testing/mochitest/MochiKit/Async.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/testing/mochitest/MochiKit/Async.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,681 @@
     1.4 +/***
     1.5 +
     1.6 +MochiKit.Async 1.4
     1.7 +
     1.8 +See <http://mochikit.com/> for documentation, downloads, license, etc.
     1.9 +
    1.10 +(c) 2005 Bob Ippolito.  All rights Reserved.
    1.11 +
    1.12 +***/
    1.13 +
    1.14 +if (typeof(dojo) != 'undefined') {
    1.15 +    dojo.provide("MochiKit.Async");
    1.16 +    dojo.require("MochiKit.Base");
    1.17 +}
    1.18 +if (typeof(JSAN) != 'undefined') {
    1.19 +    JSAN.use("MochiKit.Base", []);
    1.20 +}
    1.21 +
    1.22 +try {
    1.23 +    if (typeof(MochiKit.Base) == 'undefined') {
    1.24 +        throw "";
    1.25 +    }
    1.26 +} catch (e) {
    1.27 +    throw "MochiKit.Async depends on MochiKit.Base!";
    1.28 +}
    1.29 +
    1.30 +if (typeof(MochiKit.Async) == 'undefined') {
    1.31 +    MochiKit.Async = {};
    1.32 +}
    1.33 +
    1.34 +MochiKit.Async.NAME = "MochiKit.Async";
    1.35 +MochiKit.Async.VERSION = "1.4";
    1.36 +MochiKit.Async.__repr__ = function () {
    1.37 +    return "[" + this.NAME + " " + this.VERSION + "]";
    1.38 +};
    1.39 +MochiKit.Async.toString = function () {
    1.40 +    return this.__repr__();
    1.41 +};
    1.42 +
    1.43 +/** @id MochiKit.Async.Deferred */
    1.44 +MochiKit.Async.Deferred = function (/* optional */ canceller) {
    1.45 +    this.chain = [];
    1.46 +    this.id = this._nextId();
    1.47 +    this.fired = -1;
    1.48 +    this.paused = 0;
    1.49 +    this.results = [null, null];
    1.50 +    this.canceller = canceller;
    1.51 +    this.silentlyCancelled = false;
    1.52 +    this.chained = false;
    1.53 +};
    1.54 +
    1.55 +MochiKit.Async.Deferred.prototype = {
    1.56 +    /** @id MochiKit.Async.Deferred.prototype.repr */
    1.57 +    repr: function () {
    1.58 +        var state;
    1.59 +        if (this.fired == -1) {
    1.60 +            state = 'unfired';
    1.61 +        } else if (this.fired === 0) {
    1.62 +            state = 'success';
    1.63 +        } else {
    1.64 +            state = 'error';
    1.65 +        }
    1.66 +        return 'Deferred(' + this.id + ', ' + state + ')';
    1.67 +    },
    1.68 +
    1.69 +    toString: MochiKit.Base.forwardCall("repr"),
    1.70 +
    1.71 +    _nextId: MochiKit.Base.counter(),
    1.72 +
    1.73 +    /** @id MochiKit.Async.Deferred.prototype.cancel */
    1.74 +    cancel: function () {
    1.75 +        var self = MochiKit.Async;
    1.76 +        if (this.fired == -1) {
    1.77 +            if (this.canceller) {
    1.78 +                this.canceller(this);
    1.79 +            } else {
    1.80 +                this.silentlyCancelled = true;
    1.81 +            }
    1.82 +            if (this.fired == -1) {
    1.83 +                this.errback(new self.CancelledError(this));
    1.84 +            }
    1.85 +        } else if ((this.fired === 0) && (this.results[0] instanceof self.Deferred)) {
    1.86 +            this.results[0].cancel();
    1.87 +        }
    1.88 +    },
    1.89 +            
    1.90 +    _resback: function (res) {
    1.91 +        /***
