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| author | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2017-04-11 15:41:09 -0300 |
|---|---|---|
| committer | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2017-04-11 15:41:09 -0300 |
| commit | a3d36fe283c09d4e56474da98f22d13162cc9fec (patch) | |
| tree | 1f6e2ed56d50dc14aa669fa5f31a63755abd4553 /lobject.h | |
| parent | 9569ad6b0ddcde43eb893d2cfe5bcdb715c0ff20 (diff) | |
| download | lua-github-a3d36fe283c09d4e56474da98f22d13162cc9fec.tar.gz | |
Upvalues collected like everything else (with mark-sweep) instead
of reference count (simpler and better for generational mode)
Diffstat (limited to 'lobject.h')
| -rw-r--r-- | lobject.h | 22 |
1 files changed, 17 insertions, 5 deletions
@@ -1,5 +1,5 @@ /* -** $Id: lobject.h,v 2.116 2015/11/03 18:33:10 roberto Exp roberto $ +** $Id: lobject.h,v 2.117 2016/08/01 19:51:24 roberto Exp roberto $ ** Type definitions for Lua objects ** See Copyright Notice in lua.h */ @@ -19,8 +19,9 @@ /* ** Extra tags for non-values */ -#define LUA_TPROTO LUA_NUMTAGS /* function prototypes */ -#define LUA_TDEADKEY (LUA_NUMTAGS+1) /* removed keys in tables */ +#define LUA_TUPVAL LUA_NUMTAGS /* upvalues */ +#define LUA_TPROTO (LUA_NUMTAGS+1) /* function prototypes */ +#define LUA_TDEADKEY (LUA_NUMTAGS+2) /* removed keys in tables */ /* ** number of all possible tags (including LUA_TNONE but excluding DEADKEY) @@ -431,9 +432,20 @@ typedef struct Proto { /* -** Lua Upvalues +** Upvalues for Lua closures */ -typedef struct UpVal UpVal; +typedef struct UpVal { + CommonHeader; + TValue *v; /* points to stack or to its own value */ + union { + struct { /* (when open) */ + struct UpVal *next; /* linked list */ + struct UpVal **previous; + } open; + TValue value; /* the value (when closed) */ + } u; +} UpVal; + /* |