From 198be23f36466496228bdbceac2d4b8c01e3c21c Mon Sep 17 00:00:00 2001 From: Roberto Ierusalimschy Date: Thu, 8 May 2008 12:44:51 -0300 Subject: added structure for local-variable information to allow extra checkings if needed --- lparser.h | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'lparser.h') diff --git a/lparser.h b/lparser.h index 7e1d487d..0e06b1ad 100644 --- a/lparser.h +++ b/lparser.h @@ -1,5 +1,5 @@ /* -** $Id: lparser.h,v 1.56 2005/10/03 14:02:40 roberto Exp roberto $ +** $Id: lparser.h,v 1.57 2006/03/09 18:14:31 roberto Exp roberto $ ** Lua Parser ** See Copyright Notice in lua.h */ @@ -23,8 +23,8 @@ typedef enum { VFALSE, VK, /* info = index of constant in `k' */ VKNUM, /* nval = numerical value */ - VLOCAL, /* info = local register */ - VUPVAL, /* info = index of upvalue in `upvalues' */ + VLOCAL, /* info = local register; aux = read only */ + VUPVAL, /* info = index of upvalue in 'upvalues'; aux = read only */ VGLOBAL, /* info = index of table; aux = index of global name in `k' */ VINDEXED, /* info = table register; aux = index register (or `k') */ VJMP, /* info = instruction pc */ @@ -34,6 +34,7 @@ typedef enum { VVARARG /* info = instruction pc */ } expkind; + typedef struct expdesc { expkind k; union { @@ -51,6 +52,11 @@ typedef struct upvaldesc { } upvaldesc; +typedef struct vardesc { + unsigned short idx; +} vardesc; + + struct BlockCnt; /* defined in lparser.c */ @@ -71,7 +77,7 @@ typedef struct FuncState { short nlocvars; /* number of elements in `locvars' */ lu_byte nactvar; /* number of active local variables */ upvaldesc upvalues[LUAI_MAXUPVALUES]; /* upvalues */ - unsigned short actvar[LUAI_MAXVARS]; /* declared-variable stack */ + vardesc actvar[LUAI_MAXVARS]; /* declared-variable stack */ } FuncState; -- cgit v1.2.3-55-g6feb