demo zoom not working

Signed-off-by: Jess Frazelle <github@jessfraz.com>

.github/workflows/build-test-publish-apps.yml

@@ -51,8 +51,6 @@ jobs:
         run: |
           VERSION=$(date +'%-y.%-m.%-d') yarn bump-jsons
 
-      # TODO: see if we need to inject updater nightly URL here https://dl.zoo.dev/releases/modeling-app/nightly/last_update.json
-
       - uses: actions/upload-artifact@v3
         with:
           name: prepared-files
@@ -63,12 +61,25 @@ jobs:
       - id: export_version
         run: echo "version=`cat package.json | jq -r '.version'`" >> "$GITHUB_OUTPUT"
 
+      - name: Prepare electron-builder.yml file for nightly
+        if: ${{ github.event_name == 'schedule' }}
+        run: |
+          yq -i '.publish[0].url = "https://dl.zoo.dev/releases/modeling-app/nightly"' electron-builder.yml
+
+      - uses: actions/upload-artifact@v3
+        if: ${{ github.event_name == 'schedule' }}
+        with:
+          name: prepared-files-nightly
+          path: |
+            electron-builder.yml
+
       - name: Prepare electron-builder.yml file for updater test
         if: ${{ env.CUT_RELEASE_PR == 'true' }}
         run: |
           yq -i '.publish[0].url = "https://dl.zoo.dev/releases/modeling-app/updater-test"' electron-builder.yml
 
       - uses: actions/upload-artifact@v3
+        if: ${{ env.CUT_RELEASE_PR == 'true' }}
         with:
           name: prepared-files-updater-test
           path: |
@@ -108,6 +119,16 @@ jobs:
           mkdir src/wasm-lib/pkg
           cp prepared-files/src/wasm-lib/pkg/wasm_lib* src/wasm-lib/pkg
 
+      - uses: actions/download-artifact@v3
+        if: ${{ github.event_name == 'schedule' }}
+        name: prepared-files-nightly
+
+      - name: Copy updated electron-builder.yml file for nightly build
+        if: ${{ github.event_name == 'schedule' }}
+        run: |
+          ls -R prepared-files-nightly
+          cp prepared-files-nightly/electron-builder.yml electron-builder.yml
+
       - name: Sync node version and setup cache
         uses: actions/setup-node@v4
         with:
@@ -152,11 +173,17 @@ jobs:
 
       - uses: actions/upload-artifact@v3
         with:
-          name: out-${{ matrix.os }}
+          name: out-arm64-${{ matrix.os }}
           path: |
-            out/Zoo*.*
+            out/Zoo*arm64*.*
             out/latest*.yml
 
+      - uses: actions/upload-artifact@v3
+        with:
+          name: out-x64-${{ matrix.os }}
+          path: |
+            out/Zoo*x*64*.*
+
       # TODO: add the 'Build for Mac TestFlight (nightly)' stage back
 
       - uses: actions/download-artifact@v3
@@ -176,10 +203,16 @@ jobs:
       - uses: actions/upload-artifact@v3
         if: ${{ env.CUT_RELEASE_PR == 'true' }}
         with:
-          name: updater-test-${{ matrix.os }}
+          name: updater-test-arm64-${{ matrix.os }}
           path: |
-            out/Zoo*.*
-            out/latest*.yml
+            out/Zoo*arm64*.*
+
+      - uses: actions/upload-artifact@v3
+        if: ${{ env.CUT_RELEASE_PR == 'true' }}
+        with:
+          name: updater-test-x64-${{ matrix.os }}
+          path: |
+            out/Zoo*x64*.*
 
 
   publish-apps-release:
@@ -201,17 +234,32 @@ jobs:
 
       - uses: actions/download-artifact@v3
         with:
-          name: out-windows-2022
+          name: out-arm64-windows-2022
           path: out
 
       - uses: actions/download-artifact@v3
         with:
-          name: out-macos-14
+          name: out-x64-windows-2022
           path: out
 
       - uses: actions/download-artifact@v3
         with:
-          name: out-ubuntu-22.04
+          name: out-arm64-macos-14
+          path: out
+
+      - uses: actions/download-artifact@v3
+        with:
+          name: out-x64-macos-14
+          path: out
+
+      - uses: actions/download-artifact@v3
+        with:
+          name: out-arm64-ubuntu-22.04
+          path: out
+
+      - uses: actions/download-artifact@v3
+        with:
+          name: out-x64-ubuntu-22.04
           path: out
 
       - name: Generate the download static endpoint

docs/kcl/index.md

@@ -19,7 +19,6 @@ layout: manual
 * [`angledLineToX`](kcl/angledLineToX)
 * [`angledLineToY`](kcl/angledLineToY)
 * [`arc`](kcl/arc)
-* [`arrayReduce`](kcl/arrayReduce)
 * [`asin`](kcl/asin)
 * [`assert`](kcl/assert)
 * [`assertEqual`](kcl/assertEqual)
@@ -62,6 +61,7 @@ layout: manual
 * [`log10`](kcl/log10)
 * [`log2`](kcl/log2)
 * [`m`](kcl/m)
+* [`map`](kcl/map)
 * [`max`](kcl/max)
 * [`min`](kcl/min)
 * [`mirror2d`](kcl/mirror2d)
@@ -78,6 +78,7 @@ layout: manual
 * [`profileStart`](kcl/profileStart)
 * [`profileStartX`](kcl/profileStartX)
 * [`profileStartY`](kcl/profileStartY)
+* [`reduce`](kcl/reduce)
 * [`rem`](kcl/rem)
 * [`revolve`](kcl/revolve)
 * [`segAng`](kcl/segAng)

docs/kcl/types/BinaryOperator.md

@@ -0,0 +1,89 @@
+---
+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:** `^`
+
+
+
+
+
+
+
+
+----
+
+
+
+

docs/kcl/types/BinaryPart.md

@@ -0,0 +1,161 @@
+---
+title: "BinaryPart"
+excerpt: ""
+layout: manual
+---
+
+
+
+
+
+
+**This schema accepts exactly one of the following:**
+
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `Literal`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: [`Identifier`](/docs/kcl/types/Identifier)|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `BinaryExpression`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `CallExpression`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `callee` |[`Identifier`](/docs/kcl/types/Identifier)|  | No |
+| `arguments` |`[` [`Expr`](/docs/kcl/types/Expr) `]`|  | No |
+| `optional` |`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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `UnaryExpression`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `MemberExpression`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `IfExpression`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+
+
+

docs/kcl/types/BodyItem.md

@@ -0,0 +1,75 @@
+---
+title: "BodyItem"
+excerpt: ""
+layout: manual
+---
+
+
+
+
+
+
+**This schema accepts exactly one of the following:**
+
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `ExpressionStatement`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `VariableDeclaration`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `declarations` |`[` [`VariableDeclarator`](/docs/kcl/types/VariableDeclarator) `]`|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `ReturnStatement`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+
+
+

docs/kcl/types/CommentStyle.md

@@ -0,0 +1,41 @@
+---
+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

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

docs/kcl/types/Environment.md

@@ -0,0 +1,21 @@
+---
+title: "Environment"
+excerpt: ""
+layout: manual
+---
+
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `bindings` |`object`|  | No |
+| `parent` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+
+

docs/kcl/types/EnvironmentRef.md

@@ -0,0 +1,16 @@
+---
+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

@@ -0,0 +1,297 @@
+---
+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 |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: [`Identifier`](/docs/kcl/types/Identifier)|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: [`TagDeclarator`](/docs/kcl/types#tag-declaration)|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `BinaryExpression`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: [`FunctionExpression`](/docs/kcl/types/FunctionExpression)|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `CallExpression`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+| `optional` |`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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `PipeExpression`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `PipeSubstitution`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `ArrayExpression`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `ObjectExpression`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `MemberExpression`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `UnaryExpression`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `IfExpression`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+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` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+
+
+----
+
+
+
+

docs/kcl/types/FunctionExpression.md

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

docs/kcl/types/Identifier.md

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

docs/kcl/types/KclValue.md

@@ -0,0 +1,195 @@
+---
+title: "KclValue"
+excerpt: "A memory item."
+layout: manual
+---
+
+A memory item.
+
+
+
+
+
+**This schema accepts exactly one of the following:**
+
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `UserVal`|  | No |
+| `value` |``|  | No |
+| `__meta` |`[` [`Metadata`](/docs/kcl/types/Metadata) `]`|  | No |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: [`TagIdentifier`](/docs/kcl/types#tag-identifier)|  | No |
+| `value` |`string`|  | No |
+| `info` |[`TagEngineInfo`](/docs/kcl/types/TagEngineInfo)|  | No |
+| `__meta` |`[` [`Metadata`](/docs/kcl/types/Metadata) `]`|  | No |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: [`TagDeclarator`](/docs/kcl/types#tag-declaration)|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+A plane.
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `Plane`|  | No |
+| `id` |`string`| The id of the plane. | No |
+| `value` |[`PlaneType`](/docs/kcl/types/PlaneType)| A memory item. | No |
+| `origin` |[`Point3d`](/docs/kcl/types/Point3d)| Origin of the plane. | No |
+| `xAxis` |[`Point3d`](/docs/kcl/types/Point3d)| What should the plane’s X axis be? | No |
+| `yAxis` |[`Point3d`](/docs/kcl/types/Point3d)| What should the plane’s Y axis be? | No |
+| `zAxis` |[`Point3d`](/docs/kcl/types/Point3d)| The z-axis (normal). | No |
+| `__meta` |`[` [`Metadata`](/docs/kcl/types/Metadata) `]`|  | No |
+
+
+----
+A face.
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `Face`|  | No |
+| `id` |`string`| The id of the face. | No |
+| `value` |`string`| The tag of the face. | No |
+| `xAxis` |[`Point3d`](/docs/kcl/types/Point3d)| What should the face’s X axis be? | No |
+| `yAxis` |[`Point3d`](/docs/kcl/types/Point3d)| What should the face’s Y axis be? | No |
+| `zAxis` |[`Point3d`](/docs/kcl/types/Point3d)| The z-axis (normal). | No |
+| `solid` |[`Solid`](/docs/kcl/types/Solid)| The solid the face is on. | No |
+| `__meta` |`[` [`Metadata`](/docs/kcl/types/Metadata) `]`|  | No |
+
+
+----
+An solid is a collection of extrude surfaces.
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: [`Solid`](/docs/kcl/types/Solid)|  | No |
+| `id` |`string`| The id of the solid. | No |
+| `value` |`[` [`ExtrudeSurface`](/docs/kcl/types/ExtrudeSurface) `]`| The extrude surfaces. | No |
+| `sketch` |[`Sketch`](/docs/kcl/types/Sketch)| The sketch. | No |
+| `height` |`number`| The height of the solid. | No |
+| `startCapId` |`string`| The id of the extrusion start cap | No |
+| `endCapId` |`string`| The id of the extrusion end cap | No |
+| `edgeCuts` |`[` [`EdgeCut`](/docs/kcl/types/EdgeCut) `]`| Chamfers or fillets on this solid. | No |
+| `__meta` |`[` [`Metadata`](/docs/kcl/types/Metadata) `]`| Metadata. | No |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `Solids`|  | No |
+| `value` |`[` [`Solid`](/docs/kcl/types/Solid) `]`|  | No |
+
+
+----
+Data for an imported geometry.
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: [`ImportedGeometry`](/docs/kcl/types/ImportedGeometry)|  | No |
+| `id` |`string`| The ID of the imported geometry. | No |
+| `value` |`[` `string` `]`| The original file paths. | No |
+| `__meta` |`[` [`Metadata`](/docs/kcl/types/Metadata) `]`|  | No |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `Function`|  | No |
+| `expression` |[`FunctionExpression`](/docs/kcl/types/FunctionExpression)| A memory item. | No |
+| `memory` |[`ProgramMemory`](/docs/kcl/types/ProgramMemory)| A memory item. | No |
+| `__meta` |`[` [`Metadata`](/docs/kcl/types/Metadata) `]`|  | No |
+
+
+----
+
+
+
+

docs/kcl/types/LiteralIdentifier.md

@@ -0,0 +1,56 @@
+---
+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 |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `type` |enum: `Literal`|  | No |
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | 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 |
+
+
+----
+
+
+
+

docs/kcl/types/LiteralValue.md

@@ -0,0 +1,57 @@
+---
+title: "LiteralValue"
+excerpt: ""
+layout: manual
+---
+
+
+
+
+
+**This schema accepts any of the following:**
+
+
+**Type:** `integer` (`int64`)
+
+
+
+
+
+
+
+----
+
+**Type:** `number` (`double`)
+
+
+
+
+
+
+
+----
+
+**Type:** `string`
+
+
+
+
+
+
+
+----
+
+**Type:** `boolean`
+
+
+
+
+
+
+
+----
+
+
+
+
+

docs/kcl/types/MemberObject.md

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

docs/kcl/types/NonCodeMeta.md

@@ -0,0 +1,22 @@
+---
+title: "NonCodeMeta"
+excerpt: ""
+layout: manual
+---
+
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `nonCodeNodes` |`object`|  | No |
+| `start` |`[` [`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

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

docs/kcl/types/NonCodeValue.md

@@ -0,0 +1,103 @@
+---
+title: "NonCodeValue"
+excerpt: ""
+layout: manual
+---
+
+
+
+
+
+
+**This schema accepts exactly one of the following:**
+
+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 |
+|----------|------|-------------|----------|
+| `type` |enum: `shebang`|  | No |
+| `value` |`string`|  | No |
+
+
+----
+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

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

docs/kcl/types/Parameter.md

@@ -0,0 +1,23 @@
+---
+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

@@ -0,0 +1,25 @@
+---
+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 |
+|----------|------|-------------|----------|
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `body` |`[` [`BodyItem`](/docs/kcl/types/BodyItem) `]`|  | No |
+| `nonCodeMeta` |[`NonCodeMeta`](/docs/kcl/types/NonCodeMeta)| A KCL program top level, or function body. | 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/ProgramMemory.md

@@ -0,0 +1,22 @@
+---
+title: "ProgramMemory"
+excerpt: ""
+layout: manual
+---
+
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `environments` |`[` [`Environment`](/docs/kcl/types/Environment) `]`|  | No |
+| `currentEnv` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `return` |[`KclValue`](/docs/kcl/types/KclValue)|  | No |
+
+

docs/kcl/types/UnaryOperator.md

@@ -0,0 +1,41 @@
+---
+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

@@ -0,0 +1,24 @@
+---
+title: "VariableDeclarator"
+excerpt: ""
+layout: manual
+---
+
+
+**Type:** `object`
+
+
+
+
+
+## Properties
+
+| Property | Type | Description | Required |
+|----------|------|-------------|----------|
+| `start` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `end` |[`EnvironmentRef`](/docs/kcl/types/EnvironmentRef)|  | No |
+| `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 |
+
+

docs/kcl/types/VariableKind.md

@@ -0,0 +1,65 @@
+---
+title: "VariableKind"
+excerpt: ""
+layout: manual
+---
+
+
+
+
+
+
+**This schema accepts exactly one of the following:**
+
+Declare a variable.
+
+**enum:** `let`
+
+
+
+
+
+
+
+
+----
+Declare a variable that is read-only.
+
+**enum:** `const`
+
+
+
+
+
+
+
+
+----
+Declare a function.
+
+**enum:** `fn`
+
+
+
+
+
+
+
+
+----
+Declare a variable.
+
+**enum:** `var`
+
+
+
+
+
+
+
+
+----
+
+
+
+

e2e/playwright/desktop-export.spec.ts

@@ -155,15 +155,16 @@ test(
       // Find the toast.
       // Look out for the toast message
       await expect(exportingToastMessage).toBeVisible()
-      await expect(alreadyExportingToastMessage).not.toBeVisible()
-
-      // Expect it to succeed.
-      await expect(errorToastMessage).not.toBeVisible()
-      await expect(engineErrorToastMessage).not.toBeVisible()
 
       const successToastMessage = page.getByText(`Exported successfully`)
-      await expect(successToastMessage).toBeVisible()
-      await expect(exportingToastMessage).not.toBeVisible()
+      await test.step('Check the success toast message shows and nothing else', async () =>
+        Promise.all([
+          expect(alreadyExportingToastMessage).not.toBeVisible(),
+          expect(errorToastMessage).not.toBeVisible(),
+          expect(engineErrorToastMessage).not.toBeVisible(),
+          expect(successToastMessage).toBeVisible(),
+          expect(exportingToastMessage).not.toBeVisible(),
+        ]))
 
       await test.step('Check the export size', async () => {
         await expect

e2e/playwright/file-tree.spec.ts

@@ -1,4 +1,5 @@
-import { test, expect } from '@playwright/test'
+import { _test, _expect } from './playwright-deprecated'
+import { test, expect } from './fixtures/fixtureSetup'
 import * as fsp from 'fs/promises'
 import * as fs from 'fs'
 import {
@@ -11,14 +12,98 @@ import {
 import { join } from 'path'
 import { FILE_EXT } from 'lib/constants'
 
-test.beforeEach(async ({ context, page }, testInfo) => {
+_test.beforeEach(async ({ context, page }, testInfo) => {
   await setup(context, page, testInfo)
 })
 
-test.afterEach(async ({ page }, testInfo) => {
+_test.afterEach(async ({ page }, testInfo) => {
   await tearDown(page, testInfo)
 })
 
+test.describe('integrations tests', () => {
+  test(
+    'Creating a new file or switching file while in sketchMode should exit sketchMode',
+    { tag: '@electron' },
+    async ({ tronApp, homePage, scene, editor, toolbar }) => {
+      test.skip(
+        process.platform === 'win32',
+        'windows times out will waiting for the execution indicator?'
+      )
+      await tronApp.initialise({
+        fixtures: { homePage, scene, editor, toolbar },
+        folderSetupFn: async (dir) => {
+          const bracketDir = join(dir, 'test-sample')
+          await fsp.mkdir(bracketDir, { recursive: true })
+          await fsp.copyFile(
+            executorInputPath('e2e-can-sketch-on-chamfer.kcl'),
+            join(bracketDir, 'main.kcl')
+          )
+        },
+      })
+      const [clickObj] = await scene.makeMouseHelpers(600, 300)
+
+      await test.step('setup test', async () => {
+        await homePage.expectState({
+          projectCards: [
+            {
+              title: 'test-sample',
+              fileCount: 1,
+              folderCount: 1,
+            },
+          ],
+          sortBy: 'last-modified-desc',
+        })
+        await homePage.openProject('test-sample')
+        // windows times out here, hence the skip above
+        await scene.waitForExecutionDone()
+      })
+      await test.step('enter sketch mode', async () => {
+        await clickObj()
+        await scene.moveNoWhere()
+        await editor.expectState({
+          activeLines: [
+            '|>startProfileAt([75.8,317.2],%)//[$startCapTag,$EndCapTag]',
+          ],
+          highlightedCode: '',
+          diagnostics: [],
+        })
+        await toolbar.editSketch()
+        await expect(toolbar.exitSketchBtn).toBeVisible()
+      })
+      await test.step('check sketch mode is exited when creating new file', async () => {
+        await toolbar.fileTreeBtn.click()
+        await toolbar.expectFileTreeState(['main.kcl'])
+        await toolbar.createFile({ wait: true })
+
+        // check we're out of sketch mode
+        await expect(toolbar.exitSketchBtn).not.toBeVisible()
+        await expect(toolbar.startSketchBtn).toBeVisible()
+      })
+      await test.step('setup for next assertion', async () => {
+        await toolbar.openFile('main.kcl')
+        await clickObj()
+        await scene.moveNoWhere()
+        await editor.expectState({
+          activeLines: [
+            '|>startProfileAt([75.8,317.2],%)//[$startCapTag,$EndCapTag]',
+          ],
+          highlightedCode: '',
+          diagnostics: [],
+        })
+        await toolbar.editSketch()
+        await expect(toolbar.exitSketchBtn).toBeVisible()
+        await toolbar.expectFileTreeState(['main.kcl', 'Untitled.kcl'])
+      })
+      await test.step('check sketch mode is exited when opening a different file', async () => {
+        await toolbar.openFile('untitled.kcl', { wait: false })
+
+        // check we're out of sketch mode
+        await expect(toolbar.exitSketchBtn).not.toBeVisible()
+        await expect(toolbar.startSketchBtn).toBeVisible()
+      })
+    }
+  )
+})
 test.describe('when using the file tree to', () => {
   const fromFile = 'main.kcl'
   const toFile = 'hello.kcl'
@@ -26,11 +111,8 @@ test.describe('when using the file tree to', () => {
   test(
     `rename ${fromFile} to ${toFile}, and doesn't crash on reload and settings load`,
     { tag: '@electron' },
-    async ({ browser: _ }, testInfo) => {
-      const { electronApp, page } = await setupElectron({
-        testInfo,
-        folderSetupFn: async () => {},
-      })
+    async ({ browser: _, tronApp }, testInfo) => {
+      await tronApp.initialise()
 
       const {
         panesOpen,
@@ -38,10 +120,10 @@ test.describe('when using the file tree to', () => {
         pasteCodeInEditor,
         renameFile,
         editorTextMatches,
-      } = await getUtils(page, test)
+      } = await getUtils(tronApp.page, test)
 
