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swrup 2025-11-11 02:07:51 +01:00
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97
unikernel/duniverse/dune_/test/blackbox-tests/test-cases/opam-constraints-and-or-no-args.t Normal file
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`(and)`/`(or)` with no argument should get rejected.
$ cat > dune-project << EOF
> (lang dune 3.9)
> (generate_opam_files)
> (package
> (name p)
> (depends
> (p (and))))
> EOF
$ dune build
File "dune-project", line 6, characters 5-10:
6 | (p (and))))
^^^^^
Error: Logical operators with no arguments was deleted in version 3.9 of the
dune language.
[1]
$ cat > dune-project << EOF
> (lang dune 3.9)
> (generate_opam_files)
> (package
> (name p)
> (depends
> (p (or))))
> EOF
$ dune build
File "dune-project", line 6, characters 5-9:
6 | (p (or))))
^^^^
Error: Logical operators with no arguments was deleted in version 3.9 of the
dune language.
[1]
In < 3.9 they are accepted, assuming they are not used to generate opam files.
$ cat > dune-project << EOF
> (lang dune 3.8)
> (package
> (name p)
> (allow_empty)
> (depends
> (p (and))))
> EOF
$ dune build
$ cat > dune-project << EOF
> (lang dune 3.8)
> (package
> (name p)
> (allow_empty)
> (depends
> (p (or))))
> EOF
$ dune build
Generating opam files should trigger a (nice) error:
$ cat > dune-project << EOF
> (lang dune 3.8)
> (generate_opam_files)
> (package
> (name p)
> (depends
> (p (and))))
> EOF
$ dune build
Error: logical operations with no arguments are not supported
-> required by _build/default/p.opam
-> required by _build/install/default/lib/p/opam
-> required by _build/default/p.install
-> required by alias all
-> required by alias default
[1]
$ cat > dune-project << EOF
> (lang dune 3.8)
> (generate_opam_files)
> (package
> (name p)
> (depends
> (p (or))))
> EOF
$ dune build
Error: logical operations with no arguments are not supported
-> required by _build/default/p.opam
-> required by _build/install/default/lib/p/opam
-> required by _build/default/p.install
-> required by alias all
-> required by alias default
[1]