feat(es/plugin): Introduce manual-tokio-runtmie to swc crate

crates/swc/Cargo.toml

@@ -47,6 +47,8 @@ plugin_transform_host_js = ["swc_plugin_runner/plugin_transform_host_js"]
 plugin_transform_host_native = [
   "swc_plugin_runner/plugin_transform_host_native",
 ]
+# Do not inject tokio runtime while running plugin transforms
+manual-tokio-runtmie = []
 
 [dependencies]
 anyhow       = { workspace = true }

crates/swc/src/plugin.rs

@@ -55,19 +55,22 @@ impl RustPlugins {
             return Ok(n);
         }
 
-        let fut = async move {
-            self.apply_inner(n).with_context(|| {
-                format!(
-                    "failed to invoke plugin on '{:?}'",
-                    self.metadata_context.filename
-                )
-            })
-        };
-        if let Ok(handle) = tokio::runtime::Handle::try_current() {
-            handle.block_on(fut)
+        if cfg!(feature = "manual-tokio-runtmie") {
+            self.apply_inner(n)
         } else {
-            tokio::runtime::Runtime::new().unwrap().block_on(fut)
+            let fut = async move { self.apply_inner(n) };
+            if let Ok(handle) = tokio::runtime::Handle::try_current() {
+                handle.block_on(fut)
+            } else {
+                tokio::runtime::Runtime::new().unwrap().block_on(fut)
+            }
         }
+        .with_context(|| {
+            format!(
+                "failed to invoke plugin on '{:?}'",
+                self.metadata_context.filename
+            )
+        })
     }
 
     #[tracing::instrument(level = "info", skip_all, name = "apply_plugins")]