1 files changed, 48 insertions, 0 deletions
diff --git a/node_modules/bluebird/js/main/cancel.js b/node_modules/bluebird/js/main/cancel.js
new file mode 100644
index 000000000..9eb40b6fb
--- /dev/null
+++ b/node_modules/bluebird/js/main/cancel.js
@@ -0,0 +1,48 @@
+"use strict";
+module.exports = function(Promise) {
+var errors = require("./errors.js");
+var async = require("./async.js");
+var CancellationError = errors.CancellationError;
+
+Promise.prototype._cancel = function (reason) {
+    if (!this.isCancellable()) return this;
+    var parent;
+    var promiseToReject = this;
+    while ((parent = promiseToReject._cancellationParent) !== undefined &&
+        parent.isCancellable()) {
+        promiseToReject = parent;
+    }
+    this._unsetCancellable();
+    promiseToReject._target()._rejectCallback(reason, false, true);
+};
+
+Promise.prototype.cancel = function (reason) {
+    if (!this.isCancellable()) return this;
+    if (reason === undefined) reason = new CancellationError();
+    async.invokeLater(this._cancel, this, reason);
+    return this;
+};
+
+Promise.prototype.cancellable = function () {
+    if (this._cancellable()) return this;
+    async.enableTrampoline();
+    this._setCancellable();
+    this._cancellationParent = undefined;
+    return this;
+};
+
+Promise.prototype.uncancellable = function () {
+    var ret = this.then();
+    ret._unsetCancellable();
+    return ret;
+};
+
+Promise.prototype.fork = function (didFulfill, didReject, didProgress) {
+    var ret = this._then(didFulfill, didReject, didProgress,
+                         undefined, undefined);
+
+    ret._setCancellable();
+    ret._cancellationParent = undefined;
+    return ret;
+};
+};