From @jeffhorwitz

if split() returns fewer elements than the list assignment expects (a
valid condition), it crashes when trying to assign from an element that
doesn't exist.

# WORKS
{
  my $handler = 'Foo​::Bar.baz';
  my ($class, $method) = split('.', $handler);
  say "class=$class";
  say "method=$method";
}

# FAILS
{
  my $handler = 'Foo​::Bar';
  my ($class, $method) = split('.', $handler);
  say "class=$class";
  say "method=$method";
}

# OUTPUT
class=Foo​::Bar
method=baz
ResizablePMCArray​: Can't shift from an empty array!
current instr.​: 'infix​:=' pc 12194 (src/builtins/assign.pir​:149)
called from Sub '_block40' pc 361 (EVAL_16​:127)
called from Sub '_block11' pc 32 (EVAL_16​:18)
called from Sub 'parrot;PCT;HLLCompiler;eval' pc 892
(src/PCT/HLLCompiler.pir​:508)
called from Sub 'parrot;PCT;HLLCompiler;evalfiles' pc 1224
(src/PCT/HLLCompiler.pir​:673)
called from Sub 'parrot;PCT;HLLCompiler;command_line' pc 1400
(src/PCT/HLLCompiler.pir​:761)
called from Sub 'parrot;Perl6;Compiler;main' pc 17717 (perl6.pir​:166)

From @pmichaud

Now resolved in r33948, thanks!

Pm

@pmichaud - Status changed from 'new' to 'resolved'