graphql/utilities/concatAST.mjs

import { Kind } from '../language/kinds.mjs';
/**
 * Provided a collection of ASTs, presumably each from different files,
 * concatenate the ASTs together into batched AST, useful for validating many
 * GraphQL source files which together represent one conceptual application.
 */

export function concatAST(documents) {
  const definitions = [];

  for (const doc of documents) {
    definitions.push(...doc.definitions);
  }

  return {
    kind: Kind.DOCUMENT,
    definitions,
  };
}