Version 1

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

diff --git a/node_modules/bluebird/js/release/finally.js b/node_modules/bluebird/js/release/finally.js
new file mode 100644 (file)
index 0000000..ec92610
--- /dev/null
+++ b/node_modules/bluebird/js/release/finally.js
@@ -0,0 +1,107 @@
+"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;
+}
+
+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.type === 0
+            ? 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;
+};