digitalmars.D.bugs - [Issue 1787] New: Compiler segfaults on circular references.
- d-bugmail puremagic.com (27/27) Jan 15 2008 http://d.puremagic.com/issues/show_bug.cgi?id=1787
- d-bugmail puremagic.com (10/10) Sep 09 2008 http://d.puremagic.com/issues/show_bug.cgi?id=1787
- d-bugmail puremagic.com (28/32) Apr 18 2009 http://d.puremagic.com/issues/show_bug.cgi?id=1787
- d-bugmail puremagic.com (10/10) May 15 2009 http://d.puremagic.com/issues/show_bug.cgi?id=1787
- d-bugmail puremagic.com (26/26) Aug 13 2009 http://d.puremagic.com/issues/show_bug.cgi?id=1787
- d-bugmail puremagic.com (11/11) Oct 13 2009 http://d.puremagic.com/issues/show_bug.cgi?id=1787
http://d.puremagic.com/issues/show_bug.cgi?id=1787
Summary: Compiler segfaults on circular references.
Product: D
Version: 1.024
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P3
Component: DMD
AssignedTo: bugzilla digitalmars.com
ReportedBy: aziz.kerim gmail.com
// Code snippets which kill dmd.
struct A
{ const a = B.b; }
struct B
{ const b = A.a; }
struct C
{
const x = C.x;
}
// Some examples which don't segfault. The compiler reports errors as it
should.
const x = x;
const a = b;
const b = a;
--
Jan 15 2008
d-bugmail puremagic.com
http://d.puremagic.com/issues/show_bug.cgi?id=1787
smjg iname.com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |smjg iname.com
Keywords| |ice-on-invalid-code
Related to issue 713?
WFM 1.035 Windows. Has it gone away, or is it platform parity?
--
Sep 09 2008
http://d.puremagic.com/issues/show_bug.cgi?id=1787
clugdbug yahoo.com.au changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
OS/Version|Linux |All
Related to issue 713?
WFM 1.035 Windows. Has it gone away, or is it platform parity?
The first example now works, but the second one segfaults:
struct C {
const x = C.x;
}
Segfaults on DMD2.028 and 1.042 Windows.
I've patched it so that it displays:
bug.d(2): Error: variable bug.C.x cannot infer type
Patch against DMD2.028 in void VarDeclaration::semantic(Scope *sc).
Index: declaration.c
===================================================================
--- declaration.c (revision 22)
+++ declaration.c (working copy)
-688,6 +688,7
if (!type)
{ inuse++;
type = init->inferType(sc);
+ if (!type) { error("cannot infer type"); return; }
inuse--;
inferred = 1;
--
Apr 18 2009
http://d.puremagic.com/issues/show_bug.cgi?id=1787
Don <clugdbug yahoo.com.au> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |clugdbug yahoo.com.au
Was fixed in DMD2.030, still segfaults in DMD1.045.
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May 15 2009
http://d.puremagic.com/issues/show_bug.cgi?id=1787
Don <clugdbug yahoo.com.au> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
This patch isn't great, but since it's already got a proper fix in D2, it might
be OK.
Index: mtype.c
===================================================================
--- mtype.c (revision 192)
+++ mtype.c (working copy)
-4313,6 +4313,11
s = s->toAlias();
v = s->isVarDeclaration();
+ if (v && v->isConst() && !v->type) {
+ // BUG 1787. TODO: This isn't the best place for this error message,
but it prevents a segfault
+ error(e->loc, "Cannot infer type of %s", v->toChars());
+ return e;
+ }
if (v && v->isConst() && v->type->toBasetype()->ty != Tsarray)
{ ExpInitializer *ei = v->getExpInitializer();
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Aug 13 2009
http://d.puremagic.com/issues/show_bug.cgi?id=1787
Walter Bright <bugzilla digitalmars.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
13:50:16 PDT ---
Fixed dmd 1.049
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Oct 13 2009