    1.92 +
    1.93 +        The primitive that means either callback or errback
    1.94 +
    1.95 +        ***/
    1.96 +        this.fired = ((res instanceof Error) ? 1 : 0);
    1.97 +        this.results[this.fired] = res;
    1.98 +        this._fire();
    1.99 +    },
   1.100 +
   1.101 +    _check: function () {
   1.102 +        if (this.fired != -1) {
   1.103 +            if (!this.silentlyCancelled) {
   1.104 +                throw new MochiKit.Async.AlreadyCalledError(this);
   1.105 +            }
   1.106 +            this.silentlyCancelled = false;
   1.107 +            return;
   1.108 +        }
   1.109 +    },
   1.110 +
   1.111 +    /** @id MochiKit.Async.Deferred.prototype.callback */
   1.112 +    callback: function (res) {
   1.113 +        this._check();
   1.114 +        if (res instanceof MochiKit.Async.Deferred) {
   1.115 +            throw new Error("Deferred instances can only be chained if they are the result of a callback");
   1.116 +        }
   1.117 +        this._resback(res);
   1.118 +    },
   1.119 +
   1.120 +    /** @id MochiKit.Async.Deferred.prototype.errback */
   1.121 +    errback: function (res) {
   1.122 +        this._check();
   1.123 +        var self = MochiKit.Async;
   1.124 +        if (res instanceof self.Deferred) {
   1.125 +            throw new Error("Deferred instances can only be chained if they are the result of a callback");
   1.126 +        }
   1.127 +        if (!(res instanceof Error)) {
   1.128 +            res = new self.GenericError(res);
   1.129 +        }
   1.130 +        this._resback(res);
   1.131 +    },
   1.132 +
   1.133 +    /** @id MochiKit.Async.Deferred.prototype.addBoth */
   1.134 +    addBoth: function (fn) {
   1.135 +        if (arguments.length > 1) {
   1.136 +            fn = MochiKit.Base.partial.apply(null, arguments);
   1.137 +        }
   1.138 +        return this.addCallbacks(fn, fn);
   1.139 +    },
   1.140 +
   1.141 +    /** @id MochiKit.Async.Deferred.prototype.addCallback */
   1.142 +    addCallback: function (fn) {
   1.143 +        if (arguments.length > 1) {
   1.144 +            fn = MochiKit.Base.partial.apply(null, arguments);
   1.145 +        }
   1.146 +        return this.addCallbacks(fn, null);
   1.147 +    },
   1.148 +
   1.149 +    /** @id MochiKit.Async.Deferred.prototype.addErrback */
   1.150 +    addErrback: function (fn) {
   1.151 +        if (arguments.length > 1) {
   1.152 +            fn = MochiKit.Base.partial.apply(null, arguments);
   1.153 +        }
   1.154 +        return this.addCallbacks(null, fn);
   1.155 +    },
   1.156 +
   1.157 +    /** @id MochiKit.Async.Deferred.prototype.addCallbacks */
   1.158 +    addCallbacks: function (cb, eb) {
   1.159 +        if (this.chained) {
   1.160 +            throw new Error("Chained Deferreds can not be re-used");
   1.161 +        }
   1.162 +        this.chain.push([cb, eb]);
   1.163 +        if (this.fired >= 0) {
   1.164 +            this._fire();
   1.165 +        }
   1.166 +        return this;
   1.167 +    },
   1.168 +
   1.169 +    _fire: function () {
   1.170 +        /***
   1.171 +
   1.172 +        Used internally to exhaust the callback sequence when a result
   1.173 +        is available.
