From b4164a9aa7760be7d66f90d6af5093b9ff26fb0c Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Wed, 28 Nov 2007 16:25:17 -0200
Subject: [PATCH] details

---
 lbaselib.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/lbaselib.c b/lbaselib.c
index 53a2a6e7..32fc8cb8 100644
--- a/lbaselib.c
+++ b/lbaselib.c
@@ -1,5 +1,5 @@
 /*
-** $Id: lbaselib.c,v 1.199 2007/10/17 17:26:39 roberto Exp roberto $
+** $Id: lbaselib.c,v 1.200 2007/10/25 19:31:05 roberto Exp roberto $
 ** Basic library
 ** See Copyright Notice in lua.h
 */
@@ -107,7 +107,7 @@ static int luaB_setmetatable (lua_State *L) {
   luaL_argcheck(L, t == LUA_TNIL || t == LUA_TTABLE, 2,
                     "nil or table expected");
   if (luaL_getmetafield(L, 1, "__metatable"))
-    luaL_error(L, "cannot change a protected metatable");
+    return luaL_error(L, "cannot change a protected metatable");
   lua_settop(L, 2);
   lua_setmetatable(L, 1);
   return 1;
@@ -124,8 +124,7 @@ static void getfunc (lua_State *L, int opt) {
       luaL_argerror(L, 1, "invalid level");
     lua_getinfo(L, "f", &ar);
     if (lua_isnil(L, -1))
-      luaL_error(L, "no function environment for tail call at level %d",
-                    level);
+      luaL_error(L, "no function environment for tail call at level %d", level);
   }
 }
 
@@ -152,8 +151,8 @@ static int luaB_setfenv (lua_State *L) {
     return 0;
   }
   else if (lua_iscfunction(L, -2) || lua_setfenv(L, -2) == 0)
-    luaL_error(L,
-          LUA_QL("setfenv") " cannot change environment of given object");
+    return luaL_error(L,
+             LUA_QL("setfenv") " cannot change environment of given object");
   return 1;
 }
 
@@ -315,8 +314,10 @@ static const char *generic_reader (lua_State *L, void *ud, size_t *size) {
     lua_replace(L, 3);  /* save string in a reserved stack slot */
     return lua_tolstring(L, 3, size);
   }
-  else luaL_error(L, "reader function must return a string");
-  return NULL;  /* to avoid warnings */
+  else {
+    luaL_error(L, "reader function must return a string");
+    return NULL;  /* to avoid warnings */
+  }
 }
 
 
@@ -473,7 +474,7 @@ static const luaL_Reg base_funcs[] = {
 static int auxresume (lua_State *L, lua_State *co, int narg) {
   int status;
   if (!lua_checkstack(co, narg))
-    luaL_error(L, "too many arguments to resume");
+    return luaL_error(L, "too many arguments to resume");
   if (lua_status(co) == LUA_OK && lua_gettop(co) == 0) {
     lua_pushliteral(L, "cannot resume dead coroutine");
     return -1;  /* error flag */
@@ -483,7 +484,7 @@ static int auxresume (lua_State *L, lua_State *co, int narg) {
   if (status == LUA_OK || status == LUA_YIELD) {
     int nres = lua_gettop(co);
     if (!lua_checkstack(L, nres))
-      luaL_error(L, "too many results to resume");
+      return luaL_error(L, "too many results to resume");
     lua_xmove(co, L, nres);  /* move yielded values */
     return nres;
   }