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Diffstat (limited to 'node_modules/bluebird/js/release/finally.js')
-rw-r--r--node_modules/bluebird/js/release/finally.js111
1 files changed, 111 insertions, 0 deletions
diff --git a/node_modules/bluebird/js/release/finally.js b/node_modules/bluebird/js/release/finally.js
new file mode 100644
index 000000000..371791121
--- /dev/null
+++ b/node_modules/bluebird/js/release/finally.js
@@ -0,0 +1,111 @@
+"use strict";
+module.exports = function(Promise, tryConvertToPromise) {
+var util = require("./util");
+var CancellationError = Promise.CancellationError;
+var errorObj = util.errorObj;
+
+function PassThroughHandlerContext(promise, type, handler) {
+ this.promise = promise;
+ this.type = type;
+ this.handler = handler;
+ this.called = false;
+ this.cancelPromise = null;
+}
+
+PassThroughHandlerContext.prototype.isFinallyHandler = function() {
+ return this.type === 0;
+};
+
+function FinallyHandlerCancelReaction(finallyHandler) {
+ this.finallyHandler = finallyHandler;
+}
+
+FinallyHandlerCancelReaction.prototype._resultCancelled = function() {
+ checkCancel(this.finallyHandler);
+};
+
+function checkCancel(ctx, reason) {
+ if (ctx.cancelPromise != null) {
+ if (arguments.length > 1) {
+ ctx.cancelPromise._reject(reason);
+ } else {
+ ctx.cancelPromise._cancel();
+ }
+ ctx.cancelPromise = null;
+ return true;
+ }
+ return false;
+}
+
+function succeed() {
+ return finallyHandler.call(this, this.promise._target()._settledValue());
+}
+function fail(reason) {
+ if (checkCancel(this, reason)) return;
+ errorObj.e = reason;
+ return errorObj;
+}
+function finallyHandler(reasonOrValue) {
+ var promise = this.promise;
+ var handler = this.handler;
+
+ if (!this.called) {
+ this.called = true;
+ var ret = this.isFinallyHandler()
+ ? handler.call(promise._boundValue())
+ : handler.call(promise._boundValue(), reasonOrValue);
+ if (ret !== undefined) {
+ promise._setReturnedNonUndefined();
+ var maybePromise = tryConvertToPromise(ret, promise);
+ if (maybePromise instanceof Promise) {
+ if (this.cancelPromise != null) {
+ if (maybePromise._isCancelled()) {
+ var reason =
+ new CancellationError("late cancellation observer");
+ promise._attachExtraTrace(reason);
+ errorObj.e = reason;
+ return errorObj;
+ } else if (maybePromise.isPending()) {
+ maybePromise._attachCancellationCallback(
+ new FinallyHandlerCancelReaction(this));
+ }
+ }
+ return maybePromise._then(
+ succeed, fail, undefined, this, undefined);
+ }
+ }
+ }
+
+ if (promise.isRejected()) {
+ checkCancel(this);
+ errorObj.e = reasonOrValue;
+ return errorObj;
+ } else {
+ checkCancel(this);
+ return reasonOrValue;
+ }
+}
+
+Promise.prototype._passThrough = function(handler, type, success, fail) {
+ if (typeof handler !== "function") return this.then();
+ return this._then(success,
+ fail,
+ undefined,
+ new PassThroughHandlerContext(this, type, handler),
+ undefined);
+};
+
+Promise.prototype.lastly =
+Promise.prototype["finally"] = function (handler) {
+ return this._passThrough(handler,
+ 0,
+ finallyHandler,
+ finallyHandler);
+};
+
+Promise.prototype.tap = function (handler) {
+ return this._passThrough(handler, 1, finallyHandler);
+};
+
+return PassThroughHandlerContext;
+};