Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tree: 6f49cae0f4
Fetching contributors…

Cannot retrieve contributors at this time

file 75 lines (63 sloc) 2.169 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
# -*- coding: utf-8 -*-
# Copyright (C) 2011 Rocky Bernstein <rocky@cpan.org>
use warnings; no warnings 'redefine';
use lib '../../../..';

package Devel::Trepan::CmdProcessor::Command::Condition;
use English qw( -no_match_vars );

use if !defined @ISA, Devel::Trepan::Condition ;
use if !defined @ISA, Devel::Trepan::CmdProcessor::Command ;

unless (defined @ISA) {
    eval "use constant ALIASES => qw(cond);";
    eval "use constant CATEGORY => 'breakpoints';";
    eval "use constant NEED_STACK => 0;";
    eval "use constant SHORT_HELP =>
'Specify breakpoint number N to break only if COND is true';"
}

use strict; use vars qw(@ISA); @ISA = @CMD_ISA;
use vars @CMD_VARS; # Value inherited from parent
our $MIN_ARGS = 2; # Need at least this many
our $MAX_ARGS = undef; # Need at most this many - undef -> unlimited.

our $NAME = set_name();
our $HELP = <<"HELP";
${NAME} BP_NUMBER CONDITION

BP_NUMBER is a breakpoint number. CONDITION is an expression which
must evaluate to True before the breakpoint is honored. If CONDITION
is absent, any existing condition is removed; i.e., the breakpoint is
made unconditional.

Examples:
${NAME} 5 x > 10 # Breakpoint 5 now has condition x > 10
${NAME} 5 # Remove above condition

See also "break", "enable" and "disable".
HELP

# This method runs the command
sub run($$) {
    my ($self, $args) = @_;
    my $proc = $self->{proc};
    my $bpnum = $proc->get_an_int($args->[1]);
    my $bp = $proc->{brkpts}->find($bpnum);
    unless ($bp) {
$proc->errmsg("No breakpoint number $bpnum");
return;
    }
    
    my $condition;
    if (scalar @{$args} > 2) {
my @args = @{$args};
shift @args; shift @args;
$condition = join(' ', @args);
unless (is_valid_condition($condition)) {
$proc->errmsg("Invalid condition: $condition");
return
}
    } else {
$condition = '1';
$proc->msg('Breakpoint $bp->id is now unconditional.');
    }
    $bp->condition($condition);
}

unless (caller) {
    require Devel::Trepan::CmdProcessor::Mock;
    my $proc = Devel::Trepan::CmdProcessor::Mock::setup();
    # my $cmd = __PACKAGE__->new($proc);
    # $cmd->run([$NAME]);
}

1;
Something went wrong with that request. Please try again.