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userdata can have different tags

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This commit is contained in:
Roberto Ierusalimschy 1994-11-17 19:23:43 -02:00
parent aa4cd37adf
commit 1929ddcf49
3 changed files with 21 additions and 19 deletions
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10
hash.c
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@ -3,7 +3,7 @@
** hash manager for lua
*/
char *rcs_hash="$Id: hash.c,v 2.17 1994/11/16 17:38:08 roberto Exp roberto $";
char *rcs_hash="$Id: hash.c,v 2.18 1994/11/17 13:58:57 roberto Exp roberto $";
#include "mem.h"
#include "opcode.h"
@ -49,6 +49,9 @@ static int hashindex (Hash *t, Object *ref) /* hash function */
{
switch (tag(ref))
{
case LUA_T_NIL:
lua_reportbug ("unexpected type to index table");
return -1; /* UNREACHEABLE */
case LUA_T_NUMBER:
return (((int)nvalue(ref))%nhash(t));
case LUA_T_STRING:
@ -69,11 +72,8 @@ static int hashindex (Hash *t, Object *ref) /* hash function */
return (((int)fvalue(ref))%nhash(t));
case LUA_T_ARRAY:
return (((int)avalue(ref))%nhash(t));
case LUA_T_USERDATA:
default: /* user data */
return (((int)uvalue(ref))%nhash(t));
default:
lua_reportbug ("unexpected type to index table");
return -1; /* UNREACHEABLE */
}
}