diff options
| author | Michele Simionato <michele.simionato@gmail.com> | 2015-07-22 08:50:57 +0200 |
|---|---|---|
| committer | Michele Simionato <michele.simionato@gmail.com> | 2015-07-22 08:50:57 +0200 |
| commit | bfe11019156796384516d6038f7a66a87cca7e35 (patch) | |
| tree | 25898218cf34900d74fa3b480880739d785296b7 /documentation.pdf | |
| parent | 4b28eea14c0ab65e447cf2955c26bc9a8e5fd11b (diff) | |
| download | python-decorator-git-bfe11019156796384516d6038f7a66a87cca7e35.tar.gz | |
More docs and tests for the case of virtual ancestors
Diffstat (limited to 'documentation.pdf')
| -rw-r--r-- | documentation.pdf | 813 |
1 files changed, 512 insertions, 301 deletions
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-BT 1 0 0 1 0 3.5 Tm 21 TL /F2 17.5 Tf 0 0 0 rg (Generics and Abstract Base Classes) Tj T* ET
+BT 1 0 0 1 0 3.5 Tm 21 TL /F2 17.5 Tf 0 0 0 rg (Generic functions and virtual ancestors) Tj T* ET
Q
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q
1 0 0 1 62.69291 556.8236 cm
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0 0 0 rg
-BT 1 0 0 1 0 14 Tm /F1 10 Tf 12 TL .840751 Tw (Generic functions implementations in Python are complicated by the existence of "virtual ancestors", i.e.) Tj T* 0 Tw (superclasses which are not in the class hierarchy. Consider for instance this class:) Tj T* ET
+BT 1 0 0 1 0 14 Tm /F1 10 Tf 12 TL 1.225366 Tw (Generic function implementations in Python are complicated by the existence of "virtual ancestors", i.e.) Tj T* 0 Tw (superclasses which are not in the class hierarchy. Consider for instance this class:) Tj T* ET
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@@ -6565,13 +6569,9 @@ n 36 24 60 12 re f* .960784 .960784 .862745 rg
n 96 24 6 12 re f*
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-n 168 24 6 12 re f*
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-n 174 24 30 12 re f*
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-n 204 24 12 12 re f*
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n 24 12 18 12 re f*
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@@ -6586,7 +6586,7 @@ n 120 12 12 12 re f* n 48 0 36 12 re f*
.960784 .960784 .862745 rg
n 90 0 6 12 re f*
-BT 1 0 0 1 0 26 Tm 12 TL /F5 10 Tf 0 .501961 0 rg (class) Tj /F3 10 Tf 0 0 0 rg ( ) Tj /F5 10 Tf 0 0 1 rg (WithLength) Tj /F3 10 Tf 0 0 0 rg (\() Tj 0 0 0 rg (collections) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (Sized) Tj 0 0 0 rg (\):) Tj 0 0 0 rg T* ( ) Tj /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (__len__) Tj 0 0 0 rg (\() Tj 0 .501961 0 rg (self) Tj 0 0 0 rg (\):) Tj 0 0 0 rg T* ( ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj .4 .4 .4 rg (0) Tj T* ET
+BT 1 0 0 1 0 26 Tm 12 TL /F5 10 Tf 0 .501961 0 rg (class) Tj /F3 10 Tf 0 0 0 rg ( ) Tj /F5 10 Tf 0 0 1 rg (WithLength) Tj /F3 10 Tf 0 0 0 rg (\() Tj 0 .501961 0 rg (object) Tj 0 0 0 rg (\):) Tj 0 0 0 rg T* ( ) Tj /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (__len__) Tj 0 0 0 rg (\() Tj 0 .501961 0 rg (self) Tj 0 0 0 rg (\):) Tj 0 0 0 rg T* ( ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj .4 .4 .4 rg (0) Tj T* ET
Q
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@@ -6595,7 +6595,7 @@ Q q
1 0 0 1 62.69291 467.6236 cm
