Class: RASN2::Types::Null

Inherits:
Primitive show all
Defined in:
lib/rasn2/types/null.rb

Overview

ASN.1 Null

Author:

  • Sylvain Daubert

Constant Summary collapse

ID =

Null id value

0x05

Constants inherited from Primitive

Primitive::ASN1_PC

Constants inherited from Base

Base::CLASSES, Base::CLASS_MASK, Base::INDEFINITE_LENGTH, Base::MULTI_OCTETS_ID

Instance Attribute Summary

Attributes inherited from Base

#asn1_class, #default, #model, #name, #options

Instance Method Summary collapse

Methods inherited from Base

#==, #asn1_class_to_s, #attributes, #bin2hex, #build, #check_id, #colorize, #common_inspect, constrained?, #constructed?, #der2name, #do_parse, #do_parse_explicit, #do_parse_explicit_with_tracing, #do_parse_with_tracing, #encode_identifier_octets, #encode_size, encoded_type, #explicit?, #explicit_type, #find_type, #get_data, #get_length, #id, #id2octets, #id_value, #implicit?, #indent, #initialize, #initialize_copy, #inspect_value, #msg_type, #optional?, parse, #parse!, #pc_bit, #primitive?, #private?, #raise_id_error, #raise_on_indefinite_length, #self2name, #set_class, #set_default, #set_optional, #set_tag, #set_value, #specific_initializer, start_tracing, stop_tracing, #tag_id_to_integer, #tagged?, #to_der, #trace, #trace_data, #trace_real, #tracer, type, #type, #universal?, #unpack, #unsigned_to_chained_octets, #value, #value=, #value?, #value_size, #void_value

Methods included from Helpers::Colorize

#begin_colorizer, #brace_surround, #colorize, #colorize_attribute, #colorize_bool, #colorize_class, #colorize_default, #colorize_enum, #colorize_id, #colorize_name, #colorize_nil, #colorize_value, #colorizer, #colorizer=, #end_colorizer, #int_with_hex, #length_specifier, #parens_hex

Constructor Details

This class inherits a constructor from RASN2::Types::Base

Instance Method Details

#can_build? ⇒ Boolean

Build only if not optional

Returns:



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# File 'lib/rasn2/types/null.rb', line 21

def can_build?
  !optional?
end

#der_to_value(der, ber: false) ⇒ void

This method returns an undefined value.

Check der string

Parameters:

  • der (String)
  • ber (::Boolean) (defaults to: false)

Raises:



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# File 'lib/rasn2/types/null.rb', line 30

def der_to_value(der, ber: false) # rubocop:disable Lint/UnusedMethodArgument
  raise ASN1Error, 'NULL should not have content!' if der.length.positive?

  @no_value = true
  @value = void_value
end

#inspect(level = 0, color: true) ⇒ String

Returns:

  • (String) 


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# File 'lib/rasn2/types/null.rb', line 12

def inspect(level=0, color: true)
  begin_colorizer(color)
  result = common_inspect(level)
  end_colorizer
  result
end