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thead-specific state separated from "global" state

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This commit is contained in:
Roberto Ierusalimschy 2001-01-19 11:20:30 -02:00
parent f2c451d745
commit 4ac58853dc
19 changed files with 268 additions and 257 deletions
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50
lapi.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: lapi.c,v 1.116 2001/01/10 18:56:11 roberto Exp roberto $ ** $Id: lapi.c,v 1.117 2001/01/18 15:59:09 roberto Exp roberto $
** Lua API ** Lua API
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -230,7 +230,7 @@ LUA_API void lua_pushcclosure (lua_State *L, lua_CFunction fn, int n) {
LUA_API void lua_pushusertag (lua_State *L, void *u, int tag) { LUA_API void lua_pushusertag (lua_State *L, void *u, int tag) {
/* ORDER LUA_T */ /* ORDER LUA_T */
if (!(tag == LUA_ANYTAG || tag == LUA_TUSERDATA || validtag(tag))) if (!(tag == LUA_ANYTAG || tag == LUA_TUSERDATA || validtag(G(L), tag)))
luaO_verror(L, "invalid tag for a userdata (%d)", tag); luaO_verror(L, "invalid tag for a userdata (%d)", tag);
setuvalue(L->top, luaS_createudata(L, u, tag)); setuvalue(L->top, luaS_createudata(L, u, tag));
api_incr_top(L); api_incr_top(L);
@ -261,14 +261,14 @@ LUA_API void lua_gettable (lua_State *L, int index) {
LUA_API void lua_rawget (lua_State *L, int index) { LUA_API void lua_rawget (lua_State *L, int index) {
StkId t = Index(L, index); StkId t = Index(L, index);
LUA_ASSERT(ttype(t) == LUA_TTABLE, "table expected"); lua_assert(ttype(t) == LUA_TTABLE);
setobj(L->top - 1, luaH_get(hvalue(t), L->top - 1)); setobj(L->top - 1, luaH_get(hvalue(t), L->top - 1));
} }
LUA_API void lua_rawgeti (lua_State *L, int index, int n) { LUA_API void lua_rawgeti (lua_State *L, int index, int n) {
StkId o = Index(L, index); StkId o = Index(L, index);
LUA_ASSERT(ttype(o) == LUA_TTABLE, "table expected"); lua_assert(ttype(o) == LUA_TTABLE);
setobj(L->top, luaH_getnum(hvalue(o), n)); setobj(L->top, luaH_getnum(hvalue(o), n));
api_incr_top(L); api_incr_top(L);
} }
@ -284,9 +284,9 @@ LUA_API int lua_getref (lua_State *L, int ref) {
if (ref == LUA_REFNIL) { if (ref == LUA_REFNIL) {
setnilvalue(L->top); setnilvalue(L->top);
} }
else if (0 <= ref && ref < L->nref && else if (0 <= ref && ref < G(L)->nref &&
(L->refArray[ref].st == LOCK || L->refArray[ref].st == HOLD)) { (G(L)->refArray[ref].st == LOCK || G(L)->refArray[ref].st == HOLD)) {
setobj(L->top, &L->refArray[ref].o); setobj(L->top, &G(L)->refArray[ref].o);
} }
else else
return 0; return 0;
@ -324,7 +324,7 @@ LUA_API void lua_settable (lua_State *L, int index) {
LUA_API void lua_rawset (lua_State *L, int index) { LUA_API void lua_rawset (lua_State *L, int index) {
StkId t = Index(L, index); StkId t = Index(L, index);
LUA_ASSERT(ttype(t) == LUA_TTABLE, "table expected"); lua_assert(ttype(t) == LUA_TTABLE);
setobj(luaH_set(L, hvalue(t), L->top-2), (L->top-1)); setobj(luaH_set(L, hvalue(t), L->top-2), (L->top-1));
L->top -= 2; L->top -= 2;
} }
@ -332,7 +332,7 @@ LUA_API void lua_rawset (lua_State *L, int index) {
LUA_API void lua_rawseti (lua_State *L, int index, int n) { LUA_API void lua_rawseti (lua_State *L, int index, int n) {
StkId o = Index(L, index); StkId o = Index(L, index);
LUA_ASSERT(ttype(o) == LUA_TTABLE, "table expected"); lua_assert(ttype(o) == LUA_TTABLE);
setobj(luaH_setnum(L, hvalue(o), n), (L->top-1)); setobj(luaH_setnum(L, hvalue(o), n), (L->top-1));
L->top--; L->top--;
} }
@ -340,7 +340,7 @@ LUA_API void lua_rawseti (lua_State *L, int index, int n) {
LUA_API void lua_setglobals (lua_State *L) { LUA_API void lua_setglobals (lua_State *L) {
StkId newtable = --L->top; StkId newtable = --L->top;
LUA_ASSERT(ttype(newtable) == LUA_TTABLE, "table expected"); lua_assert(ttype(newtable) == LUA_TTABLE);
L->gt = hvalue(newtable); L->gt = hvalue(newtable);
} }
@ -350,17 +350,17 @@ LUA_API int lua_ref (lua_State *L, int lock) {
if (ttype(L->top-1) == LUA_TNIL) if (ttype(L->top-1) == LUA_TNIL)
ref = LUA_REFNIL; ref = LUA_REFNIL;
else { else {
if (L->refFree != NONEXT) { /* is there a free place? */ if (G(L)->refFree != NONEXT) { /* is there a free place? */
ref = L->refFree; ref = G(L)->refFree;
L->refFree = L->refArray[ref].st; G(L)->refFree = G(L)->refArray[ref].st;
} }
else { /* no more free places */ else { /* no more free places */
luaM_growvector(L, L->refArray, L->nref, L->sizeref, struct Ref, luaM_growvector(L, G(L)->refArray, G(L)->nref, G(L)->sizeref, struct Ref,
MAX_INT, "reference table overflow"); MAX_INT, "reference table overflow");
ref = L->nref++; ref = G(L)->nref++;
} }
setobj(&L->refArray[ref].o, L->top-1); setobj(&G(L)->refArray[ref].o, L->top-1);
L->refArray[ref].st = lock ? LOCK : HOLD; G(L)->refArray[ref].st = lock ? LOCK : HOLD;
} }
L->top--; L->top--;
return ref; return ref;
@ -386,18 +386,18 @@ LUA_API void lua_rawcall (lua_State *L, int nargs, int nresults) {
#define GCunscale(x) ((mem_int)(x)<<10) #define GCunscale(x) ((mem_int)(x)<<10)
LUA_API int lua_getgcthreshold (lua_State *L) { LUA_API int lua_getgcthreshold (lua_State *L) {
return GCscale(L->GCthreshold); return GCscale(G(L)->GCthreshold);
} }
LUA_API int lua_getgccount (lua_State *L) { LUA_API int lua_getgccount (lua_State *L) {
return GCscale(L->nblocks); return GCscale(G(L)->nblocks);
} }
LUA_API void lua_setgcthreshold (lua_State *L, int newthreshold) { LUA_API void lua_setgcthreshold (lua_State *L, int newthreshold) {
if (newthreshold > GCscale(ULONG_MAX)) if (newthreshold > GCscale(ULONG_MAX))
L->GCthreshold = ULONG_MAX; G(L)->GCthreshold = ULONG_MAX;
else else
L->GCthreshold = GCunscale(newthreshold); G(L)->GCthreshold = GCunscale(newthreshold);
luaC_checkGC(L); luaC_checkGC(L);
} }
@ -424,9 +424,9 @@ LUA_API void lua_settag (lua_State *L, int tag) {
LUA_API void lua_unref (lua_State *L, int ref) { LUA_API void lua_unref (lua_State *L, int ref) {
if (ref >= 0) { if (ref >= 0) {
LUA_ASSERT(ref < L->nref && L->refArray[ref].st < 0, "invalid ref"); lua_assert(ref < G(L)->nref && G(L)->refArray[ref].st < 0);
L->refArray[ref].st = L->refFree; G(L)->refArray[ref].st = G(L)->refFree;
L->refFree = ref; G(L)->refFree = ref;
} }
} }
@ -434,7 +434,7 @@ LUA_API void lua_unref (lua_State *L, int ref) {
LUA_API int lua_next (lua_State *L, int index) { LUA_API int lua_next (lua_State *L, int index) {
StkId t = luaA_index(L, index); StkId t = luaA_index(L, index);
Node *n; Node *n;
LUA_ASSERT(ttype(t) == LUA_TTABLE, "table expected"); lua_assert(ttype(t) == LUA_TTABLE);
n = luaH_next(L, hvalue(t), luaA_index(L, -1)); n = luaH_next(L, hvalue(t), luaA_index(L, -1));
if (n) { if (n) {
setobj(L->top-1, key(n)); setobj(L->top-1, key(n));

