1352 lines
37 KiB
C++
1352 lines
37 KiB
C++
#include "cubescript/cubescript.hh"
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#include "cs_vm.hh"
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namespace cscript {
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cs_string intstr(cs_int v) {
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auto app = ostd::appender_range<cs_string>{};
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cscript::util::format_int(app, v);
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return std::move(app.get());
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}
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cs_string floatstr(cs_float v) {
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auto app = ostd::appender_range<cs_string>{};
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cscript::util::format_float(app, v);
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return std::move(app.get());
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}
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bool cs_check_num(ostd::string_range s) {
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if (isdigit(s[0])) {
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return true;
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}
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switch (s[0]) {
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case '+':
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case '-':
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return isdigit(s[1]) || ((s[1] == '.') && isdigit(s[2]));
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case '.':
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return isdigit(s[1]) != 0;
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default:
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return false;
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}
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}
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cs_ident::cs_ident(cs_ident_type tp, ostd::string_range nm, int fl):
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p_name(nm), p_type(int(tp)), p_flags(fl)
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{}
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cs_var::cs_var(cs_ident_type tp, ostd::string_range name, cs_var_cb f, int fl):
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cs_ident(tp, name, fl), cb_var(std::move(f))
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{}
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cs_ivar::cs_ivar(
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ostd::string_range name, cs_int m, cs_int x, cs_int v, cs_var_cb f, int fl
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):
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cs_var(cs_ident_type::Ivar, name, std::move(f), fl | ((m > x) ? CS_IDF_READONLY : 0)),
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p_storage(v), p_minval(m), p_maxval(x), p_overrideval(0)
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{}
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cs_fvar::cs_fvar(
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ostd::string_range name, cs_float m, cs_float x, cs_float v, cs_var_cb f, int fl
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):
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cs_var(cs_ident_type::Fvar, name, std::move(f), fl | ((m > x) ? CS_IDF_READONLY : 0)),
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p_storage(v), p_minval(m), p_maxval(x), p_overrideval(0)
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{}
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cs_svar::cs_svar(ostd::string_range name, cs_string v, cs_var_cb f, int fl):
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cs_var(cs_ident_type::Svar, name, std::move(f), fl),
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p_storage(std::move(v)), p_overrideval()
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{}
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cs_alias::cs_alias(ostd::string_range name, cs_string a, int fl):
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cs_ident(cs_ident_type::Alias, name, fl),
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p_acode(nullptr), p_astack(nullptr)
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{
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p_val.set_str(std::move(a));
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}
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cs_alias::cs_alias(ostd::string_range name, cs_int a, int fl):
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cs_ident(cs_ident_type::Alias, name, fl),
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p_acode(nullptr), p_astack(nullptr)
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{
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p_val.set_int(a);
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}
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cs_alias::cs_alias(ostd::string_range name, cs_float a, int fl):
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cs_ident(cs_ident_type::Alias, name, fl),
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p_acode(nullptr), p_astack(nullptr)
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{
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p_val.set_float(a);
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}
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cs_alias::cs_alias(ostd::string_range name, int fl):
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cs_ident(cs_ident_type::Alias, name, fl),
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p_acode(nullptr), p_astack(nullptr)
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{
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p_val.set_null();
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}
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cs_alias::cs_alias(ostd::string_range name, cs_value v, int fl):
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cs_ident(cs_ident_type::Alias, name, fl),
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p_acode(nullptr), p_astack(nullptr), p_val(std::move(v))
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{}
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cs_command::cs_command(
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ostd::string_range name, ostd::string_range args,
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int nargs, cs_command_cb f
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):
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cs_ident(cs_ident_type::Command, name, 0),
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p_cargs(args), p_cb_cftv(std::move(f)), p_numargs(nargs)
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{}
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bool cs_ident::is_alias() const {
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return get_type() == cs_ident_type::Alias;
