Lua 5.1f: How to dump stack contents from C?

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Lua 5.1f: How to dump stack contents from C?

joe rossi
I'm using Lua 5.1 final, and I need a stack dump function.  What I came up with doesn't seem to print accurately, or anything at all.  Does anyone know how I might change this to make it work ? It's very difficult for me to work if I cannot see my Lua error messages:


static void stackDump (lua_State *L) {
      int i=lua_gettop(L);
      printf(" ----------------  Stack Dump ----------------" );
      while(  i   ) {
        int t = lua_type(L, i);
        switch (t) {
          case LUA_TSTRING:
            printf("%d:`%s'", i, lua_tostring(L, i));
          break;
          case LUA_TBOOLEAN:
            printf("%d: %s",i,lua_toboolean(L, i) ? "true" : "false");
          break;
          case LUA_TNUMBER:
            printf("%d: %g",  i, lua_tonumber(L, i));
         break;
         default: printf("%d: %s", i, lua_typename(L, t)); break;
        }
       i--;
      }
     printf("--------------- Stack Dump Finished ---------------" );
}


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Re: Lua 5.1f: How to dump stack contents from C?

Achromat
is that what u like ?
 

int CLuaCallBacks::_print(lua_State *lua)//DirectCallFunction
{
lua_pushlightuserdata(lua, pid);
lua_gettable(lua, LUA_REGISTRYINDEX);
CLuaScript *pThis = (CLuaScript *)lua_touserdata(lua, -1);

if(!pThis) return 0;
int n = lua_gettop(lua); //number of arguments
for (int i = 1; i < n; i++)
{
pThis->Print("%s\r\n",lua_tostring(lua, i));
}
return 0;
}

----- Original Message -----
Sent: Saturday, March 11, 2006 11:04 PM
Subject: Lua 5.1f: How to dump stack contents from C?

I'm using Lua 5.1 final, and I need a stack dump function.  What I came up with doesn't seem to print accurately, or anything at all.  Does anyone know how I might change this to make it work ? It's very difficult for me to work if I cannot see my Lua error messages:


static void stackDump (lua_State *L) {
      int i=lua_gettop(L);
      printf(" ----------------  Stack Dump ----------------" );
      while(  i   ) {
        int t = lua_type(L, i);
        switch (t) {
          case LUA_TSTRING:
            printf("%d:`%s'", i, lua_tostring(L, i));
          break;
          case LUA_TBOOLEAN:
            printf("%d: %s",i,lua_toboolean(L, i) ? "true" : "false");
          break;
          case LUA_TNUMBER:
            printf("%d: %g",  i, lua_tonumber(L, i));
         break;
         default: printf("%d: %s", i, lua_typename(L, t)); break;
        }
       i--;
      }
     printf("--------------- Stack Dump Finished ---------------" );
}


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Re: Lua 5.1f: How to dump stack contents from C?

David Morris-Oliveros-2
This won't work 100%. Namely, it won't do boolean values (since they can't be coerced), and also, you modify the stack if there's a number that's converted to a string.

// David Morris-Oliveros
// Camera & Lua Coder
// [hidden email]



Karsten Schulz wrote:
is that what u like ?
int CLuaCallBacks::_print(lua_State *lua)//DirectCallFunction
{
lua_pushlightuserdata(lua, pid);
lua_gettable(lua, LUA_REGISTRYINDEX);
CLuaScript *pThis = (CLuaScript *)lua_touserdata(lua, -1);

if(!pThis) return 0;
int n = lua_gettop(lua); //number of arguments
for (int i = 1; i < n; i++)
{
pThis->Print("%s\r\n",lua_tostring(lua, i));
}
return 0;
}

    ----- Original Message -----
    *From:* joe rossi <[hidden email]>
    *To:* [hidden email]
    <[hidden email]>
    *Sent:* Saturday, March 11, 2006 11:04 PM
    *Subject:* Lua 5.1f: How to dump stack contents from C?

    I'm using Lua 5.1 final, and I need a stack dump function.  What I
    came up with doesn't seem to print accurately, or anything at
    all.  Does anyone know how I might change this to make it work ?
    It's very difficult for me to work if I cannot see my Lua error
    messages:


    static void stackDump (lua_State *L) {
          int i=lua_gettop(L);
          printf(" ----------------  Stack Dump ----------------" );
          while(  i   ) {
            int t = lua_type(L, i);
            switch (t) {
              case LUA_TSTRING:
                printf("%d:`%s'", i, lua_tostring(L, i));
              break;
              case LUA_TBOOLEAN:
                printf("%d: %s",i,lua_toboolean(L, i) ? "true" : "false");
              break;
              case LUA_TNUMBER:
                printf("%d: %g",  i, lua_tonumber(L, i));
             break;
             default: printf("%d: %s", i, lua_typename(L, t)); break;
            }
           i--;
          }
         printf("--------------- Stack Dump Finished ---------------" );
    }

    ------------------------------------------------------------------------
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