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

"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/

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

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?

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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———

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

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).

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?

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.

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

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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>
> ———

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