Make ProgramMemory and the internals of ExecState private (#5364)

* Make ProgramMemory and the internals of ExecState private

Signed-off-by: Nick Cameron <nrc@ncameron.org>

* snapshot test changes

Signed-off-by: Nick Cameron <nrc@ncameron.org>

---------

Signed-off-by: Nick Cameron <nrc@ncameron.org>

src/lang/wasm.ts

@@ -9,7 +9,6 @@ import {
   modify_ast_for_sketch_wasm,
   is_points_ccw,
   get_tangential_arc_to_info,
-  program_memory_init,
   make_default_planes,
   coredump,
   toml_stringify,
@@ -43,9 +42,6 @@ import { DeepPartial } from 'lib/types'
 import { ProjectConfiguration } from 'wasm-lib/kcl/bindings/ProjectConfiguration'
 import { Sketch } from '../wasm-lib/kcl/bindings/Sketch'
 import { ExecOutcome as RustExecOutcome } from 'wasm-lib/kcl/bindings/ExecOutcome'
-import { ProgramMemory as RawProgramMemory } from '../wasm-lib/kcl/bindings/ProgramMemory'
-import { EnvironmentRef } from '../wasm-lib/kcl/bindings/EnvironmentRef'
-import { Environment } from '../wasm-lib/kcl/bindings/Environment'
 import { Node } from 'wasm-lib/kcl/bindings/Node'
 import { CompilationError } from 'wasm-lib/kcl/bindings/CompilationError'
 import { SourceRange } from 'wasm-lib/kcl/bindings/SourceRange'

src/lib/wasm_lib_wrapper.ts

@@ -17,7 +17,6 @@ import {
   modify_ast_for_sketch_wasm as ModifyAstForSketch,
   is_points_ccw as IsPointsCcw,
   get_tangential_arc_to_info as GetTangentialArcToInfo,
-  program_memory_init as ProgramMemoryInit,
   make_default_planes as MakeDefaultPlanes,
   coredump as CoreDump,
   toml_stringify as TomlStringify,
@@ -80,9 +79,6 @@ export const get_tangential_arc_to_info: typeof GetTangentialArcToInfo = (
 ) => {
   return getModule().get_tangential_arc_to_info(...args)
 }
-export const program_memory_init: typeof ProgramMemoryInit = (...args) => {
-  return getModule().program_memory_init(...args)
-}
 export const make_default_planes: typeof MakeDefaultPlanes = (...args) => {
   return getModule().make_default_planes(...args)
 }

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

@@ -442,7 +442,7 @@ fn do_stdlib_inner(
         #const_struct
 
         fn #boxed_fn_name_ident(
-            exec_state: &mut crate::ExecState,
+            exec_state: &mut crate::execution::ExecState,
             args: crate::std::Args,
         ) -> std::pin::Pin<
             Box<dyn std::future::Future<Output = anyhow::Result<crate::execution::KclValue, crate::errors::KclError>> + Send + '_>,
@@ -831,7 +831,7 @@ fn generate_code_block_test(fn_name: &str, code_block: &str, index: usize) -> pr
                 context_type: crate::execution::ContextType::Mock,
             };
 
-            if let Err(e) = ctx.run(&program, &mut crate::ExecState::new(&ctx.settings)).await {
+            if let Err(e) = ctx.run(&program, &mut crate::execution::ExecState::new(&ctx.settings)).await {
                     return Err(miette::Report::new(crate::errors::Report {
                         error: e,
                         filename: format!("{}{}", #fn_name, #index),

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

@@ -15,7 +15,10 @@ mod test_examples_someFn {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -67,7 +70,7 @@ pub(crate) struct SomeFn {}
 #[doc = "Std lib function: someFn\nDocs"]
 pub(crate) const SomeFn: SomeFn = SomeFn {};
 fn boxed_someFn(
-    exec_state: &mut crate::ExecState,
+    exec_state: &mut crate::execution::ExecState,
     args: crate::std::Args,
 ) -> std::pin::Pin<
     Box<

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

@@ -15,7 +15,10 @@ mod test_examples_someFn {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -67,7 +70,7 @@ pub(crate) struct SomeFn {}
 #[doc = "Std lib function: someFn\nDocs"]
 pub(crate) const SomeFn: SomeFn = SomeFn {};
 fn boxed_someFn(
-    exec_state: &mut crate::ExecState,
+    exec_state: &mut crate::execution::ExecState,
     args: crate::std::Args,
 ) -> std::pin::Pin<
     Box<

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

@@ -16,7 +16,10 @@ mod test_examples_show {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -73,7 +76,10 @@ mod test_examples_show {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -125,7 +131,7 @@ pub(crate) struct Show {}
 #[doc = "Std lib function: show\nThis is some function.\nIt does shit."]
 pub(crate) const Show: Show = Show {};
 fn boxed_show(
-    exec_state: &mut crate::ExecState,
+    exec_state: &mut crate::execution::ExecState,
     args: crate::std::Args,
 ) -> std::pin::Pin<
     Box<

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

@@ -16,7 +16,10 @@ mod test_examples_show {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -68,7 +71,7 @@ pub(crate) struct Show {}
 #[doc = "Std lib function: show\nThis is some function.\nIt does shit."]
 pub(crate) const Show: Show = Show {};
 fn boxed_show(
-    exec_state: &mut crate::ExecState,
+    exec_state: &mut crate::execution::ExecState,
     args: crate::std::Args,
 ) -> std::pin::Pin<
     Box<

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

@@ -17,7 +17,10 @@ mod test_examples_my_func {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -74,7 +77,10 @@ mod test_examples_my_func {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -126,7 +132,7 @@ pub(crate) struct MyFunc {}
 #[doc = "Std lib function: myFunc\nThis is some function.\nIt does shit."]
 pub(crate) const MyFunc: MyFunc = MyFunc {};
 fn boxed_my_func(
-    exec_state: &mut crate::ExecState,
+    exec_state: &mut crate::execution::ExecState,
     args: crate::std::Args,
 ) -> std::pin::Pin<
     Box<

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

@@ -17,7 +17,10 @@ mod test_examples_line_to {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -74,7 +77,10 @@ mod test_examples_line_to {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -126,7 +132,7 @@ pub(crate) struct LineTo {}
 #[doc = "Std lib function: lineTo\nThis is some function.\nIt does shit."]
 pub(crate) const LineTo: LineTo = LineTo {};
 fn boxed_line_to(
-    exec_state: &mut crate::ExecState,
+    exec_state: &mut crate::execution::ExecState,
     args: crate::std::Args,
 ) -> std::pin::Pin<
     Box<

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

@@ -16,7 +16,10 @@ mod test_examples_min {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -73,7 +76,10 @@ mod test_examples_min {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -125,7 +131,7 @@ pub(crate) struct Min {}
 #[doc = "Std lib function: min\nThis is some function.\nIt does shit."]
 pub(crate) const Min: Min = Min {};
 fn boxed_min(
-    exec_state: &mut crate::ExecState,
+    exec_state: &mut crate::execution::ExecState,
     args: crate::std::Args,
 ) -> std::pin::Pin<
     Box<

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

@@ -16,7 +16,10 @@ mod test_examples_show {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -68,7 +71,7 @@ pub(crate) struct Show {}
 #[doc = "Std lib function: show\nThis is some function.\nIt does shit."]
 pub(crate) const Show: Show = Show {};
 fn boxed_show(
-    exec_state: &mut crate::ExecState,
+    exec_state: &mut crate::execution::ExecState,
     args: crate::std::Args,
 ) -> std::pin::Pin<
     Box<

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

@@ -16,7 +16,10 @@ mod test_examples_import {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -68,7 +71,7 @@ pub(crate) struct Import {}
 #[doc = "Std lib function: import\nThis is some function.\nIt does shit."]
 pub(crate) const Import: Import = Import {};
 fn boxed_import(
-    exec_state: &mut crate::ExecState,
+    exec_state: &mut crate::execution::ExecState,
     args: crate::std::Args,
 ) -> std::pin::Pin<
     Box<

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

@@ -16,7 +16,10 @@ mod test_examples_import {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -68,7 +71,7 @@ pub(crate) struct Import {}
 #[doc = "Std lib function: import\nThis is some function.\nIt does shit."]
 pub(crate) const Import: Import = Import {};
 fn boxed_import(
-    exec_state: &mut crate::ExecState,
+    exec_state: &mut crate::execution::ExecState,
     args: crate::std::Args,
 ) -> std::pin::Pin<
     Box<

