On 09/17/19 22:22, Andrew Fish wrote:
> 
> 
>> On Sep 17, 2019, at 1:06 PM, Ni, Ray <ray...@intel.com> wrote:
>>
>> Laszlo,
>> Thank you very much for this work.
>> They are quite helpful to detect potential issues.
>>
>> But without this specific patch being checked in, future break will still 
>> happen.
>> I don't want it to be checked in ASAP because I know that there are quite a 
>> lot of close source code that may get build break due to this change.
>> Besides that, what prevent you make the decision to check in the changes?
>>
> 
> Ray,
> 
> I was thinking the same thing. Could we make this an optional feature via a 
> #define? We could always default to the Spec Behavior, and new projects could 
> opt into the stricter version. 
> 
> #ifndef STRICTER_UEFI_TYPES
> typedef VOID    *EFI_PEI_FV_HANDLE;
> #else
> struct EFI_PEI_FV_OBJECT;
> typedef struct EFI_PEI_FV_OBJECT *EFI_PEI_FV_HANDLE;
> #endif

Technically, this would work well.

However, if we wanted to allow new projects to #define
STRICTER_UEFI_TYPES as their normal mode of operation (and not just for
a sanity check in CI), then we'd have to update the UEFI spec too.

Otherwise, code that is technically spec-conformant (albeit semantically
nonsensical), like I mentioned up-thread, would no longer compile:

  EFI_HANDLE Foobar;
  UINT64     Val;

  Foobar = &Val;

Thanks
Laszlo

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