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}
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cs_alias *cs_ident::get_alias() {
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if (!is_alias()) {
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return nullptr;
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}
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return static_cast<cs_alias *>(this);
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}
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cs_alias const *cs_ident::get_alias() const {
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if (!is_alias()) {
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return nullptr;
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}
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return static_cast<cs_alias const *>(this);
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}
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bool cs_ident::is_command() const {
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return get_type() == cs_ident_type::Command;
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}
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cs_command *cs_ident::get_command() {
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if (!is_command()) {
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return nullptr;
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}
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return static_cast<cs_command *>(this);
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}
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cs_command const *cs_ident::get_command() const {
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if (!is_command()) {
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return nullptr;
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}
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return static_cast<cs_command const *>(this);
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}
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bool cs_ident::is_special() const {
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return get_type() == cs_ident_type::Special;
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}
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bool cs_ident::is_var() const {
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cs_ident_type tp = get_type();
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return (tp >= cs_ident_type::Ivar) && (tp <= cs_ident_type::Svar);
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}
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cs_var *cs_ident::get_var() {
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if (!is_var()) {
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return nullptr;
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}
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return static_cast<cs_var *>(this);
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}
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cs_var const *cs_ident::get_var() const {
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if (!is_var()) {
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return nullptr;
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}
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return static_cast<cs_var const *>(this);
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}
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bool cs_ident::is_ivar() const {
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return get_type() == cs_ident_type::Ivar;
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}
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cs_ivar *cs_ident::get_ivar() {
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if (!is_ivar()) {
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return nullptr;
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}
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return static_cast<cs_ivar *>(this);
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}
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cs_ivar const *cs_ident::get_ivar() const {
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if (!is_ivar()) {
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return nullptr;
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}
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return static_cast<cs_ivar const *>(this);
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}
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bool cs_ident::is_fvar() const {
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return get_type() == cs_ident_type::Fvar;
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}
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cs_fvar *cs_ident::get_fvar() {
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if (!is_fvar()) {
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return nullptr;
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}
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return static_cast<cs_fvar *>(this);
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}
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cs_fvar const *cs_ident::get_fvar() const {
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if (!is_fvar()) {
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return nullptr;
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}
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return static_cast<cs_fvar const *>(this);
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}
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bool cs_ident::is_svar() const {
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return get_type() == cs_ident_type::Svar;
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}
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cs_svar *cs_ident::get_svar() {
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if (!is_svar()) {
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return nullptr;
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}
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return static_cast<cs_svar *>(this);
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}
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cs_svar const *cs_ident::get_svar() const {
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if (!is_svar()) {
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return nullptr;
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}
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return static_cast<cs_svar const *>(this);
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}
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cs_int cs_ivar::get_val_min() const {
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return p_minval;
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}
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cs_int cs_ivar::get_val_max() const {
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return p_maxval;