-      await page.setViewportSize({ width: 1200, height: 500 })
-      page.on('console', console.log)
+      await tronApp.page.setViewportSize({ width: 1200, height: 500 })
+      tronApp.page.on('console', console.log)
 
       await panesOpen(['files', 'code'])
 
@@ -55,39 +137,38 @@ test.describe('when using the file tree to', () => {
       await pasteCodeInEditor(kclCube)
 
       await renameFile(fromFile, toFile)
-      await page.reload()
+      await tronApp.page.reload()
 
       await test.step('Postcondition: editor has same content as before the rename', async () => {
         await editorTextMatches(kclCube)
       })
 
       await test.step('Postcondition: opening and closing settings works', async () => {
-        const settingsOpenButton = page.getByRole('link', {
+        const settingsOpenButton = tronApp.page.getByRole('link', {
           name: 'settings Settings',
         })
-        const settingsCloseButton = page.getByTestId('settings-close-button')
+        const settingsCloseButton = tronApp.page.getByTestId(
+          'settings-close-button'
+        )
         await settingsOpenButton.click()
         await settingsCloseButton.click()
       })
 
-      await electronApp.close()
+      await tronApp.close()
     }
   )
 
   test(
     `create many new untitled files they increment their names`,
     { tag: '@electron' },
-    async ({ browser: _ }, testInfo) => {
-      const { electronApp, page } = await setupElectron({
-        testInfo,
-        folderSetupFn: async () => {},
-      })
+    async ({ browser: _, tronApp }, testInfo) => {
+      await tronApp.initialise()
 
       const { panesOpen, createAndSelectProject, createNewFile } =
-        await getUtils(page, test)
+        await getUtils(tronApp.page, test)
 
-      await page.setViewportSize({ width: 1200, height: 500 })
-      page.on('console', console.log)
+      await tronApp.page.setViewportSize({ width: 1200, height: 500 })
+      tronApp.page.on('console', console.log)
 
       await panesOpen(['files'])
 
@@ -101,23 +182,21 @@ test.describe('when using the file tree to', () => {
 
       await test.step('Postcondition: there are 5 new Untitled-*.kcl files', async () => {
         await expect(
-          page
+          tronApp.page
             .locator('[data-testid="file-pane-scroll-container"] button')
             .filter({ hasText: /Untitled[-]?[0-5]?/ })
         ).toHaveCount(5)
       })
 
-      await electronApp.close()
+      await tronApp.close()
     }
   )
 
   test(
     'create a new file with the same name as an existing file cancels the operation',
     { tag: '@electron' },
-    async ({ browser: _ }, testInfo) => {
-      const { electronApp, page } = await setupElectron({
-        testInfo,
-      })
+    async ({ browser: _, tronApp }, testInfo) => {
+      await tronApp.initialise()
 
       const {
         openKclCodePanel,
@@ -128,10 +207,10 @@ test.describe('when using the file tree to', () => {
         renameFile,
         selectFile,
         editorTextMatches,
-      } = await getUtils(page, test)
+      } = await getUtils(tronApp.page, _test)
 
-      await page.setViewportSize({ width: 1200, height: 500 })
-      page.on('console', console.log)
+      await tronApp.page.setViewportSize({ width: 1200, height: 500 })
+      tronApp.page.on('console', console.log)
 
       await createAndSelectProject('project-000')
       await openKclCodePanel()
@@ -159,25 +238,22 @@ test.describe('when using the file tree to', () => {
         await selectFile(kcl1)
         await editorTextMatches(kclCube)
       })
-      await page.waitForTimeout(500)
+      await tronApp.page.waitForTimeout(500)
 
       await test.step(`Postcondition: ${kcl2} still exists with the original content`, async () => {
         await selectFile(kcl2)
         await editorTextMatches(kclCylinder)
       })
 
-      await electronApp.close()
+      await tronApp?.close?.()
     }
   )
 
   test(
     'deleting all files recreates a default main.kcl with no code',
     { tag: '@electron' },
-    async ({ browser: _ }, testInfo) => {
-      const { electronApp, page } = await setupElectron({
-        testInfo,
-        folderSetupFn: async () => {},
-      })
+    async ({ browser: _, tronApp }, testInfo) => {
+      await tronApp.initialise()
 
       const {
         panesOpen,
@@ -185,10 +261,10 @@ test.describe('when using the file tree to', () => {
         pasteCodeInEditor,
         deleteFile,
         editorTextMatches,
-      } = await getUtils(page, test)
+      } = await getUtils(tronApp.page, _test)
 
-      await page.setViewportSize({ width: 1200, height: 500 })
-      page.on('console', console.log)
+      await tronApp.page.setViewportSize({ width: 1200, height: 500 })
+      tronApp.page.on('console', console.log)
 
       await panesOpen(['files', 'code'])
 
@@ -208,7 +284,7 @@ test.describe('when using the file tree to', () => {
         await editorTextMatches('')
       })
 
-      await electronApp.close()
+      await tronApp.close()
     }
   )
 
@@ -217,10 +293,8 @@ test.describe('when using the file tree to', () => {
     {
       tag: '@electron',
     },
-    async ({ browser: _ }, testInfo) => {
-      const { page } = await setupElectron({
-        testInfo,
-      })
+    async ({ browser: _, tronApp }, testInfo) => {
+      await tronApp.initialise()
 
       const {
         panesOpen,
@@ -230,10 +304,10 @@ test.describe('when using the file tree to', () => {
         openDebugPanel,
         closeDebugPanel,
         expectCmdLog,
-      } = await getUtils(page, test)
+      } = await getUtils(tronApp.page, test)
 
-      await page.setViewportSize({ width: 1200, height: 500 })
-      page.on('console', console.log)
+      await tronApp.page.setViewportSize({ width: 1200, height: 500 })
+      tronApp.page.on('console', console.log)
 
       await panesOpen(['files', 'code'])
       await createAndSelectProject('project-000')
@@ -248,30 +322,30 @@ test.describe('when using the file tree to', () => {
 
       // Create a large lego file
       await createNewFile('lego')
-      const legoFile = page.getByRole('listitem').filter({
-        has: page.getByRole('button', { name: 'lego.kcl' }),
+      const legoFile = tronApp.page.getByRole('listitem').filter({
+        has: tronApp.page.getByRole('button', { name: 'lego.kcl' }),
       })
-      await expect(legoFile).toBeVisible({ timeout: 60_000 })
+      await _expect(legoFile).toBeVisible({ timeout: 60_000 })
       await legoFile.click()
       const kclLego = await fsp.readFile(
         'src/wasm-lib/tests/executor/inputs/lego.kcl',
         'utf-8'
       )
       await pasteCodeInEditor(kclLego)
-      const mainFile = page.getByRole('listitem').filter({
-        has: page.getByRole('button', { name: 'main.kcl' }),
+      const mainFile = tronApp.page.getByRole('listitem').filter({
+        has: tronApp.page.getByRole('button', { name: 'main.kcl' }),
       })
 
       // Open settings and enable the debug panel
-      await page
+      await tronApp.page
         .getByRole('link', {
           name: 'settings Settings',
         })
         .click()
-      await page.locator('#showDebugPanel').getByText('OffOn').click()
-      await page.getByTestId('settings-close-button').click()
+      await tronApp.page.locator('#showDebugPanel').getByText('OffOn').click()
+      await tronApp.page.getByTestId('settings-close-button').click()
 
-      await test.step('swap between small and large files', async () => {
+      await _test.step('swap between small and large files', async () => {
         await openDebugPanel()
         // Previously created a file so we need to start back at main.kcl
         await mainFile.click()
@@ -283,12 +357,14 @@ test.describe('when using the file tree to', () => {
         await expectCmdLog('[data-message-type="execution-done"]', 60_000)
         await closeDebugPanel()
       })
+
+      await tronApp.close()
     }
   )
 })
 
-test.describe('Renaming in the file tree', () => {
-  test(
+_test.describe('Renaming in the file tree', () => {
+  _test(
     'A file you have open',
     { tag: '@electron' },
     async ({ browser: _ }, testInfo) => {
@@ -333,56 +409,56 @@ test.describe('Renaming in the file tree', () => {
       const renameInput = page.getByPlaceholder('fileToRename.kcl')
       const codeLocator = page.locator('.cm-content')
 
-      await test.step('Open project and file pane', async () => {
-        await expect(projectLink).toBeVisible()
+      await _test.step('Open project and file pane', async () => {
+        await _expect(projectLink).toBeVisible()
         await projectLink.click()
-        await expect(projectMenuButton).toBeVisible()
-        await expect(projectMenuButton).toContainText('main.kcl')
+        await _expect(projectMenuButton).toBeVisible()
+        await _expect(projectMenuButton).toContainText('main.kcl')
 
         await u.openFilePanel()
-        await expect(fileToRename).toBeVisible()
-        expect(checkUnRenamedFS()).toBeTruthy()
-        expect(checkRenamedFS()).toBeFalsy()
+        await _expect(fileToRename).toBeVisible()
+        _expect(checkUnRenamedFS()).toBeTruthy()
+        _expect(checkRenamedFS()).toBeFalsy()
         await fileToRename.click()
-        await expect(projectMenuButton).toContainText('fileToRename.kcl')
+        await _expect(projectMenuButton).toContainText('fileToRename.kcl')
         await u.openKclCodePanel()
-        await expect(codeLocator).toContainText('circle(')
+        await _expect(codeLocator).toContainText('circle(')
         await u.closeKclCodePanel()
       })
 
-      await test.step('Rename the file', async () => {
+      await _test.step('Rename the file', async () => {
         await fileToRename.click({ button: 'right' })
         await renameMenuItem.click()
-        await expect(renameInput).toBeVisible()
+        await _expect(renameInput).toBeVisible()
         await renameInput.fill(newFileName)
         await page.keyboard.press('Enter')
       })
 
-      await test.step('Verify the file is renamed', async () => {
-        await expect(fileToRename).not.toBeAttached()
-        await expect(renamedFile).toBeVisible()
-        expect(checkUnRenamedFS()).toBeFalsy()
-        expect(checkRenamedFS()).toBeTruthy()
+      await _test.step('Verify the file is renamed', async () => {
+        await _expect(fileToRename).not.toBeAttached()
+        await _expect(renamedFile).toBeVisible()
+        _expect(checkUnRenamedFS()).toBeFalsy()
+        _expect(checkRenamedFS()).toBeTruthy()
       })
 
-      await test.step('Verify we navigated', async () => {
-        await expect(projectMenuButton).toContainText(newFileName + FILE_EXT)
+      await _test.step('Verify we navigated', async () => {
+        await _expect(projectMenuButton).toContainText(newFileName + FILE_EXT)
         const url = page.url()
-        expect(url).toContain(newFileName)
-        await expect(projectMenuButton).not.toContainText('fileToRename.kcl')
-        await expect(projectMenuButton).not.toContainText('main.kcl')
-        expect(url).not.toContain('fileToRename.kcl')
-        expect(url).not.toContain('main.kcl')
+        _expect(url).toContain(newFileName)
+        await _expect(projectMenuButton).not.toContainText('fileToRename.kcl')
+        await _expect(projectMenuButton).not.toContainText('main.kcl')
+        _expect(url).not.toContain('fileToRename.kcl')
+        _expect(url).not.toContain('main.kcl')
 
         await u.openKclCodePanel()
-        await expect(codeLocator).toContainText('circle(')
+        await _expect(codeLocator).toContainText('circle(')
       })
 
       await electronApp.close()
     }
   )
 
-  test(
+  _test(
     'A file you do not have open',
     { tag: '@electron' },
     async ({ browser: _ }, testInfo) => {
@@ -426,54 +502,54 @@ test.describe('Renaming in the file tree', () => {
       const renameInput = page.getByPlaceholder('fileToRename.kcl')
       const codeLocator = page.locator('.cm-content')
 
-      await test.step('Open project and file pane', async () => {
-        await expect(projectLink).toBeVisible()
+      await _test.step('Open project and file pane', async () => {
+        await _expect(projectLink).toBeVisible()
         await projectLink.click()
-        await expect(projectMenuButton).toBeVisible()
-        await expect(projectMenuButton).toContainText('main.kcl')
+        await _expect(projectMenuButton).toBeVisible()
+        await _expect(projectMenuButton).toContainText('main.kcl')
 
         await u.openFilePanel()
-        await expect(fileToRename).toBeVisible()
-        expect(checkUnRenamedFS()).toBeTruthy()
-        expect(checkRenamedFS()).toBeFalsy()
+        await _expect(fileToRename).toBeVisible()
+        _expect(checkUnRenamedFS()).toBeTruthy()
+        _expect(checkRenamedFS()).toBeFalsy()
       })
 
-      await test.step('Rename the file', async () => {
+      await _test.step('Rename the file', async () => {
         await fileToRename.click({ button: 'right' })
         await renameMenuItem.click()
-        await expect(renameInput).toBeVisible()
+        await _expect(renameInput).toBeVisible()
         await renameInput.fill(newFileName)
         await page.keyboard.press('Enter')
       })
 
-      await test.step('Verify the file is renamed', async () => {
-        await expect(fileToRename).not.toBeAttached()
-        await expect(renamedFile).toBeVisible()
-        expect(checkUnRenamedFS()).toBeFalsy()
-        expect(checkRenamedFS()).toBeTruthy()
+      await _test.step('Verify the file is renamed', async () => {
+        await _expect(fileToRename).not.toBeAttached()
+        await _expect(renamedFile).toBeVisible()
+        _expect(checkUnRenamedFS()).toBeFalsy()
+        _expect(checkRenamedFS()).toBeTruthy()
       })
 
-      await test.step('Verify we have not navigated', async () => {
-        await expect(projectMenuButton).toContainText('main.kcl')
-        await expect(projectMenuButton).not.toContainText(
+      await _test.step('Verify we have not navigated', async () => {
+        await _expect(projectMenuButton).toContainText('main.kcl')
+        await _expect(projectMenuButton).not.toContainText(
           newFileName + FILE_EXT
         )
-        await expect(projectMenuButton).not.toContainText('fileToRename.kcl')
+        await _expect(projectMenuButton).not.toContainText('fileToRename.kcl')
 
         const url = page.url()
-        expect(url).toContain('main.kcl')
-        expect(url).not.toContain(newFileName)
-        expect(url).not.toContain('fileToRename.kcl')
+        _expect(url).toContain('main.kcl')
+        _expect(url).not.toContain(newFileName)
+        _expect(url).not.toContain('fileToRename.kcl')
 
         await u.openKclCodePanel()
-        await expect(codeLocator).toContainText('fillet(')
+        await _expect(codeLocator).toContainText('fillet(')
       })
 
       await electronApp.close()
     }
   )
 
-  test(
+  _test(
     `A folder you're not inside`,
     { tag: '@electron' },
     async ({ browser: _ }, testInfo) => {
@@ -519,48 +595,51 @@ test.describe('Renaming in the file tree', () => {
         return fs.existsSync(folderPath)
       }
 
-      await test.step('Open project and file pane', async () => {
-        await expect(projectLink).toBeVisible()
+      await _test.step('Open project and file pane', async () => {
+        await _expect(projectLink).toBeVisible()
         await projectLink.click()
-        await expect(projectMenuButton).toBeVisible()
-        await expect(projectMenuButton).toContainText('main.kcl')
+        await _expect(projectMenuButton).toBeVisible()
+        await _expect(projectMenuButton).toContainText('main.kcl')
 
         const url = page.url()
-        expect(url).toContain('main.kcl')
-        expect(url).not.toContain('folderToRename')
+        _expect(url).toContain('main.kcl')
+        _expect(url).not.toContain('folderToRename')
 
         await u.openFilePanel()
-        await expect(folderToRename).toBeVisible()
-        expect(checkUnRenamedFolderFS()).toBeTruthy()
-        expect(checkRenamedFolderFS()).toBeFalsy()
+        await _expect(folderToRename).toBeVisible()
+        _expect(checkUnRenamedFolderFS()).toBeTruthy()
+        _expect(checkRenamedFolderFS()).toBeFalsy()
       })
 
-      await test.step('Rename the folder', async () => {
+      await _test.step('Rename the folder', async () => {
         await folderToRename.click({ button: 'right' })
-        await expect(renameMenuItem).toBeVisible()
+        await _expect(renameMenuItem).toBeVisible()
         await renameMenuItem.click()
-        await expect(renameInput).toBeVisible()
+        await _expect(renameInput).toBeVisible()
         await renameInput.fill(newFolderName)
         await page.keyboard.press('Enter')
       })
 
-      await test.step('Verify the folder is renamed, and no navigation occurred', async () => {
-        const url = page.url()
-        expect(url).toContain('main.kcl')
-        expect(url).not.toContain('folderToRename')
+      await _test.step(
+        'Verify the folder is renamed, and no navigation occurred',
+        async () => {
+          const url = page.url()
+          _expect(url).toContain('main.kcl')
+          _expect(url).not.toContain('folderToRename')
 
-        await expect(projectMenuButton).toContainText('main.kcl')
-        await expect(renamedFolder).toBeVisible()
-        await expect(folderToRename).not.toBeAttached()
-        expect(checkUnRenamedFolderFS()).toBeFalsy()
-        expect(checkRenamedFolderFS()).toBeTruthy()
-      })
+          await _expect(projectMenuButton).toContainText('main.kcl')
+          await _expect(renamedFolder).toBeVisible()
+          await _expect(folderToRename).not.toBeAttached()
+          _expect(checkUnRenamedFolderFS()).toBeFalsy()
+          _expect(checkRenamedFolderFS()).toBeTruthy()
+        }
+      )
 
       await electronApp.close()
     }
   )
 
-  test(
+  _test(
     `A folder you are inside`,
     { tag: '@electron' },
     async ({ browser: _ }, testInfo) => {
@@ -609,66 +688,69 @@ test.describe('Renaming in the file tree', () => {
         return fs.existsSync(folderPath)
       }
 
-      await test.step('Open project and navigate into folder', async () => {
-        await expect(projectLink).toBeVisible()
+      await _test.step('Open project and navigate into folder', async () => {
+        await _expect(projectLink).toBeVisible()
         await projectLink.click()
-        await expect(projectMenuButton).toBeVisible()
-        await expect(projectMenuButton).toContainText('main.kcl')
+        await _expect(projectMenuButton).toBeVisible()
+        await _expect(projectMenuButton).toContainText('main.kcl')
 
         const url = page.url()
-        expect(url).toContain('main.kcl')
-        expect(url).not.toContain('folderToRename')
+        _expect(url).toContain('main.kcl')
+        _expect(url).not.toContain('folderToRename')
 
         await u.openFilePanel()
-        await expect(folderToRename).toBeVisible()
+        await _expect(folderToRename).toBeVisible()
         await folderToRename.click()
-        await expect(fileWithinFolder).toBeVisible()
+        await _expect(fileWithinFolder).toBeVisible()
         await fileWithinFolder.click()
 
