From 9cd36059ad6f3f6750b8cff54c305ae347c6caca Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Mon, 10 Dec 2001 20:09:51 -0200
Subject: new API functions lua_getstr/lua_setstr

---
 liolib.c | 24 ++++++++----------------
 1 file changed, 8 insertions(+), 16 deletions(-)

(limited to 'liolib.c')

diff --git a/liolib.c b/liolib.c
index a4f6eed5..6d584572 100644
--- a/liolib.c
+++ b/liolib.c
@@ -73,8 +73,7 @@ static int pushresult (lua_State *L, int i) {
 static int checkfile (lua_State *L, int findex, const char *tname) {
   int res;
   lua_geteventtable(L, findex);
-  lua_pushstring(L, tname);
-  lua_gettable(L, LUA_REGISTRYINDEX);
+  lua_getstr(L, LUA_REGISTRYINDEX, tname);
   res = lua_equal(L, -1, -2);
   lua_pop(L, 2);
   return res;
@@ -112,8 +111,7 @@ static FILE *getopthandle (lua_State *L, int inout) {
 
 static void newfile (lua_State *L, FILE *f) {
   lua_newuserdatabox(L, f);
-  lua_pushliteral(L, FILEHANDLE);
-  lua_gettable(L, LUA_REGISTRYINDEX);
+  lua_getstr(L, LUA_REGISTRYINDEX, FILEHANDLE);
   lua_seteventtable(L, -2);
 }
 
@@ -149,8 +147,7 @@ static int io_close (lua_State *L) {
   int status = 1;
   if (f != stdin && f != stdout && f != stderr) {
     lua_settop(L, 1);  /* make sure file is on top */
-    lua_pushliteral(L, CLOSEDFILEHANDLE);
-    lua_gettable(L, LUA_REGISTRYINDEX);
+    lua_getstr(L, LUA_REGISTRYINDEX, CLOSEDFILEHANDLE);
     lua_seteventtable(L, 1);
     status = (CLOSEFILE(L, f) == 0);
   }
@@ -470,16 +467,14 @@ static int io_clock (lua_State *L) {
 */
 
 static void setfield (lua_State *L, const char *key, int value) {
-  lua_pushstring(L, key);
   lua_pushnumber(L, value);
-  lua_rawset(L, -3);
+  lua_setstr(L, -2, key);
 }
 
 
 static int getfield (lua_State *L, const char *key, int d) {
   int res;
-  lua_pushstring(L, key);
-  lua_rawget(L, -2);
+  lua_getstr(L, -1, key);
   if (lua_isnumber(L, -1))
     res = (int)(lua_tonumber(L, -1));
   else {
@@ -698,18 +693,15 @@ static const luaL_reg iolib[] = {
 
 
 LUALIB_API int lua_iolibopen (lua_State *L) {
-  lua_pushliteral(L, FILEHANDLE);
   lua_newtable(L);  /* event table for FILEHANDLE */
   /* close files when collected */
-  lua_pushliteral(L, "gc");
   lua_pushcfunction(L, file_collect);
-  lua_settable(L, -3);
+  lua_setstr(L, -2, "gc");
   /* put new eventtable into registry */
-  lua_settable(L, LUA_REGISTRYINDEX);  /* registry.FILEHANDLE = eventtable */
-  lua_pushliteral(L, CLOSEDFILEHANDLE);
+  lua_setstr(L, LUA_REGISTRYINDEX, FILEHANDLE);
   /* event table for CLOSEDFILEHANDLE */
   lua_newtable(L);
-  lua_settable(L, LUA_REGISTRYINDEX);
+  lua_setstr(L, LUA_REGISTRYINDEX, CLOSEDFILEHANDLE);
   luaL_openl(L, iolib);
   /* predefined file handles */
   newfilewithname(L, stdin, basicfiles[INFILE]);
-- 
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