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Class: DEBUGGER__::ThreadClient::Recorder

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Instance Chain:
Inherits: Object
Defined in: lib/debug/thread_client.rb

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.newRecorder

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1145

def initialize
  @log = []
  @index = 0
  @backup_frames = nil
  thread = Thread.current

  @tp_recorder ||= TracePoint.new(:line){|tp|
    next unless Thread.current == thread
    # can't be replaced by skip_location
    next if skip_internal_path?(tp.path)
    loc = caller_locations(1, 1).first
    next if skip_location?(loc)

    frames = DEBUGGER__.capture_frames(__dir__)
    frames.each{|frame|
      if b = frame.binding
        frame.binding = nil
        frame._local_variables = b.local_variables.map{|name|
          [name, b.local_variable_get(name)]
        }.to_h
        frame._callee = b.eval('__callee__')
      end
    }
    @log << frames
  }
end

Instance Attribute Details

#backup_frames (rw)

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1141

attr_accessor :backup_frames

#can_step_back?Boolean (readonly)

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1207

def can_step_back?
  log.size > @index
end

#enabled?Boolean (readonly)

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1186

def enabled?
  @tp_recorder.enabled?
end

#index (readonly)

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1140

attr_reader :log, :index

#log (readonly)

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1140

attr_reader :log, :index

#replaying?Boolean (readonly)

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1203

def replaying?
  @index > 0
end

Instance Method Details

#current_frame

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1215

def current_frame
  if @index == 0
    f = @backup_frames
    @backup_frames = nil
    f
  else
    frames = @log[log_index]
    frames
  end
end

#current_position

for debugging

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1227

def current_position
  puts "INDEX: #{@index}"
  li = log_index
  @log.each_with_index{|frame, i|
    loc = frame.first&.location
    prefix = i == li ? "=> " : '   '
    puts "#{prefix} #{loc}"
  }
end

#disable

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1179

def disable
  if @tp_recorder.enabled?
    @log.clear
    @tp_recorder.disable
  end
end

#enable

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1172

def enable
  unless @tp_recorder.enabled?
    @log.clear
    @tp_recorder.enable
  end
end

#log_index

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1211

def log_index
  @log.size - @index
end

#step_back

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1190

def step_back
  @index += 1
end

#step_forward

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1194

def step_forward
  @index -= 1
end

#step_reset

[ GitHub ]

  
# File 'lib/debug/thread_client.rb', line 1198

def step_reset
  @index = 0
  @backup_frames = nil
end