school/node_modules/graphql/validation/rules/LoneAnonymousOperationRule.js


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"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.LoneAnonymousOperationRule = LoneAnonymousOperationRule;

var _GraphQLError = require("../../error/GraphQLError.js");

var _kinds = require("../../language/kinds.js");

/**
 * Lone anonymous operation
 *
 * A GraphQL document is only valid if when it contains an anonymous operation
 * (the query short-hand) that it contains only that one operation definition.
 */
function LoneAnonymousOperationRule(context) {
  var operationCount = 0;
  return {
    Document: function Document(node) {
      operationCount = node.definitions.filter(function (definition) {
        return definition.kind === _kinds.Kind.OPERATION_DEFINITION;
      }).length;
    },
    OperationDefinition: function OperationDefinition(node) {
      if (!node.name && operationCount > 1) {
        context.reportError(new _GraphQLError.GraphQLError('This anonymous operation must be the only defined operation.', node));
      }
    }
  };
}