From 92bc1c642c2bf9001b86c71bb26f3e73011d02a7 Mon Sep 17 00:00:00 2001 From: Jasper Hugunin Date: Wed, 10 Jan 2018 17:13:44 +0900 Subject: Add a test that `prod_applist_assum` reduces the right number of let-ins --- test-suite/success/dtauto-let-deps.v | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 test-suite/success/dtauto-let-deps.v (limited to 'test-suite/success') diff --git a/test-suite/success/dtauto-let-deps.v b/test-suite/success/dtauto-let-deps.v new file mode 100644 index 000000000..094b2f8b3 --- /dev/null +++ b/test-suite/success/dtauto-let-deps.v @@ -0,0 +1,24 @@ +(* +This test is sensitive to changes in which let-ins are expanded when checking +for dependencies in constructors. +If the (x := X) is not reduced, Foo1 won't be recognized as a conjunction, +and if the (y := X) is reduced, Foo2 will be recognized as a conjunction. + +This tests the behavior of engine/termops.ml : prod_applist_assum, +which is currently specified to reduce exactly the parameters. + +If dtauto is changed to reduce lets in constructors before checking dependency, +this test will need to be changed. +*) + +Context (P Q : Type). +Inductive Foo1 (X : Type) (x := X) := foo1 : let y := X in P -> Q -> Foo1 x. +Inductive Foo2 (X : Type) (x := X) := foo2 : let y := X in P -> Q -> Foo2 y. + +Goal P -> Q -> Foo1 nat. +solve [dtauto]. +Qed. + +Goal P -> Q -> Foo2 nat. +Fail solve [dtauto]. +Abort. -- cgit v1.2.3