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#include "lua.h"
#include <stdio.h>
#include "io.h"
#include <stdlib.h>
#include <string.h>
#include "lua5.4/lua.h"
#include "types/str.h"
#include "types/parray.h"
static int ii = 0;
static int malloc_count = 0;
void* __malloc_(size_t N){
printf("hi");
malloc_count++;
return (malloc)(N);
}
void __free_(void* p){
malloc_count--;
printf("%i\n",malloc_count);
return (free)(p);
}
int writer(lua_State *L, const void* p, size_t sz, void* ud){
char o[2] = {0};
for (int i =0; i<sz; i++){
//printf("%c\n",((char*)p)[i]);
o[0] = ((char*)p)[i];
str_pushl((str*)ud, o, 1);
//printf("%s\n",((str*)ud)->c);
}
return 0;
}
/**
* @brief copy top element from src to dest
*
* @param {lua_State*} source
* @param {lua_State*} dest
* @param {void*} items already visited, use NULL
* @param {int} whether or not to skip meta data
*/
void luaI_deepcopy(lua_State* src, lua_State* dest, void* _seen, int skip_meta){
parray_t* seen = (parray_t*)_seen;
int wnull = seen == NULL;
if(wnull) seen = parray_init();
size_t len;
//printf("%i\n",seen->len);
int at, at2;
//int *sp = malloc(1);
//int *sp;
char* s;
void* whar;
double n;
int old_top = lua_gettop(src);
int modi = 0;
switch(lua_type(src, -1)){
case LUA_TNUMBER:
n = luaL_checknumber(src, -1);
if(n == (int)n) lua_pushinteger(dest, (int)n);
else lua_pushnumber(dest, n);
break;
case LUA_TSTRING:
s = (char*)luaL_checklstring(src, -1, &len);
lua_pushlstring(dest, s, len);
break;
case LUA_TTABLE:
modi = 1;
lua_newtable(dest);
at = lua_gettop(dest);
at2 = lua_gettop(src);
char aauwu[50] = {0};
sprintf(aauwu, "%p", lua_topointer(src, at2));
whar = parray_get(seen, aauwu);
if(whar != NULL){
lua_pop(dest, 1);
lua_rawgeti(dest, LUA_REGISTRYINDEX, *(int*)whar);
return;
}
int *sp = malloc(sizeof * sp);
int r = luaL_ref(dest, LUA_REGISTRYINDEX);
lua_rawgeti(dest, LUA_REGISTRYINDEX, r);
*sp = r;
parray_set(seen, aauwu, sp);
lua_pushnil(src);
for(;lua_next(src, at2) != 0;){
int first, second = first = lua_gettop(src);
first -= 1;
lua_pushvalue(src, first);
luaI_deepcopy(src, dest, seen, 0);
lua_pushvalue(src, second);
luaI_deepcopy(src, dest, seen, 0);
lua_settable(dest, at);
lua_pop(src, 3);
}
break;
case LUA_TFUNCTION:
if(lua_iscfunction(src, old_top)){
//kinda silly
lua_pushcfunction(dest, lua_tocfunction(src, -1));
break;
}
str* awa = str_init("");
lua_dump(src, writer, (void*)awa, 0);
lua_pushlstring(dest, awa->c, awa->len);
luaL_loadbuffer(dest, awa->c, awa->len, awa->c);
lua_remove(dest, -2);
str_free(awa);
break;
case LUA_TUSERDATA:
modi = 1;
size_t raw_len = lua_rawlen(src, -1);
void* ud = lua_newuserdata(dest, raw_len);
memcpy(ud, lua_touserdata(src, -1), raw_len);
break;
case LUA_TLIGHTUSERDATA:
modi = 1;
lua_pushlightuserdata(dest, lua_touserdata(src, -1));
break;
default:
printf("unknown type %i\n",lua_type(src, -1));
lua_pushnil(dest);
break;
}
int tidx = lua_gettop(dest);
int aa = lua_gettop(src);
if(modi&&!skip_meta&&lua_getmetatable(src, -1)){
luaI_deepcopy(src, dest, seen, 1);
lua_setmetatable(dest, tidx);
lua_settop(dest, tidx);
}
lua_settop(src, aa);
if(wnull) parray_clear(seen, FREE);
_seen = seen;
}
/**
* @brief extracts a table to be global
*
* @param {lua_State*} source
*/
void lua_set_global_table(lua_State* L){
lua_pushnil(L);
for(;lua_next(L, -2) != 0;){
lua_setglobal(L, lua_tostring(L, -2));
}
}
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