center = [0, 0], radius = 1 }, %)
+`
+    const ast = parse(exampleCode)
+    if (err(ast)) throw ast
+    const extrudable = doesSceneHaveExtrudedSketch(ast)
     expect(extrudable).toBeFalsy()
   })
 })
@@ -666,8 +709,7 @@ myNestedVar = [
 }
 ]
   `
-    const ast = parse(code)
+    const ast = assertParse(code)
-    if (err(ast)) throw ast
     let pathToNode: PathToNode = []
     traverse(ast, {
       enter: (node, path) => {
@@ -689,6 +731,7 @@ myNestedVar = [
     const pathToNode2 = getNodePathFromSourceRange(ast, [
       literalIndex + 2,
       literalIndex + 2,
+      true,
     ])
     expect(pathToNode).toEqual(pathToNode2)
   })

src/lang/queryAst.ts

@@ -16,6 +16,7 @@ import {
   sketchFromKclValue,
   sketchFromKclValueOptional,
   SourceRange,
+  sourceRangeFromRust,
   SyntaxType,
   VariableDeclaration,
   VariableDeclarator,
@@ -173,6 +174,30 @@ function moreNodePathFromSourceRange(
     }
     return path
   }
+
+  if (_node.type === 'CallExpressionKw' && isInRange) {
+    const { callee, arguments: args } = _node
+    if (
+      callee.type === 'Identifier' &&
+      callee.start <= start &&
+      callee.end >= end
+    ) {
+      path.push(['callee', 'CallExpressionKw'])
+      return path
+    }
+    if (args.length > 0) {
+      for (let argIndex = 0; argIndex < args.length; argIndex++) {
+        const arg = args[argIndex].arg
+        if (arg.start <= start && arg.end >= end) {
+          path.push(['arguments', 'CallExpressionKw'])
+          path.push([argIndex, 'index'])
+          return moreNodePathFromSourceRange(arg, sourceRange, path)
+        }
+      }
+    }
+    return path
+  }
+
   if (_node.type === 'BinaryExpression' && isInRange) {
     const { left, right } = _node
     if (left.start <= start && left.end >= end) {
@@ -234,13 +259,10 @@ function moreNodePathFromSourceRange(
     return moreNodePathFromSourceRange(expression, sourceRange, path)
   }
   if (_node.type === 'VariableDeclaration' && isInRange) {
-    const declarations = _node.declarations
+    const declaration = _node.declaration
 
-    for (let decIndex = 0; decIndex < declarations.length; decIndex++) {
-      const declaration = declarations[decIndex]
     if (declaration.start <= start && declaration.end >= end) {
-        path.push(['declarations', 'VariableDeclaration'])
+      path.push(['declaration', 'VariableDeclaration'])
-        path.push([decIndex, 'index'])
       const init = declaration.init
       if (init.start <= start && init.end >= end) {
         path.push(['init', ''])
@@ -248,22 +270,17 @@ function moreNodePathFromSourceRange(
       }
     }
   }
-  }
   if (_node.type === 'VariableDeclaration' && isInRange) {
-    const declarations = _node.declarations
+    const declaration = _node.declaration
 
-    for (let decIndex = 0; decIndex < declarations.length; decIndex++) {
-      const declaration = declarations[decIndex]
     if (declaration.start <= start && declaration.end >= end) {
       const init = declaration.init
       if (init.start <= start && init.end >= end) {
-          path.push(['declarations', 'VariableDeclaration'])
+        path.push(['declaration', 'VariableDeclaration'])
-          path.push([decIndex, 'index'])
         path.push(['init', ''])
         return moreNodePathFromSourceRange(init, sourceRange, path)
       }
     }
-    }
     return path
   }
   if (_node.type === 'UnaryExpression' && isInRange) {
@@ -355,17 +372,23 @@ function moreNodePathFromSourceRange(
   }
 
