@tanstack/db/dist/cjs/query/builder/ref-proxy.cjs.map

A reactive client store for building super fast apps on sync

{"version":3,"file":"ref-proxy.cjs","sources":["../../../../src/query/builder/ref-proxy.ts"],"sourcesContent":["import { PropRef, Value } from '../ir.js'\nimport type { BasicExpression } from '../ir.js'\nimport type { RefLeaf } from './types.js'\n\nexport interface RefProxy<T = any> {\n  /** @internal */\n  readonly __refProxy: true\n  /** @internal */\n  readonly __path: Array<string>\n  /** @internal */\n  readonly __type: T\n}\n\n/**\n * Type for creating a RefProxy for a single row/type without namespacing\n * Used in collection indexes and where clauses\n */\nexport type SingleRowRefProxy<T> =\n  T extends Record<string, any>\n    ? {\n        [K in keyof T]: T[K] extends Record<string, any>\n          ? SingleRowRefProxy<T[K]> & RefProxy<T[K]>\n          : RefLeaf<T[K]>\n      } & RefProxy<T>\n    : RefProxy<T>\n\n/**\n * Creates a proxy object that records property access paths for a single row\n * Used in collection indexes and where clauses\n */\nexport function createSingleRowRefProxy<\n  T extends Record<string, any>,\n>(): SingleRowRefProxy<T> {\n  const cache = new Map<string, any>()\n\n  function createProxy(path: Array<string>): any {\n    const pathKey = path.join(`.`)\n    if (cache.has(pathKey)) {\n      return cache.get(pathKey)\n    }\n\n    const proxy = new Proxy({} as any, {\n      get(target, prop, receiver) {\n        if (prop === `__refProxy`) return true\n        if (prop === `__path`) return path\n        if (prop === `__type`) return undefined // Type is only for TypeScript inference\n        if (typeof prop === `symbol`) return Reflect.get(target, prop, receiver)\n\n        const newPath = [...path, String(prop)]\n        return createProxy(newPath)\n      },\n\n      has(target, prop) {\n        if (prop === `__refProxy` || prop === `__path` || prop === `__type`)\n          return true\n        return Reflect.has(target, prop)\n      },\n\n      ownKeys(target) {\n        return Reflect.ownKeys(target)\n      },\n\n      getOwnPropertyDescriptor(target, prop) {\n        if (prop === `__refProxy` || prop === `__path` || prop === `__type`) {\n          return { enumerable: false, configurable: true }\n        }\n        return Reflect.getOwnPropertyDescriptor(target, prop)\n      },\n    })\n\n    cache.set(pathKey, proxy)\n    return proxy\n  }\n\n  // Return the root proxy that starts with an empty path\n  return createProxy([]) as SingleRowRefProxy<T>\n}\n\n/**\n * Creates a proxy object that records property access paths\n * Used in callbacks like where, select, etc. to create type-safe references\n */\nexport function createRefProxy<T extends Record<string, any>>(\n  aliases: Array<string>,\n): RefProxy<T> & T {\n  const cache = new Map<string, any>()\n  let accessId = 0 // Monotonic counter to record evaluation order\n\n  function createProxy(path: Array<string>): any {\n    const pathKey = path.join(`.`)\n    if (cache.has(pathKey)) {\n      return cache.get(pathKey)\n    }\n\n    const proxy = new Proxy({} as any, {\n      get(target, prop, receiver) {\n        if (prop === `__refProxy`) return true\n        if (prop === `__path`) return path\n        if (prop === `__type`) return undefined // Type is only for TypeScript inference\n        if (typeof prop === `symbol`) return Reflect.get(target, prop, receiver)\n\n        const newPath = [...path, String(prop)]\n        return createProxy(newPath)\n      },\n\n      has(target, prop) {\n        if (prop === `__refProxy` || prop === `__path` || prop === `__type`)\n          return true\n        return Reflect.has(target, prop)\n      },\n\n      ownKeys(target) {\n        const id = ++accessId\n        const sentinelKey = `__SPREAD_SENTINEL__${path.join(`.`)}__${id}`\n        if (!Object.prototype.hasOwnProperty.call(target, sentinelKey)) {\n          Object.defineProperty(target, sentinelKey, {\n            enumerable: true,\n            configurable: true,\n            value: true,\n          })\n        }\n        return Reflect.ownKeys(target)\n      },\n\n      getOwnPropertyDescriptor(target, prop) {\n        if (prop === `__refProxy` || prop === `__path` || prop === `__type`) {\n          return { enumerable: false, configurable: true }\n        }\n        return Reflect.getOwnPropertyDescriptor(target, prop)\n      },\n    })\n\n    cache.set(pathKey, proxy)\n    return proxy\n  }\n\n  // Create the root proxy with all aliases as top-level properties\n  const rootProxy = new Proxy({} as any, {\n    get(target, prop, receiver) {\n      if (prop === `__refProxy`) return true\n      if (prop === `__path`) return []\n      if (prop === `__type`) return undefined // Type is only for TypeScript inference\n      if (typeof prop === `symbol`) return Reflect.get(target, prop, receiver)\n\n      const propStr = String(prop)\n      if (aliases.includes(propStr)) {\n        return createProxy([propStr])\n      }\n\n      return undefined\n    },\n\n    has(target, prop) {\n      if (prop === `__refProxy` || prop === `__path` || prop === `__type`)\n        return true\n      if (typeof prop === `string` && aliases.includes(prop)) return true\n      return Reflect.has(target, prop)\n    },\n\n    ownKeys(_target) {\n      return [...aliases, `__refProxy`, `__path`, `__type`]\n    },\n\n    getOwnPropertyDescriptor(target, prop) {\n      if (prop === `__refProxy` || prop === `__path` || prop === `__type`) {\n        return { enumerable: false, configurable: true }\n      }\n      if (typeof prop === `string` && aliases.includes(prop)) {\n        return { enumerable: true, configurable: true }\n      }\n      return undefined\n    },\n  })\n\n  return rootProxy\n}\n\n/**\n * Converts a value to an Expression\n * If it's a RefProxy, creates a Ref, otherwise creates a Value\n */\nexport function toExpression<T = any>(value: T): BasicExpression<T>\nexport function toExpression(value: RefProxy<any>): BasicExpression<any>\nexport function toExpression(value: any): BasicExpression<any> {\n  if (isRefProxy(value)) {\n    return new PropRef(value.__path)\n  }\n  // If it's already an Expression (Func, Ref, Value) or Agg, return it directly\n  if (\n    value &&\n    typeof value === `object` &&\n    `type` in value &&\n    (value.type === `func` ||\n      value.type === `ref` ||\n      value.type === `val` ||\n      value.type === `agg`)\n  ) {\n    return value\n  }\n  return new Value(value)\n}\n\n/**\n * Type guard to check if a value is a RefProxy\n */\nexport function isRefProxy(value: any): value is RefProxy {\n  return value && typeof value === `object` && value.__refProxy === true\n}\n\n/**\n * Helper to create a Value expression from a literal\n */\nexport function 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