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

@@ -16,7 +16,10 @@ mod test_examples_import {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -68,7 +71,7 @@ pub(crate) struct Import {}
 #[doc = "Std lib function: import\nThis is some function.\nIt does shit."]
 pub(crate) const Import: Import = Import {};
 fn boxed_import(
-    exec_state: &mut crate::ExecState,
+    exec_state: &mut crate::execution::ExecState,
     args: crate::std::Args,
 ) -> std::pin::Pin<
     Box<

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

@@ -16,7 +16,10 @@ mod test_examples_show {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -68,7 +71,7 @@ pub(crate) struct Show {}
 #[doc = "Std lib function: show\nThis is some function.\nIt does shit."]
 pub(crate) const Show: Show = Show {};
 fn boxed_show(
-    exec_state: &mut crate::ExecState,
+    exec_state: &mut crate::execution::ExecState,
     args: crate::std::Args,
 ) -> std::pin::Pin<
     Box<

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

@@ -15,7 +15,10 @@ mod test_examples_some_function {
             context_type: crate::execution::ContextType::Mock,
         };
         if let Err(e) = ctx
-            .run(&program, &mut crate::ExecState::new(&ctx.settings))
+            .run(
+                &program,
+                &mut crate::execution::ExecState::new(&ctx.settings),
+            )
             .await
         {
             return Err(miette::Report::new(crate::errors::Report {
@@ -67,7 +70,7 @@ pub(crate) struct SomeFunction {}
 #[doc = "Std lib function: someFunction\nDocs"]
 pub(crate) const SomeFunction: SomeFunction = SomeFunction {};
 fn boxed_some_function(
-    exec_state: &mut crate::ExecState,
+    exec_state: &mut crate::execution::ExecState,
     args: crate::std::Args,
 ) -> std::pin::Pin<
     Box<

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

@@ -31,12 +31,12 @@ impl From<KclErrorWithOutputs> for ExecError {
 #[derive(Debug)]
 pub struct ExecErrorWithState {
     pub error: ExecError,
-    pub exec_state: Option<crate::ExecState>,
+    pub exec_state: Option<crate::execution::ExecState>,
 }
 
 impl ExecErrorWithState {
     #[cfg_attr(target_arch = "wasm32", expect(dead_code))]
-    pub fn new(error: ExecError, exec_state: crate::ExecState) -> Self {
+    pub fn new(error: ExecError, exec_state: crate::execution::ExecState) -> Self {
         Self {
             error,
             exec_state: Some(exec_state),

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

@@ -6,13 +6,11 @@ use itertools::{EitherOrBoth, Itertools};
 use tokio::sync::RwLock;
 
 use crate::{
-    execution::{ExecState, ExecutorSettings},
+    execution::{memory::ProgramMemory, ExecState, ExecutorSettings},
     parsing::ast::types::{Node, NonCodeValue, Program},
     walk::Node as WalkNode,
 };
 
-use super::ProgramMemory;
-
 lazy_static::lazy_static! {
     /// A static mutable lock for updating the last successful execution state for the cache.
     static ref OLD_AST: Arc<RwLock<Option<OldAstState>>> = Default::default();

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

@@ -10,9 +10,10 @@ use crate::{
         annotations,
         cad_op::{OpArg, Operation},
         memory,
+        memory::ProgramMemory,
         state::ModuleState,
-        BodyType, EnvironmentRef, ExecState, ExecutorContext, KclValue, MemoryFunction, Metadata, ProgramMemory,
-        TagEngineInfo, TagIdentifier,
+        BodyType, EnvironmentRef, ExecState, ExecutorContext, KclValue, MemoryFunction, Metadata, TagEngineInfo,
+        TagIdentifier,
     },
     modules::{ModuleId, ModulePath, ModuleRepr},
     parsing::ast::types::{

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

@@ -8,14 +8,15 @@ use crate::{
     errors::KclErrorDetails,
     exec::Sketch,
     execution::{
-        Face, Helix, ImportedGeometry, MemoryFunction, Metadata, Plane, SketchSet, Solid, SolidSet, TagIdentifier,
+        ExecState, Face, Helix, ImportedGeometry, MemoryFunction, Metadata, Plane, SketchSet, Solid, SolidSet,
+        TagIdentifier,
     },
     parsing::{
         ast::types::{FunctionExpression, KclNone, LiteralValue, TagDeclarator, TagNode},
         token::NumericSuffix,
     },
     std::{args::Arg, FnAsArg},
-    ExecState, ExecutorContext, KclError, ModuleId, SourceRange,
+    ExecutorContext, KclError, ModuleId, SourceRange,
 };
 
 use super::memory::EnvironmentRef;

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

@@ -156,18 +156,14 @@ pub(crate) const RETURN_NAME: &str = "__return";
 /// including other modules). Multiple interpretation runs should have fresh instances.
 ///
 /// See module docs.
-#[derive(Debug, Clone, Deserialize, Serialize, ts_rs::TS, JsonSchema)]
-#[ts(export)]
-#[serde(rename_all = "camelCase")]
-pub struct ProgramMemory {
+#[derive(Debug, Clone)]
+pub(crate) struct ProgramMemory {
     environments: Vec<Environment>,
     /// Invariant: current_env.1.is_none()
     current_env: EnvironmentRef,
     /// Invariant: forall er in call_stack: er.1.is_none()
     call_stack: Vec<EnvironmentRef>,
     /// Statistics about the memory, should not be used for anything other than meta-info.
-    #[allow(dead_code)]
-    #[serde(skip)]
     pub(crate) stats: MemoryStats,
 }
 
@@ -573,7 +569,7 @@ pub(crate) struct MemoryStats {
 mod env {
     use super::*;
 
-    #[derive(Debug, Clone, Deserialize, Serialize, PartialEq, ts_rs::TS, JsonSchema)]
+    #[derive(Debug, Clone, PartialEq)]
     pub(super) struct Environment {
         bindings: IndexMap<String, KclValue>,
         // invariant: self.parent.is_none() => forall s in self.snapshots: s.parent_snapshot.is_none()
@@ -603,7 +599,7 @@ mod env {
         }
     }
 
-    #[derive(Debug, Clone, Deserialize, Serialize, PartialEq, ts_rs::TS, JsonSchema)]
+    #[derive(Debug, Clone, PartialEq)]
     struct Snapshot {
         /// The version of the owning environment's parent environment corresponding to this snapshot.
         parent_snapshot: Option<SnapshotRef>,

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

@@ -39,7 +39,7 @@ pub(crate) use import::{
     import_foreign, send_to_engine as send_import_to_engine, PreImportedGeometry, ZOO_COORD_SYSTEM,
 };
 pub use kcl_value::{KclObjectFields, KclValue, UnitAngle, UnitLen};
-pub use memory::{EnvironmentRef, ProgramMemory};
+pub use memory::EnvironmentRef;
 pub use state::{ExecState, IdGenerator, MetaSettings};
 
 pub(crate) mod annotations;
@@ -821,7 +821,7 @@ mod tests {
     use pretty_assertions::assert_eq;
 
     use super::*;
-    use crate::{errors::KclErrorDetails, ModuleId};
+    use crate::{errors::KclErrorDetails, execution::memory::ProgramMemory, ModuleId};
 
     /// Convenience function to get a JSON value from memory and unwrap.
     #[track_caller]

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

@@ -8,8 +8,8 @@ use uuid::Uuid;
 use crate::{
     errors::{KclError, KclErrorDetails},
     execution::{
-        annotations, kcl_value, Artifact, ArtifactCommand, ArtifactGraph, ArtifactId, ExecOutcome, ExecutorSettings,
-        KclValue, Operation, ProgramMemory, UnitAngle, UnitLen,
+        annotations, kcl_value, memory::ProgramMemory, Artifact, ArtifactCommand, ArtifactGraph, ArtifactId,
+        ExecOutcome, ExecutorSettings, KclValue, Operation, UnitAngle, UnitLen,
     },
     modules::{ModuleId, ModuleInfo, ModuleLoader, ModulePath, ModuleRepr},
     parsing::ast::types::NonCodeValue,
@@ -17,16 +17,14 @@ use crate::{
 };
 
 /// State for executing a program.
-#[derive(Debug, Clone, Deserialize, Serialize)]
-#[serde(rename_all = "camelCase")]
+#[derive(Debug, Clone)]
 pub struct ExecState {
-    pub global: GlobalState,
-    pub mod_local: ModuleState,
+    pub(super) global: GlobalState,
+    pub(super) mod_local: ModuleState,
 }
 
