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- Subject: Re: What's a Lua object? Why LUA_TBOOLEAN and LUA_TLIGHTUSERDATA and LUA_TNUMBER are not Lua objects?
- From: 孙世龙 sunshilong <sunshilong369@...>
- Date: Tue, 20 Oct 2020 19:03:59 +0800
>there are lua objects,just not gc object.
LUA_TBOOLEAN、LUA_TLIGHTUSERDATA and LUA_TNUMBER are not gc objects?
On Tue, Oct 20, 2020 at 6:44 PM yang chao <yangchao1p@live.com> wrote:
>
> there are lua objects,just not gc object.
>
> > 在 2020年10月20日，下午5:10，孙世龙 sunshilong <sunshilong369@gmail.com> 写道：
> >
> > As per the comments in the lstate.h, which says that:
> > /*
> > ** macro to convert a Lua object into a GCObject
> > ** (The access to 'tt' tries to ensure that 'v' is actually a Lua object.)
> > */
> > #define obj2gco(v) check_exp((v)->tt >= LUA_TSTRING, &(cast_u(v)->gc)).
> >
> > If I understand the comments correctly, I can draw the conclusion that
> > LUA_TBOOLEAN and LUA_TLIGHTUSERDATA and LUA_TNUMBER are not Lua
> > objects.
> >
> > So, what's a Lua object?
> > Why LUA_TBOOLEAN、LUA_TLIGHTUSERDATA and LUA_TNUMBER are not Lua objects?
> >
> > Best regards
> > Sunshilong
