• Timothee Cour (2/2) May 26 2013 Is there any plan to support demangling of those: __ModuleInfoZ __initZ
• Daniel Murphy (3/5) May 26 2013 http://d.puremagic.com/issues/
• Timothee Cour (2/8) May 28 2013
• deadalnix (4/7) May 26 2013 I have a lot of stuff that do not demangle properly with any
• Peter Alexander (3/10) May 27 2013 Am I the only person that worries greatly about the length of
• David Nadlinger (17/19) May 27 2013 No, I do as well. My units of measurement project suffered from
• Maxim Fomin (4/23) May 27 2013 This also breaks forum software which shows one line string.
• Peter Alexander (4/11) May 27 2013 The symbols typically contain a lot of repeated sub strings.
• deadalnix (3/15) May 27 2013 The way template are mangled in super redundant. This can
• David Nadlinger (3/5) May 27 2013 At this point, ABI stability is still is a long way out anyway.
• Timothee Cour (13/35) May 28 2013 Are you referring to the way that a template name is repeated twice in i...
• Martin Nowak (2/4) May 28 2013 How would you mangle them instead?
• deadalnix (3/9) May 28 2013 templateSymbolKKKtepplateArguments
• Steven Schveighoffer (6/8) May 28 2013 Nothing is breakage before shared library support is ready. And it's
• David Nadlinger (15/17) May 28 2013 This comment makes me slightly nervous, as I think even then, we
• Steven Schveighoffer (15/30) May 28 2013 Like it or not, dynamic library support means we need to pay more
• Johannes Pfau (11/28) May 29 2013 We only have to do the library versioning right. If we increase the
• Mike Wey (7/8) May 29 2013 The phobos make file currently builds libphobos2.so.0.63.0 and uses
• Walter Bright (6/8) Dec 06 2013 Rather than a new scheme, a simple and effective approach is to compress...
• H. S. Teoh (15/27) Dec 06 2013 Looking like noise shouldn't be a problem, as long as ddemangle is
• Andrei Alexandrescu (18/29) May 27 2013 T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ6Repeat...
• Peter Alexander (3/6) May 27 2013 Surely a better solution would be to use a lossless compression?
• Diggory (3/11) May 27 2013 It could even be (somewhat) backward compatible if you have a
• deadalnix (5/13) May 27 2013 I'd begin with the mangling of template. It is by definition
• Martin Nowak (2/3) May 28 2013 Yeah, I would hate to loose the ability to demangle a symbol.
• Andrei Alexandrescu (4/8) May 28 2013 Well we'd need a scheme that compresses to text, e.g. binary compression...
• deadalnix (3/6) May 27 2013 Reverse lookup never worked for this kind of symbols in the first
• Jacob Carlborg (17/34) May 28 2013 eVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ6RepeatTS3std5ra...
• Martin Nowak (3/4) May 28 2013 I wouldn't really call this code bloat, as it only affects your object
• David Nadlinger (3/7) May 28 2013 And unstripped executables.
• Max Samukha (2/14) Dec 07 2013 No. That's a significant problem.

Timothee Cour <thelastmammoth gmail.com> writes:

Is there any plan to support demangling of those: __ModuleInfoZ __initZ
__arrayZ ?

"Daniel Murphy" <yebblies nospamgmail.com> writes:

"Timothee Cour" <thelastmammoth gmail.com> wrote in message 
news:mailman.207.1369611513.13711.digitalmars-d puremagic.com...
 Is there any plan to support demangling of those: __ModuleInfoZ __initZ
 __arrayZ ?

http://d.puremagic.com/issues/ 

Timothee Cour <thelastmammoth gmail.com> writes:

ok, reported here: bugzilla:10189

On Sun, May 26, 2013 at 9:03 PM, Daniel Murphy <yebblies nospamgmail.com>wrote:

 "Timothee Cour" <thelastmammoth gmail.com> wrote in message
 news:mailman.207.1369611513.13711.digitalmars-d puremagic.com...
 Is there any plan to support demangling of those: __ModuleInfoZ __initZ
 __arrayZ ?

 http://d.puremagic.com/issues/

"deadalnix" <deadalnix gmail.com> writes:

On Sunday, 26 May 2013 at 23:38:33 UTC, Timothee Cour wrote:
 Is there any plan to support demangling of those: __ModuleInfoZ 
 __initZ
 __arrayZ ?

