mirror of
https://github.com/scummvm/scummvm.git
synced 2026-06-20 05:45:29 +00:00
Pawel Kolodziejski
67 lines
1.6 KiB
C++
67 lines
1.6 KiB
C++
/*
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** $Id$
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** Some generic functions over Lua objects
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** See Copyright Notice in lua.h
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*/
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#include <stdlib.h>
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#include "lobject.h"
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#include "lua.h"
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const char *luaO_typenames[] = { /* ORDER LUA_T */
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"userdata", "number", "string", "table", "function", "function", "task",
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"nil", "function", "mark", "mark", "mark", "line", NULL
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};
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TObject luaO_nilobject = {LUA_T_NIL, {NULL}};
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/* hash dimensions values */
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static int32 dimensions[] =
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{5, 11, 23, 47, 97, 197, 397, 797, 1597, 3203, 6421,
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12853, 25717, 51437, 102811, 205619, 411233, 822433,
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1644817, 3289613, 6579211, 13158023, MAX_INT};
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int32 luaO_redimension (int32 oldsize)
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{
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int32 i;
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for (i=0; dimensions[i]<MAX_INT; i++) {
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if (dimensions[i] > oldsize)
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return dimensions[i];
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}
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lua_error("table overflow");
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return 0; /* to avoid warnings */
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}
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int32 luaO_equalObj (TObject *t1, TObject *t2)
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{
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if (ttype(t1) != ttype(t2)) return 0;
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switch (ttype(t1)) {
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case LUA_T_NIL: return 1;
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case LUA_T_NUMBER: return nvalue(t1) == nvalue(t2);
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case LUA_T_STRING: case LUA_T_USERDATA: return svalue(t1) == svalue(t2);
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case LUA_T_ARRAY: return avalue(t1) == avalue(t2);
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case LUA_T_PROTO: return tfvalue(t1) == tfvalue(t2);
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case LUA_T_CPROTO: return fvalue(t1) == fvalue(t2);
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case LUA_T_CLOSURE: return t1->value.cl == t2->value.cl;
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case LUA_T_TASK: return nvalue(t1) == nvalue(t2);
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default:
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LUA_INTERNALERROR("invalid type");
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return 0; /* UNREACHABLE */
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}
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}
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void luaO_insertlist (GCnode *root, GCnode *node)
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{
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node->next = root->next;
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root->next = node;
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node->marked = 0;
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}
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