From @teodozjan

Hi,

I found some hash issues on moar and parrot

perl6-p --version
This is perl6 version 2014.04-181-gf374d87 built on parrot 6.1.0
revision RELEASE_6_1_0
perl6 --version
This is perl6 version 2014.04-181-gf374d87 built on MoarVM version
2014.04-49-gaa7bbef

sub y returns Array of Hash{
  my %a1 = :x("y"), :y("z"), :w("c");
  my %a2 =​:x("y"), :y("t"), :w("c");
  my %a3 = :x("y"), :y("z"), :w("h");

  my Hash $b1 = %a1;
  my Hash $b2 = %a2;
  my Hash $b3 = %a3;
  say $b1.WHAT;
  my Hash @​array = $b1,$b2,$b3;
}
y;
perl6 ~/dev/sandbox/HashKing.pl
(Hash)
Type check failed for return value; expected 'Array[Hash]' but got 'Array[Hash]'
  in any return_error at src/vm/moar/Perl6/Ops.nqp​:598
  in sub y at /home/kamil/dev/sandbox/HashKing.pl​:27
  in block at /home/kamil/dev/sandbox/HashKing.pl​:30

perl6-p ~/dev/sandbox/HashKing.pl
(Hash)
Type check failed for return value; expected 'Array[Hash]' but got 'Array[Hash]'
  in sub y at /home/kamil/dev/sandbox/HashKing.pl​:27
  in block at /home/kamil/dev/sandbox/HashKing.pl​:30

sub x returns Array of Hash{
  my %a1 = :x("y"), :y("z"), :w("c");
  my %a2 =​:x("y"), :y("t"), :w("c");
  my %a3 = :x("y"), :y("z"), :w("h");
  say %a1.WHAT;
  my Hash @​array = %a1,%a2,%a3;
}
x;

$ perl6 ~/dev/sandbox/HashKing.pl
(Hash)
Type check failed in assignment to '@​array'; expected 'Hash' but got 'Pair'
  in method REIFY at src/gen/m-CORE.setting​:8775
  in method reify at src/gen/m-CORE.setting​:7611
  in method gimme at src/gen/m-CORE.setting​:8049
  in method sink at src/gen/m-CORE.setting​:8473
  in method BUILDALL at src/gen/m-CORE.setting​:939
  in method bless at src/gen/m-CORE.setting​:858
  in method new at src/gen/m-CORE.setting​:843
  in any return_error at src/vm/moar/Perl6/Ops.nqp​:598
  in sub x at /home/kamil/dev/sandbox/HashKing.pl​:8
  in block at /home/kamil/dev/sandbox/HashKing.pl​:15

$ perl6-p ~/dev/sandbox/HashKing.pl
(Hash)
Type check failed for return value; expected 'Array[Hash]' but got 'Array[Hash]'
  in sub y at /home/kamil/dev/sandbox/HashKing.pl​:27
  in block at /home/kamil/dev/sandbox/HashKing.pl​:30

--
Pozdrawiam

Kamil Ku�aga

From @teodozjan

Sorry for wrong output. For x method on parrot should be​:
$ perl6-p ~/dev/sandbox/HashKing.pl
(Hash)
Type check failed for return value; expected 'Array[Hash]' but got 'Array[Hash]'
  in sub x at /home/kamil/dev/sandbox/HashKing.pl​:8
  in block at /home/kamil/dev/sandbox/HashKing.pl​:15

Anyway only linenumbers and method name change.

On Tue, May 6, 2014 at 11​:27 AM, perl6 via RT
<perl6-bugs-followup@​perl.org> wrote​:

Greetings,

This message has been automatically generated in response to the
creation of a trouble ticket regarding​:
"[BUG]Array of Hash conversion and type check error and unexpected conversion to pair",
a summary of which appears below.

There is no need to reply to this message right now. Your ticket has been
assigned an ID of [perl #​121804].

Please include the string​:

     \[perl #​121804\]

in the subject line of all future correspondence about this issue. To do so,
you may reply to this message.

                    Thank you,
                    perl6\-bugs\-followup@​perl\.org

-------------------------------------------------------------------------
Hi,

I found some hash issues on moar and parrot

perl6-p --version
This is perl6 version 2014.04-181-gf374d87 built on parrot 6.1.0
revision RELEASE_6_1_0
perl6 --version
This is perl6 version 2014.04-181-gf374d87 built on MoarVM version
2014.04-49-gaa7bbef

sub y returns Array of Hash{
my %a1 = :x("y"), :y("z"), :w("c");
my %a2 =​:x("y"), :y("t"), :w("c");
my %a3 = :x("y"), :y("z"), :w("h");

my Hash $b1 = %a1;
my Hash $b2 = %a2;
my Hash $b3 = %a3;
say $b1\.WHAT;
my Hash @​array = $b1,$b2,$b3;

