From: "byroot (Jean Boussier) via ruby-core" <ruby-core@...>
Date: 2024-02-16T11:38:05+00:00
Subject: [ruby-core:116797] [Ruby master Feature#19117] Include the method owner in backtraces, not just the method name

Issue #19117 has been updated by byroot (Jean Boussier).


> I can probably restore rescue in and ensure in with the above inconsistency. Do you like it?

I honestly don't mind either way, I noticed this while updating the Rails test suite, figured I'd report it in case it wasn't intentional.

I suppose you could argue that `rescue in` has some value, as it shows there was some error handling, but I'm not particularly attached to it. I'm totally fine with removing it.

----------------------------------------
Feature #19117: Include the method owner in backtraces, not just the method name
https://bugs.ruby-lang.org/issues/19117#change-106820

* Author: byroot (Jean Boussier)
* Status: Closed
* Priority: Normal
* Target version: 3.4
----------------------------------------
```
module Foo
  class Bar
    def inspect
      1 + '1'
    end
  end
end

p Foo::Bar.new
```

This code produce the following backtrace:


```
/tmp/foo.rb:4:in `+': String can't be coerced into Integer (TypeError)
	from /tmp/foo.rb:4:in `inspect'
	from /tmp/foo.rb:9:in `p'
	from /tmp/foo.rb:9:in `<main>'
```

This works, but on large codebases and large backtraces the method name isn't always all that revealing, most of the time you need to open many of the locations listed in the backtrace to really understand what is going on.

I propose that we also include the owner name:

```
/tmp/foo.rb:4:in `Integer#+': String can't be coerced into Integer (TypeError)
	from /tmp/foo.rb:4:in `Foo::Bar#inspect'
	from /tmp/foo.rb:9:in `Kernel#p'
	from /tmp/foo.rb:9:in `<main>'
```

I believe that in many case it would allow to much better understand the backtrace without having to jump back and forth between it and the source code.

This is inspired by @ivoanjo 's `backtracie` gem: https://github.com/ivoanjo/backtracie



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