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e ƒ n d S( s6 Support Eiffel-style preconditions and postconditions.( s functiont EiffelBaseMetaClassc B s& t Z d „ Z d „ Z e e ƒ Z RS( Nc C s, | i | ƒ t t | ƒ i | | | | ƒ S( N( t metat convert_methodst dictt superR t __new__t namet bases( R R R R ( ( t0 /usr/lib/python2.4/Demo/newmetaclasses/Eiffel.pyR s
c C sé g } xv | i ƒ D]h \ } } | i d ƒ p | i d ƒ o t | t ƒ p t ‚ q t | t ƒ o | i | ƒ q q Wxc | D][ } | i d | ƒ } | i d | ƒ } | p | o! | i | | | | ƒ | | <q† q† Wd S( sí Replace functions in dict with EiffelMethod wrappers.
The dict is modified in place.
If a method ends in _pre or _post, it is removed from the dict
regardless of whether there is a corresponding method.
t _pret _posts %s_pres %s_postN( t methodsR t iteritemst kt vt endswitht
isinstancet functiont AssertionErrort appendt mt gett pret postt clst make_eiffel_method( R R R R R
R R R ( ( R R s
( t __name__t
__module__R R t classmethod( ( ( R R s t EiffelMetaClass1c B s t Z d „ Z e e ƒ Z RS( Nc s0 ‡ ‡ ‡ d † } ˆ i o ˆ i | _ n | S( Nc sO ˆ o ˆ | | | Ž n ˆ | | | Ž } ˆ o ˆ | | | | Ž n | S( N( R t selft argst kwargst funct xR ( R R R R" ( R R! R ( R t method' s ( R# R! t __doc__( R! R R R# ( ( R! R R R R & s
( R R R t staticmethod( ( ( R R # s t EiffelMethodWrapperc B s t Z d „ Z d „ Z RS( Nc C s | | _ | | _ d S( N( t instR t _instt descrt _descr( R R' R) ( ( R t __init__8 s c O s | i i | i | | ƒ S( N( R R* t
callmethodR( R R ( R R R ( ( R t __call__< s ( R R R+ R- ( ( ( R R& 6 s t EiffelDescriptorc B s# t Z d „ Z d „ Z d „ Z RS( Nc C s7 | | _ | | _ | | _ | i | _ | i | _ d S( N( R! R t _funcR R R R
R R$ ( R R! R R ( ( R R+ A s
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t | | ƒ S( N( R& t objR ( R R0 R ( ( R t __get__I s c C s^ | i o | i | | | Ž n | i | | | Ž } | i o | i | | | | Ž n | S( N( R R R' R R R/ R" R
( R R' R R R" ( ( R R, L s
( R R R+ R1 R, ( ( ( R R. ? s t EiffelMetaClass2c B s t Z e Z RS( N( R R R. R ( ( ( R R2 T s c s! d f ‡ d † ƒ Y} d | f d „ ƒ Y} d | f ‡ d † ƒ Y‰ | ƒ } | i d ƒ | i d ƒ y | i d ƒ Wn t j
o n Xt p t ‚ ˆ ƒ } y | i d ƒ Wn t j
o n Xt p t ‚ y | i d ƒ Wn t j
o n Xt p t ‚ | i d
ƒ d S( Nt Eiffelc s t Z ˆ Z RS( N( R R t metaclasst
__metaclass__( ( R4 ( R R3 Z s t Testc B s, t Z d „ Z d „ Z d „ Z d „ Z RS( Nc C s | d S( s Make it a little largeri N( t arg( R R7 ( ( R R _ s c C s | d S( s Make it a little largeri N( R7 ( R R7 ( ( R t m2c s c C s | d j p t ‚ d S( Ni ( R7 R ( R R7 ( ( R t m2_preg s c C s | | j p t ‚ d S( N( t resultR7 R ( R R: R7 ( ( R t m2_postj s ( R R R R8 R9 R; ( ( ( R R6 ] s t Subc s t Z d „ Z ‡ d † Z RS( Nc C s | d S( Ni ( R7 ( R R7 ( ( R R8 n s c s1 t ˆ | ƒ i | | ƒ | d j p t ‚ d S( Nid ( R R< R R; t ResultR7 R ( R R= R7 ( R< ( R R; p s ( R R R8 R; ( ( R< ( R R< m s i i i
i ( R3 R6 R< t tR R8 R t Falset s( R4 R< R3 R@ R> R6 ( ( R4 R< R t _testY s.
t __main__N( R$ t newR t typeR R R& t objectR. R2 RA R ( R R& R2 RA R R R. ( ( R t ? s
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