Version 1

[yaffs-website] / node_modules / bluebird / js / release / cancel.js

diff --git a/node_modules/bluebird/js/release/cancel.js b/node_modules/bluebird/js/release/cancel.js
new file mode 100644 (file)
index 0000000..5ed6bc9
--- /dev/null
+++ b/node_modules/bluebird/js/release/cancel.js
@@ -0,0 +1,125 @@
+"use strict";
+module.exports = function(Promise, PromiseArray, apiRejection, debug) {
+var util = require("./util");
+var tryCatch = util.tryCatch;
+var errorObj = util.errorObj;
+var async = Promise._async;
+
+Promise.prototype["break"] = Promise.prototype.cancel = function() {
+    if (!debug.cancellation()) return this._warn("cancellation is disabled");
+
+    var promise = this;
+    var child = promise;
+    while (promise.isCancellable()) {
+        if (!promise._cancelBy(child)) {
+            if (child._isFollowing()) {
+                child._followee().cancel();
+            } else {
+                child._cancelBranched();
+            }
+            break;
+        }
+
+        var parent = promise._cancellationParent;
+        if (parent == null || !parent.isCancellable()) {
+            if (promise._isFollowing()) {
+                promise._followee().cancel();
+            } else {
+                promise._cancelBranched();
+            }
+            break;
+        } else {
+            if (promise._isFollowing()) promise._followee().cancel();
+            child = promise;
+            promise = parent;
+        }
+    }
+};
+
+Promise.prototype._branchHasCancelled = function() {
+    this._branchesRemainingToCancel--;
+};
+
+Promise.prototype._enoughBranchesHaveCancelled = function() {
+    return this._branchesRemainingToCancel === undefined ||
+           this._branchesRemainingToCancel <= 0;
+};
+
+Promise.prototype._cancelBy = function(canceller) {
+    if (canceller === this) {
+        this._branchesRemainingToCancel = 0;
+        this._invokeOnCancel();
+        return true;
+    } else {
+        this._branchHasCancelled();
+        if (this._enoughBranchesHaveCancelled()) {
+            this._invokeOnCancel();
+            return true;
+        }
+    }
+    return false;
+};
+
+Promise.prototype._cancelBranched = function() {
+    if (this._enoughBranchesHaveCancelled()) {
+        this._cancel();
+    }
+};
+
+Promise.prototype._cancel = function() {
+    if (!this.isCancellable()) return;
+
+    this._setCancelled();
+    async.invoke(this._cancelPromises, this, undefined);
+};
+
+Promise.prototype._cancelPromises = function() {
+    if (this._length() > 0) this._settlePromises();
+};
+
+Promise.prototype._unsetOnCancel = function() {
+    this._onCancelField = undefined;
+};
+
+Promise.prototype.isCancellable = function() {
+    return this.isPending() && !this.isCancelled();
+};
+
+Promise.prototype._doInvokeOnCancel = function(onCancelCallback, internalOnly) {
+    if (util.isArray(onCancelCallback)) {
+        for (var i = 0; i < onCancelCallback.length; ++i) {
+            this._doInvokeOnCancel(onCancelCallback[i], internalOnly);
+        }
+    } else if (onCancelCallback !== undefined) {
+        if (typeof onCancelCallback === "function") {
+            if (!internalOnly) {
+                var e = tryCatch(onCancelCallback).call(this._boundValue());
+                if (e === errorObj) {
+                    this._attachExtraTrace(e.e);
+                    async.throwLater(e.e);
+                }
+            }
+        } else {
+            onCancelCallback._resultCancelled(this);
+        }
+    }
+};
+
+Promise.prototype._invokeOnCancel = function() {
+    var onCancelCallback = this._onCancel();
+    this._unsetOnCancel();
+    async.invoke(this._doInvokeOnCancel, this, onCancelCallback);
+};
+
+Promise.prototype._invokeInternalOnCancel = function() {
+    if (this.isCancellable()) {
+        this._doInvokeOnCancel(this._onCancel(), true);
+        this._unsetOnCancel();
+    }
+};
+
+Promise.prototype._resultCancelled = function() {
+    this.cancel();
+};
+
+};