   1.174 +
   1.175 +        ***/
   1.176 +        var chain = this.chain;
   1.177 +        var fired = this.fired;
   1.178 +        var res = this.results[fired];
   1.179 +        var self = this;
   1.180 +        var cb = null;
   1.181 +        while (chain.length > 0 && this.paused === 0) {
   1.182 +            // Array
   1.183 +            var pair = chain.shift();
   1.184 +            var f = pair[fired];
   1.185 +            if (f === null) {
   1.186 +                continue;
   1.187 +            }
   1.188 +            try {
   1.189 +                res = f(res);
   1.190 +                fired = ((res instanceof Error) ? 1 : 0);
   1.191 +                if (res instanceof MochiKit.Async.Deferred) {
   1.192 +                    cb = function (res) {
   1.193 +                        self._resback(res);
   1.194 +                        self.paused--;
   1.195 +                        if ((self.paused === 0) && (self.fired >= 0)) {
   1.196 +                            self._fire();
   1.197 +                        }
   1.198 +                    };
   1.199 +                    this.paused++;
   1.200 +                }
   1.201 +            } catch (err) {
   1.202 +                fired = 1;
   1.203 +                if (!(err instanceof Error)) {
   1.204 +                    err = new MochiKit.Async.GenericError(err);
   1.205 +                }
   1.206 +                res = err;
   1.207 +            }
   1.208 +        }
   1.209 +        this.fired = fired;
   1.210 +        this.results[fired] = res;
   1.211 +        if (cb && this.paused) {
   1.212 +            // this is for "tail recursion" in case the dependent deferred
   1.213 +            // is already fired
   1.214 +            res.addBoth(cb);
   1.215 +            res.chained = true;
   1.216 +        }
   1.217 +    }
   1.218 +};
   1.219 +
   1.220 +MochiKit.Base.update(MochiKit.Async, {
   1.221 +    /** @id MochiKit.Async.evalJSONRequest */
   1.222 +    evalJSONRequest: function (/* req */) {
   1.223 +        return eval('(' + arguments[0].responseText + ')');
   1.224 +    },
   1.225 +
   1.226 +    /** @id MochiKit.Async.succeed */
   1.227 +    succeed: function (/* optional */result) {
   1.228 +        var d = new MochiKit.Async.Deferred();
   1.229 +        d.callback.apply(d, arguments);
   1.230 +        return d;
   1.231 +    },
   1.232 +
   1.233 +    /** @id MochiKit.Async.fail */
   1.234 +    fail: function (/* optional */result) {
   1.235 +        var d = new MochiKit.Async.Deferred();
   1.236 +        d.errback.apply(d, arguments);
   1.237 +        return d;
   1.238 +    },
   1.239 +
   1.240 +    /** @id MochiKit.Async.getXMLHttpRequest */
   1.241 +    getXMLHttpRequest: function () {
   1.242 +        var self = arguments.callee;
   1.243 +        if (!self.XMLHttpRequest) {
   1.244 +            var tryThese = [
   1.245 +                function () { return new XMLHttpRequest(); },
   1.246 +                function () { return new ActiveXObject('Msxml2.XMLHTTP'); },
   1.247 +                function () { return new ActiveXObject('Microsoft.XMLHTTP'); },
   1.248 +                function () { return new ActiveXObject('Msxml2.XMLHTTP.4.0'); },
   1.249 +                function () {
   1.250 +                    throw new MochiKit.Async.BrowserComplianceError("Browser does not support XMLHttpRequest");
   1.251 +                }
   1.252 +            ];
   1.253 +            for (var i = 0; i < tryThese.length; i++) {
   1.254 +                var func = tryThese[i];
   1.255 +                try {
   1.256 +                    self.XMLHttpRequest = func;
   1.257 +                    return func();
   1.258 +                } catch (e) {
   1.259 +                    // pass
   1.260 +                }
   1.261 +            }
   1.262 +        }
   1.263 +        return self.XMLHttpRequest();
   1.264 +    },
   1.265 +
   1.266 +    _xhr_onreadystatechange: function (d) {
