@tanstack/db/dist/esm/query/runtime-reference-identity.js

A reactive client store for building super fast apps on sync

function createRuntimeReferenceIdentityFactory() {
  const referenceIds = /* @__PURE__ */ new WeakMap();
  let localSymbolIds;
  let registeredSymbolIds;
  let namespace;
  let sequence = 0;
  const getReferenceId = (ids, key) => {
    let referenceId = ids.get(key);
    if (referenceId === void 0) {
      referenceId = ++sequence;
      ids.set(key, referenceId);
    }
    return referenceId;
  };
  return (value) => {
    namespace ??= createRuntimeReferenceNamespace();
    let referenceId;
    if (typeof value === `symbol`) {
      const registeredKey = Symbol.keyFor(value);
      if (registeredKey === void 0) {
        localSymbolIds ??= createLocalSymbolIdStore();
        referenceId = getReferenceId(localSymbolIds, value);
      } else {
        registeredSymbolIds ??= /* @__PURE__ */ new Map();
        referenceId = getReferenceId(registeredSymbolIds, registeredKey);
      }
    } else {
      referenceId = getReferenceId(referenceIds, value);
    }
    return [`runtimeReference`, namespace, referenceId];
  };
}
function createLocalSymbolIdStore() {
  const weakIds = /* @__PURE__ */ new WeakMap();
  const probe = /* @__PURE__ */ Symbol();
  try {
    weakIds.set(probe, 0);
    if (weakIds.get(probe) === 0) return weakIds;
  } catch {
  }
  return /* @__PURE__ */ new Map();
}
let runtimeReferenceIdentityFactory;
function getRuntimeReferenceIdentity(value) {
  runtimeReferenceIdentityFactory ??= createRuntimeReferenceIdentityFactory();
  return runtimeReferenceIdentityFactory(value);
}
function createRuntimeReferenceNamespace() {
  const randomValues = new Uint32Array(4);
  const runtimeCrypto = Reflect.get(globalThis, `crypto`);
  if (typeof runtimeCrypto?.getRandomValues === `function`) {
    runtimeCrypto.getRandomValues(randomValues);
    return Array.from(randomValues, (value) => value.toString(36)).join(`-`);
  }
  return `${Date.now().toString(36)}-${Math.random().toString(36).slice(2)}-${Math.random().toString(36).slice(2)}`;
}
export {
  createRuntimeReferenceIdentityFactory,
  getRuntimeReferenceIdentity
};
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