392 lines
9.6 KiB
C++
392 lines
9.6 KiB
C++
#include <cubescript/cubescript.hh>
|
|
#include "cs_vm.hh"
|
|
#include "cs_util.hh"
|
|
|
|
namespace cscript {
|
|
|
|
template<typename T>
|
|
struct stor_priv_t {
|
|
cs_shared_state *state;
|
|
T val;
|
|
};
|
|
|
|
template<typename T, typename U>
|
|
static inline T &csv_get(U &stor) {
|
|
/* ugly, but internal and unlikely to cause bugs */
|
|
return const_cast<T &>(reinterpret_cast<stor_priv_t<T> const &>(stor).val);
|
|
}
|
|
|
|
template<typename T>
|
|
static inline void csv_cleanup(cs_value_type tv, T &stor) {
|
|
switch (tv) {
|
|
case cs_value_type::String:
|
|
reinterpret_cast<cs_strref *>(&stor)->~cs_strref();
|
|
break;
|
|
case cs_value_type::Code: {
|
|
uint32_t *bcode = csv_get<uint32_t *>(stor);
|
|
if (bcode[-1] == CsCodeStart) {
|
|
delete[] &bcode[-1];
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
cs_value::cs_value(cs_state &st): cs_value(*st.p_state) {}
|
|
|
|
cs_value::cs_value(cs_shared_state &st):
|
|
p_stor(), p_len(0), p_type(cs_value_type::Null)
|
|
{
|
|
reinterpret_cast<stor_priv_t<void *> *>(&p_stor)->state = &st;
|
|
}
|
|
|
|
cs_value::~cs_value() {
|
|
csv_cleanup(p_type, p_stor);
|
|
}
|
|
|
|
cs_value::cs_value(cs_value const &v): cs_value(*v.state()) {
|
|
*this = v;
|
|
}
|
|
|
|
cs_value &cs_value::operator=(cs_value const &v) {
|
|
csv_cleanup(p_type, p_stor);
|
|
p_type = cs_value_type::Null;
|
|
switch (v.get_type()) {
|
|
case cs_value_type::Int:
|
|
case cs_value_type::Float:
|
|
case cs_value_type::Ident:
|
|
p_len = v.p_len;
|
|
p_type = v.p_type;
|
|
p_stor = v.p_stor;
|
|
break;
|
|
case cs_value_type::String:
|
|
p_type = cs_value_type::String;
|
|
p_len = v.p_len;
|
|
new (&p_stor) cs_strref{
|
|
*reinterpret_cast<cs_strref const *>(&v.p_stor)
|
|
};
|
|
break;
|
|
case cs_value_type::Code:
|
|
set_code(cs_copy_code(v.get_code()));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
cs_value_type cs_value::get_type() const {
|
|
return p_type;
|
|
}
|
|
|
|
void cs_value::set_int(cs_int val) {
|
|
csv_cleanup(p_type, p_stor);
|
|
p_type = cs_value_type::Int;
|
|
csv_get<cs_int>(p_stor) = val;
|
|
}
|
|
|
|
void cs_value::set_float(cs_float val) {
|
|
csv_cleanup(p_type, p_stor);
|
|
p_type = cs_value_type::Float;
|
|
csv_get<cs_float>(p_stor) = val;
|
|
}
|
|
|
|
void cs_value::set_str(ostd::string_range val) {
|
|
csv_cleanup(p_type, p_stor);
|
|
new (&p_stor) cs_strref{*state(), val};
|
|
p_type = cs_value_type::String;
|
|
p_len = val.size();
|
|
}
|
|
|
|
void cs_value::set_null() {
|
|
csv_cleanup(p_type, p_stor);
|
|
p_type = cs_value_type::Null;
|
|
}
|
|
|
|
void cs_value::set_code(cs_bcode *val) {
|
|
csv_cleanup(p_type, p_stor);
|
|
p_type = cs_value_type::Code;
|
|
csv_get<cs_bcode *>(p_stor) = val;
|
|
}
|
|
|
|
void cs_value::set_ident(cs_ident *val) {
|
|
csv_cleanup(p_type, p_stor);
|
|
p_type = cs_value_type::Ident;
|
|
csv_get<cs_ident *>(p_stor) = val;
|
|
}
|
|
|
|
void cs_value::force_null() {
|
|
if (get_type() == cs_value_type::Null) {
|
|
return;
|
|
}
|
|
set_null();
|
|
}
|
|
|
|
cs_float cs_value::force_float() {
|
|
