Class: PryMoves::Formatter

Inherits:
Object
  • Object
show all
Defined in:
lib/pry-moves/formatter.rb

Constant Summary collapse

MAX_PARAMS = 
5
PATH_TRASH = 
defined?(Rails) ? Rails.root.to_s : Dir.pwd

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(colorize = true) ⇒ Formatter

Returns a new instance of Formatter.



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# File 'lib/pry-moves/formatter.rb', line 5

def initialize colorize = true
  @colorize = colorize
end

Instance Attribute Details

#colorize ⇒ Object

Returns the value of attribute colorize.



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# File 'lib/pry-moves/formatter.rb', line 3

def colorize
  @colorize
end

Instance Method Details

#cut_string(str) ⇒ Object 



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# File 'lib/pry-moves/formatter.rb', line 55

def cut_string str
  return str unless str
  str.length > 50 ? "#{str.first 50}..." : str
end

#first_line(str) ⇒ Object 



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# File 'lib/pry-moves/formatter.rb', line 51

def first_line str
  str.split("\n").first
end

#format_arg(binding, arg_name) ⇒ Object 



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# File 'lib/pry-moves/formatter.rb', line 42

def format_arg binding, arg_name
  arg = begin
    binding.eval(arg_name.to_s)
  rescue Exception
    "?"
  end
  format_obj arg
end

#format_obj(obj) ⇒ Object 



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# File 'lib/pry-moves/formatter.rb', line 68

def format_obj(obj)
  if obj.is_a? String
    format_obj2 cut_string first_line obj
  else
    first_line format_obj2 obj
  end
end

#format_obj2(obj) ⇒ Object 



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# File 'lib/pry-moves/formatter.rb', line 76

def format_obj2(obj)
  if @colorize
    PryMoves::Painter.colorize obj
  else
    i = obj.inspect
    i.start_with?('#<') ? obj.class.to_s : i
  end
end

#method_signature(binding) ⇒ Object 



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# File 'lib/pry-moves/formatter.rb', line 10

def method_signature(binding)
  meth = binding.eval('__method__')
  meth_obj = meth ? Pry::Method.from_binding(binding) : nil
  if !meth_obj
    ""
  elsif meth_obj.undefined?
    "#{meth_obj.name}(UNKNOWN) (undefined method)"
  else
    args = meth_obj.parameters.map.with_index do |(type, name), i|
      if name
        value = format_arg binding, name.to_s
        show_value = true
      else
        name = (type == :block ? 'block' : "arg#{i + 1}")
      end
      name = case type
        when :req   then "#{name} ="
        when :key   then "#{name}:"
        when :opt   then "#{name}=?"
        when :rest  then "*#{name}"
        when :block then "&#{name}"
        else '?'
      end
      show_value ? "#{name} #{value}" : name
    end
    if args.count > MAX_PARAMS
      args = args.first(MAX_PARAMS) + ["(#{args.count - MAX_PARAMS} more params)…"]
    end
    "#{meth_obj.name}(#{args.join(', ')})"
  end
end

#shorten_path(path) ⇒ Object 



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# File 'lib/pry-moves/formatter.rb', line 62

def shorten_path(path)
  path = path.gsub( /^#{PATH_TRASH}\//, '')
  PryMoves::Backtrace.trim_path ?
    File.basename(path, ".*") : path
end