From 7532094f8593a3a0760a7cb453d960b009a6484c Mon Sep 17 00:00:00 2001
From: Alexander Lantsev <aunsane@gmail.com>
Date: Mon, 4 Apr 2016 10:31:38 +0000
Subject: MirLua: added MT::Index as fallback on missed key in metatable

git-svn-id: http://svn.miranda-ng.org/main/trunk@16585 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
---
 plugins/MirLua/src/m_database.cpp   | 17 ++++++-----------
 plugins/MirLua/src/mlua_metatable.h | 23 ++++++++++-------------
 2 files changed, 16 insertions(+), 24 deletions(-)

(limited to 'plugins/MirLua/src')

diff --git a/plugins/MirLua/src/m_database.cpp b/plugins/MirLua/src/m_database.cpp
index 246d96e9f6..a493970bfc 100644
--- a/plugins/MirLua/src/m_database.cpp
+++ b/plugins/MirLua/src/m_database.cpp
@@ -504,9 +504,8 @@ static luaL_Reg databaseApi[] =
 
 #define MT_DBCONTACTWRITESETTING "DBCONTACTWRITESETTING"
 
-static int dbcw__index(lua_State *L)
+int MT<DBCONTACTWRITESETTING>::Index(lua_State *L, DBCONTACTWRITESETTING *dbcw)
 {
-	DBCONTACTWRITESETTING *dbcw = (DBCONTACTWRITESETTING*)luaL_checkudata(L, 1, MT_DBCONTACTWRITESETTING);
 	const char *key = luaL_checkstring(L, 2);
 
 	if (mir_strcmpi(key, "Module") == 0)
@@ -542,7 +541,7 @@ static int dbcw__index(lua_State *L)
 			lua_pushnumber(L, dbcw->value.cpbVal);
 			luaM_pcall(L, 2, 1);
 		}
-			break;
+		break;
 		default:
 			lua_pushnil(L);
 		}
@@ -567,7 +566,7 @@ void MT<DBEVENTINFO>::Init(lua_State *L, DBEVENTINFO **dbei)
 	db_event_get((MEVENT)hDbEvent, (*dbei));
 }
 
-void MT<DBEVENTINFO>::Free(DBEVENTINFO **dbei)
+void MT<DBEVENTINFO>::Free(lua_State*, DBEVENTINFO **dbei)
 {
 	mir_free((*dbei)->pBlob);
 }
@@ -596,10 +595,8 @@ void MT<CONTACTINFO>::Init(lua_State *L, CONTACTINFO **ci)
 	(*ci)->hContact = hContact;
 }
 
-static int ci__index(lua_State *L)
+int MT<CONTACTINFO>::Index(lua_State *L, CONTACTINFO *ci)
 {
-	CONTACTINFO *ci = (CONTACTINFO*)luaL_checkudata(L, 1, MT_CONTACTINFO);
-
 	if (lua_isnumber(L, 2))
 		ci->dwFlag = lua_tointeger(L, 2);
 	else if (lua_isstring(L, 2))
@@ -709,8 +706,7 @@ LUAMOD_API int luaopen_m_database(lua_State *L)
 
 	MT<DBCONTACTWRITESETTING>(L, MT_DBCONTACTWRITESETTING)
 		.Field(&DBCONTACTWRITESETTING::szModule, "Module", LUA_TSTRINGA)
-		.Field(&DBCONTACTWRITESETTING::szSetting, "Setting", LUA_TSTRINGA)
-		.Method(dbcw__index, "__index");
+		.Field(&DBCONTACTWRITESETTING::szSetting, "Setting", LUA_TSTRINGA);
 	lua_pop(L, 1);
 
 	MT<DBEVENTINFO>(L, MT_DBEVENTINFO)
@@ -723,8 +719,7 @@ LUAMOD_API int luaopen_m_database(lua_State *L)
 	lua_pop(L, 1);
 
 	MT<CONTACTINFO>(L, "CONTACTINFO")
-		.Field(&CONTACTINFO::hContact, "hContact", LUA_TINTEGER)
-		.Method(ci__index, "__index");
+		.Field(&CONTACTINFO::hContact, "hContact", LUA_TINTEGER);
 	lua_pop(L, 1);
 
 	return 1;
diff --git a/plugins/MirLua/src/mlua_metatable.h b/plugins/MirLua/src/mlua_metatable.h
index b8fcdec22b..5048c39288 100644
--- a/plugins/MirLua/src/mlua_metatable.h
+++ b/plugins/MirLua/src/mlua_metatable.h
@@ -63,8 +63,13 @@ private:
 		//memcpy(*obj, udata, sizeof(T));
 		*obj = (T*)lua_touserdata(L, 1);
 	}
-	
-	static void Free(T **obj)
+
+	static int Index(lua_State *L, T */*obj*/)
+	{
+		lua_pushnil(L);
+	}
+
+	static void Free(lua_State */*L*/, T **obj)
 	{
 		*obj = NULL;
 	}
@@ -130,7 +135,7 @@ private:
 			lua_pushlightuserdata(L, field->GetValue<void*>(obj));
 			break;
 		default:
-			lua_pushnil(L);
+			return Index(L, obj);
 		}
 
 		return 1;
@@ -139,7 +144,8 @@ private:
 	static int lua__gc(lua_State *L)
 	{
 		T **obj = (T**)luaL_checkudata(L, 1, MT::name);
-		MT::Free(obj);
+		MT::Free(L, obj);
+
 		return 0;
 	}
 
@@ -176,15 +182,6 @@ public:
 		return *this;
 	}
 
-	MT& Method(lua_CFunction func, const char *name)
-	{
-		luaL_getmetatable(L, MT::name);
-		lua_pushcfunction(L, func);
-		lua_setfield(L, -2, name);
-		lua_pop(L, 1);
-		return *this;
-	}
-
 	static void Set(lua_State *L, T *obj)
 	{
 		if (obj == NULL)
-- 
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