   1.267 +        // MochiKit.Logging.logDebug('this.readyState', this.readyState);
   1.268 +        var m = MochiKit.Base;
   1.269 +        if (this.readyState == 4) {
   1.270 +            // IE SUCKS
   1.271 +            try {
   1.272 +                this.onreadystatechange = null;
   1.273 +            } catch (e) {
   1.274 +                try {
   1.275 +                    this.onreadystatechange = m.noop;
   1.276 +                } catch (e) {
   1.277 +                }
   1.278 +            }
   1.279 +            var status = null;
   1.280 +            try {
   1.281 +                status = this.status;
   1.282 +                if (!status && m.isNotEmpty(this.responseText)) {
   1.283 +                    // 0 or undefined seems to mean cached or local
   1.284 +                    status = 304;
   1.285 +                }
   1.286 +            } catch (e) {
   1.287 +                // pass
   1.288 +                // MochiKit.Logging.logDebug('error getting status?', repr(items(e)));
   1.289 +            }
   1.290 +            //  200 is OK, 304 is NOT_MODIFIED
   1.291 +            if (status == 200 || status == 304) { // OK
   1.292 +                d.callback(this);
   1.293 +            } else {
   1.294 +                var err = new MochiKit.Async.XMLHttpRequestError(this, "Request failed");
   1.295 +                if (err.number) {
   1.296 +                    // XXX: This seems to happen on page change
   1.297 +                    d.errback(err);
   1.298 +                } else {
   1.299 +                    // XXX: this seems to happen when the server is unreachable
   1.300 +                    d.errback(err);
   1.301 +                }
   1.302 +            }
   1.303 +        }
   1.304 +    },
   1.305 +
   1.306 +    _xhr_canceller: function (req) {
   1.307 +        // IE SUCKS
   1.308 +        try {
   1.309 +            req.onreadystatechange = null;
   1.310 +        } catch (e) {
   1.311 +            try {
   1.312 +                req.onreadystatechange = MochiKit.Base.noop;
   1.313 +            } catch (e) {
   1.314 +            }
   1.315 +        }
   1.316 +        req.abort();
   1.317 +    },
   1.318 +
   1.319 +    
   1.320 +    /** @id MochiKit.Async.sendXMLHttpRequest */
   1.321 +    sendXMLHttpRequest: function (req, /* optional */ sendContent) {
   1.322 +        if (typeof(sendContent) == "undefined" || sendContent === null) {
   1.323 +            sendContent = "";
   1.324 +        }
   1.325 +
   1.326 +        var m = MochiKit.Base;
   1.327 +        var self = MochiKit.Async;
   1.328 +        var d = new self.Deferred(m.partial(self._xhr_canceller, req));
   1.329 +        
   1.330 +        try {
   1.331 +            req.onreadystatechange = m.bind(self._xhr_onreadystatechange,
   1.332 +                req, d);
   1.333 +            req.send(sendContent);
   1.334 +        } catch (e) {
   1.335 +            try {
   1.336 +                req.onreadystatechange = null;
   1.337 +            } catch (ignore) {
   1.338 +                // pass
   1.339 +            }
   1.340 +            d.errback(e);
   1.341 +        }
   1.342 +
   1.343 +        return d;
   1.344 +
   1.345 +    },
   1.346 +
   1.347 +    /** @id MochiKit.Async.doXHR */
   1.348 +    doXHR: function (url, opts) {
   1.349 +        var m = MochiKit.Base;
   1.350 +        opts = m.update({
   1.351 +            method: 'GET',
   1.352 +            sendContent: ''
   1.353 +            /*
   1.354 +            queryString: undefined,
   1.355 +            username: undefined,
   1.356 +            password: undefined,
   1.357 +            headers: undefined,
   1.358 +            mimeType: undefined
   1.359 +            */
   1.360 +        }, opts);
   1.361 +        var self = MochiKit.Async;
   1.362 +        var req = self.getXMLHttpRequest();
   1.363 +        if (opts.queryString) {
   1.364 +            var qs = m.queryString(opts.queryString);
   1.365 +            if (qs) {
