Class: DbgRb::Impl

Inherits:
Object
  • Object
show all
Defined in:
lib/dbg-rb.rb

Constant Summary collapse

@@color_code = 
nil
@@highlight = 
false

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.color_code=(val) ⇒ Object 



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# File 'lib/dbg-rb.rb', line 23

def self.color_code=(val)
  @@color_code = val
end

.highlight!(wrapper) ⇒ Object 



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# File 'lib/dbg-rb.rb', line 27

def self.highlight!(wrapper)
  @@highlight = wrapper
end

Instance Method Details

#colorize(str, color_code) ⇒ Object 



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# File 'lib/dbg-rb.rb', line 82

def colorize(str, color_code)
  "\e[#{color_code}m#{str}\e[0m"
end

#dbg!(*msgs) ⇒ Object 



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# File 'lib/dbg-rb.rb', line 31

def dbg!(*msgs)
  loc = caller_locations.first(3).last.to_s
  matching_loc = loc.match(/.+(rb)\:\d+\:(in)\s/)
  src = if !matching_loc.nil?
      matching_loc[0][0..-5]
    else
      loc
    end
  file, line = src.split(":")
  file = file.split("/").last(2).join("/")
  src = "[#{file}:#{line}]"

  msgs.each_with_index do |obj, i|
    first = i == 0
    last = i == (msgs.size - 1)

    val = if obj.is_a?(Symbol)
        begin
          val = binding.of_caller(4).local_variable_get(obj)
          val = format_val(val)

          "#{obj} = #{val}"
        rescue NameError
          ":#{obj}"
        end
      else
        format_val(obj)
      end

    output = "#{src} #{val}"

    if @@highlight
      if first
        output = "#{@@highlight}\n#{output}"
      end

      if last
        output = "#{output}\n#{@@highlight}"
      end
    end

    if @@color_code != nil
      output = colorize(output, @@color_code)
    end

    puts output
  end

  nil
end

#format_val(val) ⇒ Object 



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# File 'lib/dbg-rb.rb', line 86

def format_val(val)
  if val.nil?
    "nil"
  elsif val.is_a?(String)
    "\"#{val}\""
  elsif val.is_a?(Hash) || val.is_a?(Array)
    JSON.pretty_generate(val)
  else
    val
  end
end