commit

node_modules/bluebird/js/main/finally.js

@@ -0,0 +1,98 @@
+"use strict";
+module.exports = function(Promise, NEXT_FILTER, tryConvertToPromise) {
+var util = require("./util.js");
+var isPrimitive = util.isPrimitive;
+var thrower = util.thrower;
+
+function returnThis() {
+    return this;
+}
+function throwThis() {
+    throw this;
+}
+function return$(r) {
+    return function() {
+        return r;
+    };
+}
+function throw$(r) {
+    return function() {
+        throw r;
+    };
+}
+function promisedFinally(ret, reasonOrValue, isFulfilled) {
+    var then;
+    if (isPrimitive(reasonOrValue)) {
+        then = isFulfilled ? return$(reasonOrValue) : throw$(reasonOrValue);
+    } else {
+        then = isFulfilled ? returnThis : throwThis;
+    }
+    return ret._then(then, thrower, undefined, reasonOrValue, undefined);
+}
+
+function finallyHandler(reasonOrValue) {
+    var promise = this.promise;
+    var handler = this.handler;
+
+    var ret = promise._isBound()
+                    ? handler.call(promise._boundValue())
+                    : handler();
+
+    if (ret !== undefined) {
+        var maybePromise = tryConvertToPromise(ret, promise);
+        if (maybePromise instanceof Promise) {
+            maybePromise = maybePromise._target();
+            return promisedFinally(maybePromise, reasonOrValue,
+                                    promise.isFulfilled());
+        }
+    }
+
+    if (promise.isRejected()) {
+        NEXT_FILTER.e = reasonOrValue;
+        return NEXT_FILTER;
+    } else {
+        return reasonOrValue;
+    }
+}
+
+function tapHandler(value) {
+    var promise = this.promise;
+    var handler = this.handler;
+
+    var ret = promise._isBound()
+                    ? handler.call(promise._boundValue(), value)
+                    : handler(value);
+
+    if (ret !== undefined) {
+        var maybePromise = tryConvertToPromise(ret, promise);
+        if (maybePromise instanceof Promise) {
+            maybePromise = maybePromise._target();
+            return promisedFinally(maybePromise, value, true);
+        }
+    }
+    return value;
+}
+
+Promise.prototype._passThroughHandler = function (handler, isFinally) {
+    if (typeof handler !== "function") return this.then();
+
+    var promiseAndHandler = {
+        promise: this,
+        handler: handler
+    };
+
+    return this._then(
+            isFinally ? finallyHandler : tapHandler,
+            isFinally ? finallyHandler : undefined, undefined,
+            promiseAndHandler, undefined);
+};
+
+Promise.prototype.lastly =
+Promise.prototype["finally"] = function (handler) {
+    return this._passThroughHandler(handler, true);
+};
+
+Promise.prototype.tap = function (handler) {
+    return this._passThroughHandler(handler, false);
+};
+};