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lib/Devel/Trepan/CmdProcessor/Command/Info_Subcmd/Variables_Subcmd/Lexicals.pm  view on Meta::CPAN

# -*- coding: utf-8 -*-
# Copyright (C) 2011-2012, 2014 Rocky Bernstein <rocky@cpan.org>
use warnings; no warnings 'redefine'; no warnings 'once';
use rlib '../../../../../..';

package Devel::Trepan::CmdProcessor::Command::Info::Variables::Lexicals;
our (@ISA, @SUBCMD_VARS);

use Devel::Trepan::CmdProcessor::Command::Subcmd::Subsubcmd;
use PadWalker qw(peek_my peek_our);
use Devel::Trepan::CmdProcessor::Command::Info_Subcmd::Variables_Subcmd::My;

our $CMD = "info variables lexicals";
my  @CMD = split(/ /, $CMD);
use constant MAX_ARGS => undef;
use constant NEED_STACK => 1;

our $MIN_ABBREV = length('l');
=pod

=head2 Synopsis:

=cut
our $HELP = <<'HELP';
=pod

B<info variables lexicals>

B<info variables lexicals -v>

B<info variables lexicals> I<var1> [I<var2>...]

Lists C<my> or C<lexical> variables at the current frame. Use the
frame changing commands like C<up>, C<down> or C<frame> set the
current frame.

In the first form, give a list of C<my> or C<our> variable names only.
In the second form, list variable names and values In the third form,
list variable names and values of I<var1>, etc.

=head2 See also:

L<C<info variables
my>|Devel::Trepan::CmdProcessor::Command::Info::Variables::My>,
L<C<info variables
our>|Devel::Trepan::CmdProcessor::Command::Info::Variables::Our>, and
frame-changing commands
=cut
HELP
our $SHORT_HELP   = "Information about 'my' or 'our' variables.";

@ISA = qw(Devel::Trepan::CmdProcessor::Command::Info::Variables::My);

sub run($$)
{
    my ($self, $args) = @_;
    # FIXME: combine with My.pm
    my $i = 0;
    while (my ($pkg, $file, $line, $fn) = caller($i++)) { ; };
    my $diff = $i - $DB::stack_depth;

    # FIXME: 4 is a magic fixup constant, also found in DB::finish.
    # Remove it.
    my $my_hash  = peek_my($diff + $self->{proc}->{frame_index} + 4);
    my $our_hash = peek_our($diff + $self->{proc}->{frame_index} + 4);

    my @ARGS = @{$args};
    @ARGS = splice(@ARGS, scalar(@CMD));
    if (scalar(@ARGS == 0)) {
        $self->process_args(\@ARGS, $my_hash, 'my');