Class: Kaitai::Struct::Visualizer::KSErrorMatcher

Inherits:
Object
  • Object
show all
Defined in:
lib/kaitai/struct/visualizer/ks_error_matcher.rb

Class Method Summary collapse

Class Method Details

.===(exc) ⇒ Object 



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# File 'lib/kaitai/struct/visualizer/ks_error_matcher.rb', line 7

def self.===(exc)
  return true if exc.is_a?(EOFError)
  return true if exc.is_a?(ArgumentError)
  return true if exc.is_a?(NoMethodError)
  return true if exc.is_a?(TypeError)

  # Raised by the runtime library's seek() implementation for negative offsets, see
  # https://github.com/kaitai-io/kaitai_struct_ruby_runtime/blob/0fa62e64949f68cb001b58b7b45e15580d154ac9/lib/kaitai/struct/struct.rb#L637
  return true if exc.is_a?(Errno::EINVAL)

  # KaitaiStructError is a common ancestor of all Validation*Error and
  # UndecidedEndiannessError classes since 0.9. However, it doesn't exist in
  # the runtime library before 0.9, so we first make sure it's defined
  # before we access it (accessing an undefined item would result in a
  # NameError).
  return true if
    defined?(Kaitai::Struct::KaitaiStructError) &&
    exc.is_a?(Kaitai::Struct::KaitaiStructError)
  # Since 0.9, UndecidedEndiannessError is a subclass of KaitaiStructError
  # (which was already handled above), but in 0.8 it was derived directly
  # from Exception (in which case it hasn't been handled yet). Also,
  # switchable default endianness is a new feature in 0.8, so the
  # UndecidedEndiannessError class doesn't exist in older runtimes at all.
  return true if
    defined?(Kaitai::Struct::Stream::UndecidedEndiannessError) &&
    exc.is_a?(Kaitai::Struct::Stream::UndecidedEndiannessError)
  # UnexpectedDataError is no longer thrown by KSC-generated code since 0.9 -
  # it has been superseded by ValidationNotEqualError. It still exists
  # even in the 0.10 runtime library, but it will be removed one day, so
  # we'll also check if it's defined.
  return true if
    defined?(Kaitai::Struct::Stream::UnexpectedDataError) &&
    exc.is_a?(Kaitai::Struct::Stream::UnexpectedDataError)

  false
end