DMD "preprocessed"-source output?
ary at esperanto.org.ar
Sun Oct 5 08:01:41 PDT 2008
Nick Sabalausky escribió:
> I don't suppose DMD has any way to output a copy of what the source files
> look like after things like mixins, CTFE and versions are applied? (Sort of
> like running a C compiler with a "preprocess-only" flag). I don't see
> anything like this in the listed command-line params, but maybe I missed it.
> I have a program (that makes heavy use of mixins and CTFE and such) that
> gives wildly different output between two different versions of DMD/Tango
> (Tango's documented "breaking changes" don't appear to be the culprit and
> nothing in DMD's changelog or the latest bugzilla entries seem to
> immediately stick out). I'm sure I can track it down, but it would help to
> narrow things down if I could run the "preprocessed" results from both
> environments through a file diff.
Just for fun, I'll make a view in Descent that will show you exactly
that. I believe DMD has all the information to output that, but not a
switch. It'll also help me detect easier if there's a bug in CTFE or
template instantiation (in Descent's port).
Note that this will turn things like:
const int x = 1 + 2 + 3 + 4;
const int x = 10;
const int x = someFuncThatCanBeEvaluatedAtCompileTime(2);
const int x = 20;
I don't know if this is good or bad...
I'll let you know when I'll have it done.
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