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Re: corebase: use __builtin___CFStringMakeConstantString when available?
From: |
David Chisnall |
Subject: |
Re: corebase: use __builtin___CFStringMakeConstantString when available? |
Date: |
Wed, 28 Jun 2017 09:37:49 +0100 |
On 28 Jun 2017, at 01:19, Daniel Ferreira (theiostream) <address@hidden> wrote:
>
> That said, I need a way to place a valid Objective-C class definition
> in that symbol on compile-time (probably it'd be an empty subclass of
> NSCFString), but I'm totally unaware of any way to do that. Or maybe
> make that point to an ordinary _OBJC_CLASS_* symbol somehow. Any
> hints?
I’m a bit hesitant to suggest this, as it introduces some Objective-C ABI
dependency that I’d rather avoid, but you could do this by creating an alias
in the base file that declares the NSConstantString class.
Slightly longer term, I’d like to move to using a better structure for constant
Objective-C strings, with space for unicode flags and a hash (which we’d
compute at compile time, with a flag indicating which hashing algorithm we
used, so that we could recompute it if GNUstep wants to use a different hash
for strings, but have a fast path if the compiler and -base implementations
agree).
David
- corebase: use __builtin___CFStringMakeConstantString when available?, Daniel Ferreira (theiostream), 2017/06/27
- Re: corebase: use __builtin___CFStringMakeConstantString when available?, Ivan Vučica, 2017/06/27
- Re: corebase: use __builtin___CFStringMakeConstantString when available?, Fred Kiefer, 2017/06/27
- Re: corebase: use __builtin___CFStringMakeConstantString when available?, Ivan Vučica, 2017/06/27
- Re: corebase: use __builtin___CFStringMakeConstantString when available?, Daniel Ferreira (theiostream), 2017/06/27
- Re: corebase: use __builtin___CFStringMakeConstantString when available?, Fred Kiefer, 2017/06/28
- Re: corebase: use __builtin___CFStringMakeConstantString when available?, Richard Frith-Macdonald, 2017/06/28
- Re: corebase: use __builtin___CFStringMakeConstantString when available?,
David Chisnall <=
- Re: corebase: use __builtin___CFStringMakeConstantString when available?, Richard Frith-Macdonald, 2017/06/28
- Re: corebase: use __builtin___CFStringMakeConstantString when available?, Stefan Bidigaray, 2017/06/28