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-rw-r--r--js/codeq.js83
-rw-r--r--js/codeq/comms.js64
-rw-r--r--js/codeq/core.js33
-rw-r--r--js/codeq/login.js183
-rw-r--r--js/prolog.js122
-rw-r--r--js/q.js2051
6 files changed, 2516 insertions, 20 deletions
diff --git a/js/codeq.js b/js/codeq.js
index 472cab0..9e33bac 100644
--- a/js/codeq.js
+++ b/js/codeq.js
@@ -80,6 +80,8 @@ window.phandler = null; // TODO: this is for debug only
};
}
+ codeq.jsonize = jsonize;
+
codeq.log = {};
(function () {
var assembleOutput = function (stuff, e) {
@@ -706,7 +708,23 @@ window.phandler = null; // TODO: this is for debug only
}; // codeq.system = {
- window.start = function () {
+ /**
+ * Returns the number of Unicode code points in the given string.
+ *
+ * @param s {string}
+ * @returns {number}
+ */
+ codeq.codePointCount = function (s) {
+ var n = 0, i, code;
+ for (i = s.length - 1; i >= 0; i--) {
+ code = s.charCodeAt(i);
+ if ((code >= 0xd800) && (code < 0xe000)) i++;
+ n++;
+ }
+ return n;
+ };
+
+ $(document).ready(function () {
// var s = location.hash;
// if (s.length == 0) return; // empty hash
// if (s.charAt(0) == '#') s = s.substring(1);
@@ -724,17 +742,56 @@ window.phandler = null; // TODO: this is for debug only
width: '100%'
});*/
- codeq.system.load({
- type: 'text',
- url: 'sins.py',
- callback: function (data, status, url) {
- if (!data) return;
- var info = codeq.parseDefinition(data);
- window.phandler = codeq.createPrologHandler(info); // TODO: for debug only
- // DEBUG: phandler.processServerHints([{id:'x_must_be_female'}]);
- // DEBUG: phandler.processServerHints([{id:'popup_unknown', start: 20, end: 26}]);
- // DEBUG: phandler.processServerHints([{id:'drop_down', start: 20, end: 26, choices:['ena', 'dva', 'tri']}]);
+ var hash = location.hash,
+ error = false,
+ params, param, sid, grp, prb, i, key, j;
+
+ if (hash.length < 2) {
+ error = 'No execution parameters were provided';
+ }
+ else {
+ location.hash = '';
+ if (hash.charAt(0) == '#') hash = hash.substring(1);
+ params = hash.split('/');
+ for (i = params.length - 1; i >= 0; i--) {
+ param = params[i];
+ j = param.indexOf('=');
+ if (j < 0) continue;
+ key = param.substring(0, j);
+ switch (key) {
+ case 'sid':
+ sid = param.substring(j+1);
+ break;
+ case 'grp':
+ grp = param.substring(j+1);
+ break;
+ case 'prb':
+ prb = param.substring(j+1);
+ break;
+ }
}
- });
- };
+ if (!sid) error = 'No session ID provided';
+ else if (!grp) error = 'No problem group provided';
+ else if (!prb) error = 'No problem provided';
+ }
+
+ if (error) {
+ alert(error);
+ }
+ else {
+ codeq.sid = sid;
+ codeq.system.load({
+ type: 'text',
+ url: 'prolog/problems/' + grp + '/' + prb + '/en.py',
+ callback: function (data, status, url) {
+ if (!data) return;
+ var info = codeq.parseDefinition(data);
+ window.phandler = codeq.createPrologHandler(info, grp, prb); // TODO: for debug only
+ // DEBUG: phandler.processServerHints([{id:'x_must_be_female'}]);
+ // DEBUG: phandler.processServerHints([{id:'popup_unknown', start: 20, end: 26}]);
+ // DEBUG: phandler.processServerHints([{id:'drop_down', start: 20, end: 26, choices:['ena', 'dva', 'tri']}]);
+ }
+ });
+ }
+ });
})();
diff --git a/js/codeq/comms.js b/js/codeq/comms.js
new file mode 100644
index 0000000..fb5d348
--- /dev/null
+++ b/js/codeq/comms.js
@@ -0,0 +1,64 @@
+(function () {
+
+ var activityQueue = [];
+
+ var send = function (service, json) {
+ return Q.Promise(function (resolve, reject, notify) {
+ $.ajax({
+ 'type': 'POST',
+ 'url': codeq.urlPrefix + service,
+ 'accepts': 'application/json',
+ 'contentType': 'application/json; charset=UTF-8', // type of our request
+ 'data': json,
+ 'processData': false, // don't process outgoing data
+ 'dataType': 'json', // expected type of the response
+ 'timeout': 60000, // one minute
+ 'error': function sendErrorHandler(jqXHR, textStatus, errorThrown) {
+ reject(new Error(errorThrown || textStatus));
+ },
+ 'success': function sendSuccessHandler(data, textStatus, jqXHR) {
+ resolve(data);
+ }
+ });
+ });
+ };
+
+ var sendCount = 0,
+ sendActivityInternal = function () {
+ var request;
+ // send max. 100 activities, do not be excessive
+ if (activityQueue.length > 100) {
+ sendCount = 100;
+ request = '[' + activityQueue.slice(0, 100).join(',') + ']';
+ }
+ else {
+ sendCount = activityQueue.length;
+ request = '[' + activityQueue.join(',') + ']';
+ }
+ send('activity', request).then(
+ function sendActivitySuccess() {
+ activityQueue.splice(0, sendCount);
+ if (activityQueue.length > 0) sendActivityInternal();
+ },
+ function sendActivityFailure() {
+ Q.delay(500).then(sendActivityInternal).done();
+ }
+ ).done();
+ };
+
+ codeq.comms = {
+ sendActivity: function commsSendActivity (json) {
+ var triggerSending = activityQueue.length == 0;
+ json['sid'] = codeq.sid;
+ activityQueue.push(codeq.jsonize(json));
+ if (triggerSending) {
+ setTimeout(sendActivityInternal, 0); // async trigger: see if you can collect some more payload
+ }
+ },
+
+ sendQuery: function commsSendQuery (json) {
+ json['sid'] = codeq.sid;
+ return send('query', codeq.jsonize(json));
+ }
+ };
+})();
diff --git a/js/codeq/core.js b/js/codeq/core.js
new file mode 100644
index 0000000..f13a019
--- /dev/null
+++ b/js/codeq/core.js
@@ -0,0 +1,33 @@
+window.siteDefinition = { logLevel: 'debug' }; // for debug purposes
+
+window.codeq = {
+ /**
+ * XML namespaces.
+ */
+ ns: {
+ svg: 'http://www.w3.org/2000/svg'
+ },
+
+ noOnlineStatus: !('onLine' in navigator),
+
+ /**
+ * REST API URL prefix.
+ */
+ urlPrefix: '/codeq/',
+
+ /**
+ * Returns the number of Unicode code points in the given string.
+ *
+ * @param s {string}
+ * @returns {number}
+ */
+ codePointCount: function (s) {
+ var n = 0, i, code;
+ for (i = s.length - 1; i >= 0; i--) {
+ code = s.charCodeAt(i);
+ if ((code >= 0xd800) && (code < 0xe000)) i++;
+ n++;
+ }
+ return n;
+ }
+};
diff --git a/js/codeq/login.js b/js/codeq/login.js
new file mode 100644
index 0000000..d449835
--- /dev/null
+++ b/js/codeq/login.js
@@ -0,0 +1,183 @@
+(function(){
+ var groups = {
+ 'family_relations': {
+ 'name': 'Family relations',
+ 'problems': [
+ {'id': 'ancestor_2', 'name': 'ancestor/2'},
+ {'id': 'aunt_2', 'name': 'aunt/2'},
+ {'id': 'brother_2', 'name': 'brother/2'},
+ {'id': 'connected_3', 'name': 'connected/3'},
+ {'id': 'cousin_2', 'name': 'cousin/2'}
+ ]
+ },
+ 'lists': {
+ 'name': 'Lists',
+ 'problems': [
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''}
+ ]
+ },
+ 'sorting': {
+ 'name': 'Sorting',
+ 'problems': [
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''}
+ ]
+ },
+ 'other': {
+ 'name': 'Other',
+ 'problems': [
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''}
+ ]
+ },
+ 'sets': {
+ 'name': 'Sets',
+ 'problems': [
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''}
+ ]
+ },
+ 'trees': {
+ 'name': 'Trees',
+ 'problems': [
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''}
+ ]
+ },
+ 'license_plates': {
+ 'name': 'License plates',
+ },
+ 'clp_fd': {
+ 'name': 'CLP(FD',
+ 'problems': [
+ {'id': 'gcd_3', 'name': 'gcd/3'},
+ {'id': 'magic_1', 'name': 'magic/1'},
+ {'id': 'puzzle_abc_3', 'name': 'puzzle_abc/3'},
+ {'id': 'puzzle_beth_1', 'name': 'puzzle_beth/1'},
+ {'id': 'puzzle_momson_2', 'name': 'puzzle_momson/2'},
+ {'id': 'puzzle_ratio_2', 'name': 'puzzle_ratio/2'},
+ {'id': 'tobase_3', 'name': 'tobase/3'}
+ ]
+ },
+ 'clp_r': {
+ 'name': 'CLP(R)',
+ 'problems': [
+ {'id': 'bounding_box_3', 'name': 'bounding_box/3'},
+ {'id': 'center_3', 'name': 'center/3'},
+ {'id': 'linear_opts_3', 'name': 'linear_opts/3'},
+ {'id': 'max_sum_2', 'name': 'max_sum/2'},
+ {'id': 'megabytes_2', 'name': 'megabytes/2'},
+ {'id': 'turkey_3', 'name': 'turkey/3'}
+ ]
+ },
+ 'dcg': {
+ 'name': 'DCG',
+ 'problems': [
+ {'id': 'ab_2', 'name': 'ab/2'},
+ {'id': 'digit_2', 'name': 'digit/2'},
+ {'id': 'expr_2', 'name': 'expr/2'},
