Rakudo: File ending with backslash silently exits with 0 status

[softmoth]

The Problem

If a raku file ends with a backslash on the last line, rakudo does nothing and silently exits with status 0 (success).

Expected Behavior

Either report a compile-time error, or treat EOF as if there's an extra newline there so it would succeed.

Steps to Reproduce

$ cat bug.raku
die "Hi";
# if there were a blank line below this, the bug would not appear \
$ perl6 bug.raku
$ echo $?
0
$ 

Environment

• Operating system: Arch Linux
• Compiler version (perl6 -v): This is Rakudo version 2020.02-48-g4e3e937bc built on MoarVM version 2020.02 implementing Raku 6.d.

[AlexDaniel]

I'm really surprised, but it's an actual bug!

• Example as a gist: https://gist.github.com/AlexDaniel/e25346a2cd0c19c94ad44e81bcb27626
• Output on all releases: https://gist.github.com/be404f776790049c75e439940ed7b3e2
• Bisected: (2016-02-13) https://github.com/rakudo/rakudo/commit/9576596690b1ad8feabb0adf949d63be0ac6ee60

[vendethiel]

Clearly it should continue executing the next file :-).