diff options
Diffstat (limited to 'desktop/node_modules/bluebird/js/release/cancel.js')
-rw-r--r-- | desktop/node_modules/bluebird/js/release/cancel.js | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/desktop/node_modules/bluebird/js/release/cancel.js b/desktop/node_modules/bluebird/js/release/cancel.js new file mode 100644 index 0000000..7a12415 --- /dev/null +++ b/desktop/node_modules/bluebird/js/release/cancel.js @@ -0,0 +1,129 @@ +"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(); + promise._setWillBeCancelled(); + 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.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(); +}; + +}; |