+ {'id': 'expr_3', 'name': 'expr/3'},
+ {'id': 'flower_2', 'name': 'flower/2'}
+ ]
+ },
+ 'denotational_semantics': {
+ 'name': 'Denotational semantics',
+ 'problems': [
+ {'id': 'algol_3', 'name': 'algol/3'},
+ {'id': 'algol_for_3', 'name': 'algol_for/3'},
+ {'id': 'algol_if_3', 'name': 'algol_if/3'},
+ {'id': 'prog_8puzzle_2', 'name': 'prog_8puzzle/2'},
+ {'id': 'prog_8puzzle_3', 'name': 'prog_8puzzle/3'}
+ ]
+ },
+ 'old_exams': {
+ 'name': 'Old exams',
+ 'problems': [
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''},
+ {'id': '', 'name': ''}
+ ]
+ }
+ };
+
+ $("#submit").on('click', function () {
+ var group = $('#problem_group').val(),
+ problem = $('#problems').val();
+ if (!group) alert('Choose a problem group');
+ else if (!problem) alert('Choose a problem');
+ else {
+ $.ajax({
+ 'type': 'POST',
+ 'url': '/codeq/login',
+ 'accepts': 'application/json',
+ 'contentType': 'application/json; charset=UTF-8',
+ 'data': JSON.stringify({
+ 'username': $('#username').val(),
+ 'password': $('#password').val()
+ }),
+ 'processData': false,
+ 'dataType': 'json',
+ 'error': function loginErrorHandler(jqXHR, textStatus, errorThrown) {
+ alert('Request for login failed: ' + (errorThrown || textStatus));
+ },
+ 'success': function loginSuccessHandler(data, textStatus, jqXHR) {
+ if (data && (data.code === 0)) {
+ window.location = 'prolog.html#sid=' + data.sid + '/grp=' + group + '/prb=' + problem;
+ }
+ else {
+ alert('Login failed: code=' + data.code + ', reason=' + data.message);
+ }
+ }
+ });
+ }
+ });
+
+ $(document).ready(function () {
+ var jqGroup = $('#problem_group'),
+ jqProblems = $('#problems'),
+ id, g, first_group, html = [];
+
+ for (id in groups) {
+ g = groups[id];
+ html.push('<option value="', id, '">', g.name, '</option>\n');
+ }
+ jqGroup.html(html.join(''));
+ first_group = html[1];
+ html = null;
+
+ jqGroup.on('click', function () {
+ var g = groups[jqGroup.val()],
+ html = [],
+ problems, i, p;
+ if (g) {
+ problems = g.problems;
+ for (i = 0; i < problems.length; i++) {
+ p = problems[i];
+ if (!p.id) continue;
+ html.push('<option value="', p.id, '">', p.name, '</option>\n')
+ }
+ }
+ jqProblems.html(html.join(''));
+ });
+
+ jqGroup.val(first_group);
+ });
+})(); \ No newline at end of file
diff --git a/js/prolog.js b/js/prolog.js
index 28c1b69..0a0eb48 100644
--- a/js/prolog.js
+++ b/js/prolog.js
@@ -3,19 +3,95 @@
*/
(function () {
+ // a constant
+ var firstCharacterPos = {'line': 0, 'ch': 0};
+
+ var makePrologTerminalHandler = function (jqConsole, editor, problem_group, problem) {
+ var promptMode = true, // default: query composition; alternative: query result browsing
+ tcs = function terminalCommandSuccess (data) {
+ var t, lines, i;
+ terminal.resume();
+ if (data.code === 0) {
+ t = data.terminal;
+ lines = t.messages;
+ for (i = 0; i < lines.length; i++) {
+ terminal.echo(lines[i]);
+ }
+ promptMode = !t.have_more;
+ }
+ else {
+ terminal.error(data.message);
+ promptMode = true;
+ }
+ },
+ tcf = function terminalCommandFailed (error) {
+ terminal.resume();
+ terminal.exception(error);
+ promptMode = true;
+ },
+ terminal = jqConsole.terminal(function (command, terminal) {
+ if (promptMode) {
+ terminal.pause();
+ codeq.comms.sendQuery({
+ 'step': 'run',
+ 'program': editor.getDoc().getValue(),
+ 'query': command,
+ 'language': 'prolog',
+ 'problem_group': problem_group,
+ 'problem': problem
+ }).then(tcs, tcf).done();
+ }
+ else {
+ // not in prompt mode -- we should never land here, but handle it anyway
+ codeq.comms.sendQuery({
+ 'step': 'end'
+ }).then(tcs, tcf).done();
+ }
+ }, {
+ 'history': true,
+ 'prompt': '?- ',
+ 'greetings': 'CodeQ prolog terminal proxy',
+ 'exit': false,
+ 'clear': false,
+ 'keypress': function (event, terminal) {
+ if (promptMode) return true;
+ setTimeout(function () {
+ terminal.echo(''); // send newline after semicolon or full-stop
+ terminal.pause();
+ }, 0);
+ if ((event.which == 32) || (event.which == 59)) {
+ // space or semicolon -> show next answer
+ event.which = 59; // semicolon
+ codeq.comms.sendQuery({
+ 'step': 'next'
+ }).then(tcs, tcf).done();
+ }
+ else {
+ // everything else: stop searching for answers
+ event.which = 46; // full stop
+ codeq.comms.sendQuery({
+ 'step': 'end'
+ }).then(tcs, tcf).done();
+ }
+ }
+ });
+
+ return {};
+ };
+
/**
* Creates a new handler for the given Prolog assignment definition.
*
* @param {PrologTaskDef} info
* @returns {{destroy: Function, processServerHints: Function}}
*/
- codeq.createPrologHandler = function (info) {
+ codeq.createPrologHandler = function (info, problem_group, problem) {
var jqDescription = $('#description'),
jqEditor = $('#code_editor'),
jqConsole = $('#console'),
jqHints = $('#info'),
editor = CodeMirror(jqEditor[0], { cursorHeight: 0.85, lineNumbers: true, matchBrackets: true }),
- controller = jqConsole.console({
+/* controller = jqConsole.console({
promptLabel: '?- ',
commandValidate: function (line) {
return !!line;
@@ -27,7 +103,9 @@
animateScroll: false,
promptHistory: false,
welcomeMessage: 'Prolog REPL.'
- }), /** Object.<string, HintDefinition> */
+ }),*/
+ terminal = makePrologTerminalHandler(jqConsole, editor, problem_group, problem),
+ /** Object.<string, HintDefinition> */
hintDefs = info.hint,
hintCounter = 0, // for generating unique class-names
hintCleaners = [],
@@ -112,7 +190,7 @@
};
if ((editor.listSelections().length > 1) || editor.somethingSelected()) {
- // showHint() doesn't work if a selection is active
+ // showHint() doesn't work if a selection is activeparts
}
editor.showHint({
@@ -131,11 +209,32 @@
hintCleaners.push(close);
}
+ },
+ lastActivityMillis = Date.now(),
+ deltaActivityMillis = function deltaActivityMillisFunc () {
+ var now = Date.now(),
+ dt = Math.max(0, Math.min(30000, now - lastActivityMillis)); // 0 sec <= dt <= 30 sec
+ lastActivityMillis = now;
+ return dt;
};
editor.setValue('sister(X, Y) :-\n female(X),\n parent(Z, X),\n parent(Z, Y),\n X \\== Y.'); // demo
jqDescription.html(info.description);
+ editor.on('change', function (instance, changeObj) {
+ var doc = editor.getDoc(),
+ pos = codeq.codePointCount(doc.getRange(firstCharacterPos, changeObj.from)),
+ dt = deltaActivityMillis();
+
+ if (changeObj.removed) {
+// codeq.comms.sendActivity({'typ': 'rm', 'dt': dt, 'off': pos, 'len': codeq.codePointCount(changeObj.removed)});
+ }
+
+ if (changeObj.text) {
+// codeq.comms.sendActivity({'typ': 'ins', 'dt': dt, 'off': pos, 'txt': changeObj.text});
+ }
+ });
+
var handler = {
destroy: function () {
jqDescription.empty();
@@ -194,9 +293,18 @@
// $(jqButtons.get(1)).on('click', function () { handler.processServerHints([{id:'popup_unknown', start: 20, end: 26}]); });
// $(jqButtons.get(2)).on('click', function () { handler.processServerHints([{id:'drop_down', start: 20, end: 26, choices:['ena', 'dva', 'tri']}]); });
- $(jqButtons.get(0)).on('click', function () { handler.processServerHints([{id:'list_empty'}]); });
- $(jqButtons.get(1)).on('click', function () { handler.processServerHints([{id:'popup_unknown', start: 20, end: 26}]); });
- $(jqButtons.get(2)).on('click', function () { handler.processServerHints([{id:'drop_down', start: 20, end: 26, choices:['ena', 'dva', 'tri']}]); });
+ $('#btn_code_run').on('click', function () {
+ var doc = editor.getDoc(),
+ dt = deltaActivityMillis();
+// codeq.comms.sendActivity({'typ': 'slv', 'dt': dt, 'qry': });
+ handler.processServerHints([{id:'list_empty'}]);
+ });
+ $('#btn_code_break').on('click', function () {
+ handler.processServerHints([{id:'popup_unknown', start: 20, end: 26}]);
+ });
+ $('#btn_code_hint').on('click', function () {
+ handler.processServerHints([{id:'drop_down', start: 20, end: 26, choices:['ena', 'dva', 'tri']}]);
+ });
return handler;
};
diff --git a/js/q.js b/js/q.js
new file mode 100644
index 0000000..adaca8c
--- /dev/null
+++ b/js/q.js
@@ -0,0 +1,2051 @@
+// vim:ts=4:sts=4:sw=4:
+/*!