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}
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cs_int cs_ivar::get_value() const {
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return p_storage;
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}
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void cs_ivar::set_value(cs_int val) {
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p_storage = val;
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}
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cs_string cs_ivar::to_printable() const {
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cs_int i = p_storage;
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auto app = ostd::appender_range<cs_string>{};
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try {
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if (!(get_flags() & CS_IDF_HEX) || (i < 0)) {
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format(app, IvarFormat, get_name(), i);
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} else if (p_maxval == 0xFFFFFF) {
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format(
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app, IvarHexColorFormat, get_name(),
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i, (i >> 16) & 0xFF, (i >> 8) & 0xFF, i & 0xFF
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);
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} else {
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format(app, IvarHexFormat, get_name(), i);
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}
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} catch (ostd::format_error const &e) {
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throw cs_internal_error{e.what()};
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}
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return std::move(app.get());
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}
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cs_float cs_fvar::get_val_min() const {
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return p_minval;
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}
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cs_float cs_fvar::get_val_max() const {
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return p_maxval;
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}
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cs_float cs_fvar::get_value() const {
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return p_storage;
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}
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void cs_fvar::set_value(cs_float val) {
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p_storage = val;
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}
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cs_string cs_fvar::to_printable() const {
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cs_float f = p_storage;
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auto app = ostd::appender_range<cs_string>{};
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try {
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format(
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app, (f == cs_int(f)) ? FvarRoundFormat : FvarFormat, get_name(), f
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);
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} catch (ostd::format_error const &e) {
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throw cs_internal_error{e.what()};
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}
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return std::move(app.get());
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}
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ostd::string_range cs_svar::get_value() const {
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return ostd::iter(p_storage);
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}
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void cs_svar::set_value(cs_string val) {
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p_storage = std::move(val);
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}
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cs_string cs_svar::to_printable() const {
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ostd::string_range s = p_storage;
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auto app = ostd::appender_range<cs_string>{};
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try {
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if (ostd::find(s, '"').empty()) {
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format(app, SvarFormat, get_name(), s);
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} else {
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format(app, SvarQuotedFormat, get_name(), s);
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}
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} catch (ostd::format_error const &e) {
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throw cs_internal_error{e.what()};
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}
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return std::move(app.get());
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}
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ostd::string_range cs_command::get_args() const {
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return p_cargs;
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}
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int cs_command::get_num_args() const {
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return p_numargs;
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}
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void cs_init_lib_base(cs_state &cs);
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cs_state::cs_state(cs_alloc_cb func, void *data):
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p_state(nullptr), p_callhook()
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{
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if (!func) {
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func = cs_default_alloc;
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}
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/* allocator is not set up yet, use func directly */
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p_state = static_cast<cs_shared_state *>(
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func(data, nullptr, 0, sizeof(cs_shared_state))
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);
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new (p_state) cs_shared_state();
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/* set up allocator, from now we can call into alloc() */
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p_state->allocf = func;
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p_state->aptr = data;
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for (int i = 0; i < MaxArguments; ++i) {
