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Failed Conditions
Pull Request — master (#1152)
by Lasse
03:36
created

coalib.collecting.FunctionMetadata.from_function()   B

↳ Parent: coalib.collecting.FunctionMetadata

Complexity

Conditions 6

Size

Total Lines 54

Duplication

Lines 0
Ratio 0 %
Metric Value
cc 6
dl 0
loc 54
rs 7.852

How to fix   Long Method   

Long Method

Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.

For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.

Commonly applied refactorings include:

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class CircularDependencyError(Exception):
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    @classmethod
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    def for_bears(cls, bears):
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        """
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        Creates the CircularDependencyError with a helpful message about the
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        dependency.
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        """
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        bear_names = []
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        for bear in bears:

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            bear_names.append(bear.__name__)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        return cls("Circular dependency detected: " + " -> ".join(bear_names))

            


            
                                                                                                            
                            
            
                                    
            
            

                
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def _resolve(bears, resolved_bears, seen):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    for bear in bears:

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        if bear in resolved_bears:

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            continue

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        missing = bear.missing_dependencies(resolved_bears)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        if missing == []:

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            resolved_bears.append(bear)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            continue

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        if bear in seen:

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            seen.append(bear)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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            raise CircularDependencyError.for_bears(seen)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        seen.append(bear)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        resolved_bears = _resolve(missing, resolved_bears, seen)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        resolved_bears.append(bear)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        seen.remove(bear)  # Already resolved, no candidate for circular dep

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    return resolved_bears

            


            
                                                                                                            
                            
            
                                    
            
            

                
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def resolve(bears):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    """

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    Collects all dependencies of the given bears. This will also remove

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    duplicates.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    :param bears: The given bears. Will not be modified.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    :return:      The new list of bears, sorted so that it can be executed

            


            
                                                                                                            
                            
            
                                    
            
            

                
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                  sequentially without dependency issues.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    """

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    return _resolve(bears, [], [])

            


            
                                                                                                            
                            
            
                                    
            
            

                
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