static void cpy_options(RE2::Options &options, JNIEnv *env, jobject j_options) {
assert(j_options != 0);
jclass j_options_cls = env->GetObjectClass(j_options);
options.set_encoding(get_re2_encoding(env, env->GetObjectField(j_options, get_field_id_safe(env, j_options_cls, "encoding", "Lcom/logentries/re2/Encoding;"))));
options.set_posix_syntax(env->GetBooleanField(j_options, get_field_id_safe(env, j_options_cls, "posixSyntax", "Z")));
options.set_longest_match(env->GetBooleanField(j_options, get_field_id_safe(env, j_options_cls, "longestMatch", "Z")));
options.set_log_errors(env->GetBooleanField(j_options, get_field_id_safe(env, j_options_cls, "logErrors", "Z")));
options.set_max_mem(safe_cast<uint64_t>(env->GetLongField(j_options, get_field_id_safe(env, j_options_cls, "maxMem", "J"))));
options.set_literal(env->GetBooleanField(j_options, get_field_id_safe(env, j_options_cls, "literal", "Z")));
options.set_never_nl(env->GetBooleanField(j_options, get_field_id_safe(env, j_options_cls, "neverNl", "Z")));
options.set_never_capture(env->GetBooleanField(j_options, get_field_id_safe(env, j_options_cls, "neverCapture", "Z")));
options.set_case_sensitive(env->GetBooleanField(j_options, get_field_id_safe(env, j_options_cls, "caseSensitive", "Z")));
options.set_perl_classes(env->GetBooleanField(j_options, get_field_id_safe(env, j_options_cls, "perlClasses", "Z")));
options.set_word_boundary(env->GetBooleanField(j_options, get_field_id_safe(env, j_options_cls, "wordBoundary", "Z")));
}
unsigned long mlre2__custom_regex_deserialize(void * dst) {
int len = caml_deserialize_sint_4();
RE2::Options options;
char * pattern = (char *) caml_stat_alloc(sizeof(*pattern) * (len));
caml_deserialize_block_1(pattern, len);
pattern[len - 1] = '\0';
options.Copy(RE2::Quiet);
options.set_max_mem(caml_deserialize_sint_8());
options_of_bitfield((uint16_t) caml_deserialize_uint_2(), options);
#ifdef DEBUG
std::cerr << "deserialized regex /" << pattern << "/" << std::endl;
#endif
*(RE2 **) dst = new RE2(pattern, options);
caml_stat_free(pattern);
return sizeof(RE2 *);
}