+ *
+ * Copyright 2009-2012 Kris Kowal under the terms of the MIT
+ * license found at http://github.com/kriskowal/q/raw/master/LICENSE
+ *
+ * With parts by Tyler Close
+ * Copyright 2007-2009 Tyler Close under the terms of the MIT X license found
+ * at http://www.opensource.org/licenses/mit-license.html
+ * Forked at ref_send.js version: 2009-05-11
+ *
+ * With parts by Mark Miller
+ * Copyright (C) 2011 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+(function (definition) {
+ "use strict";
+
+ // This file will function properly as a <script> tag, or a module
+ // using CommonJS and NodeJS or RequireJS module formats. In
+ // Common/Node/RequireJS, the module exports the Q API and when
+ // executed as a simple <script>, it creates a Q global instead.
+
+ // Montage Require
+ if (typeof bootstrap === "function") {
+ bootstrap("promise", definition);
+
+ // CommonJS
+ } else if (typeof exports === "object" && typeof module === "object") {
+ module.exports = definition();
+
+ // RequireJS
+ } else if (typeof define === "function" && define.amd) {
+ define(definition);
+
+ // SES (Secure EcmaScript)
+ } else if (typeof ses !== "undefined") {
+ if (!ses.ok()) {
+ return;
+ } else {
+ ses.makeQ = definition;
+ }
+
+ // <script>
+ } else if (typeof window !== "undefined" || typeof self !== "undefined") {
+ // Prefer window over self for add-on scripts. Use self for
+ // non-windowed contexts.
+ var global = typeof window !== "undefined" ? window : self;
+
+ // Get the `window` object, save the previous Q global
+ // and initialize Q as a global.
+ var previousQ = global.Q;
+ global.Q = definition();
+
+ // Add a noConflict function so Q can be removed from the
+ // global namespace.
+ global.Q.noConflict = function () {
+ global.Q = previousQ;
+ return this;
+ };
+
+ } else {
+ throw new Error("This environment was not anticipated by Q. Please file a bug.");
+ }
+
+})(function () {
+"use strict";
+
+var hasStacks = false;
+try {
+ throw new Error();
+} catch (e) {
+ hasStacks = !!e.stack;
+}
+
+// All code after this point will be filtered from stack traces reported
+// by Q.
+var qStartingLine = captureLine();
+var qFileName;
+
+// shims
+
+// used for fallback in "allResolved"
+var noop = function () {};
+
+// Use the fastest possible means to execute a task in a future turn
+// of the event loop.
+var nextTick =(function () {
+ // linked list of tasks (single, with head node)
+ var head = {task: void 0, next: null};
+ var tail = head;
+ var flushing = false;
+ var requestTick = void 0;
+ var isNodeJS = false;
+ // queue for late tasks, used by unhandled rejection tracking
+ var laterQueue = [];
+
+ function flush() {
+ /* jshint loopfunc: true */
+ var task, domain;
+
+ while (head.next) {
+ head = head.next;
+ task = head.task;
+ head.task = void 0;
+ domain = head.domain;
+
+ if (domain) {
+ head.domain = void 0;
+ domain.enter();
+ }
+ runSingle(task, domain);
+
+ }
+ while (laterQueue.length) {
+ task = laterQueue.pop();
+ runSingle(task);
+ }
+ flushing = false;
+ }
+ // runs a single function in the async queue
+ function runSingle(task, domain) {
+ try {
+ task();
+
+ } catch (e) {
+ if (isNodeJS) {
+ // In node, uncaught exceptions are considered fatal errors.
+ // Re-throw them synchronously to interrupt flushing!
+
+ // Ensure continuation if the uncaught exception is suppressed
+ // listening "uncaughtException" events (as domains does).
+ // Continue in next event to avoid tick recursion.
+ if (domain) {
+ domain.exit();
+ }
+ setTimeout(flush, 0);
+ if (domain) {
+ domain.enter();
+ }
+
+ throw e;
+
+ } else {
+ // In browsers, uncaught exceptions are not fatal.
+ // Re-throw them asynchronously to avoid slow-downs.
+ setTimeout(function () {
+ throw e;
+ }, 0);
+ }
+ }
+
+ if (domain) {
+ domain.exit();
+ }
+ }
+
+ nextTick = function (task) {
+ tail = tail.next = {
+ task: task,
+ domain: isNodeJS && process.domain,
+ next: null
+ };
+
+ if (!flushing) {
+ flushing = true;
+ requestTick();
+ }
+ };
+
+ if (typeof process === "object" &&
+ process.toString() === "[object process]" && process.nextTick) {
+ // Ensure Q is in a real Node environment, with a `process.nextTick`.
+ // To see through fake Node environments:
+ // * Mocha test runner - exposes a `process` global without a `nextTick`
+ // * Browserify - exposes a `process.nexTick` function that uses
+ // `setTimeout`. In this case `setImmediate` is preferred because
+ // it is faster. Browserify's `process.toString()` yields
+ // "[object Object]", while in a real Node environment
+ // `process.nextTick()` yields "[object process]".
+ isNodeJS = true;
+
+ requestTick = function () {
+ process.nextTick(flush);
+ };
+
+ } else if (typeof setImmediate === "function") {
+ // In IE10, Node.js 0.9+, or https://github.com/NobleJS/setImmediate
+ if (typeof window !== "undefined") {
+ requestTick = setImmediate.bind(window, flush);
+ } else {
+ requestTick = function () {
+ setImmediate(flush);
+ };
+ }
+
+ } else if (typeof MessageChannel !== "undefined") {
+ // modern browsers
+ // http://www.nonblocking.io/2011/06/windownexttick.html
+ var channel = new MessageChannel();
+ // At least Safari Version 6.0.5 (8536.30.1) intermittently cannot create
+ // working message ports the first time a page loads.
+ channel.port1.onmessage = function () {
+ requestTick = requestPortTick;
+ channel.port1.onmessage = flush;
+ flush();
+ };
+ var requestPortTick = function () {
+ // Opera requires us to provide a message payload, regardless of
+ // whether we use it.
+ channel.port2.postMessage(0);
+ };
+ requestTick = function () {
+ setTimeout(flush, 0);
+ requestPortTick();
+ };
+
+ } else {
+ // old browsers
+ requestTick = function () {
+ setTimeout(flush, 0);
+ };
+ }
+ // runs a task after all other tasks have been run
+ // this is useful for unhandled rejection tracking that needs to happen
+ // after all `then`d tasks have been run.
+ nextTick.runAfter = function (task) {
+ laterQueue.push(task);
+ if (!flushing) {
+ flushing = true;
+ requestTick();
+ }
+ };
+ return nextTick;
+})();
+
+// Attempt to make generics safe in the face of downstream
+// modifications.
+// There is no situation where this is necessary.
+// If you need a security guarantee, these primordials need to be
+// deeply frozen anyway, and if you don’t need a security guarantee,
+// this is just plain paranoid.
+// However, this **might** have the nice side-effect of reducing the size of
+// the minified code by reducing x.call() to merely x()
+// See Mark Miller’s explanation of what this does.
+// http://wiki.ecmascript.org/doku.php?id=conventions:safe_meta_programming
+var call = Function.call;
+function uncurryThis(f) {
+ return function () {
+ return call.apply(f, arguments);
+ };
+}
+// This is equivalent, but slower:
+// uncurryThis = Function_bind.bind(Function_bind.call);
+// http://jsperf.com/uncurrythis
+
+var array_slice = uncurryThis(Array.prototype.slice);
+
+var array_reduce = uncurryThis(
+ Array.prototype.reduce || function (callback, basis) {
+ var index = 0,
+ length = this.length;
+ // concerning the initial value, if one is not provided
+ if (arguments.length === 1) {
+ // seek to the first value in the array, accounting
+ // for the possibility that is is a sparse array
+ do {
+ if (index in this) {
+ basis = this[index++];
+ break;
+ }
+ if (++index >= length) {
+ throw new TypeError();
+ }
+ } while (1);
+ }
+ // reduce
+ for (; index < length; index++) {
+ // account for the possibility that the array is sparse
+ if (index in this) {
+ basis = callback(basis, this[index], index);
+ }
+ }
+ return basis;
+ }
+);
+
+var array_indexOf = uncurryThis(
+ Array.prototype.indexOf || function (value) {
+ // not a very good shim, but good enough for our one use of it
+ for (var i = 0; i < this.length; i++) {
+ if (this[i] === value) {
+ return i;
+ }
+ }
+ return -1;
+ }
+);
+
+var array_map = uncurryThis(
+ Array.prototype.map || function (callback, thisp) {
+ var self = this;
+ var collect = [];
+ array_reduce(self, function (undefined, value, index) {
+ collect.push(callback.call(thisp, value, index, self));
+ }, void 0);
+ return collect;
+ }
+);
+
+var object_create = Object.create || function (prototype) {
+ function Type() { }
+ Type.prototype = prototype;
+ return new Type();
+};
+
+var object_hasOwnProperty = uncurryThis(Object.prototype.hasOwnProperty);
+
+var object_keys = Object.keys || function (object) {
+ var keys = [];
+ for (var key in object) {
+ if (object_hasOwnProperty(object, key)) {
+ keys.push(key);
+ }
+ }
+ return keys;
+};
+
+var object_toString = uncurryThis(Object.prototype.toString);
+
+function isObject(value) {
+ return value === Object(value);
+}
+
+// generator related shims
+
+// FIXME: Remove this function once ES6 generators are in SpiderMonkey.
+function isStopIteration(exception) {
+ return (
+ object_toString(exception) === "[object StopIteration]" ||
+ exception instanceof QReturnValue
+ );
+}
+
+// FIXME: Remove this helper and Q.return once ES6 generators are in
+// SpiderMonkey.
+var QReturnValue;
+if (typeof ReturnValue !== "undefined") {
+ QReturnValue = ReturnValue;
+} else {
+ QReturnValue = function (value) {
+ this.value = value;
+ };
+}
+
+// long stack traces
+
+var STACK_JUMP_SEPARATOR = "From previous event:";
+
+function makeStackTraceLong(error, promise) {
+ // If possible, transform the error stack trace by removing Node and Q
+ // cruft, then concatenating with the stack trace of `promise`. See #57.
