Question

I’m trying to debug simple ruby file in Aptana 3.

class HelloWorld
  
def initialize()
    
end
  
def greet()
  puts "hello world"
end
end

h=HelloWorld.new
h.greet

breakpoint is set to

h.greet

after I started debug, debugger starts, but when it tries to initialize ruby class, debugger disconnect with message

Fast Debugger (ruby-debug-ide 0.4.9) listens on :54749
Exception in DebugThread loop: undefined method `is_binary_data?' for "#<HelloWorld:0x85915fc>":String  

when I set breakpoint to

h=HelloWorld.new

debugger starts, but after I stepped into initialize() constructor, it disconnects with previous message

My gems list:

*** LOCAL GEMS ***

archive-tar-minitar (0.5.2)
bigdecimal (1.1.0)
columnize (0.3.6)
io-console (0.3)
json (1.5.4)
linecache19 (0.5.13)
minitest (2.5.1)
rake (0.9.2.2)
rdoc (3.9.4)
ruby-debug-base19 (0.11.26)
ruby-debug-ide19 (0.4.12)
ruby-debug19 (0.11.6)
ruby_core_source (0.1.5)

I have successfully applied these instructions, to solve problems with debugging but I still got this exception message

Any answer is welcome which shed a light to this problem.

Thank you.

Answer 1

My ruby version:

ruby 1.9.3p0 (2011-10-30) [i386-mingw32]

My gems list:

...
linecache19 (0.5.13)
ruby-debug-base19 (0.11.26)
ruby-debug-ide19 (0.4.12)
...

In Aptana 3, I got same error.

Exception in DebugThread loop: undefined method `is_binary_data?' for "#<PostsController:0x65a8da8>":String

See ruby-debug-ide19-0.4.12 / xml_printer.rb .

  value_str = "[Binary Data]" if value_str.is_binary_data?
  print("<variable name=\"%s\" kind=\"%s\" value=\"%s\" type=\"%s\" hasChildren=\"%s\" objectId=\"%#+x\"/>",
      CGI.escapeHTML(name), kind, CGI.escapeHTML(value_str), value.class,
      has_children, value.respond_to?(:object_id) ? value.object_id : value.id)

See http://apidock.com/ruby/String/is_binary_data%3F .

String#is_binary_data?

This method is deprecated or moved on the latest stable version. The last existing version (v1_9_1_378) is shown here.

 def is_binary_data?
   ( self.count( "^ -~", "^\r\n" ).fdiv(self.size) > 0.3 || self.index( "\x00" ) ) unless empty?
 end

Add this code to xml_printer.rb (or to your code).

class String
  def is_binary_data?
    ( self.count( "^ -~", "^\r\n" ).fdiv(self.size) > 0.3 || self.index( "\x00" ) ) unless empty?
  end
end

Thank you.