   1.366 +                url += "?" + qs;
   1.367 +            }
   1.368 +        }
   1.369 +        req.open(opts.method, url, true, opts.username, opts.password);
   1.370 +        if (req.overrideMimeType && opts.mimeType) {
   1.371 +            req.overrideMimeType(opts.mimeType);
   1.372 +        }
   1.373 +        if (opts.headers) {
   1.374 +            var headers = opts.headers;
   1.375 +            if (!m.isArrayLike(headers)) {
   1.376 +                headers = m.items(headers);
   1.377 +            }
   1.378 +            for (var i = 0; i < headers.length; i++) {
   1.379 +                var header = headers[i];
   1.380 +                var name = header[0];
   1.381 +                var value = header[1];
   1.382 +                req.setRequestHeader(name, value);
   1.383 +            }
   1.384 +        }
   1.385 +        return self.sendXMLHttpRequest(req, opts.sendContent);
   1.386 +    },
   1.387 +            
   1.388 +    _buildURL: function (url/*, ...*/) {
   1.389 +        if (arguments.length > 1) {
   1.390 +            var m = MochiKit.Base;
   1.391 +            var qs = m.queryString.apply(null, m.extend(null, arguments, 1));
   1.392 +            if (qs) {
   1.393 +                return url + "?" + qs;
   1.394 +            }
   1.395 +        }
   1.396 +        return url;
   1.397 +    },
   1.398 +    
   1.399 +    /** @id MochiKit.Async.doSimpleXMLHttpRequest */
   1.400 +    doSimpleXMLHttpRequest: function (url/*, ...*/) {
   1.401 +        var self = MochiKit.Async;
   1.402 +        url = self._buildURL.apply(self, arguments);
   1.403 +        return self.doXHR(url);
   1.404 +    },
   1.405 +
   1.406 +    /** @id MochiKit.Async.loadJSONDoc */
   1.407 +    loadJSONDoc: function (url/*, ...*/) {
   1.408 +        var self = MochiKit.Async;
   1.409 +        url = self._buildURL.apply(self, arguments);
   1.410 +        var d = self.doXHR(url, {
   1.411 +            'mimeType': 'text/plain',
   1.412 +            'headers': [['Accept', 'application/json']]
   1.413 +        });
   1.414 +        d = d.addCallback(self.evalJSONRequest);
   1.415 +        return d;
   1.416 +    },
   1.417 +
   1.418 +    /** @id MochiKit.Async.wait */
   1.419 +    wait: function (seconds, /* optional */value) {
   1.420 +        var d = new MochiKit.Async.Deferred();
   1.421 +        var m = MochiKit.Base;
   1.422 +        if (typeof(value) != 'undefined') {
   1.423 +            d.addCallback(function () { return value; });
   1.424 +        }
   1.425 +        var timeout = setTimeout(
   1.426 +            m.bind("callback", d),
   1.427 +            Math.floor(seconds * 1000));
   1.428 +        d.canceller = function () {
   1.429 +            try {
   1.430 +                clearTimeout(timeout);
   1.431 +            } catch (e) {
   1.432 +                // pass
   1.433 +            }
   1.434 +        };
   1.435 +        return d;
   1.436 +    },
   1.437 +
   1.438 +    /** @id MochiKit.Async.callLater */
   1.439 +    callLater: function (seconds, func) {
   1.440 +        var m = MochiKit.Base;
   1.441 +        var pfunc = m.partial.apply(m, m.extend(null, arguments, 1));
   1.442 +        return MochiKit.Async.wait(seconds).addCallback(
   1.443 +            function (res) { return pfunc(); }
   1.444 +        );
   1.445 +    }
   1.446 +});
   1.447 +
   1.448 +
   1.449 +/** @id MochiKit.Async.DeferredLock */
   1.450 +MochiKit.Async.DeferredLock = function () {
   1.451 +    this.waiting = [];
   1.452 +    this.locked = false;
   1.453 +    this.id = this._nextId();
   1.454 +};
   1.455 +
   1.456 +MochiKit.Async.DeferredLock.prototype = {
   1.457 +    __class__: MochiKit.Async.DeferredLock,
   1.458 +    /** @id MochiKit.Async.DeferredLock.prototype.acquire */
   1.459 +    acquire: function () {
   1.460 +        var d = new MochiKit.Async.Deferred();
   1.461 +        if (this.locked) {
   1.462 +            this.waiting.push(d);
   1.463 +        } else {
