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

A reactive client store for building super fast apps on sync

{"version":3,"file":"utils.cjs","sources":["../../src/utils.ts"],"sourcesContent":["/**\n * Generic utility functions\n */\n\nimport type { CompareOptions } from './query/builder/types'\n\ninterface TypedArray {\n  length: number\n  [index: number]: number\n}\n\n/**\n * Deep equality function that compares two values recursively\n * Handles primitives, objects, arrays, Date, RegExp, Map, Set, TypedArrays, and Temporal objects\n *\n * @param a - First value to compare\n * @param b - Second value to compare\n * @returns True if the values are deeply equal, false otherwise\n *\n * @example\n * ```typescript\n * deepEquals({ a: 1, b: 2 }, { b: 2, a: 1 }) // true (property order doesn't matter)\n * deepEquals([1, { x: 2 }], [1, { x: 2 }]) // true\n * deepEquals({ a: 1 }, { a: 2 }) // false\n * deepEquals(new Date('2023-01-01'), new Date('2023-01-01')) // true\n * deepEquals(new Map([['a', 1]]), new Map([['a', 1]])) // true\n * ```\n */\nexport function deepEquals(a: any, b: any): boolean 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simplified approach and may not work for all cases\n    const result = aValues.length === bValues.length\n    visited.delete(a)\n    return result\n  }\n\n  // Handle TypedArrays\n  if (\n    ArrayBuffer.isView(a) &&\n    ArrayBuffer.isView(b) &&\n    !(a instanceof DataView) &&\n    !(b instanceof DataView)\n  ) {\n    const typedA = a as unknown as TypedArray\n    const typedB = b as unknown as TypedArray\n    if (typedA.length !== typedB.length) return false\n\n    for (let i = 0; i < typedA.length; i++) {\n      if (typedA[i] !== typedB[i]) return false\n    }\n\n    return true\n  }\n\n  // Handle Temporal objects\n  // Check if both are Temporal objects of the same type\n  if (isTemporal(a) && isTemporal(b)) {\n    const aTag = getStringTag(a)\n    const bTag = getStringTag(b)\n\n    // If they're different Temporal types, they're not equal\n    if (aTag !== bTag) return false\n\n    // Use Temporal's built-in equals method if available\n    if (typeof a.equals === `function`) {\n      return a.equals(b)\n    }\n\n    // Fallback to toString comparison for other types\n    return a.toString() === b.toString()\n  }\n\n  // Handle arrays\n  if (Array.isArray(a)) {\n    if (!Array.isArray(b) || a.length !== b.length) return false\n\n    // Check for circular references\n    if (visited.has(a)) {\n      return visited.get(a) === b\n    }\n    visited.set(a, b)\n\n    const result = a.every((item, index) =>\n      deepEqualsInternal(item, b[index], visited),\n    )\n    visited.delete(a)\n    return result\n  }\n\n  // Handle objects\n  if (typeof a === `object`) {\n    // Check for circular references\n    if (visited.has(a)) {\n      return visited.get(a) === b\n    }\n    visited.set(a, b)\n\n    // Get all keys from both objects\n    const keysA = Object.keys(a)\n    const keysB = Object.keys(b)\n\n    // Check if they have the same number of keys\n    if (keysA.length !== keysB.length) {\n      visited.delete(a)\n      return false\n    }\n\n    // Check if all keys exist in both objects and their values are equal\n    const result = keysA.every(\n      (key) => key in b && deepEqualsInternal(a[key], b[key], visited),\n    )\n\n    visited.delete(a)\n    return result\n  }\n\n  // For primitives that aren't strictly equal\n  return false\n}\n\nconst temporalTypes = [\n  `Temporal.Duration`,\n  `Temporal.Instant`,\n  `Temporal.PlainDate`,\n  `Temporal.PlainDateTime`,\n  `Temporal.PlainMonthDay`,\n  `Temporal.PlainTime`,\n  `Temporal.PlainYearMonth`,\n  `Temporal.ZonedDateTime`,\n]\n\nfunction getStringTag(a: any): any {\n  return a[Symbol.toStringTag]\n}\n\n/** Checks if the value is a Temporal object by checking for the Temporal brand */\nexport function isTemporal(a: any): boolean {\n  const tag = getStringTag(a)\n  return typeof tag === `string` && temporalTypes.includes(tag)\n}\n\nexport const DEFAULT_COMPARE_OPTIONS: CompareOptions = {\n  direction: `asc`,\n  nulls: `first`,\n  stringSort: 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