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-BT 1 0 0 1 0 14 Tm .772765 Tw 12 TL /F1 10 Tf 0 0 0 rg (This class defines a ) Tj /F3 10 Tf 0 0 0 rg (__len__ ) Tj /F1 10 Tf 0 0 0 rg (method and as such is considered to be a subclass of the abstract base) Tj T* 0 Tw (class ) Tj /F3 10 Tf 0 0 0 rg (Sized) Tj /F1 10 Tf 0 0 0 rg (:) Tj T* ET
+BT 1 0 0 1 0 14 Tm .772765 Tw 12 TL /F1 10 Tf 0 0 0 rg (This class defines a ) Tj /F3 10 Tf 0 0 0 rg (__len__ ) Tj /F1 10 Tf 0 0 0 rg (method and as such is considered to be a subclass of the abstract base) Tj T* 0 Tw (class ) Tj /F3 10 Tf 0 0 0 rg (collections.Sized) Tj /F1 10 Tf 0 0 0 rg (:) Tj T* ET
Q
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q
@@ -6645,7 +6645,7 @@ Q q
1 0 0 1 62.69291 378.4236 cm
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-BT 1 0 0 1 0 26 Tm 2.180888 Tw 12 TL /F1 10 Tf 0 0 0 rg (However, ) Tj /F3 10 Tf 0 0 0 rg (collections.Sized ) Tj /F1 10 Tf 0 0 0 rg (is not an ancestor of ) Tj /F3 10 Tf 0 0 0 rg (WithLenght) Tj /F1 10 Tf 0 0 0 rg (. Any implementation of generic) Tj T* 0 Tw 1.570651 Tw (functions, even with single dispatch, must go through some contorsion to take into account the virtual) Tj T* 0 Tw (ancestors.) Tj T* ET
+BT 1 0 0 1 0 26 Tm 2.180888 Tw 12 TL /F1 10 Tf 0 0 0 rg (However, ) Tj /F3 10 Tf 0 0 0 rg (collections.Sized ) Tj /F1 10 Tf 0 0 0 rg (is not an ancestor of ) Tj /F3 10 Tf 0 0 0 rg (WithLength) Tj /F1 10 Tf 0 0 0 rg (. Any implementation of generic) Tj T* 0 Tw 1.570651 Tw (functions, even with single dispatch, must go through some contorsion to take into account the virtual) Tj T* 0 Tw (ancestors.) Tj T* ET
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@@ -6711,7 +6711,7 @@ q 1 0 0 1 62.69291 283.2236 cm
q
0 0 0 rg
-BT 1 0 0 1 0 2 Tm /F1 10 Tf 12 TL (implemented on all classes with a lenght) Tj T* ET
+BT 1 0 0 1 0 2 Tm /F1 10 Tf 12 TL (implemented on all classes with a length) Tj T* ET
Q
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q
@@ -6817,18 +6817,82 @@ Q q
1 0 0 1 62.69291 86.82362 cm
q
-BT 1 0 0 1 0 38 Tm 1.208555 Tw 12 TL /F1 10 Tf 0 0 0 rg (The implementation of generic functions in the decorator module is marked as experimental because it) Tj T* 0 Tw 9.424147 Tw (may change in the future. Simplicity was preferred over consistency with the way) Tj T* 0 Tw 4.854976 Tw /F3 10 Tf 0 0 0 rg (functools.singledispatch ) Tj /F1 10 Tf 0 0 0 rg (works in the standard library. For instance, suppose we define) Tj T* 0 Tw /F3 10 Tf 0 0 0 rg (WithLength ) Tj /F1 10 Tf 0 0 0 rg (as a virtual subclass of ) Tj /F3 10 Tf 0 0 0 rg (collections.Set) Tj /F1 10 Tf 0 0 0 rg (:) Tj T* ET
+BT 1 0 0 1 0 38 Tm .646651 Tw 12 TL /F1 10 Tf 0 0 0 rg (The implementation of generic functions in the decorator module is still experimental. In this initial phase) Tj T* 0 Tw 2.659069 Tw (implicity was preferred over consistency with the way ) Tj /F3 10 Tf 0 0 0 rg (functools.singledispatch ) Tj /F1 10 Tf 0 0 0 rg (works in the) Tj T* 0 Tw .571235 Tw (standard library. So there some subtle differences in special case. I will only show an example. Suppose) Tj T* 0 Tw (with are using a third party set-like class like the following:) Tj T* ET
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1 0 0 1 0 0 cm BT /F1 12 Tf 14.4 TL ET
