function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

import { SYMBOL_TO_STRING_TAG } from "../polyfills/symbols.mjs";
import inspect from "../jsutils/inspect.mjs";
import devAssert from "../jsutils/devAssert.mjs";
import instanceOf from "../jsutils/instanceOf.mjs";

/**
 * A representation of source input to GraphQL. The `name` and `locationOffset` parameters are
 * optional, but they are useful for clients who store GraphQL documents in source files.
 * For example, if the GraphQL input starts at line 40 in a file named `Foo.graphql`, it might
 * be useful for `name` to be `"Foo.graphql"` and location to be `{ line: 40, column: 1 }`.
 * The `line` and `column` properties in `locationOffset` are 1-indexed.
 */
export var Source = /*#__PURE__*/function () {
  function Source(body) {
    var name = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'GraphQL request';
    var locationOffset = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {
      line: 1,
      column: 1
    };
    typeof body === 'string' || devAssert(0, "Body must be a string. Received: ".concat(inspect(body), "."));
    this.body = body;
    this.name = name;
    this.locationOffset = locationOffset;
    this.locationOffset.line > 0 || devAssert(0, 'line in locationOffset is 1-indexed and must be positive.');
    this.locationOffset.column > 0 || devAssert(0, 'column in locationOffset is 1-indexed and must be positive.');
  } // $FlowFixMe[unsupported-syntax] Flow doesn't support computed properties yet


  _createClass(Source, [{
    key: SYMBOL_TO_STRING_TAG,
    get: function get() {
      return 'Source';
    }
  }]);

  return Source;
}();
/**
 * Test if the given value is a Source object.
 *
 * @internal
 */

// eslint-disable-next-line no-redeclare
export function isSource(source) {
  return instanceOf(source, Source);
}