static bool filter_var(Variant& ret, const Variant& variable, int64_t filter,
const Variant& options) {
const filter_list_entry* filter_func = php_find_filter(filter);
if (!filter_func) {
return false;
}
int64_t flags;
Variant option_array;
if (options.isArray()) {
auto arr = options.toArray();
flags = arr[s_flags].toInt64();
option_array = arr[s_options];
} else {
flags = options.toInt64();
}
FAIL_IF(variable.isObject() && !variable.getObjectData()->hasToString());
ret = filter_func->function(variable.toString(), flags, option_array);
if (option_array.isArray() && option_array.toArray().exists(s_default) &&
((flags & k_FILTER_NULL_ON_FAILURE && ret.isNull()) ||
(!(flags & k_FILTER_NULL_ON_FAILURE) && ret.isBoolean() &&
ret.asBooleanVal() == 0))) {
ret = option_array.toArray()[s_default];
}
return true;
}
Variant HHVM_FUNCTION(serialize_memoize_param, const Variant& param) {
// Memoize throws in the emitter if any function parameters are references, so
// we can just assert that the param is cell here
const auto& cell_param = *tvAssertCell(param.asTypedValue());
auto type = param.getType();
if (type == KindOfInt64) {
return param;
} else if (type == KindOfUninit || type == KindOfNull) {
return s_empty;
} else if (type == KindOfBoolean) {
return param.asBooleanVal() ? s_true : s_false;
} else if (type == KindOfString) {
auto str = param.asCStrRef();
if (str.empty()) {
return s_emptyStr;
} else if (str.charAt(0) > '9') {
// If it doesn't start with a number, then we know it can never collide
// with an int or any of our constants, so it's fine as is
return param;
}
} else if (isContainer(cell_param) && getContainerSize(cell_param) == 0) {
return s_emptyArr;
}
return fb_compact_serialize(param, FBCompactSerializeBehavior::MemoizeParam);
}