[ruby-core:44331] [ruby-trunk - Bug #6286][Feedback] Add Exception#format method

Issue #6286 has been updated by nobu (Nobuyoshi Nakada).

Tracker changed from Feature to Bug
Category set to lib
Status changed from Open to Feedback
Target version set to 2.0.0

vo.x (Vit Ondruch) wrote:
> It would be nice if Exception class could be extended by #format method (or method with some more suitable name), which would provide the same formatting as is standard output of Ruby exception, e.g. 

Why and how would it be nice?
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Bug #6286: Add Exception#format method
https://bugs.ruby-lang.org/issues/6286#change-25877

Author: vo.x (Vit Ondruch)
Status: Feedback
Priority: Normal
Assignee: 
Category: lib
Target version: 2.0.0
ruby -v: 


It would be nice if Exception class could be extended by #format method (or method with some more suitable name), which would provide the same formatting as is standard output of Ruby exception, e.g. 

boomtest.rb:18:in `go': boom (RuntimeError)
  from boomtest.rb:34:in `foo'
  from boomtest.rb:36

Currently, this formatting is done by error_print function from eval_error.c. Unfortunately this method is just Ruby's internal.

Please note that there exists exception_string gem, which add similar method [1] to the Exception class.


[1] https://github.com/raggi/exception_string/blob/master/lib/exception_string.rb#L15-19


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