   if (_node.type === 'ImportStatement' && isInRange) {
-    const { items } = _node
+    if (_node.selector && _node.selector.type === 'List') {
+      path.push(['selector', 'ImportStatement'])
+      const { items } = _node.selector
       for (let i = 0; i < items.length; i++) {
         const item = items[i]
         if (item.start <= start && item.end >= end) {
-        path.push(['items', 'ImportStatement'])
+          path.push(['items', 'ImportSelector'])
           path.push([i, 'index'])
           if (item.name.start <= start && item.name.end >= end) {
             path.push(['name', 'ImportItem'])
             return path
           }
-        if (item.alias && item.alias.start <= start && item.alias.end >= end) {
+          if (
+            item.alias &&
+            item.alias.start <= start &&
+            item.alias.end >= end
+          ) {
             path.push(['alias', 'ImportItem'])
             return path
           }
@@ -374,6 +397,7 @@ function moreNodePathFromSourceRange(
       }
       return path
     }
+  }
 
   console.error('not implemented: ' + node.type)
 
@@ -426,13 +450,10 @@ export function traverse(
     traverse(node, option, pathToNode)
 
   if (_node.type === 'VariableDeclaration') {
-    _node.declarations.forEach((declaration, index) =>
+    _traverse(_node.declaration, [
-      _traverse(declaration, [
       ...pathToNode,
-        ['declarations', 'VariableDeclaration'],
+      ['declaration', 'VariableDeclaration'],
-        [index, 'index'],
     ])
-    )
   } else if (_node.type === 'VariableDeclarator') {
     _traverse(_node.init, [...pathToNode, ['init', '']])
   } else if (_node.type === 'PipeExpression') {
@@ -542,7 +563,7 @@ export function findAllPreviousVariablesPath(
   const variables: PrevVariable<any>[] = []
   bodyItems?.forEach?.((item) => {
     if (item.type !== 'VariableDeclaration' || item.end > startRange) return
-    const varName = item.declarations[0].id.name
+    const varName = item.declaration.id.name
     const varValue = programMemory?.get(varName)
     if (!varValue || typeof varValue?.value !== type) return
     variables.push({
@@ -645,7 +666,7 @@ export function isNodeSafeToReplacePath(
 
 export function isNodeSafeToReplace(
   ast: Node<Program>,
-  sourceRange: [number, number]
+  sourceRange: SourceRange
 ):
   | {
       isSafe: boolean
@@ -736,7 +757,7 @@ export function isLinesParallelAndConstrained(
     const _varDec = getNodeFromPath(ast, primaryPath, 'VariableDeclaration')
     if (err(_varDec)) return _varDec
     const varDec = _varDec.node
-    const varName = (varDec as VariableDeclaration)?.declarations[0]?.id?.name
+    const varName = (varDec as VariableDeclaration)?.declaration.id?.name
     const sg = sketchFromKclValue(programMemory?.get(varName), varName)
     if (err(sg)) return sg
     const _primarySegment = getSketchSegmentFromSourceRange(
@@ -797,7 +818,7 @@ export function isLinesParallelAndConstrained(
     return {
       isParallelAndConstrained,
       selection: {
-        codeRef: codeRefFromRange(prevSourceRange, ast),
+        codeRef: codeRefFromRange(sourceRangeFromRust(prevSourceRange), ast),
         artifact: artifactGraph.get(prevSegment.__geoMeta.id),
       },
     }
@@ -856,7 +877,7 @@ export function hasExtrudeSketch({
   }
   const varDec = varDecMeta.node
   if (varDec.type !== 'VariableDeclaration') return false
-  const varName = varDec.declarations[0].id.name
+  const varName = varDec.declaration.id.name
   const varValue = programMemory?.get(varName)
   return (
     varValue?.type === 'Solid' ||
@@ -933,7 +954,8 @@ export function findUsesOfTagInPipe(
         return
       const tagArgValue =
         tagArg.type === 'TagDeclarator' ? String(tagArg.value) : tagArg.name
-      if (tagArgValue === tag) dependentRanges.push([node.start, node.end])
+      if (tagArgValue === tag)
+        dependentRanges.push([node.start, node.end, true])
     },
   })
   return dependentRanges
@@ -975,7 +997,9 @@ export function hasSketchPipeBeenExtruded(selection: Selection, ast: Program) {
         if (
           node.type === 'CallExpression' &&
           node.callee.type === 'Identifier' &&
-          (node.callee.name === 'extrude' || node.callee.name === 'revolve') &&
+          (node.callee.name === 'extrude' ||
+            node.callee.name === 'revolve' ||
+            node.callee.name === 'loft') &&
           node.arguments?.[1]?.type === 'Identifier' &&
           node.arguments[1].name === varDec.id.name
         ) {
@@ -988,7 +1012,7 @@ export function hasSketchPipeBeenExtruded(selection: Selection, ast: Program) {
 }
 
