Only send one SetSceneUnits call (#1981)

We only intended to send this once, at the start of execution. But the execute function is recursive, so it was sending many SetSceneUnits calls.

Fixes https://github.com/KittyCAD/modeling-app/issues/1971

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

@@ -994,9 +994,8 @@ impl ExecutorContext {
     }
 }
 
-/// Execute a AST's program.
-#[async_recursion(?Send)]
-pub async fn execute(
+/// Execute an AST's program.
+pub async fn execute_outer(
     program: crate::ast::types::Program,
     memory: &mut ProgramMemory,
     _options: BodyType,
@@ -1013,7 +1012,17 @@ pub async fn execute(
             },
         )
         .await?;
+    execute(program, memory, _options, ctx).await
+}
 
+/// Execute an AST's program.
+#[async_recursion(?Send)]
+pub(crate) async fn execute(
+    program: crate::ast::types::Program,
+    memory: &mut ProgramMemory,
+    _options: BodyType,
+    ctx: &ExecutorContext,
+) -> Result<ProgramMemory, KclError> {
     let pipe_info = PipeInfo::default();
 
     // Iterate over the body of the program.
@@ -1299,7 +1308,7 @@ mod tests {
             units: kittycad::types::UnitLength::Mm,
             is_mock: false,
         };
-        let memory = execute(program, &mut mem, BodyType::Root, &ctx).await?;
+        let memory = execute_outer(program, &mut mem, BodyType::Root, &ctx).await?;
 
         Ok(memory)
     }

src/wasm-lib/src/wasm.rs

@@ -41,7 +41,7 @@ pub async fn execute_wasm(
         is_mock,
     };
 
-    let memory = kcl_lib::executor::execute(program, &mut mem, kcl_lib::executor::BodyType::Root, &ctx)
+    let memory = kcl_lib::executor::execute_outer(program, &mut mem, kcl_lib::executor::BodyType::Root, &ctx)
         .await
         .map_err(String::from)?;
     // The serde-wasm-bindgen does not work here because of weird HashMap issues so we use the

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

@@ -41,7 +41,7 @@ async fn execute_and_snapshot(code: &str, units: kittycad::types::UnitLength) ->
     let mut mem: kcl_lib::executor::ProgramMemory = Default::default();
     let ctx = kcl_lib::executor::ExecutorContext::new(ws, units.clone()).await?;
 
-    let _ = kcl_lib::executor::execute(program, &mut mem, kcl_lib::executor::BodyType::Root, &ctx).await?;
+    let _ = kcl_lib::executor::execute_outer(program, &mut mem, kcl_lib::executor::BodyType::Root, &ctx).await?;
 
     let (x, y) = kcl_lib::std::utils::get_camera_zoom_magnitude_per_unit_length(units);
 

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

@@ -41,7 +41,8 @@ async fn setup(code: &str, name: &str) -> Result<(ExecutorContext, Program, uuid
     let program = parser.ast()?;
     let mut mem: kcl_lib::executor::ProgramMemory = Default::default();
     let ctx = kcl_lib::executor::ExecutorContext::new(ws, kittycad::types::UnitLength::Mm).await?;
-    let memory = kcl_lib::executor::execute(program.clone(), &mut mem, kcl_lib::executor::BodyType::Root, &ctx).await?;
+    let memory =
+        kcl_lib::executor::execute_outer(program.clone(), &mut mem, kcl_lib::executor::BodyType::Root, &ctx).await?;
 
     // We need to get the sketch ID.
     // Get the sketch group ID from memory.