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One of the things I'm really liking about ruby during my python to ruby conversion is that it handles the visitor pattern for me.

Half the Java code I ever wrote was probably visitor pattern cruft. Ruby largely just handles it all for me.




What are you doing in ruby that you weren't in python?

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I can write methods that take blocks.

Sure I can do the same thing in python, but I either have to write a lambda that limits me to a single line or write a one-off named method. The latter being much less clear than do ... end.

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"visit_foo" as a nested function definition, immediately before it's used in a function call, is not particularly unclear.

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