mirror of
https://github.com/scummvm/scummvm.git
synced 2026-06-20 05:45:29 +00:00
Pawel Kolodziejski
67 lines
1.5 KiB
C++
67 lines
1.5 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 "engine/lua/lobject.h"
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#include "engine/lua/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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};
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int32 luaO_redimension(int32 oldsize) {
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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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if (ttype(t1) != ttype(t2))
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return 0;
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switch (ttype(t1)) {
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case LUA_T_NIL:
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return 1;
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case LUA_T_NUMBER: return
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nvalue(t1) == nvalue(t2);
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case LUA_T_STRING:
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case LUA_T_USERDATA:
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return svalue(t1) == svalue(t2);
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case LUA_T_ARRAY:
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return avalue(t1) == avalue(t2);
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case LUA_T_PROTO:
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return tfvalue(t1) == tfvalue(t2);
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case LUA_T_CPROTO:
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return fvalue(t1) == fvalue(t2);
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case LUA_T_CLOSURE:
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return t1->value.cl == t2->value.cl;
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case LUA_T_TASK:
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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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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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