   1.464 +            this.locked = true;
   1.465 +            d.callback(this);
   1.466 +        }
   1.467 +        return d;
   1.468 +    },
   1.469 +    /** @id MochiKit.Async.DeferredLock.prototype.release */
   1.470 +    release: function () {
   1.471 +        if (!this.locked) {
   1.472 +            throw TypeError("Tried to release an unlocked DeferredLock");
   1.473 +        }
   1.474 +        this.locked = false;
   1.475 +        if (this.waiting.length > 0) {
   1.476 +            this.locked = true;
   1.477 +            this.waiting.shift().callback(this);
   1.478 +        }
   1.479 +    },
   1.480 +    _nextId: MochiKit.Base.counter(),
   1.481 +    repr: function () {
   1.482 +        var state;
   1.483 +        if (this.locked) {
   1.484 +            state = 'locked, ' + this.waiting.length + ' waiting';
   1.485 +        } else {
   1.486 +            state = 'unlocked';
   1.487 +        }
   1.488 +        return 'DeferredLock(' + this.id + ', ' + state + ')';
   1.489 +    },
   1.490 +    toString: MochiKit.Base.forwardCall("repr")
   1.491 +
   1.492 +};
   1.493 +
   1.494 +/** @id MochiKit.Async.DeferredList */
   1.495 +MochiKit.Async.DeferredList = function (list, /* optional */fireOnOneCallback, fireOnOneErrback, consumeErrors, canceller) {
   1.496 +
   1.497 +    // call parent constructor
   1.498 +    MochiKit.Async.Deferred.apply(this, [canceller]);
   1.499 +    
   1.500 +    this.list = list;
   1.501 +    var resultList = [];
   1.502 +    this.resultList = resultList;
   1.503 +
   1.504 +    this.finishedCount = 0;
   1.505 +    this.fireOnOneCallback = fireOnOneCallback;
   1.506 +    this.fireOnOneErrback = fireOnOneErrback;
   1.507 +    this.consumeErrors = consumeErrors;
   1.508 +
   1.509 +    var cb = MochiKit.Base.bind(this._cbDeferred, this);
   1.510 +    for (var i = 0; i < list.length; i++) {
   1.511 +        var d = list[i];
   1.512 +        resultList.push(undefined);
   1.513 +        d.addCallback(cb, i, true);
   1.514 +        d.addErrback(cb, i, false);
   1.515 +    }
   1.516 +
   1.517 +    if (list.length === 0 && !fireOnOneCallback) {
   1.518 +        this.callback(this.resultList);
   1.519 +    }
   1.520 +    
   1.521 +};
   1.522 +
   1.523 +MochiKit.Async.DeferredList.prototype = new MochiKit.Async.Deferred();
   1.524 +
   1.525 +MochiKit.Async.DeferredList.prototype._cbDeferred = function (index, succeeded, result) {
   1.526 +    this.resultList[index] = [succeeded, result];
   1.527 +    this.finishedCount += 1;
   1.528 +    if (this.fired == -1) {
   1.529 +        if (succeeded && this.fireOnOneCallback) {
   1.530 +            this.callback([index, result]);
   1.531 +        } else if (!succeeded && this.fireOnOneErrback) {
   1.532 +            this.errback(result);
   1.533 +        } else if (this.finishedCount == this.list.length) {
   1.534 +            this.callback(this.resultList);
   1.535 +        }
   1.536 +    }
   1.537 +    if (!succeeded && this.consumeErrors) {
   1.538 +        result = null;
   1.539 +    }
   1.540 +    return result;
   1.541 +};
   1.542 +
   1.543 +/** @id MochiKit.Async.gatherResults */
   1.544 +MochiKit.Async.gatherResults = function (deferredList) {
   1.545 +    var d = new MochiKit.Async.DeferredList(deferredList, false, true, false);
   1.546 +    d.addCallback(function (results) {
   1.547 +        var ret = [];
   1.548 +        for (var i = 0; i < results.length; i++) {
   1.549 +            ret.push(results[i][1]);
   1.550 +        }
   1.551 +        return ret;
   1.552 +    });
   1.553 +    return d;
   1.554 +};
   1.555 +
   1.556 +/** @id MochiKit.Async.maybeDeferred */
   1.557 +MochiKit.Async.maybeDeferred = function (func) {
   1.558 +    var self = MochiKit.Async;
   1.559 +    var result;
   1.560 +    try {
   1.561 +        var r = func.apply(null, MochiKit.Base.extend([], arguments, 1));
   1.562 +        if (r instanceof self.Deferred) {
   1.563 +            result = r;