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+BT 1 0 0 1 0 50 Tm 12 TL /F5 10 Tf 0 .501961 0 rg (class) Tj /F3 10 Tf 0 0 0 rg ( ) Tj /F5 10 Tf 0 0 1 rg (SomeSet) Tj /F3 10 Tf 0 0 0 rg (\() Tj 0 0 0 rg (collections) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (Sized) Tj 0 0 0 rg (\):) Tj 0 0 0 rg T* ( ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# methods that make SomeSet set-like) Tj /F3 10 Tf 0 0 0 rg T* ( ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# not shown ...) Tj /F3 10 Tf 0 0 0 rg T* ( ) Tj /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (__len__) Tj 0 0 0 rg (\() Tj 0 .501961 0 rg (self) Tj 0 0 0 rg (\):) Tj 0 0 0 rg T* ( ) Tj /F5 10 Tf 0 .501961 0 rg (return) Tj /F3 10 Tf 0 0 0 rg ( ) Tj .4 .4 .4 rg (0) Tj T* ET
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+BT 1 0 0 1 0 14 Tm 1.042651 Tw 12 TL /F1 10 Tf 0 0 0 rg (Here the author of ) Tj /F3 10 Tf 0 0 0 rg (SomeSet ) Tj /F1 10 Tf 0 0 0 rg (made a mistake by not inheriting from ) Tj /F3 10 Tf 0 0 0 rg (collections.Set) Tj /F1 10 Tf 0 0 0 rg (, but only from) Tj T* 0 Tw /F3 10 Tf 0 0 0 rg (collections.Sized) Tj /F1 10 Tf 0 0 0 rg (.) Tj T* ET
+Q
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+BT 1 0 0 1 0 14 Tm 1.797485 Tw 12 TL /F1 10 Tf 0 0 0 rg (This is not a problem since we can register ) Tj /F4 10 Tf (a posteriori) Tj /F1 10 Tf ( ) Tj /F3 10 Tf 0 0 0 rg (collections.Set ) Tj /F1 10 Tf 0 0 0 rg (as a virtual ancestor of) Tj T* 0 Tw /F3 10 Tf 0 0 0 rg (SomeSet ) Tj /F1 10 Tf 0 0 0 rg (\(in general any instance of ) Tj /F3 10 Tf 0 0 0 rg (abc.ABCMeta ) Tj /F1 10 Tf 0 0 0 rg (can be registered to work as a virtual ancestor\):) Tj T* ET
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@@ -6864,25 +6928,25 @@ n 144 0 48 12 re f* .960784 .960784 .862745 rg
n 192 0 6 12 re f*
.960784 .960784 .862745 rg
-n 198 0 60 12 re f*
+n 198 0 42 12 re f*
.960784 .960784 .862745 rg
-n 258 0 6 12 re f*
+n 240 0 6 12 re f*
.960784 .960784 .862745 rg
-n 276 0 174 12 re f*
-BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf .4 .4 .4 rg (>) Tj (>) Tj (>) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (_) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (collections) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (Set) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (register) Tj 0 0 0 rg (\() Tj 0 0 0 rg (WithLength) Tj 0 0 0 rg (\)) Tj 0 0 0 rg ( ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# issubclass\(WithLength, Set\)) Tj T* ET
+n 258 0 156 12 re f*
+BT 1 0 0 1 0 2 Tm 12 TL /F3 10 Tf .4 .4 .4 rg (>) Tj (>) Tj (>) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (_) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (collections) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (Set) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (register) Tj 0 0 0 rg (\() Tj 0 0 0 rg (SomeSet) Tj 0 0 0 rg (\)) Tj 0 0 0 rg ( ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# issubclass\(SomeSet, Set\)) Tj T* ET
Q
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+1 0 0 1 62.69291 576.6236 cm
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BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (Now, let us define an implementation of ) Tj /F3 10 Tf 0 0 0 rg (get_length ) Tj /F1 10 Tf 0 0 0 rg (specific to set:) Tj T* ET
Q
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@@ -6938,13 +7002,13 @@ Q Q
Q
q
-1 0 0 1 62.69291 630.6236 cm
+1 0 0 1 62.69291 487.4236 cm
q
