Re: getting help in the REPL

[Timo Paulssen]

timo@schmetterling ~> perl6 -e '#| this is sub foo documentation
  sub foo() { };
  say 
  say '
this is sub foo documentation
No such method 'WHEREFOR' for invocant of type 'Pod::Block::Declarator'.
Did you mean 'WHEREFORE'?
  in block  at -e line 4

timo@schmetterling ~ [1]> perl6 -e '#| this is sub foo documentation
  sub foo() { };
  say 
  say '
this is sub foo documentation
sub foo () { #`(Sub|49720168) ... }

WHEREFOR is the opposite of WHY, it gives you back what the object is
that a piece of declaration describes.

HTH
  - Timo

Re: getting help in the REPL

[Brian Duggan]

$ perl6
To exit type 'exit' or '^D'
> #|{ because } class Foo { }
(Foo)
> Foo.WHY
because
>

On Wednesday, June 14, Gabor Szabo wrote: 
> Thanks for all the responses so far.
> 
> On Wed, Jun 14, 2017 at 4:44 PM, Timo Paulssen  wrote:
> > WHY and WHEREFOR are "fully" supported, it's just that we've not put any
> > pod into the core setting and we don't have helper code that loads it
> > "lazily" when WHY is called the first time on a core class or sub …
> 
> $ perl6
> To exit type 'exit' or '^D'
> > my @x = 1, 2, 3;
> [1 2 3]
> > @x.WHY
> (Any)
> > @x.WHEREFOR
> No such method 'WHEREFOR' for invocant of type 'Array'
>   in block  at  line 1
> 
> $ perl6 -v
> This is Rakudo version 2017.04.3 built on MoarVM version 2017.04-53-g66c6dda
> implementing Perl 6.c.
> 
> 
> In additionally, can I list all the built-in variables, functions, and
> objects? While inside the REPL..
> 
> 
> regards
>   Gabor

Re: getting help in the REPL

[Gabor Szabo]

Thanks for all the responses so far.

On Wed, Jun 14, 2017 at 4:44 PM, Timo Paulssen  wrote:
> WHY and WHEREFOR are "fully" supported, it's just that we've not put any
> pod into the core setting and we don't have helper code that loads it
> "lazily" when WHY is called the first time on a core class or sub …

$ perl6
To exit type 'exit' or '^D'
> my @x = 1, 2, 3;
[1 2 3]
> @x.WHY
(Any)
> @x.WHEREFOR
No such method 'WHEREFOR' for invocant of type 'Array'
  in block  at  line 1

$ perl6 -v
This is Rakudo version 2017.04.3 built on MoarVM version 2017.04-53-g66c6dda
implementing Perl 6.c.


In additionally, can I list all the built-in variables, functions, and
objects? While inside the REPL..


regards
  Gabor

Re: getting help in the REPL

[Timo Paulssen]

WHY and WHEREFOR are "fully" supported, it's just that we've not put any
pod into the core setting and we don't have helper code that loads it
"lazily" when WHY is called the first time on a core class or sub …

Re: getting help in the REPL

[Patrick R. Michaud]

On Wed, Jun 14, 2017 at 04:00:05PM +0300, Gabor Szabo wrote:
> In the python interactive shell one can write dir(object)  and it
> lists the attributes and methods of the object. One can write
> help(object) and get the documentation of the object.
> Is there anything similar in Perl 6?

I think the original intent was for .WHY to work in this manner -- it's 
intended to provide the attached Pod value.

I don't know to what level Rakudo implements this yet.

There's an example given at https://docs.perl6.org/routine/WHY .

Pm

Re: getting help in the REPL

[Brian Duggan]

On Wednesday, June 14, Gabor Szabo wrote: 
> Hi,
> 
> In the python interactive shell one can write dir(object)  and it
> lists the attributes and methods of the object. One can write
> help(object) and get the documentation of the object.
> 
> Is there anything similar in Perl 6?

object.^methods, object.^attributes and object.WHY?

Brian

getting help in the REPL

[Gabor Szabo]

Hi,

In the python interactive shell one can write dir(object)  and it
lists the attributes and methods of the object. One can write
help(object) and get the documentation of the object.

Is there anything similar in Perl 6?

Gabor