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authorRoberto Ierusalimschy <roberto@inf.puc-rio.br>2002-11-21 13:16:04 -0200
committerRoberto Ierusalimschy <roberto@inf.puc-rio.br>2002-11-21 13:16:04 -0200
commitddc144e4d297e5e008f5693a568a1c74ac3e4f54 (patch)
tree273211ca4e0add6f5aa9e28b494e94d3267fbcc3 /lapi.c
parentb48c6e768035a44ced1af0affa4b8c0970f1bdfd (diff)
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keep L->ci->base in L->base for faster access
Diffstat (limited to 'lapi.c')
-rw-r--r--lapi.c34
1 files changed, 17 insertions, 17 deletions
diff --git a/lapi.c b/lapi.c
index ece50de5..46f2e1a4 100644
--- a/lapi.c
+++ b/lapi.c
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: lapi.c,v 1.220 2002/11/14 16:15:53 roberto Exp roberto $ 2** $Id: lapi.c,v 1.221 2002/11/21 14:16:52 roberto Exp roberto $
3** Lua API 3** Lua API
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -36,7 +36,7 @@ const char lua_ident[] =
36#define api_check(L, o) /*{ assert(o); }*/ 36#define api_check(L, o) /*{ assert(o); }*/
37#endif 37#endif
38 38
39#define api_checknelems(L, n) api_check(L, (n) <= (L->top - L->ci->base)) 39#define api_checknelems(L, n) api_check(L, (n) <= (L->top - L->base))
40 40
41#define api_incr_top(L) {api_check(L, L->top < L->ci->top); L->top++;} 41#define api_incr_top(L) {api_check(L, L->top < L->ci->top); L->top++;}
42 42
@@ -45,14 +45,14 @@ const char lua_ident[] =
45 45
46static TObject *negindex (lua_State *L, int index) { 46static TObject *negindex (lua_State *L, int index) {
47 if (index > LUA_REGISTRYINDEX) { 47 if (index > LUA_REGISTRYINDEX) {
48 api_check(L, index != 0 && -index <= L->top - L->ci->base); 48 api_check(L, index != 0 && -index <= L->top - L->base);
49 return L->top+index; 49 return L->top+index;
50 } 50 }
51 else switch (index) { /* pseudo-indices */ 51 else switch (index) { /* pseudo-indices */
52 case LUA_REGISTRYINDEX: return registry(L); 52 case LUA_REGISTRYINDEX: return registry(L);
53 case LUA_GLOBALSINDEX: return gt(L); 53 case LUA_GLOBALSINDEX: return gt(L);
54 default: { 54 default: {
55 TObject *func = (L->ci->base - 1); 55 TObject *func = (L->base - 1);
56 index = LUA_GLOBALSINDEX - index; 56 index = LUA_GLOBALSINDEX - index;
57 api_check(L, iscfunction(func) && index <= clvalue(func)->c.nupvalues); 57 api_check(L, iscfunction(func) && index <= clvalue(func)->c.nupvalues);
58 return &clvalue(func)->c.upvalue[index-1]; 58 return &clvalue(func)->c.upvalue[index-1];
@@ -63,8 +63,8 @@ static TObject *negindex (lua_State *L, int index) {
63 63
64static TObject *luaA_index (lua_State *L, int index) { 64static TObject *luaA_index (lua_State *L, int index) {
65 if (index > 0) { 65 if (index > 0) {
66 api_check(L, index <= L->top - L->ci->base); 66 api_check(L, index <= L->top - L->base);
67 return L->ci->base + index - 1; 67 return L->base + index - 1;
68 } 68 }
69 else 69 else
70 return negindex(L, index); 70 return negindex(L, index);
@@ -73,8 +73,8 @@ static TObject *luaA_index (lua_State *L, int index) {
