On 26.07.2012 03:48, Walter Bright wrote:
On 7/25/2012 1:53 PM, Rainer Schuetze wrote:
The "edit-compile-debug loop" is a use case where the D module system
does not
shine so well. Compare build times when only editing a single source
file:
With the help of incremental linking, building a large C++ project
only takes
seconds.
In contrast, the D project usually recompiles everything from scratch
with every
little change.
I suspect that's one of two possibilities:
1. everything is passed on one command line to dmd. This, of course,
requires dmd to recompile everything.
2. modules are not separated into .d and .di files. Hence every module
that imports a .d file has to, at least, parse and semantically analyze
the whole thing, although it won't optimize or generate code for it.
I think working with di-files is too painful. A lot of the analysis in
imported files could be skipped.
As for incremental linking, optlink has always been faster at doing a
full link than the Microsoft linker does for an incremental link.
Agreed, incremental linking is just a work-around for the linkers slowness.