16
lcode.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: lcode.c,v 1.55 2000/12/28 12:55:41 roberto Exp roberto $ ** $Id: lcode.c,v 1.56 2001/01/15 16:13:24 roberto Exp roberto $
** Code generator for Lua ** Code generator for Lua
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -189,7 +189,7 @@ void luaK_storevar (LexState *ls, const expdesc *var) {
luaK_code2(fs, OP_SETTABLE, 3, 3); luaK_code2(fs, OP_SETTABLE, 3, 3);
break; break;
default: default:
LUA_INTERNALERROR("invalid var kind to store"); lua_assert(0); /* invalid var kind to store */
} }
} }
@ -205,7 +205,7 @@ static OpCode invertjump (OpCode op) {
case OP_JMPT: case OP_JMPONT: return OP_JMPF; case OP_JMPT: case OP_JMPONT: return OP_JMPF;
case OP_JMPF: case OP_JMPONF: return OP_JMPT; case OP_JMPF: case OP_JMPONF: return OP_JMPT;
default: default:
LUA_INTERNALERROR("invalid jump instruction"); lua_assert(0); /* invalid jump instruction */
return OP_JMP; /* to avoid warnings */ return OP_JMP; /* to avoid warnings */
} }
} }
@ -280,7 +280,7 @@ static void luaK_testgo (FuncState *fs, expdesc *v, int invert, OpCode jump) {
discharge1(fs, v); discharge1(fs, v);
prevpos = fs->pc-1; prevpos = fs->pc-1;
previous = &fs->f->code[prevpos]; previous = &fs->f->code[prevpos];
LUA_ASSERT(*previous==previous_instruction(fs), "no jump allowed here"); lua_assert(*previous==previous_instruction(fs)); /* no jump allowed here */
if (!ISJUMP(GET_OPCODE(*previous))) if (!ISJUMP(GET_OPCODE(*previous)))
prevpos = luaK_code1(fs, jump, NO_JUMP); prevpos = luaK_code1(fs, jump, NO_JUMP);
else { /* last instruction is already a jump */ else { /* last instruction is already a jump */
@ -398,14 +398,14 @@ void luaK_posfix (LexState *ls, BinOpr op, expdesc *v1, expdesc *v2) {
FuncState *fs = ls->fs; FuncState *fs = ls->fs;
switch (op) { switch (op) {
case OPR_AND: { case OPR_AND: {
LUA_ASSERT(v1->u.l.t == NO_JUMP, "list must be closed"); lua_assert(v1->u.l.t == NO_JUMP); /* list must be closed */
discharge1(fs, v2); discharge1(fs, v2);
v1->u.l.t = v2->u.l.t; v1->u.l.t = v2->u.l.t;
luaK_concat(fs, &v1->u.l.f, v2->u.l.f); luaK_concat(fs, &v1->u.l.f, v2->u.l.f);
break; break;
} }
case OPR_OR: { case OPR_OR: {
LUA_ASSERT(v1->u.l.f == NO_JUMP, "list must be closed"); lua_assert(v1->u.l.f == NO_JUMP); /* list must be closed */
discharge1(fs, v2); discharge1(fs, v2);
v1->u.l.f = v2->u.l.f; v1->u.l.f = v2->u.l.f;
luaK_concat(fs, &v1->u.l.t, v2->u.l.t); luaK_concat(fs, &v1->u.l.t, v2->u.l.t);
@ -622,11 +622,11 @@ int luaK_code2 (FuncState *fs, OpCode o, int arg1, int arg2) {
case OP_GETINDEXED: case OP_GETINDEXED:
case OP_TAILCALL: case OP_TAILCALL:
case OP_ADDI: { case OP_ADDI: {
LUA_INTERNALERROR("instruction used only for optimizations"); lua_assert(0); /* instruction used only for optimizations */
break; break;
} }
default: { default: {
LUA_ASSERT(delta != VD, "invalid delta"); lua_assert(delta != VD);
break; break;
} }
} }

37
ldebug.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: ldebug.c,v 1.52 2000/12/26 18:46:09 roberto Exp roberto $ ** $Id: ldebug.c,v 1.53 2001/01/18 15:59:09 roberto Exp roberto $
** Debug Interface ** Debug Interface
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -96,20 +96,20 @@ int luaG_getline (int *lineinfo, int pc, int refline, int *prefi) {
refi = prefi ? *prefi : 0; refi = prefi ? *prefi : 0;
if (lineinfo[refi] < 0) if (lineinfo[refi] < 0)
refline += -lineinfo[refi++]; refline += -lineinfo[refi++];
LUA_ASSERT(lineinfo[refi] >= 0, "invalid line info"); lua_assert(lineinfo[refi] >= 0);
while (lineinfo[refi] > pc) { while (lineinfo[refi] > pc) {
refline--; refline--;
refi--; refi--;
if (lineinfo[refi] < 0) if (lineinfo[refi] < 0)
refline -= -lineinfo[refi--]; refline -= -lineinfo[refi--];
LUA_ASSERT(lineinfo[refi] >= 0, "invalid line info"); lua_assert(lineinfo[refi] >= 0);
} }
for (;;) { for (;;) {
int nextline = refline + 1; int nextline = refline + 1;
int nextref = refi + 1; int nextref = refi + 1;
if (lineinfo[nextref] < 0) if (lineinfo[nextref] < 0)
nextline += -lineinfo[nextref++]; nextline += -lineinfo[nextref++];
LUA_ASSERT(lineinfo[nextref] >= 0, "invalid line info"); lua_assert(lineinfo[nextref] >= 0);
if (lineinfo[nextref] > pc) if (lineinfo[nextref] > pc)
break; break;
refline = nextline; refline = nextline;
@ -122,7 +122,7 @@ int luaG_getline (int *lineinfo, int pc, int refline, int *prefi) {
static int currentpc (StkId f) { static int currentpc (StkId f) {
CallInfo *ci = infovalue(f); CallInfo *ci = infovalue(f);
LUA_ASSERT(isLmark(f), "function has no pc"); lua_assert(isLmark(f));
if (ci->pc) if (ci->pc)
return (*ci->pc - ci->func->f.l->code) - 1; return (*ci->pc - ci->func->f.l->code) - 1;
else else
@ -204,13 +204,13 @@ static void funcinfo (lua_State *L, lua_Debug *ar, StkId func) {
} }
static const char *travtagmethods (lua_State *L, const TObject *o) { static const char *travtagmethods (global_State *G, const TObject *o) {
if (ttype(o) == LUA_TFUNCTION) { if (ttype(o) == LUA_TFUNCTION) {
int e; int e;
for (e=0; e<TM_N; e++) { for (e=0; e<TM_N; e++) {
int t; int t;
for (t=0; t<L->ntag; t++) for (t=0; t<G->ntag; t++)
if (clvalue(o) == luaT_gettm(L, t, e)) if (clvalue(o) == luaT_gettm(G, t, e))
return luaT_eventname[e]; return luaT_eventname[e];
} }
} }
@ -237,7 +237,7 @@ static void getname (lua_State *L, StkId f, lua_Debug *ar) {
if ((ar->name = travglobals(L, &o)) != NULL) if ((ar->name = travglobals(L, &o)) != NULL)
ar->namewhat = "global"; ar->namewhat = "global";
/* not found: try tag methods */ /* not found: try tag methods */
else if ((ar->name = travtagmethods(L, &o)) != NULL) else if ((ar->name = travtagmethods(G(L), &o)) != NULL)
ar->namewhat = "tag-method"; ar->namewhat = "tag-method";
else ar->namewhat = ""; /* not found at all */ else ar->namewhat = ""; /* not found at all */
} }
@ -308,22 +308,22 @@ static Instruction luaG_symbexec (const Proto *pt, int lastpc, int stackpos) {
top++; /* `arg' */ top++; /* `arg' */
while (pc < lastpc) { while (pc < lastpc) {
const Instruction i = code[pc++]; const Instruction i = code[pc++];
LUA_ASSERT(0 <= top && top <= pt->maxstacksize, "wrong stack"); lua_assert(0 <= top && top <= pt->maxstacksize);
switch (GET_OPCODE(i)) { switch (GET_OPCODE(i)) {
case OP_RETURN: { case OP_RETURN: {
LUA_ASSERT(top >= GETARG_U(i), "wrong stack"); lua_assert(top >= GETARG_U(i));
top = GETARG_U(i); top = GETARG_U(i);
break; break;
} }
case OP_TAILCALL: { case OP_TAILCALL: {
LUA_ASSERT(top >= GETARG_A(i), "wrong stack"); lua_assert(top >= GETARG_A(i));
top = GETARG_B(i); top = GETARG_B(i);
break; break;
} }
case OP_CALL: { case OP_CALL: {
int nresults = GETARG_B(i); int nresults = GETARG_B(i);
if (nresults == MULT_RET) nresults = 1; if (nresults == MULT_RET) nresults = 1;
LUA_ASSERT(top >= GETARG_A(i), "wrong stack"); lua_assert(top >= GETARG_A(i));
top = pushpc(stack, pc, GETARG_A(i), nresults); top = pushpc(stack, pc, GETARG_A(i), nresults);
break; break;
} }
@ -368,10 +368,9 @@ static Instruction luaG_symbexec (const Proto *pt, int lastpc, int stackpos) {
} }
default: { default: {
OpCode op = GET_OPCODE(i); OpCode op = GET_OPCODE(i);
LUA_ASSERT(luaK_opproperties[op].push != VD, lua_assert(luaK_opproperties[op].push != VD);
"invalid opcode for default");
top -= (int)luaK_opproperties[op].pop; top -= (int)luaK_opproperties[op].pop;
LUA_ASSERT(top >= 0, "wrong stack"); lua_assert(top >= 0);
top = pushpc(stack, pc, top, luaK_opproperties[op].push); top = pushpc(stack, pc, top, luaK_opproperties[op].push);
} }
} }
@ -389,7 +388,7 @@ static const char *getobjname (lua_State *L, StkId obj, const char **name) {
int pc = currentpc(func); int pc = currentpc(func);
int stackpos = obj - (func+1); /* func+1 == function base */ int stackpos = obj - (func+1); /* func+1 == function base */
Instruction i = luaG_symbexec(p, pc, stackpos); Instruction i = luaG_symbexec(p, pc, stackpos);
LUA_ASSERT(pc != -1, "function must be active"); lua_assert(pc != -1);
switch (GET_OPCODE(i)) { switch (GET_OPCODE(i)) {
case OP_GETGLOBAL: { case OP_GETGLOBAL: {
*name = p->kstr[GETARG_U(i)]->str; *name = p->kstr[GETARG_U(i)]->str;
@ -397,7 +396,7 @@ static const char *getobjname (lua_State *L, StkId obj, const char **name) {
} }
case OP_GETLOCAL: { case OP_GETLOCAL: {
*name = luaF_getlocalname(p, GETARG_U(i)+1, pc); *name = luaF_getlocalname(p, GETARG_U(i)+1, pc);
LUA_ASSERT(*name, "local must exist"); lua_assert(*name);
return "local"; return "local";
} }
case OP_PUSHSELF: case OP_PUSHSELF:
@ -449,7 +448,7 @@ void luaG_typeerror (lua_State *L, StkId o, const char *op) {
void luaG_binerror (lua_State *L, StkId p1, int t, const char *op) { void luaG_binerror (lua_State *L, StkId p1, int t, const char *op) {
if (ttype(p1) == t) p1++; if (ttype(p1) == t) p1++;
LUA_ASSERT(ttype(p1) != t, "must be an error"); lua_assert(ttype(p1) != t);
luaG_typeerror(L, p1, op); luaG_typeerror(L, p1, op);
} }

