graphql/lib/error/index.js

A Query Language and Runtime which can target any service.

/* @flow */
/**
 *  Copyright (c) 2015, Facebook, Inc.
 *  All rights reserved.
 *
 *  This source code is licensed under the BSD-style license found in the
 *  LICENSE file in the root directory of this source tree. An additional grant
 *  of patent rights can be found in the PATENTS file in the same directory.
 */

'use strict';

var _classCallCheck = require('babel-runtime/helpers/class-call-check')['default'];

var _Object$defineProperty = require('babel-runtime/core-js/object/define-property')['default'];

var _interopRequireDefault = require('babel-runtime/helpers/interop-require-default')['default'];

_Object$defineProperty(exports, '__esModule', {
  value: true
});

exports.formatError = formatError;

var _utilsInvariant = require('../utils/invariant');

var _utilsInvariant2 = _interopRequireDefault(_utilsInvariant);

var _language = require('../language');

var GraphQLError = function GraphQLError(message,
// A flow bug keeps us from declaring nodes as an array of Node
nodes, stack) {
  _classCallCheck(this, GraphQLError);

  this.message = message;
  this.stack = stack || message;
  if (nodes) {
    this.nodes = nodes;
    var positions = nodes.map(function (node) {
      return node.loc && node.loc.start;
    });
    if (positions.some(function (p) {
      return !!p;
    })) {
      this.positions = positions;
      var loc = nodes[0].loc;
      var source = loc && loc.source;
      if (source) {
        this.locations = positions.map(function (pos) {
          return (0, _language.getLocation)(source, pos);
        });
        this.source = source;
      }
    }
  }
};

exports.GraphQLError = GraphQLError;

GraphQLError.prototype = Error.prototype;

function formatError(error) {
  (0, _utilsInvariant2['default'])(error, 'Received null or undefined error.');
  if (error.locations) {
    return {
      message: error.message || '' + error,
      locations: error.locations || null
    };
  }
  return {
    message: error.message || '' + error
  };
}

/*Node*/