-#[derive(Debug, Clone, Deserialize, Serialize)]
-#[serde(rename_all = "camelCase")]
-pub struct GlobalState {
+#[derive(Debug, Clone)]
+pub(super) struct GlobalState {
     /// Program variable bindings.
     pub memory: ProgramMemory,
     /// The stable artifact ID generator.
@@ -52,9 +50,8 @@ pub struct GlobalState {
     pub mod_loader: ModuleLoader,
 }
 
-#[derive(Debug, Clone, Deserialize, Serialize)]
-#[serde(rename_all = "camelCase")]
-pub struct ModuleState {
+#[derive(Debug, Clone)]
+pub(super) struct ModuleState {
     /// The current value of the pipe operator returned from the previous
     /// expression.  If we're not currently in a pipeline, this will be None.
     pub pipe_value: Option<KclValue>,
@@ -125,19 +122,19 @@ impl ExecState {
         }
     }
 
-    pub fn memory(&self) -> &ProgramMemory {
+    pub(crate) fn memory(&self) -> &ProgramMemory {
         &self.global.memory
     }
 
-    pub fn mut_memory(&mut self) -> &mut ProgramMemory {
+    pub(crate) fn mut_memory(&mut self) -> &mut ProgramMemory {
         &mut self.global.memory
     }
 
-    pub fn next_uuid(&mut self) -> Uuid {
+    pub(crate) fn next_uuid(&mut self) -> Uuid {
         self.global.id_generator.next_uuid()
     }
 
-    pub fn add_artifact(&mut self, artifact: Artifact) {
+    pub(crate) fn add_artifact(&mut self, artifact: Artifact) {
         let id = artifact.id();
         self.global.artifacts.insert(id, artifact);
     }

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

@@ -98,9 +98,7 @@ pub use source_range::SourceRange;
 // Rather than make executor public and make lots of it pub(crate), just re-export into a new module.
 // Ideally we wouldn't export these things at all, they should only be used for testing.
 pub mod exec {
-    pub use crate::execution::{
-        ArtifactCommand, DefaultPlanes, IdGenerator, KclValue, PlaneType, ProgramMemory, Sketch,
-    };
+    pub use crate::execution::{ArtifactCommand, DefaultPlanes, IdGenerator, KclValue, PlaneType, Sketch};
 }
 
 #[cfg(target_arch = "wasm32")]

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

@@ -33,9 +33,8 @@ impl ModuleId {
     }
 }
 
-#[derive(Debug, Clone, Deserialize, Serialize, Default)]
-#[serde(rename_all = "camelCase")]
-pub struct ModuleLoader {
+#[derive(Debug, Clone, Default)]
+pub(crate) struct ModuleLoader {
     /// The stack of import statements for detecting circular module imports.
     /// If this is empty, we're not currently executing an import statement.
     pub import_stack: Vec<PathBuf>,

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

@@ -102,21 +102,22 @@ async fn execute(test_name: &str, render_to_png: bool) {
             if render_to_png {
                 twenty_twenty::assert_image(format!("tests/{test_name}/rendered_model.png"), &png, 0.99);
             }
-            assert_snapshot(test_name, "Program memory after executing", || {
-                insta::assert_json_snapshot!("program_memory", exec_state.memory(), {
-                    ".environments[].**[].from[]" => rounded_redaction(4),
-                    ".environments[].**[].to[]" => rounded_redaction(4),
-                    ".environments[].**[].x[]" => rounded_redaction(4),
-                    ".environments[].**[].y[]" => rounded_redaction(4),
-                    ".environments[].**[].z[]" => rounded_redaction(4),
-                });
-            });
+            let outcome = exec_state.to_wasm_outcome();
             assert_common_snapshots(
                 test_name,
-                exec_state.mod_local.operations,
-                exec_state.global.artifact_commands,
-                exec_state.global.artifact_graph,
+                outcome.operations,
+                outcome.artifact_commands,
+                outcome.artifact_graph,
             );
+            assert_snapshot(test_name, "Variables in memory after executing", || {
+                insta::assert_json_snapshot!("program_memory", outcome.variables, {
+                        ".**[].from[]" => rounded_redaction(4),
+                        ".**[].to[]" => rounded_redaction(4),
+                        ".**[].x[]" => rounded_redaction(4),
+                        ".**[].y[]" => rounded_redaction(4),
+                        ".**[].z[]" => rounded_redaction(4),
+                })
+            });
         }
         Err(e) => {
             let ok_path_str = format!("tests/{test_name}/program_memory.snap");

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

@@ -134,7 +134,7 @@ async fn inner_chamfer(
             EdgeReference::Tag(edge_tag) => args.get_tag_engine_info(exec_state, &edge_tag)?.id,
         };
 
-        let id = exec_state.global.id_generator.next_uuid();
+        let id = exec_state.next_uuid();
         args.batch_end_cmd(
             id,
             ModelingCmd::from(mcmd::Solid3dFilletEdge {

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

@@ -218,7 +218,7 @@ async fn straight_line(
         }
     };
 
-    let id = exec_state.global.id_generator.next_uuid();
+    let id = exec_state.next_uuid();
     args.batch_modeling_cmd(
         id,
         ModelingCmd::from(mcmd::ExtendPath {

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

@@ -5,9 +5,9 @@ use std::path::PathBuf;
 use crate::{
     engine::new_zoo_client,
     errors::ExecErrorWithState,
-    execution::{ExecutorContext, ExecutorSettings},
+    execution::{ExecState, ExecutorContext, ExecutorSettings},
     settings::types::UnitLength,
-    ConnectionError, ExecError, ExecState, KclErrorWithOutputs, Program,
+    ConnectionError, ExecError, KclErrorWithOutputs, Program,
 };
 
 #[derive(serde::Deserialize, serde::Serialize)]