+ if (hasStacks &&
+ promise.stack &&
+ typeof error === "object" &&
+ error !== null &&
+ error.stack &&
+ error.stack.indexOf(STACK_JUMP_SEPARATOR) === -1
+ ) {
+ var stacks = [];
+ for (var p = promise; !!p; p = p.source) {
+ if (p.stack) {
+ stacks.unshift(p.stack);
+ }
+ }
+ stacks.unshift(error.stack);
+
+ var concatedStacks = stacks.join("\n" + STACK_JUMP_SEPARATOR + "\n");
+ error.stack = filterStackString(concatedStacks);
+ }
+}
+
+function filterStackString(stackString) {
+ var lines = stackString.split("\n");
+ var desiredLines = [];
+ for (var i = 0; i < lines.length; ++i) {
+ var line = lines[i];
+
+ if (!isInternalFrame(line) && !isNodeFrame(line) && line) {
+ desiredLines.push(line);
+ }
+ }
+ return desiredLines.join("\n");
+}
+
+function isNodeFrame(stackLine) {
+ return stackLine.indexOf("(module.js:") !== -1 ||
+ stackLine.indexOf("(node.js:") !== -1;
+}
+
+function getFileNameAndLineNumber(stackLine) {
+ // Named functions: "at functionName (filename:lineNumber:columnNumber)"
+ // In IE10 function name can have spaces ("Anonymous function") O_o
+ var attempt1 = /at .+ \((.+):(\d+):(?:\d+)\)$/.exec(stackLine);
+ if (attempt1) {
+ return [attempt1[1], Number(attempt1[2])];
+ }
+
+ // Anonymous functions: "at filename:lineNumber:columnNumber"
+ var attempt2 = /at ([^ ]+):(\d+):(?:\d+)$/.exec(stackLine);
+ if (attempt2) {
+ return [attempt2[1], Number(attempt2[2])];
+ }
+
+ // Firefox style: "function@filename:lineNumber or @filename:lineNumber"
+ var attempt3 = /.*@(.+):(\d+)$/.exec(stackLine);
+ if (attempt3) {
+ return [attempt3[1], Number(attempt3[2])];
+ }
+}
+
+function isInternalFrame(stackLine) {
+ var fileNameAndLineNumber = getFileNameAndLineNumber(stackLine);
+
+ if (!fileNameAndLineNumber) {
+ return false;
+ }
+
+ var fileName = fileNameAndLineNumber[0];
+ var lineNumber = fileNameAndLineNumber[1];
+
+ return fileName === qFileName &&
+ lineNumber >= qStartingLine &&
+ lineNumber <= qEndingLine;
+}
+
+// discover own file name and line number range for filtering stack
+// traces
+function captureLine() {
+ if (!hasStacks) {
+ return;
+ }
+
+ try {
+ throw new Error();
+ } catch (e) {
+ var lines = e.stack.split("\n");
+ var firstLine = lines[0].indexOf("@") > 0 ? lines[1] : lines[2];
+ var fileNameAndLineNumber = getFileNameAndLineNumber(firstLine);
+ if (!fileNameAndLineNumber) {
+ return;
+ }
+
+ qFileName = fileNameAndLineNumber[0];
+ return fileNameAndLineNumber[1];
+ }
+}
+
+function deprecate(callback, name, alternative) {
+ return function () {
+ if (typeof console !== "undefined" &&
+ typeof console.warn === "function") {
+ console.warn(name + " is deprecated, use " + alternative +
+ " instead.", new Error("").stack);
+ }
+ return callback.apply(callback, arguments);
+ };
+}
+
+// end of shims
+// beginning of real work
+
+/**
+ * Constructs a promise for an immediate reference, passes promises through, or
+ * coerces promises from different systems.
+ * @param value immediate reference or promise
+ */
+function Q(value) {
+ // If the object is already a Promise, return it directly. This enables
+ // the resolve function to both be used to created references from objects,
+ // but to tolerably coerce non-promises to promises.
+ if (value instanceof Promise) {
+ return value;
+ }
+
+ // assimilate thenables
+ if (isPromiseAlike(value)) {
+ return coerce(value);
+ } else {
+ return fulfill(value);
+ }
+}
+Q.resolve = Q;
+
+/**
+ * Performs a task in a future turn of the event loop.
+ * @param {Function} task
+ */
+Q.nextTick = nextTick;
+
+/**
+ * Controls whether or not long stack traces will be on
+ */
+Q.longStackSupport = false;
+
+// enable long stacks if Q_DEBUG is set
+if (typeof process === "object" && process && process.env && process.env.Q_DEBUG) {
+ Q.longStackSupport = true;
+}
+
+/**
+ * Constructs a {promise, resolve, reject} object.
+ *
+ * `resolve` is a callback to invoke with a more resolved value for the
+ * promise. To fulfill the promise, invoke `resolve` with any value that is
+ * not a thenable. To reject the promise, invoke `resolve` with a rejected
+ * thenable, or invoke `reject` with the reason directly. To resolve the
+ * promise to another thenable, thus putting it in the same state, invoke
+ * `resolve` with that other thenable.
+ */
+Q.defer = defer;
+function defer() {
+ // if "messages" is an "Array", that indicates that the promise has not yet
+ // been resolved. If it is "undefined", it has been resolved. Each
+ // element of the messages array is itself an array of complete arguments to
+ // forward to the resolved promise. We coerce the resolution value to a
+ // promise using the `resolve` function because it handles both fully
+ // non-thenable values and other thenables gracefully.
+ var messages = [], progressListeners = [], resolvedPromise;
+
+ var deferred = object_create(defer.prototype);
+ var promise = object_create(Promise.prototype);
+
+ promise.promiseDispatch = function (resolve, op, operands) {
+ var args = array_slice(arguments);
+ if (messages) {
+ messages.push(args);
+ if (op === "when" && operands[1]) { // progress operand
+ progressListeners.push(operands[1]);
+ }
+ } else {
+ Q.nextTick(function () {
+ resolvedPromise.promiseDispatch.apply(resolvedPromise, args);
+ });
+ }
+ };
+
+ // XXX deprecated
+ promise.valueOf = function () {
+ if (messages) {
+ return promise;
+ }
+ var nearerValue = nearer(resolvedPromise);
+ if (isPromise(nearerValue)) {
+ resolvedPromise = nearerValue; // shorten chain
+ }
+ return nearerValue;
+ };
+
+ promise.inspect = function () {
+ if (!resolvedPromise) {
+ return { state: "pending" };
+ }
+ return resolvedPromise.inspect();
+ };
+
+ if (Q.longStackSupport && hasStacks) {
+ try {
+ throw new Error();
+ } catch (e) {
+ // NOTE: don't try to use `Error.captureStackTrace` or transfer the
+ // accessor around; that causes memory leaks as per GH-111. Just
+ // reify the stack trace as a string ASAP.
+ //
+ // At the same time, cut off the first line; it's always just
+ // "[object Promise]\n", as per the `toString`.
+ promise.stack = e.stack.substring(e.stack.indexOf("\n") + 1);
+ }
+ }
+
+ // NOTE: we do the checks for `resolvedPromise` in each method, instead of
+ // consolidating them into `become`, since otherwise we'd create new
+ // promises with the lines `become(whatever(value))`. See e.g. GH-252.
+
+ function become(newPromise) {
+ resolvedPromise = newPromise;
+ promise.source = newPromise;
+
+ array_reduce(messages, function (undefined, message) {
+ Q.nextTick(function () {
+ newPromise.promiseDispatch.apply(newPromise, message);
+ });
+ }, void 0);
+
+ messages = void 0;
+ progressListeners = void 0;
+ }
+
+ deferred.promise = promise;
+ deferred.resolve = function (value) {
+ if (resolvedPromise) {
+ return;
+ }
+
+ become(Q(value));
+ };
+
+ deferred.fulfill = function (value) {
+ if (resolvedPromise) {
+ return;
+ }
+
+ become(fulfill(value));
+ };
+ deferred.reject = function (reason) {
+ if (resolvedPromise) {
+ return;
+ }
+
+ become(reject(reason));
+ };
+ deferred.notify = function (progress) {
+ if (resolvedPromise) {
+ return;
+ }
+
+ array_reduce(progressListeners, function (undefined, progressListener) {
+ Q.nextTick(function () {
+ progressListener(progress);
+ });
+ }, void 0);
+ };
+
+ return deferred;
+}
+
+/**
+ * Creates a Node-style callback that will resolve or reject the deferred
+ * promise.
+ * @returns a nodeback
+ */
+defer.prototype.makeNodeResolver = function () {
+ var self = this;
+ return function (error, value) {
+ if (error) {
+ self.reject(error);
+ } else if (arguments.length > 2) {
+ self.resolve(array_slice(arguments, 1));
+ } else {
+ self.resolve(value);
+ }
+ };
+};
+
+/**
+ * @param resolver {Function} a function that returns nothing and accepts
+ * the resolve, reject, and notify functions for a deferred.
+ * @returns a promise that may be resolved with the given resolve and reject
+ * functions, or rejected by a thrown exception in resolver
+ */
+Q.Promise = promise; // ES6
+Q.promise = promise;
+function promise(resolver) {
+ if (typeof resolver !== "function") {
+ throw new TypeError("resolver must be a function.");
+ }
+ var deferred = defer();
+ try {
+ resolver(deferred.resolve, deferred.reject, deferred.notify);
+ } catch (reason) {
+ deferred.reject(reason);
+ }
+ return deferred.promise;
+}
+
+promise.race = race; // ES6
+promise.all = all; // ES6
+promise.reject = reject; // ES6
+promise.resolve = Q; // ES6
+
+// XXX experimental. This method is a way to denote that a local value is
+// serializable and should be immediately dispatched to a remote upon request,
+// instead of passing a reference.
+Q.passByCopy = function (object) {
+ //freeze(object);
+ //passByCopies.set(object, true);
+ return object;
+};
+
+Promise.prototype.passByCopy = function () {
+ //freeze(object);
+ //passByCopies.set(object, true);
+ return this;
+};
+
+/**
+ * If two promises eventually fulfill to the same value, promises that value,
+ * but otherwise rejects.