I have a lot of stuff that do not demangle properly with any 
tools. I give you one, just for fun :D

D1d6parser9statement308__T14parseStatementTS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ14parseStatementFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement1004__T28parseDeclarationOrExpressionS6781d6parser9statement308__T14parseStatementTS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ14parseStatementFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement13__dgliteral23TS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ28parseDeclarationOrExpressionMFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement2029__T14parseAmbiguousS17161d6parser9statement308__T14parseStatementTS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ14parseStatementFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement1004__T28parseDeclarationOrExpressionS6781d6parser9statement308__T14parseStatementTS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ14parseStatementFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement13__dgliteral23TS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ28parseDeclarationOrExpressionM12__dgliteral9TS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3

"Peter Alexander" <peter.alexander.au gmail.com> writes:

On Monday, 27 May 2013 at 04:12:23 UTC, deadalnix wrote:
 On Sunday, 26 May 2013 at 23:38:33 UTC, Timothee Cour wrote:
 Is there any plan to support demangling of those: 
 __ModuleInfoZ __initZ
 __arrayZ ?

 I have a lot of stuff that do not demangle properly with any 
 tools. I give you one, just for fun :D

 D1d6parser9statement308__T14parseStatementTS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ14parseStatementFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement1004__T28parseDeclarationOrExpressionS6781d6parser9statement308__T14parseStatementTS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ14parseStatementFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement13__dgliteral23TS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ28parseDeclarationOrExpressionMFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement2029__T14parseAmbiguousS17161d6parser9statement308__T14parseStatementTS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ14parseStatementFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement1004__T28parseDeclarationOrExpressionS6781d6parser9statement308__T14parseStatementTS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ14parseStatementFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement13__dgliteral23TS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ28parseDeclarationOrExpressionM12__dgliteral9TS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3

Am I the only person that worries greatly about the length of 
symbols in D?

"David Nadlinger" <see klickverbot.at> writes:

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:

———
_D3std5range4308__T3ZipTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTkZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std9algorithm987__T6joinerTS3std9algorithm182__T16cartesianProductTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ16cartesianProduct744__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__T5TupleTiZ5TupleZ8SequenceZ6RepeatZ3ZipZ9MapResultZ6joinerFS3std9algorithm182__T16cartesianProductTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ16cartesianProduct744__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__T5TupleTiZ5TupleZ8SequenceZ6RepeatZ3ZipZ9MapResultZ6ResultTS3std5range91__T6RepeatTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ6RepeatTS3std5range2008__T6RepeatTS3std9algorithm987__T6joinerTS3std9algorithm182__T16cartesianProductTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ16cartesianProduct744__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__T5TupleTiZ5TupleZ8SequenceZ6RepeatZ3ZipZ9MapResultZ6joinerFS3std9algorithm182__T16cartesianProductTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ16cartesianProduct744__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__T5TupleTiZ5TupleZ8SequenceZ6RepeatZ3ZipZ9MapResultZ6ResultZ6RepeatZ3Zip8opAssignMFNcS3std5range4308__T3ZipTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTkZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std9algorithm987__T6joinerTS3std9algorithm182__T16cartesianProductTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ16cartesianProduct744__T9MapResultS2353std9algorithm182__T16cartesianProductTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ16cartesia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———

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

"Maxim Fomin" <maxim maxim-fomin.ru> writes:

On Monday, 27 May 2013 at 16:18:34 UTC, David Nadlinger wrote:
 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:

 ———
 <13 kb of mangling>
 ———

 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

This also breaks forum software which shows one line string. 
Interesting issue here is whether mangling would be reduced (I 
guess it wouldn't).

"Peter Alexander" <peter.alexander.au gmail.com> writes:

On Monday, 27 May 2013 at 16:18:34 UTC, David Nadlinger wrote:
 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?

 ———
 <snip>
 ———

 That's 13 kilobytes of data for a single symbol name!

The symbols typically contain a lot of repeated sub strings. 
Perhaps there is a better mangling scheme that encodes it with 
some kind of prefix tree?