-        await expect(projectMenuButton).toContainText('someFileWithin.kcl')
+        await _expect(projectMenuButton).toContainText('someFileWithin.kcl')
         const newUrl = page.url()
-        expect(newUrl).toContain('folderToRename')
-        expect(newUrl).toContain('someFileWithin.kcl')
-        expect(newUrl).not.toContain('main.kcl')
-        expect(checkUnRenamedFolderFS()).toBeTruthy()
-        expect(checkRenamedFolderFS()).toBeFalsy()
+        _expect(newUrl).toContain('folderToRename')
+        _expect(newUrl).toContain('someFileWithin.kcl')
+        _expect(newUrl).not.toContain('main.kcl')
+        _expect(checkUnRenamedFolderFS()).toBeTruthy()
+        _expect(checkRenamedFolderFS()).toBeFalsy()
       })
 
-      await test.step('Rename the folder', async () => {
+      await _test.step('Rename the folder', async () => {
         await page.waitForTimeout(60000)
         await folderToRename.click({ button: 'right' })
-        await expect(renameMenuItem).toBeVisible()
+        await _expect(renameMenuItem).toBeVisible()
         await renameMenuItem.click()
-        await expect(renameInput).toBeVisible()
+        await _expect(renameInput).toBeVisible()
         await renameInput.fill(newFolderName)
         await page.keyboard.press('Enter')
       })
 
-      await test.step('Verify the folder is renamed, and navigated to new path', async () => {
-        const urlSnippet = encodeURIComponent(
-          join(newFolderName, 'someFileWithin.kcl')
-        )
-        await page.waitForURL(new RegExp(urlSnippet))
-        await expect(projectMenuButton).toContainText('someFileWithin.kcl')
-        await expect(renamedFolder).toBeVisible()
-        await expect(folderToRename).not.toBeAttached()
+      await _test.step(
+        'Verify the folder is renamed, and navigated to new path',
+        async () => {
+          const urlSnippet = encodeURIComponent(
+            join(newFolderName, 'someFileWithin.kcl')
+          )
+          await page.waitForURL(new RegExp(urlSnippet))
+          await _expect(projectMenuButton).toContainText('someFileWithin.kcl')
+          await _expect(renamedFolder).toBeVisible()
+          await _expect(folderToRename).not.toBeAttached()
 
-        // URL is synchronous, so we check the other stuff first
-        const url = page.url()
-        expect(url).not.toContain('main.kcl')
-        expect(url).toContain(newFolderName)
-        expect(url).toContain('someFileWithin.kcl')
-        expect(checkUnRenamedFolderFS()).toBeFalsy()
-        expect(checkRenamedFolderFS()).toBeTruthy()
-      })
+          // URL is synchronous, so we check the other stuff first
+          const url = page.url()
+          _expect(url).not.toContain('main.kcl')
+          _expect(url).toContain(newFolderName)
+          _expect(url).toContain('someFileWithin.kcl')
+          _expect(checkUnRenamedFolderFS()).toBeFalsy()
+          _expect(checkRenamedFolderFS()).toBeTruthy()
+        }
+      )
 
       await electronApp.close()
     }
   )
 })
 
-test.describe('Deleting items from the file pane', () => {
-  test(
+_test.describe('Deleting items from the file pane', () => {
+  _test(
     `delete file when main.kcl exists, navigate to main.kcl`,
     { tag: '@electron' },
     async ({ browserName }, testInfo) => {
@@ -700,45 +782,48 @@ test.describe('Deleting items from the file pane', () => {
       const deleteMenuItem = page.getByRole('button', { name: 'Delete' })
       const deleteConfirmation = page.getByTestId('delete-confirmation')
 
-      await test.step('Open project and navigate to fileToDelete.kcl', async () => {
-        await projectCard.click()
-        await u.waitForPageLoad()
-        await u.openFilePanel()
+      await _test.step(
+        'Open project and navigate to fileToDelete.kcl',
+        async () => {
+          await projectCard.click()
+          await u.waitForPageLoad()
+          await u.openFilePanel()
 
-        await fileToDelete.click()
-        await u.waitForPageLoad()
-        await u.openKclCodePanel()
-        await expect(u.codeLocator).toContainText('getOppositeEdge(thing)')
-        await u.closeKclCodePanel()
-      })
+          await fileToDelete.click()
+          await u.waitForPageLoad()
+          await u.openKclCodePanel()
+          await _expect(u.codeLocator).toContainText('getOppositeEdge(thing)')
+          await u.closeKclCodePanel()
+        }
+      )
 
-      await test.step('Delete fileToDelete.kcl', async () => {
+      await _test.step('Delete fileToDelete.kcl', async () => {
         await fileToDelete.click({ button: 'right' })
-        await expect(deleteMenuItem).toBeVisible()
+        await _expect(deleteMenuItem).toBeVisible()
         await deleteMenuItem.click()
-        await expect(deleteConfirmation).toBeVisible()
+        await _expect(deleteConfirmation).toBeVisible()
         await deleteConfirmation.click()
       })
 
-      await test.step('Check deletion and navigation', async () => {
+      await _test.step('Check deletion and navigation', async () => {
         await u.waitForPageLoad()
-        await expect(fileToDelete).not.toBeVisible()
+        await _expect(fileToDelete).not.toBeVisible()
         await u.closeFilePanel()
         await u.openKclCodePanel()
-        await expect(u.codeLocator).toContainText('circle(')
-        await expect(projectMenuButton).toContainText('main.kcl')
+        await _expect(u.codeLocator).toContainText('circle(')
+        await _expect(projectMenuButton).toContainText('main.kcl')
       })
 
       await electronApp.close()
     }
   )
 
-  test.fixme(
+  _test.fixme(
     'TODO - delete file we have open when main.kcl does not exist',
     async () => {}
   )
 
-  test(
+  _test(
     `Delete folder we are not in, don't navigate`,
     { tag: '@electron' },
     async ({ browserName }, testInfo) => {
@@ -772,32 +857,32 @@ test.describe('Deleting items from the file pane', () => {
       const deleteMenuItem = page.getByRole('button', { name: 'Delete' })
       const deleteConfirmation = page.getByTestId('delete-confirmation')
 
-      await test.step('Open project and open project pane', async () => {
+      await _test.step('Open project and open project pane', async () => {
         await projectCard.click()
         await u.waitForPageLoad()
-        await expect(projectMenuButton).toContainText('main.kcl')
+        await _expect(projectMenuButton).toContainText('main.kcl')
         await u.closeKclCodePanel()
         await u.openFilePanel()
       })
 
-      await test.step('Delete folderToDelete', async () => {
+      await _test.step('Delete folderToDelete', async () => {
         await folderToDelete.click({ button: 'right' })
-        await expect(deleteMenuItem).toBeVisible()
+        await _expect(deleteMenuItem).toBeVisible()
         await deleteMenuItem.click()
-        await expect(deleteConfirmation).toBeVisible()
+        await _expect(deleteConfirmation).toBeVisible()
         await deleteConfirmation.click()
       })
 
-      await test.step('Check deletion and no navigation', async () => {
-        await expect(folderToDelete).not.toBeAttached()
-        await expect(projectMenuButton).toContainText('main.kcl')
+      await _test.step('Check deletion and no navigation', async () => {
+        await _expect(folderToDelete).not.toBeAttached()
+        await _expect(projectMenuButton).toContainText('main.kcl')
       })
 
       await electronApp.close()
     }
   )
 
-  test(
+  _test(
     `Delete folder we are in, navigate to main.kcl`,
     { tag: '@electron' },
     async ({ browserName }, testInfo) => {
@@ -834,36 +919,45 @@ test.describe('Deleting items from the file pane', () => {
       const deleteMenuItem = page.getByRole('button', { name: 'Delete' })
       const deleteConfirmation = page.getByTestId('delete-confirmation')
 
-      await test.step('Open project and navigate into folderToDelete', async () => {
-        await projectCard.click()
-        await u.waitForPageLoad()
-        await expect(projectMenuButton).toContainText('main.kcl')
-        await u.closeKclCodePanel()
-        await u.openFilePanel()
+      await _test.step(
+        'Open project and navigate into folderToDelete',
+        async () => {
+          await projectCard.click()
+          await u.waitForPageLoad()
+          await _expect(projectMenuButton).toContainText('main.kcl')
+          await u.closeKclCodePanel()
+          await u.openFilePanel()
 
-        await folderToDelete.click()
-        await expect(fileWithinFolder).toBeVisible()
-        await fileWithinFolder.click()
-        await expect(projectMenuButton).toContainText('someFileWithin.kcl')
-      })
+          await folderToDelete.click()
+          await _expect(fileWithinFolder).toBeVisible()
+          await fileWithinFolder.click()
+          await _expect(projectMenuButton).toContainText('someFileWithin.kcl')
+        }
+      )
 
-      await test.step('Delete folderToDelete', async () => {
+      await _test.step('Delete folderToDelete', async () => {
         await folderToDelete.click({ button: 'right' })
-        await expect(deleteMenuItem).toBeVisible()
+        await _expect(deleteMenuItem).toBeVisible()
         await deleteMenuItem.click()
-        await expect(deleteConfirmation).toBeVisible()
+        await _expect(deleteConfirmation).toBeVisible()
         await deleteConfirmation.click()
       })
 
-      await test.step('Check deletion and navigation to main.kcl', async () => {
-        await expect(folderToDelete).not.toBeAttached()
-        await expect(fileWithinFolder).not.toBeAttached()
-        await expect(projectMenuButton).toContainText('main.kcl')
-      })
+      await _test.step(
+        'Check deletion and navigation to main.kcl',
+        async () => {
+          await _expect(folderToDelete).not.toBeAttached()
+          await _expect(fileWithinFolder).not.toBeAttached()
+          await _expect(projectMenuButton).toContainText('main.kcl')
+        }
+      )
 
       await electronApp.close()
     }
   )
 
-  test.fixme('TODO - delete folder we are in, with no main.kcl', async () => {})
+  _test.fixme(
+    'TODO - delete folder we are in, with no main.kcl',
+    async () => {}
+  )
 })

e2e/playwright/fixtureSetup.ts

@@ -1,70 +0,0 @@
-import type { Page } from '@playwright/test'
-import { test as base } from '@playwright/test'
-import { getUtils, setup, tearDown } from './test-utils'
-import fsp from 'fs/promises'
-import { join } from 'path'
-import { CmdBarFixture } from './cmdBarFixture'
-import { EditorFixture } from './editorFixture'
-import { ToolbarFixture } from './toolbarFixture'
-import { SceneFixture } from './sceneFixture'
-
-export class AuthenticatedApp {
-  public readonly page: Page
-
-  constructor(page: Page) {
-    this.page = page
-  }
-
-  async initialise(code = '') {
-    const u = await getUtils(this.page)
-
-    await this.page.addInitScript(async (code) => {
-      localStorage.setItem('persistCode', code)
-      ;(window as any).playwrightSkipFilePicker = true
-    }, code)
-
-    await this.page.setViewportSize({ width: 1000, height: 500 })
-
-    await u.waitForAuthSkipAppStart()
-  }
-  getInputFile = (fileName: string) => {
-    return fsp.readFile(
-      join('src', 'wasm-lib', 'tests', 'executor', 'inputs', fileName),
-      'utf-8'
-    )
-  }
-}
-
-export const test = base.extend<{
-  app: AuthenticatedApp
-  cmdBar: CmdBarFixture
-  editor: EditorFixture
-  toolbar: ToolbarFixture
-  scene: SceneFixture
-}>({
-  app: async ({ page }, use) => {
-    await use(new AuthenticatedApp(page))
-  },
-  cmdBar: async ({ page }, use) => {
-    await use(new CmdBarFixture(page))
-  },
-  editor: async ({ page }, use) => {
-    await use(new EditorFixture(page))
-  },
-  toolbar: async ({ page }, use) => {
-    await use(new ToolbarFixture(page))
-  },
-  scene: async ({ page }, use) => {
-    await use(new SceneFixture(page))
-  },
-})
-
-test.beforeEach(async ({ context, page }, testInfo) => {
-  await setup(context, page, testInfo)
-})
-
-test.afterEach(async ({ page }, testInfo) => {
-  await tearDown(page, testInfo)
-})
-
-export { expect } from '@playwright/test'

e2e/playwright/fixtures/cmdBarFixture.ts

@@ -25,11 +25,14 @@ type CmdBarSerialised =
     }
 
 export class CmdBarFixture {
-  public readonly page: Page
+  public page: Page
 
   constructor(page: Page) {
     this.page = page
   }
+  reConstruct = (page: Page) => {
+    this.page = page
+  }
 
   private _serialiseCmdBar = async (): Promise<CmdBarSerialised> => {
     const reviewForm = await this.page.locator('#review-form')

e2e/playwright/fixtures/editorFixture.ts

@@ -1,5 +1,6 @@
 import type { Page, Locator } from '@playwright/test'
 import { expect } from '@playwright/test'
+import { sansWhitespace } from '../test-utils'
 
 interface EditorState {
   activeLines: Array<string>
@@ -7,19 +8,20 @@ interface EditorState {
   diagnostics: Array<string>
 }
 
-function removeWhitespace(str: string) {
-  return str.replace(/\s+/g, '').trim()
-}
 export class EditorFixture {
-  public readonly page: Page
+  public page: Page
 
-  private readonly diagnosticsTooltip: Locator
-  private readonly diagnosticsGutterIcon: Locator
-  private readonly codeContent: Locator
-  private readonly activeLine: Locator
+  private diagnosticsTooltip!: Locator
+  private diagnosticsGutterIcon!: Locator
+  private codeContent!: Locator
+  private activeLine!: Locator
 
   constructor(page: Page) {
     this.page = page
+    this.reConstruct(page)
+  }
+  reConstruct = (page: Page) => {
+    this.page = page
 
     this.codeContent = page.locator('.cm-content')
     this.diagnosticsTooltip = page.locator('.cm-tooltip-lint')
@@ -94,16 +96,16 @@ export class EditorFixture {
           this._serialiseDiagnostics(),
         ])
         const state: EditorState = {
-          activeLines: activeLines.map(removeWhitespace).filter(Boolean),
-          highlightedCode: removeWhitespace(highlightedCode),
+          activeLines: activeLines.map(sansWhitespace).filter(Boolean),
+          highlightedCode: sansWhitespace(highlightedCode),
           diagnostics,
         }
         return state
       })
       .toEqual({
-        activeLines: expectedState.activeLines.map(removeWhitespace),
-        highlightedCode: removeWhitespace(expectedState.highlightedCode),
-        diagnostics: expectedState.diagnostics.map(removeWhitespace),
+        activeLines: expectedState.activeLines.map(sansWhitespace),
+        highlightedCode: sansWhitespace(expectedState.highlightedCode),
+        diagnostics: expectedState.diagnostics.map(sansWhitespace),
       })
   }
 }

e2e/playwright/fixtures/fixtureSetup.ts

@@ -0,0 +1,140 @@
+import type {
+  BrowserContext,
+  ElectronApplication,
+  Page,
+  TestInfo,
+} from '@playwright/test'
+import { test as base } from '@playwright/test'
+import { getUtils, setup, setupElectron, tearDown } from '../test-utils'
+import fsp from 'fs/promises'
+import { join } from 'path'
+import { CmdBarFixture } from './cmdBarFixture'
+import { EditorFixture } from './editorFixture'
+import { ToolbarFixture } from './toolbarFixture'
+import { SceneFixture } from './sceneFixture'
+import { SaveSettingsPayload } from 'lib/settings/settingsTypes'
+import { HomePageFixture } from './homePageFixture'
+import { unsafeTypedKeys } from 'lib/utils'
+
+export class AuthenticatedApp {
+  public readonly page: Page
+  public readonly context: BrowserContext
+  public readonly testInfo: TestInfo
+
+  constructor(context: BrowserContext, page: Page, testInfo: TestInfo) {
+    this.page = page
+    this.context = context
+    this.testInfo = testInfo
+  }
+
+  async initialise(code = '') {
+    await setup(this.context, this.page, this.testInfo)
+    const u = await getUtils(this.page)
+
+    await this.page.addInitScript(async (code) => {
+      localStorage.setItem('persistCode', code)
+      ;(window as any).playwrightSkipFilePicker = true
+    }, code)
+
+    await this.page.setViewportSize({ width: 1000, height: 500 })
+
+    await u.waitForAuthSkipAppStart()
+  }
+  getInputFile = (fileName: string) => {
+    return fsp.readFile(
+      join('src', 'wasm-lib', 'tests', 'executor', 'inputs', fileName),
+      'utf-8'
+    )
+  }
+}
+
+interface Fixtures {
+  app: AuthenticatedApp
+  tronApp: AuthenticatedTronApp
+  cmdBar: CmdBarFixture
+  editor: EditorFixture
+  toolbar: ToolbarFixture
+  scene: SceneFixture
+  homePage: HomePageFixture
+}
+export class AuthenticatedTronApp {
+  public readonly _page: Page
+  public page: Page
+  public readonly context: BrowserContext
+  public readonly testInfo: TestInfo
+  public electronApp?: ElectronApplication
+
+  constructor(context: BrowserContext, page: Page, testInfo: TestInfo) {
+    this._page = page
+    this.page = page
+    this.context = context
+    this.testInfo = testInfo
+  }
+  async initialise(
+    arg: {
+      fixtures: Partial<Fixtures>
+      folderSetupFn?: (projectDirName: string) => Promise<void>
+      cleanProjectDir?: boolean
+      appSettings?: Partial<SaveSettingsPayload>
+    } = { fixtures: {} }
+  ) {
+    const { electronApp, page } = await setupElectron({
+      testInfo: this.testInfo,
+      folderSetupFn: arg.folderSetupFn,
+      cleanProjectDir: arg.cleanProjectDir,
+      appSettings: arg.appSettings,
+    })
+    this.page = page
+    this.electronApp = electronApp
+    await page.setViewportSize({ width: 1200, height: 500 })
+
+    for (const key of unsafeTypedKeys(arg.fixtures)) {
+      const fixture = arg.fixtures[key]
+      if (
+        !fixture ||
+        fixture instanceof AuthenticatedApp ||
+        fixture instanceof AuthenticatedTronApp
+      )
+        continue
+      fixture.reConstruct(page)
+    }
+  }
+
+  close = async () => {
+    await this.electronApp?.close?.()
+  }
+  debugPause = () =>
+    new Promise(() => {
+      console.log('UN-RESOLVING PROMISE')
+    })
+}
+
+export const test = base.extend<Fixtures>({
+  app: async ({ page, context }, use, testInfo) => {
+    await use(new AuthenticatedApp(context, page, testInfo))
+  },
+  tronApp: async ({ page, context }, use, testInfo) => {
+    await use(new AuthenticatedTronApp(context, page, testInfo))
+  },
+  cmdBar: async ({ page }, use) => {
+    await use(new CmdBarFixture(page))
+  },
+  editor: async ({ page }, use) => {
+    await use(new EditorFixture(page))
+  },
+  toolbar: async ({ page }, use) => {
+    await use(new ToolbarFixture(page))
+  },
+  scene: async ({ page }, use) => {
+    await use(new SceneFixture(page))
+  },
+  homePage: async ({ page }, use) => {
+    await use(new HomePageFixture(page))
+  },
+})
+
+test.afterEach(async ({ page }, testInfo) => {
+  await tearDown(page, testInfo)
+})
+
+export { expect } from '@playwright/test'

e2e/playwright/fixtures/homePageFixture.ts

@@ -0,0 +1,103 @@
+import type { Page, Locator } from '@playwright/test'
+import { expect } from '@playwright/test'
+
+interface ProjectCardState {
+  title: string
+  fileCount: number
+  folderCount: number
+}
+
+interface HomePageState {
+  projectCards: ProjectCardState[]
+  sortBy: 'last-modified-desc' | 'last-modified-asc' | 'name-asc' | 'name-desc'
+}
+
+export class HomePageFixture {
+  public page: Page
+
+  projectCard!: Locator
+  projectCardTitle!: Locator
+  projectCardFile!: Locator
+  projectCardFolder!: Locator
+  sortByDateBtn!: Locator
+  sortByNameBtn!: Locator
+
+  constructor(page: Page) {
+    this.page = page
+    this.reConstruct(page)
+  }
+  reConstruct = (page: Page) => {
+    this.page = page
+
+    this.projectCard = this.page.getByTestId('project-link')
+    this.projectCardTitle = this.page.getByTestId('project-title')
+    this.projectCardFile = this.page.getByTestId('project-file-count')
+    this.projectCardFolder = this.page.getByTestId('project-folder-count')
+
+    this.sortByDateBtn = this.page.getByTestId('home-sort-by-modified')
+    this.sortByNameBtn = this.page.getByTestId('home-sort-by-name')
+  }
+
+  private _serialiseSortBy = async (): Promise<
+    HomePageState['sortBy'] | null
+  > => {
+    const [dateBtnDesc, dateBtnAsc, nameBtnDesc, nameBtnAsc] =
+      await Promise.all([
+        this.sortByDateBtn.getByLabel('arrow down').isVisible(),
+        this.sortByDateBtn.getByLabel('arrow up').isVisible(),
+        this.sortByNameBtn.getByLabel('arrow down').isVisible(),
+        this.sortByNameBtn.getByLabel('arrow up').isVisible(),
+      ])
+    if (dateBtnDesc) return 'last-modified-desc'
+    if (dateBtnAsc) return 'last-modified-asc'
+    if (nameBtnDesc) return 'name-desc'
+    if (nameBtnAsc) return 'name-asc'
+    return null
+  }
+
+  private _serialiseProjectCards = async (): Promise<
+    Array<ProjectCardState>
+  > => {
+    const projectCards = await this.projectCard.all()
+    const projectCardStates: Array<ProjectCardState> = []
+    for (const projectCard of projectCards) {
+      const [title, fileCount, folderCount] = 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
+  }
+
+  /**
+   * Date is excluded from expectState, since it changes
+   * Maybe there a good sanity check we can do each time?
+   */
+  expectState = async (expectedState: HomePageState) => {
+    await expect
+      .poll(async () => {
+        const [projectCards, sortBy] = await Promise.all([
+          this._serialiseProjectCards(),
+          this._serialiseSortBy(),
+        ])
+        return {
+          projectCards,
+          sortBy,
+        }
+      })
+      .toEqual(expectedState)
+  }
+
+  openProject = async (projectTitle: string) => {
+    const projectCard = this.projectCard.locator(
+      this.page.getByText(projectTitle)
+    )
+    await projectCard.click()
+  }
+}

e2e/playwright/fixtures/sceneFixture.ts

@@ -6,18 +6,24 @@ import {
   doAndWaitForImageDiff,
   openAndClearDebugPanel,
   sendCustomCmd,
-} from './test-utils'
+} from '../test-utils'
 
 type mouseParams = {
   pixelDiff: number
 }
 
 export class SceneFixture {
-  public readonly page: Page
-  private readonly exeIndicator: Locator
+  public page: Page
+
+  private exeIndicator!: Locator
 
   constructor(page: Page) {
     this.page = page
+    this.reConstruct(page)
+  }
+  reConstruct = (page: Page) => {
+    this.page = page
+
     this.exeIndicator = page.getByTestId('model-state-indicator-execution-done')
   }
 