cs_float rf = 0.0f;
|
|
switch (get_type()) {
|
|
case cs_value_type::Int:
|
|
rf = csv_get<cs_int>(p_stor);
|
|
break;
|
|
case cs_value_type::String:
|
|
rf = cs_parse_float(ostd::string_range(
|
|
csv_get<char const *>(p_stor),
|
|
csv_get<char const *>(p_stor) + p_len
|
|
));
|
|
break;
|
|
case cs_value_type::Float:
|
|
return csv_get<cs_float>(p_stor);
|
|
default:
|
|
break;
|
|
}
|
|
set_float(rf);
|
|
return rf;
|
|
}
|
|
|
|
cs_int cs_value::force_int() {
|
|
cs_int ri = 0;
|
|
switch (get_type()) {
|
|
case cs_value_type::Float:
|
|
ri = csv_get<cs_float>(p_stor);
|
|
break;
|
|
case cs_value_type::String:
|
|
ri = cs_parse_int(ostd::string_range(
|
|
csv_get<char const *>(p_stor),
|
|
csv_get<char const *>(p_stor) + p_len
|
|
));
|
|
break;
|
|
case cs_value_type::Int:
|
|
return csv_get<cs_int>(p_stor);
|
|
default:
|
|
break;
|
|
}
|
|
set_int(ri);
|
|
return ri;
|
|
}
|
|
|
|
ostd::string_range cs_value::force_str() {
|
|
cs_string rs;
|
|
switch (get_type()) {
|
|
case cs_value_type::Float:
|
|
rs = floatstr(csv_get<cs_float>(p_stor));
|
|
break;
|
|
case cs_value_type::Int:
|
|
rs = intstr(csv_get<cs_int>(p_stor));
|
|
break;
|
|
case cs_value_type::String:
|
|
return ostd::string_range(
|
|
csv_get<char const *>(p_stor),
|
|
csv_get<char const *>(p_stor) + p_len
|
|
);
|
|
default:
|
|
break;
|
|
}
|
|
set_str(std::move(rs));
|
|
return ostd::string_range(
|
|
csv_get<char const *>(p_stor),
|
|
csv_get<char const *>(p_stor) + p_len
|
|
);
|
|
}
|
|
|
|
cs_int cs_value::get_int() const {
|
|
switch (get_type()) {
|
|
case cs_value_type::Float:
|
|
return cs_int(csv_get<cs_float>(p_stor));
|
|
case cs_value_type::Int:
|
|
return csv_get<cs_int>(p_stor);
|
|
case cs_value_type::String:
|
|
return cs_parse_int(ostd::string_range(
|
|
csv_get<char const *>(p_stor),
|
|
csv_get<char const *>(p_stor) + p_len
|
|
));
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
cs_float cs_value::get_float() const {
|
|
switch (get_type()) {
|
|
case cs_value_type::Float:
|
|
return csv_get<cs_float>(p_stor);
|
|
case cs_value_type::Int:
|
|
return cs_float(csv_get<cs_int>(p_stor));
|
|
case cs_value_type::String:
|
|
return cs_parse_float(ostd::string_range(
|
|
csv_get<char const *>(p_stor),
|
|
csv_get<char const *>(p_stor) + p_len
|
|
));
|
|
default:
|
|
break;
|
|
}
|
|
return 0.0f;
|
|
}
|
|
|
|
cs_bcode *cs_value::get_code() const {
|
|
if (get_type() != cs_value_type::Code) {
|
|
return nullptr;
|
|
}
|
|
return csv_get<cs_bcode *>(p_stor);
|
|
}
|
|
|
|
cs_ident *cs_value::get_ident() const {
|
|
if (get_type() != cs_value_type::Ident) {
|
|
return nullptr;
|
|
}
|
|
return csv_get<cs_ident *>(p_stor);
|
|
}
|
|
|
|
cs_string cs_value::get_str() const {
|
|
switch (get_type()) {
|
|
case cs_value_type::String:
|
|
return cs_string{csv_get<char const *>(p_stor), p_len};
|
|
case cs_value_type::Int:
|
|
return intstr(csv_get<cs_int>(p_stor));
|
|
case cs_value_type::Float:
|
|
return floatstr(csv_get<cs_float>(p_stor));
|
|
default:
|
|
break;
|
|
}
|
|
return cs_string("");
|
|
}
|
|
|
|
ostd::string_range cs_value::get_strr() const {
|
|
