Package pypat :: Package behavioral :: Module visitor :: Class Visitor

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Class Visitor


Abstract Visitor class as part of the Visitor Design Pattern.

- External Usage documentation: U{https://github.com/tylerlaberge/PyPatterns/wiki/Behavioral-Pattern-Usage}
- External Visitor Design Pattern documentation: U{https://en.wikipedia.org/wiki/Visitor_pattern}

Instance Methods

visit(self, node, *args, **kwargs)
Visit the visitor with some object.

source code

generic_visit(self, node, *args, **kwargs)
The method to call if no methods were found for a visiting object.

source code

Method Details

visit(self, node, *args, **kwargs)

Visit the visitor with some object.

Parameters:

node - An object to call a visitor method with.
args - Arguments to go with the visitor method call.
kwargs - Keyword arguments to go with the visitor method call.

Returns:

The return value of the method that was called for visiting object.

generic_visit(self, node, *args, **kwargs)

The method to call if no methods were found for a visiting object.

Parameters:

node - An object to call a visitor method with.
args - Arguments to go with the visitor method call.
kwargs - Keyword arguments to go with the visitor method call.

Decorators:

@abstractmethod