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char buf[32];
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snprintf(buf, sizeof(buf), "arg%d", i + 1);
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new_ident(static_cast<char const *>(buf), CS_IDF_ARG);
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}
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cs_ident *id = new_ident("//dummy");
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if (id->get_index() != DummyIdx) {
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throw cs_internal_error{"invalid dummy index"};
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}
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id = new_ivar("numargs", MaxArguments, 0, 0);
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if (id->get_index() != NumargsIdx) {
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throw cs_internal_error{"invalid numargs index"};
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}
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id = new_ivar("dbgalias", 0, 1000, 4);
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if (id->get_index() != DbgaliasIdx) {
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throw cs_internal_error{"invalid dbgalias index"};
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}
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new_command("do", "e", [](auto &cs, auto args, auto &res) {
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cs.run(args[0].get_code(), res);
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})->p_type = CsIdDo;
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new_command("doargs", "e", [](auto &cs, auto args, auto &res) {
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cs_do_args(cs, [&cs, &res, &args]() {
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cs.run(args[0].get_code(), res);
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});
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})->p_type = CsIdDoArgs;
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new_command("if", "tee", [](auto &cs, auto args, auto &res) {
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cs.run((args[0].get_bool() ? args[1] : args[2]).get_code(), res);
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})->p_type = CsIdIf;
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new_command("result", "T", [](auto &, auto args, auto &res) {
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res = std::move(args[0]);
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})->p_type = CsIdResult;
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new_command("!", "t", [](auto &, auto args, auto &res) {
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res.set_int(!args[0].get_bool());
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})->p_type = CsIdNot;
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new_command("&&", "E1V", [](auto &cs, auto args, auto &res) {
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if (args.empty()) {
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res.set_int(1);
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} else {
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for (size_t i = 0; i < args.size(); ++i) {
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cs_bcode *code = args[i].get_code();
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if (code) {
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cs.run(code, res);
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} else {
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res = std::move(args[i]);
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}
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if (!res.get_bool()) {
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break;
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}
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}
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}
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})->p_type = CsIdAnd;
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new_command("||", "E1V", [](auto &cs, auto args, auto &res) {
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if (args.empty()) {
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res.set_int(0);
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} else {
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for (size_t i = 0; i < args.size(); ++i) {
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cs_bcode *code = args[i].get_code();
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if (code) {
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cs.run(code, res);
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} else {
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res = std::move(args[i]);
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}
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if (res.get_bool()) {
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break;
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}
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}
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}
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})->p_type = CsIdOr;
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new_command("local", nullptr, nullptr)->p_type = CsIdLocal;
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new_command("break", "", [](auto &cs, auto, auto &) {
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if (cs.is_in_loop()) {
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throw CsBreakException();
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} else {
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throw cs_error(cs, "no loop to break");
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}
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})->p_type = CsIdBreak;
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new_command("continue", "", [](auto &cs, auto, auto &) {
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if (cs.is_in_loop()) {
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throw CsContinueException();
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} else {
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throw cs_error(cs, "no loop to continue");
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}
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})->p_type = CsIdContinue;
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cs_init_lib_base(*this);
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}
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cs_state::~cs_state() {
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if (!p_state) {
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return;
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}
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for (auto &p: p_state->idents) {
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cs_ident *i = p.second;
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cs_alias *a = i->get_alias();
