Class: FFI::Enum

Inherits:
Object
  • Object
show all
Defined in:
lib/evoasm/ffi_ext.rb

Instance Method Summary collapse

Instance Method Details

#flags(flags, shift: false) ⇒ Object 



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# File 'lib/evoasm/ffi_ext.rb', line 6

def flags(flags, shift: false)
  flags.inject(0) do |acc, flag|
    flag_value = self[flag]
    raise ArgumentError, "unknown flag '#{flag}'" if flag_value.nil?
    flag_value = 1 << flag_value if shift
    acc | flag_value
  end
end

#keys(values) ⇒ Object 



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# File 'lib/evoasm/ffi_ext.rb', line 23

def keys(values)
  values.map do |value|
    enum_key = self[value]
    raise ArgumentError, "unknown enum value '#{value}'" if enum_key.nil?
    enum_key
  end
end

#values(keys) ⇒ Object 



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# File 'lib/evoasm/ffi_ext.rb', line 15

def values(keys)
  keys.map do |key|
    enum_value = self[key]
    raise ArgumentError, "unknown enum key '#{key}'" if enum_value.nil?
    enum_value
  end
end