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Cleaner handling of errors in '__close' metamethods

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Instead of protecting each individual metamethod call, protect the
entire call to 'luaF_close'.
This commit is contained in:
Roberto Ierusalimschy
2020-12-28 11:40:30 -03:00
parent 0ceada8da9
commit 7af27ef59d
7 changed files with 80 additions and 75 deletions
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6
lfunc.h
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@@ -49,8 +49,8 @@
/* close upvalues without running their closing methods */
#define NOCLOSINGMETH (-1)
/* close upvalues running all closing methods in protected mode */
#define CLOSEPROTECT (-2)
/* special status to close upvalues preserving the top of the stack */
#define CLOSEKTOP (-2)
LUAI_FUNC Proto *luaF_newproto (lua_State *L);
@@ -59,7 +59,7 @@ LUAI_FUNC LClosure *luaF_newLclosure (lua_State *L, int nupvals);
LUAI_FUNC void luaF_initupvals (lua_State *L, LClosure *cl);
LUAI_FUNC UpVal *luaF_findupval (lua_State *L, StkId level);
LUAI_FUNC void luaF_newtbcupval (lua_State *L, StkId level);
LUAI_FUNC int luaF_close (lua_State *L, StkId level, int status);
LUAI_FUNC void luaF_close (lua_State *L, StkId level, int status);
LUAI_FUNC void luaF_unlinkupval (UpVal *uv);
LUAI_FUNC void luaF_freeproto (lua_State *L, Proto *f);
LUAI_FUNC const char *luaF_getlocalname (const Proto *func, int local_number,