Function serializeExpression

packages/query-db-collection/src/serialization.ts:60–85

* Recursively serializes an IR expression for stable hashing * @internal

(expr: IR.BasicExpression | undefined)

 * @internal
 */
function serializeExpression(expr: IR.BasicExpression | undefined): unknown {
  if (!expr) {
    return null
  }

  switch (expr.type) {
    case `val`:
      return {
        type: `val`,
        value: serializeValue(expr.value),
      }
    case `ref`:
      return {
        type: `ref`,
        path: [...expr.path],
      }
    case `func`:
      return {
        type: `func`,
        name: expr.name,
        args: expr.args.map((arg) => serializeExpression(arg)),
      }
    default:
      return null
  }
}

/**
 * Serializes special JavaScript values (undefined, NaN, Infinity, Date)