fix

packages/babel-helpers/src/helpers-generated.ts

@@ -95,7 +95,7 @@ export default Object.freeze({
   ),
   usingCtx: helper(
     "7.23.0",
-    'function dispose_SuppressedError(r,e){return"undefined"!=typeof SuppressedError?dispose_SuppressedError=SuppressedError:(dispose_SuppressedError=function(r,e){this.suppressed=r,this.error=e,this.stack=(new Error).stack},dispose_SuppressedError.prototype=Object.create(Error.prototype,{constructor:{value:dispose_SuppressedError,writable:!0,configurable:!0}})),new dispose_SuppressedError(r,e)}export default function _usingCtx(){var r={};return{s:[],e:r,using:function(r,e){if(null==r)return r;if("object"!=typeof r)throw new TypeError("using declarations can only be used with objects, null, or undefined.");if(e)var s=r[Symbol.asyncDispose||Symbol.for("Symbol.asyncDispose")];if(null==s&&(s=r[Symbol.dispose||Symbol.for("Symbol.dispose")]),"function"!=typeof s)throw new TypeError("Property [Symbol.dispose] is not a function.");return this.s.push({v:r,d:s,a:e}),r},dispose:function(){var e=this.s,s=this.e;function next(){for(;o=e.pop();)try{var o,t=o.d.call(o.v);if(o.a)return Promise.resolve(t).then(next,err)}catch(r){return err(r)}if(s!=r)throw s}function err(e){return s=s!=r?new dispose_SuppressedError(e,s):e,next()}return next()}}}',
+    'export default function _usingCtxFactory(){var r;return"undefined"!=typeof SuppressedError?r=SuppressedError:(r=function(r,e){this.suppressed=r,this.error=e,this.stack=(new Error).stack}).prototype=Object.create(Error.prototype,{constructor:{value:r,writable:!0,configurable:!0}}),(_usingCtxFactory=function(){var e={},o=[];return{e:e,u:function(r,e){if(null==r)return r;if("object"!=typeof r)throw new TypeError("using declarations can only be used with objects, null, or undefined.");if(e)var t=r[Symbol.asyncDispose||Symbol.for("Symbol.asyncDispose")];if(null==t&&(t=r[Symbol.dispose||Symbol.for("Symbol.dispose")]),"function"!=typeof t)throw new TypeError("Property [Symbol.dispose] is not a function.");return o.push({v:r,d:t,a:e}),r},d:function(){var t=this.e;function next(){for(;r=o.pop();)try{var r,n=r.d.call(r.v);if(r.a)return Promise.resolve(n).then(next,err)}catch(r){return err(r)}if(t!=e)throw t}function err(o){return t=t!=e?new r(o,t):o,next()}return next()}}})()}',
   ),
   wrapRegExp: helper(
     "7.19.0",

packages/babel-helpers/src/helpers/usingCtx.js

@@ -1,6 +1,7 @@
 /* @minVersion 7.23.0 */
 
-function dispose_SuppressedError(suppressed, error) {
+export default function _usingCtxFactory() {
+  var dispose_SuppressedError;
   if (typeof SuppressedError !== "undefined") {
     // eslint-disable-next-line no-undef
     dispose_SuppressedError = SuppressedError;
@@ -18,59 +19,60 @@ function dispose_SuppressedError(suppressed, error) {
       },
     });
   }
-  return new dispose_SuppressedError(suppressed, error);
-}
 
-export default function _usingCtx() {
-  var empty = {};
-  return {
-    s: [], // stack
-    e: empty, // error
-    using: function (value, isAwait) {
-      if (value === null || value === void 0) return value;
-      if (typeof value !== "object") {
-        throw new TypeError(
-          "using declarations can only be used with objects, null, or undefined."
-        );
-      }
-      // core-js-pure uses Symbol.for for polyfilling well-known symbols
-      if (isAwait) {
-        var dispose =
-          value[Symbol.asyncDispose || Symbol.for("Symbol.asyncDispose")];
-      }
-      if (dispose === null || dispose === void 0) {
-        dispose = value[Symbol.dispose || Symbol.for("Symbol.dispose")];
-      }
-      if (typeof dispose !== "function") {
-        throw new TypeError(`Property [Symbol.dispose] is not a function.`);
-      }
-      this.s.push({ v: value, d: dispose, a: isAwait });
-      return value;
-    },
-    dispose: function () {
-      var stack = this.s,
-        error = this.e;
+  return (_usingCtxFactory = function _usingCtx() {
+    var empty = {},
+      stack = [];
+    return {
+      // error
+      e: empty,
+      // using
+      u: function (value, isAwait) {
+        if (value === null || value === void 0) return value;
+        if (typeof value !== "object") {
+          throw new TypeError(
+            "using declarations can only be used with objects, null, or undefined."
+          );
+        }
+        // core-js-pure uses Symbol.for for polyfilling well-known symbols
+        if (isAwait) {
+          var dispose =
+            value[Symbol.asyncDispose || Symbol.for("Symbol.asyncDispose")];
+        }
+        if (dispose === null || dispose === void 0) {
+          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 });
+        return value;
+      },
+      // dispose
+      d: function () {
+        var error = this.e;
 