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if (a) {
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a->get_value().force_null();
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cs_aliasInternal::clean_code(a);
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}
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p_state->destroy(i);
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}
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p_state->destroy(p_state);
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}
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cs_hook_cb cs_state::set_call_hook(cs_hook_cb func) {
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auto hk = std::move(p_callhook);
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p_callhook = std::move(func);
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return hk;
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}
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cs_hook_cb const &cs_state::get_call_hook() const {
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return p_callhook;
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}
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cs_hook_cb &cs_state::get_call_hook() {
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return p_callhook;
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}
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void *cs_state::alloc(void *ptr, size_t os, size_t ns) {
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return p_state->alloc(ptr, os, ns);
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}
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void cs_state::clear_override(cs_ident &id) {
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if (!(id.get_flags() & CS_IDF_OVERRIDDEN)) {
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return;
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}
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switch (id.get_type()) {
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case cs_ident_type::Alias: {
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cs_alias &a = static_cast<cs_alias &>(id);
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cs_aliasInternal::clean_code(&a);
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a.get_value().set_str("");
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break;
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}
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case cs_ident_type::Ivar: {
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cs_ivar &iv = static_cast<cs_ivar &>(id);
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iv.set_value(iv.p_overrideval);
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iv.changed(*this);
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break;
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}
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case cs_ident_type::Fvar: {
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cs_fvar &fv = static_cast<cs_fvar &>(id);
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fv.set_value(fv.p_overrideval);
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fv.changed(*this);
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break;
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}
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case cs_ident_type::Svar: {
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cs_svar &sv = static_cast<cs_svar &>(id);
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sv.set_value(sv.p_overrideval);
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sv.changed(*this);
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break;
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}
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default:
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break;
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}
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id.p_flags &= ~CS_IDF_OVERRIDDEN;
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}
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void cs_state::clear_overrides() {
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for (auto &p: p_state->idents) {
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clear_override(*(p.second));
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}
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}
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cs_ident *cs_state::add_ident(cs_ident *id) {
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if (!id) {
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return nullptr;
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}
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p_state->idents[id->get_name()] = id;
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id->p_index = p_state->identmap.size();
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p_state->identmap.push_back(id);
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return p_state->identmap.back();
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}
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cs_ident *cs_state::new_ident(ostd::string_range name, int flags) {
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cs_ident *id = get_ident(name);
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if (!id) {
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if (cs_check_num(name)) {
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throw cs_error(
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*this, "number %s is not a valid identifier name", name
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);
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}
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id = add_ident(p_state->create<cs_alias>(name, flags));
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}
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return id;
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}
|
|
|
|
cs_ident *cs_state::force_ident(cs_value &v) {
|
|
switch (v.get_type()) {
|
|
case cs_value_type::Ident:
|
|
return v.get_ident();
|
|
case cs_value_type::Macro:
|
|
case cs_value_type::Cstring:
|
|
case cs_value_type::String: {
|
|
cs_ident *id = new_ident(v.get_strr());
|
|
v.set_ident(id);
|
|
return id;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
v.set_ident(p_state->identmap[DummyIdx]);
|
|
return p_state->identmap[DummyIdx];
|
|
}
|
|
|
|
cs_ident *cs_state::get_ident(ostd::string_range name) {
|
|
auto id = p_state->idents.find(name);
|
|
if (id != p_state->idents.end()) {
|
|
return id->second;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
cs_alias *cs_state::get_alias(ostd::string_range name) {
|
|
auto id = get_ident(name);
|
|
if (!id || !id->is_alias()) {
|
|
return nullptr;
|
|
}
|
|
return static_cast<cs_alias *>(id);
|
|
}
|
|
|
|
bool cs_state::have_ident(ostd::string_range name) {
|
|
return p_state->idents.find(name) != p_state->idents.end();
|
|
}
|
|
|
|
cs_ident_r cs_state::get_idents() {
