Examples of translation projections

8.1 If-elif-else

The If-elif-else rule has only one alternative:

Python

  def f(cond1, a, cond2, b, e):
    if cond1:
      return a
    elif cond2:
      return b
    else:
      return c

EO

[] > f
  [xcond1NotCopied xaNotCopied xcond2NotCopied xbNotCopied xeNotCopied] > apply
    [stackUp] > @
      cage > tmp
      xcond1NotCopied' > xcond1
      xaNotCopied' > xa
      xcond2NotCopied' > xcond2
      xbNotCopied' > xb
      xeNotCopied' > xe
      seq > @
        stdout "xf\n"
        xcond1.<
        xa.<
        xcond2.<
        xb.<
        xe.<
        (xcond1).if
          seq
            stackUp.forward (return (xa))
            TRUE
          seq
            (xcond2).if
              seq
                stackUp.forward (return (xb))
                TRUE
              seq
                stackUp.forward (return (xc))
                TRUE
            TRUE
        123

Tests

https://github.com/polystat/py2eo/wiki/Tests-Structure#the-if-statement

8.4 Try

try_2

Python

  def f(a, b):
    try:
      return a
    finally:
      return b

EO

[] > f
  [xaNotCopied xbNotCopied] > apply
    [stackUp] > @
      cage > tmp
      xaNotCopied' > xa
      xbNotCopied' > xb
      seq > @
        stdout "xf\n"
        xa.<
        xb.<
        write.
          xcurrent-exception
          goto
            [stackUp]
              seq > @
                stackUp.forward (return (xa))
                stackUp.forward raiseNothing
        seq
          if.
            xcurrent-exception.xclass.xid.eq (raiseNothing.xclass.xid)
            seq
            0
          stackUp.forward (return (xb))
          (xcurrent-exception.xclass.xid.neq (raiseNothing.xclass.xid)).if (stackUp.forward xcurrent-exception) 0
        123

Tests

https://github.com/polystat/py2eo/wiki/Tests-Structure#the-try-statement