text: "use strict";
  Object.defineProperty(exports, "__esModule", { value: true });
  var tslib_1 = require("tslib");
  var zen_observable_ts_1 = tslib_1.__importDefault(require("zen-observable-ts"));
  var apollo_utilities_1 = require("apollo-utilities");
  exports.getOperationName = apollo_utilities_1.getOperationName;
  var ts_invariant_1 = require("ts-invariant");
  function validateOperation(operation) {
      var OPERATION_FIELDS = [
          'query',
          'operationName',
          'variables',
          'extensions',
          'context',
      ];
      for (var _i = 0, _a = Object.keys(operation); _i < _a.length; _i++) {
          var key = _a[_i];
          if (OPERATION_FIELDS.indexOf(key) < 0) {
              throw new ts_invariant_1.InvariantError("illegal argument: " + key);
          }
      }
      return operation;
  }
  exports.validateOperation = validateOperation;
  var LinkError = (function (_super) {
      tslib_1.__extends(LinkError, _super);
      function LinkError(message, link) {
          var _this = _super.call(this, message) || this;
          _this.link = link;
          return _this;
      }
      return LinkError;
  }(Error));
  exports.LinkError = LinkError;
  function isTerminating(link) {
      return link.request.length <= 1;
  }
  exports.isTerminating = isTerminating;
  function toPromise(observable) {
      var completed = false;
      return new Promise(function (resolve, reject) {
          observable.subscribe({
              next: function (data) {
                  if (completed) {
                      ts_invariant_1.invariant.warn("Promise Wrapper does not support multiple results from Observable");
                  }
                  else {
                      completed = true;
                      resolve(data);
                  }
              },
              error: reject,
          });
      });
  }
  exports.toPromise = toPromise;
  exports.makePromise = toPromise;
  function fromPromise(promise) {
      return new zen_observable_ts_1.default(function (observer) {
          promise
              .then(function (value) {
              observer.next(value);
              observer.complete();
          })
              .catch(observer.error.bind(observer));
      });
  }
  exports.fromPromise = fromPromise;
  function fromError(errorValue) {
      return new zen_observable_ts_1.default(function (observer) {
          observer.error(errorValue);
      });
  }
  exports.fromError = fromError;
  function transformOperation(operation) {
      var transformedOperation = {
          variables: operation.variables || {},
          extensions: operation.extensions || {},
          operationName: operation.operationName,
          query: operation.query,
      };
      if (!transformedOperation.operationName) {
          transformedOperation.operationName =
              typeof transformedOperation.query !== 'string'
                  ? apollo_utilities_1.getOperationName(transformedOperation.query)
                  : '';
      }
      return transformedOperation;
  }
  exports.transformOperation = transformOperation;
  function createOperation(starting, operation) {
      var context = tslib_1.__assign({}, starting);
      var setContext = function (next) {
          if (typeof next === 'function') {
              context = tslib_1.__assign({}, context, next(context));
          }
          else {
              context = tslib_1.__assign({}, context, next);
          }
      };
      var getContext = function () { return (tslib_1.__assign({}, context)); };
      Object.defineProperty(operation, 'setContext', {
          enumerable: false,
          value: setContext,
      });
      Object.defineProperty(operation, 'getContext', {
          enumerable: false,
          value: getContext,
      });
      Object.defineProperty(operation, 'toKey', {
          enumerable: false,
          value: function () { return getKey(operation); },
      });
      return operation;
  }
  exports.createOperation = createOperation;
  function getKey(operation) {
      var query = operation.query, variables = operation.variables, operationName = operation.operationName;
      return JSON.stringify([operationName, query, variables]);
  }
  exports.getKey = getKey;
  //# sourceMappingURL=linkUtils.js.map