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lua environmnents-related update

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This commit is contained in:
MihailRis
2024-02-09 15:46:43 +03:00
parent 9ad371862c
commit fce77bc896
10 changed files with 67 additions and 87 deletions
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src/logic/scripting/LuaState.cpp
+25 -43
View File
@@ -25,8 +25,12 @@ lua::LuaState::LuaState() {
createFuncs();
lua_getglobal(L, "_G");
lua_setglobal(L, ":G");
lua_pushvalue(L, LUA_GLOBALSINDEX);
setglobal(envName(0));
}
const std::string lua::LuaState::envName(int env) const {
return "_ENV"+util::mangleid(env);
}
lua::LuaState::~LuaState() {
@@ -109,10 +113,13 @@ void lua::LuaState::createFuncs() {
addfunc("set_block_user_bits", l_set_block_user_bits);
}
void lua::LuaState::loadbuffer(const std::string& src, const std::string& file) {
void lua::LuaState::loadbuffer(int env, const std::string& src, const std::string& file) {
if (luaL_loadbuffer(L, src.c_str(), src.length(), file.c_str())) {
throw lua::luaerror(lua_tostring(L, -1));
}
if (env && getglobal(envName(env))) {
lua_setfenv(L, -2);
}
}
int lua::LuaState::call(int argc) {
@@ -130,14 +137,14 @@ int lua::LuaState::callNoThrow(int argc) {
return 1;
}
int lua::LuaState::eval(const std::string& src, const std::string& file) {
int lua::LuaState::eval(int env, const std::string& src, const std::string& file) {
auto srcText = "return ("+src+")";
loadbuffer(srcText, file);
loadbuffer(env, srcText, file);
return call(0);
}
int lua::LuaState::execute(const std::string& src, const std::string& file) {
loadbuffer(src, file);
int lua::LuaState::execute(int env, const std::string& src, const std::string& file) {
loadbuffer(env, src, file);
return callNoThrow(0);
}
@@ -186,49 +193,24 @@ const std::string lua::LuaState::storeAnonymous() {
return funcName;
}
void lua::LuaState::initEnvironment() {
lua_getglobal(L, "_G");
lua_setfield(L, -1, ":G");
}
int lua::LuaState::createEnvironment() {
int id = nextEnvironment++;
// globals table
lua_createtable(L, 0, 1);
// metatable
lua_createtable(L, 0, 1);
if (currentEnvironment != 0) {
setEnvironment(0);
}
lua_pushvalue(L, LUA_GLOBALSINDEX);
lua_setfield(L, -2, "__index");
lua_setmetatable(L, -2);
lua_createtable(L, 0, 0);
initEnvironment();
setglobal("_N"+util::mangleid(id));
setEnvironment(id);
setglobal(envName(id));
return id;
}
void lua::LuaState::removeEnvironment(int id) {
if (currentEnvironment == id) {
setEnvironment(0);
}
lua_pushnil(L);
setglobal("_N"+util::mangleid(id));
}
int lua::LuaState::getEnvironment() const {
return currentEnvironment;
}
void lua::LuaState::setEnvironment(int id) {
if (id == 0) {
getglobal(":G");
lua_setfenv(L, -1);
} else {
getglobal(":G");
lua_getfield(L, -1, ("_N"+util::mangleid(id)).c_str());
if (lua_isnil(L, -1)) {
lua_pop(L, -1);
throw luaerror("environment "+std::to_string(id)+" was not found");
}
lua_setfenv(L, -1);
}
setglobal(envName(id));
}
src/logic/scripting/LuaState.h
+4 -7
View File
@@ -17,7 +17,6 @@ namespace lua {
class LuaState {
lua_State* L;
int nextEnvironment = 1;
int currentEnvironment = 0;
void logError(const std::string& text);
void initEnvironment();
@@ -25,7 +24,8 @@ namespace lua {
LuaState();
~LuaState();
void loadbuffer(const std::string& src, const std::string& file);
const std::string envName(int env) const;
void loadbuffer(int env, const std::string& src, const std::string& file);
int gettop() const;
int pushivec3(luaint x, luaint y, luaint z);
int pushinteger(luaint x);
@@ -35,8 +35,8 @@ namespace lua {
luaint tointeger(int index);
int call(int argc);
int callNoThrow(int argc);
int execute(const std::string& src, const std::string& file="<string>");
int eval(const std::string& src, const std::string& file="<eval>");
int execute(int env, const std::string& src, const std::string& file="<string>");
int eval(int env, const std::string& src, const std::string& file="<eval>");
void openlib(const std::string& name, const luaL_Reg* libfuncs, int nup);
void addfunc(const std::string& name, lua_CFunction func);
bool getglobal(const std::string& name);
@@ -47,9 +47,6 @@ namespace lua {
void createFuncs();
int createEnvironment();
void removeEnvironment(int id);
int getEnvironment() const;