"deadalnix" <deadalnix gmail.com> writes:

On Monday, 27 May 2013 at 18:14:59 UTC, Peter Alexander wrote:
 On Monday, 27 May 2013 at 16:18:34 UTC, David Nadlinger wrote:
 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?

 ———
 <snip>
 ———

 That's 13 kilobytes of data for a single symbol name!

 The symbols typically contain a lot of repeated sub strings. 
 Perhaps there is a better mangling scheme that encodes it with 
 some kind of prefix tree?

The way template are mangled in super redundant. This can 
probably be fixed easily, but this is a breakage.

"David Nadlinger" <see klickverbot.at> writes:

On Monday, 27 May 2013 at 18:22:41 UTC, deadalnix wrote:
 The way template are mangled in super redundant. This can 
 probably be fixed easily, but this is a breakage.

At this point, ABI stability is still is a long way out anyway.

David

Timothee Cour <thelastmammoth gmail.com> writes:

 The way template are mangled in super redundant.

Are you referring to the way that a template name is repeated twice in its
mangled representation ?
eg:
template ABC(T){struct ABC{}}
writeln(ABC!int.mangleof); // S5tests18main10__T3ABCTiZ3ABC =3D>
corresponding to ABC!(int).ABC
How would we distinguish such cases (eponymous templates) from
non-eponymous ones:
template ABC(T){struct a1{} struct a2}
here we need: ABC!(int).a1 and ABC!(int).a2.
Maybe these 2 cases should be distinguished.


On Mon, May 27, 2013 at 11:22 AM, deadalnix <deadalnix gmail.com> wrote:

 On Monday, 27 May 2013 at 18:14:59 UTC, Peter Alexander wrote:

 On Monday, 27 May 2013 at 16:18:34 UTC, David Nadlinger wrote:

 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?

 =97=97=97
 <snip>
 =97=97=97

 That's 13 kilobytes of data for a single symbol name!

 The symbols typically contain a lot of repeated sub strings. Perhaps
 there is a better mangling scheme that encodes it with some kind of pref=


ix
 tree?

 The way template are mangled in super redundant. This can probably be
 fixed easily, but this is a breakage.

Martin Nowak <code dawg.eu> writes:

On 05/27/2013 08:22 PM, deadalnix wrote:
 The way template are mangled in super redundant. This can probably be
 fixed easily, but this is a breakage.

How would you mangle them instead?

"deadalnix" <deadalnix gmail.com> writes:

On Tuesday, 28 May 2013 at 12:56:15 UTC, Martin Nowak wrote:
 On 05/27/2013 08:22 PM, deadalnix wrote:
 The way template are mangled in super redundant. This can 
 probably be
 fixed easily, but this is a breakage.

 How would you mangle them instead?

templateSymbolKKKtepplateArguments

Where KKK is anything, really, as long as it is unambiguous.

"Steven Schveighoffer" <schveiguy yahoo.com> writes:

On Mon, 27 May 2013 14:22:40 -0400, deadalnix <deadalnix gmail.com> wrote:

 The way template are mangled in super redundant. This can probably be  
 fixed easily, but this is a breakage.

Nothing is breakage before shared library support is ready.  And it's  
almost ready...

This should be addressed sooner rather than later.  And I think it's  
really important.

-Steve

"David Nadlinger" <see klickverbot.at> writes:

On Tuesday, 28 May 2013 at 19:01:00 UTC, Steven Schveighoffer 
wrote:
 Nothing is breakage before shared library support is ready.  
 And it's almost ready...

This comment makes me slightly nervous, as I think even then, we 
shouldn't be too quick to commit to ABI stability. Quite on the 
contrary, we need to make sure to aggressively tell users that 
they can't expect two pieces D code that were not compiled with 
the exact same compiler version to interoperate.

One of the reasons is that we keep breaking ABI compatibility in 
Phobos with just about every single release.

And the more important and fundamental one is that we don't 
actually have a well-defined ABI right now (i.e. that is actually 
documented in the spec), which would also need to be actually 
implementable by all of DMD, GDC and LDC. Not to mention the many 
quirks and bugs in the current implementation.

