Revert "feat(core): prevent isolate drop for CLI main worker (#18059)" (#18157)

Fixes https://github.com/denoland/deno/issues/18120
https://github.com/denoland/deno/issues/18137
https://github.com/denoland/fresh/issues/1073

This reverts commit 0cce9c2bcc.

cli/standalone.rs

@@ -301,7 +301,6 @@ pub async fn run(
     shared_array_buffer_store: None,
     compiled_wasm_module_store: None,
     stdio: Default::default(),
-    leak_isolate: true,
   };
   let mut worker = MainWorker::bootstrap_from_options(
     main_module.clone(),

cli/worker.rs

@@ -548,7 +548,6 @@ async fn create_main_worker_internal(
     shared_array_buffer_store: Some(ps.shared_array_buffer_store.clone()),
     compiled_wasm_module_store: Some(ps.compiled_wasm_module_store.clone()),
     stdio,
-    leak_isolate: !bench_or_test && ps.options.coverage_dir().is_none(),
   };
 
   let mut worker = MainWorker::bootstrap_from_options(
@@ -778,7 +777,6 @@ mod tests {
       shared_array_buffer_store: None,
       compiled_wasm_module_store: None,
       stdio: Default::default(),
-      leak_isolate: false,
     };
 
     MainWorker::bootstrap_from_options(main_module, permissions, options)

core/gotham_state.rs

@@ -76,10 +76,6 @@ impl GothamState {
   pub fn take<T: 'static>(&mut self) -> T {
     self.try_take().unwrap_or_else(|| missing::<T>())
   }
-
-  pub fn clear(&mut self) {
-    self.data.clear();
-  }
 }
 
 fn missing<T: 'static>() -> ! {

core/ops.rs

@@ -179,10 +179,6 @@ impl OpState {
       tracker: OpsTracker::new(ops_count),
     }
   }
-
-  pub fn clear_state(&mut self) {
-    self.gotham_state.clear();
-  }
 }
 
 impl Deref for OpState {

core/runtime.rs

@@ -92,9 +92,6 @@ pub struct JsRuntime {
   event_loop_middlewares: Vec<Box<OpEventLoopFn>>,
   // Marks if this is considered the top-level runtime. Used only be inspector.
   is_main: bool,
-  // Marks if it's OK to leak the current isolate. Use only by the
-  // CLI main worker.
-  leak_isolate: bool,
 }
 
 pub(crate) struct DynImportModEvaluate {
@@ -299,10 +296,6 @@ pub struct RuntimeOptions {
   /// Describe if this is the main runtime instance, used by debuggers in some
   /// situation - like disconnecting when program finishes running.
   pub is_main: bool,
-
-  /// Whether it is OK to leak the V8 isolate. Only to be used by CLI
-  /// top-level runtime.
-  pub leak_isolate: bool,
 }
 
 #[derive(Copy, Clone, PartialEq, Eq)]
@@ -336,16 +329,6 @@ impl Drop for JsRuntime {
     if let Some(v8_isolate) = self.v8_isolate.as_mut() {
       Self::drop_state_and_module_map(v8_isolate);
     }
-    if self.leak_isolate {
-      if let Some(v8_isolate) = self.v8_isolate.take() {
-        // Clear the GothamState. This allows final env cleanup hooks to run.
-        // Note: that OpState is cloned for every OpCtx, so we can't just drop
-        // one reference to it.
-        let rc_state = self.op_state();
-        rc_state.borrow_mut().clear_state();
-        std::mem::forget(v8_isolate);
-      }
-    }
   }
 }
 
@@ -683,7 +666,6 @@ impl JsRuntime {
       state: state_rc,
       module_map: Some(module_map_rc),
       is_main: options.is_main,
-      leak_isolate: options.leak_isolate,
     };
 
     // Init resources and ops before extensions to make sure they are

runtime/examples/hello_runtime.rs

@@ -65,7 +65,6 @@ async fn main() -> Result<(), AnyError> {
     shared_array_buffer_store: None,
     compiled_wasm_module_store: None,
     stdio: Default::default(),
-    leak_isolate: true,
   };
 
   let js_path =

runtime/worker.rs

@@ -131,7 +131,6 @@ pub struct WorkerOptions {
   /// `WebAssembly.Module` objects cannot be serialized.
   pub compiled_wasm_module_store: Option<CompiledWasmModuleStore>,
   pub stdio: Stdio,
-  pub leak_isolate: bool,
 }
 
 impl Default for WorkerOptions {
@@ -167,7 +166,6 @@ impl Default for WorkerOptions {
       startup_snapshot: Default::default(),
       bootstrap: Default::default(),
       stdio: Default::default(),
-      leak_isolate: false,
     }
   }
 }
@@ -290,7 +288,6 @@ impl MainWorker {
       extensions,
       inspector: options.maybe_inspector_server.is_some(),
       is_main: true,
-      leak_isolate: options.leak_isolate,
       ..Default::default()
     });