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* vm_eval.c: [DOC] [ci skip] Improve instance_eval description when given a

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block or String arguments. By @nathanl via documenting-ruby/ruby#28


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46085 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
zzak 2014-05-24 21:52:31 +00:00
parent daca823c93
commit 602f7b5d82
2 changed files with 21 additions and 6 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Sun May 25 06:50:19 2014 Zachary Scott <e@zzak.io>
* vm_eval.c: [DOC] Improve instance_eval description when given a
block or String arguments. By @nathanl via documenting-ruby/ruby#28
Sun May 25 06:29:39 2014 Zachary Scott <e@zzak.io>
* array.c: [DOC] Clarify default argument for Array.new.

22
vm_eval.c
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@ -1595,24 +1595,34 @@ specific_eval(int argc, VALUE *argv, VALUE klass, VALUE self)
/*
* call-seq:
* obj.instance_eval(string [, filename [, lineno]] ) -> obj
* obj.instance_eval {| | block } -> obj
* obj.instance_eval {|obj| block } -> obj
*
* Evaluates a string containing Ruby source code, or the given block,
* within the context of the receiver (_obj_). In order to set the
* context, the variable +self+ is set to _obj_ while
* the code is executing, giving the code access to _obj_'s
* instance variables. In the version of <code>instance_eval</code>
* that takes a +String+, the optional second and third
* parameters supply a filename and starting line number that are used
* when reporting compilation errors.
* instance variables and private methods.
*
* When <code>instance_eval</code> is given a block, _obj_ is also
* passed in as the block's only argument.
*
* When <code>instance_eval</code> is given a +String+, the optional
* second and third parameters supply a filename and starting line number
* that are used when reporting compilation errors.
*
* class KlassWithSecret
* def initialize
* @secret = 99
* end
* private
* def the_secret
* "Ssssh! The secret is #{@secret}."
* end
* end
* k = KlassWithSecret.new
* k.instance_eval { @secret } #=> 99
* k.instance_eval { @secret } #=> 99
* k.instance_eval { the_secret } #=> "Ssssh! The secret is 99."
* k.instance_eval {|obj| obj == self } #=> true
*/
VALUE