David

"Steven Schveighoffer" <schveiguy yahoo.com> writes:

On Tue, 28 May 2013 17:13:59 -0400, David Nadlinger <see klickverbot.at>  
wrote:

 On Tuesday, 28 May 2013 at 19:01:00 UTC, Steven Schveighoffer wrote:
 Nothing is breakage before shared library support is ready.  And it's  
 almost ready...

 This comment makes me slightly nervous, as I think even then, we  
 shouldn't be too quick to commit to ABI stability. Quite on the  
 contrary, we need to make sure to aggressively tell users that they  
 can't expect two pieces D code that were not compiled with the exact  
 same compiler version to interoperate.

Like it or not, dynamic library support means we need to pay more  
attention to ABI breakage.  People will complain about what largely is not  
really a problem (since code is statically compiled, you essentially build  
it every time anyway).

This isn't to say we can't put a big fat warning, but we will have to  
resist a new onslaught of "please don't release this compiler, it breaks  
all my customer's installations!" complaints.

 One of the reasons is that we keep breaking ABI compatibility in Phobos  
 with just about every single release.

Again, this isn't a huge issue when everything is static.  When things are  
dynamic, you can't even be sure what the target system HAS on it,  
stability is really important.

 And the more important and fundamental one is that we don't actually  
 have a well-defined ABI right now (i.e. that is actually documented in  
 the spec), which would also need to be actually implementable by all of  
 DMD, GDC and LDC. Not to mention the many quirks and bugs in the current  
 implementation.

That has to be resolved too, but it may not be as interesting to someone  
who wants to fix mangling.  We can accept both fixes simultaneously :)

-Steve

Johannes Pfau <nospam example.com> writes:

Am Tue, 28 May 2013 18:26:08 -0400
schrieb "Steven Schveighoffer" <schveiguy yahoo.com>:

 On Tue, 28 May 2013 17:13:59 -0400, David Nadlinger
 <see klickverbot.at> wrote:
 
 On Tuesday, 28 May 2013 at 19:01:00 UTC, Steven Schveighoffer wrote:
 Nothing is breakage before shared library support is ready.  And
 it's almost ready...

 This comment makes me slightly nervous, as I think even then, we  
 shouldn't be too quick to commit to ABI stability. Quite on the  
 contrary, we need to make sure to aggressively tell users that
 they can't expect two pieces D code that were not compiled with the
 exact same compiler version to interoperate.

 
 Like it or not, dynamic library support means we need to pay more  
 attention to ABI breakage.  People will complain about what largely
 is not really a problem (since code is statically compiled, you
 essentially build it every time anyway).

We only have to do the library versioning right. If we increase the
major version with every release we can break the ABI as much as we
want. Older applications the will always use the old shared libraries,
newer application the new ones. This means you'll have 3-4 copies of
phobos/druntime on your system, but I don't think that is an issue.

I agree with David that stabilizing the ABI is not a good idea right
now. We don't have a standard ABI, toString/toHash might need to be
removed which will break everything, we have some modules in phobos that
should be replaced ASAP (std.stream, std.xml)...

Mike Wey <mike-wey example.com> writes:

On 05/29/2013 09:09 AM, Johannes Pfau wrote:
 We only have to do the library versioning right.

The phobos make file currently builds libphobos2.so.0.63.0 and uses 
libphobos2.so.0.63 as the soname. So an app linked with the shared 
phobos will be using libphobos2.so.0.63, the .63 comes from the 
dmd/phobos version and can be dropped when the ABI is stable.

-- 
Mike Wey

Walter Bright <newshound2 digitalmars.com> writes:

On 5/27/2013 11:14 AM, Peter Alexander wrote:
 The symbols typically contain a lot of repeated sub strings. Perhaps there is a
 better mangling scheme that encodes it with some kind of prefix tree?

Rather than a new scheme, a simple and effective approach is to compress using 
lzw. Lzw is nicely reversible, too, though the symbols will look like tty noise 
in the linker maps and the debugger.

One approach is to lzw them only if they exceed a certain length, and to leave
a 
prefix that makes some sense to the user, like the function name.

