From: Ralph Shnelvar <ralphs@...32.com>
Date: 2010-09-04T13:09:10+09:00
Subject: Re: Getting name of current method

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Ryan,

Friday, September 3, 2010, 6:50:53 PM, you wrote:


RD> On Sep 3, 2010, at 17:44 , Ralph Shnelvar wrote:

>> Ruby has __FILE__ and __LINE__ to give the file and line omber where we are currently at in the code.

>> Consider
>>  Class X
>>    def my_method
>>      m = ???  # I want m to be assigned "my_method"
>>    end
>>  end

>> How can I get m set properly?

>> I guess I could use define_method to define my_method and then pass the name into the function .. but that is so ugly and also flattens scope that I may not want flattened.

RD> `ri Kernel.caller`

Thanks for pointing that out.   Interesting and useful.


I have come up with two alternate methods and I'd like to ask the help of all those here to help me modify the first method so that it does what I want

- - - -
class X
  @m = "method_1"
  @s = <<-XXX
    def #{@m}
      puts "In #{@m}"
    end
  XXX

  puts "#{__FILE__} @ #{__LINE__}"
  puts @s
  eval @s

  m = "method_2"
  eval("def #{m};  puts \"In #{m}\"; end")

end

x = X.new

x.method_1
x.method_2

- - -- -


The code, above, works fine in 1.8.6

Note that I have to define @m before @s.   How can I set things up so that I can define @m after @s so that I can modify @m and get a new function?

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