[dmd-internals] Correction to name mangling doc

[Sean Kelly]

One other thing.  The ABI has "i Number" under "Value" for templates, but demangle() doesn't handle this and the ABI is totally silent on what it is.  Any idea?  I suppose I could just check the DMD source though.

On Aug 30, 2010, at 2:22 PM, Sean Kelly wrote:

> I'd love for the current scheme to be considered a bug because it requires arbitrary lookahead to determine whether a symbol represents a template (see demangle.parseSymbolName, for example).  If the leading Number were removed then testing for template vs. LName would basically be a matter of checking for a digit vs. underscore.  For symbol names I've always followed C conventions, but I don't think the compiler restricts symbol names at all.
> 
> On Aug 30, 2010, at 1:00 PM, Don Clugston wrote:
> 
>> I'm not sure. See bug 3034 "Template instance name wrongly mangled as
>> LName". I don't know if that bug report is valid -- is it legal to
>> have a module name which starts with double underscores??? It does
>> seem to be accepted, though.
>> 
>> We need to either change the spec and mark the bug as invalid, or else
>> change the compiler and leave the spec as-is.
>> Another related mangling bug is 3043 "Template symbol arg cannot be
>> demangled", which I think is probably invalid.
>> 
>> On 30 August 2010 21:20, Sean Kelly <sean at invisibleduck.org> wrote:
>>> The ABI says this:
>>> 
>>> TemplateInstanceName:
>>>    __T LName TemplateArgs Z
>>> 
>>> and I think it should be:
>>> 
>>> TemplateInstanceName:
>>>    Number __T LName TemplateArgs Z
>>> 
>>> Any objection to my fixing it?
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