Implementing support for vos/vok files.

A .vos file stores the result of compiling statements (defs, lemmas)
but not proofs.
A .vok file is an empty file that denotes successful compilation of
the full contents of a .v file.
Unlike a .vio file, a .vos file does not store suspended proofs,
so it is more lightweight. It cannot be completed into a .vo file.

4 files changed, 74 insertions, 0 deletions

diff --git a/test-suite/vos/A.v b/test-suite/vos/A.v
new file mode 100644
index 0000000000..11245ba015
--- /dev/null
+++ b/test-suite/vos/A.v
@@ -0,0 +1,4 @@
+Definition x := 3.
+
+Lemma xeq : x = x.
+Proof. auto. Qed.
diff --git a/test-suite/vos/B.v b/test-suite/vos/B.v
new file mode 100644
index 0000000000..735fefd745
--- /dev/null
+++ b/test-suite/vos/B.v
@@ -0,0 +1,34 @@
+Require Import A.
+
+Definition y := x.
+
+Lemma yeq : y = y.
+Proof. pose xeq. auto. Qed.
+
+
+Section Foo.
+
+Variable (HFalse : False).
+
+Lemma yeq' : y = y.
+Proof using HFalse. elimtype False. apply HFalse. Qed.
+
+End Foo.
+
+Module Type E. End E.
+
+Module M.
+  Lemma x : True.
+  Proof. trivial. Qed.
+End M.
+
+
+Module Type T.
+  Lemma x : True.
+  Proof. trivial. Qed.
+End T.
+
+Module F(X:E).
+  Lemma x : True.
+  Proof. trivial. Qed.
+End F.
diff --git a/test-suite/vos/C.v b/test-suite/vos/C.v
new file mode 100644
index 0000000000..5260b7cdaf
--- /dev/null
+++ b/test-suite/vos/C.v
@@ -0,0 +1,13 @@
+Require Import A B.
+
+Definition z := x + y.
+
+Lemma zeq : z = z.
+Proof. pose xeq. pose yeq. auto. Qed.
+
+Lemma yeq'' : y = y.
+Proof. apply yeq'. Admitted.
+
+Module M. Include B.M. End M.
+Module T. Include B.T. End T.
+Module F. Include B.F. End F.
diff --git a/test-suite/vos/run.sh b/test-suite/vos/run.sh
new file mode 100755
index 0000000000..2496fc8602
--- /dev/null
+++ b/test-suite/vos/run.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+set -e
+set -o pipefail
+export PATH="$COQBIN:$PATH"
+
+# Clean
+rm -f *.vo *.vos *.vok *.glob *.aux Makefile
+
+# Test building all vos, then all vok
+coq_makefile -R . TEST -o Makefile *.v
+make vos
+make vok
+
+# Cleanup
+make clean
+
+# Test using compilation in custom order
+set -x #echo on
+coqc A.v
+coqc -vos B.v
+coqc -vos C.v
+coqc -vok B.v
+coqc -vok C.v