switch (get_type()) {
|
|
case cs_value_type::String:
|
|
return ostd::string_range(
|
|
csv_get<char const *>(p_stor),
|
|
csv_get<char const *>(p_stor)+ p_len
|
|
);
|
|
default:
|
|
break;
|
|
}
|
|
return ostd::string_range();
|
|
}
|
|
|
|
void cs_value::get_val(cs_value &r) const {
|
|
switch (get_type()) {
|
|
case cs_value_type::String:
|
|
r = *this;
|
|
break;
|
|
case cs_value_type::Int:
|
|
r.set_int(csv_get<cs_int>(p_stor));
|
|
break;
|
|
case cs_value_type::Float:
|
|
r.set_float(csv_get<cs_float>(p_stor));
|
|
break;
|
|
default:
|
|
r.set_null();
|
|
break;
|
|
}
|
|
}
|
|
|
|
OSTD_EXPORT bool cs_code_is_empty(cs_bcode *code) {
|
|
if (!code) {
|
|
return true;
|
|
}
|
|
return (
|
|
*reinterpret_cast<uint32_t *>(code) & CsCodeOpMask
|
|
) == CsCodeExit;
|
|
}
|
|
|
|
bool cs_value::code_is_empty() const {
|
|
if (get_type() != cs_value_type::Code) {
|
|
return true;
|
|
}
|
|
return cscript::cs_code_is_empty(csv_get<cs_bcode *>(p_stor));
|
|
}
|
|
|
|
static inline bool cs_get_bool(ostd::string_range s) {
|
|
if (s.empty()) {
|
|
return false;
|
|
}
|
|
ostd::string_range end = s;
|
|
cs_int ival = cs_parse_int(end, &end);
|
|
if (end.empty()) {
|
|
return !!ival;
|
|
}
|
|
end = s;
|
|
cs_float fval = cs_parse_float(end, &end);
|
|
if (end.empty()) {
|
|
return !!fval;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool cs_value::get_bool() const {
|
|
switch (get_type()) {
|
|
case cs_value_type::Float:
|
|
return csv_get<cs_float>(p_stor) != 0;
|
|
case cs_value_type::Int:
|
|
return csv_get<cs_int>(p_stor) != 0;
|
|
case cs_value_type::String:
|
|
return cs_get_bool(ostd::string_range(
|
|
csv_get<char const *>(p_stor),
|
|
csv_get<char const *>(p_stor) + p_len
|
|
));
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* stacked value for easy stack management */
|
|
|
|
cs_stacked_value::cs_stacked_value(cs_state &cs, cs_ident *id):
|
|
cs_value(cs), p_a(nullptr), p_stack{cs}, p_pushed(false)
|
|
{
|
|
set_alias(id);
|
|
}
|
|
|
|
cs_stacked_value::~cs_stacked_value() {
|
|
pop();
|
|
static_cast<cs_value *>(this)->~cs_value();
|
|
}
|
|
|
|
cs_stacked_value &cs_stacked_value::operator=(cs_value const &v) {
|
|
*static_cast<cs_value *>(this) = v;
|
|
return *this;
|
|
}
|
|
|
|
cs_stacked_value &cs_stacked_value::operator=(cs_value &&v) {
|
|
*static_cast<cs_value *>(this) = std::move(v);
|
|
return *this;
|
|
}
|
|
|
|
bool cs_stacked_value::set_alias(cs_ident *id) {
|
|
if (!id || !id->is_alias()) {
|
|
return false;
|
|
}
|
|
p_a = static_cast<cs_alias *>(id);
|
|
return true;
|
|
}
|
|
|
|
cs_alias *cs_stacked_value::get_alias() const {
|
|
return p_a;
|
|
}
|
|
|
|
bool cs_stacked_value::has_alias() const {
|
|
return p_a != nullptr;
|
|
}
|
|
|
|
bool cs_stacked_value::push() {
|
|
if (!p_a) {
|
|
return false;
|
|
}
|
|
cs_alias_internal::push_arg(p_a, *this, p_stack);
|
|
p_pushed = true;
|
|
return true;
|
|
}
|
|
|
|
bool cs_stacked_value::pop() {
|
|
if (!p_pushed || !p_a) {
|
|
return false;
|
|
}
|
|
cs_alias_internal::pop_arg(p_a);
|
|
p_pushed = false;
|
|
return true;
|
|
}
|
|
|
|
} /* namespace cscript */
|