diff options
Diffstat (limited to 'src/tolua_base.h')
-rw-r--r-- | src/tolua_base.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/tolua_base.h b/src/tolua_base.h new file mode 100644 index 000000000..4f1038c09 --- /dev/null +++ b/src/tolua_base.h @@ -0,0 +1,128 @@ +#ifndef TOLUA_BASE_H +#define TOLUA_BASE_H + +#pragma warning(disable:4800) // This file is ONLY included by Bindings.cpp and it throws lots of C4800 warnings + +#include "tolua++.h" + + + + + +class ToluaBase { + + int lua_instance; + +protected: + + lua_State* lua_state; + + void lua_stacktrace(lua_State* L) const + { + lua_Debug entry; + int depth = 0; + + while (lua_getstack(L, depth, &entry)) + { + lua_getinfo(L, "Sln", &entry); + + LOGERROR("%s(%d): %s", entry.short_src, entry.currentline, entry.name ? entry.name : "?"); + depth++; + } + } + + + bool report_errors(int status) const + { + if ( status!=0 ) + { + const char* s = lua_tostring(lua_state, -1); + LOGERROR("-- %s", s ); + //lua_pop(lua_state, 1); + LOGERROR("Stack:"); + lua_stacktrace( lua_state ); + return true; + } + return false; + } + + bool push_method(const char* name, lua_CFunction f) const { + + if (!lua_state) return false; + + lua_getref(lua_state, lua_instance); + lua_pushstring(lua_state, name); + //LOGINFO("1. push_method() Stack size: %i", lua_gettop( lua_state ) ); + lua_gettable(lua_state, -2); + //LOGINFO("2. push_method() Stack size: %i", lua_gettop( lua_state ) ); + + if (lua_isnil(lua_state, -1)) { + + // pop the table + lua_pop(lua_state, 2); + return false; + + } else { + + if (f) { + if (lua_iscfunction(lua_state, -1)) { + lua_pop(lua_state, 2); + return false; + }; + /* // not for now + lua_pushcfunction(lua_state, f); + if (lua_rawequal(lua_state, -1, -2)) { + + // avoid recursion, pop both functions and the table + lua_pop(lua_state, 3); + return false; + }; + + // pop f + lua_pop(lua_state, 1); + */ + }; + + // swap table with function + lua_insert(lua_state, -2); + }; + + return true; + }; + + void dbcall(lua_State* L, int nargs, int nresults) const { + + // using lua_call for now + int s = lua_pcall(L, nargs, nresults, 0); + report_errors( s ); + }; +public: + + int GetInstance() { return lua_instance; } + lua_State* GetLuaState() { return lua_state; } + + void tolua__set_instance(lua_State* L, lua_Object lo) { + + lua_state = L; + + lua_pushvalue(L, lo); + lua_instance = lua_ref(lua_state, 1); + }; + + ToluaBase() { + + lua_state = NULL; + }; + + ~ToluaBase() { + + if (lua_state) { + + lua_unref(lua_state, lua_instance); + }; + }; +}; + +#endif + + |