Issue #16001 has been updated by matz (Yukihiro Matsumoto).


I prefer `caller_location(n=1)` or `direct_caller`. For former, it might be confusing with `caller_locations`. The latter is straightforward but it is restricted to the direct caller (`n=1`).

Matz.

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Feature #16001: Provide an alias to Kernel#caller_locations(1,1) and Kernel#caller(1,1)
https://bugs.ruby-lang.org/issues/16001#change-81343

* Author: piotrmurach (Piotr Murach)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
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As it is common to use `caller_locations(1,1)` and `caller(1,1)`, this proposes aliases to help get the previous backtrace frame and improve performance by avoiding getting full backtrace information - a common mistake.

The currently suggestions are:
* `immediate_caller`
* `first_caller`
* `caller_only`

This feature request is based on a conversation with Charles Nutter who says:
> This is such a common thing... maybe we need to add something like #caller_only or #caller1 that basically do caller(1,1).



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