42 lines
1.4 KiB
Perl
42 lines
1.4 KiB
Perl
Reproduction of the issue in #2896
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We have a dependency cycle of the form impl <- lib <- vlib
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where vlib is a virtual library, and impl implements this library.
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$ echo "(lang dune 2.3)" > dune-project
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$ mkdir vlib impl lib
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$ touch impl/vlib.ml
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$ echo "val run : unit -> unit" > vlib/vlib.mli
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$ cat >vlib/dune <<EOF
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> (library (name vlib) (virtual_modules vlib))
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> EOF
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$ echo "let bar () = Vlib.run ();;" > lib/lib.ml
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$ cat >lib/dune <<EOF
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> (library (name lib) (libraries vlib))
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> EOF
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$ echo "let run () = Lib.bar ();;" > impl/vlib.ml
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$ cat >impl/dune <<EOF
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> (library (name impl) (implements vlib) (libraries lib))
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> EOF
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$ dune build @all
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Error: Library "vlib" was pulled in.
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-> required by library "lib" in _build/default/lib
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-> required by library "impl" in _build/default/impl
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-> required by _build/default/impl/.impl.objs/byte/vlib.cmo
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-> required by _build/default/impl/impl.cma
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-> required by alias impl/all
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[1]
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The implementation impl was built, but it's not usable:
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$ echo 'Vlib.run ()' > foo.ml
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$ echo "(executable (name foo) (libraries impl))" > dune
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$ dune exec ./foo.exe
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Error: Library "vlib" was pulled in.
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-> required by library "lib" in _build/default/lib
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-> required by library "impl" in _build/default/impl
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-> required by executable foo in dune:1
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-> required by _build/default/.foo.eobjs/native/dune__exe__Foo.cmx
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-> required by _build/default/foo.exe
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[1]
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