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#!/usr/bin/env python |
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# source: https://bitbucket.org/dkuhlman/generateds/src/default/gends_user_methods.py |
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import re |
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# |
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# You must include the following class definition at the top of |
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# your method specification file. |
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# |
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class MethodSpec(): |
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def __init__(self, name='', source='', class_names='', |
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class_names_compiled=None): |
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"""MethodSpec -- A specification of a method. |
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Member variables: |
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name -- The method name |
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source -- The source code for the method. Must be |
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indented to fit in a class definition. |
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class_names -- A regular expression that must match the |
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class names in which the method is to be inserted. |
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class_names_compiled -- The compiled class names. |
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generateDS.py will do this compile for you. |
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""" |
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self.name = name |
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self.source = source |
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if class_names is None: |
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self.class_names = ('.*', ) |
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else: |
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self.class_names = class_names |
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if class_names_compiled is None: |
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self.class_names_compiled = re.compile(self.class_names) |
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else: |
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self.class_names_compiled = class_names_compiled |
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def get_name(self): |
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return self.name |
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def set_name(self, name): |
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self.name = name |
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def get_source(self): |
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return self.source |
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def set_source(self, source): |
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self.source = source |
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def get_class_names(self): |
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return self.class_names |
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def set_class_names(self, class_names): |
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self.class_names = class_names |
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self.class_names_compiled = re.compile(class_names) |
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def get_class_names_compiled(self): |
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return self.class_names_compiled |
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def set_class_names_compiled(self, class_names_compiled): |
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self.class_names_compiled = class_names_compiled |
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def match_name(self, class_name): |
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"""Match against the name of the class currently being generated. |
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If this method returns True, the method will be inserted in |
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the generated class. |
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""" |
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if self.class_names_compiled.search(class_name): |
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return True |
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return False |
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def get_interpolated_source(self, values_dict): |
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"""Get the method source code, interpolating values from values_dict |
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into it. The source returned by this method is inserted into |
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the generated class. |
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""" |
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source = self.source % values_dict |
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return source |
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def show(self): |
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print('specification:') |
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print(' name: %s' % (self.name, )) |
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print(self.source) |
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print(' class_names: %s' % (self.class_names, )) |
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print(' names pat : %s' % (self.class_names_compiled.pattern, )) |
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# |
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# Provide one or more method specification such as the following. |
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# Notes: |
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# - Each generated class contains a class variable _member_data_items. |
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# This variable contains a list of instances of class _MemberSpec. |
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# See the definition of class _MemberSpec near the top of the |
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# generated superclass file and also section "User Methods" in |
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# the documentation, as well as the examples below. |
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# |
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# Replace the following method specifications with your own. |
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# |
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# Hash by memory adress/id() |
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# |
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hash_by_id = MethodSpec(name='hash', |
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source='''\ |
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def __hash__(self): |
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return hash(self.id) |
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''', |
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class_names=r'^.*$', |
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) |
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# |
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# Provide a list of your method specifications. |
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# This list of specifications must be named METHOD_SPECS. |
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# |
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METHOD_SPECS = ( |
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hash_by_id, |
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) |
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def test(): |
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for spec in METHOD_SPECS: |
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spec.show() |
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def main(): |
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test() |
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if __name__ == '__main__': |
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main() |
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