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Diffstat (limited to 'src/nbc/fail.sml')
| -rw-r--r-- | src/nbc/fail.sml | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/nbc/fail.sml b/src/nbc/fail.sml new file mode 100644 index 0000000..f3d324c --- /dev/null +++ b/src/nbc/fail.sml @@ -0,0 +1,10 @@ +signature FAIL = sig + val fail: string -> 'a +end + +structure Fail :> FAIL = struct + fun fail why = ( + TextIO.output (TextIO.stdErr, why ^ "\n") + ; OS.Process.exit OS.Process.failure + ) +end |