+ * @param x {Any*}
+ * @param y {Any*}
+ * @returns {Any*} a promise for x and y if they are the same, but a rejection
+ * otherwise.
+ *
+ */
+Q.join = function (x, y) {
+ return Q(x).join(y);
+};
+
+Promise.prototype.join = function (that) {
+ return Q([this, that]).spread(function (x, y) {
+ if (x === y) {
+ // TODO: "===" should be Object.is or equiv
+ return x;
+ } else {
+ throw new Error("Can't join: not the same: " + x + " " + y);
+ }
+ });
+};
+
+/**
+ * Returns a promise for the first of an array of promises to become settled.
+ * @param answers {Array[Any*]} promises to race
+ * @returns {Any*} the first promise to be settled
+ */
+Q.race = race;
+function race(answerPs) {
+ return promise(function (resolve, reject) {
+ // Switch to this once we can assume at least ES5
+ // answerPs.forEach(function (answerP) {
+ // Q(answerP).then(resolve, reject);
+ // });
+ // Use this in the meantime
+ for (var i = 0, len = answerPs.length; i < len; i++) {
+ Q(answerPs[i]).then(resolve, reject);
+ }
+ });
+}
+
+Promise.prototype.race = function () {
+ return this.then(Q.race);
+};
+
+/**
+ * Constructs a Promise with a promise descriptor object and optional fallback
+ * function. The descriptor contains methods like when(rejected), get(name),
+ * set(name, value), post(name, args), and delete(name), which all
+ * return either a value, a promise for a value, or a rejection. The fallback
+ * accepts the operation name, a resolver, and any further arguments that would
+ * have been forwarded to the appropriate method above had a method been
+ * provided with the proper name. The API makes no guarantees about the nature
+ * of the returned object, apart from that it is usable whereever promises are
+ * bought and sold.
+ */
+Q.makePromise = Promise;
+function Promise(descriptor, fallback, inspect) {
+ if (fallback === void 0) {
+ fallback = function (op) {
+ return reject(new Error(
+ "Promise does not support operation: " + op
+ ));
+ };
+ }
+ if (inspect === void 0) {
+ inspect = function () {
+ return {state: "unknown"};
+ };
+ }
+
+ var promise = object_create(Promise.prototype);
+
+ promise.promiseDispatch = function (resolve, op, args) {
+ var result;
+ try {
+ if (descriptor[op]) {
+ result = descriptor[op].apply(promise, args);
+ } else {
+ result = fallback.call(promise, op, args);
+ }
+ } catch (exception) {
+ result = reject(exception);
+ }
+ if (resolve) {
+ resolve(result);
+ }
+ };
+
+ promise.inspect = inspect;
+
+ // XXX deprecated `valueOf` and `exception` support
+ if (inspect) {
+ var inspected = inspect();
+ if (inspected.state === "rejected") {
+ promise.exception = inspected.reason;
+ }
+
+ promise.valueOf = function () {
+ var inspected = inspect();
+ if (inspected.state === "pending" ||
+ inspected.state === "rejected") {
+ return promise;
+ }
+ return inspected.value;
+ };
+ }
+
+ return promise;
+}
+
+Promise.prototype.toString = function () {
+ return "[object Promise]";
+};
+
+Promise.prototype.then = function (fulfilled, rejected, progressed) {
+ var self = this;
+ var deferred = defer();
+ var done = false; // ensure the untrusted promise makes at most a
+ // single call to one of the callbacks
+
+ function _fulfilled(value) {
+ try {
+ return typeof fulfilled === "function" ? fulfilled(value) : value;
+ } catch (exception) {
+ return reject(exception);
+ }
+ }
+
+ function _rejected(exception) {
+ if (typeof rejected === "function") {
+ makeStackTraceLong(exception, self);
+ try {
+ return rejected(exception);
+ } catch (newException) {
+ return reject(newException);
+ }
+ }
+ return reject(exception);
+ }
+
+ function _progressed(value) {
+ return typeof progressed === "function" ? progressed(value) : value;
+ }
+
+ Q.nextTick(function () {
+ self.promiseDispatch(function (value) {
+ if (done) {
+ return;
+ }
+ done = true;
+
+ deferred.resolve(_fulfilled(value));
+ }, "when", [function (exception) {
+ if (done) {
+ return;
+ }
+ done = true;
+
+ deferred.resolve(_rejected(exception));
+ }]);
+ });
+
+ // Progress propagator need to be attached in the current tick.
+ self.promiseDispatch(void 0, "when", [void 0, function (value) {
+ var newValue;
+ var threw = false;
+ try {
+ newValue = _progressed(value);
+ } catch (e) {
+ threw = true;
+ if (Q.onerror) {
+ Q.onerror(e);
+ } else {
+ throw e;
+ }
+ }
+
+ if (!threw) {
+ deferred.notify(newValue);
+ }
+ }]);
+
+ return deferred.promise;
+};
+
+Q.tap = function (promise, callback) {
+ return Q(promise).tap(callback);
+};
+
+/**
+ * Works almost like "finally", but not called for rejections.
+ * Original resolution value is passed through callback unaffected.
+ * Callback may return a promise that will be awaited for.
+ * @param {Function} callback
+ * @returns {Q.Promise}
+ * @example
+ * doSomething()
+ * .then(...)
+ * .tap(console.log)
+ * .then(...);
+ */
+Promise.prototype.tap = function (callback) {
+ callback = Q(callback);
+
+ return this.then(function (value) {
+ return callback.fcall(value).thenResolve(value);
+ });
+};
+
+/**
+ * Registers an observer on a promise.
+ *
+ * Guarantees:
+ *
+ * 1. that fulfilled and rejected will be called only once.
+ * 2. that either the fulfilled callback or the rejected callback will be
+ * called, but not both.
+ * 3. that fulfilled and rejected will not be called in this turn.
+ *
+ * @param value promise or immediate reference to observe
+ * @param fulfilled function to be called with the fulfilled value
+ * @param rejected function to be called with the rejection exception
+ * @param progressed function to be called on any progress notifications
+ * @return promise for the return value from the invoked callback
+ */
+Q.when = when;
+function when(value, fulfilled, rejected, progressed) {
+ return Q(value).then(fulfilled, rejected, progressed);
+}
+
+Promise.prototype.thenResolve = function (value) {
+ return this.then(function () { return value; });
+};
+
+Q.thenResolve = function (promise, value) {
+ return Q(promise).thenResolve(value);
+};
+
+Promise.prototype.thenReject = function (reason) {
+ return this.then(function () { throw reason; });
+};
+
+Q.thenReject = function (promise, reason) {
+ return Q(promise).thenReject(reason);
+};
+
+/**
+ * If an object is not a promise, it is as "near" as possible.
+ * If a promise is rejected, it is as "near" as possible too.
+ * If it’s a fulfilled promise, the fulfillment value is nearer.
+ * If it’s a deferred promise and the deferred has been resolved, the
+ * resolution is "nearer".
+ * @param object
+ * @returns most resolved (nearest) form of the object
+ */
+
+// XXX should we re-do this?
+Q.nearer = nearer;
+function nearer(value) {
+ if (isPromise(value)) {
+ var inspected = value.inspect();
+ if (inspected.state === "fulfilled") {
+ return inspected.value;
+ }
+ }
+ return value;
+}
+
+/**
+ * @returns whether the given object is a promise.
+ * Otherwise it is a fulfilled value.
+ */
+Q.isPromise = isPromise;
+function isPromise(object) {
+ return object instanceof Promise;
+}
+
+Q.isPromiseAlike = isPromiseAlike;
+function isPromiseAlike(object) {
+ return isObject(object) && typeof object.then === "function";
+}
+
+/**
+ * @returns whether the given object is a pending promise, meaning not
+ * fulfilled or rejected.
+ */
+Q.isPending = isPending;
+function isPending(object) {
+ return isPromise(object) && object.inspect().state === "pending";
+}
+
+Promise.prototype.isPending = function () {
+ return this.inspect().state === "pending";
+};
+
+/**
+ * @returns whether the given object is a value or fulfilled
+ * promise.
+ */
+Q.isFulfilled = isFulfilled;
+function isFulfilled(object) {
+ return !isPromise(object) || object.inspect().state === "fulfilled";
+}
+
+Promise.prototype.isFulfilled = function () {
+ return this.inspect().state === "fulfilled";
+};
+
+/**
+ * @returns whether the given object is a rejected promise.
+ */
+Q.isRejected = isRejected;
+function isRejected(object) {
+ return isPromise(object) && object.inspect().state === "rejected";
+}
+
+Promise.prototype.isRejected = function () {
+ return this.inspect().state === "rejected";
+};
+
+//// BEGIN UNHANDLED REJECTION TRACKING
+
+// This promise library consumes exceptions thrown in handlers so they can be
+// handled by a subsequent promise. The exceptions get added to this array when
+// they are created, and removed when they are handled. Note that in ES6 or
+// shimmed environments, this would naturally be a `Set`.
+var unhandledReasons = [];
+var unhandledRejections = [];
+var reportedUnhandledRejections = [];
+var trackUnhandledRejections = true;
+
+function resetUnhandledRejections() {
+ unhandledReasons.length = 0;
+ unhandledRejections.length = 0;
+
+ if (!trackUnhandledRejections) {
+ trackUnhandledRejections = true;
+ }
+}
+
+function trackRejection(promise, reason) {
+ if (!trackUnhandledRejections) {
+ return;
+ }
+ if (typeof process === "object" && typeof process.emit === "function") {
+ Q.nextTick.runAfter(function () {
+ if (array_indexOf(unhandledRejections, promise) !== -1) {
+ process.emit("unhandledRejection", reason, promise);
+ reportedUnhandledRejections.push(promise);
+ }
+ });
+ }
+
+ unhandledRejections.push(promise);
+ if (reason && typeof reason.stack !== "undefined") {
+ unhandledReasons.push(reason.stack);
+ } else {
+ unhandledReasons.push("(no stack) " + reason);
+ }
+}
+
+function untrackRejection(promise) {
+ if (!trackUnhandledRejections) {
+ return;
+ }
+
+ var at = array_indexOf(unhandledRejections, promise);
+ if (at !== -1) {
+ if (typeof process === "object" && typeof process.emit === "function") {
+ Q.nextTick.runAfter(function () {
+ var atReport = array_indexOf(reportedUnhandledRejections, promise);
+ if (atReport !== -1) {
+ process.emit("rejectionHandled", unhandledReasons[at], promise);
+ reportedUnhandledRejections.splice(atReport, 1);
+ }
+ });
+ }
+ unhandledRejections.splice(at, 1);
+ unhandledReasons.splice(at, 1);
+ }
+}
+
+Q.resetUnhandledRejections = resetUnhandledRejections;
+
+Q.getUnhandledReasons = function () {
+ // Make a copy so that consumers can't interfere with our internal state.