@@ -25,33 +31,38 @@ export class SceneFixture {
     x: number,
     y: number,
     { steps }: { steps: number } = { steps: 5000 }
-  ) => [
-    (params?: mouseParams) => {
-      if (params?.pixelDiff) {
-        return doAndWaitForImageDiff(
-          this.page,
-          () => this.page.mouse.click(x, y),
-          params.pixelDiff
-        )
-      }
-      return this.page.mouse.click(x, y)
-    },
-    (params?: mouseParams) => {
-      if (params?.pixelDiff) {
-        return doAndWaitForImageDiff(
-          this.page,
-          () => this.page.mouse.move(x, y, { steps }),
-          params.pixelDiff
-        )
-      }
-      return this.page.mouse.move(x, y, { steps })
-    },
-  ]
+  ) =>
+    [
+      (clickParams?: mouseParams) => {
+        if (clickParams?.pixelDiff) {
+          return doAndWaitForImageDiff(
+            this.page,
+            () => this.page.mouse.click(x, y),
+            clickParams.pixelDiff
+          )
+        }
+        return this.page.mouse.click(x, y)
+      },
+      (moveParams?: mouseParams) => {
+        if (moveParams?.pixelDiff) {
+          return doAndWaitForImageDiff(
+            this.page,
+            () => this.page.mouse.move(x, y, { steps }),
+            moveParams.pixelDiff
+          )
+        }
+        return this.page.mouse.move(x, y, { steps })
+      },
+    ] as const
 
   /** Likely no where, there's a chance it will click something in the scene, depending what you have in the scene.
    *
    * Expects the viewPort to be 1000x500 */
   clickNoWhere = () => this.page.mouse.click(998, 60)
+  /** Likely no where, there's a chance it will click something in the scene, depending what you have in the scene.
+   *
+   * Expects the viewPort to be 1000x500 */
+  moveNoWhere = (steps?: number) => this.page.mouse.move(998, 60, { steps })
 
   moveCameraTo = async (
     pos: { x: number; y: number; z: number },

e2e/playwright/fixtures/toolbarFixture.ts

@@ -0,0 +1,79 @@
+import type { Page, Locator } from '@playwright/test'
+import { expect } from './fixtureSetup'
+import { doAndWaitForImageDiff } from '../test-utils'
+
+export class ToolbarFixture {
+  public page: Page
+
+  extrudeButton!: Locator
+  startSketchBtn!: Locator
+  rectangleBtn!: Locator
+  exitSketchBtn!: Locator
+  editSketchBtn!: Locator
+  fileTreeBtn!: Locator
+  createFileBtn!: Locator
+  fileCreateToast!: Locator
+  filePane!: Locator
+  exeIndicator!: Locator
+
+  constructor(page: Page) {
+    this.page = page
+    this.reConstruct(page)
+  }
+  reConstruct = (page: Page) => {
+    this.page = page
+    this.extrudeButton = page.getByTestId('extrude')
+    this.startSketchBtn = page.getByTestId('sketch')
+    this.rectangleBtn = page.getByTestId('corner-rectangle')
+    this.exitSketchBtn = page.getByTestId('sketch-exit')
+    this.editSketchBtn = page.getByText('Edit Sketch')
+    this.fileTreeBtn = page.locator('[id="files-button-holder"]')
+    this.createFileBtn = page.getByTestId('create-file-button')
+
+    this.filePane = page.locator('#files-pane')
+    this.fileCreateToast = page.getByText('Successfully created')
+    this.exeIndicator = page.getByTestId('model-state-indicator-execution-done')
+  }
+
+  startSketchPlaneSelection = async () =>
+    doAndWaitForImageDiff(this.page, () => this.startSketchBtn.click(), 500)
+
+  editSketch = async () => {
+    await this.editSketchBtn.first().click()
+    // One of the rare times we want to allow a arbitrary wait
+    // this is for the engine animation, as it takes 500ms to complete
+    await this.page.waitForTimeout(600)
+  }
+
+  private _serialiseFileTree = async () => {
+    return this.page
+      .locator('#files-pane')
+      .getByTestId('file-tree-item')
+      .allInnerTexts()
+  }
+  /**
+   * TODO folders, in expect state
+   */
+  expectFileTreeState = async (expected: string[]) => {
+    await expect.poll(this._serialiseFileTree).toEqual(expected)
+  }
+  createFile = async ({ wait }: { wait: boolean } = { wait: false }) => {
+    await this.createFileBtn.click()
+    await expect(this.fileCreateToast).toBeVisible()
+    if (wait) {
+      await this.fileCreateToast.waitFor({ state: 'detached' })
+    }
+  }
+  /**
+   * Opens file by it's name and waits for execution to finish
+   */
+  openFile = async (
+    fileName: string,
+    { wait }: { wait?: boolean } = { wait: true }
+  ) => {
+    await this.filePane.getByText(fileName).click()
+    if (wait) {
+      await expect(this.exeIndicator).toBeVisible({ timeout: 15_000 })
+    }
+  }
+}

e2e/playwright/playwright-deprecated.ts

@@ -0,0 +1,7 @@
+import { test, expect } from '@playwright/test'
+
+/** @deprecated, import from ./fixtureSetup.ts instead */
+export const _test = test
+
+/** @deprecated, import from ./fixtureSetup.ts instead */
+export const _expect = expect

e2e/playwright/point-click.spec.ts

@@ -1,7 +1,7 @@
-import { test, expect, AuthenticatedApp } from './fixtureSetup'
-import { EditorFixture } from './editorFixture'
-import { SceneFixture } from './sceneFixture'
-import { ToolbarFixture } from './toolbarFixture'
+import { test, expect, AuthenticatedApp } from './fixtures/fixtureSetup'
+import { EditorFixture } from './fixtures/editorFixture'
+import { SceneFixture } from './fixtures/sceneFixture'
+import { ToolbarFixture } from './fixtures/toolbarFixture'
 
 // test file is for testing point an click code gen functionality that's not sketch mode related
 

e2e/playwright/snapshot-tests.spec.ts

@@ -455,6 +455,7 @@ test(
     await page.mouse.move(startXPx + PUR * 20, 500 - PUR * 10)
     await expect(page).toHaveScreenshot({
       maxDiffPixels: 100,
+      mask: [page.getByTestId('model-state-indicator')],
     })
 
     await page.mouse.click(startXPx + PUR * 20, 500 - PUR * 10)
@@ -474,6 +475,7 @@ test(
 
     await expect(page).toHaveScreenshot({
       maxDiffPixels: 100,
+      mask: [page.getByTestId('model-state-indicator')],
     })
   }
 )
@@ -531,6 +533,7 @@ test(
     // Ensure the draft rectangle looks the same as it usually does
     await expect(page).toHaveScreenshot({
       maxDiffPixels: 100,
+      mask: [page.getByTestId('model-state-indicator')],
     })
   }
 )
@@ -585,6 +588,7 @@ test(
     // Ensure the draft rectangle looks the same as it usually does
     await expect(page).toHaveScreenshot({
       maxDiffPixels: 100,
+      mask: [page.getByTestId('model-state-indicator')],
     })
     await expect(page.locator('.cm-content')).toHaveText(
       `const sketch001 = startSketchOn('XZ')

e2e/playwright/test-utils.ts

@@ -1066,3 +1066,7 @@ export async function openAndClearDebugPanel(page: Page) {
   await openDebugPanel(page)
   return clearCommandLogs(page)
 }
+
+export function sansWhitespace(str: string) {
+  return str.replace(/\s+/g, '').trim()
+}

e2e/playwright/toolbarFixture.ts

@@ -1,21 +0,0 @@
-import type { Page, Locator } from '@playwright/test'
-import { doAndWaitForImageDiff } from './test-utils'
-
-export class ToolbarFixture {
-  public readonly page: Page
-  readonly extrudeButton: Locator
-  readonly startSketchBtn: Locator
-  readonly rectangleBtn: Locator
-  readonly exitSketchBtn: Locator
-
-  constructor(page: Page) {
-    this.page = page
-    this.extrudeButton = page.getByTestId('extrude')
-    this.startSketchBtn = page.getByTestId('sketch')
-    this.rectangleBtn = page.getByTestId('corner-rectangle')
-    this.exitSketchBtn = page.getByTestId('sketch-exit')
-  }
-
-  startSketchPlaneSelection = async () =>
-    doAndWaitForImageDiff(this.page, () => this.startSketchBtn.click(), 500)
-}

src/clientSideScene/CameraControls.ts

@@ -306,9 +306,19 @@ export class CameraControls {
         event: 'camera_drag_end',
         callback: cb,
       })
+      this.engineCommandManager.subscribeToUnreliable({
+        event: 'default_camera_zoom',
+        callback: (a) => {
+          console.log('zoom', a)
+          cb(a)
+        },
+      })
       this.engineCommandManager.subscribeTo({
         event: 'default_camera_zoom',
-        callback: cb,
+        callback: (a) => {
+          console.log('zoom', a)
+          cb(a)
+        },
       })
       this.engineCommandManager.subscribeTo({
         event: 'default_camera_get_settings',

src/components/FileTree.tsx

@@ -194,7 +194,7 @@ const FileTreeItem = ({
   }
 
   return (
-    <div className="contents" ref={itemRef}>
+    <div className="contents" data-testid="file-tree-item" ref={itemRef}>
       {fileOrDir.children === null ? (
         <li
           className={
@@ -389,12 +389,14 @@ interface FileTreeProps {
 
 export const FileTreeMenu = () => {
   const { send } = useFileContext()
+  const { send: modelingSend } = useModelingContext()
 
   function createFile() {
     send({
       type: 'Create file',
       data: { name: '', makeDir: false, shouldSetToRename: true },
     })
+    modelingSend({ type: 'Cancel' })
   }
 
   function createFolder() {

src/components/ProjectCard/ProjectCard.tsx

@@ -104,20 +104,33 @@ function ProjectCard({
               ref={inputRef}
             />
           ) : (
-            <h3 className="font-sans relative z-0 p-2">
+            <h3
+              className="font-sans relative z-0 p-2"
+              data-testid="project-title"
+            >
               {project.name?.replace(FILE_EXT, '')}
             </h3>
           )}
           <span className="px-2 text-chalkboard-60 text-xs">
-            {numberOfFiles} file{numberOfFiles === 1 ? '' : 's'}{' '}
-            {numberOfFolders > 0 &&
-              `/ ${numberOfFolders} folder${numberOfFolders === 1 ? '' : 's'}`}
+            <span data-testid="project-file-count">{numberOfFiles}</span> file
+            {numberOfFiles === 1 ? '' : 's'}{' '}
+            {numberOfFolders > 0 && (
+              <>
+                {'/ '}
+                <span data-testid="project-folder-count">
+                  {numberOfFolders}
+                </span>{' '}
+                folder{numberOfFolders === 1 ? '' : 's'}
+              </>
+            )}
           </span>
           <span className="px-2 text-chalkboard-60 text-xs">
             Edited{' '}
-            {project.metadata && project.metadata.modified
-              ? getDisplayedTime(parseInt(project.metadata.modified))
-              : 'never'}
+            <span data-testid="project-edit-date">
+              {project.metadata && project.metadata.modified
+                ? getDisplayedTime(parseInt(project.metadata.modified))
+                : 'never'}
+            </span>
           </span>
         </div>
       </Link>

src/lang/std/engineConnection.ts

@@ -1230,7 +1230,7 @@ type ModelTypes = Models['OkModelingCmdResponse_type']['type']
 
 type UnreliableResponses = Extract<
   Models['OkModelingCmdResponse_type'],
-  { type: 'highlight_set_entity' | 'camera_drag_move' }
+  { type: 'highlight_set_entity' | 'camera_drag_move' | 'default_camera_zoom' }
 >
 export interface UnreliableSubscription<T extends UnreliableResponses['type']> {
   event: T
@@ -1572,9 +1572,11 @@ export class EngineCommandManager extends EventTarget {
             'message',
             (event: MessageEvent) => {
               const result: UnreliableResponses = JSON.parse(event.data)
+              console.log('result', result)
               Object.values(
                 this.unreliableSubscriptions[result.type] || {}
               ).forEach(
+                
                 // TODO: There is only one response that uses the unreliable channel atm,
                 // highlight_set_entity, if there are more it's likely they will all have the same
                 // sequence logic, but I'm not sure if we use a single global sequence or a sequence
@@ -1933,6 +1935,9 @@ export class EngineCommandManager extends EventTarget {
     ) {
       ;(cmd as any).sequence = this.outSequence
       this.outSequence++
+      if(cmd.type === 'default_camera_zoom') {
+        console.log('sending zoom', cmd)
+      }
       this.engineConnection?.unreliableSend(command)
       return Promise.resolve(null)
     } else if (

src/lib/utils.ts

@@ -15,6 +15,30 @@ export function isArray(val: any): val is unknown[] {
 }
 
 /**
+ * An alternative to `Object.keys()` that returns an array of keys with types.
+ *
+ * It's UNSAFE because because of TS's structural subtyping and how at runtime, you can
+ * extend a JS object with whatever keys you want.
+ *
+ * Why we shouldn't be extending objects with arbitrary keys at run time, the structural subtyping
+ * issue could be a confusing bug, for example, in the below snippet `myKeys` is typed as
+ * `('x' | 'y')[]` but is really `('x' | 'y' | 'name')[]`
+ * ```ts
+ * interface Point { x: number; y: number }
+ * interface NamedPoint { x: number; y: number; name: string }
+ *
+ * let point: Point = { x: 1, y: 2 }
+ * let namedPoint: NamedPoint = { x: 1, y: 2, name: 'A' }
+ *
+ * // Structural subtyping allows this assignment
+ * point = namedPoint  // This is allowed because NamedPoint has all properties of Point
+ * const myKeys = unsafeTypedKeys(point) // typed as ('x' | 'y')[] but is really ('x' | 'y' | 'name')[]
+ * ```
+ */
+export function unsafeTypedKeys<T extends object>(obj: T): Array<keyof T> {
+  return Object.keys(obj) as Array<keyof T>
+}
+/*
  * Predicate that checks if a value is not null and not undefined.  This is
  * useful for functions like Array::filter() and Array::find() that have
  * overloads that accept a type guard.

src/machines/authMachine.ts

@@ -78,7 +78,7 @@ export const authMachine = setup({
     ),
   },
 }).createMachine({
-  /** @xstate-layout N4IgpgJg5mDOIC5QEECuAXAFgOgMabFwGsBJAMwBkB7KGCEgOwGIIqGxsBLBgNyqI75CRALQAbGnRHcA2gAYAuolAAHKrE7pObZSAAeiAIwBmAEzYA7ABYAbAFZTcgBzGbN44adWANCACeiKbGdthypk4AnBFyVs6uQXYAvom+aFh4BMTk1LSQjExgAE6FVIXYKmIAhuhkpQC2GcLikpDSDPJKSCBqGlo6XQYIrk7YETYWctYRxmMWFk6+AUPj2I5OdjZyrnZOFmbJqRg4Ern0zDkABFQYHbo9mtoMuoOGFhHYxlZOhvbOsUGGRaIL4WbBONzWQxWYwWOx2H4HEBpY4tCAAeQwTEuskUd3UD36oEGIlMNlCuzk8Js0TcVisgP8iG2lmcGysb0mW3ByRSIAYVAgcF0yLxvUez0QIms5ImVJpNjpDKWxmw9PGdLh4Te00+iORjSylFRjFFBKeA0QThGQWcexMwWhniBCGiqrepisUVMdlszgieqO2BOdBNXXufXNRKMHtGVuphlJkXs4Wdriso2CCasdgipOidID6WDkAx6FNEYlCAT5jmcjrckMdj2b3GzpsjbBMVMWezDbGPMSQA */
+  /** @xstate-layout N4IgpgJg5mDOIC5QEECuAXAFgOgMabFwGsBJAMwBkB7KGCEgOwGIIqGxsBLBgNyqI75CRALQAbGnRHcA2gAYAuolAAHKrE7pObZSAAeiAIwAWQ9gBspuQCYAnAGYAHPYCsx+4ccAaEAE9E1q7YcoZyxrYR1m7mcrYAvnE+aFh4BMTk1LSQjExgAE55VHnYKmIAhuhkRQC2qcLikpDSDPJKSCBqGlo67QYI9gDs5tge5o6h5vau7oY+-v3mA9jWco4u5iu21ua2YcYJSRg4Eln0zJkABFQYrbqdmtoMun2GA7YjxuPmLqvGNh5zRCfJaOcyLUzuAYuFyGcwHEDJY6NCAAeQwTEuskUd3UDx6oD6Im2wUcAzkMJ2cjBxlMgIWLmwZLWljecjJTjh8IYVAgcF0iJxXUez0QIgGxhJZIpu2ptL8AWwtje1nCW2iq1shns8MRdXSlGRjEFeKevUQjkcy3sqwGHimbg83nlCF22GMytVUWMMUc8USCKO2BOdCN7Xu3VNBKMKsVFp2hm2vu+1id83slkVrgTxhcW0pNJ1geDkDR6GNEZFCAT1kZZLk9cMLltb0WdPMjewjjC1mzOZCtk5CSAA */
   id: 'Auth',
   initial: 'checkIfLoggedIn',
   context: {
@@ -162,15 +162,15 @@ async function getUser(input: { token?: string }) {
     }
   }
 
