Class: Closure::ShowExceptions::Javascript

Inherits:
Object
  • Object
show all
Defined in:
lib/closure/show_exceptions.rb

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Javascript 



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# File 'lib/closure/show_exceptions.rb', line 30

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/closure/show_exceptions.rb', line 34

def call(env)
  @app.call(env)
rescue Closure::Compiler::Error => e
  raise e unless env[Script::ENV_ERROR_CONTENT_TYPE] == 'application/javascript'
  body = 'try{console.error('
  body += '"Closure Compiler: %s\n", '
  body += "#{e.message.rstrip.dump}"
  body += ')}catch(err){}'
  [200,
   {"Content-Type" => "application/javascript",
    "Content-Length" => body.size.to_s},
   [body]]
rescue Closure::Templates::Error => e
  raise e unless env[Script::ENV_ERROR_CONTENT_TYPE] == 'application/javascript'
  body = 'try{console.error('
  body += '"Closure Templates: 1 error(s)\n$s", '
  body += "#{e.message.rstrip.dump}"
  body += ')}catch(err){}'
  [200,
   {"Content-Type" => "application/javascript",
    "Content-Length" => body.size.to_s},
   [body]]
rescue StandardError, LoadError, SyntaxError => e
  raise e unless env[Script::ENV_ERROR_CONTENT_TYPE] == 'application/javascript'
  body = 'try{console.error('
  if e.class.to_s == e.message.rstrip
      body += '"Closure Script: %s\n%s", '
  else
      body += '"Closure Script: %s\n\n%s\n\n%s", '
      body += "#{e.class.to_s.dump}, "
  end
  body += "#{e.message.rstrip.dump}, "
  body += "#{e.backtrace.join("\n").dump}"
  body += ')}catch(err){}'
  [200,
   {"Content-Type" => "application/javascript",
    "Content-Length" => body.size.to_s},
   [body]]
end