|
|
return cs_ident_r(
|
|
p_state->identmap.data(),
|
|
p_state->identmap.data() + p_state->identmap.size()
|
|
);
|
|
}
|
|
|
|
cs_const_ident_r cs_state::get_idents() const {
|
|
auto ptr = const_cast<cs_ident const **>(p_state->identmap.data());
|
|
return cs_const_ident_r(ptr, ptr + p_state->identmap.size());
|
|
}
|
|
|
|
cs_ivar *cs_state::new_ivar(
|
|
ostd::string_range n, cs_int m, cs_int x, cs_int v, cs_var_cb f, int flags
|
|
) {
|
|
return add_ident(
|
|
p_state->create<cs_ivar>(n, m, x, v, std::move(f), flags)
|
|
)->get_ivar();
|
|
}
|
|
|
|
cs_fvar *cs_state::new_fvar(
|
|
ostd::string_range n, cs_float m, cs_float x, cs_float v, cs_var_cb f, int flags
|
|
) {
|
|
return add_ident(
|
|
p_state->create<cs_fvar>(n, m, x, v, std::move(f), flags)
|
|
)->get_fvar();
|
|
}
|
|
|
|
cs_svar *cs_state::new_svar(
|
|
ostd::string_range n, cs_string v, cs_var_cb f, int flags
|
|
) {
|
|
return add_ident(
|
|
p_state->create<cs_svar>(n, std::move(v), std::move(f), flags)
|
|
)->get_svar();
|
|
}
|
|
|
|
void cs_state::reset_var(ostd::string_range name) {
|
|
cs_ident *id = get_ident(name);
|
|
if (!id) {
|
|
throw cs_error(*this, "variable %s does not exist", name);
|
|
}
|
|
if (id->get_flags() & CS_IDF_READONLY) {
|
|
throw cs_error(*this, "variable %s is read only", name);
|
|
}
|
|
clear_override(*id);
|
|
}
|
|
|
|
void cs_state::touch_var(ostd::string_range name) {
|
|
cs_ident *id = get_ident(name);
|
|
if (id && id->is_var()) {
|
|
static_cast<cs_var *>(id)->changed(*this);
|
|
}
|
|
}
|
|
|
|
void cs_state::set_alias(ostd::string_range name, cs_value v) {
|
|
cs_ident *id = get_ident(name);
|
|
if (id) {
|
|
switch (id->get_type()) {
|
|
case cs_ident_type::Alias: {
|
|
cs_alias *a = static_cast<cs_alias *>(id);
|
|
if (a->get_index() < MaxArguments) {
|
|
cs_aliasInternal::set_arg(a, *this, v);
|
|
} else {
|
|
cs_aliasInternal::set_alias(a, *this, v);
|
|
}
|
|
return;
|
|
}
|
|
case cs_ident_type::Ivar:
|
|
set_var_int_checked(static_cast<cs_ivar *>(id), v.get_int());
|
|
break;
|
|
case cs_ident_type::Fvar:
|
|
set_var_float_checked(static_cast<cs_fvar *>(id), v.get_float());
|
|
break;
|
|
case cs_ident_type::Svar:
|
|
set_var_str_checked(static_cast<cs_svar *>(id), v.get_str());
|
|
break;
|
|
default:
|
|
throw cs_error(
|
|
*this, "cannot redefine builtin %s with an alias",
|
|
id->get_name()
|
|
);
|
|
}
|
|
} else if (cs_check_num(name)) {
|
|
throw cs_error(*this, "cannot alias number %s", name);
|
|
} else {
|
|
add_ident(p_state->create<cs_alias>(name, std::move(v), identflags));
|
|
}
|
|
}
|
|
|
|
void cs_state::print_var(cs_var *v) {
|
|
ostd::writeln(v->to_printable());
|
|
}
|
|
|
|
void cs_alias::get_cstr(cs_value &v) const {
|
|
switch (p_val.get_type()) {
|
|
case cs_value_type::Macro:
|
|
v.set_macro(p_val.get_strr());
|
|
break;
|
|
case cs_value_type::String:
|
|
case cs_value_type::Cstring:
|
|
v.set_cstr(p_val.get_strr());
|
|
break;
|
|
case cs_value_type::Int:
|
|
v.set_str(intstr(p_val.get_int()));
|
|
break;
|
|
case cs_value_type::Float:
|
|
v.set_str(floatstr(p_val.get_float()));
|
|
break;
|
|
default:
|
|
v.set_cstr("");
|
|
break;
|
|
}
|
|
}
|
|
|
|
void cs_alias::get_cval(cs_value &v) const {
|
|
switch (p_val.get_type()) {
|
|
case cs_value_type::Macro:
|
|
v.set_macro(p_val.get_strr());
|
|
break;
|
|
case cs_value_type::String:
|
|
case cs_value_type::Cstring:
|
|
v.set_cstr(p_val.get_strr());
|
|
break;
|
|
case cs_value_type::Int:
|
|
v.set_int(p_val.get_int());
|
|
break;
|
|
case cs_value_type::Float:
|
|
v.set_float(p_val.get_float());
|
|
break;
|
|
default:
|
|
v.set_null();
|
|
break;
|
|
}
|
|
}
|
|
|
|
cs_ident_type cs_ident::get_type() const {
|
|
if (p_type > CsIdAlias) {
|
|
return cs_ident_type::Special;
|
|
}
|
|
return cs_ident_type(p_type);
|
|
}
|
|
|
|
ostd::string_range cs_ident::get_name() const {
|
|
return p_name;
|
|
}
|
|
|
|
int cs_ident::get_flags() const {
|
|
return p_flags;
|
|
}
|
|
|
|
int cs_ident::get_index() const {
|
|
return p_index;
|
|
}
|
|
|
|
template<typename SF>
|
|
static inline void cs_override_var(cs_state &cs, cs_var *v, int &vflags, SF sf) {
|
|
if ((cs.identflags & CS_IDF_OVERRIDDEN) || (vflags & CS_IDF_OVERRIDE)) {
|
|
if (vflags & CS_IDF_PERSIST) {
|
|
throw cs_error(
|
|
cs, "cannot override persistent variable '%s'", v->get_name()
|
|
);
|
|
}
|
|
if (!(vflags & CS_IDF_OVERRIDDEN)) {
|
|
sf();
|
|
vflags |= CS_IDF_OVERRIDDEN;
|
|
}
|
|
} else {
|
|
if (vflags & CS_IDF_OVERRIDDEN) {
|
|
vflags &= ~CS_IDF_OVERRIDDEN;
|
|
}
|
|
}
|
|
}
|
|
|
|
void cs_state::set_var_int(
|
|
ostd::string_range name, cs_int v, bool dofunc, bool doclamp
|
|
) {
|
|
cs_ident *id = get_ident(name);
|
|
if (!id || id->is_ivar()) {
|
|
return;
|
|
}
|
|
cs_ivar *iv = static_cast<cs_ivar *>(id);
|
|
cs_override_var(
|
|
*this, iv, iv->p_flags,
|
|
[&iv]() { iv->p_overrideval = iv->get_value(); }
|
|
);
|
|
if (doclamp) {
|
|
iv->set_value(std::clamp(v, iv->get_val_min(), iv->get_val_max()));
|
|
} else {
|
|
iv->set_value(v);
|
|
}
|
|
if (dofunc) {
|
|
iv->changed(*this);
|
|
}
|
|
}
|
|
|
|
void cs_state::set_var_float(
|
|
ostd::string_range name, cs_float v, bool dofunc, bool doclamp
|
|
) {
|
|
cs_ident *id = get_ident(name);
|
|
if (!id || id->is_fvar()) {
|
|
return;
|
|
}
|
|
cs_fvar *fv = static_cast<cs_fvar *>(id);
|
|
cs_override_var(
|
|
*this, fv, fv->p_flags,
|
|
[&fv]() { fv->p_overrideval = fv->get_value(); }
|
|
);
|
|
if (doclamp) {
|
|
fv->set_value(std::clamp(v, fv->get_val_min(), fv->get_val_max()));
|
|
} else {
|
|
fv->set_value(v);
|
|
}
|
|
if (dofunc) {
|
|
fv->changed(*this);
|
|
}
|
|
}
|
|
|
|
void cs_state::set_var_str(
|
|
ostd::string_range name, ostd::string_range v, bool dofunc
|
|
) {
|
|
cs_ident *id = get_ident(name);
|
|
if (!id || id->is_svar()) {
|
|
return;
|
|
}
|
|
cs_svar *sv = static_cast<cs_svar *>(id);
|
|
cs_override_var(
|
|
*this, sv, sv->p_flags,
|
|
[&sv]() { sv->p_overrideval = sv->get_value(); }
|
|
);
|
|
sv->set_value(cs_string{v});
|
|
if (dofunc) {
|
|
sv->changed(*this);
|
|
}
|
|
}
|
|
|
|
std::optional<cs_int> cs_state::get_var_int(ostd::string_range name) {
|
|
cs_ident *id = get_ident(name);
|
|
if (!id || id->is_ivar()) {
|
|
return std::nullopt;
|
|
}
|
|
return static_cast<cs_ivar *>(id)->get_value();
|
|
}
|
|
|
|
std::optional<cs_float> cs_state::get_var_float(ostd::string_range name) {
|
|
cs_ident *id = get_ident(name);
|
|
if (!id || id->is_fvar()) {
|
|
return std::nullopt;
|
|
}
|
|
return static_cast<cs_fvar *>(id)->get_value();
|
|
}
|
|
|
|
std::optional<cs_string> cs_state::get_var_str(ostd::string_range name) {
|
|
cs_ident *id = get_ident(name);
|
|
if (!id || id->is_svar()) {
|
|
return std::nullopt;
|
|
}
|
|
return cs_string(static_cast<cs_svar *>(id)->get_value());
|
|
}
|
|
|
|
std::optional<cs_int> cs_state::get_var_min_int(ostd::string_range name) {
|
|
cs_ident *id = get_ident(name);
|
|
if (!id || id->is_ivar()) {
|
|
return std::nullopt;
|
|
}
|
|
return static_cast<cs_ivar *>(id)->get_val_min();
|
|
}
|
|
|
|
std::optional<cs_int> cs_state::get_var_max_int(ostd::string_range name) {
|
|
cs_ident *id = get_ident(name);
|
|
if (!id || id->is_ivar()) {
|
|
return std::nullopt;
|
|
