Oliver Kahrmann 58542d36be Preserve empty location for empty files ...

Without a region, error messages in exceptions are unable to print
a filename.

By retaining the location in a zero-length region and detecting this
when formatting the exception text it is possible to print the filename
and explicitly state that the file is completely empty.

Fixes #160

2021-05-25 20:52:33 +02:00

80 KiB

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