public Choice1(VarStringArgs varArgs, params string[] parameters)
{
I = 6;
}
public static void TestActivatorCreateInstanceBinding()
{
Type t;
object[] args;
Choice1 c1;
// Root the constructors
if (string.Empty.Length > 0)
{
new Choice1();
new Choice1(123);
new Choice1("Hey");
new Choice1(5.1);
new Choice1(new VarArgs());
new Choice1(new VarStringArgs());
new Choice1(new VarIntArgs());
}
t = null;
args = new object[1];
Assert.Throws<ArgumentNullException>(() => Activator.CreateInstance(t, args));
t = typeof(Choice1);
args = null; // Passing a null args is equivalent to passing an empty array of args.
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 1);
t = typeof(Choice1);
args = new object[] { };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 1);
t = typeof(Choice1);
args = new object[] { 42 };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 2);
// Primitive widening is allowed by the binder.
// but not by Dynamic.DelegateInvoke()...
{
t = typeof(Choice1);
args = new object[] { (short)(-2) };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 2);
}
t = typeof(Choice1);
args = new object[] { "Hello" };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 3);
t = typeof(Choice1);
args = new object[] { null };
Assert.Throws<AmbiguousMatchException>(() => Activator.CreateInstance(t, args));
// "optional" parameters are not optional as far as Activator.CreateInstance() is concerned.
t = typeof(Choice1);
args = new object[] { 5.1 };
Assert.ThrowsAny<MissingMemberException>(() => Activator.CreateInstance(t, args));
t = typeof(Choice1);
args = new object[] { 5.1, Type.Missing };
Assert.ThrowsAny<MissingMemberException>(() => Activator.CreateInstance(t, args));
t = typeof(Choice1);
args = new object[] { 5.1, "Yes" };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 4);
//
// "params" arguments are honored by Activator.CreateInstance()
//
VarArgs varArgs = new VarArgs();
t = typeof(Choice1);
args = new object[] { varArgs };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 5);
t = typeof(Choice1);
args = new object[] { varArgs, "P1" };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 5);
t = typeof(Choice1);
args = new object[] { varArgs, "P1", "P2" };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 5);
VarStringArgs varStringArgs = new VarStringArgs();
t = typeof(Choice1);
args = new object[] { varStringArgs };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 6);
t = typeof(Choice1);
args = new object[] { varStringArgs, "P1" };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 6);
t = typeof(Choice1);
args = new object[] { varStringArgs, "P1", "P2" };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 6);
t = typeof(Choice1);
args = new object[] { varStringArgs, 5, 6 };
Assert.ThrowsAny<MissingMemberException>(() => Activator.CreateInstance(t, args));
//
// Primitive widening not supported for "params" arguments.
//
// (This is probably an accidental behavior on the desktop as the default binder specifically checks to see if the params arguments are widenable to the
// params array element type and gives it the go-ahead if it is. Unfortunately, the binder then bollixes itself by using Array.Copy() to copy
// the params arguments. Since Array.Copy() doesn't tolerate this sort of type mismatch, it throws an InvalidCastException which bubbles out
// out of Activator.CreateInstance. Accidental or not, we'll inherit that behavior on .NET Native.)
//
VarIntArgs varIntArgs = new VarIntArgs();
t = typeof(Choice1);
args = new object[] { varIntArgs, 1, (short)2 };
Assert.Throws<InvalidCastException>(() => Activator.CreateInstance(t, args));
return;
}
public Choice1(VarStringArgs varArgs, params string[] parameters)
{
I = 6;
}
public static void TestActivatorCreateInstanceBinding()
{
Type t;
object[] args;
Choice1 c1;
// Root the constructors
if (string.Empty.Length > 0)
{
new Choice1();
new Choice1(123);
new Choice1("Hey");
new Choice1(5.1);
new Choice1(new VarArgs());
new Choice1(new VarStringArgs());
new Choice1(new VarIntArgs());
}
t = null;
args = new object[1];
Assert.Throws <ArgumentNullException>(() => Activator.CreateInstance(t, args));
t = typeof(Choice1);
args = null; // Passing a null args is equivalent to passing an empty array of args.
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 1);
t = typeof(Choice1);
args = new object[] { };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 1);
t = typeof(Choice1);
args = new object[] { 42 };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 2);
// Primitive widening is allowed by the binder.
// but not by Dynamic.DelegateInvoke()...
{
t = typeof(Choice1);
args = new object[] { (short)(-2) };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 2);
}
t = typeof(Choice1);
args = new object[] { "Hello" };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 3);
t = typeof(Choice1);
args = new object[] { null };
Assert.Throws <AmbiguousMatchException>(() => Activator.CreateInstance(t, args));
// "optional" parameters are not optional as far as Activator.CreateInstance() is concerned.
t = typeof(Choice1);
args = new object[] { 5.1 };
Assert.ThrowsAny <MissingMemberException>(() => Activator.CreateInstance(t, args));
t = typeof(Choice1);
args = new object[] { 5.1, Type.Missing };
Assert.ThrowsAny <MissingMemberException>(() => Activator.CreateInstance(t, args));
t = typeof(Choice1);
args = new object[] { 5.1, "Yes" };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 4);
//
// "params" arguments are honored by Activator.CreateInstance()
//
VarArgs varArgs = new VarArgs();
t = typeof(Choice1);
args = new object[] { varArgs };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 5);
t = typeof(Choice1);
args = new object[] { varArgs, "P1" };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 5);
t = typeof(Choice1);
args = new object[] { varArgs, "P1", "P2" };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 5);
VarStringArgs varStringArgs = new VarStringArgs();
t = typeof(Choice1);
args = new object[] { varStringArgs };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 6);
t = typeof(Choice1);
args = new object[] { varStringArgs, "P1" };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 6);
t = typeof(Choice1);
args = new object[] { varStringArgs, "P1", "P2" };
c1 = (Choice1)(Activator.CreateInstance(t, args));
Assert.Equal(c1.I, 6);
t = typeof(Choice1);
args = new object[] { varStringArgs, 5, 6 };
Assert.ThrowsAny <MissingMemberException>(() => Activator.CreateInstance(t, args));
//
// Primitive widening not supported for "params" arguments.
//
// (This is probably an accidental behavior on the desktop as the default binder specifically checks to see if the params arguments are widenable to the
// params array element type and gives it the go-ahead if it is. Unfortunately, the binder then bollixes itself by using Array.Copy() to copy
// the params arguments. Since Array.Copy() doesn't tolerate this sort of type mismatch, it throws an InvalidCastException which bubbles out
// out of Activator.CreateInstance. Accidental or not, we'll inherit that behavior on .NET Native.)
//
VarIntArgs varIntArgs = new VarIntArgs();
t = typeof(Choice1);
args = new object[] { varIntArgs, 1, (short)2 };
Assert.Throws <InvalidCastException>(() => Activator.CreateInstance(t, args));
return;
}
