NAME

grok, wisp - introspection helpers.

SYNOPSIS

From the command line:

raku -MGrok -e 'grok( my $a = 42, :deeply :core)'

raku -MGrok -e 'say wisp( Endian )'

Within Raku code:

use Grok :wisp;

# print the Endian enumerations...
say wisp( Endian );
# Endian - Enum is: Int Cool Any Mu enums: NativeEndian LittleEndian BigEndian

# print Allomorth attributes, methods and recurse into parents, roles including ::CORE types
grok( Allomorph, :deeply, :core )
# lots of output ...

DESCRIPTION

Grok contains introspection helpers that display information about Raku things.

For example: You want to know how many times a sub is wrapped - grok a golf to see what methods are available.

>raku -MGrok -e 'sub s { say "s" }; &s.wrap({ say "w"; next }); grok( &s );'
#s - () Sub+{Routine::Wrapped}
#  Sub - Class is: Routine Block Code Any Mu does: Callable
#  Routine - Class is: Block Code Any Mu does: Callable
#  Block - Class is: Code Any Mu does: Callable
#  Code - Class is: Any Mu does: Callable
#  Any - Class is: Mu
#  Mu - Class
#  Routine::Wrapped - Role
#  Callable - Role
#  $!dispatcher - Mu private read-only in Routine
#  $!do - Code private read-only in Code
#  $!flags - int private read-only in Routine
#  $!inline_info - Mu private read-only in Routine
#  $!package - Mu private read-only in Routine
#  $!phasers - Mu private read-only in Block
#  $!signature - Signature private read-only in Code
#  $!why - Mu private read-only in Block
#  $!wrapper-type - Routine private read-only in Sub+{Routine::Wrapped}
#  $!wrappers - Mu private read-only in Sub+{Routine::Wrapped}
#  @!compstuff - List private read-only in Code
#  @!dispatch_order - List private read-only in Routine
#  @!dispatchees - List private read-only in Routine
#  ADD-WRAPPER - (Sub+{Routine::Wrapped}: &wrapper, *%_ --> Nil) Method in Routine::Wrapped
#  REMOVE-WRAPPER - (Sub+{Routine::Wrapped}: &wrapper, *%_ --> Bool) Method in Routine::Wrapped
#  WRAPPER-TYPE - (Sub+{Routine::Wrapped}: *%_) Method in Routine::Wrapped
#  WRAPPERS - (Sub+{Routine::Wrapped}: *%_) Method in Routine::Wrapped
#  is-wrapped - (Sub+{Routine::Wrapped}: *%_ --> Bool) Method in Routine::Wrapped

... and you conclude it's worth checking out .WRAPPERS.elems.

sub grok

sub grok(
    Mu $thing is raw,
    :$deeply = Bool::False,
    :$core = Bool::False,
    :$local = Bool::False,
    :$detail = Bool::False,
    :$where = Nil
) returns Mu

Introspect a thing. grok( Allomorph, :deeply, :core );

• :deeply - recurse into parents, roles etc.
• :core - include core classes.
• :local - skip composed / imported methods.
• :detail - include extra detail.
• :where - True - show in-package, False - hide in-package, Default - show imported package names.

sub wisp

sub wisp(
    Mu $thing is raw
) returns Wisp

An introspection helper - e.g. say wisp( Endian ) Provides:

• .gist
• .detail

AUTHOR

Jeff Armstrong jeff@jaguart.tech

Source can be found at: https://github.com/jaguart/Grok

This is my first Raku module - comments and Pull Requests are welcome.

COPYRIGHT AND LICENSE

Copyright 2022 Jeff Armstrong

This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.