Class: DEBUGGER__::ThreadClient::Recorder

Inherits:
Object
  • Object
show all
Includes:
SkipPathHelper
Defined in:
lib/debug/thread_client.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from SkipPathHelper

#skip_internal_path?, #skip_location?, #skip_path?

Constructor Details

#initialize ⇒ Recorder

Returns a new instance of Recorder.



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# File 'lib/debug/thread_client.rb', line 1048

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 ⇒ Object

Returns the value of attribute backup_frames.



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# File 'lib/debug/thread_client.rb', line 1044

def backup_frames
  @backup_frames
end

#index ⇒ Object (readonly)

Returns the value of attribute index.



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# File 'lib/debug/thread_client.rb', line 1043

def index
  @index
end

#log ⇒ Object (readonly)

Returns the value of attribute log.



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# File 'lib/debug/thread_client.rb', line 1043

def log
  @log
end

Instance Method Details

#can_step_back? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/debug/thread_client.rb', line 1110

def can_step_back?
  log.size > @index
end

#current_frame ⇒ Object 



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# File 'lib/debug/thread_client.rb', line 1118

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

#current_position ⇒ Object

for debugging



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# File 'lib/debug/thread_client.rb', line 1130

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 ⇒ Object 



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# File 'lib/debug/thread_client.rb', line 1082

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

#enable ⇒ Object 



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# File 'lib/debug/thread_client.rb', line 1075

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

#enabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/debug/thread_client.rb', line 1089

def enabled?
  @tp_recorder.enabled?
end

#log_index ⇒ Object 



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# File 'lib/debug/thread_client.rb', line 1114

def log_index
  @log.size - @index
end

#replaying? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/debug/thread_client.rb', line 1106

def replaying?
  @index > 0
end

#step_back ⇒ Object 



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# File 'lib/debug/thread_client.rb', line 1093

def step_back
  @index += 1
end

#step_forward ⇒ Object 



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# File 'lib/debug/thread_client.rb', line 1097

def step_forward
  @index -= 1
end

#step_reset ⇒ Object 



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# File 'lib/debug/thread_client.rb', line 1101

def step_reset
  @index = 0
  @backup_frames = nil
end