@tanstack/db/dist/cjs/utils/comparison.cjs.map

A reactive client store for building super fast apps on sync

{"version":3,"file":"comparison.cjs","sources":["../../../src/utils/comparison.ts"],"sourcesContent":["// WeakMap to store stable IDs for objects\nconst objectIds = new WeakMap<object, number>()\nlet nextObjectId = 1\n\n/**\n * Get or create a stable ID for an object\n */\nfunction getObjectId(obj: object): number {\n  if (objectIds.has(obj)) {\n    return objectIds.get(obj)!\n  }\n  const id = nextObjectId++\n  objectIds.set(obj, id)\n  return id\n}\n\n/**\n * Universal comparison function for all data types\n * Handles null/undefined, strings, arrays, dates, objects, and primitives\n * Always sorts null/undefined values first\n */\nexport const ascComparator = (a: any, b: any): number => {\n  // Handle null/undefined\n  if (a == null && b == null) return 0\n  if (a == null) return -1\n  if (b == null) return 1\n\n  // if a and b are both strings, compare them based on locale\n  if (typeof a === `string` && typeof b === `string`) {\n    return a.localeCompare(b)\n  }\n\n  // if a and b are both arrays, compare them element by element\n  if (Array.isArray(a) && Array.isArray(b)) {\n    for (let i = 0; i < Math.min(a.length, b.length); i++) {\n      const result = ascComparator(a[i], b[i])\n      if (result !== 0) {\n        return result\n      }\n    }\n    // All elements are equal up to the minimum length\n    return a.length - b.length\n  }\n\n  // If both are dates, compare them\n  if (a instanceof Date && b instanceof Date) {\n    return a.getTime() - b.getTime()\n  }\n\n  // If at least one of the values is an object, use stable IDs for comparison\n  const aIsObject = typeof a === `object`\n  const bIsObject = typeof b === `object`\n\n  if (aIsObject || bIsObject) {\n    // If both are objects, compare their stable IDs\n    if (aIsObject && bIsObject) {\n      const aId = getObjectId(a)\n      const bId = getObjectId(b)\n      return aId - bId\n    }\n\n    // If only one is an object, objects come after primitives\n    if (aIsObject) return 1\n    if (bIsObject) return -1\n  }\n\n  // For primitive values, use direct comparison\n  if (a < b) return -1\n  if (a > b) return 1\n  return 0\n}\n\n/**\n * Descending comparator function for ordering values\n * Handles null/undefined as largest values (opposite of ascending)\n */\nexport const descComparator = (a: unknown, b: unknown): number => {\n  return ascComparator(b, a)\n}\n"],"names":[],"mappings":";;AACA,MAAM,gCAAgB,QAAA;AACtB,IAAI,eAAe;AAKnB,SAAS,YAAY,KAAqB;AACxC,MAAI,UAAU,IAAI,GAAG,GAAG;AACtB,WAAO,UAAU,IAAI,GAAG;AAAA,EAC1B;AACA,QAAM,KAAK;AACX,YAAU,IAAI,KAAK,EAAE;AACrB,SAAO;AACT;AAOO,MAAM,gBAAgB,CAAC,GAAQ,MAAmB;AAEvD,MAAI,KAAK,QAAQ,KAAK,KAAM,QAAO;AACnC,MAAI,KAAK,KAAM,QAAO;AACtB,MAAI,KAAK,KAAM,QAAO;AAGtB,MAAI,OAAO,MAAM,YAAY,OAAO,MAAM,UAAU;AAClD,WAAO,EAAE,cAAc,CAAC;AAAA,EAC1B;AAGA,MAAI,MAAM,QAAQ,CAAC,KAAK,MAAM,QAAQ,CAAC,GAAG;AACxC,aAAS,IAAI,GAAG,IAAI,KAAK,IAAI,EAAE,QAAQ,EAAE,MAAM,GAAG,KAAK;AACrD,YAAM,SAAS,cAAc,EAAE,CAAC,GAAG,EAAE,CAAC,CAAC;AACvC,UAAI,WAAW,GAAG;AAChB,eAAO;AAAA,MACT;AAAA,IACF;AAEA,WAAO,EAAE,SAAS,EAAE;AAAA,EACtB;AAGA,MAAI,aAAa,QAAQ,aAAa,MAAM;AAC1C,WAAO,EAAE,YAAY,EAAE,QAAA;AAAA,EACzB;AAGA,QAAM,YAAY,OAAO,MAAM;AAC/B,QAAM,YAAY,OAAO,MAAM;AAE/B,MAAI,aAAa,WAAW;AAE1B,QAAI,aAAa,WAAW;AAC1B,YAAM,MAAM,YAAY,CAAC;AACzB,YAAM,MAAM,YAAY,CAAC;AACzB,aAAO,MAAM;AAAA,IACf;AAGA,QAAI,UAAW,QAAO;AACtB,QAAI,UAAW,QAAO;AAAA,EACxB;AAGA,MAAI,IAAI,EAAG,QAAO;AAClB,MAAI,IAAI,EAAG,QAAO;AAClB,SAAO;AACT;AAMO,MAAM,iBAAiB,CAAC,GAAY,MAAuB;AAChE,SAAO,cAAc,GAAG,CAAC;AAC3B;;;"}