diff options
| author |  Benjamin Barenblat <bbaren@mit.edu> | 2016-05-30 17:58:02 -0400 |
|---|---|---|
| committer | Benjamin Barenblat <bbaren@mit.edu> | 2016-05-30 17:58:02 -0400 |
| commit | e67c951ad9c5c637e36a6f025ba3d6e3ad945416 (patch) | |
| tree | 0cfb5c339602e4bdebf4bf97f3f0ccc3923c14d1 /Test/irondafny0/Queue.dfyi | |
| parent | 000aa762e1fee4b9bd83ec3d7c8b61fd203e2c9d (diff) | |
| parent | df5c5f547990c1f80ab7594a1f9287ee03a61754 (diff) | |
Merge commit 'df5c5f5'
Diffstat (limited to 'Test/irondafny0/Queue.dfyi')
| -rw-r--r-- | Test/irondafny0/Queue.dfyi | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/Test/irondafny0/Queue.dfyi b/Test/irondafny0/Queue.dfyi new file mode 100644 index 00000000..06f4b29e --- /dev/null +++ b/Test/irondafny0/Queue.dfyi @@ -0,0 +1,22 @@ +// Queue.dfyi
+
+abstract module Queue {
+ type Item
+ type Queue = seq<Item>
+
+ method Init() returns (q: Queue)
+ ensures |q| == 0;
+
+ method Push(item: Item, q: Queue) returns (q': Queue)
+ ensures |q'| == |q| + 1;
+
+ method Pop(q: Queue) returns (item: Item, q': Queue)
+ requires |q| > 0;
+ ensures item in q;
+ ensures |q'| == |q| - 1;
+}
+
+abstract module MainSpec {
+ import Q : Queue
+}
+
|