Function defaultFieldResolver

packages/executor/src/execution/execute.ts:1559–1573

(
  source: any,
  args,
  contextValue,
  info,
)

 * of calling that function while passing along args and context value.
 */
export const defaultFieldResolver: GraphQLFieldResolver<unknown, unknown> = function (
  source: any,
  args,
  contextValue,
  info,
) {
  // ensure source is a value for which property access is acceptable.
  if (isObjectLike(source) || typeof source === 'function') {
    const property = source[info.fieldName];
    if (typeof property === 'function') {
      return source[info.fieldName](args, contextValue, info);
    }
    return property;
  }
};

/**
 * Implements the "Subscribe" algorithm described in the GraphQL specification,