Mangled symbols ending with Z?

[Peter Alexander]

On 4/12/11 6:47 PM, Martin Nowak wrote:
> On Sun, 04 Dec 2011 14:40:47 +0100, Peter Alexander
> <peter.alexander.au at gmail.com> wrote:
>
>> DMD outputs quite a few symbols that end with a Z. For example:
>>
>> module test;
>> class Foo {}
>>
>> Gives me these three symbols (all .data)
>>
>> 00013680 D _D4test4Foo16__initZ
>> 000136e0 D _D4test4Foo16__vtblZ
>> 00013690 D _D4test4Foo17__ClassZ
>>
>>
>> I have two questions:
>>
>> 1. I know what __init and __vtbl are, but what is __Class?
>>
> The typeinfo for a specific class, i.e. test.Foo.classinfo which
> is an instance of TypeInfo_Class.
>
>> 2. What does the Z at the end mean? The D ABI page doesn't describe
>> this in its grammar, and indeed std.demangle is unable to demangle
>> these symbols. It expects a type there, and Z represents no type.
>>
> It is used for additional compiler symbols.
> Z is used as terminal element for templates and non-variadic function
> arguments.
> You may have a look at dmd/src/tocsym.c to find the ones being used for
> compiler symbols.
>
>>
>> Once I know this, I will fix std.demangle so that it can parse these.

Makes sense.

Next question, what should they demangle to? :-)

_D4test3Foo6__initZ
1. test.Foo.init
2. test.Foo.__init
3. byte[] test.Foo.init
4. byte[] test.Foo.__init

_D4test3Foo6__vtblZ
1. test.Foo.vtbl
2. test.Foo.__vtbl
3. void*[] test.Foo.vtbl
4. void*[] test.Foo.__vtbl

_D4test3Foo7__ClassZ
1. test.Foo.classinfo
2. test.Foo.__Class
3. object.TypeInfo_Class test.Foo.classinfo
4. object.TypeInfo_Class test.Foo.__Class

?

I would say it should be the third one for all of them. Anyone else want 
to weigh in on this?