16
ldo.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: ldo.c,v 1.113 2001/01/10 18:56:11 roberto Exp roberto $ ** $Id: ldo.c,v 1.114 2001/01/18 15:59:09 roberto Exp roberto $
** Stack and Call structure of Lua ** Stack and Call structure of Lua
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -55,7 +55,7 @@ void luaD_checkstack (lua_State *L, int n) {
} }
else { else {
L->stack_last += EXTRA_STACK; /* to be used by error message */ L->stack_last += EXTRA_STACK; /* to be used by error message */
LUA_ASSERT(L->stack_last == L->stack+L->stacksize-1, "wrong stack limit"); lua_assert(L->stack_last == L->stack+L->stacksize-1);
lua_error(L, "stack overflow"); lua_error(L, "stack overflow");
} }
} }
@ -95,7 +95,7 @@ static void dohook (lua_State *L, lua_Debug *ar, lua_Hook hook) {
luaD_checkstack(L, LUA_MINSTACK); /* ensure minimum stack size */ luaD_checkstack(L, LUA_MINSTACK); /* ensure minimum stack size */
L->allowhooks = 0; /* cannot call hooks inside a hook */ L->allowhooks = 0; /* cannot call hooks inside a hook */
(*hook)(L, ar); (*hook)(L, ar);
LUA_ASSERT(L->allowhooks == 0, "invalid allow"); lua_assert(L->allowhooks == 0);
L->allowhooks = 1; L->allowhooks = 1;
L->top = old_top; L->top = old_top;
L->Cbase = old_Cbase; L->Cbase = old_Cbase;
@ -161,7 +161,7 @@ void luaD_call (lua_State *L, StkId func, int nResults) {
Closure *cl; Closure *cl;
if (ttype(func) != LUA_TFUNCTION) { if (ttype(func) != LUA_TFUNCTION) {
/* `func' is not a function; check the `function' tag method */ /* `func' is not a function; check the `function' tag method */
Closure *tm = luaT_gettmbyObj(L, func, TM_FUNCTION); Closure *tm = luaT_gettmbyObj(G(L), func, TM_FUNCTION);
if (tm == NULL) if (tm == NULL)
luaG_typeerror(L, func, "call"); luaG_typeerror(L, func, "call");
luaD_openstack(L, func); luaD_openstack(L, func);
@ -177,7 +177,7 @@ void luaD_call (lua_State *L, StkId func, int nResults) {
luaV_execute(L, cl, func+1)); luaV_execute(L, cl, func+1));
if (callhook) /* same hook that was active at entry */ if (callhook) /* same hook that was active at entry */
luaD_callHook(L, func, callhook, "return"); luaD_callHook(L, func, callhook, "return");
LUA_ASSERT(ttype(func) == LUA_TMARK, "invalid tag"); lua_assert(ttype(func) == LUA_TMARK);
/* move results to `func' (to erase parameters and function) */ /* move results to `func' (to erase parameters and function) */
if (nResults == LUA_MULTRET) { if (nResults == LUA_MULTRET) {
while (firstResult < L->top) /* copy all results */ while (firstResult < L->top) /* copy all results */
@ -244,12 +244,12 @@ static int protectedparser (lua_State *L, ZIO *z, int bin) {
int status; int status;
p.z = z; p.bin = bin; p.z = z; p.bin = bin;
luaC_checkGC(L); luaC_checkGC(L);
old_blocks = L->nblocks; old_blocks = G(L)->nblocks;
status = luaD_runprotected(L, f_parser, &p); status = luaD_runprotected(L, f_parser, &p);
if (status == 0) { if (status == 0) {
/* add new memory to threshold (as it probably will stay) */ /* add new memory to threshold (as it probably will stay) */
LUA_ASSERT(L->nblocks >= old_blocks, "cannot reduce memory usage here"); lua_assert(G(L)->nblocks >= old_blocks);
L->GCthreshold += (L->nblocks - old_blocks); G(L)->GCthreshold += (G(L)->nblocks - old_blocks);
} }
else if (status == LUA_ERRRUN) /* an error occurred: correct error code */ else if (status == LUA_ERRRUN) /* an error occurred: correct error code */
status = LUA_ERRSYNTAX; status = LUA_ERRSYNTAX;

10
lfunc.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: lfunc.c,v 1.35 2000/12/04 18:33:40 roberto Exp roberto $ ** $Id: lfunc.c,v 1.36 2000/12/28 12:55:41 roberto Exp roberto $
** Auxiliary functions to manipulate prototypes and closures ** Auxiliary functions to manipulate prototypes and closures
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -19,8 +19,8 @@
Closure *luaF_newclosure (lua_State *L, int nelems) { Closure *luaF_newclosure (lua_State *L, int nelems) {
Closure *c = (Closure *)luaM_malloc(L, sizeclosure(nelems)); Closure *c = (Closure *)luaM_malloc(L, sizeclosure(nelems));
c->next = L->rootcl; c->next = G(L)->rootcl;
L->rootcl = c; G(L)->rootcl = c;
c->mark = c; c->mark = c;
c->nupvalues = nelems; c->nupvalues = nelems;
return c; return c;
@ -47,8 +47,8 @@ Proto *luaF_newproto (lua_State *L) {
f->locvars = NULL; f->locvars = NULL;
f->lineDefined = 0; f->lineDefined = 0;
f->source = NULL; f->source = NULL;
f->next = L->rootproto; /* chain in list of protos */ f->next = G(L)->rootproto; /* chain in list of protos */
L->rootproto = f; G(L)->rootproto = f;
return f; return f;
} }

