cafe-grader-web

Location: cafe-grader-web/node_modules/core-js/modules/es7.observable.js - annotation

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Commit Description:
change logger to be limited by file size
Commit Description:
change logger to be limited by file size
References:
r839:ac14dcf5dad7 algo
File last commit:
r789:8cd7e8db7e38 default
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Action:
node_modules/core-js/modules/es7.observable.js | 199 lines | 5.4 KiB | application/javascript | JavascriptLexer |
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admin
move datatable to yarn
 r789 'use strict';
// https://github.com/zenparsing/es-observable
var $export = require('./_export');
var global = require('./_global');
var core = require('./_core');
var microtask = require('./_microtask')();
var OBSERVABLE = require('./_wks')('observable');
var aFunction = require('./_a-function');
var anObject = require('./_an-object');
var anInstance = require('./_an-instance');
var redefineAll = require('./_redefine-all');
var hide = require('./_hide');
var forOf = require('./_for-of');
var RETURN = forOf.RETURN;
var getMethod = function (fn) {
return fn == null ? undefined : aFunction(fn);
};
var cleanupSubscription = function (subscription) {
var cleanup = subscription._c;
if (cleanup) {
subscription._c = undefined;
cleanup();
}
};
var subscriptionClosed = function (subscription) {
return subscription._o === undefined;
};
var closeSubscription = function (subscription) {
if (!subscriptionClosed(subscription)) {
subscription._o = undefined;
cleanupSubscription(subscription);
}
};
var Subscription = function (observer, subscriber) {
anObject(observer);
this._c = undefined;
this._o = observer;
observer = new SubscriptionObserver(this);
try {
var cleanup = subscriber(observer);
var subscription = cleanup;
if (cleanup != null) {
if (typeof cleanup.unsubscribe === 'function') cleanup = function () { subscription.unsubscribe(); };
else aFunction(cleanup);
this._c = cleanup;
}
} catch (e) {
observer.error(e);
return;
} if (subscriptionClosed(this)) cleanupSubscription(this);
};
Subscription.prototype = redefineAll({}, {
unsubscribe: function unsubscribe() { closeSubscription(this); }
});
var SubscriptionObserver = function (subscription) {
this._s = subscription;
};
SubscriptionObserver.prototype = redefineAll({}, {
next: function next(value) {
var subscription = this._s;
if (!subscriptionClosed(subscription)) {
var observer = subscription._o;
try {
var m = getMethod(observer.next);
if (m) return m.call(observer, value);
} catch (e) {
try {
closeSubscription(subscription);
} finally {
throw e;
}
}
}
},
error: function error(value) {
var subscription = this._s;
if (subscriptionClosed(subscription)) throw value;
var observer = subscription._o;
subscription._o = undefined;
try {
var m = getMethod(observer.error);
if (!m) throw value;
value = m.call(observer, value);
} catch (e) {
try {
cleanupSubscription(subscription);
} finally {
throw e;
}
} cleanupSubscription(subscription);
return value;
},
complete: function complete(value) {
var subscription = this._s;
if (!subscriptionClosed(subscription)) {
var observer = subscription._o;
subscription._o = undefined;
try {
var m = getMethod(observer.complete);
value = m ? m.call(observer, value) : undefined;
} catch (e) {
try {
cleanupSubscription(subscription);
} finally {
throw e;
}
} cleanupSubscription(subscription);
return value;
}
}
});
var $Observable = function Observable(subscriber) {
anInstance(this, $Observable, 'Observable', '_f')._f = aFunction(subscriber);
};
redefineAll($Observable.prototype, {
subscribe: function subscribe(observer) {
return new Subscription(observer, this._f);
},
forEach: function forEach(fn) {
var that = this;
return new (core.Promise || global.Promise)(function (resolve, reject) {
aFunction(fn);
var subscription = that.subscribe({
next: function (value) {
try {
return fn(value);
} catch (e) {
reject(e);
subscription.unsubscribe();
}
},
error: reject,
complete: resolve
});
});
}
});
redefineAll($Observable, {
from: function from(x) {
var C = typeof this === 'function' ? this : $Observable;
var method = getMethod(anObject(x)[OBSERVABLE]);
if (method) {
var observable = anObject(method.call(x));
return observable.constructor === C ? observable : new C(function (observer) {
return observable.subscribe(observer);
});
}
return new C(function (observer) {
var done = false;
microtask(function () {
if (!done) {
try {
if (forOf(x, false, function (it) {
observer.next(it);
if (done) return RETURN;
}) === RETURN) return;
} catch (e) {
if (done) throw e;
observer.error(e);
return;
} observer.complete();
}
});
return function () { done = true; };
});
},
of: function of() {
for (var i = 0, l = arguments.length, items = new Array(l); i < l;) items[i] = arguments[i++];
return new (typeof this === 'function' ? this : $Observable)(function (observer) {
var done = false;
microtask(function () {
if (!done) {
for (var j = 0; j < items.length; ++j) {
observer.next(items[j]);
if (done) return;
} observer.complete();
}
});
return function () { done = true; };
});
}
});
hide($Observable.prototype, OBSERVABLE, function () { return this; });
$export($export.G, { Observable: $Observable });
require('./_set-species')('Observable');