bool object::instance_of(value constructor) const {
root_object cons(constructor.to_object());
if (cons.is_null())
throw exception("Could not check instance constructor: "
"constructor has to be a non-null object");
JSBool result;
if (!JS_HasInstance(
Impl::current_context(),
Impl::get_object(cons),
Impl::get_jsval(value(*this)),
&result))
throw exception("Could not check instance constructor");
return result;
}
static int get_byte(value byte_) {
int byte;
if (byte_.is_int()) {
byte = byte_.get_int();
if (byte < 0 || byte > 255)
throw exception("Byte is outside the valid range for bytes");
return byte;
}
object byte_o = byte_.to_object();
if (byte_o.is_null())
throw exception("Not a valid byte");
binary &byte_bin = flusspferd::get_native<binary>(byte_o);
if (byte_bin.get_length() != 1)
throw exception("Byte must not be a non single-element Binary");
byte = byte_bin.get_const_data()[0];
return byte;
}
std::size_t convert_container_base::from_value::length(value obj_v) {
array arr(obj_v.to_object());
return arr.length();
}
value convert_container_base::from_value::element(value obj_v, std::size_t i) {
array arr(obj_v.to_object());
return arr.get_element(i);
}
void convert_container_base::to_value::add(value obj, value el) {
obj.to_object().call("push", el);
}