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Maven plugin for generating graphql clients

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/**
 * Copyright (c) 2015-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @flow strict
 */

import invariant from '../jsutils/invariant';

type Location = {
  line: number,
  column: number,
};

/**
 * A representation of source input to GraphQL.
 * `name` and `locationOffset` are optional. 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: 0 }`.
 * line and column in locationOffset are 1-indexed
 */
export class Source {
  body: string;
  name: string;
  locationOffset: Location;

  constructor(body: string, name?: string, locationOffset?: Location): void {
    this.body = body;
    this.name = name || 'GraphQL request';
    this.locationOffset = locationOffset || { line: 1, column: 1 };
    invariant(
      this.locationOffset.line > 0,
      'line in locationOffset is 1-indexed and must be positive',
    );
    invariant(
      this.locationOffset.column > 0,
      'column in locationOffset is 1-indexed and must be positive',
    );
  }
}