85
lgc.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: lgc.c,v 1.75 2000/12/28 12:55:41 roberto Exp roberto $ ** $Id: lgc.c,v 1.76 2001/01/18 15:59:09 roberto Exp roberto $
** Garbage Collector ** Garbage Collector
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -54,11 +54,11 @@ static void markstack (lua_State *L, GCState *st) {
} }
static void marklock (lua_State *L, GCState *st) { static void marklock (global_State *G, GCState *st) {
int i; int i;
for (i=0; i<L->nref; i++) { for (i=0; i<G->nref; i++) {
if (L->refArray[i].st == LOCK) if (G->refArray[i].st == LOCK)
markobject(st, &L->refArray[i].o); markobject(st, &G->refArray[i].o);
} }
} }
@ -73,12 +73,12 @@ static void markclosure (GCState *st, Closure *cl) {
} }
static void marktagmethods (lua_State *L, GCState *st) { static void marktagmethods (global_State *G, GCState *st) {
int e; int e;
for (e=0; e<TM_N; e++) { for (e=0; e<TM_N; e++) {
int t; int t;
for (t=0; t<L->ntag; t++) { for (t=0; t<G->ntag; t++) {
Closure *cl = luaT_gettm(L, t, e); Closure *cl = luaT_gettm(G, t, e);
if (cl) markclosure(st, cl); if (cl) markclosure(st, cl);
} }
} }
@ -113,9 +113,9 @@ static void markall (lua_State *L) {
st.cmark = NULL; st.cmark = NULL;
st.tmark = L->gt; /* put table of globals in mark list */ st.tmark = L->gt; /* put table of globals in mark list */
L->gt->mark = NULL; L->gt->mark = NULL;
marktagmethods(L, &st); /* mark tag methods */ marktagmethods(G(L), &st); /* mark tag methods */
markstack(L, &st); /* mark stack objects */ markstack(L, &st); /* mark stack objects */
marklock(L, &st); /* mark locked objects */ marklock(G(L), &st); /* mark locked objects */
for (;;) { /* mark tables and closures */ for (;;) { /* mark tables and closures */
if (st.cmark) { if (st.cmark) {
int i; int i;
@ -161,27 +161,26 @@ static int hasmark (const TObject *o) {
/* macro for internal debugging; check if a link of free refs is valid */ /* macro for internal debugging; check if a link of free refs is valid */
#define VALIDLINK(L, st,n) (NONEXT <= (st) && (st) < (n)) #define VALIDLINK(L, st,n) (NONEXT <= (st) && (st) < (n))
static void invalidaterefs (lua_State *L) { static void invalidaterefs (global_State *G) {
int n = L->nref; int n = G->nref;
int i; int i;
for (i=0; i<n; i++) { for (i=0; i<n; i++) {
struct Ref *r = &L->refArray[i]; struct Ref *r = &G->refArray[i];
if (r->st == HOLD && !hasmark(&r->o)) if (r->st == HOLD && !hasmark(&r->o))
r->st = COLLECTED; r->st = COLLECTED;
LUA_ASSERT((r->st == LOCK && hasmark(&r->o)) || lua_assert((r->st == LOCK && hasmark(&r->o)) ||
(r->st == HOLD && hasmark(&r->o)) || (r->st == HOLD && hasmark(&r->o)) ||
r->st == COLLECTED || r->st == COLLECTED ||
r->st == NONEXT || r->st == NONEXT ||
(r->st < n && VALIDLINK(L, L->refArray[r->st].st, n)), (r->st < n && VALIDLINK(L, G->refArray[r->st].st, n)));
"inconsistent ref table");
} }
LUA_ASSERT(VALIDLINK(L, L->refFree, n), "inconsistent ref table"); lua_assert(VALIDLINK(L, G->refFree, n));
} }
static void collectproto (lua_State *L) { static void collectproto (lua_State *L) {
Proto **p = &L->rootproto; Proto **p = &G(L)->rootproto;
Proto *next; Proto *next;
while ((next = *p) != NULL) { while ((next = *p) != NULL) {
if (next->marked) { if (next->marked) {
@ -197,7 +196,7 @@ static void collectproto (lua_State *L) {
static void collectclosure (lua_State *L) { static void collectclosure (lua_State *L) {
Closure **p = &L->rootcl; Closure **p = &G(L)->rootcl;
Closure *next; Closure *next;
while ((next = *p) != NULL) { while ((next = *p) != NULL) {
if (ismarked(next)) { if (ismarked(next)) {
@ -213,7 +212,7 @@ static void collectclosure (lua_State *L) {
static void collecttable (lua_State *L) { static void collecttable (lua_State *L) {
Hash **p = &L->roottable; Hash **p = &G(L)->roottable;
Hash *next; Hash *next;
while ((next = *p) != NULL) { while ((next = *p) != NULL) {
if (ismarked(next)) { if (ismarked(next)) {
@ -236,8 +235,8 @@ static void checktab (lua_State *L, stringtable *tb) {
static void collectstrings (lua_State *L, int all) { static void collectstrings (lua_State *L, int all) {
int i; int i;
for (i=0; i<L->strt.size; i++) { /* for each list */ for (i=0; i<G(L)->strt.size; i++) { /* for each list */
TString **p = &L->strt.hash[i]; TString **p = &G(L)->strt.hash[i];
TString *next; TString *next;
while ((next = *p) != NULL) { while ((next = *p) != NULL) {
if (next->marked && !all) { /* preserve? */ if (next->marked && !all) { /* preserve? */
@ -247,22 +246,22 @@ static void collectstrings (lua_State *L, int all) {
} }
else { /* collect */ else { /* collect */
*p = next->nexthash; *p = next->nexthash;
L->strt.nuse--; G(L)->strt.nuse--;
luaM_free(L, next, sizestring(next->len)); luaM_free(L, next, sizestring(next->len));
} }
} }
} }
checktab(L, &L->strt); checktab(L, &G(L)->strt);
} }
static void collectudata (lua_State *L, int all) { static void collectudata (lua_State *L, int all) {
int i; int i;
for (i=0; i<L->udt.size; i++) { /* for each list */ for (i=0; i<G(L)->udt.size; i++) { /* for each list */
TString **p = &L->udt.hash[i]; TString **p = &G(L)->udt.hash[i];
TString *next; TString *next;
while ((next = *p) != NULL) { while ((next = *p) != NULL) {
LUA_ASSERT(next->marked <= 1, "udata cannot be fixed"); lua_assert(next->marked <= 1);
if (next->marked && !all) { /* preserve? */ if (next->marked && !all) { /* preserve? */
next->marked = 0; next->marked = 0;
p = &next->nexthash; p = &next->nexthash;
@ -270,28 +269,28 @@ static void collectudata (lua_State *L, int all) {
else { /* collect */ else { /* collect */
int tag = next->u.d.tag; int tag = next->u.d.tag;
*p = next->nexthash; *p = next->nexthash;
next->nexthash = L->TMtable[tag].collected; /* chain udata */ next->nexthash = G(L)->TMtable[tag].collected; /* chain udata */
L->TMtable[tag].collected = next; G(L)->TMtable[tag].collected = next;
L->udt.nuse--; G(L)->udt.nuse--;
} }
} }
} }
checktab(L, &L->udt); checktab(L, &G(L)->udt);
} }
#define MINBUFFER 256 #define MINBUFFER 256
static void checkMbuffer (lua_State *L) { static void checkMbuffer (lua_State *L) {
if (L->Mbuffsize > MINBUFFER*2) { /* is buffer too big? */ if (G(L)->Mbuffsize > MINBUFFER*2) { /* is buffer too big? */
size_t newsize = L->Mbuffsize/2; /* still larger than MINBUFFER */ size_t newsize = G(L)->Mbuffsize/2; /* still larger than MINBUFFER */
luaM_reallocvector(L, L->Mbuffer, L->Mbuffsize, newsize, char); luaM_reallocvector(L, G(L)->Mbuffer, G(L)->Mbuffsize, newsize, char);
L->Mbuffsize = newsize; G(L)->Mbuffsize = newsize;
} }
} }
static void callgcTM (lua_State *L, const TObject *obj) { static void callgcTM (lua_State *L, const TObject *obj) {
Closure *tm = luaT_gettmbyObj(L, obj, TM_GC); Closure *tm = luaT_gettmbyObj(G(L), obj, TM_GC);
if (tm != NULL) { if (tm != NULL) {
int oldah = L->allowhooks; int oldah = L->allowhooks;
L->allowhooks = 0; /* stop debug hooks during GC tag methods */ L->allowhooks = 0; /* stop debug hooks during GC tag methods */
@ -307,12 +306,12 @@ static void callgcTM (lua_State *L, const TObject *obj) {
static void callgcTMudata (lua_State *L) { static void callgcTMudata (lua_State *L) {
int tag; int tag;
L->GCthreshold = 2*L->nblocks; /* avoid GC during tag methods */ G(L)->GCthreshold = 2*G(L)->nblocks; /* avoid GC during tag methods */
for (tag=L->ntag-1; tag>=0; tag--) { /* for each tag (in reverse order) */ for (tag=G(L)->ntag-1; tag>=0; tag--) { /* for each tag (in reverse order) */
TString *udata; TString *udata;
while ((udata = L->TMtable[tag].collected) != NULL) { while ((udata = G(L)->TMtable[tag].collected) != NULL) {
TObject obj; TObject obj;
L->TMtable[tag].collected = udata->nexthash; /* remove it from list */ G(L)->TMtable[tag].collected = udata->nexthash; /* remove it from list */
setuvalue(&obj, udata); setuvalue(&obj, udata);
callgcTM(L, &obj); callgcTM(L, &obj);
luaM_free(L, udata, sizeudata(udata->len)); luaM_free(L, udata, sizeudata(udata->len));
@ -333,16 +332,16 @@ void luaC_collect (lua_State *L, int all) {
static void luaC_collectgarbage (lua_State *L) { static void luaC_collectgarbage (lua_State *L) {
markall(L); markall(L);
invalidaterefs(L); /* check unlocked references */ invalidaterefs(G(L)); /* check unlocked references */
luaC_collect(L, 0); luaC_collect(L, 0);
checkMbuffer(L); checkMbuffer(L);
L->GCthreshold = 2*L->nblocks; /* set new threshold */ G(L)->GCthreshold = 2*G(L)->nblocks; /* set new threshold */
callgcTM(L, &luaO_nilobject); callgcTM(L, &luaO_nilobject);
} }
void luaC_checkGC (lua_State *L) { void luaC_checkGC (lua_State *L) {
if (L->nblocks >= L->GCthreshold) if (G(L)->nblocks >= G(L)->GCthreshold)
luaC_collectgarbage(L); luaC_collectgarbage(L);
} }

18
llex.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: llex.c,v 1.74 2001/01/10 17:41:50 roberto Exp roberto $ ** $Id: llex.c,v 1.75 2001/01/15 18:07:56 roberto Exp roberto $
** Lexical Analyzer ** Lexical Analyzer
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -35,7 +35,7 @@ void luaX_init (lua_State *L) {
int i; int i;
for (i=0; i<NUM_RESERVED; i++) { for (i=0; i<NUM_RESERVED; i++) {
TString *ts = luaS_new(L, token2string[i]); TString *ts = luaS_new(L, token2string[i]);
LUA_ASSERT(strlen(token2string[i])+1 <= TOKEN_LEN, "incorrect token_len"); lua_assert(strlen(token2string[i])+1 <= TOKEN_LEN);
ts->marked = (unsigned char)(RESERVEDMARK+i); /* reserved word */ ts->marked = (unsigned char)(RESERVEDMARK+i); /* reserved word */
} }
} }
@ -65,7 +65,7 @@ void luaX_error (LexState *ls, const char *s, int token) {
char buff[TOKEN_LEN]; char buff[TOKEN_LEN];
luaX_token2str(token, buff); luaX_token2str(token, buff);
if (buff[0] == '\0') if (buff[0] == '\0')
luaX_syntaxerror(ls, s, ls->L->Mbuffer); luaX_syntaxerror(ls, s, G(ls->L)->Mbuffer);
else else
luaX_syntaxerror(ls, s, buff); luaX_syntaxerror(ls, s, buff);
} }
@ -123,10 +123,10 @@ void luaX_setinput (lua_State *L, LexState *LS, ZIO *z, TString *source) {
/* use Mbuffer to store names, literal strings and numbers */ /* use Mbuffer to store names, literal strings and numbers */
#define EXTRABUFF 128 #define EXTRABUFF 128
#define checkbuffer(L, n, len) if ((len)+(n) > L->Mbuffsize) \ #define checkbuffer(L, n, len) if ((len)+(n) > G(L)->Mbuffsize) \
luaO_openspace(L, (len)+(n)+EXTRABUFF) luaO_openspace(L, (len)+(n)+EXTRABUFF)
#define save(L, c, l) (L->Mbuffer[l++] = (char)c) #define save(L, c, l) (G(L)->Mbuffer[l++] = (char)c)
#define save_and_next(L, LS, l) (save(L, LS->current, l), next(LS)) #define save_and_next(L, LS, l) (save(L, LS->current, l), next(LS))
@ -176,7 +176,7 @@ static void read_number (LexState *LS, int comma, SemInfo *seminfo) {
} }
} }
save(L, '\0', l); save(L, '\0', l);
if (!luaO_str2d(L->Mbuffer, &seminfo->r)) if (!luaO_str2d(G(L)->Mbuffer, &seminfo->r))
luaX_error(LS, "malformed number", TK_NUMBER); luaX_error(LS, "malformed number", TK_NUMBER);
} }
@ -220,7 +220,7 @@ static void read_long_string (LexState *LS, SemInfo *seminfo) {
} endloop: } endloop:
save_and_next(L, LS, l); /* skip the second ']' */ save_and_next(L, LS, l); /* skip the second ']' */
save(L, '\0', l); save(L, '\0', l);
seminfo->ts = luaS_newlstr(L, L->Mbuffer+2, l-5); seminfo->ts = luaS_newlstr(L, G(L)->Mbuffer+2, l-5);
} }
@ -272,7 +272,7 @@ static void read_string (LexState *LS, int del, SemInfo *seminfo) {
} }
save_and_next(L, LS, l); /* skip delimiter */ save_and_next(L, LS, l); /* skip delimiter */
save(L, '\0', l); save(L, '\0', l);
seminfo->ts = luaS_newlstr(L, L->Mbuffer+1, l-3); seminfo->ts = luaS_newlstr(L, G(L)->Mbuffer+1, l-3);
} }
@ -367,7 +367,7 @@ int luaX_lex (LexState *LS, SemInfo *seminfo) {
} }
tname: { /* identifier or reserved word */ tname: { /* identifier or reserved word */
size_t l = readname(LS); size_t l = readname(LS);
TString *ts = luaS_newlstr(LS->L, LS->L->Mbuffer, l); TString *ts = luaS_newlstr(LS->L, G(LS->L)->Mbuffer, l);
if (ts->marked >= RESERVEDMARK) /* reserved word? */ if (ts->marked >= RESERVEDMARK) /* reserved word? */
return ts->marked-RESERVEDMARK+FIRST_RESERVED; return ts->marked-RESERVEDMARK+FIRST_RESERVED;
seminfo->ts = ts; seminfo->ts = ts;