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

@@ -1,50 +1,320 @@
 ---
 source: kcl/src/simulation_tests.rs
-description: Program memory after executing angled_line.kcl
+description: Variables in memory after executing angled_line.kcl
 ---
 {
-  "environments": [
-    {
-      "bindings": {
-        "HALF_TURN": {
-          "type": "Number",
-          "value": 180.0,
+  "HALF_TURN": {
+    "type": "Number",
+    "value": 180.0,
+    "__meta": []
+  },
+  "QUARTER_TURN": {
+    "type": "Number",
+    "value": 90.0,
+    "__meta": []
+  },
+  "THREE_QUARTER_TURN": {
+    "type": "Number",
+    "value": 270.0,
+    "__meta": []
+  },
+  "ZERO": {
+    "type": "Number",
+    "value": 0.0,
+    "__meta": []
+  },
+  "part001": {
+    "type": "Solid",
+    "value": {
+      "type": "Solid",
+      "id": "[uuid]",
+      "artifactId": "[uuid]",
+      "value": [
+        {
+          "faceId": "[uuid]",
+          "id": "[uuid]",
+          "sourceRange": [
+            73,
+            97,
+            0
+          ],
+          "tag": null,
+          "type": "extrudePlane"
+        },
+        {
+          "faceId": "[uuid]",
+          "id": "[uuid]",
+          "sourceRange": [
+            103,
+            142,
+            0
+          ],
+          "tag": {
+            "end": 141,
+            "start": 135,
+            "type": "TagDeclarator",
+            "value": "seg01"
+          },
+          "type": "extrudePlane"
+        },
+        {
+          "faceId": "[uuid]",
+          "id": "[uuid]",
+          "sourceRange": [
+            148,
+            174,
+            0
+          ],
+          "tag": null,
+          "type": "extrudePlane"
+        },
+        {
+          "faceId": "[uuid]",
+          "id": "[uuid]",
+          "sourceRange": [
+            180,
+            217,
+            0
+          ],
+          "tag": null,
+          "type": "extrudePlane"
+        },
+        {
+          "faceId": "[uuid]",
+          "id": "[uuid]",
+          "sourceRange": [
+            223,
+            250,
+            0
+          ],
+          "tag": null,
+          "type": "extrudePlane"
+        },
+        {
+          "faceId": "[uuid]",
+          "id": "[uuid]",
+          "sourceRange": [
+            256,
+            264,
+            0
+          ],
+          "tag": null,
+          "type": "extrudePlane"
+        }
+      ],
+      "sketch": {
+        "type": "Sketch",
+        "id": "[uuid]",
+        "paths": [
+          {
+            "__geoMeta": {
+              "id": "[uuid]",
+              "sourceRange": [
+                73,
+                97,
+                0
+              ]
+            },
+            "from": [
+              4.83,
+              12.56
+            ],
+            "tag": null,
+            "to": [
+              19.93,
+              15.04
+            ],
+            "type": "ToPoint"
+          },
+          {
+            "__geoMeta": {
+              "id": "[uuid]",
+              "sourceRange": [
+                103,
+                142,
+                0
+              ]
+            },
+            "from": [
+              19.93,
+              15.04
+            ],
+            "tag": {
+              "end": 141,
+              "start": 135,
+              "type": "TagDeclarator",
+              "value": "seg01"
+            },
+            "to": [
+              23.08,
+              5.19
+            ],
+            "type": "ToPoint"
+          },
+          {
+            "__geoMeta": {
+              "id": "[uuid]",
+              "sourceRange": [
+                148,
+                174,
+                0
+              ]
+            },
+            "from": [
+              23.08,
+              5.19
+            ],
+            "tag": null,
+            "to": [
+              7.91,
+              1.09
+            ],
+            "type": "ToPoint"
+          },
+          {
+            "__geoMeta": {
+              "id": "[uuid]",
+              "sourceRange": [
+                180,
+                217,
+                0
+              ]
+            },
+            "from": [
+              7.91,
+              1.09
+            ],
+            "tag": null,
+            "to": [
+              11.6718,
+              -10.6731
+            ],
+            "type": "ToPoint"
+          },
+          {
+            "__geoMeta": {
+              "id": "[uuid]",
+              "sourceRange": [
+                223,
+                250,
+                0
+              ]
+            },
+            "from": [
+              11.6718,
+              -10.6731
+            ],
+            "tag": null,
+            "to": [
+              -1.3482,
+              -0.6431
+            ],
+            "type": "ToPoint"
+          },
+          {
+            "__geoMeta": {
+              "id": "[uuid]",
+              "sourceRange": [
+                256,
+                264,
+                0
+              ]
+            },
+            "from": [
+              -1.3482,
+              -0.6431
+            ],
+            "tag": null,
+            "to": [
+              4.83,
+              12.56
+            ],
+            "type": "ToPoint"
+          }
+        ],
+        "on": {
+          "type": "plane",
+          "id": "[uuid]",
+          "artifactId": "[uuid]",
+          "value": "XY",
+          "origin": {
+            "x": 0.0,
+            "y": 0.0,
+            "z": 0.0
+          },
+          "xAxis": {
+            "x": 1.0,
+            "y": 0.0,
+            "z": 0.0
+          },
+          "yAxis": {
+            "x": 0.0,
+            "y": 1.0,
+            "z": 0.0
+          },
+          "zAxis": {
+            "x": 0.0,
+            "y": 0.0,
+            "z": 1.0
+          },
+          "units": {
+            "type": "Mm"
+          },
           "__meta": []
         },
-        "QUARTER_TURN": {
-          "type": "Number",
-          "value": 90.0,
-          "__meta": []
-        },
-        "THREE_QUARTER_TURN": {
-          "type": "Number",
-          "value": 270.0,
-          "__meta": []
-        },
-        "ZERO": {
-          "type": "Number",
-          "value": 0.0,
-          "__meta": []
-        },
-        "part001": {
-          "type": "Solid",
-          "value": {
-            "type": "Solid",
+        "start": {
+          "from": [
+            4.83,
+            12.56
+          ],
+          "to": [
+            4.83,
+            12.56
+          ],
+          "tag": null,
+          "__geoMeta": {
             "id": "[uuid]",
-            "artifactId": "[uuid]",
-            "value": [
-              {
-                "faceId": "[uuid]",
-                "id": "[uuid]",
-                "sourceRange": [
-                  73,
-                  97,
-                  0
+            "sourceRange": [
+              35,
+              67,
+              0
+            ]
+          }
+        },
+        "tags": {
+          "seg01": {
+            "type": "TagIdentifier",
+            "value": "seg01",
+            "info": {
+              "type": "TagEngineInfo",
+              "id": "[uuid]",
+              "sketch": "[uuid]",
+              "path": {
+                "__geoMeta": {
+                  "id": "[uuid]",
+                  "sourceRange": [
+                    103,
+                    142,
+                    0
+                  ]
+                },
+                "from": [
+                  19.93,
+                  15.040000000000001
                 ],
-                "tag": null,
-                "type": "extrudePlane"
+                "tag": {
+                  "end": 141,
+                  "start": 135,
+                  "type": "TagDeclarator",
+                  "value": "seg01"
+                },
+                "to": [
+                  23.08,
+                  5.190000000000001
+                ],
+                "type": "ToPoint"
               },
-              {
+              "surface": {
                 "faceId": "[uuid]",
                 "id": "[uuid]",
                 "sourceRange": [
@@ -59,392 +329,109 @@ description: Program memory after executing angled_line.kcl
                   "value": "seg01"
                 },
                 "type": "extrudePlane"
-              },
-              {
-                "faceId": "[uuid]",
-                "id": "[uuid]",
-                "sourceRange": [
-                  148,
-                  174,
-                  0
-                ],
-                "tag": null,
-                "type": "extrudePlane"
-              },
-              {
-                "faceId": "[uuid]",
-                "id": "[uuid]",
-                "sourceRange": [
-                  180,
-                  217,
-                  0
-                ],
-                "tag": null,
-                "type": "extrudePlane"
-              },
-              {
-                "faceId": "[uuid]",
-                "id": "[uuid]",
-                "sourceRange": [
-                  223,
-                  250,
-                  0
-                ],
-                "tag": null,
-                "type": "extrudePlane"
-              },
-              {
-                "faceId": "[uuid]",
-                "id": "[uuid]",
-                "sourceRange": [
-                  256,
-                  264,
-                  0
-                ],
-                "tag": null,
-                "type": "extrudePlane"
               }
-            ],
-            "sketch": {
-              "type": "Sketch",
-              "id": "[uuid]",
-              "paths": [
-                {
-                  "__geoMeta": {
-                    "id": "[uuid]",
-                    "sourceRange": [
-                      73,
-                      97,
-                      0
-                    ]
-                  },
-                  "from": [
-                    4.83,
-                    12.56
-                  ],
-                  "tag": null,
-                  "to": [
-                    19.93,
-                    15.04
-                  ],
-                  "type": "ToPoint"
-                },
-                {
-                  "__geoMeta": {
-                    "id": "[uuid]",
-                    "sourceRange": [
-                      103,
-                      142,
-                      0
-                    ]
-                  },
-                  "from": [
-                    19.93,
-                    15.04
-                  ],
-                  "tag": {
-                    "end": 141,
-                    "start": 135,
-                    "type": "TagDeclarator",
-                    "value": "seg01"
-                  },
-                  "to": [
-                    23.08,
-                    5.19
-                  ],
-                  "type": "ToPoint"
-                },
-                {
-                  "__geoMeta": {
-                    "id": "[uuid]",
-                    "sourceRange": [
-                      148,
-                      174,
-                      0
-                    ]
-                  },
-                  "from": [
-                    23.08,
-                    5.19
-                  ],
-                  "tag": null,
-                  "to": [
-                    7.91,
-                    1.09
-                  ],
-                  "type": "ToPoint"
-                },
-                {
-                  "__geoMeta": {
-                    "id": "[uuid]",
-                    "sourceRange": [
-                      180,
-                      217,
-                      0
-                    ]
-                  },
-                  "from": [
-                    7.91,
-                    1.09
-                  ],
-                  "tag": null,
-                  "to": [
-                    11.6718,
-                    -10.6731
-                  ],
-                  "type": "ToPoint"
-                },
-                {
-                  "__geoMeta": {
-                    "id": "[uuid]",
-                    "sourceRange": [
-                      223,
-                      250,
-                      0
-                    ]
-                  },
-                  "from": [
-                    11.6718,
-                    -10.6731
-                  ],
-                  "tag": null,
-                  "to": [
-                    -1.3482,
-                    -0.6431
-                  ],
-                  "type": "ToPoint"
-                },
-                {
-                  "__geoMeta": {
-                    "id": "[uuid]",
-                    "sourceRange": [
-                      256,
-                      264,
-                      0
-                    ]
-                  },
-                  "from": [
-                    -1.3482,
-                    -0.6431
-                  ],
-                  "tag": null,
-                  "to": [
-                    4.83,
-                    12.56
-                  ],
-                  "type": "ToPoint"
-                }
-              ],
-              "on": {
-                "type": "plane",
-                "id": "[uuid]",
-                "artifactId": "[uuid]",
-                "value": "XY",
-                "origin": {
-                  "x": 0.0,
-                  "y": 0.0,
-                  "z": 0.0
-                },
-                "xAxis": {
-                  "x": 1.0,
-                  "y": 0.0,
-                  "z": 0.0
-                },
-                "yAxis": {
-                  "x": 0.0,
-                  "y": 1.0,
-                  "z": 0.0
-                },
-                "zAxis": {
-                  "x": 0.0,
-                  "y": 0.0,
-                  "z": 1.0
-                },
-                "units": {
-                  "type": "Mm"
-                },
-                "__meta": []
-              },
-              "start": {
-                "from": [
-                  4.83,
-                  12.56
-                ],
-                "to": [
-                  4.83,
-                  12.56
-                ],
-                "tag": null,
-                "__geoMeta": {
-                  "id": "[uuid]",
-                  "sourceRange": [
-                    35,
-                    67,
-                    0
-                  ]
-                }
-              },
-              "tags": {
-                "seg01": {
-                  "type": "TagIdentifier",
-                  "value": "seg01",
-                  "info": {
-                    "type": "TagEngineInfo",
-                    "id": "[uuid]",
-                    "sketch": "[uuid]",
-                    "path": {
-                      "__geoMeta": {
-                        "id": "[uuid]",
-                        "sourceRange": [
-                          103,
-                          142,
-                          0
-                        ]
-                      },
-                      "from": [
-                        19.93,
-                        15.040000000000001
-                      ],
-                      "tag": {
-                        "end": 141,
-                        "start": 135,
-                        "type": "TagDeclarator",
-                        "value": "seg01"
-                      },
-                      "to": [
-                        23.08,
-                        5.190000000000001
-                      ],
-                      "type": "ToPoint"
-                    },
-                    "surface": {
-                      "faceId": "[uuid]",
-                      "id": "[uuid]",
-                      "sourceRange": [
-                        103,
-                        142,
-                        0
-                      ],
-                      "tag": {
-                        "end": 141,
-                        "start": 135,
-                        "type": "TagDeclarator",
-                        "value": "seg01"
-                      },
-                      "type": "extrudePlane"
-                    }
-                  },
-                  "__meta": [
-                    {
-                      "sourceRange": [
-                        135,
-                        141,
-                        0
-                      ]
-                    }
-                  ]
-                }
-              },
-              "artifactId": "[uuid]",
-              "originalId": "[uuid]",
-              "units": {
-                "type": "Mm"
-              },
-              "__meta": [
-                {
-                  "sourceRange": [
-                    35,
-                    67,
-                    0
-                  ]
-                }
-              ]
-            },
-            "height": 4.0,
-            "startCapId": "[uuid]",
-            "endCapId": "[uuid]",
-            "units": {
-              "type": "Mm"
             },
             "__meta": [
               {
                 "sourceRange": [
-                  35,
-                  67,
+                  135,
+                  141,
                   0
                 ]
               }
             ]
           }
         },
-        "seg01": {
-          "type": "TagIdentifier",
-          "type": "TagIdentifier",
-          "value": "seg01",
-          "info": {
-            "type": "TagEngineInfo",
-            "id": "[uuid]",
-            "sketch": "[uuid]",
-            "path": {
-              "__geoMeta": {
-                "id": "[uuid]",
-                "sourceRange": [
-                  103,
-                  142,
-                  0
-                ]
-              },
-              "from": [
-                19.93,
-                15.040000000000001
-              ],
-              "tag": {
-                "end": 141,
-                "start": 135,
-                "type": "TagDeclarator",
-                "value": "seg01"
-              },
-              "to": [
-                23.08,
-                5.190000000000001
-              ],
-              "type": "ToPoint"
-            },
-            "surface": {
-              "faceId": "[uuid]",
-              "id": "[uuid]",
-              "sourceRange": [
-                103,
-                142,
-                0
-              ],
-              "tag": {
-                "end": 141,
-                "start": 135,
-                "type": "TagDeclarator",
-                "value": "seg01"
-              },
-              "type": "extrudePlane"
-            }
-          },
-          "__meta": [
-            {
-              "sourceRange": [
-                135,
-                141,
-                0
-              ]
-            }
+        "artifactId": "[uuid]",
+        "originalId": "[uuid]",
+        "units": {
+          "type": "Mm"
+        },
+        "__meta": [
+          {
+            "sourceRange": [
+              35,
+              67,
+              0
+            ]
+          }
+        ]
+      },
+      "height": 4.0,
+      "startCapId": "[uuid]",
+      "endCapId": "[uuid]",
+      "units": {
+        "type": "Mm"
+      },
+      "__meta": [
+        {
+          "sourceRange": [
+            35,
+            67,
+            0
           ]
         }
-      },
-      "snapshots": [],
-      "parent": null
+      ]
     }
-  ],
-  "currentEnv": [
-    0,
-    0
-  ],
-  "callStack": []
+  },
+  "seg01": {
+    "type": "TagIdentifier",
+    "type": "TagIdentifier",
+    "value": "seg01",
+    "info": {
+      "type": "TagEngineInfo",
+      "id": "[uuid]",
+      "sketch": "[uuid]",
+      "path": {
+        "__geoMeta": {
+          "id": "[uuid]",
+          "sourceRange": [
+            103,
+            142,
+            0
+          ]
+        },
+        "from": [
+          19.93,
+          15.040000000000001
+        ],
+        "tag": {
+          "end": 141,
+          "start": 135,
+          "type": "TagDeclarator",
+          "value": "seg01"
+        },
+        "to": [
+          23.08,
+          5.190000000000001
+        ],
+        "type": "ToPoint"
+      },
+      "surface": {
+        "faceId": "[uuid]",
+        "id": "[uuid]",
+        "sourceRange": [
+          103,
+          142,
+          0
+        ],
+        "tag": {
+          "end": 141,
+          "start": 135,
+          "type": "TagDeclarator",
+          "value": "seg01"
+        },
+        "type": "extrudePlane"
+      }
+    },
+    "__meta": [
+      {
+        "sourceRange": [
+          135,
+          141,
+          0
+        ]
+      }
+    ]
+  }
 }

