lua_Type is private (preparation for tags)

This commit is contained in:
Roberto Ierusalimschy 1997-02-20 12:51:14 -03:00
parent 0b110f7922
commit 6769f34817
3 changed files with 53 additions and 43 deletions

35
lua.h
View File

@ -2,7 +2,7 @@
** LUA - Linguagem para Usuarios de Aplicacao
** Grupo de Tecnologia em Computacao Grafica
** TeCGraf - PUC-Rio
** $Id: lua.h,v 3.32 1996/11/20 13:49:32 roberto Exp roberto $
** $Id: lua.h,v 3.33 1997/02/11 11:40:01 roberto Exp roberto $
*/
@ -14,25 +14,6 @@
#define LUA_AUTHORS "W. Celes, R. Ierusalimschy & L. H. de Figueiredo"
/* Private Part */
typedef enum
{
LUA_T_NIL = -1,
LUA_T_NUMBER = -2,
LUA_T_STRING = -3,
LUA_T_ARRAY = -4,
LUA_T_FUNCTION = -5,
LUA_T_CFUNCTION= -6,
LUA_T_MARK = -7,
LUA_T_CMARK = -8,
LUA_T_LINE = -9,
LUA_T_USERDATA = 0
} lua_Type;
/* Public Part */
#define LUA_NOOBJECT 0
typedef void (*lua_CFunction) (void);
@ -52,10 +33,10 @@ void lua_endblock (void);
lua_Object lua_getparam (int number);
#define lua_getresult(_) lua_getparam(_)
#define lua_isnil(_) (lua_type(_)==LUA_T_NIL)
#define lua_istable(_) (lua_type(_)==LUA_T_ARRAY)
#define lua_isuserdata(_) (lua_type(_)>=LUA_T_USERDATA)
#define lua_iscfunction(_) (lua_type(_)==LUA_T_CFUNCTION)
int lua_isnil (lua_Object object);
int lua_istable (lua_Object object);
int lua_isuserdata (lua_Object object);
int lua_iscfunction (lua_Object object);
int lua_isnumber (lua_Object object);
int lua_isstring (lua_Object object);
int lua_isfunction (lua_Object object);
@ -65,7 +46,6 @@ char *lua_getstring (lua_Object object);
lua_CFunction lua_getcfunction (lua_Object object);
void *lua_getbinarydata (lua_Object object);
int lua_getbindatasize (lua_Object object);
void *lua_getuserdata (lua_Object object);
void lua_pushnil (void);
void lua_pushnumber (float n);
@ -98,11 +78,14 @@ lua_Object lua_createtable (void);
#define lua_register(n,f) (lua_pushcfunction(f), lua_storeglobal(n))
#define lua_pushuserdata(u) lua_pushusertag(u, LUA_T_USERDATA)
#define lua_pushuserdata(u) lua_pushusertag(u, 0)
/* for compatibility with old versions. Avoid using these macros */
#define lua_getuserdata(o) (*(void **)lua_getbinarydata(o))
#define lua_lockobject(o) lua_refobject(o,1)
#define lua_lock() lua_ref(1)
#define lua_getlocked lua_getref

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@ -3,7 +3,7 @@
** TecCGraf - PUC-Rio
*/
char *rcs_opcode="$Id: opcode.c,v 3.79 1997/01/31 14:27:11 roberto Exp roberto $";
char *rcs_opcode="$Id: opcode.c,v 3.80 1997/02/11 11:35:05 roberto Exp roberto $";
#include <setjmp.h>
#include <stdio.h>
@ -671,20 +671,41 @@ lua_Object lua_getparam (int number)
return CLS_current.base-CLS_current.num+number;
}
int lua_isnumber (lua_Object object)
int lua_isnil (lua_Object o)
{
return (object != LUA_NOOBJECT) && (tonumber(Address(object)) == 0);
return (o!= LUA_NOOBJECT) && (tag(Address(o)) == LUA_T_NIL);
}
int lua_isstring (lua_Object object)
int lua_istable (lua_Object o)
{
int t = lua_type(object);
return (o!= LUA_NOOBJECT) && (tag(Address(o)) == LUA_T_ARRAY);
}
int lua_isuserdata (lua_Object o)
{
return (o!= LUA_NOOBJECT) && (tag(Address(o)) == LUA_T_USERDATA);
}
int lua_iscfunction (lua_Object o)
{
int t = lua_type(o);
return (t == LUA_T_CMARK) || (t == LUA_T_CFUNCTION);
}
int lua_isnumber (lua_Object o)
{
return (o!= LUA_NOOBJECT) && (tonumber(Address(o)) == 0);
}
int lua_isstring (lua_Object o)
{
int t = lua_type(o);
return (t == LUA_T_STRING) || (t == LUA_T_NUMBER);
}
int lua_isfunction (lua_Object object)
int lua_isfunction (lua_Object o)
{
int t = lua_type(object);
int t = lua_type(o);
return (t == LUA_T_FUNCTION) || (t == LUA_T_CFUNCTION) ||
(t == LUA_T_MARK) || (t == LUA_T_CMARK);
}
@ -734,14 +755,6 @@ lua_CFunction lua_getcfunction (lua_Object object)
else return (fvalue(Address(object)));
}
/*
** Given an object handle, return its user data. On error, return NULL.
*/
void *lua_getuserdata (lua_Object object)
{
return *(void **)lua_getbinarydata(object);
}
lua_Object lua_getref (int ref)
{
@ -888,7 +901,7 @@ int lua_type (lua_Object o)
lua_Type t = tag(Address(o));
if (t == LUA_T_USERDATA)
return (Address(o))->value.ts->tag;
else return tag(Address(o));
else return t;
}
}

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@ -1,6 +1,6 @@
/*
** TeCGraf - PUC-Rio
** $Id: opcode.h,v 3.24 1996/11/01 12:46:59 roberto Exp roberto $
** $Id: opcode.h,v 3.25 1997/02/11 11:35:05 roberto Exp roberto $
*/
#ifndef opcode_h
@ -14,6 +14,20 @@
#define FIELDS_PER_FLUSH 40
typedef enum
{
LUA_T_NIL = -1,
LUA_T_NUMBER = -2,
LUA_T_STRING = -3,
LUA_T_ARRAY = -4, /* array==table */
LUA_T_FUNCTION = -5,
LUA_T_CFUNCTION= -6,
LUA_T_MARK = -7,
LUA_T_CMARK = -8,
LUA_T_LINE = -9,
LUA_T_USERDATA = 0
} lua_Type;
typedef enum {
/* name parm before after side effect