digitalmars.D.bugs - [Issue 945] New: template forward reference with named nested struct only
- d-bugmail puremagic.com (43/43) Feb 10 2007 http://d.puremagic.com/issues/show_bug.cgi?id=945
- d-bugmail puremagic.com (13/13) Feb 10 2007 http://d.puremagic.com/issues/show_bug.cgi?id=945
- =?UTF-8?B?TWFudWVsIEvDtm5pZw==?= (21/44) Feb 10 2007 I just used "x" because I didn´t want to count the line numbers and the...
- =?ISO-8859-15?Q?Manuel_K=F6nig?= (17/40) Feb 10 2007 This is very embarrissing, but I just forgot the instantiation of the
- d-bugmail puremagic.com (8/10) Feb 10 2007 http://d.puremagic.com/issues/show_bug.cgi?id=945
- d-bugmail puremagic.com (7/7) Aug 20 2007 http://d.puremagic.com/issues/show_bug.cgi?id=945
- d-bugmail puremagic.com (23/23) Mar 27 2010 http://d.puremagic.com/issues/show_bug.cgi?id=945
- d-bugmail puremagic.com (10/10) May 10 2010 http://d.puremagic.com/issues/show_bug.cgi?id=945
- d-bugmail puremagic.com (12/12) May 18 2010 http://d.puremagic.com/issues/show_bug.cgi?id=945
http://d.puremagic.com/issues/show_bug.cgi?id=945
Summary: template forward reference with named nested struct only
Product: D
Version: 1.005
Platform: PC
OS/Version: Windows
Status: NEW
Severity: normal
Priority: P2
Component: DMD
AssignedTo: bugzilla digitalmars.com
ReportedBy: manuelk89 gmx.net
BugsThisDependsOn: 340,810
Given a struct S in A.d and a template T int B.d with a nested struct
and S as its member:
// file A.d:
import B;
struct S { }
// file B.d:
import A;
struct T()
{
struct Nested
{
S member;
}
}
=========================================
Compiling with dmd 1.005 on winXP:
bud A
Yields this:
B.d(x): struct B.T!().T.Nested has forward references
B.d(x): template instance B.T!() error instantiating
But it compiles if...
- you make 'Nested' an anonymous struct
- you declare 'Nested' somewhere outside of 'T', even after the
instantiation
- you make 'member' a pointer or S a class
- you change compile order, ie. 'bud B'
- you put the instantiation below the declaration of S in A.d
- you use dmd 0.177 (!)
It still does not compile if 'Nested' is made a static struct.
--
Feb 10 2007
http://d.puremagic.com/issues/show_bug.cgi?id=945
smjg iname.com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |smjg iname.com
Keywords| |rejects-valid
------- Comment #1 from smjg iname.com 2007-02-10 10:30 -------
Interesting. Neither
dmd A.d B.d
dmd B.d A.d
shows the problem (trying it under Win98SE). But what puzzles me most is that
in your attempt, the compiler prints "x" instead of a line number.
--
Feb 10 2007
=?UTF-8?B?TWFudWVsIEvDtm5pZw==?= <manuelk89 gmx.net>
d-bugmail puremagic.com schrieb:
http://d.puremagic.com/issues/show_bug.cgi?id=945
smjg iname.com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |smjg iname.com
Keywords| |rejects-valid
------- Comment #1 from smjg iname.com 2007-02-10 10:30 -------
Interesting. Neither
dmd A.d B.d
dmd B.d A.d
shows the problem (trying it under Win98SE). But what puzzles me most is that
in your attempt, the compiler prints "x" instead of a line number.
I just used "x" because I didn´t want to count the line numbers and the
lines are shifted in my bug report.