-      function next() {
-        while ((r = stack.pop())) {
-          try {
-            var r,
-              p = r.d.call(r.v);
-            if (r.a) return Promise.resolve(p).then(next, err);
-          } catch (e) {
-            return err(e);
+        function next() {
+          while ((r = stack.pop())) {
+            try {
+              var r,
+                p = r.d.call(r.v);
+              if (r.a) return Promise.resolve(p).then(next, err);
+            } catch (e) {
+              return err(e);
+            }
           }
+          if (error != empty) throw error;
         }
-        if (error != empty) throw error;
-      }
 
-      function err(e) {
-        error = error != empty ? new dispose_SuppressedError(e, error) : e;
+        function err(e) {
+          error = error != empty ? new dispose_SuppressedError(e, error) : e;
 
-        return next();
-      }
+          return next();
+        }
 
-      return next();
-    },
-  };
+        return next();
+      },
+    };
+  })();
 }

packages/babel-plugin-proposal-explicit-resource-management/src/index.ts

@@ -62,15 +62,15 @@ export default declare(api => {
             const args = [decl.init];
             if (isAwaitUsing) args.push(t.booleanLiteral(true));
             decl.init = t.callExpression(
-              t.memberExpression(t.cloneNode(ctx), t.identifier("using")),
+              t.memberExpression(t.cloneNode(ctx), t.identifier("u")),
               args,
             );
           });
         }
         if (!ctx) return;
 
         let disposeCall: t.Expression = t.callExpression(
-          t.memberExpression(t.cloneNode(ctx), t.identifier("dispose")),
+          t.memberExpression(t.cloneNode(ctx), t.identifier("d")),
           [],
         );
         if (needsAwait) disposeCall = t.awaitExpression(disposeCall);

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/integration/async-to-generator/output.js

@@ -4,12 +4,12 @@ function fn() {
     yield 0;
     try {
       var _usingCtx = babelHelpers.usingCtx();
-      const x = _usingCtx.using(y, true);
+      const x = _usingCtx.u(y, true);
       yield 1;
     } catch (_) {
       _usingCtx.e = _;
     } finally {
-      yield _usingCtx.dispose();
+      yield _usingCtx.d();
     }
   })).apply(this, arguments);
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-await/mixed/output.mjs

@@ -1,10 +1,10 @@
 try {
   var _usingCtx = babelHelpers.usingCtx();
-  const a = _usingCtx.using(1);
-  const b = _usingCtx.using(2, true);
-  const c = _usingCtx.using(3);
+  const a = _usingCtx.u(1);
+  const b = _usingCtx.u(2, true);
+  const c = _usingCtx.u(3);
 } catch (_) {
   _usingCtx.e = _;
 } finally {
-  await _usingCtx.dispose();
+  await _usingCtx.d();
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-await/only-using-await/output.mjs

@@ -1,12 +1,12 @@
 try {
   var _usingCtx = babelHelpers.usingCtx();
-  const x = _usingCtx.using(obj, true);
+  const x = _usingCtx.u(obj, true);
   stmt;
-  const y = _usingCtx.using(obj, true),
-    z = _usingCtx.using(obj, true);
+  const y = _usingCtx.u(obj, true),
+    z = _usingCtx.u(obj, true);
   doSomethingWith(x, y);
 } catch (_) {
   _usingCtx.e = _;
 } finally {
-  await _usingCtx.dispose();
+  await _usingCtx.d();
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-sync/bare-block/output.js

@@ -1,9 +1,9 @@
 try {
   var _usingCtx = babelHelpers.usingCtx();
-  const x = _usingCtx.using(obj);
+  const x = _usingCtx.u(obj);
   doSomethingWith(x);
 } catch (_) {
   _usingCtx.e = _;
 } finally {
-  _usingCtx.dispose();
+  _usingCtx.d();
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-sync/for-await-head/output.mjs

@@ -1,9 +1,9 @@
 for await (const _x of y) try {
   var _usingCtx = babelHelpers.usingCtx();
-  const x = _usingCtx.using(_x);
+  const x = _usingCtx.u(_x);
   doSomethingWith(x);
 } catch (_) {
   _usingCtx.e = _;
 } finally {
-  _usingCtx.dispose();
+  _usingCtx.d();
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-sync/for-head/output.js

@@ -1,9 +1,9 @@
 for (const _x of y) try {
   var _usingCtx = babelHelpers.usingCtx();
-  const x = _usingCtx.using(_x);
+  const x = _usingCtx.u(_x);
   doSomethingWith(x);
 } catch (_) {
   _usingCtx.e = _;
 } finally {
-  _usingCtx.dispose();
+  _usingCtx.d();
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-sync/function-body/output.js

@@ -1,11 +1,11 @@
 function fn() {
   try {
     var _usingCtx = babelHelpers.usingCtx();
-    const x = _usingCtx.using(obj);
+    const x = _usingCtx.u(obj);
     return doSomethingWith(x);
   } catch (_) {
     _usingCtx.e = _;
   } finally {
-    _usingCtx.dispose();
+    _usingCtx.d();
   }
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-sync/if-body/output.js

