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Did You Know That (in Ruby): NameError::message

by carbonica —

While whipping up a tiny pure-Ruby implementation of the standard exception hierarchy for Laser, I came across a simply peculiar class: NameError::message.

Comments

Great finding. I’m especially amazed by the way you’re accessing the lower-case constant.

One way to pass arguments to ! without using send would be the following.

ErrMessage.!('method: %s receiver: %s', 25, :upcase)

schmidt —

Well that was foolish of my to glide past. Thanks for the reminder - updated!

carbonica —

What a peculiar feature; great post.

molf —

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