8
lmem.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: lmem.c,v 1.41 2000/12/26 18:46:09 roberto Exp roberto $ ** $Id: lmem.c,v 1.42 2000/12/28 12:55:41 roberto Exp roberto $
** Interface to Memory Manager ** Interface to Memory Manager
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -161,9 +161,9 @@ void *luaM_realloc (lua_State *L, void *block, luint32 oldsize, luint32 size) {
else return NULL; /* error before creating state! */ else return NULL; /* error before creating state! */
} }
} }
if (L) { if (L && G(L)) {
L->nblocks -= oldsize; G(L)->nblocks -= oldsize;
L->nblocks += size; G(L)->nblocks += size;
} }
return block; return block;
} }

12
lobject.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: lobject.c,v 1.57 2000/12/04 18:33:40 roberto Exp roberto $ ** $Id: lobject.c,v 1.58 2000/12/28 12:55:41 roberto Exp roberto $
** Some generic functions over Lua objects ** Some generic functions over Lua objects
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -49,18 +49,18 @@ int luaO_equalObj (const TObject *t1, const TObject *t2) {
case LUA_TFUNCTION: case LUA_TFUNCTION:
return clvalue(t1) == clvalue(t2); return clvalue(t1) == clvalue(t2);
default: default:
LUA_ASSERT(ttype(t1) == LUA_TNIL, "invalid type"); lua_assert(ttype(t1) == LUA_TNIL);
return 1; /* LUA_TNIL */ return 1; /* LUA_TNIL */
} }
} }
char *luaO_openspace (lua_State *L, size_t n) { char *luaO_openspace (lua_State *L, size_t n) {
if (n > L->Mbuffsize) { if (n > G(L)->Mbuffsize) {
luaM_reallocvector(L, L->Mbuffer, L->Mbuffsize, n, char); luaM_reallocvector(L, G(L)->Mbuffer, G(L)->Mbuffsize, n, char);
L->Mbuffsize = n; G(L)->Mbuffsize = n;
} }
return L->Mbuffer; return G(L)->Mbuffer;
} }

30
lobject.h
View File

@ -1,5 +1,5 @@
/* /*
** $Id: lobject.h,v 1.85 2000/12/28 12:55:41 roberto Exp roberto $ ** $Id: lobject.h,v 1.86 2001/01/18 15:59:09 roberto Exp roberto $
** Type definitions for Lua objects ** Type definitions for Lua objects
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -15,11 +15,9 @@
#ifdef LUA_DEBUG #ifdef LUA_DEBUG
#undef NDEBUG #undef NDEBUG
#include <assert.h> #include <assert.h>
#define LUA_INTERNALERROR(s) assert(((void)s,0)) #define lua_assert(c) assert(c)
#define LUA_ASSERT(c,s) assert(((void)s,(c)))
#else #else
#define LUA_INTERNALERROR(s) /* empty */ #define lua_assert(c) /* empty */
#define LUA_ASSERT(c,s) /* empty */
#endif #endif
@ -67,27 +65,27 @@ typedef struct lua_TObject {
/* Macros to set values */ /* Macros to set values */
#define setnvalue(obj,x) \ #define setnvalue(obj,x) \
{ TObject *o=(obj); o->tt=LUA_TNUMBER; o->value.n=(x); } { TObject *_o=(obj); _o->tt=LUA_TNUMBER; _o->value.n=(x); }
#define setsvalue(obj,x) \ #define setsvalue(obj,x) \
{ TObject *o=(obj); struct TString *v=(x); \ { TObject *_o=(obj); struct TString *_v=(x); \
o->tt=LUA_TSTRING; o->value.v=v; } _o->tt=LUA_TSTRING; _o->value.v=_v; }
#define setuvalue(obj,x) \ #define setuvalue(obj,x) \
{ TObject *o=(obj); struct TString *v=(x); \ { TObject *_o=(obj); struct TString *_v=(x); \
o->tt=LUA_TUSERDATA; o->value.v=v; } _o->tt=LUA_TUSERDATA; _o->value.v=_v; }
#define setclvalue(obj,x) \ #define setclvalue(obj,x) \
{ TObject *o=(obj); struct Closure *v=(x); \ { TObject *_o=(obj); struct Closure *_v=(x); \
o->tt=LUA_TFUNCTION; o->value.v=v; } _o->tt=LUA_TFUNCTION; _o->value.v=_v; }
#define sethvalue(obj,x) \ #define sethvalue(obj,x) \
{ TObject *o=(obj); struct Hash *v=(x); \ { TObject *_o=(obj); struct Hash *_v=(x); \
o->tt=LUA_TTABLE; o->value.v=v; } _o->tt=LUA_TTABLE; _o->value.v=_v; }
#define setivalue(obj,x) \ #define setivalue(obj,x) \
{ TObject *o=(obj); struct CallInfo *v=(x); \ { TObject *_o=(obj); struct CallInfo *_v=(x); \
o->tt=LUA_TMARK; o->value.v=v; } _o->tt=LUA_TMARK; _o->value.v=_v; }
#define setnilvalue(obj) { (obj)->tt=LUA_TNIL; } #define setnilvalue(obj) { (obj)->tt=LUA_TNIL; }

15
lparser.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: lparser.c,v 1.123 2001/01/10 17:41:50 roberto Exp roberto $ ** $Id: lparser.c,v 1.124 2001/01/15 16:13:24 roberto Exp roberto $
** LL(1) Parser and code generator for Lua ** LL(1) Parser and code generator for Lua
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -65,7 +65,7 @@ static void next (LexState *ls) {
static void lookahead (LexState *ls) { static void lookahead (LexState *ls) {
LUA_ASSERT(ls->lookahead.token == TK_EOS, "two look-aheads"); lua_assert(ls->lookahead.token == TK_EOS);
ls->lookahead.token = luaX_lex(ls, &ls->lookahead.seminfo); ls->lookahead.token = luaX_lex(ls, &ls->lookahead.seminfo);
} }
@ -285,7 +285,7 @@ static void enterbreak (FuncState *fs, Breaklabel *bl) {
static void leavebreak (FuncState *fs, Breaklabel *bl) { static void leavebreak (FuncState *fs, Breaklabel *bl) {
fs->bl = bl->previous; fs->bl = bl->previous;
LUA_ASSERT(bl->stacklevel == fs->stacklevel, "wrong levels"); lua_assert(bl->stacklevel == fs->stacklevel);
luaK_patchlist(fs, bl->breaklist, luaK_getlabel(fs)); luaK_patchlist(fs, bl->breaklist, luaK_getlabel(fs));
} }
@ -352,7 +352,7 @@ static void close_func (LexState *ls) {
f->lineinfo[fs->nlineinfo++] = MAX_INT; /* end flag */ f->lineinfo[fs->nlineinfo++] = MAX_INT; /* end flag */
f->sizelineinfo = fs->nlineinfo; f->sizelineinfo = fs->nlineinfo;
ls->fs = fs->prev; ls->fs = fs->prev;
LUA_ASSERT(fs->bl == NULL, "wrong list end"); lua_assert(fs->bl == NULL);
} }
@ -365,8 +365,8 @@ Proto *luaY_parser (lua_State *L, ZIO *z) {
chunk(&lexstate); chunk(&lexstate);
check_condition(&lexstate, (lexstate.t.token == TK_EOS), "<eof> expected"); check_condition(&lexstate, (lexstate.t.token == TK_EOS), "<eof> expected");
close_func(&lexstate); close_func(&lexstate);
LUA_ASSERT(funcstate.prev == NULL, "wrong list end"); lua_assert(funcstate.prev == NULL);
LUA_ASSERT(funcstate.nupvalues == 0, "no upvalues in main"); lua_assert(funcstate.nupvalues == 0);
return funcstate.f; return funcstate.f;
} }
@ -1130,8 +1130,7 @@ static void chunk (LexState *ls) {
while (!islast && !block_follow(ls->t.token)) { while (!islast && !block_follow(ls->t.token)) {
islast = stat(ls); islast = stat(ls);
optional(ls, ';'); optional(ls, ';');
LUA_ASSERT(ls->fs->stacklevel == ls->fs->nactloc, lua_assert(ls->fs->stacklevel == ls->fs->nactloc);
"stack size != # local vars");
} }
} }

