From audreyt.org@me.com

# Fails​: get_string() not implemented in class 'P6Invocation'
class C { method M {} }; say C.new.can('M')

# ok
class C { method M {} }; say 'ok' if C.new.can('M')

---- log ---

23​:32 <@​jnthn> P6Invocation ain't meant to leak out
23​:34 <@​au|irc> so boolean context works, just not string
23​:35 <@​jnthn> *nod*
23​:35 <@​jnthn> Ah, I remember now...I didn't fix the "list of methods" return part of it 'cus lists were still in flux at that point.
23​:35 <@​jnthn> And didn't get to re-visit it since.
23​:36 <@​jnthn> ETOOMUCHTODO
23​:36 <@​au|irc> it's ok. *writes to rakudobug@​perl.org*

@coke - Status changed from 'new' to 'open'

From @ashgti

$ perl6

class A { method a { 1 } }; A.can('a');
===SORRY!===
get_string() not implemented in class 'P6Invocation'

It happens whenever you try to Stringify the result of .can, .can is
probably returning something primitive in parrot.

From @coke

On Wed Sep 22 19​:09​:19 2010, ash_gti wrote​:

$ perl6

class A { method a { 1 } }; A.can('a');
===SORRY!===
get_string() not implemented in class 'P6Invocation'

It happens whenever you try to Stringify the result of .can, .can is
probably returning something primitive in parrot.

Fixed​:

16​:15 < [Coke]> rakudo​: class C { method M {} }; say C.new.can('M');
16​:15 <+p6eval> rakudo 88c5a5​: OUTPUT«M␤»
16​:16 < [Coke]> rakudo​: class A { method a { 1 } }; A.can('a').say;
16​:16 <+p6eval> rakudo 88c5a5​: OUTPUT«a␤»

Closable with tests.

--
Will "Coke" Coleda

From @moritz

now tested in S12-introspection/can.t

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