 /** File must contain at least one sketch that has not been extruded already */
-export function doesSceneHaveSweepableSketch(ast: Node<Program>) {
+export function doesSceneHaveSweepableSketch(ast: Node<Program>, count = 1) {
   const theMap: any = {}
   traverse(ast as any, {
     enter(node) {
@@ -1037,6 +1061,35 @@ export function doesSceneHaveSweepableSketch(ast: Node<Program>) {
       }
     },
   })
+  return Object.keys(theMap).length >= count
+}
+
+export function doesSceneHaveExtrudedSketch(ast: Node<Program>) {
+  const theMap: any = {}
+  traverse(ast as any, {
+    enter(node) {
+      if (
+        node.type === 'VariableDeclarator' &&
+        node.init?.type === 'PipeExpression'
+      ) {
+        for (const pipe of node.init.body) {
+          if (
+            pipe.type === 'CallExpression' &&
+            pipe.callee.name === 'extrude'
+          ) {
+            theMap[node.id.name] = true
+            break
+          }
+        }
+      } else if (
+        node.type === 'CallExpression' &&
+        node.callee.name === 'extrude' &&
+        node.arguments[1]?.type === 'Identifier'
+      ) {
+        theMap[node.moduleId] = true
+      }
+    },
+  })
   return Object.keys(theMap).length > 0
 }
 

src/lang/recast.test.ts

@@ -1,4 +1,4 @@
-import { parse, Program, recast, initPromise } from './wasm'
+import { assertParse, Program, recast, initPromise } from './wasm'
 import fs from 'node:fs'
 import { err } from 'lib/trap'
 
@@ -394,8 +394,6 @@ describe('it recasts binary expression using brackets where needed', () => {
 // helpers
 
 function code2ast(code: string): { ast: Program } {
-  const ast = parse(code)
+  const ast = assertParse(code)
-  // eslint-ignore-next-line
-  if (err(ast)) throw ast
   return { ast }
 }

src/lang/std/__snapshots__/artifactGraph.test.ts.snap

@@ -11,8 +11,8 @@ Map {
         ],
       ],
       "range": [
-        37,
+        12,
-        64,
+        31,
         0,
       ],
     },

src/lang/std/artifactGraph.test.ts

@@ -1,4 +1,4 @@
-import { makeDefaultPlanes, parse, initPromise, Program } from 'lang/wasm'
+import { makeDefaultPlanes, assertParse, initPromise, Program } from 'lang/wasm'
 import { Models } from '@kittycad/lib'
 import {
   OrderedCommand,
@@ -148,11 +148,7 @@ beforeAll(async () => {
         ][]
         const cacheToWriteToFileTemp: Partial<CacheShape> = {}
         for (const [codeKey, code] of cacheEntries) {
-          const ast = parse(code)
+          const ast = assertParse(code)
-          if (err(ast)) {
-            console.error(ast)
-            return Promise.reject(ast)
-          }
           await kclManager.executeAst({ ast })
 
           cacheToWriteToFileTemp[codeKey] = {
@@ -403,11 +399,7 @@ describe('capture graph of sketchOnFaceOnFace...', () => {
 })
 
 function getCommands(codeKey: CodeKey): CacheShape[CodeKey] & { ast: Program } {
-  const ast = parse(codeKey)
+  const ast = assertParse(codeKey)
-  if (err(ast)) {
-    console.error(ast)
-    throw ast
-  }
   const file = fs.readFileSync(fullPath, 'utf-8')
   const parsed: CacheShape = JSON.parse(file)
   // these either already exist from the last run, or were created in