+ return unhandledReasons.slice();
+};
+
+Q.stopUnhandledRejectionTracking = function () {
+ resetUnhandledRejections();
+ trackUnhandledRejections = false;
+};
+
+resetUnhandledRejections();
+
+//// END UNHANDLED REJECTION TRACKING
+
+/**
+ * Constructs a rejected promise.
+ * @param reason value describing the failure
+ */
+Q.reject = reject;
+function reject(reason) {
+ var rejection = Promise({
+ "when": function (rejected) {
+ // note that the error has been handled
+ if (rejected) {
+ untrackRejection(this);
+ }
+ return rejected ? rejected(reason) : this;
+ }
+ }, function fallback() {
+ return this;
+ }, function inspect() {
+ return { state: "rejected", reason: reason };
+ });
+
+ // Note that the reason has not been handled.
+ trackRejection(rejection, reason);
+
+ return rejection;
+}
+
+/**
+ * Constructs a fulfilled promise for an immediate reference.
+ * @param value immediate reference
+ */
+Q.fulfill = fulfill;
+function fulfill(value) {
+ return Promise({
+ "when": function () {
+ return value;
+ },
+ "get": function (name) {
+ return value[name];
+ },
+ "set": function (name, rhs) {
+ value[name] = rhs;
+ },
+ "delete": function (name) {
+ delete value[name];
+ },
+ "post": function (name, args) {
+ // Mark Miller proposes that post with no name should apply a
+ // promised function.
+ if (name === null || name === void 0) {
+ return value.apply(void 0, args);
+ } else {
+ return value[name].apply(value, args);
+ }
+ },
+ "apply": function (thisp, args) {
+ return value.apply(thisp, args);
+ },
+ "keys": function () {
+ return object_keys(value);
+ }
+ }, void 0, function inspect() {
+ return { state: "fulfilled", value: value };
+ });
+}
+
+/**
+ * Converts thenables to Q promises.
+ * @param promise thenable promise
+ * @returns a Q promise
+ */
+function coerce(promise) {
+ var deferred = defer();
+ Q.nextTick(function () {
+ try {
+ promise.then(deferred.resolve, deferred.reject, deferred.notify);
+ } catch (exception) {
+ deferred.reject(exception);
+ }
+ });
+ return deferred.promise;
+}
+
+/**
+ * Annotates an object such that it will never be
+ * transferred away from this process over any promise
+ * communication channel.
+ * @param object
+ * @returns promise a wrapping of that object that
+ * additionally responds to the "isDef" message
+ * without a rejection.
+ */
+Q.master = master;
+function master(object) {
+ return Promise({
+ "isDef": function () {}
+ }, function fallback(op, args) {
+ return dispatch(object, op, args);
+ }, function () {
+ return Q(object).inspect();
+ });
+}
+
+/**
+ * Spreads the values of a promised array of arguments into the
+ * fulfillment callback.
+ * @param fulfilled callback that receives variadic arguments from the
+ * promised array
+ * @param rejected callback that receives the exception if the promise
+ * is rejected.
+ * @returns a promise for the return value or thrown exception of
+ * either callback.
+ */
+Q.spread = spread;
+function spread(value, fulfilled, rejected) {
+ return Q(value).spread(fulfilled, rejected);
+}
+
+Promise.prototype.spread = function (fulfilled, rejected) {
+ return this.all().then(function (array) {
+ return fulfilled.apply(void 0, array);
+ }, rejected);
+};
+
+/**
+ * The async function is a decorator for generator functions, turning
+ * them into asynchronous generators. Although generators are only part
+ * of the newest ECMAScript 6 drafts, this code does not cause syntax
+ * errors in older engines. This code should continue to work and will
+ * in fact improve over time as the language improves.
+ *
+ * ES6 generators are currently part of V8 version 3.19 with the
+ * --harmony-generators runtime flag enabled. SpiderMonkey has had them
+ * for longer, but under an older Python-inspired form. This function
+ * works on both kinds of generators.
+ *
+ * Decorates a generator function such that:
+ * - it may yield promises
+ * - execution will continue when that promise is fulfilled
+ * - the value of the yield expression will be the fulfilled value
+ * - it returns a promise for the return value (when the generator
+ * stops iterating)
+ * - the decorated function returns a promise for the return value
+ * of the generator or the first rejected promise among those
+ * yielded.
+ * - if an error is thrown in the generator, it propagates through
+ * every following yield until it is caught, or until it escapes
+ * the generator function altogether, and is translated into a
+ * rejection for the promise returned by the decorated generator.
+ */
+Q.async = async;
+function async(makeGenerator) {
+ return function () {
+ // when verb is "send", arg is a value
+ // when verb is "throw", arg is an exception
+ function continuer(verb, arg) {
+ var result;
+
+ // Until V8 3.19 / Chromium 29 is released, SpiderMonkey is the only
+ // engine that has a deployed base of browsers that support generators.
+ // However, SM's generators use the Python-inspired semantics of
+ // outdated ES6 drafts. We would like to support ES6, but we'd also
+ // like to make it possible to use generators in deployed browsers, so
+ // we also support Python-style generators. At some point we can remove
+ // this block.
+
+ if (typeof StopIteration === "undefined") {
+ // ES6 Generators
+ try {
+ result = generator[verb](arg);
+ } catch (exception) {
+ return reject(exception);
+ }
+ if (result.done) {
+ return Q(result.value);
+ } else {
+ return when(result.value, callback, errback);
+ }
+ } else {
+ // SpiderMonkey Generators
+ // FIXME: Remove this case when SM does ES6 generators.
+ try {
+ result = generator[verb](arg);
+ } catch (exception) {
+ if (isStopIteration(exception)) {
+ return Q(exception.value);
+ } else {
+ return reject(exception);
+ }
+ }
+ return when(result, callback, errback);
+ }
+ }
+ var generator = makeGenerator.apply(this, arguments);
+ var callback = continuer.bind(continuer, "next");
+ var errback = continuer.bind(continuer, "throw");
+ return callback();
+ };
+}
+
+/**
+ * The spawn function is a small wrapper around async that immediately
+ * calls the generator and also ends the promise chain, so that any
+ * unhandled errors are thrown instead of forwarded to the error
+ * handler. This is useful because it's extremely common to run
+ * generators at the top-level to work with libraries.
+ */
+Q.spawn = spawn;
+function spawn(makeGenerator) {
+ Q.done(Q.async(makeGenerator)());
+}
+
+// FIXME: Remove this interface once ES6 generators are in SpiderMonkey.
+/**
+ * Throws a ReturnValue exception to stop an asynchronous generator.
+ *
+ * This interface is a stop-gap measure to support generator return
+ * values in older Firefox/SpiderMonkey. In browsers that support ES6
+ * generators like Chromium 29, just use "return" in your generator
+ * functions.
+ *
+ * @param value the return value for the surrounding generator
+ * @throws ReturnValue exception with the value.
+ * @example
+ * // ES6 style
+ * Q.async(function* () {
+ * var foo = yield getFooPromise();
+ * var bar = yield getBarPromise();
+ * return foo + bar;
+ * })
+ * // Older SpiderMonkey style
+ * Q.async(function () {
+ * var foo = yield getFooPromise();
+ * var bar = yield getBarPromise();
+ * Q.return(foo + bar);
+ * })
+ */
+Q["return"] = _return;
+function _return(value) {
+ throw new QReturnValue(value);
+}
+
+/**
+ * The promised function decorator ensures that any promise arguments
+ * are settled and passed as values (`this` is also settled and passed
+ * as a value). It will also ensure that the result of a function is
+ * always a promise.
+ *
+ * @example
+ * var add = Q.promised(function (a, b) {
+ * return a + b;
+ * });
+ * add(Q(a), Q(B));
+ *
+ * @param {function} callback The function to decorate
+ * @returns {function} a function that has been decorated.
+ */
+Q.promised = promised;
+function promised(callback) {
+ return function () {
+ return spread([this, all(arguments)], function (self, args) {
+ return callback.apply(self, args);
+ });
+ };
+}
+
+/**
+ * sends a message to a value in a future turn
+ * @param object* the recipient
+ * @param op the name of the message operation, e.g., "when",
+ * @param args further arguments to be forwarded to the operation
+ * @returns result {Promise} a promise for the result of the operation
+ */
+Q.dispatch = dispatch;
+function dispatch(object, op, args) {
+ return Q(object).dispatch(op, args);
+}
+
+Promise.prototype.dispatch = function (op, args) {
+ var self = this;
+ var deferred = defer();
+ Q.nextTick(function () {
+ self.promiseDispatch(deferred.resolve, op, args);
+ });
+ return deferred.promise;
+};
+
+/**
+ * Gets the value of a property in a future turn.
+ * @param object promise or immediate reference for target object
+ * @param name name of property to get
+ * @return promise for the property value
+ */
+Q.get = function (object, key) {
+ return Q(object).dispatch("get", [key]);
+};
+
+Promise.prototype.get = function (key) {
+ return this.dispatch("get", [key]);
+};
+
+/**
+ * Sets the value of a property in a future turn.
