RCR 15: Replace 'caller' with 'call

Abstract

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This is a legacy RCR from Ruby Garden, submitted by dave. Matz has declared these RCRs obsolete, and asked that their authors resubmit them in the new format.

Replace 'caller' with 'call_stack' returning an array of arrays each with the format:

      [object_called, method_called_id, args, file_with_call, line_for_call]

'call_stack' takes a level parameter (almost) in the same way as 'caller'. Example:

      def m(a,b)
        puts call_stack.inspect
      end
      def m2(a,b)
        m(a,b)
      end      m2(1,true)

would print

      [[main, :m, [1, true], "../call_stack/t2.rb", 5], [main, :m2, [1, true],
      "../call_stack/t2.rb", 8]]

It might also be useful to add any blocks associated with calls (I'm skeptical if this adds enough value for the added complexity).

Maybe there's a risk in including the args. I'm not sure... Probably there's a risk in any of this since Matz hasn't previously included it?

Implementation

(RCR imported from old format)

Comments

Current voting

Don't replace, but add.. (Dave, 2001-07-30 19:46:16)

I've voting (mildly) for this one, but on condition we don't replace caller, but rather add a new method.--Dave

Here's a patch that does some of that... (WayneConrad, 2001-10-19 17:56:40)

See > for a patch that does some (but not all) of this request. I hadn't thought of providing the calling object (right now I provide the class), nor had I thought of the arguments. I'll take a look and see if those are reasonable/easy things to add to the patch.

Add bindings (, 2002-05-21 02:45:28)

I feel like it would be even more useful if there was a way of getting the bindings too, like in set_trace_proc().

Jean-Hugues

I'd rather do it this way: (matju, 2003-08-04 12:40:29)

RCR #29 : More Reflection :

(which is partially accepted, but i don't know what of it will go into ruby, and _when_)

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RCR 15: Replace 'caller' with 'call_stack'

Abstract

Problem

Proposal

Analysis

Implementation

Don't replace, but add.. (Dave, 2001-07-30 19:46:16)

Here's a patch that does some of that... (WayneConrad, 2001-10-19 17:56:40)

Add bindings (, 2002-05-21 02:45:28)

I'd rather do it this way: (matju, 2003-08-04 12:40:29)

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