H. S. Teoh wrote:
On Thu, Dec 07, 2017 at 01:21:11AM +0000, Nicholas Wilson via
Digitalmars-d wrote:
I'd like to add an attribute to indicate that the annotated function
is only available at compile time so that in cases where the operation
is invalid at runtime (strings and concatenation on a GPU for
instance) but the result is only used at compile time (for a mixin)
the compiler is free to not codegen that function.
I can add this to LDC pretty easily, but does anyone else have a use
for this (e.g. shrinking binary sizes for mixin heavy codebases) and
would benefit having this as a standard thing?
I'd like to have this too. Some of my template-heavy code use a good
number of CTFE-only functions that are only called at compile-time.
Since they are nested inside the template, they do quickly add up to a
lot of dead code in the executable. Having a @ctfeonly annotation that
tells the compiler not to codegen the (many instantiations of the)
function would be greatly welcomed.
T
this is a hack for something that really should be done in linker,
automatically. please, people, let's not turn D into C++! ;-)
i mean: this has a short-time benefits, but makes the language more
complex, less clear, and completely destroys any incentive to make
smartlinking work as intended in case it is broken.