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

@@ -1,172 +1,159 @@
 ---
 source: kcl/src/simulation_tests.rs
-description: Program memory after executing array_elem_pop.kcl
+description: Variables in memory after executing array_elem_pop.kcl
 ---
 {
-  "environments": [
-    {
-      "bindings": {
-        "HALF_TURN": {
-          "type": "Number",
-          "value": 180.0,
-          "__meta": []
-        },
-        "QUARTER_TURN": {
-          "type": "Number",
-          "value": 90.0,
-          "__meta": []
-        },
-        "THREE_QUARTER_TURN": {
-          "type": "Number",
-          "value": 270.0,
-          "__meta": []
-        },
-        "ZERO": {
-          "type": "Number",
-          "value": 0.0,
-          "__meta": []
-        },
-        "arr": {
-          "type": "Array",
-          "value": [
-            {
-              "type": "Number",
-              "value": 1.0,
-              "__meta": [
-                {
-                  "sourceRange": [
-                    7,
-                    8,
-                    0
-                  ]
-                }
-              ]
-            },
-            {
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src/wasm-lib/kcl/tests/array_elem_push/program_memory.snap

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

@@ -1,394 +1,381 @@
 ---
 source: kcl/src/simulation_tests.rs
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src/wasm-lib/kcl/tests/array_range_negative_expr/program_memory.snap

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

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       },
-      "snapshots": [],
-      "parent": null
+      "artifactId": "[uuid]",
+      "originalId": "[uuid]",
+      "units": {
+        "type": "Mm"
+      },
+      "__meta": [
+        {
+          "sourceRange": [
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+            0
+          ]
+        }
+      ]
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-  "currentEnv": [
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-    0
-  ],
-  "callStack": []
+  }
 }

