Class: Byebug::Interface

Inherits:
Object
  • Object
show all
Includes:
FileFunctions
Defined in:
lib/byebug/interface.rb

Overview

Main Interface class

Contains common functionality to all implemented interfaces.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from FileFunctions

#get_line, #get_lines, #n_lines, #normalize

Constructor Details

#initialize ⇒ Interface

Returns a new instance of Interface.



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# File 'lib/byebug/interface.rb', line 17

def initialize
  @command_queue, @history = [], History.new
end

Instance Attribute Details

#command_queue ⇒ Object

Returns the value of attribute command_queue.



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# File 'lib/byebug/interface.rb', line 14

def command_queue
  @command_queue
end

#error ⇒ Object (readonly)

Returns the value of attribute error.



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# File 'lib/byebug/interface.rb', line 15

def error
  @error
end

#history ⇒ Object

Returns the value of attribute history.



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# File 'lib/byebug/interface.rb', line 14

def history
  @history
end

#input ⇒ Object (readonly)

Returns the value of attribute input.



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# File 'lib/byebug/interface.rb', line 15

def input
  @input
end

#output ⇒ Object (readonly)

Returns the value of attribute output.



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# File 'lib/byebug/interface.rb', line 15

def output
  @output
end

Instance Method Details

#autorestore ⇒ Object

Restores history according to autosave setting.



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# File 'lib/byebug/interface.rb', line 92

def autorestore
  history.restore if Setting[:autosave]
end

#autosave ⇒ Object

Saves or clears history according to autosave setting.



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# File 'lib/byebug/interface.rb', line 85

def autosave
  Setting[:autosave] ? history.save : history.clear
end

#close ⇒ Object 



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# File 'lib/byebug/interface.rb', line 79

def close
end

#confirm(prompt) ⇒ Object

Confirms user introduced an affirmative response to the input stream.



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# File 'lib/byebug/interface.rb', line 75

def confirm(prompt)
  readline(prompt) == 'y'
end

#errmsg(message) ⇒ Object

Prints an error message to the error stream.



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# File 'lib/byebug/interface.rb', line 57

def errmsg(message)
  error.print("*** #{message}\n")
end

#print(message) ⇒ Object 



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# File 'lib/byebug/interface.rb', line 68

def print(message)
  output.print(message)
end

#puts(message) ⇒ Object

Prints an output message to the output stream.



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# File 'lib/byebug/interface.rb', line 64

def puts(message)
  output.puts(message)
end

#read_command(prompt) ⇒ Object

Pops a command from the input stream.



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# File 'lib/byebug/interface.rb', line 24

def read_command(prompt)
  return command_queue.shift unless command_queue.empty?

  cmds = read_input(prompt)
  return unless cmds

  command_queue.concat(cmds)
  command_queue.shift
end

#read_file(filename) ⇒ Object

Pushes lines in filename to the command queue.



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# File 'lib/byebug/interface.rb', line 38

def read_file(filename)
  command_queue.concat(get_lines(filename))
end

#read_input(prompt, save_hist = true) ⇒ Object

Reads a new line from the interface’s input stream.



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# File 'lib/byebug/interface.rb', line 45

def read_input(prompt, save_hist = true)
  line = readline(prompt)
  return unless line

  history.push(line) if save_hist

  split_commands(line)
end