54 lines
1 KiB
Perl
54 lines
1 KiB
Perl
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Test Melange dependent recompilation
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Set up and build a Melange library and `melange.emit`
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$ cat > dune-project <<EOF
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> (lang dune 3.13)
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> (using melange 0.1)
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> EOF
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$ mkdir lib
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$ cat > lib/dune <<EOF
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> (library
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> (name foo)
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> (modes melange))
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> EOF
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$ cat > lib/foo.ml <<EOF
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> let x () = "hello"
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> EOF
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$ cat > lib/foo.mli <<EOF
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> val x : unit -> string
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> EOF
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$ cat > dune <<EOF
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> (melange.emit
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> (target out)
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> (emit_stdlib false)
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> (libraries foo))
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> EOF
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$ cat > x.ml <<EOF
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> let () = Js.log (Foo.x ())
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> EOF
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$ dune build
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$ node ./_build/default/out/x.js
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hello
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Now change `foo.ml`, but keep `foo.mli` intact
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$ cat > lib/foo.ml <<EOF
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> let x () = "hi"
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> EOF
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Build again, noting that x.ml could have been skipped?
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$ dune build --display short
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melc lib/.foo.objs/melange/foo.{cmj,cmt}
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melc .out.mobjs/melange/melange__X.{cmi,cmj,cmt}
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melc out/lib/foo.js
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melc out/x.js
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$ node ./_build/default/out/x.js
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hi
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