aboutsummaryrefslogtreecommitdiff
path: root/lfunc.c
diff options
context:
space:
mode:
Diffstat (limited to 'lfunc.c')
-rw-r--r--lfunc.c42
1 files changed, 21 insertions, 21 deletions
diff --git a/lfunc.c b/lfunc.c
index daba0abf..804bf9dc 100644
--- a/lfunc.c
+++ b/lfunc.c
@@ -50,8 +50,8 @@ void luaF_initupvals (lua_State *L, LClosure *cl) {
50 for (i = 0; i < cl->nupvalues; i++) { 50 for (i = 0; i < cl->nupvalues; i++) {
51 GCObject *o = luaC_newobj(L, LUA_VUPVAL, sizeof(UpVal)); 51 GCObject *o = luaC_newobj(L, LUA_VUPVAL, sizeof(UpVal));
52 UpVal *uv = gco2upv(o); 52 UpVal *uv = gco2upv(o);
53 uv->v = &uv->u.value; /* make it closed */ 53 uv->v.p = &uv->u.value; /* make it closed */
54 setnilvalue(uv->v); 54 setnilvalue(uv->v.p);
55 cl->upvals[i] = uv; 55 cl->upvals[i] = uv;
56 luaC_objbarrier(L, cl, uv); 56 luaC_objbarrier(L, cl, uv);
57 } 57 }
@@ -66,7 +66,7 @@ static UpVal *newupval (lua_State *L, int tbc, StkId level, UpVal **prev) {
66 GCObject *o = luaC_newobj(L, LUA_VUPVAL, sizeof(UpVal)); 66 GCObject *o = luaC_newobj(L, LUA_VUPVAL, sizeof(UpVal));
67 UpVal *uv = gco2upv(o); 67 UpVal *uv = gco2upv(o);
68 UpVal *next = *prev; 68 UpVal *next = *prev;
69 uv->v = s2v(level); /* current value lives in the stack */ 69 uv->v.p = s2v(level); /* current value lives in the stack */
70 uv->tbc = tbc; 70 uv->tbc = tbc;
71 uv->u.open.next = next; /* link it to list of open upvalues */ 71 uv->u.open.next = next; /* link it to list of open upvalues */
72 uv->u.open.previous = prev; 72 uv->u.open.previous = prev;
@@ -106,12 +106,12 @@ UpVal *luaF_findupval (lua_State *L, StkId level) {
106** (This function assumes EXTRA_STACK.) 106** (This function assumes EXTRA_STACK.)
107*/ 107*/
108static void callclosemethod (lua_State *L, TValue *obj, TValue *err, int yy) { 108static void callclosemethod (lua_State *L, TValue *obj, TValue *err, int yy) {
109 StkId top = L->top; 109 StkId top = L->top.p;
110 const TValue *tm = luaT_gettmbyobj(L, obj, TM_CLOSE); 110 const TValue *tm = luaT_gettmbyobj(L, obj, TM_CLOSE);
111 setobj2s(L, top, tm); /* will call metamethod... */ 111 setobj2s(L, top, tm); /* will call metamethod... */
112 setobj2s(L, top + 1, obj); /* with 'self' as the 1st argument */ 112 setobj2s(L, top + 1, obj); /* with 'self' as the 1st argument */
113 setobj2s(L, top + 2, err); /* and error msg. as 2nd argument */ 113 setobj2s(L, top + 2, err); /* and error msg. as 2nd argument */
114 L->top = top + 3; /* add function and arguments */ 114 L->top.p = top + 3; /* add function and arguments */
115 if (yy) 115 if (yy)
116 luaD_call(L, top, 0); 116 luaD_call(L, top, 0);
117 else 117 else
@@ -126,7 +126,7 @@ static void callclosemethod (lua_State *L, TValue *obj, TValue *err, int yy) {
126static void checkclosemth (lua_State *L, StkId level) { 126static void checkclosemth (lua_State *L, StkId level) {
127 const TValue *tm = luaT_gettmbyobj(L, s2v(level), TM_CLOSE); 127 const TValue *tm = luaT_gettmbyobj(L, s2v(level), TM_CLOSE);
128 if (ttisnil(tm)) { /* no metamethod? */ 128 if (ttisnil(tm)) { /* no metamethod? */
129 int idx = cast_int(level - L->ci->func); /* variable index */ 129 int idx = cast_int(level - L->ci->func.p); /* variable index */
130 const char *vname = luaG_findlocal(L, L->ci, idx, NULL); 130 const char *vname = luaG_findlocal(L, L->ci, idx, NULL);
131 if (vname == NULL) vname = "?"; 131 if (vname == NULL) vname = "?";
132 luaG_runerror(L, "variable '%s' got a non-closable value", vname); 132 luaG_runerror(L, "variable '%s' got a non-closable value", vname);
@@ -160,23 +160,23 @@ static void prepcallclosemth (lua_State *L, StkId level, int status, int yy) {
160** is used.) 160** is used.)
161*/ 161*/
162#define MAXDELTA \ 162#define MAXDELTA \
163 ((256ul << ((sizeof(L->stack->tbclist.delta) - 1) * 8)) - 1) 163 ((256ul << ((sizeof(L->stack.p->tbclist.delta) - 1) * 8)) - 1)
164 164
165 165
166/* 166/*
167** Insert a variable in the list of to-be-closed variables. 167** Insert a variable in the list of to-be-closed variables.
