[lld] registry design proposal

[Nick Kledzik]

On Dec 3, 2013, at 10:45 PM, Michael Spencer wrote:
> On Tue, Dec 3, 2013 at 6:18 PM, Nick Kledzik <kledzik at apple.com> wrote:
>> There is a design pattern that solves all these problems.  Have a global
>> registry of “handlers”.  Require clients to call functions to which register
>> the handlers they request.  Then any code that needs a handler calls the
>> global registry to call the needed handler.
>> 
>> I see the need for three registries:  a file parser registry, a yaml
>> document tag registry, and a kind string registry.
> 
> What would the kind string registry look like? Is the intent for
> converting from Native -> YAML -> Native? I assume the namespace would
> just be {COFF, ELF, MachO}, <arch>.
It would replace the use of methods relocKindFromString() and stringFromRelocKind()
in LinkingContext.  The native and yaml already have an "arch" field.  They'll
both need a "kind namespace" (need a better word for that) field added. 


-Nick