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

Returns a new instance of Javascript.



30
31
32
 
# File 'lib/closure/show_exceptions.rb', line 30

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object 



34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
 
# 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