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new version of debug system

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This commit is contained in:
Roberto Ierusalimschy 2000-06-26 16:28:31 -03:00
parent b69e712713
commit afef009fce
15 changed files with 201 additions and 159 deletions
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74
ldebug.c
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@ -1,5 +1,5 @@
/*
** $Id: ldebug.c,v 1.22 2000/06/08 17:48:31 roberto Exp roberto $
** $Id: ldebug.c,v 1.23 2000/06/12 13:52:05 roberto Exp roberto $
** Debug Interface
** See Copyright Notice in lua.h
*/
@ -23,22 +23,21 @@
#include "luadebug.h"
static const lua_Type normtype[] = { /* ORDER LUA_T */
TAG_USERDATA, TAG_NUMBER, TAG_STRING, TAG_TABLE,
TAG_LCLOSURE, TAG_CCLOSURE, TAG_NIL,
TAG_LCLOSURE, TAG_CCLOSURE /* TAG_LMARK, TAG_CMARK */
};
static void setnormalized (TObject *d, const TObject *s) {
d->value = s->value;
d->ttype = normtype[ttype(s)];
}
static int hasdebuginfo (lua_State *L, StkId f) {
return (f+1 < L->top && (f+1)->ttype == TAG_LINE);
switch (s->ttype) {
case TAG_CMARK: {
clvalue(d) = clvalue(s);
ttype(d) = TAG_CCLOSURE;
break;
}
case TAG_LMARK: {
clvalue(d) = infovalue(s)->func;
ttype(d) = TAG_LCLOSURE;
break;
}
default: *d = *s;
}
}
@ -88,22 +87,35 @@ int lua_getstack (lua_State *L, int level, lua_Debug *ar) {
static int lua_nups (StkId f) {
switch (ttype(f)) {
case TAG_LCLOSURE: case TAG_CCLOSURE:
case TAG_LMARK: case TAG_CMARK:
case TAG_LCLOSURE: case TAG_CCLOSURE: case TAG_CMARK:
return clvalue(f)->nupvalues;
case TAG_LMARK:
return infovalue(f)->func->nupvalues;
default:
return 0;
}
}
static int lua_currentline (lua_State *L, StkId f) {
return hasdebuginfo(L, f) ? (f+1)->value.i : -1;
static int lua_currentline (StkId f) {
if (ttype(f) != TAG_LMARK)
return -1; /* only active lua functions have current-line information */
else {
CallInfo *ci = infovalue(f);
int *lines = ci->func->f.l->lines;
if (!lines) return -1; /* no static debug information */
else return lines[ci->pc];
}
}
static int lua_currentpc (StkId f) {
return infovalue(f)->pc;
}
static Proto *getluaproto (StkId f) {
return (ttype(f) == TAG_LMARK) ? clvalue(f)->f.l : NULL;
return (ttype(f) == TAG_LMARK) ? infovalue(f)->func->f.l : NULL;
}
@ -111,12 +123,9 @@ int lua_getlocal (lua_State *L, const lua_Debug *ar, lua_Localvar *v) {
StkId f = ar->_func;
Proto *fp = getluaproto(f);
if (!fp) return 0; /* `f' is not a Lua function? */
v->name = luaF_getlocalname(fp, v->index, lua_currentline(L, f));
v->name = luaF_getlocalname(fp, v->index, lua_currentpc(f));
if (!v->name) return 0;
/* if `name', there must be a TAG_LINE */
/* therefore, f+2 points to function base */
LUA_ASSERT(L, ttype(f+1) == TAG_LINE, "");
v->value = luaA_putluaObject(L, (f+2)+(v->index-1));
v->value = luaA_putluaObject(L, (f+1)+(v->index-1));
return 1;
}
@ -124,22 +133,27 @@ int lua_getlocal (lua_State *L, const lua_Debug *ar, lua_Localvar *v) {
int lua_setlocal (lua_State *L, const lua_Debug *ar, lua_Localvar *v) {
StkId f = ar->_func;
Proto *fp = getluaproto(f);
UNUSED(L);
if (!fp) return 0; /* `f' is not a Lua function? */
v->name = luaF_getlocalname(fp, v->index, lua_currentline(L, f));
v->name = luaF_getlocalname(fp, v->index, lua_currentpc(f));
if (!v->name || v->name[0] == '*') return 0; /* `*' starts private locals */
LUA_ASSERT(L, ttype(f+1) == TAG_LINE, "");
*((f+2)+(v->index-1)) = *v->value;
*((f+1)+(v->index-1)) = *v->value;
return 1;
}
static void lua_funcinfo (lua_Debug *ar, StkId func) {
switch (ttype(func)) {
case TAG_LCLOSURE: case TAG_LMARK:
case TAG_LCLOSURE:
ar->source = clvalue(func)->f.l->source->str;
ar->linedefined = clvalue(func)->f.l->lineDefined;
ar->what = "Lua";
break;
case TAG_LMARK:
ar->source = infovalue(func)->func->f.l->source->str;
ar->linedefined = infovalue(func)->func->f.l->lineDefined;
ar->what = "Lua";
break;
case TAG_CCLOSURE: case TAG_CMARK:
ar->source = "(C)";
ar->linedefined = -1;
@ -191,7 +205,7 @@ int lua_getinfo (lua_State *L, const char *what, lua_Debug *ar) {
lua_funcinfo(ar, func);
break;
case 'l':
ar->currentline = lua_currentline(L, func);
ar->currentline = lua_currentline(func);
break;
case 'u':
ar->nups = lua_nups(func);