[ruby-core:55037] [ruby-trunk - Bug #8418][Open] when all params are optional, named arg hash maps to the first available param

[ruby-core:55037] [ruby-trunk - Bug #8418][Open] when all params are optional, named arg hash maps to the first available param

[rits (First Last)]

Issue #8418 has been reported by rits (First Last).

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Bug #8418: when all params are optional, named arg hash maps to the first available param
https://bugs.ruby-lang.org/issues/8418

Author: rits (First Last)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 2.0.0p195 (2013-05-14 revision 40734) [i686-linux]
Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN


irb(main):028:0> def foo(arg = 1, options = {}); {arg: arg, options: options}; end; foo(a: 1)
=> {:arg=>{:a=>1}, :options=>{}}

since positional args can't follow the named hash, perhaps the named hash should map to the last possible param?


-- 
http://bugs.ruby-lang.org/

[ruby-core:55038] [ruby-trunk - Bug #8418] when all params are optional, named arg hash maps to the first available param

[rits (First Last)]

Issue #8418 has been updated by rits (First Last).


that would also make it correspond to the new syntax

irb(main):034:0> def foo(arg = 1, **options); {arg: arg, options: options}; end; foo(a: 1)
=> {:arg=>1, :options=>{:a=>1}}


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Bug #8418: when all params are optional, named arg hash maps to the first available param
https://bugs.ruby-lang.org/issues/8418#change-39390

Author: rits (First Last)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 2.0.0p195 (2013-05-14 revision 40734) [i686-linux]
Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN


irb(main):028:0> def foo(arg = 1, options = {}); {arg: arg, options: options}; end; foo(a: 1)
=> {:arg=>{:a=>1}, :options=>{}}

since positional args can't follow the named hash, perhaps the named hash should map to the last possible param?


-- 
http://bugs.ruby-lang.org/

[ruby-core:55040] [ruby-trunk - Bug #8418][Rejected] when all params are optional, named arg hash maps to the first available param

[nobu (Nobuyoshi Nakada)]

Issue #8418 has been updated by nobu (Nobuyoshi Nakada).

Status changed from Open to Rejected

That's the reason that keyword argument is introduced.
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Bug #8418: when all params are optional, named arg hash maps to the first available param
https://bugs.ruby-lang.org/issues/8418#change-39397

Author: rits (First Last)
Status: Rejected
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 2.0.0p195 (2013-05-14 revision 40734) [i686-linux]
Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN


irb(main):028:0> def foo(arg = 1, options = {}); {arg: arg, options: options}; end; foo(a: 1)
=> {:arg=>{:a=>1}, :options=>{}}

since positional args can't follow the named hash, perhaps the named hash should map to the last possible param?


-- 
http://bugs.ruby-lang.org/

[ruby-core:58551] [ruby-trunk - Bug #8418] when all params are optional, named arg hash maps to the first available param

[rits (First Last)]

Issue #8418 has been updated by rits (First Last).


but isn't it good to have correspondence between keyword args and keyword hash?

when keyword args are used explicitly at invocation (foo a: 1, foo **hash) but the method signature does not use keyword params, it seems natural to bind the resulting hash to the last possible param, not the first
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Bug #8418: when all params are optional, named arg hash maps to the first available param
https://bugs.ruby-lang.org/issues/8418#change-43130

Author: rits (First Last)
Status: Rejected
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 2.0.0p195 (2013-05-14 revision 40734) [i686-linux]
Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN


irb(main):028:0> def foo(arg = 1, options = {}); {arg: arg, options: options}; end; foo(a: 1)
=> {:arg=>{:a=>1}, :options=>{}}

since positional args can't follow the named hash, perhaps the named hash should map to the last possible param?


-- 
http://bugs.ruby-lang.org/