77
lstate.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: lstate.c,v 1.49 2000/12/26 18:46:09 roberto Exp roberto $ ** $Id: lstate.c,v 1.50 2000/12/28 12:55:41 roberto Exp roberto $
** Global State ** Global State
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -47,6 +47,24 @@ static void f_luaopen (lua_State *L, void *ud) {
stacksize = DEFAULT_STACK_SIZE; stacksize = DEFAULT_STACK_SIZE;
else else
stacksize += LUA_MINSTACK; stacksize += LUA_MINSTACK;
L->G = luaM_new(L, global_State);
G(L)->strt.size = G(L)->udt.size = 0;
G(L)->strt.nuse = G(L)->udt.nuse = 0;
G(L)->strt.hash = G(L)->udt.hash = NULL;
G(L)->Mbuffer = NULL;
G(L)->Mbuffsize = 0;
G(L)->rootproto = NULL;
G(L)->rootcl = NULL;
G(L)->roottable = NULL;
G(L)->TMtable = NULL;
G(L)->sizeTM = 0;
G(L)->ntag = 0;
G(L)->refArray = NULL;
G(L)->nref = 0;
G(L)->sizeref = 0;
G(L)->refFree = NONEXT;
G(L)->nblocks = sizeof(lua_State) + sizeof(global_State);
G(L)->GCthreshold = MAX_INT; /* to avoid GC during pre-definitions */
L->gt = luaH_new(L, 10); /* table of globals */ L->gt = luaH_new(L, 10); /* table of globals */
luaD_init(L, stacksize); luaD_init(L, stacksize);
luaS_init(L); luaS_init(L);
@ -58,61 +76,48 @@ static void f_luaopen (lua_State *L, void *ud) {
#ifdef LUA_DEBUG #ifdef LUA_DEBUG
luaB_opentests(L); luaB_opentests(L);
if (lua_state == NULL) lua_state = L; /* keep first state to be opened */ if (lua_state == NULL) lua_state = L; /* keep first state to be opened */
LUA_ASSERT(lua_gettop(L) == 0, "wrong API stack"); lua_assert(lua_gettop(L) == 0);
#endif #endif
} }
LUA_API lua_State *lua_open (int stacksize) { LUA_API lua_State *lua_open (int stacksize) {
lua_State *L = luaM_new(NULL, lua_State); lua_State *L;
L = luaM_new(NULL, lua_State);
if (L == NULL) return NULL; /* memory allocation error */ if (L == NULL) return NULL; /* memory allocation error */
L->G = NULL;
L->stack = NULL; L->stack = NULL;
L->stacksize = 0; L->stacksize = 0;
L->strt.size = L->udt.size = 0; L->errorJmp = NULL;
L->strt.nuse = L->udt.nuse = 0;
L->strt.hash = L->udt.hash = NULL;
L->Mbuffer = NULL;
L->Mbuffsize = 0;
L->rootproto = NULL;
L->rootcl = NULL;
L->roottable = NULL;
L->TMtable = NULL;
L->sizeTM = 0;
L->ntag = 0;
L->refArray = NULL;
L->nref = 0;
L->sizeref = 0;
L->refFree = NONEXT;
L->nblocks = sizeof(lua_State);
L->GCthreshold = MAX_INT; /* to avoid GC during pre-definitions */
L->callhook = NULL; L->callhook = NULL;
L->linehook = NULL; L->linehook = NULL;
L->allowhooks = 1; L->allowhooks = 1;
L->errorJmp = NULL;
if (luaD_runprotected(L, f_luaopen, &stacksize) != 0) { if (luaD_runprotected(L, f_luaopen, &stacksize) != 0) {
/* memory allocation error: free partial state */ /* memory allocation error: free partial state */
lua_close(L); lua_close(L);
return NULL; return NULL;
} }
L->GCthreshold = 2*L->nblocks; G(L)->GCthreshold = 2*G(L)->nblocks;
return L; return L;
} }
LUA_API void lua_close (lua_State *L) { LUA_API void lua_close (lua_State *L) {
LUA_ASSERT(L != lua_state || lua_gettop(L) == 0, "garbage in C stack"); lua_assert(L != lua_state || lua_gettop(L) == 0);
luaC_collect(L, 1); /* collect all elements */ if (G(L)) { /* close global state */
LUA_ASSERT(L->rootproto == NULL, "list should be empty"); luaC_collect(L, 1); /* collect all elements */
LUA_ASSERT(L->rootcl == NULL, "list should be empty"); lua_assert(G(L)->rootproto == NULL);
LUA_ASSERT(L->roottable == NULL, "list should be empty"); lua_assert(G(L)->rootcl == NULL);
luaS_freeall(L); lua_assert(G(L)->roottable == NULL);
luaM_freearray(L, L->stack, L->stacksize, TObject); luaS_freeall(L);
luaM_freearray(L, L->TMtable, L->sizeTM, struct TM); luaM_freearray(L, G(L)->TMtable, G(L)->sizeTM, struct TM);
luaM_freearray(L, L->refArray, L->sizeref, struct Ref); luaM_freearray(L, G(L)->refArray, G(L)->sizeref, struct Ref);
luaM_freearray(L, L->Mbuffer, L->Mbuffsize, char); luaM_freearray(L, G(L)->Mbuffer, G(L)->Mbuffsize, char);
LUA_ASSERT(L->nblocks == sizeof(lua_State), "wrong count for nblocks"); luaM_freelem(NULL, L->G, global_State);
luaM_freelem(L, L, lua_State); }
LUA_ASSERT(L != lua_state || memdebug_numblocks == 0, "memory leak!"); luaM_freearray(NULL, L->stack, L->stacksize, TObject);
LUA_ASSERT(L != lua_state || memdebug_total == 0,"memory leak!"); luaM_freelem(NULL, L, lua_State);
lua_assert(L != lua_state || memdebug_numblocks == 0);
lua_assert(L != lua_state || memdebug_total == 0);
} }

35
lstate.h
View File

@ -1,5 +1,5 @@
/* /*
** $Id: lstate.h,v 1.42 2000/11/24 17:39:56 roberto Exp roberto $ ** $Id: lstate.h,v 1.43 2000/12/26 18:46:09 roberto Exp roberto $
** Global State ** Global State
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -42,24 +42,17 @@ typedef struct stringtable {
} stringtable; } stringtable;
/*
struct lua_State { ** "global state", shared by all threads of this state
/* thread-specific state */ */
StkId top; /* first free slot in the stack */ typedef struct global_State {
StkId stack; /* stack base */
StkId stack_last; /* last free slot in the stack */
int stacksize;
StkId Cbase; /* base for current C function */
struct lua_longjmp *errorJmp; /* current error recover point */
char *Mbuffer; /* global buffer */ char *Mbuffer; /* global buffer */
size_t Mbuffsize; /* size of Mbuffer */ size_t Mbuffsize; /* size of Mbuffer */
/* global state */
Proto *rootproto; /* list of all prototypes */ Proto *rootproto; /* list of all prototypes */
Closure *rootcl; /* list of all closures */ Closure *rootcl; /* list of all closures */
Hash *roottable; /* list of all tables */ Hash *roottable; /* list of all tables */
stringtable strt; /* hash table for strings */ stringtable strt; /* hash table for strings */
stringtable udt; /* hash table for udata */ stringtable udt; /* hash table for udata */
Hash *gt; /* table for globals */
struct TM *TMtable; /* table for tag methods */ struct TM *TMtable; /* table for tag methods */
int sizeTM; /* size of TMtable */ int sizeTM; /* size of TMtable */
int ntag; /* number of tags in TMtable */ int ntag; /* number of tags in TMtable */
@ -69,11 +62,29 @@ struct lua_State {
int refFree; /* list of free positions in refArray */ int refFree; /* list of free positions in refArray */
mem_int GCthreshold; mem_int GCthreshold;
mem_int nblocks; /* number of `bytes' currently allocated */ mem_int nblocks; /* number of `bytes' currently allocated */
} global_State;
/*
** "per thread" state
*/
struct lua_State {
StkId top; /* first free slot in the stack */
StkId stack; /* stack base */
StkId stack_last; /* last free slot in the stack */
int stacksize;
StkId Cbase; /* base for current C function */
struct lua_longjmp *errorJmp; /* current error recover point */
Hash *gt; /* table for globals */
lua_Hook callhook; lua_Hook callhook;
lua_Hook linehook; lua_Hook linehook;
int allowhooks; int allowhooks;
global_State *G;
}; };
#define G(L) (L->G)
#endif #endif

