@tanstack/db/dist/esm/query/equality-conjunct.js

A reactive client store for building super fast apps on sync

import { normalizeValue } from "../utils/comparison.js";
import { isVirtualPropName } from "../virtual-props.js";
function equalityKey(value) {
  const normalized = normalizeValue(value);
  const type = typeof normalized;
  return type === `string` || type === `number` || type === `boolean` ? `${type}:${String(normalized)}` : void 0;
}
function readPath(row, path) {
  try {
    let value = row;
    for (const segment of path) value = value?.[segment];
    return value;
  } catch {
    return void 0;
  }
}
function equalityConjunct(expression, rowPath) {
  if (expression.type !== `func` || expression.name !== `eq`) return void 0;
  const args = expression.args;
  if (args.length !== 2) return void 0;
  const left = args[0];
  const right = args[1];
  const ref = left.type === `ref` ? left : right;
  const literal = left.type === `val` ? left : right;
  if (ref.type !== `ref` || literal.type !== `val`) return void 0;
  const path = rowPath(ref);
  if (!path?.length || isVirtualPropName(path[0])) return void 0;
  const literalKey = equalityKey(literal.value);
  return literalKey === void 0 ? void 0 : { path, literalKey };
}
export {
  equalityConjunct,
  equalityKey,
  readPath
};
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