"H. S. Teoh" <hsteoh quickfur.ath.cx> writes:

On Fri, Dec 06, 2013 at 03:26:53PM -0800, Walter Bright wrote:
 On 5/27/2013 11:14 AM, Peter Alexander wrote:
The symbols typically contain a lot of repeated sub strings. Perhaps
there is a better mangling scheme that encodes it with some kind of
prefix tree?

 
 Rather than a new scheme, a simple and effective approach is to
 compress using lzw. Lzw is nicely reversible, too, though the symbols
 will look like tty noise in the linker maps and the debugger.
 
 One approach is to lzw them only if they exceed a certain length, and
 to leave a prefix that makes some sense to the user, like the function
 name.

Looking like noise shouldn't be a problem, as long as ddemangle is
updated to be able to interpret them. I doubt very many people can
demangle D symbols in their head anyway; most would use ddemangle.

Leaving the function name in is a good compromise, though not strictly
necessary if ddemangle can interpret the lzw noise.

On that note, core.demangle seriously needs to be able to demangle *all*
mangled symbols (like module ctors, typeinfos, vtables, etc.), not just
function symbols. Running `nm program | ddemangle` still leaves about
half the symbols mangled, which is annoying when you're trying to figure
out what those symbols are referring to.


T

-- 
Marketing: the art of convincing people to pay for what they didn't need
before which you can't deliver after.

Andrei Alexandrescu <SeeWebsiteForEmail erdani.org> writes:

On 5/27/13 12:18 PM, David Nadlinger wrote:
 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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eatTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ6RepeatZ3ZipZ9MapResultZ6ResultZ6RepeatZ3Zip
 ———

At some point Walter and I were talking about generating an MD hash for 
very long names. That has some disadvantages (i.e. no easy reverse 
lookup) but it may work.

Andrei

"Peter Alexander" <peter.alexander.au gmail.com> writes:

On Monday, 27 May 2013 at 20:14:35 UTC, Andrei Alexandrescu wrote:
 At some point Walter and I were talking about generating an MD 
 hash for very long names. That has some disadvantages (i.e. no 
 easy reverse lookup) but it may work.

Surely a better solution would be to use a lossless compression? 
With the amount of repetition you should get very high ratios.

"Diggory" <diggsey googlemail.com> writes:

On Monday, 27 May 2013 at 20:34:30 UTC, Peter Alexander wrote:
 On Monday, 27 May 2013 at 20:14:35 UTC, Andrei Alexandrescu 
 wrote:
 At some point Walter and I were talking about generating an MD 
 hash for very long names. That has some disadvantages (i.e. no 
 easy reverse lookup) but it may work.

 Surely a better solution would be to use a lossless 
 compression? With the amount of repetition you should get very 
 high ratios.

It could even be (somewhat) backward compatible if you have a 
marker at the front indicating whether it's compressed or not.

"deadalnix" <deadalnix gmail.com> writes:

On Monday, 27 May 2013 at 20:34:30 UTC, Peter Alexander wrote:
 On Monday, 27 May 2013 at 20:14:35 UTC, Andrei Alexandrescu 
 wrote:
 At some point Walter and I were talking about generating an MD 
 hash for very long names. That has some disadvantages (i.e. no 
 easy reverse lookup) but it may work.

 Surely a better solution would be to use a lossless 
 compression? With the amount of repetition you should get very 
 high ratios.

I'd begin with the mangling of template. It is by definition 
redundant, and changing it without any compression scheme can 
already drastically reduce the pathologic cases demonstrated in 
this thread.

Martin Nowak <code dawg.eu> writes:

On 05/27/2013 10:34 PM, Peter Alexander wrote:
 Surely a better solution would be to use a lossless compression?

Yeah, I would hate to loose the ability to demangle a symbol.

Andrei Alexandrescu <SeeWebsiteForEmail erdani.org> writes:

On 5/28/13 8:57 AM, Martin Nowak wrote:
 On 05/27/2013 10:34 PM, Peter Alexander wrote:
 Surely a better solution would be to use a lossless compression?

 Yeah, I would hate to loose the ability to demangle a symbol.

Well we'd need a scheme that compresses to text, e.g. binary compression 
followed by base64?

