-=[ Mr. Bumblebee ]=-
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!| ˆ f S( sF Recreate the parameters for a function using introspection.
:return: (function_params, calling_params, default_values)
function_params: is a string representing the parameters of the
function. (such as "a, b, c=None, d=1")
This is used in the function declaration.
calling_params: is another string representing how you would call the
function with the correct parameters. (such as "a, b, c=c, d=d")
Assuming you used function_params in the function declaration, this
is the parameters to put in the function call.
default_values_block: a dict with the default values to be passed as
the scope for the 'exec' statement.
For example:
def wrapper(%(function_params)s):
return original(%(calling_params)s)
i Nc @ s" d t ˆ ƒ } | ˆ | <d | S( Ns __default_%dt =( t len( t valuet default_name( t
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c B@ s‡ d } e | ƒ \ } } } i | j d 6| d 6| d 6} | | } e | ƒ } | | d <| | U| d } | j | _ | j | _ | S( s Decorate unbound to take out and release a read lock.
This decorator can be applied to methods of any class with lock_read() and
unlock() methods.
Typical usage:
class Branch(...):
@needs_read_lock
def branch_method(self, ...):
stuff
sÁ def %(name)s_read_locked(%(params)s):
self.lock_read()
try:
result = unbound(%(passed_params)s)
except:
import sys
exc_info = sys.exc_info()
try:
self.unlock()
finally:
try:
raise exc_info[0], exc_info[1], exc_info[2]
finally:
del exc_info
else:
self.unlock()
return result
read_locked = %(name)s_read_locked
t namet paramst
passed_paramst unboundt read_locked( R t __name__t dictt __doc__( R t templateR R R
t variablest func_deft scopeR! ( ( s5 /usr/lib/python2.7/dist-packages/bzrlib/decorators.pyt _pretty_needs_read_lockP s )
c @ s+ ‡ f d † } ˆ j | _ ˆ j | _ | S( s Decorate unbound to take out and release a read lock.
This decorator can be applied to methods of any class with lock_read() and
unlock() methods.
Typical usage:
class Branch(...):
@needs_read_lock
def branch_method(self, ...):
stuff
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c B@ s‡ d } e | ƒ \ } } } i | j d 6| d 6| d 6} | | } e | ƒ } | | d <| | U| d } | j | _ | j | _ | S( s6 Decorate unbound to take out and release a write lock.sÅ def %(name)s_write_locked(%(params)s):
self.lock_write()
try:
result = unbound(%(passed_params)s)
except:
import sys
exc_info = sys.exc_info()
try:
self.unlock()
finally:
try:
raise exc_info[0], exc_info[1], exc_info[2]
finally:
del exc_info
else:
self.unlock()
return result
write_locked = %(name)s_write_locked
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( R$ R" ( R R2 ( ( R s5 /usr/lib/python2.7/dist-packages/bzrlib/decorators.pyt _fast_needs_write_lockÕ s c @ s ‡ f d † } | S( s Make a decorator that will only allow the given error classes to be
raised. All other errors will be logged and then discarded.
Typical use is something like::
@only_raises(LockNotHeld, LockBroken)
def unlock(self):
# etc
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r' ‚ n t j d ƒ t j ƒ n Xd S( Ns Error suppressed by only_raises:( R t muttert log_exception_quietly( R R/ ( t errorsR ( s5 /usr/lib/python2.7/dist-packages/bzrlib/decorators.pyt wrapped÷ s
( R$ R" ( R R9 ( R8 ( R s5 /usr/lib/python2.7/dist-packages/bzrlib/decorators.pyt decoratorö s ( ( R8 R: ( ( R8 s5 /usr/lib/python2.7/dist-packages/bzrlib/decorators.pyt only_raisesì s
c C@ s t a t a d S( sÆ Change the default decorators to be fast loading ones.
The alternative is to have decorators that do more work to produce
nice-looking decorated functions, but this slows startup time.
N( R1 R R5 R ( ( ( s5 /usr/lib/python2.7/dist-packages/bzrlib/decorators.pyR s c C@ s t a t a d S( s0 Change the default decorators to be pretty ones.N( R) R R3 R ( ( ( s5 /usr/lib/python2.7/dist-packages/bzrlib/decorators.pyR s c C@ sC t | t ƒ r | } t | ƒ S| } d | j } t | | ƒ Sd S( s2 A decorator for methods that makes them properties with their return
value cached.
The value is cached on the instance, using the attribute name provided.
If you don't provide a name, the mangled name of the property is used.
>>> class CachedPropertyTest(object):
...
... @cachedproperty('_foo_cache')
... def foo(self):
... print 'foo computed'
... return 23
...
... @cachedproperty
... def bar(self):
... print 'bar computed'
... return 69
>>> cpt = CachedPropertyTest()
>>> getattr(cpt, '_foo_cache', None) is None
True
>>> cpt.foo
foo computed
23
>>> cpt.foo
23
>>> cpt._foo_cache
23
>>> cpt.bar
bar computed
69
>>> cpt._bar_cached_value
69
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Copyright © 2017 || Recoded By Mr.Bumblebee