adt example

Author: utaal

verify/rust_verify/example/adts.rs

@@ -0,0 +1,41 @@
+#[macro_use] extern crate builtin_macros;
+extern crate builtin;
+use builtin::*;
+mod pervasive;
+use pervasive::*;
+
+#[derive(Structural, PartialEq, Eq)]
+struct Car<P> {
+    four_doors: bool,
+    passengers: P,
+}
+
+#[derive(Structural, PartialEq, Eq)]
+enum Vehicle {
+    Car(Car<int>),
+    Train(bool),
+}
+
+fn test_struct_1(p: int) {
+    let c1 = Car { four_doors: true, passengers: p };
+    assert(c1.passengers == p);
+    assert((Car { passengers: p, four_doors: true }).passengers == p);
+}
+
+// fn test_structural_eq(passengers: int) {
+//     let c1 = Car { passengers, four_doors: true };
+//     let c2 = Car { passengers, four_doors: false };
+//     let c3 = Car { passengers, four_doors: true };
+// 
+//     assert(c1 == c3);
+//     assert(c1 != c2);
+// 
+//     let t = Vehicle::Train(true);
+//     let ca = Vehicle::Car(c1);
+// 
+//     assert(t != ca);
+//     // assert(t == ca); // FAILS
+// }
+
+fn main() {
+}