@platformos/pos-cli/gui/graphql/node_modules/graphiql/esm/utility/mergeAst.js

Manage your platformOS application

/**
 *  Copyright (c) 2019 GraphQL Contributors.
 *
 *  This source code is licensed under the MIT license found in the
 *  LICENSE file in the root directory of this source tree.
 */
import { Kind } from 'graphql/language/kinds';

function resolveDefinition(fragments, obj) {
  let definition = obj;

  if (definition.kind === Kind.FRAGMENT_SPREAD) {
    definition = fragments[definition.name.value];
  }

  if (definition.selectionSet) {
    definition.selectionSet.selections = definition.selectionSet.selections.filter((selection, idx, self) => selection.kind !== Kind.FRAGMENT_SPREAD || idx === self.findIndex(_selection => _selection.kind === Kind.FRAGMENT_SPREAD && selection.name.value === _selection.name.value)).map(selection => resolveDefinition(fragments, selection));
  }

  return definition;
}

export function mergeAst(queryAst) {
  const fragments = {};
  queryAst.definitions.filter(elem => {
    return elem.kind === Kind.FRAGMENT_DEFINITION;
  }).forEach(frag => {
    const copyFragment = { ...frag
    };
    copyFragment.kind = Kind.INLINE_FRAGMENT;
    fragments[frag.name.value] = copyFragment;
  });
  const copyAst = { ...queryAst
  };
  copyAst.definitions = queryAst.definitions.filter(elem => {
    return elem.kind !== Kind.FRAGMENT_DEFINITION;
  }).map(op => resolveDefinition(fragments, op));
  return copyAst;
}