73 73
74static TObject *luaA_indexAcceptable (lua_State *L, int index) { 74static TObject *luaA_indexAcceptable (lua_State *L, int index) {
75 if (index > 0) { 75 if (index > 0) {
76 TObject *o = L->ci->base+(index-1); 76 TObject *o = L->base+(index-1);
77 api_check(L, index <= L->stack_last - L->ci->base); 77 api_check(L, index <= L->stack_last - L->base);
78 if (o >= L->top) return NULL; 78 if (o >= L->top) return NULL;
79 else return o; 79 else return o;
80 } 80 }
@@ -92,7 +92,7 @@ void luaA_pushobject (lua_State *L, const TObject *o) {
92LUA_API int lua_checkstack (lua_State *L, int size) { 92LUA_API int lua_checkstack (lua_State *L, int size) {
93 int res; 93 int res;
94 lua_lock(L); 94 lua_lock(L);
95 if ((L->top - L->ci->base + size) > LUA_MAXCSTACK) 95 if ((L->top - L->base + size) > LUA_MAXCSTACK)
96 res = 0; /* stack overflow */ 96 res = 0; /* stack overflow */
97 else { 97 else {
98 luaD_checkstack(L, size); 98 luaD_checkstack(L, size);
@@ -148,20 +148,20 @@ LUA_API lua_State *lua_newthread (lua_State *L) {
148 148
149 149
150LUA_API int lua_gettop (lua_State *L) { 150LUA_API int lua_gettop (lua_State *L) {
151 return (L->top - L->ci->base); 151 return (L->top - L->base);
152} 152}
153 153
154 154
155LUA_API void lua_settop (lua_State *L, int index) { 155LUA_API void lua_settop (lua_State *L, int index) {
156 lua_lock(L); 156 lua_lock(L);
157 if (index >= 0) { 157 if (index >= 0) {
158 api_check(L, index <= L->stack_last - L->ci->base); 158 api_check(L, index <= L->stack_last - L->base);
159 while (L->top < L->ci->base + index) 159 while (L->top < L->base + index)
160 setnilvalue(L->top++); 160 setnilvalue(L->top++);
161 L->top = L->ci->base + index; 161 L->top = L->base + index;
162 } 162 }
163 else { 163 else {
164 api_check(L, -(index+1) <= (L->top - L->ci->base)); 164 api_check(L, -(index+1) <= (L->top - L->base));
165 L->top += index+1; /* `subtract' index (index is negative) */ 165 L->top += index+1; /* `subtract' index (index is negative) */
166 } 166 }
167 lua_unlock(L); 167 lua_unlock(L);
@@ -763,7 +763,7 @@ LUA_API void lua_concat (lua_State *L, int n) {
763 luaC_checkGC(L); 763 luaC_checkGC(L);
764 api_checknelems(L, n); 764 api_checknelems(L, n);
765 if (n >= 2) { 765 if (n >= 2) {
766 luaV_concat(L, n, L->top - L->ci->base - 1); 766 luaV_concat(L, n, L->top - L->base - 1);
767 L->top -= (n-1); 767 L->top -= (n-1);
768 } 768 }
769 else if (n == 0) { /* push empty string */ 769 else if (n == 0) { /* push empty string */
@@ -791,8 +791,8 @@ LUA_API int lua_pushupvalues (lua_State *L) {
791 Closure *func; 791 Closure *func;
792 int n, i; 792 int n, i;
793 lua_lock(L); 793 lua_lock(L);
794 api_check(L, iscfunction(L->ci->base - 1)); 794 api_check(L, iscfunction(L->base - 1));
795 func = clvalue(L->ci->base - 1); 795 func = clvalue(L->base - 1);
796 n = func->c.nupvalues; 796 n = func->c.nupvalues;
797 luaD_checkstack(L, n + LUA_MINSTACK); 797 luaD_checkstack(L, n + LUA_MINSTACK);
798 for (i=0; i<n; i++) { 798 for (i=0; i<n; i++) {