Object-Oriented Programming

Touying provides some convenient utility functions for object-oriented programming.

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#let call-or-display(self, it) = {
  if type(it) == function {
    return it(self)
  } else {
    return it
  }
}

Call or display as-is.

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#let methods(self) = { .. }

Used to bind self to methods and return, very commonly used.