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new #define LUA_COMPAT2_5 to select "compatibility mode".

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This commit is contained in:
Roberto Ierusalimschy 1997-06-23 15:27:53 -03:00
parent 3e43275308
commit e81f184164
5 changed files with 36 additions and 24 deletions
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7
fallback.c
View File

@ -3,7 +3,7 @@
** TecCGraf - PUC-Rio
*/
char *rcs_fallback="$Id: fallback.c,v 2.7 1997/06/16 18:43:19 roberto Exp roberto $";
char *rcs_fallback="$Id: fallback.c,v 2.8 1997/06/17 17:27:07 roberto Exp roberto $";
#include <stdio.h>
#include <string.h>
@ -281,7 +281,7 @@ char *luaI_travfallbacks (int (*fn)(TObject *))
* ===================================================================
* compatibility with old fallback system
*/
#if LUA_COMPAT2_5
static void errorFB (void)
{
@ -310,6 +310,7 @@ static void fillvalids (IMS e, TObject *func)
*luaI_getim(t, e) = *func;
}
void luaI_setfallback (void)
{
static char *oldnames [] = {"error", "getglobal", "arith", "order", NULL};
@ -364,4 +365,4 @@ void luaI_setfallback (void)
else
lua_pushcfunction(replace);
}
#endif

4
inout.c
View File

@ -5,7 +5,7 @@
** Also provides some predefined lua functions.
*/
char *rcs_inout="$Id: inout.c,v 2.65 1997/06/19 18:49:40 roberto Exp roberto $";
char *rcs_inout="$Id: inout.c,v 2.66 1997/06/20 19:19:09 roberto Exp roberto $";
#include <stdio.h>
#include <string.h>
@ -377,7 +377,9 @@ static struct {
{"rawsetglobal", luaI_rawsetglobal},
{"rawsettable", rawsettable},
{"seterrormethod", luaI_seterrormethod},
#if LUA_COMPAT2_5
{"setfallback", luaI_setfallback},
#endif
{"setglobal", luaI_setglobal},
{"settagmethod", luaI_settagmethod},
{"gettagmethod", luaI_gettagmethod},

17
lua.h
View File

@ -2,7 +2,7 @@
** LUA - An Extensible Extension Language
** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil
** e-mail: lua@tecgraf.puc-rio.br
** $Id: lua.h,v 4.9 1997/06/18 21:20:45 roberto Exp roberto $
** $Id: lua.h,v 4.10 1997/06/19 18:03:04 roberto Exp roberto $
*/
@ -102,13 +102,18 @@ long lua_collectgarbage (long limit);
/* If your program has no compatibility problems, you can change
** this to 0
/* ==========================================================================
** for compatibility with old versions. Avoid using these macros/functions
** If your program does not use any of these, define LUA_COMPAT2_5 to 0
*/
#if 1
/* =============================================================== */
/* for compatibility with old versions. Avoid using these macros/functions */
#ifndef LUA_COMPAT2_5
#define LUA_COMPAT2_5 1
#endif
#if LUA_COMPAT2_5
lua_Object lua_setfallback (char *event, lua_CFunction fallback);

4
makefile
View File

@ -1,4 +1,4 @@
# $Id: makefile,v 1.34 1997/06/11 18:57:00 roberto Exp roberto $
# $Id: makefile,v 1.35 1997/06/16 16:50:22 roberto Exp roberto $
#configuration
@ -6,6 +6,8 @@
# define (undefine) _POSIX_SOURCE if your system is (not) POSIX compliant
#define (undefine) NOSTRERROR if your system does NOT have function "strerror"
# (although this is ANSI, SunOS does not comply; so, add "-DNOSTRERROR" on SunOS)
# define LUA_COMPAT2_5=0 if yous system does not need to be compatible with
# version 2.5 (or older)
CONFIG = -DPOPEN -D_POSIX_SOURCE
# Compilation parameters
CC = gcc

28
opcode.c
View File

@ -3,7 +3,7 @@
** TecCGraf - PUC-Rio
*/
char *rcs_opcode="$Id: opcode.c,v 4.12 1997/06/19 17:46:12 roberto Exp roberto $";
char *rcs_opcode="$Id: opcode.c,v 4.13 1997/06/19 18:03:04 roberto Exp roberto $";
#include <setjmp.h>
#include <stdio.h>
@ -325,7 +325,7 @@ static void do_call (StkId base, int nResults)
firstResult = lua_execute(func->value.tf->code, base);
}
else { /* func is not a function */
/* Check the fallback for invalid functions */
/* Check the tag method for invalid functions */
TObject *im = luaI_getimbyObj(func, IM_FUNCTION);
if (ttype(im) == LUA_T_NIL)
lua_error("call expression not a function");
@ -635,17 +635,6 @@ int lua_callfunction (lua_Object function)
}
/*
** API: set a function as a fallback
*/
lua_Object lua_setfallback (char *name, lua_CFunction fallback)
{
lua_pushstring(name);
lua_pushcfunction(fallback);
do_unprotectedrun(luaI_setfallback, 2, 1);
return put_luaObjectonTop();
}
lua_Object lua_gettagmethod (int tag, char *event)
{
lua_pushnumber(tag);
@ -1471,3 +1460,16 @@ static StkId lua_execute (Byte *pc, StkId base)
}
}
#if COMPAT2_5
/*
** API: set a function as a fallback
*/
lua_Object lua_setfallback (char *name, lua_CFunction fallback)
{
lua_pushstring(name);
lua_pushcfunction(fallback);
do_unprotectedrun(luaI_setfallback, 2, 1);
return put_luaObjectonTop();
}
#endif