Function lua_java_use

src/agent/lua/api_java.c:725–750

Java.use("com.example.Class") -> JavaClassWrapper userdata

// Java.use("com.example.Class") -> JavaClassWrapper userdata
static int lua_java_use(lua_State* L) {
    const char* class_name = luaL_checkstring(L, 1);

    JNIEnv* env = get_jni_env();
    if (!env) {
        lua_pushnil(L);
        lua_pushstring(L, "Failed to get JNIEnv");
        return 2;
    }

    JavaClassWrapper* wrapper = java_use(env, class_name);
    if (!wrapper) {
        lua_pushnil(L);
        lua_pushstring(L, "Class not found");
        return 2;
    }

    JavaClassWrapper** ud = (JavaClassWrapper**)lua_newuserdata(L, sizeof(JavaClassWrapper*));
    *ud = wrapper;

    // Metatable ekle
    luaL_getmetatable(L, JAVA_WRAPPER_MT);
    lua_setmetatable(L, -2);

    return 1;
}

static int lua_java_new(lua_State* L) {
    JavaClassWrapper** ud = (JavaClassWrapper**)luaL_checkudata(L, 1, JAVA_WRAPPER_MT);