public void Fails4()
{
Contract.Inhale(Contract.Acc(this.a, Permission.Wildcard) && Contract.Acc(this.b, Permission.Wildcard));
Contract.Inhale(Contract.Acc(Q(), Permission.Write));
// expect SSIL204 at next
Contract.Assert(this.b > 0);
}
Construction(int number)
{
Contract.Ensures(Contract.Acc(field));
Contract.Ensures(this.field == number);
field = number;
}
public static void Test(Assignments ass, CellAss cell)
{
Contract.Requires(Contract.Acc(ass.a) && Contract.Acc(ass.c) && Contract.Acc(ass.c.Value) &&
Contract.Acc(cell.Value));
var d = new Assignments();
Contract.Assert(d.a == 0);
Contract.Assert(d.c.Value == 0);
ass.a = 1;
Contract.Assert(ass.a == 1);
ass.c.Value = 2;
Contract.Assert(ass.c.Value == 2);
cell.Value = 3;
Contract.Assert(cell.Value == 3);
ass.c = cell;
Contract.Assert(ass.c == cell);
Contract.Assert(ass.c.Value == 3);
d.a = 4;
Contract.Assert(d.a == 4);
d.c.Value = 5;
Contract.Assert(d.c.Value == 5);
d.c = ass.c;
Contract.Assert(d.c == ass.c);
d = ass;
Contract.Assert(d.a == 1);
Contract.Assert(d == ass);
}
public void Fails3()
{
Contract.Inhale(Contract.Acc(this.a, Permission.Wildcard) && Contract.Acc(this.b, Permission.Wildcard));
Contract.Assume(this.b == 0);
// expect SSIL204 at next
Contract.Assert(this.a == 0);
}
public Assignments()
{
Contract.Ensures(Contract.Acc(this.a) && this.a == 0);
Contract.Ensures(Contract.Acc(this.c) && Contract.Acc(this.c.Value) && this.c.Value == 0);
this.a = 0;
this.c = new CellAss();
}
public void Succeeds()
{
Contract.Inhale(Contract.Acc(this.a, Permission.Wildcard) && Contract.Acc(this.c, Permission.Wildcard) && Contract.Acc(this.c, Permission.Half));
Contract.Assume(this.a > 0);
Contract.Assert(this.a > 0);
Contract.Assume(F() > 0);
Contract.Fold(Contract.Acc(P(), Permission.Write));
Contract.Assume(Contract.Acc(Q(), Permission.Write));
Contract.Unfold(Contract.Acc(Q(), Permission.Write));
Contract.Assert(this.b > 0);
}
public bool Q()
{
return(Contract.Acc(this.b, Permission.Wildcard) && this.b > 0);
}
public bool P()
{
return(Contract.Acc(this.c, Permission.Wildcard) && F() > 0);
}
public int F()
{
Contract.Requires(Contract.Acc(this.c, Permission.Wildcard));
return(this.c);
}
public C(int a)
{
Contract.Ensures(Contract.Acc(this.a) && this.a == a);
this.a = a;
}
public CellAss()
{
Contract.Ensures(Contract.Acc(this.Value) && this.Value == 0);
this.Value = 0;
}
