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lib/Devel/Trepan/CmdProcessor/Command/Set_Subcmd/Variable.pm  view on Meta::CPAN

# -*- coding: utf-8 -*-
# Copyright (C) 2011-2012, 2014-215 Rocky Bernstein <rocky@cpan.org>
use warnings; no warnings 'redefine';
use rlib '../../../../..';

package Devel::Trepan::CmdProcessor::Command::Set::Variable;

use Devel::Trepan::CmdProcessor::Command::Subcmd::Core;
use PadWalker qw(peek_our peek_my);

use strict;
use vars qw(@ISA @SUBCMD_VARS);
@ISA = qw(Devel::Trepan::CmdProcessor::Command::Subcmd);
# Values inherited from parent
use vars @Devel::Trepan::CmdProcessor::Command::Subcmd::SUBCMD_VARS;

## FIXME: do automatically.
our $CMD = "set variable";

=pod

=head2 Synopsis:

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

B<set variable> I<variable-name> = I<value>

Set a I<my> or I<our> variable; I<value> must be a constant.

=head2 Examples:

  set variable $foo = 20
  set variable @ARY = (1,2,3)

=head2 See also:

L<C<eval>|Devel::Trepan::CmdProcessor::Command::Eval>

=cut
HELP

our $SHORT_HELP   = "Set a 'my' or 'our' variable";

our $MIN_ABBREV = length('var');
our $MIN_ARGS   = 2;
our $MAX_ARGS   = undef;
our $NEED_STACK = 1;

sub set_var($$$)
{
    my ($var_name, $ref, $value) = @_;
    my $type = substr($var_name, 1, 1);
    if ('$' eq $type) {
        ${$ref->{$var_name}}  = $value;
    } elsif ('@' eq $type) {
        @{$ref->{$var_name}}  = @{$value};
    } elsif ('%' eq $type) {
        %{$ref->{$var_name}}  = %{$value};
    } else {
        ${$ref->{$var_name}}  = $value;
    }
}

sub run($$)
{
    my ($self, $args) = @_;
    my $proc = $self->{proc};