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# frozen_string_literal: true
require_relative "helpers/reflection"
require "byebug/byebug"
require_relative "context"
require_relative "breakpoint"
require_relative "interface"
require_relative "processors/script_processor"
require_relative "processors/post_mortem_processor"
require_relative "commands"
require_relative "remote"
require_relative "printers/plain"
#
# Main debugger's container module. Everything is defined under this module
#
module Byebug
include Helpers::ReflectionHelper
extend self
#
# Configuration file used for startup commands. Default value is .byebugrc
#
attr_accessor :init_file
self.init_file = ".byebugrc"
#
# Debugger's display expressions
#
attr_accessor :displays
self.displays = []
#
# Running mode of the debugger. Can be either:
#
# * :attached => Attached to a running program through the `byebug` method.
# * :standalone => Started through `byebug` script.
# * :off => Ignoring any `byebug` method calls.
#
attr_accessor :mode
#
# Runs normal byebug initialization scripts.
#
# Reads and executes the commands from init file (if any) in the current
# working directory. This is only done if the current directory is different
# from your home directory. Thus, you can have more than one init file, one
# generic in your home directory, and another, specific to the program you
# are debugging, in the directory where you invoke byebug.
#
def run_init_script
rc_dirs.each do |dir|
rc_file = File.expand_path(File.join(dir, init_file))
next unless File.exist?(rc_file)
run_rc_file(rc_file)
end
end
def self.load_settings
Dir.glob(File.join(__dir__, "settings", "*.rb")).each do |file|
require file
end
constants.grep(/[a-z]Setting/).map do |name|
setting = const_get(name).new
Byebug::Setting.settings[setting.to_sym] = setting
end
end
#
# Saves information about the unhandled exception and gives a byebug
# prompt back to the user before program termination.
#
def self.handle_post_mortem
return unless raised_exception
context = raised_exception.__bb_context
PostMortemProcessor.new(context).at_line
end
at_exit { Byebug.handle_post_mortem if Byebug.post_mortem? }
private
#
# Runs a initialization script file
#
def run_rc_file(rc_file)
interface = ScriptInterface.new(rc_file)
ScriptProcessor.new(nil, interface).process_commands
end
#
# List of folders to load rc files from
#
# @note Files will be loaded in the order specified here.
#
def rc_dirs
[ENV["HOME"], Dir.pwd].compact.uniq
end
end
Byebug.load_settings
#
# Extends the extension class to be able to pass information about the
# debugging environment from the c-extension to the user.
#
class Exception
attr_reader :__bb_context
end
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