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node_modules/core-js/modules/esnext.disposable-stack.constructor.js

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+'use strict';
+// https://github.com/tc39/proposal-explicit-resource-management
+var $ = require('../internals/export');
+var DESCRIPTORS = require('../internals/descriptors');
+var getBuiltIn = require('../internals/get-built-in');
+var aCallable = require('../internals/a-callable');
+var anInstance = require('../internals/an-instance');
+var defineBuiltIn = require('../internals/define-built-in');
+var defineBuiltIns = require('../internals/define-built-ins');
+var defineBuiltInAccessor = require('../internals/define-built-in-accessor');
+var wellKnownSymbol = require('../internals/well-known-symbol');
+var InternalStateModule = require('../internals/internal-state');
+var addDisposableResource = require('../internals/add-disposable-resource');
+
+var SuppressedError = getBuiltIn('SuppressedError');
+var $ReferenceError = ReferenceError;
+
+var DISPOSE = wellKnownSymbol('dispose');
+var TO_STRING_TAG = wellKnownSymbol('toStringTag');
+
+var DISPOSABLE_STACK = 'DisposableStack';
+var setInternalState = InternalStateModule.set;
+var getDisposableStackInternalState = InternalStateModule.getterFor(DISPOSABLE_STACK);
+
+var HINT = 'sync-dispose';
+var DISPOSED = 'disposed';
+var PENDING = 'pending';
+
+var getPendingDisposableStackInternalState = function (stack) {
+  var internalState = getDisposableStackInternalState(stack);
+  if (internalState.state == DISPOSED) throw $ReferenceError(DISPOSABLE_STACK + ' already disposed');
+  return internalState;
+};
+
+var $DisposableStack = function DisposableStack() {
+  setInternalState(anInstance(this, DisposableStackPrototype), {
+    type: DISPOSABLE_STACK,
+    state: PENDING,
+    stack: []
+  });
+
+  if (!DESCRIPTORS) this.disposed = false;
+};
+
+var DisposableStackPrototype = $DisposableStack.prototype;
+
+defineBuiltIns(DisposableStackPrototype, {
+  dispose: function dispose() {
+    var internalState = getDisposableStackInternalState(this);
+    if (internalState.state == DISPOSED) return;
+    internalState.state = DISPOSED;
+    if (!DESCRIPTORS) this.disposed = true;
+    var stack = internalState.stack;
+    var i = stack.length;
+    var thrown = false;
+    var suppressed;
+    while (i) {
+      var disposeMethod = stack[--i];
+      stack[i] = null;
+      try {
+        disposeMethod();
+      } catch (errorResult) {
+        if (thrown) {
+          suppressed = new SuppressedError(errorResult, suppressed);
+        } else {
+          thrown = true;
+          suppressed = errorResult;
+        }
+      }
+    }
+    internalState.stack = null;
+    if (thrown) throw suppressed;
+  },
+  use: function use(value) {
+    addDisposableResource(getPendingDisposableStackInternalState(this), value, HINT);
+    return value;
+  },
+  adopt: function adopt(value, onDispose) {
+    var internalState = getPendingDisposableStackInternalState(this);
+    aCallable(onDispose);
+    addDisposableResource(internalState, undefined, HINT, function () {
+      onDispose(value);
+    });
+    return value;
+  },
+  defer: function defer(onDispose) {
+    var internalState = getPendingDisposableStackInternalState(this);
+    aCallable(onDispose);
+    addDisposableResource(internalState, undefined, HINT, onDispose);
+  },
+  move: function move() {
+    var internalState = getPendingDisposableStackInternalState(this);
+    var newDisposableStack = new $DisposableStack();
+    getDisposableStackInternalState(newDisposableStack).stack = internalState.stack;
+    internalState.stack = [];
+    internalState.state = DISPOSED;
+    if (!DESCRIPTORS) this.disposed = true;
+    return newDisposableStack;
+  }
+});
+
+if (DESCRIPTORS) defineBuiltInAccessor(DisposableStackPrototype, 'disposed', {
+  configurable: true,
+  get: function disposed() {
+    return getDisposableStackInternalState(this).state == DISPOSED;
+  }
+});
+
+defineBuiltIn(DisposableStackPrototype, DISPOSE, DisposableStackPrototype.dispose, { name: 'dispose' });
+defineBuiltIn(DisposableStackPrototype, TO_STRING_TAG, DISPOSABLE_STACK, { nonWritable: true });
+
+$({ global: true, constructor: true }, {
+  DisposableStack: $DisposableStack
+});