Beispiel #1
0
/* parse an expression term. It can be one of:
 * "term"
 * ["term" <parameters>]
 */
std::unique_ptr<QueryExpr> w_query_expr_parse(
    w_query* query,
    const json_ref& exp) {
  w_string name;

  if (exp.isString()) {
    name = json_to_w_string(exp);
  } else if (exp.isArray() && json_array_size(exp) > 0) {
    const auto& first = exp.at(0);

    if (!first.isString()) {
      throw QueryParseError("first element of an expression must be a string");
    }
    name = json_to_w_string(first);
  } else {
    throw QueryParseError("expected array or string for an expression");
  }

  auto it = term_hash().find(name);
  if (it == term_hash().end()) {
    throw QueryParseError(
        watchman::to<std::string>("unknown expression term '", name, "'"));
  }
  return it->second(query, exp);
}
Beispiel #2
0
static w_string parse_suffix(const json_ref& ele) {
  if (!ele.isString()) {
    throw QueryParseError("'suffix' must be a string or an array of strings");
  }

  auto str = json_to_w_string(ele);

  return str.piece().asLowerCase(str.type());
}