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

@@ -1,39 +1,268 @@
 ---
 source: kcl/src/simulation_tests.rs
-description: Program memory after executing basic_fillet_cube_end.kcl
+description: Variables in memory after executing basic_fillet_cube_end.kcl
 ---
 {
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-      "bindings": {
-        "HALF_TURN": {
-          "type": "Number",
-          "value": 180.0,
+  "HALF_TURN": {
+    "type": "Number",
+    "value": 180.0,
+    "__meta": []
+  },
+  "QUARTER_TURN": {
+    "type": "Number",
+    "value": 90.0,
+    "__meta": []
+  },
+  "THREE_QUARTER_TURN": {
+    "type": "Number",
+    "value": 270.0,
+    "__meta": []
+  },
+  "ZERO": {
+    "type": "Number",
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+          "type": "extrudePlane"
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+        {
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+          },
+          "xAxis": {
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+            "y": 0.0,
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+            "z": 0.0
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+            "y": 0.0,
+            "z": 1.0
+          },
+          "units": {
+            "type": "Mm"
+          },
           "__meta": []
         },
-        "QUARTER_TURN": {
-          "type": "Number",
-          "value": 90.0,
-          "__meta": []
-        },
-        "THREE_QUARTER_TURN": {
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-          "__meta": []
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-          "value": {
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-            "value": [
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+            "sourceRange": [
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+              60,
+              0
+            ]
+          }
+        },
+        "tags": {
+          "thing": {
+            "type": "TagIdentifier",
+            "value": "thing",
+            "info": {
+              "type": "TagEngineInfo",
+              "id": "[uuid]",
+              "sketch": "[uuid]",
+              "path": {
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+                "type": "ToPoint"
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+              "surface": {
                 "faceId": "[uuid]",
                 "id": "[uuid]",
                 "sourceRange": [
@@ -48,19 +277,51 @@ description: Program memory after executing basic_fillet_cube_end.kcl
                   "value": "thing"
                 },
                 "type": "extrudePlane"
-              },
+              }
+            },
+            "__meta": [
               {
-                "faceId": "[uuid]",
-                "id": "[uuid]",
                 "sourceRange": [
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+                  92,
+                  98,
                   0
+                ]
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+          "thing2": {
+            "type": "TagIdentifier",
+            "value": "thing2",
+            "info": {
+              "type": "TagEngineInfo",
+              "id": "[uuid]",
+              "sketch": "[uuid]",
+              "path": {
+                "__geoMeta": {
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+                    165,
+                    0
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-                "type": "extrudePlane"
+                "tag": {
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+                  "start": 157,
+                  "type": "TagDeclarator",
+                  "value": "thing2"
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                 "faceId": "[uuid]",
                 "id": "[uuid]",
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@@ -75,459 +336,185 @@ description: Program memory after executing basic_fillet_cube_end.kcl
                   "value": "thing2"
                 },
                 "type": "extrudePlane"
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-                98,
-                0
-              ]
-            }
-          ]
+        "artifactId": "[uuid]",
+        "originalId": "[uuid]",
+        "units": {
+          "type": "Mm"
         },
-        "thing2": {
-          "type": "TagIdentifier",
-          "type": "TagIdentifier",
-          "value": "thing2",
-          "info": {
-            "type": "TagEngineInfo",
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           ]
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+    "type": "TagIdentifier",
+    "value": "thing2",
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+          "type": "TagDeclarator",
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+      "surface": {
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+          "start": 157,
+          "type": "TagDeclarator",
+          "value": "thing2"
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+        "type": "extrudePlane"
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+    "__meta": [
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+    ]
+  }
 }

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

@@ -1,39 +1,268 @@
 ---
 source: kcl/src/simulation_tests.rs
-description: Program memory after executing basic_fillet_cube_start.kcl
+description: Variables in memory after executing basic_fillet_cube_start.kcl
 ---
 {
-  "environments": [
-    {
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                 "id": "[uuid]",
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@@ -48,19 +277,51 @@ description: Program memory after executing basic_fillet_cube_start.kcl
                   "value": "thing"
                 },
                 "type": "extrudePlane"
-              },
+              }
+            },
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               {
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                 "sourceRange": [
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+                  92,
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                   0
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+                "tag": {
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+                  "type": "TagDeclarator",
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@@ -75,459 +336,185 @@ description: Program memory after executing basic_fillet_cube_start.kcl
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+    ]
+  }
 }

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

@@ -1,39 +1,227 @@
 ---
 source: kcl/src/simulation_tests.rs
-description: Program memory after executing big_number_angle_to_match_length_x.kcl
+description: Variables in memory after executing big_number_angle_to_match_length_x.kcl
 ---
 {
-  "environments": [
-    {
-      "bindings": {
-        "HALF_TURN": {
-          "type": "Number",
-          "value": 180.0,
+  "HALF_TURN": {
+    "type": "Number",
+    "value": 180.0,
+    "__meta": []
+  },
+  "QUARTER_TURN": {
+    "type": "Number",
+    "value": 90.0,
+    "__meta": []
+  },
+  "THREE_QUARTER_TURN": {
+    "type": "Number",
+    "value": 270.0,
+    "__meta": []
+  },
+  "ZERO": {
+    "type": "Number",
+    "value": 0.0,
+    "__meta": []
+  },
+  "part001": {
+    "type": "Solid",
+    "value": {
+      "type": "Solid",
+      "id": "[uuid]",
+      "artifactId": "[uuid]",
+      "value": [
+        {
+          "faceId": "[uuid]",
+          "id": "[uuid]",
+          "sourceRange": [
+            66,
+            101,
+            0
+          ],
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src/wasm-lib/kcl/tests/big_number_angle_to_match_length_y/program_memory.snap

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

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

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

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 ---
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 }

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

@@ -1,171 +1,157 @@
 ---
 source: kcl/src/simulation_tests.rs
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-snapshot_kind: text
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src/wasm-lib/kcl/tests/comparisons/program_memory.snap

@@ -1,39 +1,26 @@
 ---
 source: kcl/src/simulation_tests.rs
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+description: Variables in memory after executing comparisons.kcl
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src/wasm-lib/kcl/tests/computed_var/program_memory.snap

@@ -1,197 +1,184 @@
 ---
 source: kcl/src/simulation_tests.rs
-description: Program memory after executing computed_var.kcl
+description: Variables in memory after executing computed_var.kcl
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src/wasm-lib/kcl/tests/double_map_fn/program_memory.snap

@@ -1,277 +1,243 @@
 ---
 source: kcl/src/simulation_tests.rs
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+description: Variables in memory after executing double_map_fn.kcl
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src/wasm-lib/kcl/tests/helix_ccw/program_memory.snap

@@ -1,171 +1,157 @@
 ---
 source: kcl/src/simulation_tests.rs
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-snapshot_kind: text
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src/wasm-lib/kcl/tests/helix_simple/program_memory.snap

@@ -1,34 +1,178 @@
 ---
 source: kcl/src/simulation_tests.rs
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-snapshot_kind: text
+description: Variables in memory after executing helix_simple.kcl
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@@ -71,180 +215,22 @@ snapshot_kind: text
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src/wasm-lib/kcl/tests/if_else/program_memory.snap

@@ -1,78 +1,65 @@
 ---
 source: kcl/src/simulation_tests.rs
-description: Program memory after executing if_else.kcl
+description: Variables in memory after executing if_else.kcl
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src/wasm-lib/kcl/tests/import_constant/program_memory.snap

@@ -1,91 +1,39 @@
 ---
 source: kcl/src/simulation_tests.rs
-description: Program memory after executing import_constant.kcl
+description: Variables in memory after executing import_constant.kcl
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src/wasm-lib/kcl/tests/import_export/program_memory.snap

@@ -1,130 +1,39 @@
 ---
 source: kcl/src/simulation_tests.rs
-description: Program memory after executing import_export.kcl
+description: Variables in memory after executing import_export.kcl
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 }

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

@@ -1,68 +1,55 @@
 ---
 source: kcl/src/simulation_tests.rs
-description: Program memory after executing import_foreign.kcl
+description: Variables in memory after executing import_foreign.kcl
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src/wasm-lib/kcl/tests/import_function_not_sketch/program_memory.snap

@@ -1,592 +1,140 @@
 ---
 source: kcl/src/simulation_tests.rs
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src/wasm-lib/kcl/tests/import_glob/program_memory.snap

@@ -1,200 +1,88 @@
 ---
 source: kcl/src/simulation_tests.rs
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src/wasm-lib/kcl/tests/import_side_effect/program_memory.snap

@@ -1,277 +1,75 @@
 ---
 source: kcl/src/simulation_tests.rs
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+description: Variables in memory after executing import_side_effect.kcl
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src/wasm-lib/kcl/tests/import_whole/program_memory.snap

