Function list

packages/graphql-language-service/src/parser/RuleHelpers.ts:20–22

(ofRule: Rule | string, separator?: string | Rule)

// A list of another rule.
export function list(ofRule: Rule | string, separator?: string | Rule): Rule {
  return { ofRule, isList: true, separator };
}

// A constraint described as `but not` in the GraphQL spec.
export function butNot(rule: Rule, exclusions: Array<Rule>) {