Class: Debugger::CommandProcessor

Inherits:
Processor
  • Object
show all
Defined in:
lib/ruby-debug/processor.rb

Overview

:nodoc:

Defined Under Namespace

Classes: State

Constant Summary collapse

@@Show_breakpoints_postcmd =

FIXME: get from Command regexp method.

[
 /^\s*b(?:reak)?/,
 /^\s* cond(?:ition)? (?:\s+(\d+)\s*(.*))?$/ix,
 /^\s*del(?:ete)?(?:\s+(.*))?$/ix,
 /^\s* dis(?:able)? (?:\s+(.*))?$/ix,
 /^\s* en(?:able)? (?:\s+(.*))?$/ix,
 # "tbreak", "clear",
]
@@Show_annotations_run =

“tbreak”, “clear”,

[
  /^\s*c(?:ont(?:inue)?)?(?:\s+(.*))?$/,
  /^\s*fin(?:ish)?$/,
  /^\s*n(?:ext)?([+-])?(?:\s+(.*))?$/,
  /^\s*s(?:tep)?([+-])?(?:\s+(.*))?$/
]
@@Show_annotations_postcmd = 
[
 /^\s* down (?:\s+(.*))? .*$/x,
 /^\s* f(?:rame)? (?:\s+ (.*))? \s*$/x,
 /^\s* u(?:p)? (?:\s+(.*))?$/x
]

Instance Attribute Summary collapse

Attributes inherited from Processor

#interface

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Processor

#afmt, #aprint, #errmsg, #print, print, protect, #split_commands

Constructor Details

#initialize(interface = LocalInterface.new) ⇒ CommandProcessor

Returns a new instance of CommandProcessor.



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# File 'lib/ruby-debug/processor.rb', line 87

def initialize(interface = LocalInterface.new)
  @interface = interface
  @display = []

  @mutex = Mutex.new
  @last_cmd = nil
  @last_file = nil   # Filename the last time we stopped
  @last_line = nil   # line number the last time we stopped
  @debugger_breakpoints_were_empty = false # Show breakpoints 1st time
  @debugger_displays_were_empty = true # No display 1st time
  @debugger_context_was_dead = true # Assume we haven't started.
end

Instance Attribute Details

#display ⇒ Object (readonly)

Returns the value of attribute display.



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# File 'lib/ruby-debug/processor.rb', line 63

def display
  @display
end

Class Method Details

.annotate_location_and_text(output) ⇒ Object 



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# File 'lib/ruby-debug/processor.rb', line 131

def self.annotate_location_and_text(output)
  # FIXME: use annotations routines
  if Debugger.annotate.to_i > 2
    "\032\032source #{output}"
  elsif ENV['EMACS']
    "\032\032#{output}"
  else
    output
  end
end

.canonic_file(filename) ⇒ Object

Regularize file name. This is also used as a common funnel place if basename is desired or if we are working remotely and want to change the basename. Or we are eliding filenames.



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# File 'lib/ruby-debug/processor.rb', line 113

def self.canonic_file(filename)
  # For now we want resolved filenames
  if Command.settings[:basename]
    File.basename(filename)
  else
    # Cache this?
    Pathname.new(filename).cleanpath.to_s
  end
end

.print_location_and_text(file, line, context) ⇒ Object 



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# File 'lib/ruby-debug/processor.rb', line 123

def self.print_location_and_text(file, line, context)
  result = Debugger.printer.print("stop.suspend",
    file: canonic_file(file), line_number: line, line: Debugger.line_at(file, line),
    thnum: context && context.thnum, frames: context && context.stack_size
  )
  Debugger.handler.interface.print(annotate_location_and_text(result))
end

Instance Method Details

#at_breakpoint(context, breakpoint) ⇒ Object 



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# File 'lib/ruby-debug/processor.rb', line 142

def at_breakpoint(context, breakpoint)
  aprint 'stopped' if Debugger.annotate.to_i > 2
  n = Debugger.breakpoints.index(breakpoint) + 1
  file = CommandProcessor.canonic_file(breakpoint.source)
  line = breakpoint.pos
  if Debugger.annotate.to_i > 2
    print afmt("source #{file}:#{line}")
  end
  print pr(
    "breakpoints.stop_at_breakpoint", id: n, file: file, line: line, thread_id: Debugger.current_context.thnum
  )
  @last_breakpoint = breakpoint
end

#at_catchpoint(context, excpt) ⇒ Object 



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# File 'lib/ruby-debug/processor.rb', line 157

def at_catchpoint(context, excpt)
  aprint 'stopped' if Debugger.annotate.to_i > 2
  file = CommandProcessor.canonic_file(context.frame_file(0))
  line = context.frame_line(0)
  print afmt("%s:%d" % [file, line]) if ENV['EMACS']
  print "Catchpoint at %s:%d: `%s' (%s)\n", file, line, excpt, excpt.class
  fs = context.stack_size
  tb = caller(0)[-fs..-1]
  if tb
    for i in tb
      print "\tfrom %s\n", i
    end
  end
end

#at_line(context, file, line) ⇒ Object 



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# File 'lib/ruby-debug/processor.rb', line 188

def at_line(context, file, line)
  CommandProcessor.print_location_and_text(file, line, context) unless @last_breakpoint
  process_commands(context, file, line)
ensure
  @last_breakpoint = nil
end

#at_return(context, file, line) ⇒ Object 



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# File 'lib/ruby-debug/processor.rb', line 196

def at_return(context, file, line)
  context.stop_frame = -1
  CommandProcessor.print_location_and_text(file, line, context)
  process_commands(context, file, line)
end

#at_tracing(context, file, line) ⇒ Object 



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# File 'lib/ruby-debug/processor.rb', line 173

def at_tracing(context, file, line)
  return if defined?(Debugger::RDEBUG_FILE) &&
    Debugger::RDEBUG_FILE == file # Don't trace ourself
  @last_file = CommandProcessor.canonic_file(file)
  file = CommandProcessor.canonic_file(file)
  unless file == @last_file and @last_line == line and
      Command.settings[:tracing_plus]
    print("Tracing(%d):%s:%s %s" % [context.thnum, file, line, Debugger.line_at(file, line)])
    @last_file = file
    @last_line = line
  end
  always_run(context, file, line, 2)
end

#interface=(interface) ⇒ Object 



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# File 'lib/ruby-debug/processor.rb', line 100

def interface=(interface)
  @mutex.synchronize do
    @interface.close if @interface
    @interface = interface
  end
end