But the behaviour of "dmd A.d B.d" and vice versa is very interesting,
cause manually invoking the compiler with theses lines runs for me too
(thanks for the hint!). But both Code::Blocks and 'bud' failed. Under
Code::Blocks with full command line logging enabled it says:
dmd.exe -I\include -IC:\dmd\src\phobos -c D:\Dev\Projects\DError\B.d
-ofobj\Release\B.obj
dmd.exe -I\include -IC:\dmd\src\phobos -c D:\Dev\Projects\DError\A.d
-ofobj\Release\A.obj
dmd.exe bin\Release\DError.exe obj\Release\B.obj obj\Release\A.obj
phobos.lib
B.d(6): struct B.T!().T.Nested has forward references
B.d(11): template instance B.T!() error instantiating
Process terminated with status 1 (0 minutes, 0 seconds)
2 errors, 0 warnings
I tried to reproduce the error Code::Blocks ran into, but running the
same lines from a batch file works!
The same error appears by doing 'bud A' (but not 'bud B'!).
Can anybody explain this strange behaviour?
Feb 10 2007
d-bugmail puremagic.com schrieb:
http://d.puremagic.com/issues/show_bug.cgi?id=945
smjg iname.com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |smjg iname.com
Keywords| |rejects-valid
------- Comment #1 from smjg iname.com 2007-02-10 10:30 -------
Interesting. Neither
dmd A.d B.d
dmd B.d A.d
shows the problem (trying it under Win98SE). But what puzzles me most is that
in your attempt, the compiler prints "x" instead of a line number.
This is very embarrissing, but I just forgot the instantiation of the
template! It should be:
// file A.d:
import B;
struct S { }
// file B.d:
import A;
struct T()
{
struct Nested
{
S member;
}
}
alias T!() instance; // <- add this line!!
This should finally reproduce the error!
Feb 10 2007
http://d.puremagic.com/issues/show_bug.cgi?id=945 ------- Comment #4 from smjg iname.com 2007-02-10 12:09 ------- Please don't blindly quote the entire message when replying. It's bad enough on any old newsgroup, but in this instance it clutters up Bugzilla. (In reply to comment #2)I just used "x" because I didn´t want to count the line numbers and the lines are shifted in my bug report.Then leave the compiler output alone. It sometimes helps to add comments to posted code to indicate line numbers. --
Feb 10 2007
http://d.puremagic.com/issues/show_bug.cgi?id=945 ------- Comment #5 from korslund gmail.com 2007-08-20 07:56 ------- I have rediscovered this bug while working on a large and very template-heavy project of mine. The project is currently held up by this (and possibly other) template forwarding bugs, and so it would be really appreciated if this bug was fixed in the not too distant future. Thanks ;-) --
Aug 20 2007
http://d.puremagic.com/issues/show_bug.cgi?id=945
Rainer Schuetze <r.sagitario gmx.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
CC| |r.sagitario gmx.de
--- Comment #6 from Rainer Schuetze <r.sagitario gmx.de> 2010-03-27 06:22:43
PDT ---
Here's a patch that invokes the missing semantics. It also fixes issue #1055
Index: struct.c
===================================================================
--- struct.c (revision 421)
+++ struct.c (working copy)
-178,6 +178,8
error("cannot have field %s with same struct type", v->toChars());
}
#endif
+ if (ts->sym->sizeok != 1 && ts->sym->scope)
+ ts->sym->semantic(NULL);
if (ts->sym->sizeok != 1)
{
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Mar 27 2010
http://d.puremagic.com/issues/show_bug.cgi?id=945
Walter Bright <bugzilla digitalmars.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |bugzilla digitalmars.com
--- Comment #7 from Walter Bright <bugzilla digitalmars.com> 2010-05-10
11:45:01 PDT ---
changeset 478
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May 10 2010
http://d.puremagic.com/issues/show_bug.cgi?id=945
Don <clugdbug yahoo.com.au> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |clugdbug yahoo.com.au
Resolution| |FIXED
--- Comment #8 from Don <clugdbug yahoo.com.au> 2010-05-18 12:15:17 PDT ---
Fixed DMD1.061 and DMD2.046.
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May 18 2010