-  const userPromise = !isDesktop()
-    ? fetch(url, {
+  const userPromise = isDesktop()
+    ? getUserDesktop(token, VITE_KC_API_BASE_URL)
+    : fetch(url, {
         method: 'GET',
         credentials: 'include',
         headers,
       })
         .then((res) => res.json())
         .catch((err) => console.error('error from Browser getUser', err))
-    : getUserDesktop(input.token ?? '', VITE_KC_API_BASE_URL)
 
   const user = await userPromise
 

src/routes/Home.tsx

@@ -248,6 +248,7 @@ const Home = () => {
               <small>Sort by</small>
               <ActionButton
                 Element="button"
+                data-testid="home-sort-by-name"
                 className={
                   'text-xs border-primary/10 ' +
                   (!sort.includes('name')
@@ -269,6 +270,7 @@ const Home = () => {
               </ActionButton>
               <ActionButton
                 Element="button"
+                data-testid="home-sort-by-modified"
                 className={
                   'text-xs border-primary/10 ' +
                   (!isSortByModified

src/wasm-lib/Cargo.toml

@@ -24,12 +24,11 @@ wasm-bindgen-futures = "0.4.42"
 
 [dev-dependencies]
 anyhow = "1"
-hyper = { version = "0.14.29", features = ["server", "http1"] }
 image = { version = "0.25.1", default-features = false, features = ["png"] }
 kittycad = { workspace = true, default-features = true }
 kittycad-modeling-cmds = { workspace = true }
 pretty_assertions = "1.4.1"
-reqwest = { version = "0.11.26", default-features = false }
+reqwest = { version = "0.12", default-features = false }
 tokio = { version = "1.40.0", features = ["rt-multi-thread", "macros", "time"] }
 twenty-twenty = "0.8"
 uuid = { version = "1.10.0", features = ["v4", "js", "serde"] }
@@ -67,12 +66,12 @@ members = [
 	"kcl",
 	"kcl-macros",
 	"kcl-test-server",
+	"kcl-to-core",
 ]
 
 [workspace.dependencies]
-http = "0.2.12"
-kittycad = { version = "0.3.20", default-features = false, features = ["js", "requests"] }
-kittycad-modeling-session = "0.1.4"
+http = "1"
+kittycad = { version = "0.3.23", default-features = false, features = ["js", "requests"] }
 kittycad-modeling-cmds = { version = "0.2.64", features = ["websocket"] }
 
 [[test]]

src/wasm-lib/derive-docs/Cargo.toml

@@ -20,7 +20,7 @@ quote = "1"
 regex = "1.10"
 serde = { version = "1.0.210", features = ["derive"] }
 serde_tokenstream = "0.2"
-syn = { version = "2.0.77", features = ["full"] }
+syn = { version = "2.0.79", features = ["full"] }
 
 [dev-dependencies]
 anyhow = "1.0.89"

src/wasm-lib/derive-docs/src/lib.rs

@@ -758,7 +758,7 @@ fn generate_code_block_test(fn_name: &str, code_block: &str, index: usize) -> pr
                 fs: std::sync::Arc::new(crate::fs::FileManager::new()),
                 stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
                 settings: Default::default(),
-                is_mock: true,
+                context_type: crate::executor::ContextType::Mock,
             };
 
             ctx.run(&program, None).await.unwrap();

src/wasm-lib/derive-docs/tests/args_with_lifetime.gen

@@ -14,7 +14,7 @@ mod test_examples_someFn {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }

src/wasm-lib/derive-docs/tests/args_with_refs.gen

@@ -14,7 +14,7 @@ mod test_examples_someFn {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }

src/wasm-lib/derive-docs/tests/array.gen

@@ -14,7 +14,7 @@ mod test_examples_show {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }
@@ -47,7 +47,7 @@ mod test_examples_show {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }

src/wasm-lib/derive-docs/tests/box.gen

@@ -14,7 +14,7 @@ mod test_examples_show {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }

src/wasm-lib/derive-docs/tests/doc_comment_with_code.gen

@@ -15,7 +15,7 @@ mod test_examples_my_func {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }
@@ -48,7 +48,7 @@ mod test_examples_my_func {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }

src/wasm-lib/derive-docs/tests/lineTo.gen

@@ -15,7 +15,7 @@ mod test_examples_line_to {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }
@@ -48,7 +48,7 @@ mod test_examples_line_to {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }

src/wasm-lib/derive-docs/tests/min.gen

@@ -14,7 +14,7 @@ mod test_examples_min {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }
@@ -47,7 +47,7 @@ mod test_examples_min {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }

src/wasm-lib/derive-docs/tests/option.gen

@@ -14,7 +14,7 @@ mod test_examples_show {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }

src/wasm-lib/derive-docs/tests/option_input_format.gen

@@ -14,7 +14,7 @@ mod test_examples_import {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }

src/wasm-lib/derive-docs/tests/return_vec_box_sketch.gen

@@ -14,7 +14,7 @@ mod test_examples_import {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }

src/wasm-lib/derive-docs/tests/return_vec_sketch.gen

@@ -14,7 +14,7 @@ mod test_examples_import {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }

src/wasm-lib/derive-docs/tests/show.gen

@@ -14,7 +14,7 @@ mod test_examples_show {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }

src/wasm-lib/derive-docs/tests/test_args_with_exec_state.gen

@@ -14,7 +14,7 @@ mod test_examples_some_function {
             fs: std::sync::Arc::new(crate::fs::FileManager::new()),
             stdlib: std::sync::Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: crate::executor::ContextType::Mock,
         };
         ctx.run(&program, None).await.unwrap();
     }

src/wasm-lib/kcl-macros/Cargo.toml

@@ -15,7 +15,7 @@ databake = "0.1.8"
 kcl-lib = { path = "../kcl" }
 proc-macro2 = "1"
 quote = "1"
-syn = { version = "2.0.77", features = ["full"] }
+syn = { version = "2.0.79", features = ["full"] }
 
 [dev-dependencies]
 pretty_assertions = "1.4.1"

src/wasm-lib/kcl-test-server/Cargo.toml

@@ -7,7 +7,7 @@ license = "MIT"
 
 [dependencies]
 anyhow = "1.0.89"
-hyper = { version = "0.14.29", features = ["server"] }
+hyper = { version = "0.14.29", features = ["http1", "server", "tcp"] }
 kcl-lib = { version = "0.2", path = "../kcl" }
 pico-args = "0.5.0"
 serde = { version = "1.0.210", features = ["derive"] }

src/wasm-lib/kcl-to-core/Cargo.toml

@@ -0,0 +1,23 @@
+[package]
+name = "kcl-to-core"
+description = "Utility methods to convert kcl to engine core executable tests"
+version = "0.1.0"
+edition = "2021"
+license = "MIT"
+repository = "https://github.com/KittyCAD/modeling-app"
+
+[lib]
+
+[[bin]]
+name = "kcl-to-core"
+path = "src/tool.rs"
+
+[dependencies]
+anyhow = "1"
+async-trait = "0.1.81"
+indexmap = "2.5.0"
+kcl-lib = { path = "../kcl" }
+kittycad = { workspace = true, features = ["clap"] }
+kittycad-modeling-cmds = { workspace = true }
+tokio = { version = "1.38", features = ["full", "time", "rt", "tracing"] }
+uuid = { version = "1.9.1", features = ["v4", "js", "serde"] }

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

@@ -0,0 +1,469 @@
+use anyhow::Result;
+use indexmap::IndexMap;
+use kcl_lib::{errors::KclError, executor::DefaultPlanes};
+use kittycad_modeling_cmds::{
+    self as kcmc,
+    id::ModelingCmdId,
+    ok_response::OkModelingCmdResponse,
+    shared::PathSegment::{self, *},
+    websocket::{ModelingBatch, ModelingCmdReq, OkWebSocketResponseData, WebSocketRequest, WebSocketResponse},
+};
+use std::{
+    collections::HashMap,
+    sync::{Arc, Mutex},
+};
+use tokio::sync::RwLock;
+
+const CPP_PREFIX: &str = "const double scaleFactor = 100;\n";
+const NEED_PLANES: bool = true;
+
+#[derive(Debug, Clone)]
+pub struct EngineConnection {
+    batch: Arc<Mutex<Vec<(WebSocketRequest, kcl_lib::executor::SourceRange)>>>,
+    batch_end: Arc<Mutex<IndexMap<uuid::Uuid, (WebSocketRequest, kcl_lib::executor::SourceRange)>>>,
+    core_test: Arc<Mutex<String>>,
+    default_planes: Arc<RwLock<Option<DefaultPlanes>>>,
+}
+
+impl EngineConnection {
+    pub async fn new(result: Arc<Mutex<String>>) -> Result<EngineConnection> {
+        if let Ok(mut code) = result.lock() {
+            code.push_str(CPP_PREFIX);
+        }
+
+        Ok(EngineConnection {
+            batch: Arc::new(Mutex::new(Vec::new())),
+            batch_end: Arc::new(Mutex::new(IndexMap::new())),
+            core_test: result,
+            default_planes: Default::default(),
+        })
+    }
+
+    fn handle_command(&self, cmd_id: &ModelingCmdId, cmd: &kcmc::ModelingCmd) -> (String, OkModelingCmdResponse) {
+        let cpp_id = id_to_cpp(cmd_id);
+        let cmd_id = format!("{}", cmd_id);
+        let mut this_response = OkModelingCmdResponse::Empty {};
+
+        let new_code = match cmd {
+            kcmc::ModelingCmd::ObjectVisible(kcmc::ObjectVisible { hidden, object_id }) => {
+                format!(r#"scene->getSceneObject(Utils::UUID("{object_id}"))->setHidden({hidden});"#)
+            }
+            kcmc::ModelingCmd::EnableSketchMode(kcmc::EnableSketchMode {
+                entity_id,
+                animated: _,
+                ortho: _,
+                adjust_camera: _,
+                planar_normal,
+            }) => {
+                if let Some(normal) = planar_normal {
+                    format!(
+                        r#"
+                        if(!scene->enableSketchMode(Utils::UUID("{entity_id}"), glm::dvec3 {{ {}, {}, {}, }}, nullopt))
+                        {{
+                            Utils::Plane plane_{cpp_id}(glm::dvec3 {{ 0, 0, 0 }}, glm::dvec3 {{ 1, 0, 0 }}, glm::dvec3 {{ 0, 1, 0 }});
+                            scene->enableSketchMode(plane_{cpp_id}, nullopt, nullopt, false);
+                        }}
+                    "#,
+                        normal.x, normal.y, normal.z
+                    )
+                } else {
+                    "".into()
+                }
+            }
+            kcmc::ModelingCmd::SketchModeDisable(kcmc::SketchModeDisable {}) => "scene->disableSketchMode();".into(),
+            kcmc::ModelingCmd::MakePlane(kcmc::MakePlane {
+                origin,
+                x_axis,
+                y_axis,
+                size,
+                ..
+            }) => {
+                let plane_id = format!("plane_{}", cpp_id);
+                format!(
+                    r#"
+                    auto {plane_id} = make_shared<Object>("plane", glm::dvec3 {{ 0, 0, 0 }});
+                    {plane_id}->setUUID(Utils::UUID("{cmd_id}"));
+                    {plane_id}->makePlane(glm::dvec3 {{ {}, {}, {} }} * scaleFactor, glm::dvec3 {{ {}, {}, {} }}, glm::dvec3 {{ {}, {}, {} }}, {}, false);
+                    {plane_id}->setHidden();
+                    scene->addSceneObject({plane_id});
+                "#,
+                    origin.x.0,
+                    origin.y.0,
+                    origin.z.0,
+                    x_axis.x,
+                    x_axis.y,
+                    x_axis.z,
+                    y_axis.x,
+                    y_axis.y,
+                    y_axis.z,
+                    size.0
+                )
+            }
+            kcmc::ModelingCmd::StartPath(kcmc::StartPath {}) => {
+                let sketch_id = format!("sketch_{}", cpp_id);
+                let path_id = format!("path_{}", cpp_id);
+                format!(
+                    r#"
+                    auto {sketch_id} = make_shared<Object>("sketch", glm::dvec3 {{ 0, 0, 0 }});
+                    {sketch_id}->setUUID(Utils::UUID("{cmd_id}"));
+                    {sketch_id}->makePath(true);
+                    auto {path_id} = {sketch_id}->get<Model::Brep::Path>();
+                    scene->addSceneObject({sketch_id});
+                "#
+                )
+            }
+            kcmc::ModelingCmd::MovePathPen(kcmc::MovePathPen { path, to }) => {
+                format!(
+                    r#"
+                    path_{}->moveTo(glm::dvec3 {{ {}, {}, 0.0 }} * scaleFactor);
+                "#,
+                    id_to_cpp(path),
+                    to.x.0,
+                    to.y.0
+                )
+            }
+            kcmc::ModelingCmd::ExtendPath(kcmc::ExtendPath { path, segment }) => match segment {
+                Line { end, relative } => {
+                    format!(
+                        r#"
+                            path_{}->lineTo(glm::dvec3 {{ {}, {}, 0.0 }} * scaleFactor, {{ {} }});
+                        "#,
+                        id_to_cpp(path),
+                        end.x.0,
+                        end.y.0,
+                        relative
+                    )
+                }
+                PathSegment::Arc {
+                    center,
+                    radius,
+                    start,
+                    end,
+                    relative,
+                } => {
+                    let start = start.value;
+                    let end = end.value;
+                    let radius = radius.0;
+
+                    format!(
+                        r#"
+                            path_{}->addArc(glm::dvec2 {{ {}, {} }} * scaleFactor, {radius} * scaleFactor, {start}, {end}, {{ {} }});
+                        "#,
+                        id_to_cpp(path),
+                        center.x.0,
+                        center.y.0,
+                        relative
+                    )
+                }
+                PathSegment::TangentialArcTo {
+                    angle_snap_increment: _,
+                    to,
+                } => {
+                    format!(
+                        r#"
+                            path_{}->tangentialArcTo(glm::dvec3 {{ {}, {}, {} }} * scaleFactor, nullopt, {{ true }});
+                        "#,
+                        id_to_cpp(path),
+                        to.x.0,
+                        to.y.0,
+                        to.z.0,
+                    )
+                }
+                _ => {
+                    format!("//{:?}", cmd)
+                }
+            },
+            kcmc::ModelingCmd::ClosePath(kcmc::ClosePath { path_id }) => {
+                format!(
+                    r#"
+                    path_{}->close();
+                    sketch_{}->toSolid2D();
+                "#,
+                    uuid_to_cpp(path_id),
+                    uuid_to_cpp(path_id)
+                )
+            }
+            kcmc::ModelingCmd::Extrude(kcmc::Extrude { distance, target }) => {
+                format!(
+                    r#"
+                    scene->getSceneObject(Utils::UUID("{target}"))->extrudeToSolid3D({} * scaleFactor, true);
+                "#,
+                    distance.0
+                )
+            }
+            kcmc::ModelingCmd::Revolve(kcmc::Revolve {
+                angle,
+                axis,
+                axis_is_2d,
+                origin,
+                target,
+                tolerance,
+            }) => {
+                let ox = origin.x.0;
+                let oy = origin.y.0;
+                let oz = origin.z.0;
+                let ax = axis.x;
+                let ay = axis.y;
+                let az = axis.z;
+                let angle = angle.value;
+                let tolerance = tolerance.0;
+                format!(
+                    r#"
+                    scene->getSceneObject(Utils::UUID("{target}"))->revolveToSolid3D(nullopt, glm::dvec3 {{ {ox}, {oy}, {oz} }} * scaleFactor, glm::dvec3 {{ {ax}, {ay}, {az} }}, {axis_is_2d}, {angle}, {tolerance});
+                "#
+                )
+            }
+            kcmc::ModelingCmd::Solid2dAddHole(kcmc::Solid2dAddHole { hole_id, object_id }) => {
+                format!(
+                    r#"scene->getSceneObject(Utils::UUID("{object_id}"))->get<Model::Brep::Solid2D>()->addHole(
+                    make_shared<Model::Brep::Path>(*scene->getSceneObject(Utils::UUID("{hole_id}"))->get<Model::Brep::Solid2D>()->getPath())
+                );"#
+                )
+            }
+            kcmc::ModelingCmd::Solid3dGetExtrusionFaceInfo(kcmc::Solid3dGetExtrusionFaceInfo {
+                object_id,
+                edge_id,
+            }) => {
+                format!(
+                    r#"
+                    //face info get {} {}
+                "#,
+                    object_id, edge_id
+                )
+            }
+            kcmc::ModelingCmd::EntityCircularPattern(kcmc::EntityCircularPattern {
+                entity_id,
+                axis,
+                center,
+                num_repetitions,
+                arc_degrees,
+                rotate_duplicates,
+            }) => {
+                let entity_ids = generate_repl_uuids(*num_repetitions as usize);
+
+                this_response = OkModelingCmdResponse::EntityCircularPattern(kcmc::output::EntityCircularPattern {
+                    entity_ids: entity_ids.clone(),
+                });
+
+                let mut base_code: String = format!(
+                    r#"
+                    auto reps_{cpp_id} = scene->entityCircularPattern(Utils::UUID("{}"), {num_repetitions}, glm::dvec3 {{ {}, {}, {} }}  * scaleFactor, glm::dvec3 {{ {}, {}, {} }}  * scaleFactor, {arc_degrees}, {rotate_duplicates});
+                "#,
+                    entity_id, axis.x, axis.y, axis.z, center.x.0, center.y.0, center.z.0
+                );
+
+                let repl_uuid_fix_code = codegen_cpp_repl_uuid_setters(&cpp_id, &entity_ids);
+                base_code.push_str(&repl_uuid_fix_code);
+
+                base_code
+            }
+            kcmc::ModelingCmd::EntityLinearPattern(kcmc::EntityLinearPattern {
+                entity_id: _,
+                axis: _,
+                num_repetitions: _,
+                spacing: _,
+            }) => {
+                // let num_transforms = transforms.len();
+                // let num_repetitions = transform.iter().map(|t| if t.replicate { 1 } else { 0 } ).sum();
+
+                // let mut base_code: String = format!(
+                //     r#"
+                //     std::vector<std::optional<Scene::Scene::LinearPatternTransform>> transforms_{cpp_id}({num_transforms});
+                // "#);
+
+                // for t in transform {
+                //     translations_xyz.push(t.translate.x.to_millimeters(state.units));
+                //     translations_xyz.push(t.translate.y.to_millimeters(state.units));
+                //     translations_xyz.push(t.translate.z.to_millimeters(state.units));
+                //     scale_xyz.push(t.scale.x);
+                //     scale_xyz.push(t.scale.y);
+                //     scale_xyz.push(t.scale.z);
+                // }
+
+                // let entity_ids = generate_repl_uuids(*num_repetitions as usize);
+
+                // this_response = OkModelingCmdResponse::EntityLinearPattern {
+                //     data: kittycad::types::EntityLinearPattern {
+                //         entity_ids: entity_ids.clone(),
+                //     },
+                // };
+
+                // let mut base_code: String = format!(
+                //     r#"
+                //     auto reps_{cpp_id} = scene->entityCircularPattern(Utils::UUID("{}"), {num_repetitions}, glm::dvec3 {{ {}, {}, {} }}  * scaleFactor, glm::dvec3 {{ {}, {}, {} }}  * scaleFactor, {arc_degrees}, {rotate_duplicates});
+                // "#,
+                //     entity_id, axis.x, axis.y, axis.z, center.x, center.y, center.z
+                // );
+
+                // let repl_uuid_fix_code = codegen_cpp_repl_uuid_setters(&cpp_id, &entity_ids);
+                // base_code.push_str(&repl_uuid_fix_code);
+
+                // base_code
+                format!("//{:?}", cmd)
+            }
+            _ => {
+                //helps us follow along with the currently unhandled engine commands
+                format!("//{:?}", cmd)
+            }
+        };
+
+        (new_code, this_response)
+    }
+}
+
+fn id_to_cpp(id: &ModelingCmdId) -> String {
+    uuid_to_cpp(&id.0)
+}
+
+fn uuid_to_cpp(id: &uuid::Uuid) -> String {
+    let str = format!("{}", id);
+    str::replace(&str, "-", "_")
+}
+
+fn generate_repl_uuids(count: usize) -> Vec<uuid::Uuid> {
+    let mut repl_ids: Vec<uuid::Uuid> = Vec::new();
+
+    repl_ids.resize_with(count, uuid::Uuid::new_v4);
+    repl_ids
+}
+
+fn codegen_cpp_repl_uuid_setters(reps_id: &str, entity_ids: &[uuid::Uuid]) -> String {
+    let mut codegen = String::new();
+
+    for (i, id) in entity_ids.iter().enumerate() {
+        let cpp_id = uuid_to_cpp(id);
+        let iter = format!(
+            r#"
+            //change object id -> {id}
+            auto repl_{cpp_id} = scene->getSceneObject(reps_{reps_id}[{i}]);
+            scene->removeSceneObject(repl_{cpp_id}->getUUID(), false);
+            repl_{cpp_id}->setUUID(Utils::UUID("{id}"));
+            scene->addSceneObject(repl_{cpp_id});
+        "#
+        );
+        codegen.push_str(&iter);
+    }
+
+    codegen
+}
+
+#[async_trait::async_trait]
+impl kcl_lib::engine::EngineManager for EngineConnection {
+    fn batch(&self) -> Arc<Mutex<Vec<(WebSocketRequest, kcl_lib::executor::SourceRange)>>> {
+        self.batch.clone()
+    }
+
+    fn batch_end(&self) -> Arc<Mutex<IndexMap<uuid::Uuid, (WebSocketRequest, kcl_lib::executor::SourceRange)>>> {
+        self.batch_end.clone()
+    }
+
+    async fn default_planes(&self, source_range: kcl_lib::executor::SourceRange) -> Result<DefaultPlanes, KclError> {
+        if NEED_PLANES {
+            {
+                let opt = self.default_planes.read().await.as_ref().cloned();
+                if let Some(planes) = opt {
+                    return Ok(planes);
+                }
+            } // drop the read lock
+
+            let new_planes = self.new_default_planes(source_range).await?;
+            *self.default_planes.write().await = Some(new_planes.clone());
+
+            Ok(new_planes)
+        } else {
+            Ok(DefaultPlanes::default())
+        }
+    }
+
+    async fn clear_scene_post_hook(&self, _source_range: kcl_lib::executor::SourceRange) -> Result<(), KclError> {
+        Ok(())
+    }
+
+    async fn inner_send_modeling_cmd(
+        &self,
+        id: uuid::Uuid,
+        _source_range: kcl_lib::executor::SourceRange,
+        cmd: WebSocketRequest,
+        _id_to_source_range: std::collections::HashMap<uuid::Uuid, kcl_lib::executor::SourceRange>,
+    ) -> Result<WebSocketResponse, KclError> {
+        match cmd {
+            WebSocketRequest::ModelingCmdBatchReq(ModelingBatch {
+                ref requests,
+                batch_id: _,
+                responses: _,
+            }) => {
+                let mut responses = HashMap::new();
+                for request in requests {
+                    let (new_code, this_response);
+
+                    if let Ok(mut test_code) = self.core_test.lock() {
+                        (new_code, this_response) = self.handle_command(&request.cmd_id, &request.cmd);
+
+                        if !new_code.is_empty() {
+                            let new_code = new_code
+                                .trim()
+                                .split(' ')
+                                .filter(|s| !s.is_empty())
+                                .collect::<Vec<_>>()
+                                .join(" ")
+                                + "\n";
+                            //println!("{new_code}");
+                            test_code.push_str(&new_code);
+                        }
+                    } else {
+                        this_response = OkModelingCmdResponse::Empty {};
+                    }
+
+                    responses.insert(
+                        request.cmd_id,
+                        kcmc::websocket::BatchResponse::Success {
+                            response: this_response,
+                        },
+                    );
+                }
+                Ok(WebSocketResponse::Success(kcmc::websocket::SuccessWebSocketResponse {
+                    success: true,
+                    request_id: Some(id),
+                    resp: OkWebSocketResponseData::ModelingBatch { responses },
+                }))
+            }
+            WebSocketRequest::ModelingCmdReq(ModelingCmdReq { cmd, cmd_id }) => {
+                //also handle unbatched requests inline
+                let (new_code, this_response);
+
+                if let Ok(mut test_code) = self.core_test.lock() {
+                    (new_code, this_response) = self.handle_command(&cmd_id, &cmd);
+
+                    if !new_code.is_empty() {
+                        let new_code = new_code
+                            .trim()
+                            .split(' ')
+                            .filter(|s| !s.is_empty())
+                            .collect::<Vec<_>>()
+                            .join(" ")
+                            + "\n";
+                        //println!("{new_code}");
+                        test_code.push_str(&new_code);
+                    }
+                } else {
+                    this_response = OkModelingCmdResponse::Empty {};
+                }
+
+                Ok(WebSocketResponse::Success(kcmc::websocket::SuccessWebSocketResponse {
+                    success: true,
+                    request_id: Some(id),
+                    resp: OkWebSocketResponseData::Modeling {
+                        modeling_response: this_response,
+                    },
+                }))
+            }
+            _ => Ok(WebSocketResponse::Success(kcmc::websocket::SuccessWebSocketResponse {
+                success: true,
+                request_id: Some(id),
+                resp: OkWebSocketResponseData::Modeling {
+                    modeling_response: OkModelingCmdResponse::Empty {},
+                },
+            })),
+        }
+    }
+}

