Class: PryMoves::Step

Inherits:
TraceCommand show all
Defined in:
lib/commands/step.rb

Instance Method Summary collapse

Methods inherited from TraceCommand

#initialize, #start_tracing, #stop_tracing, trace, #trace_obj, #traced_method?, #tracing_func

Methods included from TraceHelpers

#current_frame_digest, #current_frame_type, #debug_info, #frame_digest, #frame_type, #redirect_step?

Constructor Details

This class inherits a constructor from PryMoves::TraceCommand

Instance Method Details

#init(binding_) ⇒ Object 



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# File 'lib/commands/step.rb', line 3

def init(binding_)
  @step_into_funcs = nil
  @start_line = binding_.eval('__LINE__')
  @caller_digest = frame_digest(binding_)
  func = @command[:param]
  redirect_step? binding_ # set @step_into_funcs from initial binding
  if func == '+'
    PryMoves.step_in_everywhere = true
  elsif func
    @find_straight_descendant = true
    @step_into_funcs = [func]
    @step_into_funcs << '=initialize' if ['new', '=new'].include? func
  end
end

#keep_search_method?(binding_) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/commands/step.rb', line 59

def keep_search_method? binding_
  return true unless method_matches? binding_.eval('__callee__')

  return true if @find_straight_descendant &&
    # if we want to step-in only into straight descendant
    @caller_digest != current_frame_digest(upward: 1 + 1) # 1 for getting parent and 1 for 'def keep_search_method?'
  @find_straight_descendant = false

  return true if redirect_step? binding_
end

#method_matches?(method) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/commands/step.rb', line 70

def method_matches?(method)
  @step_into_funcs.any? do |pattern|
    if pattern.is_a? Symbol
      method == pattern
    elsif pattern.is_a? Regexp
      method.to_s.match pattern
    elsif pattern.start_with? '='
      "=#{method}" == pattern
    else
      method.to_s.include? pattern
    end
  end
end

#trace(event, file, line, method, binding_) ⇒ Object 



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# File 'lib/commands/step.rb', line 18

def trace(event, file, line, method, binding_)
  if binding_.local_variable_defined? :pry_moves_skip
    finish_cmd = {binding: binding_}
    stop_tracing
    PryMoves::Finish.new finish_cmd, @pry_start_options do |binding|
      start_tracing
    end
    return
  end

  @const_missing_level ||= 0
  if method == :const_missing
    if event == 'call'
      @const_missing_level += 1
    elsif event == 'return'
      @const_missing_level -= 1
    end
  end
  return if @const_missing_level > 0

  return unless event == 'line'

  if PryMoves.step_in_everywhere
    return true
  elsif @step_into_funcs
    if @call_depth < 0
      PryMoves.messages << "⚠️  Unable to find function with name #{@step_into_funcs.join(',')}"
      return true
    end

    return false if keep_search_method? binding_
  elsif redirect_step? binding_
    return false
  elsif binding_.local_variable_defined? :hide_from_stack and
        not @method.within?(file, line, method)
    return false
  end

  true
end