@dillonkearns/elm-graphql/examples/src/subscription/node_modules/@jumpn/utils-graphql/compat/cjs/hasSubscription.js

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'use strict';

function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }

var _newArrowCheck = _interopDefault(require('babel-runtime/helpers/newArrowCheck'));

var _this = undefined;

var isSubscription = function (definition) {
  _newArrowCheck(this, _this);

  return definition.kind === "OperationDefinition" && definition.operation === "subscription";
}.bind(undefined);

/**
 * Returns true if documentNode has a subscription or false otherwise
 */


var hasSubscription = function (documentNode) {
  _newArrowCheck(this, _this);

  return documentNode.definitions.some(isSubscription);
}.bind(undefined);

module.exports = hasSubscription;