+ * @param object promise or immediate reference for object object
+ * @param name name of property to set
+ * @param value new value of property
+ * @return promise for the return value
+ */
+Q.set = function (object, key, value) {
+ return Q(object).dispatch("set", [key, value]);
+};
+
+Promise.prototype.set = function (key, value) {
+ return this.dispatch("set", [key, value]);
+};
+
+/**
+ * Deletes a property in a future turn.
+ * @param object promise or immediate reference for target object
+ * @param name name of property to delete
+ * @return promise for the return value
+ */
+Q.del = // XXX legacy
+Q["delete"] = function (object, key) {
+ return Q(object).dispatch("delete", [key]);
+};
+
+Promise.prototype.del = // XXX legacy
+Promise.prototype["delete"] = function (key) {
+ return this.dispatch("delete", [key]);
+};
+
+/**
+ * Invokes a method in a future turn.
+ * @param object promise or immediate reference for target object
+ * @param name name of method to invoke
+ * @param value a value to post, typically an array of
+ * invocation arguments for promises that
+ * are ultimately backed with `resolve` values,
+ * as opposed to those backed with URLs
+ * wherein the posted value can be any
+ * JSON serializable object.
+ * @return promise for the return value
+ */
+// bound locally because it is used by other methods
+Q.mapply = // XXX As proposed by "Redsandro"
+Q.post = function (object, name, args) {
+ return Q(object).dispatch("post", [name, args]);
+};
+
+Promise.prototype.mapply = // XXX As proposed by "Redsandro"
+Promise.prototype.post = function (name, args) {
+ return this.dispatch("post", [name, args]);
+};
+
+/**
+ * Invokes a method in a future turn.
+ * @param object promise or immediate reference for target object
+ * @param name name of method to invoke
+ * @param ...args array of invocation arguments
+ * @return promise for the return value
+ */
+Q.send = // XXX Mark Miller's proposed parlance
+Q.mcall = // XXX As proposed by "Redsandro"
+Q.invoke = function (object, name /*...args*/) {
+ return Q(object).dispatch("post", [name, array_slice(arguments, 2)]);
+};
+
+Promise.prototype.send = // XXX Mark Miller's proposed parlance
+Promise.prototype.mcall = // XXX As proposed by "Redsandro"
+Promise.prototype.invoke = function (name /*...args*/) {
+ return this.dispatch("post", [name, array_slice(arguments, 1)]);
+};
+
+/**
+ * Applies the promised function in a future turn.
+ * @param object promise or immediate reference for target function
+ * @param args array of application arguments
+ */
+Q.fapply = function (object, args) {
+ return Q(object).dispatch("apply", [void 0, args]);
+};
+
+Promise.prototype.fapply = function (args) {
+ return this.dispatch("apply", [void 0, args]);
+};
+
+/**
+ * Calls the promised function in a future turn.
+ * @param object promise or immediate reference for target function
+ * @param ...args array of application arguments
+ */
+Q["try"] =
+Q.fcall = function (object /* ...args*/) {
+ return Q(object).dispatch("apply", [void 0, array_slice(arguments, 1)]);
+};
+
+Promise.prototype.fcall = function (/*...args*/) {
+ return this.dispatch("apply", [void 0, array_slice(arguments)]);
+};
+
+/**
+ * Binds the promised function, transforming return values into a fulfilled
+ * promise and thrown errors into a rejected one.
+ * @param object promise or immediate reference for target function
+ * @param ...args array of application arguments
+ */
+Q.fbind = function (object /*...args*/) {
+ var promise = Q(object);
+ var args = array_slice(arguments, 1);
+ return function fbound() {
+ return promise.dispatch("apply", [
+ this,
+ args.concat(array_slice(arguments))
+ ]);
+ };
+};
+Promise.prototype.fbind = function (/*...args*/) {
+ var promise = this;
+ var args = array_slice(arguments);
+ return function fbound() {
+ return promise.dispatch("apply", [
+ this,
+ args.concat(array_slice(arguments))
+ ]);
+ };
+};
+
+/**
+ * Requests the names of the owned properties of a promised
+ * object in a future turn.
+ * @param object promise or immediate reference for target object
+ * @return promise for the keys of the eventually settled object
+ */
+Q.keys = function (object) {
+ return Q(object).dispatch("keys", []);
+};
+
+Promise.prototype.keys = function () {
+ return this.dispatch("keys", []);
+};
+
+/**
+ * Turns an array of promises into a promise for an array. If any of
+ * the promises gets rejected, the whole array is rejected immediately.
+ * @param {Array*} an array (or promise for an array) of values (or
+ * promises for values)
+ * @returns a promise for an array of the corresponding values
+ */
+// By Mark Miller
+// http://wiki.ecmascript.org/doku.php?id=strawman:concurrency&rev=1308776521#allfulfilled
+Q.all = all;
+function all(promises) {
+ return when(promises, function (promises) {
+ var pendingCount = 0;
+ var deferred = defer();
+ array_reduce(promises, function (undefined, promise, index) {
+ var snapshot;
+ if (
+ isPromise(promise) &&
+ (snapshot = promise.inspect()).state === "fulfilled"
+ ) {
+ promises[index] = snapshot.value;
+ } else {
+ ++pendingCount;
+ when(
+ promise,
+ function (value) {
+ promises[index] = value;
+ if (--pendingCount === 0) {
+ deferred.resolve(promises);
+ }
+ },
+ deferred.reject,
+ function (progress) {
+ deferred.notify({ index: index, value: progress });
+ }
+ );
+ }
+ }, void 0);
+ if (pendingCount === 0) {
+ deferred.resolve(promises);
+ }
+ return deferred.promise;
+ });
+}
+
+Promise.prototype.all = function () {
+ return all(this);
+};
+
+/**
+ * Returns the first resolved promise of an array. Prior rejected promises are
+ * ignored. Rejects only if all promises are rejected.
+ * @param {Array*} an array containing values or promises for values
+ * @returns a promise fulfilled with the value of the first resolved promise,
+ * or a rejected promise if all promises are rejected.
+ */
+Q.any = any;
+
+function any(promises) {
+ if (promises.length === 0) {
+ return Q.resolve();
+ }
+
+ var deferred = Q.defer();
+ var pendingCount = 0;
+ array_reduce(promises, function (prev, current, index) {
+ var promise = promises[index];
+
+ pendingCount++;
+
+ when(promise, onFulfilled, onRejected, onProgress);
+ function onFulfilled(result) {
+ deferred.resolve(result);
+ }
+ function onRejected() {
+ pendingCount--;
+ if (pendingCount === 0) {
+ deferred.reject(new Error(
+ "Can't get fulfillment value from any promise, all " +
+ "promises were rejected."
+ ));
+ }
+ }
+ function onProgress(progress) {
+ deferred.notify({
+ index: index,
+ value: progress
+ });
+ }
+ }, undefined);
+
+ return deferred.promise;
+}
+
+Promise.prototype.any = function () {
+ return any(this);
+};
+
+/**
+ * Waits for all promises to be settled, either fulfilled or
+ * rejected. This is distinct from `all` since that would stop
+ * waiting at the first rejection. The promise returned by
+ * `allResolved` will never be rejected.
+ * @param promises a promise for an array (or an array) of promises
+ * (or values)
+ * @return a promise for an array of promises
+ */
+Q.allResolved = deprecate(allResolved, "allResolved", "allSettled");
+function allResolved(promises) {
+ return when(promises, function (promises) {
+ promises = array_map(promises, Q);
+ return when(all(array_map(promises, function (promise) {
+ return when(promise, noop, noop);
+ })), function () {
+ return promises;
+ });
+ });
+}
+
+Promise.prototype.allResolved = function () {
+ return allResolved(this);
+};
+
+/**
+ * @see Promise#allSettled
+ */
+Q.allSettled = allSettled;
+function allSettled(promises) {
+ return Q(promises).allSettled();
+}
+
+/**
+ * Turns an array of promises into a promise for an array of their states (as
+ * returned by `inspect`) when they have all settled.
+ * @param {Array[Any*]} values an array (or promise for an array) of values (or
+ * promises for values)
+ * @returns {Array[State]} an array of states for the respective values.
+ */
+Promise.prototype.allSettled = function () {
+ return this.then(function (promises) {
+ return all(array_map(promises, function (promise) {
+ promise = Q(promise);
+ function regardless() {
+ return promise.inspect();
+ }
+ return promise.then(regardless, regardless);
+ }));
+ });
+};
+
+/**
+ * Captures the failure of a promise, giving an oportunity to recover
+ * with a callback. If the given promise is fulfilled, the returned
+ * promise is fulfilled.
+ * @param {Any*} promise for something
+ * @param {Function} callback to fulfill the returned promise if the
+ * given promise is rejected
+ * @returns a promise for the return value of the callback
+ */
+Q.fail = // XXX legacy
+Q["catch"] = function (object, rejected) {
+ return Q(object).then(void 0, rejected);
+};
+
+Promise.prototype.fail = // XXX legacy
+Promise.prototype["catch"] = function (rejected) {
+ return this.then(void 0, rejected);
+};
+
+/**
+ * Attaches a listener that can respond to progress notifications from a
+ * promise's originating deferred. This listener receives the exact arguments
+ * passed to ``deferred.notify``.
+ * @param {Any*} promise for something
+ * @param {Function} callback to receive any progress notifications
+ * @returns the given promise, unchanged
+ */
+Q.progress = progress;
+function progress(object, progressed) {
+ return Q(object).then(void 0, void 0, progressed);
+}
+
+Promise.prototype.progress = function (progressed) {
+ return this.then(void 0, void 0, progressed);
+};
+
+/**
+ * Provides an opportunity to observe the settling of a promise,
+ * regardless of whether the promise is fulfilled or rejected. Forwards
+ * the resolution to the returned promise when the callback is done.
+ * The callback can return a promise to defer completion.
+ * @param {Any*} promise
+ * @param {Function} callback to observe the resolution of the given
+ * promise, takes no arguments.
+ * @returns a promise for the resolution of the given promise when
+ * ``fin`` is done.
