Big revamp in the implmentation of labels/gotos

Added restriction that, when a label is created, there cannot be
another label with the same name visible. That allows backward goto's
to be resolved when they are read. Backward goto's get a close if
they jump out of the scope of some variable; labels get a close only
if previous goto to it jumps out of the scope of some upvalue.

1 files changed, 0 insertions, 3 deletions

diff --git a/lcode.h b/lcode.h
index dd091c78..0758f88d 100644
--- a/lcode.h
+++ b/lcode.h
@@ -78,10 +78,7 @@ LUAI_FUNC void luaK_setoneret (FuncState *fs, expdesc *e);
 LUAI_FUNC int luaK_jump (FuncState *fs);
 LUAI_FUNC void luaK_ret (FuncState *fs, int first, int nret);
 LUAI_FUNC void luaK_patchlist (FuncState *fs, int list, int target);
-LUAI_FUNC void luaK_patchgoto (FuncState *fs, int list, int target,
-                               int hasclose);
 LUAI_FUNC void luaK_patchtohere (FuncState *fs, int list);
-LUAI_FUNC void luaK_patchclose (FuncState *fs, int list);
 LUAI_FUNC void luaK_concat (FuncState *fs, int *l1, int l2);
 LUAI_FUNC int luaK_getlabel (FuncState *fs);
 LUAI_FUNC void luaK_prefix (FuncState *fs, UnOpr op, expdesc *v, int line);