@@ -1,9 +1,9 @@
 if (test) try {
   var _usingCtx = babelHelpers.usingCtx();
-  const x = _usingCtx.using(obj);
+  const x = _usingCtx.u(obj);
   doSomethingWith(x);
 } catch (_) {
   _usingCtx.e = _;
 } finally {
-  _usingCtx.dispose();
+  _usingCtx.d();
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-sync/multiple-nested/output.js

@@ -1,28 +1,28 @@
 try {
   var _usingCtx = babelHelpers.usingCtx();
-  const x = _usingCtx.using(obj);
+  const x = _usingCtx.u(obj);
   try {
     var _usingCtx2 = babelHelpers.usingCtx();
-    const y = _usingCtx2.using(call(() => {
+    const y = _usingCtx2.u(call(() => {
       try {
         var _usingCtx3 = babelHelpers.usingCtx();
-        const z = _usingCtx3.using(obj);
+        const z = _usingCtx3.u(obj);
         return z;
       } catch (_) {
         _usingCtx3.e = _;
       } finally {
-        _usingCtx3.dispose();
+        _usingCtx3.d();
       }
     }));
     stmt;
   } catch (_) {
     _usingCtx2.e = _;
   } finally {
-    _usingCtx2.dispose();
+    _usingCtx2.d();
   }
   stmt;
 } catch (_) {
   _usingCtx.e = _;
 } finally {
-  _usingCtx.dispose();
+  _usingCtx.d();
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-sync/multiple-same-level/output.js

@@ -1,15 +1,15 @@
 try {
   var _usingCtx = babelHelpers.usingCtx();
   stmt;
-  const x = _usingCtx.using(obj);
+  const x = _usingCtx.u(obj);
   stmt;
-  const y = _usingCtx.using(obj),
-    z = _usingCtx.using(obj);
+  const y = _usingCtx.u(obj),
+    z = _usingCtx.u(obj);
   stmt;
-  const w = _usingCtx.using(obj);
+  const w = _usingCtx.u(obj);
   doSomethingWith(x, z);
 } catch (_) {
   _usingCtx.e = _;
 } finally {
-  _usingCtx.dispose();
+  _usingCtx.d();
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-sync/static-block/output.js

@@ -2,12 +2,12 @@ class A {
   static {
     try {
       var _usingCtx = babelHelpers.usingCtx();
-      const x = _usingCtx.using(y);
+      const x = _usingCtx.u(y);
       doSomethingWith(x);
     } catch (_) {
       _usingCtx.e = _;
     } finally {
-      _usingCtx.dispose();
+      _usingCtx.d();
     }
   }
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-top-level/await-or-not-preserved/output.mjs

@@ -1,10 +1,10 @@
 export { x, y };
 try {
   var _usingCtx = babelHelpers.usingCtx();
-  var x = _usingCtx.using(A);
-  var y = _usingCtx.using(B, true);
+  var x = _usingCtx.u(A);
+  var y = _usingCtx.u(B, true);
 } catch (_) {
   _usingCtx.e = _;
 } finally {
-  await _usingCtx.dispose();
+  await _usingCtx.d();
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-top-level/hoisting-default-clas-anon/output.mjs

@@ -1,10 +1,10 @@
 export { _default as default };
 try {
   var _usingCtx = babelHelpers.usingCtx();
-  var x = _usingCtx.using(null);
+  var x = _usingCtx.u(null);
   var _default = class {};
 } catch (_) {
   _usingCtx.e = _;
 } finally {
-  _usingCtx.dispose();
+  _usingCtx.d();
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-top-level/hoisting-default-class/output.mjs

@@ -1,10 +1,10 @@
 export { C as default };
 try {
   var _usingCtx = babelHelpers.usingCtx();
-  var x = _usingCtx.using(null);
+  var x = _usingCtx.u(null);
   var C = class {};
 } catch (_) {
   _usingCtx.e = _;
 } finally {
-  _usingCtx.dispose();
+  _usingCtx.d();
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-top-level/hoisting-default-expr/output.mjs

@@ -1,10 +1,10 @@
 export { _default as default };
 try {
   var _usingCtx = babelHelpers.usingCtx();
-  var x = _usingCtx.using(null);
+  var x = _usingCtx.u(null);
   var _default = doSomething();
 } catch (_) {
   _usingCtx.e = _;
 } finally {
-  _usingCtx.dispose();
+  _usingCtx.d();
 }

packages/babel-plugin-proposal-explicit-resource-management/test/fixtures/transform-top-level/hoisting-default-fn-anon/output.mjs

@@ -1,9 +1,9 @@
 export default function fn() {}
 try {
   var _usingCtx = babelHelpers.usingCtx();
-  var x = _usingCtx.using(null);
+  var x = _usingCtx.u(null);
 } catch (_) {
   _usingCtx.e = _;
 } finally {
-  _usingCtx.dispose();
+  _usingCtx.d();
 }