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Feature #9918

Updated by nobu (Nobuyoshi Nakada) over 4 years ago

Exception#cause has been added in Feature #8257.
But the cause is never shown, one needs to inspect exc.cause to know the cause.

The cause should be shown by default, for instance:

~~~ruby


begin

raise "cause"

rescue

raise "wrapper"

end
~~~


Should output:

-:4:in `rescue in <main>': wrapper (RuntimeError)
from -:1:in `<main>'
Caused by:
-e:1:in `<main>': org (RuntimeError)

And not only the first 2 lines.
Logically, #inspect should also include the cause such as:

#<RuntimeError: wrapper cause:#<RuntimeError: org>>

What do you think?

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