From: akr@...
Date: 2014-05-07T13:12:33+00:00
Subject: [ruby-core:62446] [ruby-trunk - Bug #5330] [Rejected] Bug Report:	wrong backtrace

Issue #5330 has been updated by Akira Tanaka.

Status changed from Assigned to Rejected

Ulrich Kramer wrote:
> 
> a.rb:
>   test = Class.new(Object)
>   test.class_eval(File.read("b.rb"),"b.rb",1)
>   test.run
> 
> b.rb:
>   p caller
>   def self.run()
>     p caller
>   end
> 
> When I run a.rb I got:
>   ["a.rb:2:in `class_eval'", "a.rb:2:in `<main>'"]
>   ["a.rb:3:in `<main>'"]
> 
> Should be:
>   ["b.rb:1:in `class_eval'", "a.rb:2:in `<main>'"]
>   ["b.rb:3:in `<main>'"]

No.

caller() doesn't return the current stack frame unless 0 is specified as the argument.

caller() returns an array which contains the caller stack frame and ancestor stack frames.
caller of the top level of b.rb is test.class_eval described in a.rb.
caller of "run" method is the top level of a.rb.

caller(0) makes things clear.

```
% cat a.rb
test = Class.new(Object)
test.class_eval(File.read("b.rb"),"b.rb",1)
test.run
% cat b.rb
p caller(0)
def self.run()
  p caller(0)
end
% ./ruby a.rb                               
["b.rb:1:in `<main>'", "a.rb:2:in `class_eval'", "a.rb:2:in `<main>'"]
["b.rb:3:in `run'", "a.rb:3:in `<main>'"]
```

b.rb:1 and b.rb:3 appears as the first element (current stack frame).
The second element shows the stack frame in a.rb.


----------------------------------------
Bug #5330:  Bug Report: wrong backtrace
https://bugs.ruby-lang.org/issues/5330#change-46594

* Author: Ulrich Kramer
* Status: Rejected
* Priority: Normal
* Assignee: Akira Tanaka
* Category: 
* Target version: 
* ruby -v: ruby 1.9.2p290 (2011-07-09 revision 32553) [x86_64-linux]
* Backport: 
----------------------------------------
=begin
I would like to report a ruby1.9 bug. I tried to create a new ticket in redmine. After registration(wonderix) I tried to login, but I didn't succeed. After 4 password resets I gave up.

So here is my description:

a.rb:
  test = Class.new(Object)
  test.class_eval(File.read("b.rb"),"b.rb",1)
  test.run

b.rb:
  p caller
  def self.run()
    p caller
  end

When I run a.rb I got:
  ["a.rb:2:in `class_eval'", "a.rb:2:in `<main>'"]
  ["a.rb:3:in `<main>'"]

Should be:
  ["b.rb:1:in `class_eval'", "a.rb:2:in `<main>'"]
  ["b.rb:3:in `<main>'"]

ruby -v:
  ruby 1.9.2p290 (2011-07-09 revision 32553) [x86_64-linux]


Mit freundlichen Gr����en | best regards,

Ulrich Kramer
Senior Developer
=end




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