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

@@ -0,0 +1,30 @@
+use anyhow::Result;
+use kcl_lib::executor::ExecutorContext;
+use std::sync::{Arc, Mutex};
+
+#[cfg(not(target_arch = "wasm32"))]
+mod conn_mock_core;
+
+///Converts the given kcl code to an engine test
+pub async fn kcl_to_engine_core(code: &str) -> Result<String> {
+    let tokens = kcl_lib::token::lexer(code)?;
+    let parser = kcl_lib::parser::Parser::new(tokens);
+    let program = parser.ast()?;
+
+    let result = Arc::new(Mutex::new("".into()));
+    let ref_result = Arc::clone(&result);
+
+    let ctx = ExecutorContext {
+        engine: Arc::new(Box::new(
+            crate::conn_mock_core::EngineConnection::new(ref_result).await?,
+        )),
+        fs: Arc::new(kcl_lib::fs::FileManager::new()),
+        stdlib: Arc::new(kcl_lib::std::StdLib::new()),
+        settings: Default::default(),
+        context_type: kcl_lib::executor::ContextType::MockCustomForwarded,
+    };
+    let _memory = ctx.run(&program, None).await?;
+
+    let result = result.lock().expect("mutex lock").clone();
+    Ok(result)
+}

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

@@ -0,0 +1,19 @@
+use kcl_to_core::*;
+use std::{env, fs};
+
+#[tokio::main]
+async fn main() {
+    let args: Vec<String> = env::args().collect();
+
+    if args.len() < 2 {
+        println!("Usage: kcl-to-core path/to/file.kcl");
+        return;
+    }
+
+    let file_path = &args[1];
+    let kcl = fs::read_to_string(file_path).expect("read file");
+
+    let result = kcl_to_engine_core(&kcl).await.expect("kcl conversion");
+
+    println!("{}", result);
+}

src/wasm-lib/kcl-to-core/tests/kcl_to_core_test.rs

@@ -0,0 +1,19 @@
+use kcl_to_core::*;
+
+#[tokio::test]
+async fn kcl_to_core_test() {
+    let result = kcl_to_engine_core(
+        r#"
+        const part001 = startSketchOn('XY')
+            |> startProfileAt([11.19, 28.35], %)
+            |> line([28.67, -13.25], %, $here)
+            |> line([-4.12, -22.81], %)
+            |> line([-33.24, 14.55], %)
+            |> close(%)
+            |> extrude(5, %)
+    "#,
+    )
+    .await;
+
+    assert!(result.is_ok());
+}

src/wasm-lib/kcl/Cargo.toml

@@ -35,7 +35,7 @@ measurements = "0.11.0"
 mime_guess = "2.0.5"
 parse-display = "0.9.1"
 pyo3 = { version = "0.22.3", optional = true }
-reqwest = { version = "0.11.26", default-features = false, features = ["stream", "rustls-tls"] }
+reqwest = { version = "0.12", default-features = false, features = ["stream", "rustls-tls"] }
 ropey = "1.6.1"
 schemars = { version = "0.8.17", features = ["impl_json_schema", "url", "uuid1", "preserve_order"] }
 serde = { version = "1.0.210", features = ["derive"] }

src/wasm-lib/kcl/src/ast/types.rs

@@ -18,7 +18,11 @@ use tower_lsp::lsp_types::{
     CompletionItem, CompletionItemKind, DocumentSymbol, FoldingRange, FoldingRangeKind, Range as LspRange, SymbolKind,
 };
 
-pub use crate::ast::types::{literal_value::LiteralValue, none::KclNone};
+pub use crate::ast::types::{
+    condition::{ElseIf, IfExpression},
+    literal_value::LiteralValue,
+    none::KclNone,
+};
 use crate::{
     docs::StdLibFn,
     errors::{KclError, KclErrorDetails},
@@ -30,12 +34,14 @@ use crate::{
     std::{kcl_stdlib::KclStdLibFn, FunctionKind},
 };
 
+mod condition;
 mod literal_value;
 mod none;
 
 /// Position-independent digest of the AST node.
 pub type Digest = [u8; 32];
 
+/// A KCL program top level, or function body.
 #[derive(Debug, Default, Clone, Deserialize, Serialize, PartialEq, ts_rs::TS, JsonSchema, Bake)]
 #[databake(path = kcl_lib::ast::types)]
 #[ts(export)]
@@ -72,6 +78,7 @@ macro_rules! compute_digest {
         }
     };
 }
+pub(crate) use compute_digest;
 
 impl Program {
     compute_digest!(|slf, hasher| {
@@ -82,6 +89,14 @@ impl Program {
         hasher.update(slf.non_code_meta.compute_digest());
     });
 
+    /// Is the last body item an expression?
+    pub fn ends_with_expr(&self) -> bool {
+        let Some(ref last) = self.body.last() else {
+            return false;
+        };
+        matches!(last, BodyItem::ExpressionStatement(_))
+    }
+
     pub fn get_hover_value_for_position(&self, pos: usize, code: &str) -> Option<Hover> {
         // Check if we are in the non code meta.
         if let Some(meta) = self.get_non_code_meta_for_position(pos) {
@@ -501,6 +516,7 @@ pub enum Expr {
     ObjectExpression(Box<ObjectExpression>),
     MemberExpression(Box<MemberExpression>),
     UnaryExpression(Box<UnaryExpression>),
+    IfExpression(Box<IfExpression>),
     None(KclNone),
 }
 
@@ -519,6 +535,7 @@ impl Expr {
             Expr::ObjectExpression(oe) => oe.compute_digest(),
             Expr::MemberExpression(me) => me.compute_digest(),
             Expr::UnaryExpression(ue) => ue.compute_digest(),
+            Expr::IfExpression(e) => e.compute_digest(),
             Expr::None(_) => {
                 let mut hasher = Sha256::new();
                 hasher.update(b"Value::None");
@@ -562,6 +579,7 @@ impl Expr {
             Expr::PipeExpression(pipe_exp) => Some(&pipe_exp.non_code_meta),
             Expr::UnaryExpression(_unary_exp) => None,
             Expr::PipeSubstitution(_pipe_substitution) => None,
+            Expr::IfExpression(_) => None,
             Expr::None(_none) => None,
         }
     }
@@ -584,6 +602,7 @@ impl Expr {
             Expr::TagDeclarator(_) => {}
             Expr::PipeExpression(ref mut pipe_exp) => pipe_exp.replace_value(source_range, new_value),
             Expr::UnaryExpression(ref mut unary_exp) => unary_exp.replace_value(source_range, new_value),
+            Expr::IfExpression(_) => {}
             Expr::PipeSubstitution(_) => {}
             Expr::None(_) => {}
         }
@@ -603,6 +622,7 @@ impl Expr {
             Expr::ObjectExpression(object_expression) => object_expression.start(),
             Expr::MemberExpression(member_expression) => member_expression.start(),
             Expr::UnaryExpression(unary_expression) => unary_expression.start(),
+            Expr::IfExpression(expr) => expr.start(),
             Expr::None(none) => none.start,
         }
     }
@@ -621,6 +641,7 @@ impl Expr {
             Expr::ObjectExpression(object_expression) => object_expression.end(),
             Expr::MemberExpression(member_expression) => member_expression.end(),
             Expr::UnaryExpression(unary_expression) => unary_expression.end(),
+            Expr::IfExpression(expr) => expr.end(),
             Expr::None(none) => none.end,
         }
     }
@@ -639,6 +660,7 @@ impl Expr {
             Expr::ObjectExpression(object_expression) => object_expression.get_hover_value_for_position(pos, code),
             Expr::MemberExpression(member_expression) => member_expression.get_hover_value_for_position(pos, code),
             Expr::UnaryExpression(unary_expression) => unary_expression.get_hover_value_for_position(pos, code),
+            Expr::IfExpression(expr) => expr.get_hover_value_for_position(pos, code),
             // TODO: LSP hover information for values/types. https://github.com/KittyCAD/modeling-app/issues/1126
             Expr::None(_) => None,
             Expr::Literal(_) => None,
@@ -670,11 +692,12 @@ impl Expr {
                 member_expression.rename_identifiers(old_name, new_name)
             }
             Expr::UnaryExpression(ref mut unary_expression) => unary_expression.rename_identifiers(old_name, new_name),
+            Expr::IfExpression(ref mut expr) => expr.rename_identifiers(old_name, new_name),
             Expr::None(_) => {}
         }
     }
 
-    /// Get the constraint level for a value type.
+    /// Get the constraint level for an expression.
     pub fn get_constraint_level(&self) -> ConstraintLevel {
         match self {
             Expr::Literal(literal) => literal.get_constraint_level(),
@@ -692,6 +715,7 @@ impl Expr {
             Expr::ObjectExpression(object_expression) => object_expression.get_constraint_level(),
             Expr::MemberExpression(member_expression) => member_expression.get_constraint_level(),
             Expr::UnaryExpression(unary_expression) => unary_expression.get_constraint_level(),
+            Expr::IfExpression(expr) => expr.get_constraint_level(),
             Expr::None(none) => none.get_constraint_level(),
         }
     }
@@ -720,6 +744,7 @@ pub enum BinaryPart {
     CallExpression(Box<CallExpression>),
     UnaryExpression(Box<UnaryExpression>),
     MemberExpression(Box<MemberExpression>),
+    IfExpression(Box<IfExpression>),
 }
 
 impl From<BinaryPart> for SourceRange {
@@ -743,6 +768,7 @@ impl BinaryPart {
             BinaryPart::CallExpression(ce) => ce.compute_digest(),
             BinaryPart::UnaryExpression(ue) => ue.compute_digest(),
             BinaryPart::MemberExpression(me) => me.compute_digest(),
+            BinaryPart::IfExpression(e) => e.compute_digest(),
         }
     }
 
@@ -755,6 +781,7 @@ impl BinaryPart {
             BinaryPart::CallExpression(call_expression) => call_expression.get_constraint_level(),
             BinaryPart::UnaryExpression(unary_expression) => unary_expression.get_constraint_level(),
             BinaryPart::MemberExpression(member_expression) => member_expression.get_constraint_level(),
+            BinaryPart::IfExpression(e) => e.get_constraint_level(),
         }
     }
 
@@ -772,6 +799,7 @@ impl BinaryPart {
                 unary_expression.replace_value(source_range, new_value)
             }
             BinaryPart::MemberExpression(_) => {}
+            BinaryPart::IfExpression(e) => e.replace_value(source_range, new_value),
         }
     }
 
@@ -783,6 +811,7 @@ impl BinaryPart {
             BinaryPart::CallExpression(call_expression) => call_expression.start(),
             BinaryPart::UnaryExpression(unary_expression) => unary_expression.start(),
             BinaryPart::MemberExpression(member_expression) => member_expression.start(),
+            BinaryPart::IfExpression(e) => e.start(),
         }
     }
 
@@ -794,6 +823,7 @@ impl BinaryPart {
             BinaryPart::CallExpression(call_expression) => call_expression.end(),
             BinaryPart::UnaryExpression(unary_expression) => unary_expression.end(),
             BinaryPart::MemberExpression(member_expression) => member_expression.end(),
+            BinaryPart::IfExpression(e) => e.end(),
         }
     }
 
@@ -809,6 +839,7 @@ impl BinaryPart {
             BinaryPart::CallExpression(call_expression) => call_expression.execute(exec_state, ctx).await,
             BinaryPart::UnaryExpression(unary_expression) => unary_expression.get_result(exec_state, ctx).await,
             BinaryPart::MemberExpression(member_expression) => member_expression.get_result(exec_state),
+            BinaryPart::IfExpression(e) => e.get_result(exec_state, ctx).await,
         }
     }
 
@@ -822,6 +853,7 @@ impl BinaryPart {
             }
             BinaryPart::CallExpression(call_expression) => call_expression.get_hover_value_for_position(pos, code),
             BinaryPart::UnaryExpression(unary_expression) => unary_expression.get_hover_value_for_position(pos, code),
+            BinaryPart::IfExpression(e) => e.get_hover_value_for_position(pos, code),
             BinaryPart::MemberExpression(member_expression) => {
                 member_expression.get_hover_value_for_position(pos, code)
             }
@@ -845,6 +877,7 @@ impl BinaryPart {
             BinaryPart::MemberExpression(ref mut member_expression) => {
                 member_expression.rename_identifiers(old_name, new_name)
             }
+            BinaryPart::IfExpression(ref mut if_expression) => if_expression.rename_identifiers(old_name, new_name),
         }
     }
 }
@@ -1331,7 +1364,7 @@ impl CallExpression {
                 };
 
                 match exec_result {
-                    Ok(()) => {}
+                    Ok(_) => {}
                     Err(err) => {
                         // We need to override the source ranges so we don't get the embedded kcl
                         // function from the stdlib.
@@ -3149,6 +3182,7 @@ async fn inner_execute_pipe_body(
             | Expr::ObjectExpression(_)
             | Expr::MemberExpression(_)
             | Expr::UnaryExpression(_)
+            | Expr::IfExpression(_)
             | Expr::None(_) => {}
         };
         let metadata = Metadata {

