While updating Flectioned to DMD-1.001 I've encountered a _potential_ issue with the new GC.

# class LazyTypeInfo : TypeInfo{
#    char[] unique;
#
#    this(char[] name){
#       this.unique = name.dup;
#       printf("LAZY_1: this:%p message:%p %.*s\n", this, unique.ptr,
#       unique);
#    }
#
#    char[] toString(){
#       printf("LAZY_2: this:%p message:%p %.*s\n", this, unique.ptr, unique);
#       return format("LazyTypeInfo(%s)", unique);
#    }
# }

No LazyTypeInfo can be collected before all LazyTypeInfos have been instantiated and all instantiations of LazyTypeInfo are plain "new LazyTypeInfo("some string)".

LAZY_1: this:0xf7d57170 message:0xf7d57140 aaA.AA
LAZY_1: this:0xf7d57140 message:0xf7d26640 std.asserterror.AssertError
LAZY_2: this:0xf7d57140 message:0xf7d26640

As you can see 0xf7d57140 first points to the content of an array and later on to that of a LazyTypeInfo instance. In addition the above "name.dup" was a "name" in previous versions and works with DMD-1.00 and GDC-0.21.

Complete source: http://svn.dsource.org/projects/flectioned/downloads/flectioned.zip

failure detection:
Error: 4invalid UTF-8 sequence

I'll try to reduce the code a bit before filling a bug report - if it is indeed a D issue.

Thomas

Thomas Kuehne wrote:
> I'll try to reduce the code a bit before filling a bug report - if it is
> indeed a D issue.

You're not alone. I'm getting strange results using std.string.split (which wasn't changed) and Oskar's got segfaults :(

L.

Thomas Kuehne schrieb am 2007-01-24:
>
> While updating Flectioned to DMD-1.001 I've encountered a _potential_ issue with the new GC.
[...]

It is indeed a D issue Oskar Linde already tracked down.

news:ep6asn$aer$1@digitaldaemon.com:
> It seems the ClassInfo.flags are incorrectly set to 2 when only private data members contain pointers.

Thomas

On Wed, 24 Jan 2007 11:49:42 +0000 (UTC), Thomas Kuehne wrote:


> Error: 4invalid UTF-8 sequence

I'm also getting this when compiling 'Build' with 1.001. A recompile with DMD 1.00 works fine though.

-- 
Derek Parnell