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update to lua 5.4.2

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Cloud Wu
2020-10-16 11:09:39 +08:00
parent 6dfdebc1a2
commit 8ea74c2b93
20 changed files with 296 additions and 310 deletions
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18
3rd/lua/lobject.h
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@@ -21,10 +21,12 @@
*/
#define LUA_TUPVAL LUA_NUMTYPES /* upvalues */
#define LUA_TPROTO (LUA_NUMTYPES+1) /* function prototypes */
#define LUA_TDEADKEY (LUA_NUMTYPES+2) /* removed keys in tables */
/*
** number of all possible types (including LUA_TNONE)
** number of all possible types (including LUA_TNONE but excluding DEADKEY)
*/
#define LUA_TOTALTYPES (LUA_TPROTO + 2)
@@ -556,7 +558,7 @@ typedef struct Proto {
/*
** {==================================================================
** Closures
** Functions
** ===================================================================
*/
@@ -744,13 +746,13 @@ typedef struct Table {
/*
** Use a "nil table" to mark dead keys in a table. Those keys serve
** to keep space for removed entries, which may still be part of
** chains. Note that the 'keytt' does not have the BIT_ISCOLLECTABLE
** set, so these values are considered not collectable and are different
** from any valid value.
** Dead keys in tables have the tag DEADKEY but keep their original
** gcvalue. This distinguishes them from regular keys but allows them to
** be found when searched in a special way. ('next' needs that to find
** keys removed from a table during a traversal.)
*/
#define setdeadkey(n) (keytt(n) = LUA_TTABLE, gckey(n) = NULL)
#define setdeadkey(node) (keytt(node) = LUA_TDEADKEY)
#define keyisdead(node) (keytt(node) == LUA_TDEADKEY)
/* }================================================================== */