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Make pseudo-indices relative to LUAI_MAXCSTACK (#766)

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This is useful in particular if redefine `LUAI_MAXCSTACK` to a higher
value than the current one (8000).
Ie. passing `-D LUAI_MAXCSTACK=1000000` would not work as overlaps with
`LUA_REGISTRYINDEX` and below.
This commit is contained in:
Alex Orlenko 2022-12-06 19:20:24 +00:00 committed by GitHub
parent 4e6ae32625
commit e9d4ee7a33
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1 changed files with 3 additions and 3 deletions
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6
VM/include/lua.h
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@ -17,9 +17,9 @@
/*
** pseudo-indices
*/
#define LUA_REGISTRYINDEX (-10000)
#define LUA_ENVIRONINDEX (-10001)
#define LUA_GLOBALSINDEX (-10002)
#define LUA_REGISTRYINDEX (-LUAI_MAXCSTACK - 2000)
#define LUA_ENVIRONINDEX (-LUAI_MAXCSTACK - 2001)
#define LUA_GLOBALSINDEX (-LUAI_MAXCSTACK - 2002)
#define lua_upvalueindex(i) (LUA_GLOBALSINDEX - (i))
#define lua_ispseudo(i) ((i) <= LUA_REGISTRYINDEX)