void setEnvironment(int id);
const std::string storeAnonymous();
};
}
src/logic/scripting/scripting.cpp
+11 -23
View File
@@ -47,7 +47,7 @@ void load_script(fs::path name) {
fs::path file = paths->getResources()/fs::path("scripts")/name;
std::string src = files::read_string(file);
state->execute(src, file.u8string());
state->execute(0, src, file.u8string());
}
void scripting::initialize(Engine* engine) {
@@ -58,35 +58,23 @@ void scripting::initialize(Engine* engine) {
load_script(fs::path("stdlib.lua"));
}
// todo: luaL state check
runnable scripting::create_runnable(
int env,
const std::string& file,
const std::string& src
) {
return [=](){
state->execute(src, file);
};
}
runnable scripting::create_runnable(
const std::string& file,
const std::string& src,
const Environment& env
) {
return [=](){
int previous = state->getEnvironment();
state->setEnvironment(env.getId());
state->execute(src, file);
state->setEnvironment(previous);
state->execute(env, src, file);
};
}
wstringconsumer scripting::create_wstring_consumer(
int env,
const std::string& src,
const std::string& file
) {
try {
if (state->eval(src, file) == 0)
if (state->eval(env, src, file) == 0)
return [](const std::wstring& _) {};
} catch (const lua::luaerror& err) {
std::cerr << err.what() << std::endl;
@@ -220,7 +208,7 @@ bool scripting::on_item_break_block(Player* player, const ItemDef* item, int x,
void scripting::load_block_script(std::string prefix, fs::path file, block_funcs_set& funcsset) {
std::string src = files::read_string(file);
std::cout << "loading script " << file.u8string() << std::endl;
state->execute(src, file.u8string());
state->execute(0, src, file.u8string());
funcsset.init=state->rename("init", prefix+".init");
funcsset.update=state->rename("on_update", prefix+".update");
@@ -234,7 +222,7 @@ void scripting::load_block_script(std::string prefix, fs::path file, block_funcs
void scripting::load_item_script(std::string prefix, fs::path file, item_funcs_set& funcsset) {
std::string src = files::read_string(file);
std::cout << "loading script " << file.u8string() << std::endl;
state->execute(src, file.u8string());
state->execute(0, src, file.u8string());
funcsset.init=state->rename("init", prefix+".init");
funcsset.on_use_on_block=state->rename("on_use_on_block", prefix+".useon");
funcsset.on_block_break_by=state->rename("on_block_break_by", prefix+".blockbreakby");
@@ -244,7 +232,7 @@ void scripting::load_world_script(std::string prefix, fs::path file) {
std::string src = files::read_string(file);
std::cout << "loading script " << file.u8string() << std::endl;
state->loadbuffer(src, file.u8string());
state->loadbuffer(0, src, file.u8string());
state->callNoThrow(0);
state->rename("init", prefix+".init");
@@ -253,12 +241,12 @@ void scripting::load_world_script(std::string prefix, fs::path file) {
state->rename("on_world_quit", prefix+".worldquit");
}
void scripting::load_layout_script(fs::path file, uidocscript& script) {
void scripting::load_layout_script(int env, fs::path file, uidocscript& script) {
std::string src = files::read_string(file);
std::cout << "loading script " << file.u8string() << std::endl;
script.environment = state->createEnvironment();
state->loadbuffer(src, file.u8string());
script.environment = env;
state->loadbuffer(env, src, file.u8string());
state->callNoThrow(0);
script.onopen = state->hasglobal("on_open");
script.onclose = state->hasglobal("on_close");
src/logic/scripting/scripting.h
+3 -7
View File
@@ -38,17 +38,13 @@ namespace scripting {
void initialize(Engine* engine);
runnable create_runnable(
int env,
const std::string& filename,
const std::string& source
);
runnable create_runnable(
const std::string& filename,
const std::string& source,
const Environment& env
);
wstringconsumer create_wstring_consumer(
int env,
const std::string& src,
const std::string& file="<string>"
);
@@ -69,6 +65,6 @@ namespace scripting {
void load_block_script(std::string prefix, fs::path file, block_funcs_set& funcsset);
void load_item_script(std::string prefix, fs::path file, item_funcs_set& funcsset);
void load_world_script(std::string prefix, fs::path file);
void load_layout_script(fs::path file, uidocscript& script);
void load_layout_script(int env, fs::path file, uidocscript& script);
void close();
}