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// RUN: %dafny /print:"%t.print" /dprint:"%t.dprint" "%s" > "%t"
// RUN: %diff "%s.expect" "%t"
module ImportByName {
module A {
type T
function method P(): T
method M(t: T)
}
module B {
import A
}
module C {
import A
type K = A.T
import W_A = W_B
import W_B = A
}
module D {
import B
import C
method Client() returns (t: B.A.T, u: C.A.T) {
t := u;
u := t;
var x, y := B.A.P(), C.A.P();
assert x == y;
C.A.M(t);
B.A.M(u);
var anything;
assert t == anything; // error: (testing that it's not possible to prove false here)
}
}
module E {
import A
import B
import C
method Client() returns (r: A.T, k: C.K) {
var x, y, z := B.A.P(), C.A.P(), A.P();
assert x == z == y;
r, r, r := x, y, z;
k, k, k, k := x, y, z, r;
assert r == C.W_A.P();
assert r == C.W_B.P();
var anything;
assert r == anything; // error: (testing that it's not possible to prove false here)
}
}
}
// ------------------------------------------------------------
module ImportOpened {
module A {
type T
function method P(): T
method M(t: T)
}
module B {
import opened A
}
module C {
import opened A
type K = T
type L = A.T // should work when name is qualified, too
import W_A = W_B
import W_B = A
}
module C' {
import A // import by name
type K = A.T
}
module D {
import opened B
import opened C
import opened C'
method Client() returns (t: B.A.T, u: C.A.T, v: C'.A.T, w: B.T) {
t,u, v, w := u, v, w, t;
var x, y, z := B.A.P(), C.A.P(), C'.A.P();
assert x == y == z;
var o;
x, y, z, o := B.P(), C.P(), C'.A.P(), A.P();
assert x == y == z == o;
B.A.M(u);
C.A.M(t);
C'.A.M(t);
B.M(t);
C.M(t);
M(t);
var anything;
assert t == anything; // error: (testing that it's not possible to prove false here)
}
}
module E {
import opened A
import opened B
import opened C
method Client() returns (r: A.T, k: C.K, l: C.L, m: K, n: L) {
var x, y, z := B.A.P(), C.A.P(), A.P();
assert x == z == y;
r, r, r := x, y, z;
k, k, k, k := x, y, z, r;
l, l, l, l, l := x, y, z, r, k;
m, n := k, l;
assert m == n == k;
assert r == C.W_A.P() == C.W_B.P();
assert r == W_A.P() == W_B.P();
var anything;
assert r == anything; // error: (testing that it's not possible to prove false here)
}
}
}
module AmbiguousModuleReference {
module A {
module Inner {
predicate Q()
}
}
module B {
module Inner {
predicate Q()
}
}
module Client {
import A
import B
method M() {
assert A.Inner.Q() <==> B.Inner.Q(); // error: no reason to think these would be equal
}
}
}
|
