On Wednesday, 31 July 2013 at 12:23:42 UTC, dennis luehring wrote:
Am 31.07.2013 14:09, schrieb JS:
It would be nice to be able to have a precompilation step that
produces a d output file that is the "mixed down" version with
all the string mixins computed. This would allow one to look at
the files, allow better code analysis/error messages, and
intellisense and other things to be useful.
A simple compiler switch would do the trick to enable such a
feature. *.dc files could be generated, or whatever, for each d
file if it uses string mixins(I suppose template mixins could
also be reduced).
what about something that catches mixin results into a static
compiletime strings
template GenStruct(string Name, string M1)
{
const char[] GenStruct = "struct " ~ Name ~ "{ int " ~ M1 ~
"; }";
}
which generates:
struct Foo { int bar; }
catch_generated_output(my_mixin_output)
{
mixin(GenStruct!("Foo", "bar"));
}
pragma(msg, my_mixin_output);
prints:
struct Foo { int bar; }
I already do that... When you do that with nested templates it
creates a huge mess... also errors are useless... as the point to
the mixin string.
Simple examples are easy to come up with but don't demonstrate
how useless they can be.