Andrei

"deadalnix" <deadalnix gmail.com> writes:

On Monday, 27 May 2013 at 20:14:35 UTC, Andrei Alexandrescu wrote:
 At some point Walter and I were talking about generating an MD 
 hash for very long names. That has some disadvantages (i.e. no 
 easy reverse lookup) but it may work.

Reverse lookup never worked for this kind of symbols in the first 
place.

Jacob Carlborg <doob me.com> writes:

On 2013-05-27 18:18, David Nadlinger wrote:
 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:

 ———
 _D3std5range4308__T3ZipTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTkZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std9algorithm987__T6joinerTS3std9algorithm182__T16cartesianProductTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ16cartesianProduct744__T9MapResultS2353std9algorithm182__T16cartesianProductTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ16cartesianProduct16__funcliteral177TS3std5range472__T3ZipTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTkZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range91__T6RepeatTS3std5range57__T8Sequenc

eVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ6RepeatTS3std5range91__T6RepeatTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ6RepeatZ3ZipZ9MapResultZ6joinerFS3std9algorithm182__T16cartesianProductTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ16cartesianProduct744__T9MapResultS2353std9algorithm182__T16cartesianProductTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ16cartesianProduct16__funcliteral177TS3std5range472__T3ZipTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTkZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range91__T6RepeatTS3std5range57__T8SequenceVAyaa1_6eTS3st
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S3std9algorithm987__T6joinerTS3std9algorithm182__T16cartesianProductTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ16cartesianProduct744__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__T5TupleTiZ5TupleZ8SequenceZ6RepeatZ3ZipZ9MapR
esultZ6joinerFS3std9algorithm182__T16cartesianProductTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceTS3std5range57__T8SequenceVAyaa1_6eTS3std8typecons12__T5TupleTiZ5TupleZ8SequenceZ16cartesianProduct744__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__T5TupleTiZ5TupleZ8SequenceZ6RepeatZ3ZipZ9MapResultZ6ResultZ6
RepeatZ3Zip
 ———

 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"

That's just insane.

-- 
/Jacob Carlborg

Martin Nowak <code dawg.eu> writes:

On 05/27/2013 06:18 PM, David Nadlinger wrote:
 non-negligible code bloat

I wouldn't really call this code bloat, as it only affects your object 
files, the linker and the runtime linker.

"David Nadlinger" <see klickverbot.at> writes:

On Tuesday, 28 May 2013 at 13:06:01 UTC, Martin Nowak wrote:
 On 05/27/2013 06:18 PM, David Nadlinger wrote:
 non-negligible code bloat

 I wouldn't really call this code bloat, as it only affects your 
 object files, the linker and the runtime linker.

And unstripped executables.

David

"Max Samukha" <maxsamukha gmail.com> writes:

On Monday, 27 May 2013 at 15:22:21 UTC, Peter Alexander wrote:
 On Monday, 27 May 2013 at 04:12:23 UTC, deadalnix wrote:
 On Sunday, 26 May 2013 at 23:38:33 UTC, Timothee Cour wrote:
 Is there any plan to support demangling of those: 
 __ModuleInfoZ __initZ
 __arrayZ ?

 I have a lot of stuff that do not demangle properly with any 
 tools. I give you one, just for fun :D

 D1d6parser9statement308__T14parseStatementTS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ14parseStatementFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement1004__T28parseDeclarationOrExpressionS6781d6parser9statement308__T14parseStatementTS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ14parseStatementFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement13__dgliteral23TS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ28parseDeclarationOrExpressionMFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement2029__T14parseAmbiguousS17161d6parser9statement308__T14parseStatementTS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ14parseStatementFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement1004__T28parseDeclarationOrExpressionS6781d6parser9statement308__T14parseStatementTS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ14parseStatementFKS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZC1d3ast9statement9Statement13__dgliteral23TS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3lexMFAyaZ5LexerZ28parseDeclarationOrExpressionM12__dgliteral9TS1d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZ159__T3lexS1431d8semantic8semantic12SemanticPass35__T5parseTC1d8location10FileSourceZ5parseMFC1d8location10FileSourceAAyaZC1d3ast7dmodule6Module11__lambda125TAyaZ3

 Am I the only person that worries greatly about the length of 
 symbols in D?

No. That's a significant problem.