From c329cf497908879f592308fdd1d20a5b631ca2df Mon Sep 17 00:00:00 2001 From: Adam Chlipala Date: Sun, 22 Jun 2008 19:10:47 -0400 Subject: Subsignatures example --- tests/subsig.lac | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 tests/subsig.lac (limited to 'tests/subsig.lac') diff --git a/tests/subsig.lac b/tests/subsig.lac new file mode 100644 index 00000000..c10fb3ba --- /dev/null +++ b/tests/subsig.lac @@ -0,0 +1,43 @@ +structure M = struct + signature S = sig + type t + end +end + +structure N : M.S = struct + type t = int +end + +structure M' = struct + type t = int + val y = 42 + + signature S = sig + val x : t + end +end + +structure N' : M'.S = struct + val x = 0 +end + +signature S = sig + type t + val y : t + + signature S = sig + val x : t + end +end + +structure M'S : S = M' + +structure V : M'S.S = struct + val x = M'S.y +end + +structure M'S' = M'S + +structure V : M'S'.S = struct + val x = M'S.y +end -- cgit v1.2.3