private void GeneratePrefixWithMultipleArgsWorks()
{
// Generate prefix for SingleArg
MethodInfo method = AccessTools.Method(typeof(Foo), nameof(Foo.ThreeArgs));
MethodInfo dispatcher = AccessTools.Method(
typeof(MethodPatchFactory_Test),
nameof(DispatcherVoid));
MethodAccess access = new MethodAccess(method);
DynamicMethod prefix = MethodPatchFactory.GeneratePrefix(
access,
dispatcher,
EPatchBehaviour.AlwaysCallOriginal);
// Call
object ret = prefix.Invoke(m_Foo, new object[] { m_Foo, 42, 43.0f, 44.0 });
Assert.IsType <bool>(ret);
Assert.True((bool)ret); // AlwaysCallOriginal
}
private void ArgumentsAreForwarded()
{
// Generate prefix for ThreeArgs
MethodInfo method = AccessTools.Method(typeof(Foo), nameof(Foo.ThreeArgs));
MethodInfo dispatcher = AccessTools.Method(
typeof(MethodPatchFactory_Test),
nameof(DispatcherCallOriginal));
MethodAccess access = new MethodAccess(method);
DynamicMethod prefix = MethodPatchFactory.GeneratePrefix(
access,
dispatcher,
EPatchBehaviour.NeverCallOriginal);
// Call
int iArg = 42;
float fArg = 43.0f;
double dArg = 44.0;
object ret = prefix.Invoke(m_Foo, new object[] { m_Foo, iArg, fArg, dArg });
Assert.IsType <bool>(ret);
Assert.False((bool)ret); // NeverCallOriginal
Assert.Single(m_DispatcherCalls);
Assert.NotNull(m_DispatcherCalls[0]);
Assert.Same(access, m_DispatcherCalls[0]);
// Verify original was called
Assert.Single(m_Foo.CallHistory);
Assert.Equal(Foo.EMethod.ThreeArgs, m_Foo.CallHistory[0]);
Assert.Single(m_Foo.ArgsHistory);
Assert.Equal(3, m_Foo.ArgsHistory[0].Length);
// Verify individual args where forwarded
Assert.NotNull(m_Foo.ArgsHistory[0][0]);
Assert.IsType <int>(m_Foo.ArgsHistory[0][0]);
Assert.Equal(iArg, (int)m_Foo.ArgsHistory[0][0]);
Assert.NotNull(m_Foo.ArgsHistory[0][1]);
Assert.IsType <float>(m_Foo.ArgsHistory[0][1]);
Assert.Equal(fArg, (float)m_Foo.ArgsHistory[0][1]);
Assert.NotNull(m_Foo.ArgsHistory[0][2]);
Assert.IsType <double>(m_Foo.ArgsHistory[0][2]);
Assert.Equal(dArg, (double)m_Foo.ArgsHistory[0][2]);
}
private void GeneratePrefixForVoidDispatcherWorks()
{
// Generate prefix for SingleArg
MethodInfo method = AccessTools.Method(typeof(Foo), nameof(Foo.SingleArg));
MethodInfo dispatcher = AccessTools.Method(
typeof(MethodPatchFactory_Test),
nameof(DispatcherVoid));
MethodAccess access = new MethodAccess(method);
DynamicMethod prefix = MethodPatchFactory.GeneratePrefix(
access,
dispatcher,
EPatchBehaviour.AlwaysCallOriginal);
// Call
object ret = prefix.Invoke(m_Foo, new object[] { m_Foo, 42 });
Assert.IsType <bool>(ret);
Assert.True((bool)ret); // AlwaysCallOriginal
Assert.Single(m_DispatcherCalls);
Assert.NotNull(m_DispatcherCalls[0]);
Assert.Same(access, m_DispatcherCalls[0]);
}