Module: FFI

Defined in:
lib/ffi/extra.rb

Defined Under Namespace

Modules: Library Classes: Pointer

Class Method Summary collapse

Class Method Details

.type_size(type) ⇒ Object 



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# File 'lib/ffi/extra.rb', line 32

def self.type_size (type)
  type = FFI.find_type(type) if type.is_a?(Symbol)

  if type.is_a?(Type::Builtin) || type.is_a?(Class) && type.ancestors.member?(FFI::Struct) || type.ancestors.member?(FFI::ManagedStruct)
    type.size
  elsif type.respond_to? :from_native
    type.native_type.size
  else
    raise ArgumentError, 'you have to pass a Struct, a Builtin type or a Symbol'
  end
end