29
lstring.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: lstring.c,v 1.49 2001/01/10 17:41:50 roberto Exp roberto $ ** $Id: lstring.c,v 1.50 2001/01/11 18:59:20 roberto Exp roberto $
** String table (keeps all strings handled by Lua) ** String table (keeps all strings handled by Lua)
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -19,16 +19,16 @@
void luaS_init (lua_State *L) { void luaS_init (lua_State *L) {
luaS_resize(L, &L->strt, MINPOWER2); luaS_resize(L, &G(L)->strt, MINPOWER2);
luaS_resize(L, &L->udt, MINPOWER2); luaS_resize(L, &G(L)->udt, MINPOWER2);
} }
void luaS_freeall (lua_State *L) { void luaS_freeall (lua_State *L) {
LUA_ASSERT(L->strt.nuse==0, "non-empty string table"); lua_assert(G(L)->strt.nuse==0);
luaM_freearray(L, L->strt.hash, L->strt.size, TString *); luaM_freearray(L, G(L)->strt.hash, G(L)->strt.size, TString *);
LUA_ASSERT(L->udt.nuse==0, "non-empty udata table"); lua_assert(G(L)->udt.nuse==0);
luaM_freearray(L, L->udt.hash, L->udt.size, TString *); luaM_freearray(L, G(L)->udt.hash, G(L)->udt.size, TString *);
} }
@ -41,10 +41,9 @@ void luaS_resize (lua_State *L, stringtable *tb, int newsize) {
TString *p = tb->hash[i]; TString *p = tb->hash[i];
while (p) { /* for each node in the list */ while (p) { /* for each node in the list */
TString *next = p->nexthash; /* save next */ TString *next = p->nexthash; /* save next */
luint32 h = (tb == &L->strt) ? p->u.s.hash : IntPoint(p->u.d.value); luint32 h = (tb == &G(L)->strt) ? p->u.s.hash : IntPoint(p->u.d.value);
int h1 = lmod(h, newsize); /* new position */ int h1 = lmod(h, newsize); /* new position */
LUA_ASSERT((int)(h%newsize) == lmod(h, newsize), lua_assert((int)(h%newsize) == lmod(h, newsize));
"a&(x-1) == a%x, for x power of 2");
p->nexthash = newhash[h1]; /* chain it in new position */ p->nexthash = newhash[h1]; /* chain it in new position */
newhash[h1] = p; newhash[h1] = p;
p = next; p = next;
@ -73,7 +72,7 @@ TString *luaS_newlstr (lua_State *L, const char *str, size_t l) {
size_t l1; size_t l1;
for (l1=l; l1>=step; l1-=step) /* compute hash */ for (l1=l; l1>=step; l1-=step) /* compute hash */
h = h ^ ((h<<5)+(h>>2)+(unsigned char)str[l1-1]); h = h ^ ((h<<5)+(h>>2)+(unsigned char)str[l1-1]);
for (ts = L->strt.hash[lmod(h, L->strt.size)]; ts; ts = ts->nexthash) { for (ts = G(L)->strt.hash[lmod(h, G(L)->strt.size)]; ts; ts = ts->nexthash) {
if (ts->len == l && (memcmp(str, ts->str, l) == 0)) if (ts->len == l && (memcmp(str, ts->str, l) == 0))
return ts; return ts;
} }
@ -86,7 +85,7 @@ TString *luaS_newlstr (lua_State *L, const char *str, size_t l) {
ts->u.s.constindex = 0; ts->u.s.constindex = 0;
memcpy(ts->str, str, l); memcpy(ts->str, str, l);
ts->str[l] = 0; /* ending 0 */ ts->str[l] = 0; /* ending 0 */
newentry(L, &L->strt, ts, lmod(h, L->strt.size)); /* insert it on table */ newentry(L, &G(L)->strt, ts, lmod(h, G(L)->strt.size)); /* insert it */
return ts; return ts;
} }
@ -100,15 +99,15 @@ TString *luaS_newudata (lua_State *L, size_t s, void *udata) {
ts->u.d.tag = 0; ts->u.d.tag = 0;
ts->u.d.value = (udata == NULL) ? uts+1 : udata; ts->u.d.value = (udata == NULL) ? uts+1 : udata;
/* insert it on table */ /* insert it on table */
newentry(L, &L->udt, ts, lmod(IntPoint(ts->u.d.value), L->udt.size)); newentry(L, &G(L)->udt, ts, lmod(IntPoint(ts->u.d.value), G(L)->udt.size));
return ts; return ts;
} }
TString *luaS_createudata (lua_State *L, void *udata, int tag) { TString *luaS_createudata (lua_State *L, void *udata, int tag) {
int h1 = lmod(IntPoint(udata), L->udt.size); int h1 = lmod(IntPoint(udata), G(L)->udt.size);
TString *ts; TString *ts;
for (ts = L->udt.hash[h1]; ts; ts = ts->nexthash) { for (ts = G(L)->udt.hash[h1]; ts; ts = ts->nexthash) {
if (udata == ts->u.d.value && (tag == ts->u.d.tag || tag == LUA_ANYTAG)) if (udata == ts->u.d.value && (tag == ts->u.d.tag || tag == LUA_ANYTAG))
return ts; return ts;
} }

10
ltable.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: ltable.c,v 1.63 2001/01/10 18:56:11 roberto Exp roberto $ ** $Id: ltable.c,v 1.64 2001/01/18 15:59:09 roberto Exp roberto $
** Lua tables (hash) ** Lua tables (hash)
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -144,7 +144,7 @@ void luaH_remove (Hash *t, TObject *key) {
n += t->size; n += t->size;
} }
setnvalue(key, n); setnvalue(key, n);
LUA_ASSERT(luaH_mainposition(t, key) == mp, "cannot change hash"); lua_assert(luaH_mainposition(t, key) == mp);
} }
} }
@ -167,8 +167,8 @@ static void setnodevector (lua_State *L, Hash *t, luint32 size) {
Hash *luaH_new (lua_State *L, int size) { Hash *luaH_new (lua_State *L, int size) {
Hash *t = luaM_new(L, Hash); Hash *t = luaM_new(L, Hash);
t->htag = TagDefault; t->htag = TagDefault;
t->next = L->roottable; t->next = G(L)->roottable;
L->roottable = t; G(L)->roottable = t;
t->mark = t; t->mark = t;
t->size = 0; t->size = 0;
t->node = NULL; t->node = NULL;
@ -201,7 +201,7 @@ static void rehash (lua_State *L, Hash *t) {
Node *nold = t->node; Node *nold = t->node;
int nelems = numuse(t); int nelems = numuse(t);
int i; int i;
LUA_ASSERT(nelems<=oldsize, "wrong count"); lua_assert(nelems<=oldsize);
if (nelems >= oldsize-oldsize/4) /* using more than 3/4? */ if (nelems >= oldsize-oldsize/4) /* using more than 3/4? */
setnodevector(L, t, (luint32)oldsize*2); setnodevector(L, t, (luint32)oldsize*2);
else if (nelems <= oldsize/4 && /* less than 1/4? */ else if (nelems <= oldsize/4 && /* less than 1/4? */

5
ltests.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: ltests.c,v 1.56 2001/01/15 16:13:24 roberto Exp roberto $ ** $Id: ltests.c,v 1.57 2001/01/18 15:59:09 roberto Exp roberto $
** Internal Module for Debugging of the Lua Implementation ** Internal Module for Debugging of the Lua Implementation
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -215,7 +215,8 @@ static int table_query (lua_State *L) {
static int string_query (lua_State *L) { static int string_query (lua_State *L) {
stringtable *tb = (*luaL_check_string(L, 1) == 's') ? &L->strt : &L->udt; stringtable *tb = (*luaL_check_string(L, 1) == 's') ? &G(L)->strt :
&G(L)->udt;
int s = luaL_opt_int(L, 2, 0) - 1; int s = luaL_opt_int(L, 2, 0) - 1;
if (s==-1) { if (s==-1) {
lua_pushnumber(L ,tb->nuse); lua_pushnumber(L ,tb->nuse);

34
ltm.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: ltm.c,v 1.59 2000/12/28 12:55:41 roberto Exp roberto $ ** $Id: ltm.c,v 1.60 2001/01/18 15:59:09 roberto Exp roberto $
** Tag methods ** Tag methods
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -68,36 +68,36 @@ int luaT_validevent (int t, int e) { /* ORDER LUA_T */
static void init_entry (lua_State *L, int tag) { static void init_entry (lua_State *L, int tag) {
int i; int i;
for (i=0; i<TM_N; i++) for (i=0; i<TM_N; i++)
luaT_gettm(L, tag, i) = NULL; luaT_gettm(G(L), tag, i) = NULL;
L->TMtable[tag].collected = NULL; G(L)->TMtable[tag].collected = NULL;
} }
void luaT_init (lua_State *L) { void luaT_init (lua_State *L) {
int t; int t;
L->TMtable = luaM_newvector(L, NUM_TAGS+2, struct TM); G(L)->TMtable = luaM_newvector(L, NUM_TAGS+2, struct TM);
L->sizeTM = NUM_TAGS+2; G(L)->sizeTM = NUM_TAGS+2;
L->ntag = NUM_TAGS; G(L)->ntag = NUM_TAGS;
for (t=0; t<L->ntag; t++) for (t=0; t<G(L)->ntag; t++)
init_entry(L, t); init_entry(L, t);
} }
LUA_API int lua_newtag (lua_State *L) { LUA_API int lua_newtag (lua_State *L) {
luaM_growvector(L, L->TMtable, L->ntag, L->sizeTM, struct TM, luaM_growvector(L, G(L)->TMtable, G(L)->ntag, G(L)->sizeTM, struct TM,
MAX_INT, "tag table overflow"); MAX_INT, "tag table overflow");
init_entry(L, L->ntag); init_entry(L, G(L)->ntag);
return L->ntag++; return G(L)->ntag++;
} }
static void checktag (lua_State *L, int tag) { static void checktag (lua_State *L, int tag) {
if (!(0 <= tag && tag < L->ntag)) if (!(0 <= tag && tag < G(L)->ntag))
luaO_verror(L, "%d is not a valid tag", tag); luaO_verror(L, "%d is not a valid tag", tag);
} }
void luaT_realtag (lua_State *L, int tag) { void luaT_realtag (lua_State *L, int tag) {
if (!validtag(tag)) if (!validtag(G(L), tag))
luaO_verror(L, "tag %d was not created by `newtag'", tag); luaO_verror(L, "tag %d was not created by `newtag'", tag);
} }
@ -108,7 +108,7 @@ LUA_API int lua_copytagmethods (lua_State *L, int tagto, int tagfrom) {
checktag(L, tagfrom); checktag(L, tagfrom);
for (e=0; e<TM_N; e++) { for (e=0; e<TM_N; e++) {
if (luaT_validevent(tagto, e)) if (luaT_validevent(tagto, e))
luaT_gettm(L, tagto, e) = luaT_gettm(L, tagfrom, e); luaT_gettm(G(L), tagto, e) = luaT_gettm(G(L), tagfrom, e);
} }
return tagto; return tagto;
} }
@ -128,8 +128,8 @@ LUA_API void lua_gettagmethod (lua_State *L, int t, const char *event) {
int e; int e;
e = luaI_checkevent(L, event, t); e = luaI_checkevent(L, event, t);
checktag(L, t); checktag(L, t);
if (luaT_validevent(t, e) && luaT_gettm(L, t, e)) { if (luaT_validevent(t, e) && luaT_gettm(G(L), t, e)) {
setclvalue(L->top, luaT_gettm(L, t, e)); setclvalue(L->top, luaT_gettm(G(L), t, e));
} }
else else
setnilvalue(L->top); setnilvalue(L->top);
@ -147,10 +147,10 @@ LUA_API void lua_settagmethod (lua_State *L, int t, const char *event) {
" with default tag" : ""); " with default tag" : "");
switch (ttype(L->top - 1)) { switch (ttype(L->top - 1)) {
case LUA_TNIL: case LUA_TNIL:
luaT_gettm(L, t, e) = NULL; luaT_gettm(G(L), t, e) = NULL;
break; break;
case LUA_TFUNCTION: case LUA_TFUNCTION:
luaT_gettm(L, t, e) = clvalue(L->top - 1); luaT_gettm(G(L), t, e) = clvalue(L->top - 1);
break; break;
default: default:
lua_error(L, "tag method must be a function (or nil)"); lua_error(L, "tag method must be a function (or nil)");