+ */
+Q.fin = // XXX legacy
+Q["finally"] = function (object, callback) {
+ return Q(object)["finally"](callback);
+};
+
+Promise.prototype.fin = // XXX legacy
+Promise.prototype["finally"] = function (callback) {
+ if (!callback || typeof callback.apply !== "function") {
+ throw new Error("Can't apply finally callback");
+ }
+ callback = Q(callback);
+ return this.then(function (value) {
+ return callback.fcall().then(function () {
+ return value;
+ });
+ }, function (reason) {
+ // TODO attempt to recycle the rejection with "this".
+ return callback.fcall().then(function () {
+ throw reason;
+ });
+ });
+};
+
+/**
+ * Terminates a chain of promises, forcing rejections to be
+ * thrown as exceptions.
+ * @param {Any*} promise at the end of a chain of promises
+ * @returns nothing
+ */
+Q.done = function (object, fulfilled, rejected, progress) {
+ return Q(object).done(fulfilled, rejected, progress);
+};
+
+Promise.prototype.done = function (fulfilled, rejected, progress) {
+ var onUnhandledError = function (error) {
+ // forward to a future turn so that ``when``
+ // does not catch it and turn it into a rejection.
+ Q.nextTick(function () {
+ makeStackTraceLong(error, promise);
+ if (Q.onerror) {
+ Q.onerror(error);
+ } else {
+ throw error;
+ }
+ });
+ };
+
+ // Avoid unnecessary `nextTick`ing via an unnecessary `when`.
+ var promise = fulfilled || rejected || progress ?
+ this.then(fulfilled, rejected, progress) :
+ this;
+
+ if (typeof process === "object" && process && process.domain) {
+ onUnhandledError = process.domain.bind(onUnhandledError);
+ }
+
+ promise.then(void 0, onUnhandledError);
+};
+
+/**
+ * Causes a promise to be rejected if it does not get fulfilled before
+ * some milliseconds time out.
+ * @param {Any*} promise
+ * @param {Number} milliseconds timeout
+ * @param {Any*} custom error message or Error object (optional)
+ * @returns a promise for the resolution of the given promise if it is
+ * fulfilled before the timeout, otherwise rejected.
+ */
+Q.timeout = function (object, ms, error) {
+ return Q(object).timeout(ms, error);
+};
+
+Promise.prototype.timeout = function (ms, error) {
+ var deferred = defer();
+ var timeoutId = setTimeout(function () {
+ if (!error || "string" === typeof error) {
+ error = new Error(error || "Timed out after " + ms + " ms");
+ error.code = "ETIMEDOUT";
+ }
+ deferred.reject(error);
+ }, ms);
+
+ this.then(function (value) {
+ clearTimeout(timeoutId);
+ deferred.resolve(value);
+ }, function (exception) {
+ clearTimeout(timeoutId);
+ deferred.reject(exception);
+ }, deferred.notify);
+
+ return deferred.promise;
+};
+
+/**
+ * Returns a promise for the given value (or promised value), some
+ * milliseconds after it resolved. Passes rejections immediately.
+ * @param {Any*} promise
+ * @param {Number} milliseconds
+ * @returns a promise for the resolution of the given promise after milliseconds
+ * time has elapsed since the resolution of the given promise.
+ * If the given promise rejects, that is passed immediately.
+ */
+Q.delay = function (object, timeout) {
+ if (timeout === void 0) {
+ timeout = object;
+ object = void 0;
+ }
+ return Q(object).delay(timeout);
+};
+
+Promise.prototype.delay = function (timeout) {
+ return this.then(function (value) {
+ var deferred = defer();
+ setTimeout(function () {
+ deferred.resolve(value);
+ }, timeout);
+ return deferred.promise;
+ });
+};
+
+/**
+ * Passes a continuation to a Node function, which is called with the given
+ * arguments provided as an array, and returns a promise.
+ *
+ * Q.nfapply(FS.readFile, [__filename])
+ * .then(function (content) {
+ * })
+ *
+ */
+Q.nfapply = function (callback, args) {
+ return Q(callback).nfapply(args);
+};
+
+Promise.prototype.nfapply = function (args) {
+ var deferred = defer();
+ var nodeArgs = array_slice(args);
+ nodeArgs.push(deferred.makeNodeResolver());
+ this.fapply(nodeArgs).fail(deferred.reject);
+ return deferred.promise;
+};
+
+/**
+ * Passes a continuation to a Node function, which is called with the given
+ * arguments provided individually, and returns a promise.
+ * @example
+ * Q.nfcall(FS.readFile, __filename)
+ * .then(function (content) {
+ * })
+ *
+ */
+Q.nfcall = function (callback /*...args*/) {
+ var args = array_slice(arguments, 1);
+ return Q(callback).nfapply(args);
+};
+
+Promise.prototype.nfcall = function (/*...args*/) {
+ var nodeArgs = array_slice(arguments);
+ var deferred = defer();
+ nodeArgs.push(deferred.makeNodeResolver());
+ this.fapply(nodeArgs).fail(deferred.reject);
+ return deferred.promise;
+};
+
+/**
+ * Wraps a NodeJS continuation passing function and returns an equivalent
+ * version that returns a promise.
+ * @example
+ * Q.nfbind(FS.readFile, __filename)("utf-8")
+ * .then(console.log)
+ * .done()
+ */
+Q.nfbind =
+Q.denodeify = function (callback /*...args*/) {
+ var baseArgs = array_slice(arguments, 1);
+ return function () {
+ var nodeArgs = baseArgs.concat(array_slice(arguments));
+ var deferred = defer();
+ nodeArgs.push(deferred.makeNodeResolver());
+ Q(callback).fapply(nodeArgs).fail(deferred.reject);
+ return deferred.promise;
+ };
+};
+
+Promise.prototype.nfbind =
+Promise.prototype.denodeify = function (/*...args*/) {
+ var args = array_slice(arguments);
+ args.unshift(this);
+ return Q.denodeify.apply(void 0, args);
+};
+
+Q.nbind = function (callback, thisp /*...args*/) {
+ var baseArgs = array_slice(arguments, 2);
+ return function () {
+ var nodeArgs = baseArgs.concat(array_slice(arguments));
+ var deferred = defer();
+ nodeArgs.push(deferred.makeNodeResolver());
+ function bound() {
+ return callback.apply(thisp, arguments);
+ }
+ Q(bound).fapply(nodeArgs).fail(deferred.reject);
+ return deferred.promise;
+ };
+};
+
+Promise.prototype.nbind = function (/*thisp, ...args*/) {
+ var args = array_slice(arguments, 0);
+ args.unshift(this);
+ return Q.nbind.apply(void 0, args);
+};
+
+/**
+ * Calls a method of a Node-style object that accepts a Node-style
+ * callback with a given array of arguments, plus a provided callback.
+ * @param object an object that has the named method
+ * @param {String} name name of the method of object
+ * @param {Array} args arguments to pass to the method; the callback
+ * will be provided by Q and appended to these arguments.
+ * @returns a promise for the value or error
+ */
+Q.nmapply = // XXX As proposed by "Redsandro"
+Q.npost = function (object, name, args) {
+ return Q(object).npost(name, args);
+};
+
+Promise.prototype.nmapply = // XXX As proposed by "Redsandro"
+Promise.prototype.npost = function (name, args) {
+ var nodeArgs = array_slice(args || []);
+ var deferred = defer();
+ nodeArgs.push(deferred.makeNodeResolver());
+ this.dispatch("post", [name, nodeArgs]).fail(deferred.reject);
+ return deferred.promise;
+};
+
+/**
+ * Calls a method of a Node-style object that accepts a Node-style
+ * callback, forwarding the given variadic arguments, plus a provided
+ * callback argument.
+ * @param object an object that has the named method
+ * @param {String} name name of the method of object
+ * @param ...args arguments to pass to the method; the callback will
+ * be provided by Q and appended to these arguments.
+ * @returns a promise for the value or error
+ */
+Q.nsend = // XXX Based on Mark Miller's proposed "send"
+Q.nmcall = // XXX Based on "Redsandro's" proposal
+Q.ninvoke = function (object, name /*...args*/) {
+ var nodeArgs = array_slice(arguments, 2);
+ var deferred = defer();
+ nodeArgs.push(deferred.makeNodeResolver());
+ Q(object).dispatch("post", [name, nodeArgs]).fail(deferred.reject);
+ return deferred.promise;
+};
+
+Promise.prototype.nsend = // XXX Based on Mark Miller's proposed "send"
+Promise.prototype.nmcall = // XXX Based on "Redsandro's" proposal
+Promise.prototype.ninvoke = function (name /*...args*/) {
+ var nodeArgs = array_slice(arguments, 1);
+ var deferred = defer();
+ nodeArgs.push(deferred.makeNodeResolver());
+ this.dispatch("post", [name, nodeArgs]).fail(deferred.reject);
+ return deferred.promise;
+};
+
+/**
+ * If a function would like to support both Node continuation-passing-style and
+ * promise-returning-style, it can end its internal promise chain with
+ * `nodeify(nodeback)`, forwarding the optional nodeback argument. If the user
+ * elects to use a nodeback, the result will be sent there. If they do not
+ * pass a nodeback, they will receive the result promise.
+ * @param object a result (or a promise for a result)
+ * @param {Function} nodeback a Node.js-style callback
+ * @returns either the promise or nothing
+ */
+Q.nodeify = nodeify;
+function nodeify(object, nodeback) {
+ return Q(object).nodeify(nodeback);
+}
+
+Promise.prototype.nodeify = function (nodeback) {
+ if (nodeback) {
+ this.then(function (value) {
+ Q.nextTick(function () {
+ nodeback(null, value);
+ });
+ }, function (error) {
+ Q.nextTick(function () {
+ nodeback(error);
+ });
+ });
+ } else {
+ return this;
+ }
+};
+
+Q.noConflict = function() {
+ throw new Error("Q.noConflict only works when Q is used as a global");
+};
+
+// All code before this point will be filtered from stack traces.
+var qEndingLine = captureLine();
+
+return Q;
+
+});
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-26 06:07:47 +0000