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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Text;
using Mono.Linker.Tests.Cases.Expectations.Assertions;
using Mono.Linker.Tests.Cases.Expectations.Metadata;
namespace Mono.Linker.Tests.Cases.DataFlow
{
// Note: this test's goal is to validate that the product correctly reports unrecognized patterns
// - so the main validation is done by the UnrecognizedReflectionAccessPattern attributes.
[SkipKeptItemsValidation]
public class MethodReturnParameterDataFlow
{
public static void Main ()
{
var instance = new MethodReturnParameterDataFlow ();
// Validation that assigning value to the return value is verified
NoRequirements ();
instance.ReturnPublicParameterlessConstructor (typeof (TestType), typeof (TestType), typeof (TestType));
instance.ReturnPublicParameterlessConstructorFromUnknownType (null);
instance.ReturnPublicParameterlessConstructorFromConstant ();
instance.ReturnPublicParameterlessConstructorFromNull ();
instance.ReturnPublicConstructorsFailure (null);
instance.ReturnNonPublicConstructorsFailure (null);
instance.ReturnUnknownValue ();
// Validation that value comming from return value of a method is correctly propagated
instance.PropagateReturnPublicParameterlessConstructor ();
instance.PropagateReturnPublicParameterlessConstructorFromConstant ();
instance.PropagateReturnToReturn (0);
}
private static Type NoRequirements ()
{
return typeof (TestType);
}
[UnrecognizedReflectionAccessPattern (typeof (MethodReturnParameterDataFlow), nameof (ReturnPublicParameterlessConstructor),
new Type[] { typeof (Type), typeof (Type), typeof (Type) }, returnType: typeof (Type), messageCode: "IL2068")]
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
private Type ReturnPublicParameterlessConstructor (
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
Type publicParameterlessConstructorType,
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicConstructors)]
Type publicConstructorsType,
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.NonPublicConstructors)]
Type nonPublicConstructorsType)
{
switch (GetHashCode ()) {
case 1:
return publicParameterlessConstructorType;
case 2:
return publicConstructorsType;
case 3:
return nonPublicConstructorsType;
case 4:
return typeof (TestType);
default:
return null;
}
}
[UnrecognizedReflectionAccessPattern (typeof (MethodReturnParameterDataFlow), nameof (ReturnPublicParameterlessConstructorFromUnknownType),
new Type[] { typeof (Type) }, returnType: typeof (Type), messageCode: "IL2068")]
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
private Type ReturnPublicParameterlessConstructorFromUnknownType (Type unknownType)
{
return unknownType;
}
[RecognizedReflectionAccessPattern]
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
private Type ReturnPublicParameterlessConstructorFromConstant ()
{
return typeof (TestType);
}
[RecognizedReflectionAccessPattern]
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
private Type ReturnPublicParameterlessConstructorFromNull ()
{
return null;
}
private Type ReturnTypeWithNoRequirements ()
{
return null;
}
// Validate error message when insufficiently annotated value is returned from a method
[UnrecognizedReflectionAccessPattern (typeof (MethodReturnParameterDataFlow), nameof (ReturnPublicConstructorsFailure),
new Type[] { typeof (Type) }, returnType: typeof (Type),
messageCode: "IL2068", message: new string[] {
"publicParameterlessConstructorType",
"MethodReturnParameterDataFlow.ReturnPublicConstructorsFailure",
"MethodReturnParameterDataFlow.ReturnPublicConstructorsFailure" })]
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicConstructors)]
private Type ReturnPublicConstructorsFailure (
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
Type publicParameterlessConstructorType)
{
return publicParameterlessConstructorType;
}
[UnrecognizedReflectionAccessPattern (typeof (MethodReturnParameterDataFlow), nameof (ReturnNonPublicConstructorsFailure),
new Type[] { typeof (Type) }, returnType: typeof (Type), messageCode: "IL2068")]
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.NonPublicConstructors)]
private Type ReturnNonPublicConstructorsFailure (
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicConstructors)]
Type publicConstructorsType)
{
return publicConstructorsType;
}
[UnrecognizedReflectionAccessPattern (typeof (MethodReturnParameterDataFlow), nameof (ReturnUnknownValue),
new Type[] { }, returnType: typeof (Type),
messageCode: "IL2063", message: nameof (ReturnUnknownValue))]
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicConstructors)]
private Type ReturnUnknownValue ()
{
var array = new object[1];
array[0] = this.GetType ();
return (Type) array[0];
}
[UnrecognizedReflectionAccessPattern (typeof (MethodReturnParameterDataFlow), nameof (RequirePublicConstructors), new Type[] { typeof (Type) }, messageCode: "IL2072")]
[UnrecognizedReflectionAccessPattern (typeof (MethodReturnParameterDataFlow), nameof (RequireNonPublicConstructors), new Type[] { typeof (Type) }, messageCode: "IL2072")]
private void PropagateReturnPublicParameterlessConstructor ()
{
Type t = ReturnPublicParameterlessConstructor (typeof (TestType), typeof (TestType), typeof (TestType));
PublicParameterlessConstructorConstructor (t);
RequirePublicConstructors (t);
RequireNonPublicConstructors (t);
RequireNothing (t);
}
[UnrecognizedReflectionAccessPattern (typeof (MethodReturnParameterDataFlow), nameof (RequirePublicConstructors), new Type[] { typeof (Type) }, messageCode: "IL2072")]
[UnrecognizedReflectionAccessPattern (typeof (MethodReturnParameterDataFlow), nameof (RequireNonPublicConstructors), new Type[] { typeof (Type) }, messageCode: "IL2072")]
private void PropagateReturnPublicParameterlessConstructorFromConstant ()
{
Type t = ReturnPublicParameterlessConstructorFromConstant ();
PublicParameterlessConstructorConstructor (t);
RequirePublicConstructors (t);
RequireNonPublicConstructors (t);
RequireNothing (t);
}
[UnrecognizedReflectionAccessPattern (typeof (MethodReturnParameterDataFlow), nameof (PropagateReturnToReturn), new Type[] { typeof (int) }, returnType: typeof (Type),
messageCode: "IL2073", message: new string[] {
nameof (ReturnTypeWithNoRequirements),
nameof (PropagateReturnToReturn)
})]
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
private Type PropagateReturnToReturn (int n)
{
switch (n) {
case 0:
return ReturnPublicParameterlessConstructorFromConstant ();
case 1:
return ReturnTypeWithNoRequirements ();
}
return null;
}
private static void PublicParameterlessConstructorConstructor (
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
Type type)
{
}
private static void RequirePublicConstructors (
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicConstructors)]
Type type)
{
}
private static void RequireNonPublicConstructors (
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.NonPublicConstructors)]
Type type)
{
}
private static void RequireNothing (Type type)
{
}
class TestType
{
public TestType () { }
}
}
}
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