}
|
|
return static_cast<cs_ivar *>(id)->get_val_max();
|
|
}
|
|
|
|
std::optional<cs_float> cs_state::get_var_min_float(ostd::string_range name) {
|
|
cs_ident *id = get_ident(name);
|
|
if (!id || id->is_fvar()) {
|
|
return std::nullopt;
|
|
}
|
|
return static_cast<cs_fvar *>(id)->get_val_min();
|
|
}
|
|
|
|
std::optional<cs_float> cs_state::get_var_max_float(ostd::string_range name) {
|
|
cs_ident *id = get_ident(name);
|
|
if (!id || id->is_fvar()) {
|
|
return std::nullopt;
|
|
}
|
|
return static_cast<cs_fvar *>(id)->get_val_max();
|
|
}
|
|
|
|
std::optional<cs_string>
|
|
cs_state::get_alias_val(ostd::string_range name) {
|
|
cs_alias *a = get_alias(name);
|
|
if (!a) {
|
|
return std::nullopt;
|
|
}
|
|
if ((a->get_index() < MaxArguments) && !cs_is_arg_used(*this, a)) {
|
|
return std::nullopt;
|
|
}
|
|
return a->get_value().get_str();
|
|
}
|
|
|
|
cs_int cs_clamp_var(cs_state &cs, cs_ivar *iv, cs_int v) {
|
|
if (v < iv->get_val_min()) {
|
|
v = iv->get_val_min();
|
|
} else if (v > iv->get_val_max()) {
|
|
v = iv->get_val_max();
|
|
} else {
|
|
return v;
|
|
}
|
|
throw cs_error(
|
|
cs,
|
|
(iv->get_flags() & CS_IDF_HEX)
|
|
? (
|
|
(iv->get_val_min() <= 255)
|
|
? "valid range for '%s' is %d..0x%X"
|
|
: "valid range for '%s' is 0x%X..0x%X"
|
|
)
|
|
: "valid range for '%s' is %d..%d",
|
|
iv->get_name(), iv->get_val_min(), iv->get_val_max()
|
|
);
|
|
}
|
|
|
|
void cs_state::set_var_int_checked(cs_ivar *iv, cs_int v) {
|
|
if (iv->get_flags() & CS_IDF_READONLY) {
|
|
throw cs_error(
|
|
*this, "variable '%s' is read only", iv->get_name()
|
|
);
|
|
}
|
|
cs_override_var(
|
|
*this, iv, iv->p_flags,
|
|
[&iv]() { iv->p_overrideval = iv->get_value(); }
|
|
);
|
|
if ((v < iv->get_val_min()) || (v > iv->get_val_max())) {
|
|
v = cs_clamp_var(*this, iv, v);
|
|
}
|
|
iv->set_value(v);
|
|
iv->changed(*this);
|
|
}
|
|
|
|
void cs_state::set_var_int_checked(cs_ivar *iv, cs_value_r args) {
|
|
cs_int v = args[0].force_int();
|
|
if ((iv->get_flags() & CS_IDF_HEX) && (args.size() > 1)) {
|
|
v = (v << 16) | (args[1].force_int() << 8);
|
|
if (args.size() > 2) {
|
|
v |= args[2].force_int();
|
|
}
|
|
}
|
|
set_var_int_checked(iv, v);
|
|
}
|
|
|
|
cs_float cs_clamp_fvar(cs_state &cs, cs_fvar *fv, cs_float v) {
|
|
if (v < fv->get_val_min()) {
|
|
v = fv->get_val_min();
|
|
} else if (v > fv->get_val_max()) {
|
|
v = fv->get_val_max();
|
|
} else {
|
|
return v;
|
|
}
|
|
throw cs_error(
|
|
cs, "valid range for '%s' is %s..%s", floatstr(fv->get_val_min()),
|
|
floatstr(fv->get_val_max())
|
|
);
|
|
return v;
|
|
}
|
|
|
|
void cs_state::set_var_float_checked(cs_fvar *fv, cs_float v) {
|
|
if (fv->get_flags() & CS_IDF_READONLY) {
|
|
throw cs_error(
|
|
*this, "variable '%s' is read only", fv->get_name()
|
|
);
|
|
}
|
|
cs_override_var(
|
|
*this, fv, fv->p_flags,
|
|
[&fv]() { fv->p_overrideval = fv->get_value(); }
|
|
);
|
|
if ((v < fv->get_val_min()) || (v > fv->get_val_max())) {
|
|
v = cs_clamp_fvar(*this, fv, v);
|
|
}
|
|
fv->set_value(v);
|
|
fv->changed(*this);
|
|
}
|
|
|
|
void cs_state::set_var_str_checked(cs_svar *sv, ostd::string_range v) {
|
|
if (sv->get_flags() & CS_IDF_READONLY) {
|
|
throw cs_error(
|
|
*this, "variable '%s' is read only", sv->get_name()
|
|
);
|
|
}
|
|
cs_override_var(
|
|
*this, sv, sv->p_flags,
|
|
[&sv]() { sv->p_overrideval = sv->get_value(); }
|
|
);
|
|
sv->set_value(cs_string{v});
|
|
sv->changed(*this);
|
|
}
|
|
|
|
cs_command *cs_state::new_command(
|
|
ostd::string_range name, ostd::string_range args, cs_command_cb func
|
|
) {
|
|
int nargs = 0;
|
|
for (ostd::string_range fmt(args); !fmt.empty(); ++fmt) {
|
|
switch (*fmt) {
|
|
case 'i':
|
|
case 'b':
|
|
case 'f':
|
|
case 'F':
|
|
case 't':
|
|
case 'T':
|
|
case 'E':
|
|
case 'N':
|
|
case 'S':
|
|
case 's':
|
|
case 'e':
|
|
case 'r':
|
|
case '$':
|
|
if (nargs < MaxArguments) {
|
|
++nargs;
|
|
}
|
|
break;
|
|
case '1':
|
|
case '2':
|
|
case '3':
|
|
case '4':
|
|
if (nargs < (*fmt - '0')) {
|
|
return nullptr;
|
|
}
|
|
if ((fmt.size() != 2) || ((fmt[1] != 'C') && (fmt[1] != 'V'))) {
|
|
return nullptr;
|
|
}
|
|
if (nargs < MaxArguments) {
|
|
fmt = ostd::string_range{&fmt[-int(*fmt) + '0' - 1], &fmt[fmt.size()]}
|
|
}
|
|
break;
|
|
case 'C':
|
|
case 'V':
|
|
if (fmt.size() != 1) {
|
|
return nullptr;
|
|
}
|
|
break;
|
|
default:
|
|
return nullptr;
|
|
}
|
|
}
|
|
return static_cast<cs_command *>(
|
|
add_ident(p_state->create<cs_command>(name, args, nargs, std::move(func)))
|
|
);
|
|
}
|
|
|
|
static inline void cs_do_loop(
|
|
cs_state &cs, cs_ident &id, cs_int offset, cs_int n, cs_int step,
|
|
cs_bcode *cond, cs_bcode *body
|
|
) {
|
|
cs_stacked_value idv{&id};
|
|
if (n <= 0 || !idv.has_alias()) {
|
|
return;
|
|
}
|
|
for (cs_int i = 0; i < n; ++i) {
|
|
idv.set_int(offset + i * step);
|
|
idv.push();
|
|
if (cond && !cs.run_bool(cond)) {
|
|
break;
|
|
}
|
|
switch (cs.run_loop(body)) {
|
|
case CsLoopState::Break:
|
|
goto end;
|
|
default: /* continue and normal */
|
|
break;
|
|
}
|
|
}
|
|
end:
|
|
return;
|
|
}
|
|
|
|
static inline void cs_loop_conc(
|
|
cs_state &cs, cs_value &res, cs_ident &id, cs_int offset, cs_int n,
|
|
cs_int step, cs_bcode *body, bool space
|
|
) {
|
|
cs_stacked_value idv{&id};
|
|
if (n <= 0 || !idv.has_alias()) {
|
|
return;
|
|
}
|
|
cs_string s;
|
|
for (cs_int i = 0; i < n; ++i) {
|
|
idv.set_int(offset + i * step);
|
|
idv.push();
|
|
cs_value v;
|
|
switch (cs.run_loop(body, v)) {
|
|
case CsLoopState::Break:
|
|
goto end;
|
|
case CsLoopState::Continue:
|
|
continue;
|
|
default:
|
|
break;
|
|
}
|
|
if (space && i) {
|
|
s += ' ';
|
|
}
|
|
s += v.get_str();
|
|
}
|
|
end:
|
|
res.set_str(std::move(s));
|
|
}
|
|
|
|
void cs_init_lib_base(cs_state &gcs) {
|
|
gcs.new_command("error", "s", [](auto &cs, auto args, auto &) {
|
|
throw cs_error(cs, args[0].get_strr());
|
|
});
|
|
|
|
gcs.new_command("pcall", "err", [](auto &cs, auto args, auto &ret) {
|
|
cs_alias *cret = args[1].get_ident()->get_alias(),
|
|
*css = args[2].get_ident()->get_alias();
|
|
if (!cret || !css) {
|
|
ret.set_int(0);
|
|
return;
|
|
}
|
|
cs_value result, tback;
|
|
bool rc = true;
|
|
try {
|
|
cs.run(args[0].get_code(), result);
|
|
} catch (cs_error const &e) {
|
|
result.set_str(cs_string{e.what()});
|
|
if (e.get_stack().get()) {
|
|
auto app = ostd::appender_range<cs_string>{};
|
|
cscript::util::print_stack(app, e.get_stack());
|
|
tback.set_str(std::move(app.get()));
|
|
}
|
|
rc = false;
|
|
}
|
|
ret.set_int(rc);
|
|
cs_aliasInternal::set_alias(cret, cs, result);
|
|
cs_aliasInternal::set_alias(css, cs, tback);
|
|
});
|
|
|
|
gcs.new_command("?", "tTT", [](auto &, auto args, auto &res) {
|
|
if (args[0].get_bool()) {
|
|
res = std::move(args[1]);
|
|
} else {
|
|
res = std::move(args[2]);
|
|
}
|
|
});
|
|
|
|
gcs.new_command("cond", "ee2V", [](auto &cs, auto args, auto &res) {
|
|
for (size_t i = 0; i < args.size(); i += 2) {
|
|
if ((i + 1) < args.size()) {
|
|
if (cs.run_bool(args[i].get_code())) {
|
|
cs.run(args[i + 1].get_code(), res);
|
|
break;
|
|
}
|
|
} else {
|
|
cs.run(args[i].get_code(), res);
|
|
break;
|
|
}
|
|
}
|
|
});
|
|
|
|
gcs.new_command("case", "ite2V", [](auto &cs, auto args, auto &res) {
