From 6aabf4b15e7637c2ab4133abf3df0a77f34b6005 Mon Sep 17 00:00:00 2001
From: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date: Wed, 14 Dec 2022 16:20:39 -0300
Subject: [PATCH] Details in some header files

Identifier LUA_NUMTAGS was deprecated (changed to LUA_NUMTYPES) +
better handling of some inclusion loops.
---
 lstate.h | 11 ++++++++---
 ltm.h    |  5 +++--
 lua.h    | 16 ++++++++++------
 3 files changed, 21 insertions(+), 11 deletions(-)

diff --git a/lstate.h b/lstate.h
index 2e907818..8bf6600e 100644
--- a/lstate.h
+++ b/lstate.h
@@ -9,6 +9,11 @@
 
 #include "lua.h"
 
+
+/* Some header files included here need this definition */
+typedef struct CallInfo CallInfo;
+
+
 #include "lobject.h"
 #include "ltm.h"
 #include "lzio.h"
@@ -169,7 +174,7 @@ typedef struct stringtable {
 ** - field 'transferinfo' is used only during call/returnhooks,
 ** before the function starts or after it ends.
 */
-typedef struct CallInfo {
+struct CallInfo {
   StkIdRel func;  /* function index in the stack */
   StkIdRel	top;  /* top for this function */
   struct CallInfo *previous, *next;  /* dynamic call link */
@@ -196,7 +201,7 @@ typedef struct CallInfo {
   } u2;
   short nresults;  /* expected number of results from this function */
   unsigned short callstatus;
-} CallInfo;
+};
 
 
 /*
@@ -291,7 +296,7 @@ typedef struct global_State {
   struct lua_State *mainthread;
   TString *memerrmsg;  /* message for memory-allocation errors */
   TString *tmname[TM_N];  /* array with tag-method names */
-  struct Table *mt[LUA_NUMTAGS];  /* metatables for basic types */
+  struct Table *mt[LUA_NUMTYPES];  /* metatables for basic types */
   TString *strcache[STRCACHE_N][STRCACHE_M];  /* cache for strings in API */
   lua_WarnFunction warnf;  /* warning function */
   void *ud_warn;         /* auxiliary data to 'warnf' */
diff --git a/ltm.h b/ltm.h
index 73b833c6..c309e2ae 100644
--- a/ltm.h
+++ b/ltm.h
@@ -9,6 +9,7 @@
 
 
 #include "lobject.h"
+#include "lstate.h"
 
 
 /*
@@ -95,8 +96,8 @@ LUAI_FUNC int luaT_callorderiTM (lua_State *L, const TValue *p1, int v2,
                                  int inv, int isfloat, TMS event);
 
 LUAI_FUNC void luaT_adjustvarargs (lua_State *L, int nfixparams,
-                                   struct CallInfo *ci, const Proto *p);
-LUAI_FUNC void luaT_getvarargs (lua_State *L, struct CallInfo *ci,
+                                   CallInfo *ci, const Proto *p);
+LUAI_FUNC void luaT_getvarargs (lua_State *L, CallInfo *ci,
                                               StkId where, int wanted);
 
 
diff --git a/lua.h b/lua.h
index bfba4d1e..feb3dbc5 100644
--- a/lua.h
+++ b/lua.h
@@ -131,6 +131,16 @@ typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize);
 typedef void (*lua_WarnFunction) (void *ud, const char *msg, int tocont);
 
 
+/*
+** Type used by the debug API to collect debug information
+*/
+typedef struct lua_Debug lua_Debug;
+
+
+/*
+** Functions to be called by the debugger in specific events
+*/
+typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);
 
 
 /*
@@ -442,12 +452,6 @@ LUA_API void (lua_closeslot) (lua_State *L, int idx);
 #define LUA_MASKLINE	(1 << LUA_HOOKLINE)
 #define LUA_MASKCOUNT	(1 << LUA_HOOKCOUNT)
 
-typedef struct lua_Debug lua_Debug;  /* activation record */
-
-
-/* Functions to be called by the debugger in specific events */
-typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);
-
 
 LUA_API int (lua_getstack) (lua_State *L, int level, lua_Debug *ar);
 LUA_API int (lua_getinfo) (lua_State *L, const char *what, lua_Debug *ar);