[Help-bash] set -e and CMD_IGNORE_RETURN question

[Kolya]

Hello!

I have many troubles, when call function inside test statement, or 
something like this:

set -e

f() {

    false

    echo 1

}

f && echo ok

if [ "$(f)" == "1" ] ...


Generally, i do not want "echo 1" execute, i want catch "false" by set -e.

I understand the mail logic of how it work.


I look in source, bash set CMD_IGNORE_RETURN option and not possible to 
drop it down. It require, because bash executor always call err_trap 
when get error.


Question is: this is bash-interpreter coding problem only, or something 
else? Can me (or someone) do new option, like set -e, what won't be 
ignored inside functions? (maybe need do something like 
exception-handling, or other ways). Or this is conceptual problem and 
this option newer can be implemented?


Thanks!