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Add details about parameters to define_method doc (#2165)

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When we use `define_method` and `define_singleton_method`,
if we supply block parameters to a block then a generated
method has corresponding parameters.
However, the doc doesn't mention it, so this info has been added.
This commit is contained in:
OKURA Masafumi 2019-08-16 02:21:17 +09:00 • committed by Takashi Kokubun
parent 409ce8c3da
commit 74726691ba
1 changed files with 12 additions and 2 deletions
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14
proc.c
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@ -1935,8 +1935,10 @@ rb_mod_public_instance_method(VALUE mod, VALUE vid)
*
* Defines an instance method in the receiver. The _method_
* parameter can be a +Proc+, a +Method+ or an +UnboundMethod+ object.
* If a block is specified, it is used as the method body. This block
* is evaluated using #instance_eval.
* If a block is specified, it is used as the method body.
* If a block or the _method_ parameter has parameters,
* they're used as method parameters.
* This block is evaluated using #instance_eval.
*
* class A
* def fred
@ -1946,6 +1948,7 @@ rb_mod_public_instance_method(VALUE mod, VALUE vid)
* self.class.define_method(name, &block)
* end
* define_method(:wilma) { puts "Charge it!" }
* define_method(:flint) {|name| puts "I'm #{name}!"}
* end
* class B < A
* define_method(:barney, instance_method(:fred))
@ -1953,6 +1956,7 @@ rb_mod_public_instance_method(VALUE mod, VALUE vid)
* a = B.new
* a.barney
* a.wilma
* a.flint('Dino')
* a.create_method(:betty) { p self }
* a.betty
*
@ -1960,6 +1964,7 @@ rb_mod_public_instance_method(VALUE mod, VALUE vid)
*
* In Fred
* Charge it!
* I'm Dino!
* #<B:0x401b39e8>
*/
@ -2064,6 +2069,7 @@ rb_mod_define_method(int argc, VALUE *argv, VALUE mod)
* Defines a singleton method in the receiver. The _method_
* parameter can be a +Proc+, a +Method+ or an +UnboundMethod+ object.
* If a block is specified, it is used as the method body.
* If a block or a method has parameters, they're used as method parameters.
*
* class A
* class << self
@ -2080,6 +2086,10 @@ rb_mod_define_method(int argc, VALUE *argv, VALUE mod)
* guy = "Bob"
* guy.define_singleton_method(:hello) { "#{self}: Hello there!" }
* guy.hello #=> "Bob: Hello there!"
*
* chris = "Chris"
* chris.define_singleton_method(:greet) {|greeting| "#{greeting}, I'm Chris!" }
* chris.greet("Hi") #=> "Hi, I'm Chris!"
*/
static VALUE