8
ltm.h
View File

@ -1,5 +1,5 @@
/* /*
** $Id: ltm.h,v 1.18 2000/10/05 13:00:17 roberto Exp roberto $ ** $Id: ltm.h,v 1.19 2000/12/26 18:46:09 roberto Exp roberto $
** Tag methods ** Tag methods
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -41,11 +41,11 @@ struct TM {
}; };
#define luaT_gettm(L,tag,event) (L->TMtable[tag].method[event]) #define luaT_gettm(G,tag,event) (G->TMtable[tag].method[event])
#define luaT_gettmbyObj(L,o,e) (luaT_gettm((L),luaT_tag(o),(e))) #define luaT_gettmbyObj(G,o,e) (luaT_gettm((G),luaT_tag(o),(e)))
#define validtag(t) (NUM_TAGS <= (t) && (t) < L->ntag) #define validtag(G,t) (NUM_TAGS <= (t) && (t) < G->ntag)
extern const char *const luaT_eventname[]; extern const char *const luaT_eventname[];

30
lvm.c
View File

@ -1,5 +1,5 @@
/* /*
** $Id: lvm.c,v 1.153 2001/01/15 16:13:24 roberto Exp roberto $ ** $Id: lvm.c,v 1.154 2001/01/18 15:59:09 roberto Exp roberto $
** Lua virtual machine ** Lua virtual machine
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -118,16 +118,16 @@ const TObject *luaV_gettable (lua_State *L, StkId t) {
int tg; int tg;
if (ttype(t) == LUA_TTABLE && /* `t' is a table? */ if (ttype(t) == LUA_TTABLE && /* `t' is a table? */
((tg = hvalue(t)->htag) == LUA_TTABLE || /* with default tag? */ ((tg = hvalue(t)->htag) == LUA_TTABLE || /* with default tag? */
luaT_gettm(L, tg, TM_GETTABLE) == NULL)) { /* or no TM? */ luaT_gettm(G(L), tg, TM_GETTABLE) == NULL)) { /* or no TM? */
/* do a primitive get */ /* do a primitive get */
const TObject *h = luaH_get(hvalue(t), L->top-1); const TObject *h = luaH_get(hvalue(t), L->top-1);
/* result is no nil or there is no `index' tag method? */ /* result is no nil or there is no `index' tag method? */
if (ttype(h) != LUA_TNIL || ((tm=luaT_gettm(L, tg, TM_INDEX)) == NULL)) if (ttype(h) != LUA_TNIL || ((tm=luaT_gettm(G(L), tg, TM_INDEX)) == NULL))
return h; /* return result */ return h; /* return result */
/* else call `index' tag method */ /* else call `index' tag method */
} }
else { /* try a `gettable' tag method */ else { /* try a `gettable' tag method */
tm = luaT_gettmbyObj(L, t, TM_GETTABLE); tm = luaT_gettmbyObj(G(L), t, TM_GETTABLE);
} }
if (tm != NULL) { /* is there a tag method? */ if (tm != NULL) { /* is there a tag method? */
luaD_checkstack(L, 2); luaD_checkstack(L, 2);
@ -152,11 +152,11 @@ void luaV_settable (lua_State *L, StkId t, StkId key) {
int tg; int tg;
if (ttype(t) == LUA_TTABLE && /* `t' is a table? */ if (ttype(t) == LUA_TTABLE && /* `t' is a table? */
((tg = hvalue(t)->htag) == LUA_TTABLE || /* with default tag? */ ((tg = hvalue(t)->htag) == LUA_TTABLE || /* with default tag? */
luaT_gettm(L, tg, TM_SETTABLE) == NULL)) { /* or no TM? */ luaT_gettm(G(L), tg, TM_SETTABLE) == NULL)) { /* or no TM? */
setobj(luaH_set(L, hvalue(t), key), L->top-1); /* do a primitive set */ setobj(luaH_set(L, hvalue(t), key), L->top-1); /* do a primitive set */
} }
else { /* try a `settable' tag method */ else { /* try a `settable' tag method */
Closure *tm = luaT_gettmbyObj(L, t, TM_SETTABLE); Closure *tm = luaT_gettmbyObj(G(L), t, TM_SETTABLE);
if (tm != NULL) { if (tm != NULL) {
luaD_checkstack(L, 3); luaD_checkstack(L, 3);
setobj(L->top+2, L->top-1); setobj(L->top+2, L->top-1);
@ -174,7 +174,7 @@ void luaV_settable (lua_State *L, StkId t, StkId key) {
const TObject *luaV_getglobal (lua_State *L, TString *s) { const TObject *luaV_getglobal (lua_State *L, TString *s) {
const TObject *value = luaH_getstr(L->gt, s); const TObject *value = luaH_getstr(L->gt, s);
Closure *tm = luaT_gettmbyObj(L, value, TM_GETGLOBAL); Closure *tm = luaT_gettmbyObj(G(L), value, TM_GETGLOBAL);
if (tm == NULL) /* is there a tag method? */ if (tm == NULL) /* is there a tag method? */
return value; /* default behavior */ return value; /* default behavior */
else { /* tag method */ else { /* tag method */
@ -191,7 +191,7 @@ const TObject *luaV_getglobal (lua_State *L, TString *s) {
void luaV_setglobal (lua_State *L, TString *s) { void luaV_setglobal (lua_State *L, TString *s) {
TObject *oldvalue = luaH_setstr(L, L->gt, s); TObject *oldvalue = luaH_setstr(L, L->gt, s);
Closure *tm = luaT_gettmbyObj(L, oldvalue, TM_SETGLOBAL); Closure *tm = luaT_gettmbyObj(G(L), oldvalue, TM_SETGLOBAL);
if (tm == NULL) { /* no tag methods? */ if (tm == NULL) { /* no tag methods? */
setobj(oldvalue, L->top - 1); /* raw set */ setobj(oldvalue, L->top - 1); /* raw set */
} }
@ -209,12 +209,12 @@ void luaV_setglobal (lua_State *L, TString *s) {
static int call_binTM (lua_State *L, StkId top, TMS event) { static int call_binTM (lua_State *L, StkId top, TMS event) {
/* try first operand */ /* try first operand */
Closure *tm = luaT_gettmbyObj(L, top-2, event); Closure *tm = luaT_gettmbyObj(G(L), top-2, event);
L->top = top; L->top = top;
if (tm == NULL) { if (tm == NULL) {
tm = luaT_gettmbyObj(L, top-1, event); /* try second operand */ tm = luaT_gettmbyObj(G(L), top-1, event); /* try second operand */
if (tm == NULL) { if (tm == NULL) {
tm = luaT_gettm(L, 0, event); /* try a `global' method */ tm = luaT_gettm(G(L), 0, event); /* try a `global' method */
if (tm == NULL) if (tm == NULL)
return 0; /* error */ return 0; /* error */
} }
@ -369,7 +369,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
} }
case OP_PUSHNIL: { case OP_PUSHNIL: {
int n = GETARG_U(i); int n = GETARG_U(i);
LUA_ASSERT(n>0, "invalid argument"); lua_assert(n>0);
do { do {
setnilvalue(top++); setnilvalue(top++);
} while (--n > 0); } while (--n > 0);
@ -620,8 +620,8 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
break; break;
} }
case OP_FORLOOP: { case OP_FORLOOP: {
LUA_ASSERT(ttype(top-1) == LUA_TNUMBER, "invalid step"); lua_assert(ttype(top-1) == LUA_TNUMBER);
LUA_ASSERT(ttype(top-2) == LUA_TNUMBER, "invalid limit"); lua_assert(ttype(top-2) == LUA_TNUMBER);
if (ttype(top-3) != LUA_TNUMBER) if (ttype(top-3) != LUA_TNUMBER)
lua_error(L, "`for' index must be a number"); lua_error(L, "`for' index must be a number");
nvalue(top-3) += nvalue(top-1); /* increment index */ nvalue(top-3) += nvalue(top-1); /* increment index */
@ -651,7 +651,7 @@ StkId luaV_execute (lua_State *L, const Closure *cl, StkId base) {
} }
case OP_LFORLOOP: { case OP_LFORLOOP: {
Node *node; Node *node;
LUA_ASSERT(ttype(top-3) == LUA_TTABLE, "invalid table"); lua_assert(ttype(top-3) == LUA_TTABLE);
node = luaH_next(L, hvalue(top-3), top-2); node = luaH_next(L, hvalue(top-3), top-2);
if (node == NULL) /* end loop? */ if (node == NULL) /* end loop? */
top -= 3; /* remove table, key, and value */ top -= 3; /* remove table, key, and value */