Class: Byebug::ConditionCommand

Inherits:
Command
  • Object
show all
Defined in:
lib/byebug/commands/condition.rb

Constant Summary

Constants inherited from Command

Byebug::Command::DEF_OPTIONS

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Command

command_exists?, commands, find, format_subcmd, format_subcmds, help, inherited, #initialize, load_commands, #match, method_missing, options, register_setting_get, register_setting_set, register_setting_var, settings, settings_map, terminal_width

Constructor Details

This class inherits a constructor from Byebug::Command

Class Method Details

.description ⇒ Object 



29
30
31
32
33
34
35
36
 
# File 'lib/byebug/commands/condition.rb', line 29

def description
  %{cond[ition] nnn[ expr]

    Specify breakpoint number nnn to break only if expr is true. nnn is an
    integer and expr is an expression to be evaluated whenever breakpoint
    nnn is reached. If no expression is specified, the condition is
    removed.}
end

.names ⇒ Object 



25
26
27
 
# File 'lib/byebug/commands/condition.rb', line 25

def names
  %w(condition)
end

Instance Method Details

#execute ⇒ Object 



9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
# File 'lib/byebug/commands/condition.rb', line 9

def execute
  return print ConditionCommand.help(nil) unless @match[1]

  breakpoints = Byebug.breakpoints.sort_by{|b| b.id }
  largest = breakpoints.inject(0) do |tally, b|
    tally = b.id if b.id > tally
  end

  return print "No breakpoints have been set.\n" if 0 == largest
  return unless pos = get_int(@match[1], "Condition", 1, largest)

  breakpoint = breakpoints.select{ |b| b.id == pos }.first
  breakpoint.expr = @match[2] if breakpoint
end

#regexp ⇒ Object 



5
6
7
 
# File 'lib/byebug/commands/condition.rb', line 5

def regexp
  /^\s* cond(?:ition)? (?:\s+(\d+)(?:\s+(.*))?)? \s*$/x
end