Exception: Svn::Error

Inherits:
RuntimeError
  • Object
show all
Defined in:
lib/svn/errors.rb

Constant Summary collapse

ERROR_CLASSES = 
{}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(message_or_c_error) ⇒ Error

Returns a new instance of Error.



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# File 'lib/svn/errors.rb', line 66

def initialize( message_or_c_error )
  if message_or_c_error.is_a? CError
    super( message_or_c_error.cause_message )
    @c_error = message_or_c_error
  else
    super( message_or_c_error )
  end
end

Instance Attribute Details

#c_error ⇒ Object (readonly)

Returns the value of attribute c_error.



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# File 'lib/svn/errors.rb', line 64

def c_error
  @c_error
end

Class Method Details

.add(code, class_or_name) ⇒ Object 



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# File 'lib/svn/errors.rb', line 31

def add( code, class_or_name )
  klass = nil # keep in scope

  if class_or_name.is_a? Class
    klass = class_or_name
  else
    name = class_or_name
    begin
      # fetch an existing error class and save it for the error code
      klass = Svn.const_get( name )
    rescue NameError => err
      # create the error class and return it
      $stderr.puts "Creating #{name} for #{code}" if $debug_svn_errors
      klass = Svn.const_set( name, Class.new( Svn::Error ) )
    end
  end

  ERROR_CLASSES[code] = klass
end

.check_and_raise(err_ptr) ⇒ Object

checks error and raises an exception for error if necessary

Raises:



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# File 'lib/svn/errors.rb', line 52

def check_and_raise( err_ptr )
  return if err_ptr.null?
  raise specific_error_class( err_ptr ).new( err_ptr.message )
end

.class_name_for(message) ⇒ Object

used to turn generic messages for unknown errors into class names e.g., “Repository creation failed” => ‘RepositoryCreationFailedError’



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# File 'lib/svn/errors.rb', line 14

def class_name_for( message )
  message.split(/\s+/).each(&:capitalize!).join + 'Error'
end

.get(code) ⇒ Object 



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# File 'lib/svn/errors.rb', line 27

def get( code )
  ERROR_CLASSES[code]
end

.return_check ⇒ Object

returns a proc that calls check_and_raise



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# File 'lib/svn/errors.rb', line 58

def return_check
  @@return_check ||= Proc.new { |ptr| Error.check_and_raise( ptr ) }
end

.specific_error_class(c_error) ⇒ Object 



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# File 'lib/svn/errors.rb', line 18

def specific_error_class( c_error )
  # if an error class is already set, return it. otherwise, create a new
  # one from the error's generic message
  (
      get( c_error.code ) ||
      add( c_error.code, class_name_for( c_error.generic_message ) )
    )
end