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* proc.c: Complete rdoc of Proc#arity regarding keyword arguments.

  See #8072 and #9299.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45238 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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commit 47d6a7ee1c87697d650f402fc0899e7407fc3e10 1 parent 9b7b441
Marc-André Lafortune marcandre authored
Showing with 6 additions and 0 deletions.
  1. +6 −0 proc.c
6 proc.c
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@@ -846,6 +846,8 @@ rb_proc_call_with_block(VALUE self, int argc, const VALUE *argv, VALUE pass_proc
* number of mandatory arguments, with the exception for blocks that
* are not lambdas and have only a finite number of optional arguments;
* in this latter case, returns n.
+ * Keywords arguments will considered as a single additional argument,
+ * that argument being mandatory if any keyword argument is mandatory.
* A <code>proc</code> with no argument declarations
* is the same a block declaring <code>||</code> as its arguments.
*
@@ -857,6 +859,8 @@ rb_proc_call_with_block(VALUE self, int argc, const VALUE *argv, VALUE pass_proc
* proc { |*a| }.arity #=> -1
* proc { |a, *b| }.arity #=> -2
* proc { |a, *b, c| }.arity #=> -3
+ * proc { |x:, y:, z:0| }.arity #=> 1
+ * proc { |*a, x:, y:0| }.arity #=> -2
*
* proc { |x=0| }.arity #=> 0
* lambda { |x=0| }.arity #=> -1
@@ -868,6 +872,8 @@ rb_proc_call_with_block(VALUE self, int argc, const VALUE *argv, VALUE pass_proc
* lambda { |x, y=0| }.arity #=> -2
* proc { |(x, y), z=0| }.arity #=> 1
* lambda { |(x, y), z=0| }.arity #=> -2
+ * proc { |a, x:0, y:0| }.arity #=> 1
+ * lambda { |a, x:0, y:0| }.arity #=> -2
*/
static VALUE
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