src/wasm-lib/kcl/src/ast/types/condition.rs

@@ -0,0 +1,215 @@
+use crate::errors::KclError;
+use crate::executor::BodyType;
+use crate::executor::ExecState;
+use crate::executor::ExecutorContext;
+use crate::executor::KclValue;
+use crate::executor::Metadata;
+use crate::executor::SourceRange;
+use crate::executor::StatementKind;
+
+use super::compute_digest;
+use super::impl_value_meta;
+use super::ConstraintLevel;
+use super::Hover;
+use super::{Digest, Expr};
+use databake::*;
+use schemars::JsonSchema;
+use serde::{Deserialize, Serialize};
+use sha2::{Digest as DigestTrait, Sha256};
+
+// TODO: This should be its own type, similar to Program,
+// but guaranteed to have an Expression as its final item.
+// https://github.com/KittyCAD/modeling-app/issues/4015
+type IfBlock = crate::ast::types::Program;
+
+#[derive(Debug, Clone, Deserialize, Serialize, PartialEq, ts_rs::TS, JsonSchema, Bake)]
+#[databake(path = kcl_lib::ast::types)]
+#[ts(export)]
+#[serde(tag = "type")]
+pub struct IfExpression {
+    pub start: usize,
+    pub end: usize,
+    pub cond: Box<Expr>,
+    pub then_val: Box<IfBlock>,
+    pub else_ifs: Vec<ElseIf>,
+    pub final_else: Box<IfBlock>,
+
+    pub digest: Option<Digest>,
+}
+
+#[derive(Debug, Clone, Deserialize, Serialize, PartialEq, ts_rs::TS, JsonSchema, Bake)]
+#[databake(path = kcl_lib::ast::types)]
+#[ts(export)]
+#[serde(tag = "type")]
+pub struct ElseIf {
+    pub start: usize,
+    pub end: usize,
+    pub cond: Expr,
+    pub then_val: Box<IfBlock>,
+
+    pub digest: Option<Digest>,
+}
+
+// Source code metadata
+
+impl_value_meta!(IfExpression);
+impl_value_meta!(ElseIf);
+
+impl IfExpression {
+    compute_digest!(|slf, hasher| {
+        hasher.update(slf.cond.compute_digest());
+        hasher.update(slf.then_val.compute_digest());
+        for else_if in &mut slf.else_ifs {
+            hasher.update(else_if.compute_digest());
+        }
+        hasher.update(slf.final_else.compute_digest());
+    });
+    fn source_ranges(&self) -> Vec<SourceRange> {
+        vec![SourceRange::from(self)]
+    }
+}
+
+impl From<IfExpression> for Metadata {
+    fn from(value: IfExpression) -> Self {
+        Self {
+            source_range: value.into(),
+        }
+    }
+}
+
+impl From<ElseIf> for Metadata {
+    fn from(value: ElseIf) -> Self {
+        Self {
+            source_range: value.into(),
+        }
+    }
+}
+impl From<&IfExpression> for Metadata {
+    fn from(value: &IfExpression) -> Self {
+        Self {
+            source_range: value.into(),
+        }
+    }
+}
+
+impl From<&ElseIf> for Metadata {
+    fn from(value: &ElseIf) -> Self {
+        Self {
+            source_range: value.into(),
+        }
+    }
+}
+
+impl ElseIf {
+    compute_digest!(|slf, hasher| {
+        hasher.update(slf.cond.compute_digest());
+        hasher.update(slf.then_val.compute_digest());
+    });
+    #[allow(dead_code)]
+    fn source_ranges(&self) -> Vec<SourceRange> {
+        vec![SourceRange([self.start, self.end])]
+    }
+}
+
+// Execution
+
+impl IfExpression {
+    #[async_recursion::async_recursion]
+    pub async fn get_result(&self, exec_state: &mut ExecState, ctx: &ExecutorContext) -> Result<KclValue, KclError> {
+        // Check the `if` branch.
+        let cond = ctx
+            .execute_expr(&self.cond, exec_state, &Metadata::from(self), StatementKind::Expression)
+            .await?
+            .get_bool()?;
+        if cond {
+            let block_result = ctx.inner_execute(&self.then_val, exec_state, BodyType::Block).await?;
+            // Block must end in an expression, so this has to be Some.
+            // Enforced by the parser.
+            // See https://github.com/KittyCAD/modeling-app/issues/4015
+            return Ok(block_result.unwrap());
+        }
+
+        // Check any `else if` branches.
+        for else_if in &self.else_ifs {
+            let cond = ctx
+                .execute_expr(
+                    &else_if.cond,
+                    exec_state,
+                    &Metadata::from(self),
+                    StatementKind::Expression,
+                )
+                .await?
+                .get_bool()?;
+            if cond {
+                let block_result = ctx
+                    .inner_execute(&else_if.then_val, exec_state, BodyType::Block)
+                    .await?;
+                // Block must end in an expression, so this has to be Some.
+                // Enforced by the parser.
+                // See https://github.com/KittyCAD/modeling-app/issues/4015
+                return Ok(block_result.unwrap());
+            }
+        }
+
+        // Run the final `else` branch.
+        ctx.inner_execute(&self.final_else, exec_state, BodyType::Block)
+            .await
+            .map(|expr| expr.unwrap())
+    }
+}
+
+// IDE support and refactors
+
+impl IfExpression {
+    pub fn get_hover_value_for_position(&self, pos: usize, code: &str) -> Option<Hover> {
+        self.cond
+            .get_hover_value_for_position(pos, code)
+            .or_else(|| self.then_val.get_hover_value_for_position(pos, code))
+            .or_else(|| {
+                self.else_ifs
+                    .iter()
+                    .find_map(|else_if| else_if.get_hover_value_for_position(pos, code))
+            })
+            .or_else(|| self.final_else.get_hover_value_for_position(pos, code))
+    }
+
+    /// Rename all identifiers that have the old name to the new given name.
+    pub fn rename_identifiers(&mut self, old_name: &str, new_name: &str) {
+        self.cond.rename_identifiers(old_name, new_name);
+        self.then_val.rename_identifiers(old_name, new_name);
+        for else_if in &mut self.else_ifs {
+            else_if.rename_identifiers(old_name, new_name);
+        }
+        self.final_else.rename_identifiers(old_name, new_name);
+    }
+    /// Get the constraint level.
+    pub fn get_constraint_level(&self) -> ConstraintLevel {
+        ConstraintLevel::Full {
+            source_ranges: self.source_ranges(),
+        }
+    }
+    pub fn replace_value(&mut self, source_range: SourceRange, new_value: Expr) {
+        self.cond.replace_value(source_range, new_value.clone());
+        for else_if in &mut self.else_ifs {
+            else_if.cond.replace_value(source_range, new_value.clone());
+        }
+    }
+}
+
+impl ElseIf {
+    fn get_hover_value_for_position(&self, pos: usize, code: &str) -> Option<Hover> {
+        self.cond
+            .get_hover_value_for_position(pos, code)
+            .or_else(|| self.then_val.get_hover_value_for_position(pos, code))
+    }
+    /// Rename all identifiers that have the old name to the new given name.
+    fn rename_identifiers(&mut self, old_name: &str, new_name: &str) {
+        self.cond.rename_identifiers(old_name, new_name);
+        self.then_val.rename_identifiers(old_name, new_name);
+    }
+}
+
+// Linting
+
+impl IfExpression {}
+impl ElseIf {}

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

@@ -81,6 +81,8 @@ impl StdLibFnArg {
         } else if self.type_ == "TagIdentifier" && self.required {
             // TODO: actually use the ast to populate this.
             return Ok(Some((index, format!("${{{}:{}}}", index, "myTag"))));
+        } else if self.type_ == "[KclValue]" && self.required {
+            return Ok(Some((index, format!("${{{}:{}}}", index, "[0..9]"))));
         }
         get_autocomplete_snippet_from_schema(&self.schema.schema.clone().into(), index)
     }
@@ -903,6 +905,13 @@ mod tests {
         );
     }
 
+    #[test]
+    fn get_autocomplete_snippet_map() {
+        let map_fn: Box<dyn StdLibFn> = Box::new(crate::std::array::Map);
+        let snippet = map_fn.to_autocomplete_snippet().unwrap();
+        assert_eq!(snippet, r#"map(${0:[0..9]})${}"#);
+    }
+
     #[test]
     fn get_autocomplete_snippet_pattern_linear_2d() {
         let pattern_fn: Box<dyn StdLibFn> = Box::new(crate::std::patterns::PatternLinear2D);
@@ -916,4 +925,18 @@ mod tests {
 }, ${4:%})${}"#
         );
     }
+
+    // We want to test the snippets we compile at lsp start.
+    #[test]
+    fn get_all_stdlib_autocomplete_snippets() {
+        let stdlib = crate::std::StdLib::new();
+        crate::lsp::kcl::get_completions_from_stdlib(&stdlib).unwrap();
+    }
+
+    // We want to test the signatures we compile at lsp start.
+    #[test]
+    fn get_all_stdlib_signatures() {
+        let stdlib = crate::std::StdLib::new();
+        crate::lsp::kcl::get_signatures_from_stdlib(&stdlib).unwrap();
+    }
 }

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

@@ -776,6 +776,25 @@ impl From<KclValue> for Vec<SourceRange> {
     }
 }
 
+impl From<&KclValue> for Vec<SourceRange> {
+    fn from(item: &KclValue) -> Self {
+        match item {
+            KclValue::UserVal(u) => u.meta.iter().map(|m| m.source_range).collect(),
+            KclValue::TagDeclarator(ref t) => vec![t.into()],
+            KclValue::TagIdentifier(t) => t.meta.iter().map(|m| m.source_range).collect(),
+            KclValue::Solid(e) => e.meta.iter().map(|m| m.source_range).collect(),
+            KclValue::Solids { value } => value
+                .iter()
+                .flat_map(|eg| eg.meta.iter().map(|m| m.source_range))
+                .collect(),
+            KclValue::ImportedGeometry(i) => i.meta.iter().map(|m| m.source_range).collect(),
+            KclValue::Function { meta, .. } => meta.iter().map(|m| m.source_range).collect(),
+            KclValue::Plane(p) => p.meta.iter().map(|m| m.source_range).collect(),
+            KclValue::Face(f) => f.meta.iter().map(|m| m.source_range).collect(),
+        }
+    }
+}
+
 impl KclValue {
     pub fn get_json_value(&self) -> Result<serde_json::Value, KclError> {
         if let KclValue::UserVal(user_val) = self {
@@ -906,6 +925,23 @@ impl KclValue {
         }
     }
 
+    /// If this KCL value is a bool, retrieve it.
+    pub fn get_bool(&self) -> Result<bool, KclError> {
+        let Self::UserVal(uv) = self else {
+            return Err(KclError::Type(KclErrorDetails {
+                source_ranges: self.into(),
+                message: format!("Expected bool, found {}", self.human_friendly_type()),
+            }));
+        };
+        let JValue::Bool(b) = uv.value else {
+            return Err(KclError::Type(KclErrorDetails {
+                source_ranges: self.into(),
+                message: format!("Expected bool, found {}", human_friendly_type(&uv.value)),
+            }));
+        };
+        Ok(b)
+    }
+
     /// If this memory item is a function, call it with the given arguments, return its val as Ok.
     /// If it's not a function, return Err.
     pub async fn call_fn(
@@ -1613,6 +1649,22 @@ impl ExtrudeSurface {
     }
 }
 
+/// The type of ExecutorContext being used
+#[derive(PartialEq, Debug, Default, Clone)]
+pub enum ContextType {
+    /// Live engine connection
+    #[default]
+    Live,
+
+    /// Completely mocked connection
+    /// Mock mode is only for the modeling app when they just want to mock engine calls and not
+    /// actually make them.
+    Mock,
+
+    /// Handled by some other interpreter/conversion system
+    MockCustomForwarded,
+}
+
 /// The executor context.
 /// Cloning will return another handle to the same engine connection/session,
 /// as this uses `Arc` under the hood.
@@ -1622,9 +1674,7 @@ pub struct ExecutorContext {
     pub fs: Arc<FileManager>,
     pub stdlib: Arc<StdLib>,
     pub settings: ExecutorSettings,
-    /// Mock mode is only for the modeling app when they just want to mock engine calls and not
-    /// actually make them.
-    pub is_mock: bool,
+    pub context_type: ContextType,
 }
 
 /// The executor settings.
@@ -1734,10 +1784,14 @@ impl ExecutorContext {
             fs: Arc::new(FileManager::new()),
             stdlib: Arc::new(StdLib::new()),
             settings,
-            is_mock: false,
+            context_type: ContextType::Live,
         })
     }
 
+    pub fn is_mock(&self) -> bool {
+        self.context_type == ContextType::Mock || self.context_type == ContextType::MockCustomForwarded
+    }
+
     /// For executing unit tests.
     #[cfg(not(target_arch = "wasm32"))]
     pub async fn new_for_unit_test(units: UnitLength, engine_addr: Option<String>) -> Result<Self> {
@@ -1844,20 +1898,22 @@ impl ExecutorContext {
         program: &crate::ast::types::Program,
         exec_state: &mut ExecState,
         body_type: BodyType,
-    ) -> Result<(), KclError> {
+    ) -> Result<Option<KclValue>, KclError> {
+        let mut last_expr = None;
         // Iterate over the body of the program.
         for statement in &program.body {
             match statement {
                 BodyItem::ExpressionStatement(expression_statement) => {
                     let metadata = Metadata::from(expression_statement);
-                    // Discard return value.
-                    self.execute_expr(
-                        &expression_statement.expression,
-                        exec_state,
-                        &metadata,
-                        StatementKind::Expression,
-                    )
-                    .await?;
+                    last_expr = Some(
+                        self.execute_expr(
+                            &expression_statement.expression,
+                            exec_state,
+                            &metadata,
+                            StatementKind::Expression,
+                        )
+                        .await?,
+                    );
                 }
                 BodyItem::VariableDeclaration(variable_declaration) => {
                     for declaration in &variable_declaration.declarations {
@@ -1875,6 +1931,7 @@ impl ExecutorContext {
                             .await?;
                         exec_state.memory.add(&var_name, memory_item, source_range)?;
                     }
+                    last_expr = None;
                 }
                 BodyItem::ReturnStatement(return_statement) => {
                     let metadata = Metadata::from(return_statement);
@@ -1887,6 +1944,7 @@ impl ExecutorContext {
                         )
                         .await?;
                     exec_state.memory.return_ = Some(value);
+                    last_expr = None;
                 }
             }
         }
@@ -1903,7 +1961,7 @@ impl ExecutorContext {
                 .await?;
         }
 
-        Ok(())
+        Ok(last_expr)
     }
 
     pub async fn execute_expr<'a>(
@@ -1960,6 +2018,7 @@ impl ExecutorContext {
             Expr::ObjectExpression(object_expression) => object_expression.execute(exec_state, self).await?,
             Expr::MemberExpression(member_expression) => member_expression.get_result(exec_state)?,
             Expr::UnaryExpression(unary_expression) => unary_expression.get_result(exec_state, self).await?,
+            Expr::IfExpression(expr) => expr.get_result(exec_state, self).await?,
         };
         Ok(item)
     }
@@ -2088,7 +2147,7 @@ pub(crate) async fn call_user_defined_function(
         (result, fn_memory)
     };
 
-    result.map(|()| fn_memory.return_)
+    result.map(|_| fn_memory.return_)
 }
 
 pub enum StatementKind<'a> {
@@ -2114,7 +2173,7 @@ mod tests {
             fs: Arc::new(crate::fs::FileManager::new()),
             stdlib: Arc::new(crate::std::StdLib::new()),
             settings: Default::default(),
-            is_mock: true,
+            context_type: ContextType::Mock,
         };
         let exec_state = ctx.run(&program, None).await?;
 

src/wasm-lib/kcl/src/parser/parser_impl.rs

@@ -10,11 +10,11 @@ use winnow::{
 
 use crate::{
     ast::types::{
-        ArrayExpression, BinaryExpression, BinaryOperator, BinaryPart, BodyItem, CallExpression, CommentStyle, Expr,
-        ExpressionStatement, FnArgPrimitive, FnArgType, FunctionExpression, Identifier, Literal, LiteralIdentifier,
-        LiteralValue, MemberExpression, MemberObject, NonCodeMeta, NonCodeNode, NonCodeValue, ObjectExpression,
-        ObjectProperty, Parameter, PipeExpression, PipeSubstitution, Program, ReturnStatement, TagDeclarator,
-        UnaryExpression, UnaryOperator, VariableDeclaration, VariableDeclarator, VariableKind,
+        ArrayExpression, BinaryExpression, BinaryOperator, BinaryPart, BodyItem, CallExpression, CommentStyle, ElseIf,
+        Expr, ExpressionStatement, FnArgPrimitive, FnArgType, FunctionExpression, Identifier, IfExpression, Literal,
+        LiteralIdentifier, LiteralValue, MemberExpression, MemberObject, NonCodeMeta, NonCodeNode, NonCodeValue,
+        ObjectExpression, ObjectProperty, Parameter, PipeExpression, PipeSubstitution, Program, ReturnStatement,
+        TagDeclarator, UnaryExpression, UnaryOperator, VariableDeclaration, VariableDeclarator, VariableKind,
     },
     errors::{KclError, KclErrorDetails},
     executor::SourceRange,
@@ -359,6 +359,7 @@ fn operand(i: TokenSlice) -> PResult<BinaryPart> {
                 Expr::BinaryExpression(x) => BinaryPart::BinaryExpression(x),
                 Expr::CallExpression(x) => BinaryPart::CallExpression(x),
                 Expr::MemberExpression(x) => BinaryPart::MemberExpression(x),
+                Expr::IfExpression(x) => BinaryPart::IfExpression(x),
             };
             Ok(expr)
         })
@@ -670,6 +671,119 @@ fn pipe_sub(i: TokenSlice) -> PResult<PipeSubstitution> {
     .parse_next(i)
 }
 
+fn else_if(i: TokenSlice) -> PResult<ElseIf> {
+    let start = any
+        .try_map(|token: Token| {
+            if matches!(token.token_type, TokenType::Keyword) && token.value == "else" {
+                Ok(token.start)
+            } else {
+                Err(KclError::Syntax(KclErrorDetails {
+                    source_ranges: token.as_source_ranges(),
+                    message: format!("{} is not 'else'", token.value.as_str()),
+                }))
+            }
+        })
+        .context(expected("the 'else' keyword"))
+        .parse_next(i)?;
+    ignore_whitespace(i);
+    let _if = any
+        .try_map(|token: Token| {
+            if matches!(token.token_type, TokenType::Keyword) && token.value == "if" {
+                Ok(token.start)
+            } else {
+                Err(KclError::Syntax(KclErrorDetails {
+                    source_ranges: token.as_source_ranges(),
+                    message: format!("{} is not 'if'", token.value.as_str()),
+                }))
+            }
+        })
+        .context(expected("the 'if' keyword"))
+        .parse_next(i)?;
+    ignore_whitespace(i);
+    let cond = expression(i)?;
+    ignore_whitespace(i);
+    let _ = open_brace(i)?;
+    let then_val = program
+        .verify(|block| block.ends_with_expr())
+        .parse_next(i)
+        .map(Box::new)?;
+    ignore_whitespace(i);
+    let end = close_brace(i)?.end;
+    ignore_whitespace(i);
+    Ok(ElseIf {
+        start,
+        end,
+        cond,
+        then_val,
+        digest: Default::default(),
+    })
+}
+
+fn if_expr(i: TokenSlice) -> PResult<IfExpression> {
+    let start = any
+        .try_map(|token: Token| {
+            if matches!(token.token_type, TokenType::Keyword) && token.value == "if" {
+                Ok(token.start)
+            } else {
+                Err(KclError::Syntax(KclErrorDetails {
+                    source_ranges: token.as_source_ranges(),
+                    message: format!("{} is not 'if'", token.value.as_str()),
+                }))
+            }
+        })
+        .context(expected("the 'if' keyword"))
+        .parse_next(i)?;
+    let _ = whitespace(i)?;
+    let cond = expression(i).map(Box::new)?;
+    let _ = whitespace(i)?;
+    let _ = open_brace(i)?;
+    ignore_whitespace(i);
+    let then_val = program
+        .verify(|block| block.ends_with_expr())
+        .parse_next(i)
+        .map_err(|e| e.cut())
+        .map(Box::new)?;
+    ignore_whitespace(i);
+    let _ = close_brace(i)?;
+    ignore_whitespace(i);
+    let else_ifs = repeat(0.., else_if).parse_next(i)?;
+
+    ignore_whitespace(i);
+    let _ = any
+        .try_map(|token: Token| {
+            if matches!(token.token_type, TokenType::Keyword) && token.value == "else" {
+                Ok(token.start)
+            } else {
+                Err(KclError::Syntax(KclErrorDetails {
+                    source_ranges: token.as_source_ranges(),
+                    message: format!("{} is not 'else'", token.value.as_str()),
+                }))
+            }
+        })
+        .context(expected("the 'else' keyword"))
+        .parse_next(i)?;
+    ignore_whitespace(i);
+    let _ = open_brace(i)?;
+    ignore_whitespace(i);
+
+    let final_else = program
+        .verify(|block| block.ends_with_expr())
+        .parse_next(i)
+        .map_err(|e| e.cut())
+        .map(Box::new)?;
+    ignore_whitespace(i);
+    let end = close_brace(i)?.end;
+    Ok(IfExpression {
+        start,
+        end,
+        cond,
+        then_val,
+        else_ifs,
+        final_else,
+        digest: Default::default(),
+    })
+}
+
 // Looks like
 // (arg0, arg1) => {
 //     const x = arg0 + arg1;
@@ -1069,6 +1183,7 @@ fn expr_allowed_in_pipe_expr(i: TokenSlice) -> PResult<Expr> {
         object.map(Box::new).map(Expr::ObjectExpression),
         pipe_sub.map(Box::new).map(Expr::PipeSubstitution),
         function_expression.map(Box::new).map(Expr::FunctionExpression),
+        if_expr.map(Box::new).map(Expr::IfExpression),
         unnecessarily_bracketed,
     ))
     .context(expected("a KCL expression (but not a pipe expression)"))
@@ -3147,6 +3262,42 @@ e
         let _arr = array_elem_by_elem(&mut sl).unwrap();
     }
 
