On Monday, 27 May 2013 at 15:22:21 UTC, Peter Alexander wrote:
Am I the only person that worries greatly about the length of
symbols in D?
No, I do as well. My units of measurement project suffered from
very non-negligible code bloat due to symbol name length, and
even if that was a rather extraordinary endeavor to begin with,
"normal" D code is affected just as well. For example, try this
one from the std.algorithm unit tests:
———
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roduct744__T9MapResultS2353std9algorithm182__T16cartesianProductTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ16cartesianProduct16__funcliteral177TS3std5range472__T3ZipTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTkZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range91__T6RepeatTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ6RepeatTS3std5range91__T6RepeatTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ6RepeatZ3ZipZ9MapResultZ6ResultZ6RepeatZ3Zip
———
That's 13 kilobytes of data for a single symbol name! And the
whole file also crashes the MinGW as when debug info generation
is enabled, with the following rather hilarious error message:
"Fatal error: can't close
N:/Build/Work/ldc2-llvm3.3-release/runtime/phobos_std_algorithm_debug.o:
File too big"
So, yes, your guess on Twitter a few days ago was correct.
David
