107 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			Python
		
	
	
	
			
		
		
	
	
			107 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			Python
		
	
	
	
import py
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class DescPlaceholder(object):
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    pass
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class ClassPlaceholder(object):
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    pass
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class SerialisableClassDesc(object):
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    def __init__(self, original_desc):
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        self.is_degenerated = original_desc.is_degenerated
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        self.name = original_desc.name
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class PermaDocStorage(object):
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    """ Picklable version of docstorageaccessor
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    """
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    function_fields = ['source', 'signature', 'definition', 'callpoints',
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                       'local_changes', 'exceptions']
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    def __init__(self, dsa):
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        """ Initialise from original doc storage accessor
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        """
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        self.names = {}
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        self.module_info = dsa.get_module_info()
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        self.module_name = dsa.get_module_name()
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        self._save_functions(dsa)
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        self._save_classes(dsa)
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    def _save_functions(self, dsa):
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        names = dsa.get_function_names()
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        self.function_names = names
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        for name in names:
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            self._save_function(dsa, name)
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    def _save_function(self, dsa, name):
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        ph = DescPlaceholder()
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        ph.__doc__ = dsa.get_doc(name)
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        for field in self.function_fields:
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            setattr(ph, field, getattr(dsa, 'get_function_%s' % field)(name))
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        self.names[name] = ph
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        return ph
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    def _save_classes(self, dsa):
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        names = dsa.get_class_names()
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        self.class_names = names
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        for name in names:
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            ph = ClassPlaceholder()
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            ph.__doc__ = dsa.get_doc(name)
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            methods = dsa.get_class_methods(name)
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            ph.methods = methods
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            ph.base_classes = [SerialisableClassDesc(i) for i in
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                               dsa.get_possible_base_classes(name)]
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            for method in methods:
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                method_name = name + "." + method
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                mh = self._save_function(dsa, name + "." + method)
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                mh.origin = SerialisableClassDesc(dsa.get_method_origin(
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                    method_name))
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            self.names[name] = ph
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    def get_class_methods(self, name):
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        desc = self.names[name]
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        assert isinstance(desc, ClassPlaceholder)
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        return desc.methods
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    def get_doc(self, name):
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        return self.names[name].__doc__
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    def get_module_info(self):
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        return self.module_info
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    def get_module_name(self):
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        return self.module_name
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    def get_class_names(self):
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        return self.class_names
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    def get_function_names(self):
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        return self.function_names
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    def get_method_origin(self, name):
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        # returns a DESCRIPTION of a method origin, to make sure where we
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        # write it
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        return self.names[name].origin
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    def get_possible_base_classes(self, name):
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        # returns list of descs of base classes
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        return self.names[name].base_classes
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    # This are placeholders to provide something more reliable
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    def get_type_desc(self, _type):
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        return None
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    #def get_obj(self, name):
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    #    This is quite hairy, get rid of it soon
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    #    # returns a pyobj
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    #    pass
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for field in PermaDocStorage.function_fields:
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    d = {"field": field}
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    func_name = "get_function_%s" % (field, )
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    exec py.code.Source("""
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    def %s(self, name, field=field):
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        return getattr(self.names[name], field)
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""" % (func_name, )).compile() in d
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    setattr(PermaDocStorage, func_name, d[func_name])
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