@@ -1,210 +1,170 @@
 ---
 source: kcl/src/simulation_tests.rs
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src/wasm-lib/kcl/tests/index_of_array/program_memory.snap

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

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

@@ -1,177 +1,143 @@
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 source: kcl/src/simulation_tests.rs
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src/wasm-lib/kcl/tests/neg_xz_plane/program_memory.snap

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

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

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

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

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

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

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-            "sketch": {
-              "type": "Sketch",
+        {
+          "faceId": "[uuid]",
+          "id": "[uuid]",
+          "sourceRange": [
+            115,
+            135,
+            0
+          ],
+          "tag": null,
+          "type": "extrudePlane"
+        }
+      ],
+      "sketch": {
+        "type": "Sketch",
+        "id": "[uuid]",
+        "paths": [
+          {
+            "__geoMeta": {
               "id": "[uuid]",
-              "paths": [
-                {
-                  "__geoMeta": {
-                    "id": "[uuid]",
-                    "sourceRange": [
-                      39,
-                      58,
-                      0
-                    ]
-                  },
-                  "from": [
-                    0.0,
-                    0.0
-                  ],
-                  "tag": null,
-                  "to": [
-                    0.0,
-                    10.0
-                  ],
-                  "type": "ToPoint"
-                },
-                {
-                  "__geoMeta": {
-                    "id": "[uuid]",
-                    "sourceRange": [
-                      64,
-                      109,
-                      0
-                    ]
-                  },
-                  "ccw": true,
-                  "center": [
-                    -5.0,
-                    10.0
-                  ],
-                  "from": [
-                    0.0,
-                    10.0
-                  ],
-                  "tag": null,
-                  "to": [
-                    -5.0,
-                    15.0
-                  ],
-                  "type": "TangentialArc"
-                },
-                {
-                  "__geoMeta": {
-                    "id": "[uuid]",
-                    "sourceRange": [
-                      115,
-                      135,
-                      0
-                    ]
-                  },
-                  "from": [
-                    -5.0,
-                    15.0
-                  ],
-                  "tag": null,
-                  "to": [
-                    0.0,
-                    0.0
-                  ],
-                  "type": "ToPoint"
-                }
-              ],
-              "on": {
-                "type": "plane",
-                "id": "[uuid]",
-                "artifactId": "[uuid]",
-                "value": "XY",
-                "origin": {
-                  "x": 0.0,
-                  "y": 0.0,
-                  "z": 0.0
-                },
-                "xAxis": {
-                  "x": 1.0,
-                  "y": 0.0,
-                  "z": 0.0
-                },
-                "yAxis": {
-                  "x": 0.0,
-                  "y": 1.0,
-                  "z": 0.0
-                },
-                "zAxis": {
-                  "x": 0.0,
-                  "y": 0.0,
-                  "z": 1.0
-                },
-                "units": {
-                  "type": "Mm"
-                },
-                "__meta": []
-              },
-              "start": {
-                "from": [
-                  0.0,
-                  0.0
-                ],
-                "to": [
-                  0.0,
-                  0.0
-                ],
-                "tag": null,
-                "__geoMeta": {
-                  "id": "[uuid]",
-                  "sourceRange": [
-                    12,
-                    33,
-                    0
-                  ]
-                }
-              },
-              "artifactId": "[uuid]",
-              "originalId": "[uuid]",
-              "units": {
-                "type": "Mm"
-              },
-              "__meta": [
-                {
-                  "sourceRange": [
-                    12,
-                    33,
-                    0
-                  ]
-                }
+              "sourceRange": [
+                39,
+                58,
+                0
               ]
             },
-            "height": 10.0,
-            "startCapId": "[uuid]",
-            "endCapId": "[uuid]",
-            "units": {
-              "type": "Mm"
+            "from": [
+              0.0,
+              0.0
+            ],
+            "tag": null,
+            "to": [
+              0.0,
+              10.0
+            ],
+            "type": "ToPoint"
+          },
+          {
+            "__geoMeta": {
+              "id": "[uuid]",
+              "sourceRange": [
+                64,
+                109,
+                0
+              ]
             },
-            "__meta": [
-              {
-                "sourceRange": [
-                  12,
-                  33,
-                  0
-                ]
-              }
+            "ccw": true,
+            "center": [
+              -5.0,
+              10.0
+            ],
+            "from": [
+              0.0,
+              10.0
+            ],
+            "tag": null,
+            "to": [
+              -5.0,
+              15.0
+            ],
+            "type": "TangentialArc"
+          },
+          {
+            "__geoMeta": {
+              "id": "[uuid]",
+              "sourceRange": [
+                115,
+                135,
+                0
+              ]
+            },
+            "from": [
+              -5.0,
+              15.0
+            ],
+            "tag": null,
+            "to": [
+              0.0,
+              0.0
+            ],
+            "type": "ToPoint"
+          }
+        ],
+        "on": {
+          "type": "plane",
+          "id": "[uuid]",
+          "artifactId": "[uuid]",
+          "value": "XY",
+          "origin": {
+            "x": 0.0,
+            "y": 0.0,
+            "z": 0.0
+          },
+          "xAxis": {
+            "x": 1.0,
+            "y": 0.0,
+            "z": 0.0
+          },
+          "yAxis": {
+            "x": 0.0,
+            "y": 1.0,
+            "z": 0.0
+          },
+          "zAxis": {
+            "x": 0.0,
+            "y": 0.0,
+            "z": 1.0
+          },
+          "units": {
+            "type": "Mm"
+          },
+          "__meta": []
+        },
+        "start": {
+          "from": [
+            0.0,
+            0.0
+          ],
+          "to": [
+            0.0,
+            0.0
+          ],
+          "tag": null,
+          "__geoMeta": {
+            "id": "[uuid]",
+            "sourceRange": [
+              12,
+              33,
+              0
             ]
           }
-        }
+        },
+        "artifactId": "[uuid]",
+        "originalId": "[uuid]",
+        "units": {
+          "type": "Mm"
+        },
+        "__meta": [
+          {
+            "sourceRange": [
+              12,
+              33,
+              0
+            ]
+          }
+        ]
       },
-      "snapshots": [],
-      "parent": null
+      "height": 10.0,
+      "startCapId": "[uuid]",
+      "endCapId": "[uuid]",
+      "units": {
+        "type": "Mm"
+      },
+      "__meta": [
+        {
+          "sourceRange": [
+            12,
+            33,
+            0
+          ]
+        }
+      ]
     }
-  ],
-  "currentEnv": [
-    0,
-    0
-  ],
-  "callStack": []
+  }
 }

