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<abws>
def test (**options);end; test({ :name => 'bob' }) gives ":1:in `test': wrong number of arguments (given 1, expected 0) (ArgumentError)". How comes ?
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<abws>
it is with ruby 3.0.3 and git master
<abws>
this was on armhf. On an x86_64 with ruby 2.7.4p191 all is fine
<adam12>
abws: Ruby 3 changed keyword arg handling.
<abws>
if I replace "test(options)" by "test(**{ :name => 'bob' })" with ruby3.0 the issue is fixed but in my real world case I cannot (a "super" call is interleaved and I do not see how to apply "**" to its argument
<abws>
adam12: do you have a pointer ? I found that adding "**" to the argument helps for simple case but fot the chaining "method > super > method" I am at loss
<adam12>
abws: Ruby < 3 would implicitly destructure a Hash into keyword arguments if it was the last parameter to a method call. Ruby 3 broke that. If you called with ruby -W it would probably warn for you on 2.7
<adam12>
abws: test(name: "bob")
<adam12>
or def test(options) if you always want a Hash.
<abws>
adam12: but isn't it the opposite (test(keyword: value) is not supported but test({keyword: value}) is unchanged ?
<abws>
I believe I do not understand the double splat operator
<adam12>
abws: ** will capture keyword args in the method definition.
<abws>
I though it flattened only when applied to the hash , not when before a parameter in a function definition
<adam12>
It acts as a catch all for keyword arguments in the method definition.
<adam12>
When called on a Hash it will call to_hash on it (ie. on the right side of an assignment).
<abws>
adam12: I am still lost, even if I understand I misunderstood something. Do you have an example migration from double splat in parameter construct to ruby3.0 ?
<abws>
indeed ruby2.7 -W tells about the deprecation
<adam12>
Signing off for the night. Good luck.
<abws>
thanks a lot
<abws>
hum that is the document I already read but misunderstood. Well :-)
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<abws>
ah got it but I am still stuck because I cannot apply the recommandation "# If you want to keep the behavior in Ruby 3.0, use double splat\n foo(**h) #=> 42"
<abws>
ie "call(**hash) > super > def test(**parameter)" triggers the wrong number of argument at the "super" stage (because the double splat operator have to be set at each stage and on super I cannot ?)
<weaksauce>
abws can you gist out a more complete example instead of in irc?
<weaksauce>
too hard to follow the shortcuts
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<abws>
l.14 I already added the double sprat operator to destructure the hash into keyword arguments (I understand this sentence now :-) but ruby choke on "super" l.29
<weaksauce>
abws why not call it explicitly
<weaksauce>
something like gitolite_config, repository, context, options = *args
<weaksauce>
super gitolite_config, repository, context, **options
<abws>
nice, a little more boilerplate but indeed smart
<weaksauce>
yeah unfortunately it's not possible to avoid i guess since the calling conventions have changed
<weaksauce>
i guess if you had to do a ton of them you could conceivably fix it with some kind of mixin or something but that opens up a new problem and a lot of tech debt
<weaksauce>
the other option is to add **kwargs to the initialize method abws
<weaksauce>
def initialize(*args, **kwargs)
<weaksauce>
that'll allow you to call super directly
<weaksauce>
and **{} is a smell
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<abws>
weaksauce: thank you !
<weaksauce>
no problem
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<leah2>
just use def random_word
<leah2>
also self. is not needed to call in line 5
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<comet23>
how would i initialize a new hash where keys are the room names from the hash arg and values are ClassName instances with the specified capacities
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<leftylink>
actually I think Enumerable#to_h, with a block, would be useful here
<leftylink>
Enumerable just has to much bang for the buck in terms of what it can do
<leftylink>
a high-value thing to be thinking about
<weaksauce>
yeah one of the best parts of ruby is the rich enumerable lib
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<ox1eef>
quite sad to see how yard treats "extend", it makes practically no distinction with "include", so reading the docs one gets the idea the methods are included, rather than extended.
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<weaksauce>
ox1eef have an example doc of that?
<ox1eef>
https://0x1eef.github.io/x/ryo.rb/Ryo.html - scroll to, "Methods included by Reflect", "Methods included by Keywords" - and where the methods appear, under "instance methods"
<ox1eef>
they're not included but extended, and not instance methods but singleton methods on Ryo
<weaksauce>
ah
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<weaksauce>
they do have extensions made for yard i wonder if there's one for it
<ox1eef>
maybe that can be improved with a template tweak alone.
<weaksauce>
perhaps
<ox1eef>
it's weird because on classes ive defined singleton methods, there is a class method summary and it looks correct.
<ox1eef>
Ryo is a module, not a class, maybe that's where the fault is