fix(es/helpers): Fix resolving of usingCtx helper

crates/swc_ecma_transforms_base/src/helpers/mod.rs

@@ -585,7 +585,7 @@ impl VisitMut for Marker {
 
  fn visit_mut_var_declarator(&mut self, v: &mut VarDeclarator) {
  if let Pat::Ident(i) = &mut v.name {
- if &*i.id.sym == "id" {
+ if &*i.id.sym == "id" || &*i.id.sym == "resource" {
  i.id.span.ctxt = self.base;
  self.decls.insert(i.id.sym.clone(), self.base);
  return;
@@ -690,6 +690,7 @@ let _throw1 = null;
  Default::default,
  )
  }
+
  #[test]
  fn use_strict_abort() {
  crate::tests::test_transform(
@@ -705,4 +706,84 @@ let x = 4;",
  Default::default,
  );
  }
+
+ #[test]
+ fn issue_8871() {
+ crate::tests::test_transform(
+ Default::default(),
+ |_| {
+ enable_helper!(using_ctx);
+ as_folder(inject_helpers(Mark::new()))
+ },
+ "let _throw = null",
+ r#"
+ function _using_ctx() {
+ var _disposeSuppressedError = typeof SuppressedError === "function" ? SuppressedError : function(error, suppressed) {
+ var err = new Error();
+ err.name = "SuppressedError";
+ err.suppressed = suppressed;
+ err.error = error;
+ return err;
+ }, empty = {}, stack = [];
+ function using(isAwait, value) {
+ if (value != null) {
+ if (Object(value) !== value) {
+ throw new TypeError("using declarations can only be used with objects, functions, null, or undefined.");
+ }
+ if (isAwait) {
+ var dispose = value[Symbol.asyncDispose || Symbol.for("Symbol.asyncDispose")];
+ }
+ if (dispose == null) {
+ dispose = value[Symbol.dispose || Symbol.for("Symbol.dispose")];
+ }
+ if (typeof dispose !== "function") {
+ throw new TypeError(`Property [Symbol.dispose] is not a function.`);
+ }
+ stack.push({
+ v: value,
+ d: dispose,
+ a: isAwait
+ });
+ } else if (isAwait) {
+ stack.push({
+ d: value,
+ a: isAwait
+ });
+ }
+ return value;
+ }
+ return {
+ e: empty,
+ u: using.bind(null, false),
+ a: using.bind(null, true),
+ d: function() {
+ var error = this.e;
+ function next() {
+ while(resource = stack.pop()){
+ try {
+ var resource, disposalResult = resource.d && resource.d.call(resource.v);
+ if (resource.a) {
+ return Promise.resolve(disposalResult).then(next, err);
+ }
+ } catch (e) {
+ return err(e);
+ }
+ }
+ if (error !== empty) throw error;
+ }
+ function err(e) {
+ error = error !== empty ? new _disposeSuppressedError(error, e) : e;
+ return next();
+ }
+ return next();
+ }
+ };
+ }
+
+let _throw = null;
+"#,
+ false,
+ Default::default,
+ )
+ }
 }