-BT 1 0 0 1 0 14 Tm 2.462651 Tw 12 TL /F1 10 Tf 0 0 0 rg (The current implementation first check in the MRO and then look for abstract bases classes; since) Tj T* 0 Tw /F3 10 Tf 0 0 0 rg (WithLength ) Tj /F1 10 Tf 0 0 0 rg (inherits directly from ) Tj /F3 10 Tf 0 0 0 rg (collections.Sized ) Tj /F1 10 Tf 0 0 0 rg (that implementation is found first:) Tj T* ET
+BT 1 0 0 1 0 14 Tm 1.152651 Tw 12 TL /F1 10 Tf 0 0 0 rg (The current implementation first check in the MRO and then look for virtual ancestors; since ) Tj /F3 10 Tf 0 0 0 rg (SomeSet) Tj T* 0 Tw /F1 10 Tf 0 0 0 rg (inherits directly from ) Tj /F3 10 Tf 0 0 0 rg (collections.Sized ) Tj /F1 10 Tf 0 0 0 rg (that implementation is found first:) Tj T* ET
Q
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@@ -6968,44 +7032,199 @@ n 24 12 60 12 re f* .960784 .960784 .862745 rg
n 84 12 6 12 re f*
.960784 .960784 .862745 rg
-n 90 12 60 12 re f*
+n 90 12 42 12 re f*
.960784 .960784 .862745 rg
-n 150 12 18 12 re f*
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.960784 .960784 .862745 rg
n 0 0 6 12 re f*
-BT 1 0 0 1 0 14 Tm 12 TL /F3 10 Tf .4 .4 .4 rg (>) Tj (>) Tj (>) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (get_length) Tj 0 0 0 rg (\() Tj 0 0 0 rg (WithLength) Tj 0 0 0 rg (\(\)\)) Tj 0 0 0 rg T* .4 .4 .4 rg (0) Tj T* ET
+BT 1 0 0 1 0 14 Tm 12 TL /F3 10 Tf .4 .4 .4 rg (>) Tj (>) Tj (>) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (get_length) Tj 0 0 0 rg (\() Tj 0 0 0 rg (SomeSet) Tj 0 0 0 rg (\(\)\)) Tj 0 0 0 rg T* .4 .4 .4 rg (0) Tj T* ET
Q
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+1 0 0 1 62.69291 362.2236 cm
q
-BT 1 0 0 1 0 26 Tm 2.257752 Tw 12 TL /F1 10 Tf 0 0 0 rg (Generic functions implemented via ) Tj /F3 10 Tf 0 0 0 rg (functools.singledispatch ) Tj /F1 10 Tf 0 0 0 rg (use a more sophisticated lookup) Tj T* 0 Tw 1.095542 Tw (algorithm; in particular they are able to discern that a ) Tj /F3 10 Tf 0 0 0 rg (Set ) Tj /F1 10 Tf 0 0 0 rg (is a ) Tj /F3 10 Tf 0 0 0 rg (Sized ) Tj /F1 10 Tf 0 0 0 rg (object, so the most specialized) Tj T* 0 Tw (implementation is the one for ) Tj /F3 10 Tf 0 0 0 rg (Set ) Tj /F1 10 Tf 0 0 0 rg (and the result should be 1, not 0.) Tj T* ET
+BT 1 0 0 1 0 62 Tm 2.257752 Tw 12 TL /F1 10 Tf 0 0 0 rg (Generic functions implemented via ) Tj /F3 10 Tf 0 0 0 rg (functools.singledispatch ) Tj /F1 10 Tf 0 0 0 rg (use a more sophisticated lookup) Tj T* 0 Tw .632209 Tw (algorithm; in particular they are able to discern that a ) Tj /F3 10 Tf 0 0 0 rg (Set ) Tj /F1 10 Tf 0 0 0 rg (is a ) Tj /F3 10 Tf 0 0 0 rg (Sized ) Tj /F1 10 Tf 0 0 0 rg (object, so the implementation for) Tj T* 0 Tw 10.16355 Tw /F3 10 Tf 0 0 0 rg (Set ) Tj /F1 10 Tf 0 0 0 rg (is taken and the result is 1, not 0. Also, the functions implemented via) Tj T* 0 Tw .927251 Tw /F3 10 Tf 0 0 0 rg (functools.singledispatch ) Tj /F1 10 Tf 0 0 0 rg (are smarter when there are conflicting implementations and are able to) Tj T* 0 Tw .844488 Tw (solve more potential conflicts. Just to have an idea of what I am talking about, here is a situation with a) Tj T* 0 Tw (conflict:) Tj T* ET
Q
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+1 0 0 1 62.69291 245.0236 cm
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-BT 1 0 0 1 0 14 Tm 2.653735 Tw 12 TL /F1 10 Tf 0 0 0 rg (Finally let me notice that the current implementation does not use any cache, whereas the one in) Tj T* 0 Tw /F3 10 Tf 0 0 0 rg (singledispatch ) Tj /F1 10 Tf 0 0 0 rg (has a cache.) Tj T* ET
