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[DOC] Update Struct#new behavior with keyword_init: true

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Nobuyoshi Nakada 2022-09-09 18:58:07 +09:00
parent aff6534e32
commit cfe10e482e
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1 changed files with 4 additions and 3 deletions
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struct.c
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@ -471,8 +471,8 @@ rb_struct_define_under(VALUE outer, const char *name, ...)
*
* - May be anonymous, or may have the name given by +class_name+.
* - May have members as given by +member_names+.
* - May have initialization via ordinary arguments (the default)
* or via keyword arguments (if <tt>keyword_init: true</tt> is given).
* - May have initialization via ordinary arguments (unless
* <tt>keyword_init: true</tt> is given), or via keyword arguments
*
* The new subclass has its own method <tt>::new</tt>; thus:
*
@ -557,7 +557,7 @@ rb_struct_define_under(VALUE outer, const char *name, ...)
* By default, the arguments for initializing an instance of the new subclass
* are ordinary arguments (not keyword arguments).
* With optional keyword argument <tt>keyword_init: true</tt>,
* the new subclass is initialized with keyword arguments:
* the new subclass must be initialized with keyword arguments:
*
* # Without keyword_init: true.
* Foo = Struct.new('Foo', :foo, :bar)
@ -567,6 +567,7 @@ rb_struct_define_under(VALUE outer, const char *name, ...)
* Bar = Struct.new(:foo, :bar, keyword_init: true)
* Bar # => # => Bar(keyword_init: true)
* Bar.new(bar: 1, foo: 0) # => #<struct Bar foo=0, bar=1>
* Bar.new(0, 1) # Raises ArgumentError: wrong number of arguments
*
*/