168*/ 168*/
169void luaF_newtbcupval (lua_State *L, StkId level) { 169void luaF_newtbcupval (lua_State *L, StkId level) {
170 lua_assert(level > L->tbclist); 170 lua_assert(level > L->tbclist.p);
171 if (l_isfalse(s2v(level))) 171 if (l_isfalse(s2v(level)))
172 return; /* false doesn't need to be closed */ 172 return; /* false doesn't need to be closed */
173 checkclosemth(L, level); /* value must have a close method */ 173 checkclosemth(L, level); /* value must have a close method */
174 while (cast_uint(level - L->tbclist) > MAXDELTA) { 174 while (cast_uint(level - L->tbclist.p) > MAXDELTA) {
175 L->tbclist += MAXDELTA; /* create a dummy node at maximum delta */ 175 L->tbclist.p += MAXDELTA; /* create a dummy node at maximum delta */
176 L->tbclist->tbclist.delta = 0; 176 L->tbclist.p->tbclist.delta = 0;
177 } 177 }
178 level->tbclist.delta = cast(unsigned short, level - L->tbclist); 178 level->tbclist.delta = cast(unsigned short, level - L->tbclist.p);
179 L->tbclist = level; 179 L->tbclist.p = level;
180} 180}
181 181
182 182
@@ -196,10 +196,10 @@ void luaF_closeupval (lua_State *L, StkId level) {
196 StkId upl; /* stack index pointed by 'uv' */ 196 StkId upl; /* stack index pointed by 'uv' */
197 while ((uv = L->openupval) != NULL && (upl = uplevel(uv)) >= level) { 197 while ((uv = L->openupval) != NULL && (upl = uplevel(uv)) >= level) {
198 TValue *slot = &uv->u.value; /* new position for value */ 198 TValue *slot = &uv->u.value; /* new position for value */
199 lua_assert(uplevel(uv) < L->top); 199 lua_assert(uplevel(uv) < L->top.p);
200 luaF_unlinkupval(uv); /* remove upvalue from 'openupval' list */ 200 luaF_unlinkupval(uv); /* remove upvalue from 'openupval' list */
201 setobj(L, slot, uv->v); /* move value to upvalue slot */ 201 setobj(L, slot, uv->v.p); /* move value to upvalue slot */
202 uv->v = slot; /* now current value lives here */ 202 uv->v.p = slot; /* now current value lives here */
203 if (!iswhite(uv)) { /* neither white nor dead? */ 203 if (!iswhite(uv)) { /* neither white nor dead? */
204 nw2black(uv); /* closed upvalues cannot be gray */ 204 nw2black(uv); /* closed upvalues cannot be gray */
205 luaC_barrier(L, uv, slot); 205 luaC_barrier(L, uv, slot);
@@ -212,12 +212,12 @@ void luaF_closeupval (lua_State *L, StkId level) {
212** Remove first element from the tbclist plus its dummy nodes. 212** Remove first element from the tbclist plus its dummy nodes.
213*/ 213*/
214static void poptbclist (lua_State *L) { 214static void poptbclist (lua_State *L) {
215 StkId tbc = L->tbclist; 215 StkId tbc = L->tbclist.p;
216 lua_assert(tbc->tbclist.delta > 0); /* first element cannot be dummy */ 216 lua_assert(tbc->tbclist.delta > 0); /* first element cannot be dummy */
217 tbc -= tbc->tbclist.delta; 217 tbc -= tbc->tbclist.delta;
218 while (tbc > L->stack && tbc->tbclist.delta == 0) 218 while (tbc > L->stack.p && tbc->tbclist.delta == 0)
219 tbc -= MAXDELTA; /* remove dummy nodes */ 219 tbc -= MAXDELTA; /* remove dummy nodes */
220 L->tbclist = tbc; 220 L->tbclist.p = tbc;
221} 221}
222 222
223 223
@@ -228,8 +228,8 @@ static void poptbclist (lua_State *L) {
228StkId luaF_close (lua_State *L, StkId level, int status, int yy) { 228StkId luaF_close (lua_State *L, StkId level, int status, int yy) {
229 ptrdiff_t levelrel = savestack(L, level); 229 ptrdiff_t levelrel = savestack(L, level);
230 luaF_closeupval(L, level); /* first, close the upvalues */ 230 luaF_closeupval(L, level); /* first, close the upvalues */
231 while (L->tbclist >= level) { /* traverse tbc's down to that level */ 231 while (L->tbclist.p >= level) { /* traverse tbc's down to that level */
232 StkId tbc = L->tbclist; /* get variable index */ 232 StkId tbc = L->tbclist.p; /* get variable index */
233 poptbclist(L); /* remove it from list */ 233 poptbclist(L); /* remove it from list */
234 prepcallclosemth(L, tbc, status, yy); /* close variable */ 234 prepcallclosemth(L, tbc, status, yy); /* close variable */
235 level = restorestack(L, levelrel); 235 level = restorestack(L, levelrel);