   1.564 +        } else if (r instanceof Error) {
   1.565 +            result = self.fail(r);
   1.566 +        } else {
   1.567 +            result = self.succeed(r);
   1.568 +        }
   1.569 +    } catch (e) {
   1.570 +        result = self.fail(e);
   1.571 +    }
   1.572 +    return result;
   1.573 +};
   1.574 +
   1.575 +
   1.576 +MochiKit.Async.EXPORT = [
   1.577 +    "AlreadyCalledError",
   1.578 +    "CancelledError",
   1.579 +    "BrowserComplianceError",
   1.580 +    "GenericError",
   1.581 +    "XMLHttpRequestError",
   1.582 +    "Deferred",
   1.583 +    "succeed",
   1.584 +    "fail",
   1.585 +    "getXMLHttpRequest",
   1.586 +    "doSimpleXMLHttpRequest",
   1.587 +    "loadJSONDoc",
   1.588 +    "wait",
   1.589 +    "callLater",
   1.590 +    "sendXMLHttpRequest",
   1.591 +    "DeferredLock",
   1.592 +    "DeferredList",
   1.593 +    "gatherResults",
   1.594 +    "maybeDeferred",
   1.595 +    "doXHR"
   1.596 +];
   1.597 +    
   1.598 +MochiKit.Async.EXPORT_OK = [
   1.599 +    "evalJSONRequest"
   1.600 +];
   1.601 +
   1.602 +MochiKit.Async.__new__ = function () {
   1.603 +    var m = MochiKit.Base;
   1.604 +    var ne = m.partial(m._newNamedError, this);
   1.605 +    
   1.606 +    ne("AlreadyCalledError", 
   1.607 +        /** @id MochiKit.Async.AlreadyCalledError */
   1.608 +        function (deferred) {
   1.609 +            /***
   1.610 +
   1.611 +            Raised by the Deferred if callback or errback happens
   1.612 +            after it was already fired.
   1.613 +
   1.614 +            ***/
   1.615 +            this.deferred = deferred;
   1.616 +        }
   1.617 +    );
   1.618 +
   1.619 +    ne("CancelledError",
   1.620 +        /** @id MochiKit.Async.CancelledError */
   1.621 +        function (deferred) {
   1.622 +            /***
   1.623 +
   1.624 +            Raised by the Deferred cancellation mechanism.
   1.625 +
   1.626 +            ***/
   1.627 +            this.deferred = deferred;
   1.628 +        }
   1.629 +    );
   1.630 +
   1.631 +    ne("BrowserComplianceError",
   1.632 +        /** @id MochiKit.Async.BrowserComplianceError */
   1.633 +        function (msg) {
   1.634 +            /***
   1.635 +
   1.636 +            Raised when the JavaScript runtime is not capable of performing
   1.637 +            the given function.  Technically, this should really never be
   1.638 +            raised because a non-conforming JavaScript runtime probably
   1.639 +            isn't going to support exceptions in the first place.
   1.640 +
   1.641 +            ***/
   1.642 +            this.message = msg;
   1.643 +        }
   1.644 +    );
   1.645 +
   1.646 +    ne("GenericError", 
   1.647 +        /** @id MochiKit.Async.GenericError */
   1.648 +        function (msg) {
   1.649 +            this.message = msg;
   1.650 +        }
   1.651 +    );
   1.652 +
   1.653 +    ne("XMLHttpRequestError",
   1.654 +        /** @id MochiKit.Async.XMLHttpRequestError */
   1.655 +        function (req, msg) {
   1.656 +            /***
   1.657 +
   1.658 +            Raised when an XMLHttpRequest does not complete for any reason.
   1.659 +
   1.660 +            ***/
   1.661 +            this.req = req;
   1.662 +            this.message = msg;
   1.663 +            try {
   1.664 +                // Strange but true that this can raise in some cases.
   1.665 +                this.number = req.status;
   1.666 +            } catch (e) {
   1.667 +                // pass
   1.668 +            }
   1.669 +        }
   1.670 +    );
   1.671 +
   1.672 +
   1.673 +    this.EXPORT_TAGS = {
   1.674 +        ":common": this.EXPORT,
   1.675 +        ":all": m.concat(this.EXPORT, this.EXPORT_OK)
   1.676 +    };
   1.677 +
   1.678 +    m.nameFunctions(this);
   1.679 +
   1.680 +};
   1.681 +
   1.682 +MochiKit.Async.__new__();
   1.683 +
   1.684 +MochiKit.Base._exportSymbols(this, MochiKit.Async);

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