馃寛 Need to dup default or else we have a troublesome alias #715
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tsontario
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tsontario
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Feb 27, 2020
lib/thor/parser/arguments.rb
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| rescue TypeError # Compatibility shim for un-dup-able Fixnum in Ruby < 2.4 | ||
| @assigns[argument.human_name] = argument.default | ||
| next |
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Before Ruby 2.4, attempting to dup a Fixnum results in a TypeError. From what I can see, that's the only accepted type for an option that could possibly throw, so for the sake of backward's compatibility I've had to add this in
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Ah, you're right we don't. I'll remove
Add test add handler continue loop after rescue remove byebug history spelling
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Following work on Shopify/krane#697, I discovered a subtle bug that is now causing issues with the repeatable flag feature.
If a default argument for a
Thor::Option | Thor::Argumentis provided, the option/argument constructor will call:This aliases, and does not create a copy of,
argument.defaultto@assigns[argument.human_name]. So now every time we update@assigns, we are also mutatingargument.default. This was never a problem before because, without a repeatable flag, we'd never encounter a failure mode.TODO