Support projects with multiple target frameworks

[maca88]

No description provided.

[ngbrown]

So this is almost working (sorry about the note earlier that I was getting the same error). However, it is generating invalid code in one instance:

NHibernate.Test.DynamicProxyTests.PeVerifyFixture is having it's functions transformed from:

		[Test]
		public void VerifyClassWithPublicConstructor()
		{
#if NETCOREAPP2_0
			Assert.Ignore("Not applicable for NETCOREAPP2_0");
#else
			var factory = new ProxyFactory(new SavingProxyAssemblyBuilder(assemblyName));
			var proxyType = factory.CreateProxyType(typeof(ClassWithPublicDefaultConstructor), null);

			wasCalled = false;
			Activator.CreateInstance(proxyType);

			Assert.That(wasCalled);
			new PeVerifier(assemblyFileName).AssertIsValid();
#endif
		}

to

		[Test]
		public Task VerifyClassWithPublicConstructorAsync()
		{
			try
			{
#if NETCOREAPP2_0
			Assert.Ignore("Not applicable for NETCOREAPP2_0");
#else
				var factory = new ProxyFactory(new SavingProxyAssemblyBuilder(assemblyName));
				var proxyType = factory.CreateProxyType(typeof(ClassWithPublicDefaultConstructor), null);

				wasCalled = false;
				Activator.CreateInstance(proxyType);

				Assert.That(wasCalled);
				return new PeVerifier(assemblyFileName).AssertIsValidAsync();
			}
			catch (Exception ex)
			{
				return Task.FromException<object>(ex);
			}
#endif
		}

The curly braces of the try/catch are unbalanced in the generated output. The compiler generates the following error:

10>Async\DynamicProxyTests\PeVerifyFixture.cs(53,3,53,4): error CS1524: Expected catch or finally

I would expect something like this:

		[Test]
		public Task VerifyClassWithPublicConstructorAsync()
		{
			try
			{
#if NETCOREAPP2_0
				Assert.Ignore("Not applicable for NETCOREAPP2_0");
				return Task.CompletedTask;
#else
				var factory = new ProxyFactory(new SavingProxyAssemblyBuilder(assemblyName));
				var proxyType = factory.CreateProxyType(typeof(ClassWithPublicDefaultConstructor), null);

				wasCalled = false;
				Activator.CreateInstance(proxyType);

				Assert.That(wasCalled);
				return new PeVerifier(assemblyFileName).AssertIsValidAsync();
#endif
			}
			catch (Exception ex)
			{
				return Task.FromException<object>(ex);
			}
		}

[maca88]

With the version 0.8.1 the issue is now fixed. Keep in mind that the generator is not able to transform an async invocation inside a disabled directive, it will only make the code to be compiled (example).