移植到Lua 5.2，LUA_GLOBALSINDEX麻烦 [英] Porting to Lua 5.2, LUA_GLOBALSINDEX trouble

问题描述

在代码示例中: http://lua-users.org/wiki/SimplerCppBinding

有代码:

lua_pushstring(L, T::className);
lua_pushvalue(L, methods);
lua_settable(L, LUA_GLOBALSINDEX);  //<--- LUA_GLOBALSINDEX removed in Lua 5.2

lua_pushliteral(L, "__metatable");
lua_pushvalue(L, methods);
lua_settable(L, metatable); 

在Lua 5.2中，LUA_GLOBALSINDEX不再存在.相反，它具有lua_setglobal()和lua_getglobal().

In Lua 5.2, LUA_GLOBALSINDEX no longer exists. Instead, it has lua_setglobal() and lua_getglobal().

我是否正确地认为:

lua_pushvalue(L, methods);
lua_setglobal(L, T::className);

...是以下各项的正确替代品

...is the correct replacement for:

lua_pushstring(L, T::className);
lua_pushvalue(L, methods);
lua_settable(L, LUA_GLOBALSINDEX);

我对Lua来说还太陌生，无法确定，我已经8个月没有使用它了.查看文档，我认为这是正确的，但需要验证.

I'm too new to Lua to be sure, I haven't used it for 8 months. Looking at the documentation, I'm thinking this is correct, but would like verification.

推荐答案

使用lua_setglobal(L,T::className);代替lua_settable(L,LUA_GLOBALSINDEX);.在Lua 5.1和5.2中都可以使用.

Instead of lua_settable(L,LUA_GLOBALSINDEX); use lua_setglobal(L,T::className);. That works in both Lua 5.1 and 5.2.

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