Commit dispose helper

.gitignore

@@ -29,6 +29,7 @@ package-lock.json
 /packages/babel-core/src/vendor/*.ts
 
 /packages/babel-runtime/helpers/*.js
+!/packages/babel-runtime/helpers/dispose.js
 !/packages/babel-runtime/helpers/toArray.js
 !/packages/babel-runtime/helpers/iterableToArray.js
 !/packages/babel-runtime/helpers/possibleConstructorReturn.js
@@ -55,6 +56,7 @@ package-lock.json
 !/packages/babel-runtime-corejs2/core-js/map.js
 
 /packages/babel-runtime-corejs3/helpers/*.js
+!/packages/babel-runtime-corejs3/helpers/dispose.js
 !/packages/babel-runtime-corejs3/helpers/possibleConstructorReturn.js
 /packages/babel-runtime-corejs3/helpers/esm/*.js
 !/packages/babel-runtime-corejs3/helpers/esm/possibleConstructorReturn.js

packages/babel-runtime-corejs3/helpers/dispose.js

@@ -0,0 +1,33 @@
+var _Object$create = require("@babel/runtime-corejs3/core-js/object/create");
+var _Promise = require("@babel/runtime-corejs3/core-js/promise");
+function dispose_SuppressedError(suppressed, error) {
+  return dispose_SuppressedError = function dispose_SuppressedError(suppressed, error) {
+    this.suppressed = suppressed, this.error = error, this.stack = new Error().stack;
+  }, dispose_SuppressedError.prototype = _Object$create(Error.prototype, {
+    constructor: {
+      value: dispose_SuppressedError,
+      writable: !0,
+      configurable: !0
+    }
+  }), new dispose_SuppressedError(suppressed, error);
+}
+function _dispose(stack, error, hasError, SuppressedError) {
+  function next() {
+    if (0 !== stack.length) {
+      var r = stack.pop();
+      if (r.a) return _Promise.resolve(r.d.call(r.v)).then(next, err);
+      try {
+        r.d.call(r.v);
+      } catch (e) {
+        return err(e);
+      }
+      return next();
+    }
+    if (hasError) throw error;
+  }
+  function err(e) {
+    return error = hasError ? new (SuppressedError || dispose_SuppressedError)(e, error) : e, hasError = !0, next();
+  }
+  return next();
+}
+module.exports = _dispose, module.exports.__esModule = true, module.exports["default"] = module.exports;

packages/babel-runtime/helpers/dispose.js

@@ -0,0 +1,31 @@
+function dispose_SuppressedError(suppressed, error) {
+  return dispose_SuppressedError = function dispose_SuppressedError(suppressed, error) {
+    this.suppressed = suppressed, this.error = error, this.stack = new Error().stack;
+  }, dispose_SuppressedError.prototype = Object.create(Error.prototype, {
+    constructor: {
+      value: dispose_SuppressedError,
+      writable: !0,
+      configurable: !0
+    }
+  }), new dispose_SuppressedError(suppressed, error);
+}
+function _dispose(stack, error, hasError, SuppressedError) {
+  function next() {
+    if (0 !== stack.length) {
+      var r = stack.pop();
+      if (r.a) return Promise.resolve(r.d.call(r.v)).then(next, err);
+      try {
+        r.d.call(r.v);
+      } catch (e) {
+        return err(e);
+      }
+      return next();
+    }
+    if (hasError) throw error;
+  }
+  function err(e) {
+    return error = hasError ? new (SuppressedError || dispose_SuppressedError)(e, error) : e, hasError = !0, next();
+  }
+  return next();
+}
+module.exports = _dispose, module.exports.__esModule = true, module.exports["default"] = module.exports;