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

@@ -1,227 +1,213 @@
 ---
 source: kcl/src/simulation_tests.rs
-description: Program memory after executing xz_plane.kcl
-snapshot_kind: text
+description: Variables in memory after executing xz_plane.kcl
 ---
 {
-  "environments": [
-    {
-      "bindings": {
-        "HALF_TURN": {
-          "type": "Number",
-          "value": 180.0,
-          "__meta": []
+  "HALF_TURN": {
+    "type": "Number",
+    "value": 180.0,
+    "__meta": []
+  },
+  "QUARTER_TURN": {
+    "type": "Number",
+    "value": 90.0,
+    "__meta": []
+  },
+  "THREE_QUARTER_TURN": {
+    "type": "Number",
+    "value": 270.0,
+    "__meta": []
+  },
+  "ZERO": {
+    "type": "Number",
+    "value": 0.0,
+    "__meta": []
+  },
+  "part001": {
+    "type": "Solid",
+    "value": {
+      "type": "Solid",
+      "id": "[uuid]",
+      "artifactId": "[uuid]",
+      "value": [
+        {
+          "faceId": "[uuid]",
+          "id": "[uuid]",
+          "sourceRange": [
+            66,
+            96,
+            0
+          ],
+          "tag": null,
+          "type": "extrudePlane"
         },
-        "QUARTER_TURN": {
-          "type": "Number",
-          "value": 90.0,
-          "__meta": []
+        {
+          "faceId": "[uuid]",
+          "id": "[uuid]",
+          "sourceRange": [
+            102,
+            130,
+            0
+          ],
+          "tag": null,
+          "type": "extrudePlane"
         },
-        "THREE_QUARTER_TURN": {
-          "type": "Number",
-          "value": 270.0,
-          "__meta": []
-        },
-        "ZERO": {
-          "type": "Number",
-          "value": 0.0,
-          "__meta": []
-        },
-        "part001": {
-          "type": "Solid",
-          "value": {
-            "type": "Solid",
-            "id": "[uuid]",
-            "artifactId": "[uuid]",
-            "value": [
-              {
-                "faceId": "[uuid]",
-                "id": "[uuid]",
-                "sourceRange": [
-                  66,
-                  96,
-                  0
-                ],
-                "tag": null,
-                "type": "extrudePlane"
-              },
-              {
-                "faceId": "[uuid]",
-                "id": "[uuid]",
-                "sourceRange": [
-                  102,
-                  130,
-                  0
-                ],
-                "tag": null,
-                "type": "extrudePlane"
-              },
-              {
-                "faceId": "[uuid]",
-                "id": "[uuid]",
-                "sourceRange": [
-                  136,
-                  144,
-                  0
-                ],
-                "tag": null,
-                "type": "extrudePlane"
-              }
-            ],
-            "sketch": {
-              "type": "Sketch",
+        {
+          "faceId": "[uuid]",
+          "id": "[uuid]",
+          "sourceRange": [
+            136,
+            144,
+            0
+          ],
+          "tag": null,
+          "type": "extrudePlane"
+        }
+      ],
+      "sketch": {
+        "type": "Sketch",
+        "id": "[uuid]",
+        "paths": [
+          {
+            "__geoMeta": {
               "id": "[uuid]",
-              "paths": [
-                {
-                  "__geoMeta": {
-                    "id": "[uuid]",
-                    "sourceRange": [
-                      66,
-                      96,
-                      0
-                    ]
-                  },
-                  "from": [
-                    0.0,
-                    0.0
-                  ],
-                  "tag": null,
-                  "to": [
-                    100.0,
-                    100.0
-                  ],
-                  "type": "ToPoint"
-                },
-                {
-                  "__geoMeta": {
-                    "id": "[uuid]",
-                    "sourceRange": [
-                      102,
-                      130,
-                      0
-                    ]
-                  },
-                  "from": [
-                    100.0,
-                    100.0
-                  ],
-                  "tag": null,
-                  "to": [
-                    100.0,
-                    0.0
-                  ],
-                  "type": "ToPoint"
-                },
-                {
-                  "__geoMeta": {
-                    "id": "[uuid]",
-                    "sourceRange": [
-                      136,
-                      144,
-                      0
-                    ]
-                  },
-                  "from": [
-                    100.0,
-                    0.0
-                  ],
-                  "tag": null,
-                  "to": [
-                    0.0,
-                    0.0
-                  ],
-                  "type": "ToPoint"
-                }
-              ],
-              "on": {
-                "type": "plane",
-                "id": "[uuid]",
-                "artifactId": "[uuid]",
-                "value": "XZ",
-                "origin": {
-                  "x": 0.0,
-                  "y": 0.0,
-                  "z": 0.0
-                },
-                "xAxis": {
-                  "x": 1.0,
-                  "y": 0.0,
-                  "z": 0.0
-                },
-                "yAxis": {
-                  "x": 0.0,
-                  "y": 0.0,
-                  "z": 1.0
-                },
-                "zAxis": {
-                  "x": 0.0,
-                  "y": -1.0,
-                  "z": 0.0
-                },
-                "units": {
-                  "type": "Mm"
-                },
-                "__meta": []
-              },
-              "start": {
-                "from": [
-                  0.0,
-                  0.0
-                ],
-                "to": [
-                  0.0,
-                  0.0
-                ],
-                "tag": null,
-                "__geoMeta": {
-                  "id": "[uuid]",
-                  "sourceRange": [
-                    35,
-                    60,
-                    0
-                  ]
-                }
-              },
-              "artifactId": "[uuid]",
-              "originalId": "[uuid]",
-              "units": {
-                "type": "Mm"
-              },
-              "__meta": [
-                {
-                  "sourceRange": [
-                    35,
-                    60,
-                    0
-                  ]
-                }
+              "sourceRange": [
+                66,
+                96,
+                0
               ]
             },
-            "height": 12.0,
-            "startCapId": "[uuid]",
-            "endCapId": "[uuid]",
-            "units": {
-              "type": "Mm"
+            "from": [
+              0.0,
+              0.0
+            ],
+            "tag": null,
+            "to": [
+              100.0,
+              100.0
+            ],
+            "type": "ToPoint"
+          },
+          {
+            "__geoMeta": {
+              "id": "[uuid]",
+              "sourceRange": [
+                102,
+                130,
+                0
+              ]
             },
-            "__meta": [
-              {
-                "sourceRange": [
-                  35,
-                  60,
-                  0
-                ]
-              }
+            "from": [
+              100.0,
+              100.0
+            ],
+            "tag": null,
+            "to": [
+              100.0,
+              0.0
+            ],
+            "type": "ToPoint"
+          },
+          {
+            "__geoMeta": {
+              "id": "[uuid]",
+              "sourceRange": [
+                136,
+                144,
+                0
+              ]
+            },
+            "from": [
+              100.0,
+              0.0
+            ],
+            "tag": null,
+            "to": [
+              0.0,
+              0.0
+            ],
+            "type": "ToPoint"
+          }
+        ],
+        "on": {
+          "type": "plane",
+          "id": "[uuid]",
+          "artifactId": "[uuid]",
+          "value": "XZ",
+          "origin": {
+            "x": 0.0,
+            "y": 0.0,
+            "z": 0.0
+          },
+          "xAxis": {
+            "x": 1.0,
+            "y": 0.0,
+            "z": 0.0
+          },
+          "yAxis": {
+            "x": 0.0,
+            "y": 0.0,
+            "z": 1.0
+          },
+          "zAxis": {
+            "x": 0.0,
+            "y": -1.0,
+            "z": 0.0
+          },
+          "units": {
+            "type": "Mm"
+          },
+          "__meta": []
+        },
+        "start": {
+          "from": [
+            0.0,
+            0.0
+          ],
+          "to": [
+            0.0,
+            0.0
+          ],
+          "tag": null,
+          "__geoMeta": {
+            "id": "[uuid]",
+            "sourceRange": [
+              35,
+              60,
+              0
             ]
           }
-        }
+        },
+        "artifactId": "[uuid]",
+        "originalId": "[uuid]",
+        "units": {
+          "type": "Mm"
+        },
+        "__meta": [
+          {
+            "sourceRange": [
+              35,
+              60,
+              0
+            ]
+          }
+        ]
       },
-      "snapshots": [],
-      "parent": null
+      "height": 12.0,
+      "startCapId": "[uuid]",
+      "endCapId": "[uuid]",
+      "units": {
+        "type": "Mm"
+      },
+      "__meta": [
+        {
+          "sourceRange": [
+            35,
+            60,
+            0
+          ]
+        }
+      ]
     }
-  ],
-  "currentEnv": [
-    0,
-    0
-  ],
-  "callStack": []
+  }
 }

src/wasm-lib/src/wasm.rs

@@ -421,18 +421,6 @@ pub fn get_tangential_arc_to_info(
     }
 }
 
-/// Create the default program memory.
-#[wasm_bindgen]
-pub fn program_memory_init() -> Result<JsValue, String> {
-    console_error_panic_hook::set_once();
-
-    let memory = kcl_lib::exec::ProgramMemory::new();
-
-    // The serde-wasm-bindgen does not work here because of weird HashMap issues so we use the
-    // gloo-serialize crate instead.
-    JsValue::from_serde(&memory).map_err(|e| e.to_string())
-}
-
 /// Get a coredump.
 #[wasm_bindgen]
 pub async fn coredump(core_dump_manager: kcl_lib::wasm_engine::CoreDumpManager) -> Result<JsValue, String> {

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

@@ -12,11 +12,11 @@ async fn setup(code: &str, name: &str) -> Result<(ExecutorContext, Program, Modu
     let ctx = kcl_lib::ExecutorContext::new_with_default_client(Default::default()).await?;
     let mut exec_state = ExecState::new(&ctx.settings);
     ctx.run(&program, &mut exec_state).await?;
+    let outcome = exec_state.to_wasm_outcome();
 
     // We need to get the sketch ID.
-    // Get the sketch ID from memory.
-    let KclValue::Sketch { value: sketch } = exec_state.memory().get(name, SourceRange::default()).unwrap() else {
-        anyhow::bail!("part001 not found in memory: {:?}", exec_state.memory());
+    let KclValue::Sketch { value: sketch } = outcome.variables.get(name).unwrap() else {
+        anyhow::bail!("part001 not found in: {:?}", outcome.variables);
     };
     let sketch_id = sketch.id;