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+BT 1 0 0 1 0 38 Tm 9.280976 Tw 12 TL /F1 10 Tf 0 0 0 rg (Since ) Tj /F3 10 Tf 0 0 0 rg (WithLength ) Tj /F1 10 Tf 0 0 0 rg (is both a \(virtual\) subclass of ) Tj /F3 10 Tf 0 0 0 rg (collections.Iterable ) Tj /F1 10 Tf 0 0 0 rg (and of) Tj T* 0 Tw .08998 Tw /F3 10 Tf 0 0 0 rg (collections.Sized) Tj /F1 10 Tf 0 0 0 rg (, it is impossible to decide which implementation should be taken. Consistently with) Tj T* 0 Tw .488314 Tw (the ) Tj /F4 10 Tf (refuse the temptation to guess ) Tj /F1 10 Tf (philosophy, an error is raised. ) Tj /F3 10 Tf 0 0 0 rg (functools.singledispatch ) Tj /F1 10 Tf 0 0 0 rg (works) Tj T* 0 Tw (exactly the same in this case.) Tj T* ET
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BT 1 0 0 1 0 2 Tm 12 TL /F1 10 Tf 0 0 0 rg (On my laptop, using the ) Tj /F3 10 Tf 0 0 0 rg (do_nothing ) Tj /F1 10 Tf 0 0 0 rg (decorator instead of the plain function is five times slower:) Tj T* ET
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BT 1 0 0 1 0 26 Tm 1.25832 Tw 12 TL /F1 10 Tf 0 0 0 rg (It should be noted that a real life function would probably do something more useful than ) Tj /F3 10 Tf 0 0 0 rg (f ) Tj /F1 10 Tf 0 0 0 rg (here, and) Tj T* 0 Tw .91811 Tw (therefore in real life the performance penalty could be completely negligible. As always, the only way to) Tj T* 0 Tw (know if there is a penalty in your specific use case is to measure it.) Tj T* ET
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BT 1 0 0 1 0 14 Tm /F1 10 Tf 12 TL .867984 Tw (You should be aware that decorators will make your tracebacks longer and more difficult to understand.) Tj T* 0 Tw (Consider this example:) Tj T* ET
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BT 1 0 0 1 0 14 Tm .583318 Tw 12 TL /F1 10 Tf 0 0 0 rg (Calling ) Tj /F3 10 Tf 0 0 0 rg (f\(\) ) Tj /F1 10 Tf 0 0 0 rg (will give you a ) Tj /F3 10 Tf 0 0 0 rg (ZeroDivisionError) Tj /F1 10 Tf 0 0 0 rg (, but since the function is decorated the traceback will) Tj T* 0 Tw (be longer:) Tj T* ET
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BT 1 0 0 1 0 50 Tm 1.05528 Tw 12 TL /F1 10 Tf 0 0 0 rg (You see here the inner call to the decorator ) Tj /F3 10 Tf 0 0 0 rg (trace) Tj /F1 10 Tf 0 0 0 rg (, which calls ) Tj /F3 10 Tf 0 0 0 rg (f\(*args,) Tj ( ) Tj (**kw\)) Tj /F1 10 Tf 0 0 0 rg (, and a reference to) Tj T* 0 Tw .076457 Tw /F3 10 Tf 0 0 0 rg (File) Tj ( ) Tj (") Tj (<) Tj (string) Tj (>) Tj (",) Tj ( ) Tj (line) Tj ( ) Tj (2,) Tj ( ) Tj (in) Tj ( ) Tj (f) Tj /F1 10 Tf 0 0 0 rg (. This latter reference is due to the fact that internally the decorator) Tj T* 0 Tw 2.053318 Tw (module uses ) Tj /F3 10 Tf 0 0 0 rg (exec ) Tj /F1 10 Tf 0 0 0 rg (to generate the decorated function. Notice that ) Tj /F3 10 Tf 0 0 0 rg (exec ) Tj /F1 10 Tf 0 0 0 rg (is ) Tj /F4 10 Tf (not ) Tj /F1 10 Tf (responsibile for the) Tj T* 0 Tw 1.507485 Tw (performance penalty, since is the called ) Tj /F4 10 Tf (only once ) Tj /F1 10 Tf (at function decoration time, and not every time the) Tj T* 0 Tw (decorated function is called.) Tj T* ET