+    #[test]
+    fn basic_if_else() {
+        let some_program_string = "if true {
+            3
+        } else {
+            4
+        }";
+        let tokens = crate::token::lexer(some_program_string).unwrap();
+        let mut sl: &[Token] = &tokens;
+        let _res = if_expr(&mut sl).unwrap();
+    }
+
+    #[test]
+    fn basic_else_if() {
+        let some_program_string = "else if true {
+            4
+        }";
+        let tokens = crate::token::lexer(some_program_string).unwrap();
+        let mut sl: &[Token] = &tokens;
+        let _res = else_if(&mut sl).unwrap();
+    }
+
+    #[test]
+    fn basic_if_else_if() {
+        let some_program_string = "if true {
+            3  
+        } else if true {
+            4
+        } else {
+            5
+        }";
+        let tokens = crate::token::lexer(some_program_string).unwrap();
+        let mut sl: &[Token] = &tokens;
+        let _res = if_expr(&mut sl).unwrap();
+    }
+
     #[test]
     fn test_keyword_ok_in_fn_args_return() {
         let some_program_string = r#"fn thing = (param) => {
@@ -3511,6 +3662,24 @@ const sketch001 = startSketchOn('XY')
 const my14 = 4 ^ 2 - 3 ^ 2 * 2
 "#
     );
+    snapshot_test!(
+        bc,
+        r#"const x = if true {
+            3
+        } else {
+            4
+        }"#
+    );
+    snapshot_test!(
+        bd,
+        r#"const x = if true {
+            3
+        } else if func(radius) {
+            4
+        } else {
+            5
+        }"#
+    );
 }
 
 #[allow(unused)]

src/wasm-lib/kcl/src/parser/snapshots/kcl_lib__parser__parser_impl__snapshot_tests__bc.snap

@@ -0,0 +1,112 @@
+---
+source: kcl/src/parser/parser_impl.rs
+expression: actual
+---
+{
+  "start": 0,
+  "end": 74,
+  "body": [
+    {
+      "type": "VariableDeclaration",
+      "type": "VariableDeclaration",
+      "start": 0,
+      "end": 74,
+      "declarations": [
+        {
+          "type": "VariableDeclarator",
+          "start": 6,
+          "end": 74,
+          "id": {
+            "type": "Identifier",
+            "start": 6,
+            "end": 7,
+            "name": "x",
+            "digest": null
+          },
+          "init": {
+            "type": "IfExpression",
+            "type": "IfExpression",
+            "start": 10,
+            "end": 74,
+            "cond": {
+              "type": "Literal",
+              "type": "Literal",
+              "start": 13,
+              "end": 17,
+              "value": true,
+              "raw": "true",
+              "digest": null
+            },
+            "then_val": {
+              "start": 32,
+              "end": 42,
+              "body": [
+                {
+                  "type": "ExpressionStatement",
+                  "type": "ExpressionStatement",
+                  "start": 32,
+                  "end": 33,
+                  "expression": {
+                    "type": "Literal",
+                    "type": "Literal",
+                    "start": 32,
+                    "end": 33,
+                    "value": 3,
+                    "raw": "3",
+                    "digest": null
+                  },
+                  "digest": null
+                }
+              ],
+              "nonCodeMeta": {
+                "nonCodeNodes": {},
+                "start": [],
+                "digest": null
+              },
+              "digest": null
+            },
+            "else_ifs": [],
+            "final_else": {
+              "start": 63,
+              "end": 73,
+              "body": [
+                {
+                  "type": "ExpressionStatement",
+                  "type": "ExpressionStatement",
+                  "start": 63,
+                  "end": 64,
+                  "expression": {
+                    "type": "Literal",
+                    "type": "Literal",
+                    "start": 63,
+                    "end": 64,
+                    "value": 4,
+                    "raw": "4",
+                    "digest": null
+                  },
+                  "digest": null
+                }
+              ],
+              "nonCodeMeta": {
+                "nonCodeNodes": {},
+                "start": [],
+                "digest": null
+              },
+              "digest": null
+            },
+            "digest": null
+          },
+          "digest": null
+        }
+      ],
+      "kind": "const",
+      "digest": null
+    }
+  ],
+  "nonCodeMeta": {
+    "nonCodeNodes": {},
+    "start": [],
+    "digest": null
+  },
+  "digest": null
+}

src/wasm-lib/kcl/src/parser/snapshots/kcl_lib__parser__parser_impl__snapshot_tests__bd.snap

@@ -0,0 +1,172 @@
+---
+source: kcl/src/parser/parser_impl.rs
+expression: actual
+---
+{
+  "start": 0,
+  "end": 121,
+  "body": [
+    {
+      "type": "VariableDeclaration",
+      "type": "VariableDeclaration",
+      "start": 0,
+      "end": 121,
+      "declarations": [
+        {
+          "type": "VariableDeclarator",
+          "start": 6,
+          "end": 121,
+          "id": {
+            "type": "Identifier",
+            "start": 6,
+            "end": 7,
+            "name": "x",
+            "digest": null
+          },
+          "init": {
+            "type": "IfExpression",
+            "type": "IfExpression",
+            "start": 10,
+            "end": 121,
+            "cond": {
+              "type": "Literal",
+              "type": "Literal",
+              "start": 13,
+              "end": 17,
+              "value": true,
+              "raw": "true",
+              "digest": null
+            },
+            "then_val": {
+              "start": 32,
+              "end": 42,
+              "body": [
+                {
+                  "type": "ExpressionStatement",
+                  "type": "ExpressionStatement",
+                  "start": 32,
+                  "end": 33,
+                  "expression": {
+                    "type": "Literal",
+                    "type": "Literal",
+                    "start": 32,
+                    "end": 33,
+                    "value": 3,
+                    "raw": "3",
+                    "digest": null
+                  },
+                  "digest": null
+                }
+              ],
+              "nonCodeMeta": {
+                "nonCodeNodes": {},
+                "start": [],
+                "digest": null
+              },
+              "digest": null
+            },
+            "else_ifs": [
+              {
+                "type": "ElseIf",
+                "start": 44,
+                "end": 90,
+                "cond": {
+                  "type": "CallExpression",
+                  "type": "CallExpression",
+                  "start": 52,
+                  "end": 64,
+                  "callee": {
+                    "type": "Identifier",
+                    "start": 52,
+                    "end": 56,
+                    "name": "func",
+                    "digest": null
+                  },
+                  "arguments": [
+                    {
+                      "type": "Identifier",
+                      "type": "Identifier",
+                      "start": 57,
+                      "end": 63,
+                      "name": "radius",
+                      "digest": null
+                    }
+                  ],
+                  "optional": false,
+                  "digest": null
+                },
+                "then_val": {
+                  "start": 65,
+                  "end": 89,
+                  "body": [
+                    {
+                      "type": "ExpressionStatement",
+                      "type": "ExpressionStatement",
+                      "start": 79,
+                      "end": 80,
+                      "expression": {
+                        "type": "Literal",
+                        "type": "Literal",
+                        "start": 79,
+                        "end": 80,
+                        "value": 4,
+                        "raw": "4",
+                        "digest": null
+                      },
+                      "digest": null
+                    }
+                  ],
+                  "nonCodeMeta": {
+                    "nonCodeNodes": {},
+                    "start": [],
+                    "digest": null
+                  },
+                  "digest": null
+                },
+                "digest": null
+              }
+            ],
+            "final_else": {
+              "start": 110,
+              "end": 120,
+              "body": [
+                {
+                  "type": "ExpressionStatement",
+                  "type": "ExpressionStatement",
+                  "start": 110,
+                  "end": 111,
+                  "expression": {
+                    "type": "Literal",
+                    "type": "Literal",
+                    "start": 110,
+                    "end": 111,
+                    "value": 5,
+                    "raw": "5",
+                    "digest": null
+                  },
+                  "digest": null
+                }
+              ],
+              "nonCodeMeta": {
+                "nonCodeNodes": {},
+                "start": [],
+                "digest": null
+              },
+              "digest": null
+            },
+            "digest": null
+          },
+          "digest": null
+        }
+      ],
+      "kind": "const",
+      "digest": null
+    }
+  ],
+  "nonCodeMeta": {
+    "nonCodeNodes": {},
+    "start": [],
+    "digest": null
+  },
+  "digest": null
+}

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

@@ -4,13 +4,14 @@ use anyhow::Result;
 use kcmc::{websocket::OkWebSocketResponseData, ModelingCmd};
 use kittycad_modeling_cmds as kcmc;
 use serde::de::DeserializeOwned;
+use serde_json::Value as JValue;
 
 use crate::{
     ast::types::{parse_json_number_as_f64, TagDeclarator},
     errors::{KclError, KclErrorDetails},
     executor::{
         ExecState, ExecutorContext, ExtrudeSurface, KclValue, Metadata, Sketch, SketchSet, SketchSurface, Solid,
-        SolidSet, SourceRange, TagIdentifier,
+        SolidSet, SourceRange, TagIdentifier, UserVal,
     },
     std::{shapes::SketchOrSurface, sketch::FaceTag, FnAsArg},
 };
@@ -43,7 +44,7 @@ impl Args {
                 fs: Arc::new(crate::fs::FileManager::new()),
                 stdlib: Arc::new(crate::std::StdLib::new()),
                 settings: Default::default(),
-                is_mock: true,
+                context_type: crate::executor::ContextType::Mock,
             },
         })
     }
@@ -497,18 +498,6 @@ where
     }
 }
 
-impl<'a> FromArgs<'a> for KclValue {
-    fn from_args(args: &'a Args, i: usize) -> Result<Self, KclError> {
-        let Some(v) = args.args.get(i) else {
-            return Err(KclError::Semantic(KclErrorDetails {
-                message: format!("Argument at index {i} was missing",),
-                source_ranges: vec![args.source_range],
-            }));
-        };
-        Ok(v.to_owned())
-    }
-}
-
 impl<'a, T> FromArgs<'a> for Option<T>
 where
     T: FromKclValue<'a> + Sized,
@@ -587,6 +576,20 @@ impl<'a> FromKclValue<'a> for i64 {
     }
 }
 
+impl<'a> FromKclValue<'a> for UserVal {
+    fn from_mem_item(arg: &'a KclValue) -> Option<Self> {
+        arg.as_user_val().map(|x| x.to_owned())
+    }
+}
+
+impl<'a> FromKclValue<'a> for Vec<JValue> {
+    fn from_mem_item(arg: &'a KclValue) -> Option<Self> {
+        arg.as_user_val()
+            .and_then(|uv| uv.value.as_array())
+            .map(ToOwned::to_owned)
+    }
+}
+
 impl<'a> FromKclValue<'a> for TagDeclarator {
     fn from_mem_item(arg: &'a KclValue) -> Option<Self> {
         arg.get_tag_declarator().ok()
@@ -599,6 +602,12 @@ impl<'a> FromKclValue<'a> for TagIdentifier {
     }
 }
 
+impl<'a> FromKclValue<'a> for KclValue {
+    fn from_mem_item(arg: &'a KclValue) -> Option<Self> {
+        Some(arg.clone())
+    }
+}
+
 macro_rules! impl_from_arg_via_json {
     ($typ:path) => {
         impl<'a> FromKclValue<'a> for $typ {
@@ -609,6 +618,15 @@ macro_rules! impl_from_arg_via_json {
     };
 }
 
+impl<'a, T> FromKclValue<'a> for Vec<T>
+where
+    T: serde::de::DeserializeOwned + FromKclValue<'a>,
+{
+    fn from_mem_item(arg: &'a KclValue) -> Option<Self> {
+        from_user_val(arg)
+    }
+}
+
 macro_rules! impl_from_arg_for_array {
     ($n:literal) => {
         impl<'a, T> FromKclValue<'a> for [T; $n]
@@ -722,23 +740,3 @@ impl<'a> FromKclValue<'a> for SketchSurface {
         }
     }
 }
-
-impl<'a> FromKclValue<'a> for Vec<Sketch> {
-    fn from_mem_item(arg: &'a KclValue) -> Option<Self> {
-        let KclValue::UserVal(uv) = arg else {
-            return None;
-        };
-
-        uv.get::<Vec<Sketch>>().map(|x| x.0)
-    }
-}
-
-impl<'a> FromKclValue<'a> for Vec<u64> {
-    fn from_mem_item(arg: &'a KclValue) -> Option<Self> {
-        let KclValue::UserVal(uv) = arg else {
-            return None;
-        };
-
-        uv.get::<Vec<u64>>().map(|x| x.0)
-    }
-}

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

@@ -1,4 +1,5 @@
 use derive_docs::stdlib;
+use serde_json::Value as JValue;
 
 use super::{args::FromArgs, Args, FnAsArg};
 use crate::{
@@ -7,8 +8,96 @@ use crate::{
     function_param::FunctionParam,
 };
 
+/// Apply a function to each element of an array.
+pub async fn map(exec_state: &mut ExecState, args: Args) -> Result<KclValue, KclError> {
+    let (array, f): (Vec<JValue>, FnAsArg<'_>) = FromArgs::from_args(&args, 0)?;
+    let array: Vec<KclValue> = array
+        .into_iter()
+        .map(|jval| {
+            KclValue::UserVal(UserVal {
+                value: jval,
+                meta: vec![args.source_range.into()],
+            })
+        })
+        .collect();
+    let map_fn = FunctionParam {
+        inner: f.func,
+        fn_expr: f.expr,
+        meta: vec![args.source_range.into()],
+        ctx: args.ctx.clone(),
+        memory: *f.memory,
+    };
+    let new_array = inner_map(array, map_fn, exec_state, &args).await?;
+    let uv = UserVal::new(vec![args.source_range.into()], new_array);
+    Ok(KclValue::UserVal(uv))
+}
+
+/// Apply a function to every element of a list.
+///
+/// Given a list like `[a, b, c]`, and a function like `f`, returns
+/// `[f(a), f(b), f(c)]`
+/// ```no_run
+/// const r = 10 // radius
+/// fn drawCircle = (id) => {
+///   return startSketchOn("XY")
+///     |> circle({ center: [id * 2 * r, 0], radius: r}, %)
+/// }
+///
+/// // Call `drawCircle`, passing in each element of the array.
+/// // The outputs from each `drawCircle` form a new array,
+/// // which is the return value from `map`.
+/// const circles = map(
+///   [1..3],
+///   drawCircle
+/// )
+/// ```
+/// ```no_run
+/// const r = 10 // radius
+/// // Call `map`, using an anonymous function instead of a named one.
+/// const circles = map(
+///   [1..3],
+///   (id) => {
+///     return startSketchOn("XY")
+///       |> circle({ center: [id * 2 * r, 0], radius: r}, %)
+///   }
+/// )
+/// ```
+#[stdlib {
+    name = "map",
+}]
+async fn inner_map<'a>(
+    array: Vec<KclValue>,
+    map_fn: FunctionParam<'a>,
+    exec_state: &mut ExecState,
+    args: &'a Args,
+) -> Result<Vec<KclValue>, KclError> {
+    let mut new_array = Vec::with_capacity(array.len());
+    for elem in array {
+        let new_elem = call_map_closure(elem, &map_fn, args.source_range, exec_state).await?;
+        new_array.push(new_elem);
+    }
+    Ok(new_array)
+}
+
+async fn call_map_closure<'a>(
+    input: KclValue,
+    map_fn: &FunctionParam<'a>,
+    source_range: SourceRange,
+    exec_state: &mut ExecState,
+) -> Result<KclValue, KclError> {
+    let output = map_fn.call(exec_state, vec![input]).await?;
+    let source_ranges = vec![source_range];
+    let output = output.ok_or_else(|| {
+        KclError::Semantic(KclErrorDetails {
+            message: "Map function must return a value".to_string(),
+            source_ranges,
+        })
+    })?;
+    Ok(output)
+}
+
 /// For each item in an array, update a value.
-pub async fn array_reduce(exec_state: &mut ExecState, args: Args) -> Result<KclValue, KclError> {
+pub async fn reduce(exec_state: &mut ExecState, args: Args) -> Result<KclValue, KclError> {
     let (array, start, f): (Vec<u64>, Sketch, FnAsArg<'_>) = FromArgs::from_args(&args, 0)?;
     let reduce_fn = FunctionParam {
         inner: f.func,
@@ -17,7 +106,7 @@ pub async fn array_reduce(exec_state: &mut ExecState, args: Args) -> Result<KclV
         ctx: args.ctx.clone(),
         memory: *f.memory,
     };
-    inner_array_reduce(array, start, reduce_fn, exec_state, &args)
+    inner_reduce(array, start, reduce_fn, exec_state, &args)
         .await
         .map(|sg| KclValue::UserVal(UserVal::new(sg.meta.clone(), sg)))
 }
@@ -28,7 +117,7 @@ pub async fn array_reduce(exec_state: &mut ExecState, args: Args) -> Result<KclV
 /// fn decagon = (radius) => {
 ///   let step = (1/10) * tau()
 ///   let sketch001 = startSketchAt([(cos(0)*radius), (sin(0) * radius)])
-///   return arrayReduce([1..10], sketch001, (i, sg) => {
+///   return reduce([1..10], sketch001, (i, sg) => {
 ///       let x = cos(step * i) * radius
 ///       let y = sin(step * i) * radius
 ///       return lineTo([x, y], sg)
@@ -37,9 +126,9 @@ pub async fn array_reduce(exec_state: &mut ExecState, args: Args) -> Result<KclV
 /// decagon(5.0) |> close(%)
 /// ```
 #[stdlib {
-    name = "arrayReduce",
+    name = "reduce",
 }]
-async fn inner_array_reduce<'a>(
+async fn inner_reduce<'a>(
     array: Vec<u64>,
     start: Sketch,
     reduce_fn: FunctionParam<'a>,

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

@@ -247,7 +247,7 @@ pub(crate) async fn do_post_extrude(sketch: Sketch, length: f64, args: Args) ->
                         Some(extrude_surface)
                     }
                 }
-            } else if args.ctx.is_mock {
+            } else if args.ctx.is_mock() {
                 // Only pre-populate the extrude surface if we are in mock mode.
 
                 let extrude_surface = ExtrudeSurface::ExtrudePlane(crate::executor::ExtrudePlane {
@@ -296,7 +296,7 @@ fn analyze_faces(args: &Args, face_infos: Vec<ExtrusionFaceInfo>) -> Faces {
         sides: HashMap::with_capacity(face_infos.len()),
         ..Default::default()
     };
-    if args.ctx.is_mock {
+    if args.ctx.is_mock() {
         // Create fake IDs for start and end caps, to make extrudes mock-execute safe
         faces.start_cap_id = Some(Uuid::new_v4());
         faces.end_cap_id = Some(Uuid::new_v4());

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

@@ -228,7 +228,7 @@ pub async fn get_opposite_edge(exec_state: &mut ExecState, args: Args) -> Result
     name = "getOppositeEdge",
 }]
 async fn inner_get_opposite_edge(tag: TagIdentifier, exec_state: &mut ExecState, args: Args) -> Result<Uuid, KclError> {
-    if args.ctx.is_mock {
+    if args.ctx.is_mock() {
         return Ok(Uuid::new_v4());
     }
     let face_id = args.get_adjacent_face_to_tag(exec_state, &tag, false).await?;
@@ -309,7 +309,7 @@ async fn inner_get_next_adjacent_edge(
     exec_state: &mut ExecState,
     args: Args,
 ) -> Result<Uuid, KclError> {
-    if args.ctx.is_mock {
+    if args.ctx.is_mock() {
         return Ok(Uuid::new_v4());
     }
     let face_id = args.get_adjacent_face_to_tag(exec_state, &tag, false).await?;
@@ -398,7 +398,7 @@ async fn inner_get_previous_adjacent_edge(
     exec_state: &mut ExecState,
     args: Args,
 ) -> Result<Uuid, KclError> {
-    if args.ctx.is_mock {
+    if args.ctx.is_mock() {
         return Ok(Uuid::new_v4());
     }
     let face_id = args.get_adjacent_face_to_tag(exec_state, &tag, false).await?;

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

@@ -284,7 +284,7 @@ async fn inner_import(
         }
     }
 
-    if args.ctx.is_mock {
+    if args.ctx.is_mock() {
         return Ok(ImportedGeometry {
             id: uuid::Uuid::new_v4(),
             value: import_files.iter().map(|f| f.path.to_string()).collect(),