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Change in the handling of 'L->top' when calling metamethods

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Instead of updating 'L->top' in every place that may call a
metamethod, the metamethod functions themselves (luaT_trybinTM and
luaT_callorderTM) correct the top. (When calling metamethods from
the C API, however, the callers must preserve 'L->top'.)
This commit is contained in:
Roberto Ierusalimschy
2019-07-26 14:59:39 -03:00
parent e70f275f32
commit b80077b8f3
10 changed files with 75 additions and 29 deletions
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ltm.h
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@@ -75,6 +75,7 @@ LUAI_FUNC void luaT_callTMres (lua_State *L, const TValue *f,
const TValue *p1, const TValue *p2, StkId p3);
LUAI_FUNC void luaT_trybinTM (lua_State *L, const TValue *p1, const TValue *p2,
StkId res, TMS event);
LUAI_FUNC void luaT_tryconcatTM (lua_State *L);
LUAI_FUNC void luaT_trybinassocTM (lua_State *L, const TValue *p1,
const TValue *p2, StkId res, int inv, TMS event);
LUAI_FUNC void luaT_trybiniTM (lua_State *L, const TValue *p1, lua_Integer i2,