private static void Walk(object o, int count)
{
Console.Write(o.ToString().PadRight(70, ' ') + count + "\t");
var w = new FastHeapReferenceWalker();
var set =
//new ObjectSet<object>();
new HashSet <object>(ReferenceEqualityComparer <object> .Instance);
var sw = new Stopwatch();
for (var i = 0; i < count; i++)
{
sw.Start();
{
w.Walk(o, set.Add);
}
sw.Stop();
set.Clear();
}
Console.WriteLine(sw.Elapsed);
}
private static HashSet <object> AnalyzeFast(object obj)
{
var a = new FastHeapReferenceWalker();
var set = new HashSet <object>(ReferenceEqualityComparer <object> .Instance);
a.Walk(obj, set.Add);
return(set);
}
public void FastHeapReferenceWalker_Null()
{
var w = new FastHeapReferenceWalker();
w.Walk(obj: null, _ =>
{
Assert.Fail();
return(true);
});
}
public void FastHeapReferenceWalker_Vector_Value1()
{
var w = new FastHeapReferenceWalker();
var xs = new[] { new KeyValuePair <int, int>(1, 2), new KeyValuePair <int, int>(2, 3), new KeyValuePair <int, int>(3, 4) };
var set = new HashSet <object>(ReferenceEqualityComparer <object> .Instance);
w.Walk(xs, set.Add);
AssertSetEquals(set, new object[] { xs });
}
public void FastHeapReferenceWalker_Vector_Ref2()
{
var w = new FastHeapReferenceWalker();
var xs = new object[] { new object(), "bar", 42 };
var set = new HashSet <object>(ReferenceEqualityComparer <object> .Instance);
w.Walk(xs, set.Add);
AssertSetEquals(set, new object[] { xs }.Concat(xs));
}
public void FastHeapReferenceWalker_Object()
{
var w = new FastHeapReferenceWalker();
var x = new object();
var set = new HashSet <object>(ReferenceEqualityComparer <object> .Instance);
w.Walk(x, set.Add);
AssertSetEquals(set, x);
}
public void FastHeapReferenceWalker_Vector_Value2()
{
var w = new FastHeapReferenceWalker();
var xs = new[] { new KeyValuePair <int, object>(1, "bar"), new KeyValuePair <int, object>(2, new object()), new KeyValuePair <int, object>(3, 42) };
var set = new HashSet <object>(ReferenceEqualityComparer <object> .Instance);
w.Walk(xs, set.Add);
AssertSetEquals(set, new object[] { xs }.Concat(xs.Select(x => x.Value)));
}
public void FastHeapReferenceWalker_Multidimensional_Ref1()
{
var w = new FastHeapReferenceWalker();
var xs = new object[2, 3] {
{ new object(), "bar", 42 }, { new object(), "qux", 43 }
};
var set = new HashSet <object>(ReferenceEqualityComparer <object> .Instance);
w.Walk(xs, set.Add);
AssertSetEquals(set, new object[] { xs }.Concat(xs.Cast <object>()));
}
public void FastHeapReferenceWalker_Multidimensional_Value1()
{
var w = new FastHeapReferenceWalker();
var xs = new KeyValuePair <int, object>[2, 3]
{
{ new KeyValuePair <int, object>(1, "bar"), new KeyValuePair <int, object>(2, new object()), new KeyValuePair <int, object>(3, 42) },
{ new KeyValuePair <int, object>(4, "baz"), new KeyValuePair <int, object>(5, new object()), new KeyValuePair <int, object>(6, 43) },
};
var set = new HashSet <object>(ReferenceEqualityComparer <object> .Instance);
w.Walk(xs, set.Add);
AssertSetEquals(set, new object[] { xs }.Concat(xs.Cast <KeyValuePair <int, object> >().Select(kv => kv.Value)));
}
public void FastHeapReferenceWalker_ArgumentChecking()
{
var w = new FastHeapReferenceWalker();
Assert.ThrowsException <ArgumentNullException>(() => w.Walk(new object(), fence: null));
}
public void FastHeapReferenceWalker_Deep()
{
var w = new FastHeapReferenceWalker();
var bar =
new Bar
{
X = 1,
Y = "bar",
Z = new Foo
{
A = 2,
B = "qux",
C = new[]
{
new Qux
{
I = 3,
J = "foo",
K = new Baz
{
N = 4,
O = "baz",
P = new[]
{
"abc",
new object()
}
}
},
new Qux
{
I = 5,
J = "FOO",
K = new Baz
{
N = 6,
O = "BAZ",
P = new[]
{
"xyz",
new object()
}
}
}
}
}
};
var set = new HashSet <object>(ReferenceEqualityComparer <object> .Instance);
w.Walk(bar, set.Add);
AssertSetEquals(set, new object[]
{
bar,
bar.Y,
bar.Z.B,
bar.Z.C,
bar.Z.C[0].J,
bar.Z.C[0].K.O,
bar.Z.C[0].K.P,
bar.Z.C[0].K.P[0],
bar.Z.C[0].K.P[1],
bar.Z.C[1].J,
bar.Z.C[1].K.O,
bar.Z.C[1].K.P,
bar.Z.C[1].K.P[0],
bar.Z.C[1].K.P[1],
});
}