|
|
cs_int val = args[0].get_int();
|
|
for (size_t i = 1; (i + 1) < args.size(); i += 2) {
|
|
if (
|
|
(args[i].get_type() == cs_value_type::Null) ||
|
|
(args[i].get_int() == val)
|
|
) {
|
|
cs.run(args[i + 1].get_code(), res);
|
|
return;
|
|
}
|
|
}
|
|
});
|
|
|
|
gcs.new_command("casef", "fte2V", [](auto &cs, auto args, auto &res) {
|
|
cs_float val = args[0].get_float();
|
|
for (size_t i = 1; (i + 1) < args.size(); i += 2) {
|
|
if (
|
|
(args[i].get_type() == cs_value_type::Null) ||
|
|
(args[i].get_float() == val)
|
|
) {
|
|
cs.run(args[i + 1].get_code(), res);
|
|
return;
|
|
}
|
|
}
|
|
});
|
|
|
|
gcs.new_command("cases", "ste2V", [](auto &cs, auto args, auto &res) {
|
|
cs_string val = args[0].get_str();
|
|
for (size_t i = 1; (i + 1) < args.size(); i += 2) {
|
|
if (
|
|
(args[i].get_type() == cs_value_type::Null) ||
|
|
(args[i].get_str() == val)
|
|
) {
|
|
cs.run(args[i + 1].get_code(), res);
|
|
return;
|
|
}
|
|
}
|
|
});
|
|
|
|
gcs.new_command("pushif", "rTe", [](auto &cs, auto args, auto &res) {
|
|
cs_stacked_value idv{args[0].get_ident()};
|
|
if (!idv.has_alias() || (idv.get_alias()->get_index() < MaxArguments)) {
|
|
return;
|
|
}
|
|
if (args[1].get_bool()) {
|
|
idv = std::move(args[1]);
|
|
idv.push();
|
|
cs.run(args[2].get_code(), res);
|
|
}
|
|
});
|
|
|
|
gcs.new_command("loop", "rie", [](auto &cs, auto args, auto &) {
|
|
cs_do_loop(
|
|
cs, *args[0].get_ident(), 0, args[1].get_int(), 1, nullptr,
|
|
args[2].get_code()
|
|
);
|
|
});
|
|
|
|
gcs.new_command("loop+", "riie", [](auto &cs, auto args, auto &) {
|
|
cs_do_loop(
|
|
cs, *args[0].get_ident(), args[1].get_int(), args[2].get_int(), 1,
|
|
nullptr, args[3].get_code()
|
|
);
|
|
});
|
|
|
|
gcs.new_command("loop*", "riie", [](auto &cs, auto args, auto &) {
|
|
cs_do_loop(
|
|
cs, *args[0].get_ident(), 0, args[1].get_int(), args[2].get_int(),
|
|
nullptr, args[3].get_code()
|
|
);
|
|
});
|
|
|
|
gcs.new_command("loop+*", "riiie", [](auto &cs, auto args, auto &) {
|
|
cs_do_loop(
|
|
cs, *args[0].get_ident(), args[1].get_int(), args[3].get_int(),
|
|
args[2].get_int(), nullptr, args[4].get_code()
|
|
);
|
|
});
|
|
|
|
gcs.new_command("loopwhile", "riee", [](auto &cs, auto args, auto &) {
|
|
cs_do_loop(
|
|
cs, *args[0].get_ident(), 0, args[1].get_int(), 1,
|
|
args[2].get_code(), args[3].get_code()
|
|
);
|
|
});
|
|
|
|
gcs.new_command("loopwhile+", "riiee", [](auto &cs, auto args, auto &) {
|
|
cs_do_loop(
|
|
cs, *args[0].get_ident(), args[1].get_int(), args[2].get_int(), 1,
|
|
args[3].get_code(), args[4].get_code()
|
|
);
|
|
});
|
|
|
|
gcs.new_command("loopwhile*", "riiee", [](auto &cs, auto args, auto &) {
|
|
cs_do_loop(
|
|
cs, *args[0].get_ident(), 0, args[2].get_int(), args[1].get_int(),
|
|
args[3].get_code(), args[4].get_code()
|
|
);
|
|
});
|
|
|
|
gcs.new_command("loopwhile+*", "riiiee", [](auto &cs, auto args, auto &) {
|
|
cs_do_loop(
|
|
cs, *args[0].get_ident(), args[1].get_int(), args[3].get_int(),
|
|
args[2].get_int(), args[4].get_code(), args[5].get_code()
|
|
);
|
|
});
|
|
|
|
gcs.new_command("while", "ee", [](auto &cs, auto args, auto &) {
|
|
cs_bcode *cond = args[0].get_code(), *body = args[1].get_code();
|
|
while (cs.run_bool(cond)) {
|
|
switch (cs.run_loop(body)) {
|
|
case CsLoopState::Break:
|
|
goto end;
|
|
default: /* continue and normal */
|
|
break;
|
|
}
|
|
}
|
|
end:
|
|
return;
|
|
});
|
|
|
|
gcs.new_command("loopconcat", "rie", [](auto &cs, auto args, auto &res) {
|
|
cs_loop_conc(
|
|
cs, res, *args[0].get_ident(), 0, args[1].get_int(), 1,
|
|
args[2].get_code(), true
|
|
);
|
|
});
|
|
|
|
gcs.new_command("loopconcat+", "riie", [](auto &cs, auto args, auto &res) {
|
|
cs_loop_conc(
|
|
cs, res, *args[0].get_ident(), args[1].get_int(),
|
|
args[2].get_int(), 1, args[3].get_code(), true
|
|
);
|
|
});
|
|
|
|
gcs.new_command("loopconcat*", "riie", [](auto &cs, auto args, auto &res) {
|
|
cs_loop_conc(
|
|
cs, res, *args[0].get_ident(), 0, args[2].get_int(),
|
|
args[1].get_int(), args[3].get_code(), true
|
|
);
|
|
});
|
|
|
|
gcs.new_command("loopconcat+*", "riiie", [](auto &cs, auto args, auto &res) {
|
|
cs_loop_conc(
|
|
cs, res, *args[0].get_ident(), args[1].get_int(),
|
|
args[3].get_int(), args[2].get_int(), args[4].get_code(), true
|
|
);
|
|
});
|
|
|
|
gcs.new_command("loopconcatword", "rie", [](auto &cs, auto args, auto &res) {
|
|
cs_loop_conc(
|
|
cs, res, *args[0].get_ident(), 0, args[1].get_int(), 1,
|
|
args[2].get_code(), false
|
|
);
|
|
});
|
|
|
|
gcs.new_command("loopconcatword+", "riie", [](
|
|
auto &cs, auto args, auto &res
|
|
) {
|
|
cs_loop_conc(
|
|
cs, res, *args[0].get_ident(), args[1].get_int(),
|
|
args[2].get_int(), 1, args[3].get_code(), false
|
|
);
|
|
});
|
|
|
|
gcs.new_command("loopconcatword*", "riie", [](
|
|
auto &cs, auto args, auto &res
|
|
) {
|
|
cs_loop_conc(
|
|
cs, res, *args[0].get_ident(), 0, args[2].get_int(),
|
|
args[1].get_int(), args[3].get_code(), false
|
|
);
|
|
});
|
|
|
|
gcs.new_command("loopconcatword+*", "riiie", [](
|
|
auto &cs, auto args, auto &res
|
|
) {
|
|
cs_loop_conc(
|
|
cs, res, *args[0].get_ident(), args[1].get_int(), args[3].get_int(),
|
|
args[2].get_int(), args[4].get_code(), false
|
|
);
|
|
});
|
|
|
|
gcs.new_command("push", "rTe", [](auto &cs, auto args, auto &res) {
|
|
cs_stacked_value idv{args[0].get_ident()};
|
|
if (!idv.has_alias() || (idv.get_alias()->get_index() < MaxArguments)) {
|
|
return;
|
|
}
|
|
idv = std::move(args[1]);
|
|
idv.push();
|
|
cs.run(args[2].get_code(), res);
|
|
});
|
|
|
|
gcs.new_command("resetvar", "s", [](auto &cs, auto args, auto &) {
|
|
cs.reset_var(args[0].get_strr());
|
|
});
|
|
|
|
gcs.new_command("alias", "sT", [](auto &cs, auto args, auto &) {
|
|
cs.set_alias(args[0].get_strr(), std::move(args[1]));
|
|
});
|
|
|
|
gcs.new_command("getvarmin", "s", [](auto &cs, auto args, auto &res) {
|
|
res.set_int(cs.get_var_min_int(args[0].get_strr()).value_or(0));
|
|
});
|
|
gcs.new_command("getvarmax", "s", [](auto &cs, auto args, auto &res) {
|
|
res.set_int(cs.get_var_max_int(args[0].get_strr()).value_or(0));
|
|
});
|
|
gcs.new_command("getfvarmin", "s", [](auto &cs, auto args, auto &res) {
|
|
res.set_float(cs.get_var_min_float(args[0].get_strr()).value_or(0.0f));
|
|
});
|
|
gcs.new_command("getfvarmax", "s", [](auto &cs, auto args, auto &res) {
|
|
res.set_float(cs.get_var_max_float(args[0].get_strr()).value_or(0.0f));
|
|
});
|
|
|
|
gcs.new_command("identexists", "s", [](auto &cs, auto args, auto &res) {
|
|
res.set_int(cs.have_ident(args[0].get_strr()));
|
|
});
|
|
|
|
gcs.new_command("getalias", "s", [](auto &cs, auto args, auto &res) {
|
|
res.set_str(
|
|
std::move(cs.get_alias_val(args[0].get_strr()).value_or(""))
|
|
);
|
|
});
|
|
}
|
|
|
|
void cs_init_lib_math(cs_state &cs);
|
|
void cs_init_lib_string(cs_state &cs);
|
|
void cs_init_lib_list(cs_state &cs);
|
|
|
|
OSTD_EXPORT void cs_state::init_libs(int libs) {
|
|
if (libs & CsLibMath) {
|
|
cs_init_lib_math(*this);
|
|
}
|
|
if (libs & CsLibString) {
|
|
cs_init_lib_string(*this);
|
|
}
|
|
if (libs & CsLibList) {
|
|
cs_init_lib_list(*this);
|
|
}
|
|
}
|
|
|
|
} /* namespace cscript */
|