import { isSemVer } from "./is_semver.ts";import { OPERATORS } from "./_constants.ts";import type { Comparator } from "./types.ts";import { ALL, NONE } from "./constants.ts";
export function isComparator(value: unknown): value is Comparator { if ( value === null || value === undefined || Array.isArray(value) || typeof value !== "object" ) return false; if (value === NONE || value === ALL) return true; const { operator, semver } = value as Comparator; return ( (operator === undefined || OPERATORS.includes(operator)) && isSemVer(semver) );}