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BT 1 0 0 1 0 26 Tm 1.043828 Tw 12 TL /F1 10 Tf 0 0 0 rg (In the present implementation, decorators generated by ) Tj /F3 10 Tf 0 0 0 rg (decorator ) Tj /F1 10 Tf 0 0 0 rg (can only be used on user-defined) Tj T* 0 Tw .152485 Tw (Python functions or methods, not on generic callable objects, nor on built-in functions, due to limitations of) Tj T* 0 Tw (the ) Tj /F3 10 Tf 0 0 0 rg (inspect ) Tj /F1 10 Tf 0 0 0 rg (module in the standard library, especially for Python 2.X.) Tj T* ET
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BT 1 0 0 1 0 14 Tm .785777 Tw 12 TL /F1 10 Tf 0 0 0 rg (There is a restriction on the names of the arguments: for instance, if try to call an argument ) Tj /F3 10 Tf 0 0 0 rg (_call_ ) Tj /F1 10 Tf 0 0 0 rg (or) Tj T* 0 Tw /F3 10 Tf 0 0 0 rg (_func_ ) Tj /F1 10 Tf 0 0 0 rg (you will get a ) Tj /F3 10 Tf 0 0 0 rg (NameError) Tj /F1 10 Tf 0 0 0 rg (:) Tj T* ET
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BT 1 0 0 1 0 14 Tm /F1 10 Tf 12 TL 1.720651 Tw (Finally, the implementation is such that the decorated function makes a \(shallow\) copy of the original) Tj T* 0 Tw (function dictionary:) Tj T* ET
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+BT 1 0 0 1 0 122 Tm 12 TL /F3 10 Tf .4 .4 .4 rg (>) Tj (>) Tj (>) Tj 0 0 0 rg ( ) Tj /F5 10 Tf 0 .501961 0 rg (def) Tj /F3 10 Tf 0 0 0 rg ( ) Tj 0 0 1 rg (f) Tj 0 0 0 rg (\(\):) Tj 0 0 0 rg ( ) Tj /F5 10 Tf 0 .501961 0 rg (pass) Tj /F3 10 Tf 0 0 0 rg ( ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# the original function) Tj /F3 10 Tf 0 0 0 rg T* .4 .4 .4 rg (>) Tj (>) Tj (>) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (attr1) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj .729412 .129412 .129412 rg ("something") Tj 0 0 0 rg ( ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# setting an attribute) Tj /F3 10 Tf 0 0 0 rg T* .4 .4 .4 rg (>) Tj (>) Tj (>) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (attr2) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj .729412 .129412 .129412 rg ("something else") Tj 0 0 0 rg ( ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# setting another attribute) Tj /F3 10 Tf 0 0 0 rg T* T* .4 .4 .4 rg (>) Tj (>) Tj (>) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (traced_f) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (trace) Tj 0 0 0 rg (\() Tj 0 0 0 rg (f) Tj 0 0 0 rg (\)) Tj 0 0 0 rg ( ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# the decorated function) Tj /F3 10 Tf 0 0 0 rg T* T* .4 .4 .4 rg (>) Tj (>) Tj (>) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (traced_f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (attr1) Tj 0 0 0 rg T* .729412 .129412 .129412 rg ('something') Tj 0 0 0 rg T* .4 .4 .4 rg (>) Tj (>) Tj (>) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (traced_f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (attr2) Tj 0 0 0 rg ( ) Tj .4 .4 .4 rg (=) Tj 0 0 0 rg ( ) Tj .729412 .129412 .129412 rg ("something different") Tj 0 0 0 rg ( ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# setting attr) Tj /F3 10 Tf 0 0 0 rg T* .4 .4 .4 rg (>) Tj (>) Tj (>) Tj 0 0 0 rg ( ) Tj 0 0 0 rg (f) Tj .4 .4 .4 rg (.) Tj 0 0 0 rg (attr2) Tj 0 0 0 rg ( ) Tj /F6 10 Tf .25098 .501961 .501961 rg (# the original attribute did not change) Tj /F3 10 Tf 0 0 0 rg T* .729412 .129412 .129412 rg ('something else') Tj T* ET
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BT 1 0 0 1 0 2 Tm /F1 10 Tf 12 TL (Copyright \(c\) 2005-2015, Michele Simionato All rights reserved.) Tj T* ET
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