}
y;
perl6 ~/dev/sandbox/HashKing.pl
(Hash)
Type check failed for return value; expected 'Array[Hash]' but got 'Array[Hash]'
in any return_error at src/vm/moar/Perl6/Ops.nqp​:598
in sub y at /home/kamil/dev/sandbox/HashKing.pl​:27
in block at /home/kamil/dev/sandbox/HashKing.pl​:30

perl6-p ~/dev/sandbox/HashKing.pl
(Hash)
Type check failed for return value; expected 'Array[Hash]' but got 'Array[Hash]'
in sub y at /home/kamil/dev/sandbox/HashKing.pl​:27
in block at /home/kamil/dev/sandbox/HashKing.pl​:30

sub x returns Array of Hash{
my %a1 = :x("y"), :y("z"), :w("c");
my %a2 =​:x("y"), :y("t"), :w("c");
my %a3 = :x("y"), :y("z"), :w("h");
say %a1.WHAT;
my Hash @​array = %a1,%a2,%a3;
}
x;

$ perl6 ~/dev/sandbox/HashKing.pl
(Hash)
Type check failed in assignment to '@​array'; expected 'Hash' but got 'Pair'
in method REIFY at src/gen/m-CORE.setting​:8775
in method reify at src/gen/m-CORE.setting​:7611
in method gimme at src/gen/m-CORE.setting​:8049
in method sink at src/gen/m-CORE.setting​:8473
in method BUILDALL at src/gen/m-CORE.setting​:939
in method bless at src/gen/m-CORE.setting​:858
in method new at src/gen/m-CORE.setting​:843
in any return_error at src/vm/moar/Perl6/Ops.nqp​:598
in sub x at /home/kamil/dev/sandbox/HashKing.pl​:8
in block at /home/kamil/dev/sandbox/HashKing.pl​:15

$ perl6-p ~/dev/sandbox/HashKing.pl
(Hash)
Type check failed for return value; expected 'Array[Hash]' but got 'Array[Hash]'
in sub y at /home/kamil/dev/sandbox/HashKing.pl​:27
in block at /home/kamil/dev/sandbox/HashKing.pl​:30

--
Pozdrawiam

Kamil Ku�aga

--
Pozdrawiam

Kamil Ku�aga

From @Mouq

On Tue May 06 02​:27​:58 2014, teodozjan wrote​:

Hi,

I found some hash issues on moar and parrot

sub y returns Array of Hash{
my %a1 = :x("y"), :y("z"), :w("c");
my %a2 =​:x("y"), :y("t"), :w("c");
my %a3 = :x("y"), :y("z"), :w("h");

my Hash $b1 = %a1;
my Hash $b2 = %a2;
my Hash $b3 = %a3;
say $b1.WHAT;
my Hash @​array = $b1,$b2,$b3;
}
y;
perl6 ~/dev/sandbox/HashKing.pl
(Hash)
Type check failed for return value; expected 'Array[Hash]' but got
'Array[Hash]'
in any return_error at src/vm/moar/Perl6/Ops.nqp​:598
in sub y at /home/kamil/dev/sandbox/HashKing.pl​:27
in block at /home/kamil/dev/sandbox/HashKing.pl​:30

perl6-p ~/dev/sandbox/HashKing.pl
(Hash)
Type check failed for return value; expected 'Array[Hash]' but got
'Array[Hash]'
in sub y at /home/kamil/dev/sandbox/HashKing.pl​:27
in block at /home/kamil/dev/sandbox/HashKing.pl​:30

This has been fixed in the most recent Rakudo; additionally, a test was added in Roast commit df6e66b70c7.

sub x returns Array of Hash{
my %a1 = :x("y"), :y("z"), :w("c");
my %a2 =​:x("y"), :y("t"), :w("c");
my %a3 = :x("y"), :y("z"), :w("h");
say %a1.WHAT;
my Hash @​array = %a1,%a2,%a3;
}
x;

$ perl6 ~/dev/sandbox/HashKing.pl
(Hash)
Type check failed in assignment to '@​array'; expected 'Hash' but got
'Pair'
in method REIFY at src/gen/m-CORE.setting​:8775
in method reify at src/gen/m-CORE.setting​:7611
in method gimme at src/gen/m-CORE.setting​:8049
in method sink at src/gen/m-CORE.setting​:8473
in method BUILDALL at src/gen/m-CORE.setting​:939
in method bless at src/gen/m-CORE.setting​:858
in method new at src/gen/m-CORE.setting​:843
in any return_error at src/vm/moar/Perl6/Ops.nqp​:598
in sub x at /home/kamil/dev/sandbox/HashKing.pl​:8
in block at /home/kamil/dev/sandbox/HashKing.pl​:15

The fact that this dies has to do with list assignment flattening its arguments (and Hashes flatten into their Pairs), so it's actually doing the right thing here :) I don't think these semantics are up for debate� on the other hand, if you think that the error is misleading or LTA, please open another report.

Otherwise, I'm marking this bug as resolved :)

The RT System itself - Status changed from 'new' to 'open'

@Mouq - Status changed from 'open' to 'resolved'