Class: DL::CUnionEntity

Inherits:
CStructEntity show all
Includes:
PackInfo
Defined in:
lib/dl/struct.rb

Constant Summary

Constants included from PackInfo

PackInfo::ALIGN_MAP, PackInfo::PACK_MAP, PackInfo::SIZE_MAP

Class Method Summary collapse

Instance Method Summary collapse

Methods included from PackInfo

align

Methods inherited from CStructEntity

#[], #[]=, #assign_names, #initialize, #to_s

Methods included from ValueUtil

#signed_value, #unsigned_value, #wrap_arg, #wrap_args

Methods inherited from CPtr

#+, #+@, #-, #-@, #<=>, #==, [], #[], #[]=, #eql?, #free, #free=, #initialize, #inspect, #null?, #ptr, #ref, #size, #size=, #to_i, #to_int, to_ptr, #to_s, #to_str, #to_value

Constructor Details

This class inherits a constructor from DL::CStructEntity

Class Method Details

.malloc(types, func = nil) ⇒ Object 



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# File 'lib/dl/struct.rb', line 175

def CUnionEntity.malloc(types, func=nil)
  addr = DL.malloc(CUnionEntity.size(types))
  CUnionEntity.new(addr, types, func)
end

.size(types) ⇒ Object 



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# File 'lib/dl/struct.rb', line 180

def CUnionEntity.size(types)
  size   = 0
  types.each_with_index{|t,i|
    if( t.is_a?(Array) )
      tsize = PackInfo::SIZE_MAP[t[0]] * t[1]
    else
      tsize = PackInfo::SIZE_MAP[t]
    end
    if( tsize > size )
      size = tsize
    end
  }
end

Instance Method Details

#set_ctypes(types) ⇒ Object 



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# File 'lib/dl/struct.rb', line 194

def set_ctypes(types)
  @ctypes = types
  @offset = []
  @size   = 0
  types.each_with_index{|t,i|
    @offset[i] = 0
    if( t.is_a?(Array) )
      size = SIZE_MAP[t[0]] * t[1]
    else
      size = SIZE_MAP[t]
    end
    if( size > @size )
      @size = size
    end
  }
end