multitude/dist/push/utils/type-guards.js

Comprehensive streams for push and pull

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isObservableConvertible = isObservableConvertible;
exports.isObservableLike = isObservableLike;
exports.isObservableCompatible = isObservableCompatible;
exports.isObservable = isObservable;
exports.isSubscriptionLike = isSubscriptionLike;
exports.isSubscription = isSubscription;

var _typeCore = require("type-core");

require("symbol-observable");

function isObservableConvertible(item) {
  return isObservableLike(item) || isObservableCompatible(item) || _typeCore.TypeGuard.isIterable(item);
}

function isObservableLike(item) {
  return _typeCore.TypeGuard.isObject(item) && _typeCore.TypeGuard.isFunction(item.subscribe);
}

function isObservableCompatible(item) {
  return _typeCore.TypeGuard.isObject(item) && _typeCore.TypeGuard.isFunction(item[Symbol.observable]);
}

function isObservable(item) {
  return _typeCore.TypeGuard.isObject(item) && _typeCore.TypeGuard.isFunction(item[Symbol.observable]) && _typeCore.TypeGuard.isFunction(item.subscribe);
}

function isSubscriptionLike(item) {
  return _typeCore.TypeGuard.isObject(item) && _typeCore.TypeGuard.isFunction(item.unsubscribe);
}

function isSubscription(item) {
  return _typeCore.TypeGuard.isObject(item) && _typeCore.TypeGuard.isBoolean(item.closed) && _typeCore.TypeGuard.isFunction(item.unsubscribe);
}
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