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// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license 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.Helpers;
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 ExpectedWarning attributes.
[SkipKeptItemsValidation]
[ExpectedNoWarnings]
public class GetTypeDataFlow
{
public static void Main ()
{
TestPublicParameterlessConstructor ();
TestPublicConstructors ();
TestConstructors ();
TestNull ();
TestNoValue ();
TestUnknownType ();
TestTypeNameFromParameter (null);
TestTypeNameFromField ();
TestMultipleConstantValues ();
TestMultipleMixedValues ();
TestStringEmpty ();
TypeWithWarnings.Test ();
OverConstTypeName.Test ();
// TODO:
// Test multi-value returns
// Type.GetType over a constant and a param
// Type.GetType over two params
}
[ExpectedWarning ("IL2072", nameof (DataFlowTypeExtensions.RequiresPublicConstructors))]
[ExpectedWarning ("IL2072", nameof (DataFlowTypeExtensions.RequiresNonPublicConstructors))]
static void TestPublicParameterlessConstructor ()
{
Type type = Type.GetType (GetStringTypeWithPublicParameterlessConstructor ());
type.RequiresPublicParameterlessConstructor ();
type.RequiresPublicConstructors ();
type.RequiresNonPublicConstructors ();
type.RequiresNone ();
}
[ExpectedWarning ("IL2072", nameof (DataFlowTypeExtensions.RequiresNonPublicConstructors))]
static void TestPublicConstructors ()
{
Type type = Type.GetType (GetStringTypeWithPublicConstructors ());
type.RequiresPublicParameterlessConstructor ();
type.RequiresPublicConstructors ();
type.RequiresNonPublicConstructors ();
type.RequiresNone ();
}
[ExpectedWarning ("IL2072", nameof (DataFlowTypeExtensions.RequiresPublicParameterlessConstructor))]
[ExpectedWarning ("IL2072", nameof (DataFlowTypeExtensions.RequiresPublicConstructors))]
static void TestConstructors ()
{
Type type = Type.GetType (GetStringTypeWithNonPublicConstructors ());
type.RequiresPublicParameterlessConstructor ();
type.RequiresPublicConstructors ();
type.RequiresNonPublicConstructors ();
type.RequiresNone ();
}
static void TestNull ()
{
// GetType(null) throws at runtime, so we "give up" on analysis
Type.GetType (null).RequiresAll ();
}
static void TestNoValue ()
{
Type t = null;
// null.AssemblyQualifiedName throws at runtime, so we "give up" on analysis
string noValue = t.AssemblyQualifiedName;
Type.GetType (noValue).RequiresAll ();
}
[ExpectedWarning ("IL2057", nameof (GetType))]
static void TestUnknownType ()
{
Type type = Type.GetType (GetStringUnknownType ());
}
[ExpectedWarning ("IL2072", nameof (DataFlowTypeExtensions.RequiresPublicConstructors))]
static void TestTypeNameFromParameter (
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
string typeName)
{
Type.GetType (typeName).RequiresPublicConstructors ();
}
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
static string _typeNameWithPublicParameterlessConstructor;
[ExpectedWarning ("IL2072", nameof (DataFlowTypeExtensions.RequiresPublicConstructors))]
static void TestTypeNameFromField ()
{
Type.GetType (_typeNameWithPublicParameterlessConstructor).RequiresPublicConstructors ();
}
static int _switchOnField;
static void TestMultipleConstantValues ()
{
string typeName = null;
switch (_switchOnField) {
case 0: // valid
typeName = "Mono.Linker.Tests.Cases.DataFlow.GetTypeDataFlow";
break;
case 1: // null
typeName = null;
break;
case 2: // invalid
typeName = "UnknownType";
break;
case 3: // invalid second
typeName = "AnotherUnknownType";
break;
}
Type.GetType (typeName);
}
static void TestStringEmpty ()
{
Type.GetType (string.Empty);
}
[ExpectedWarning ("IL2072", nameof (DataFlowTypeExtensions.RequiresNonPublicConstructors), nameof (Type.GetType))]
[ExpectedWarning ("IL2057", "System.Type.GetType(String)")]
static void TestMultipleMixedValues ()
{
string typeName = null;
switch (_switchOnField) {
case 0:
typeName = GetStringTypeWithPublicParameterlessConstructor ();
break;
case 1:
typeName = GetStringTypeWithNonPublicConstructors ();
break;
case 2:
typeName = "Mono.Linker.Tests.Cases.DataFlow.GetTypeDataFlow";
break;
case 3:
typeName = GetStringUnknownType ();
break;
}
Type.GetType (typeName).RequiresNonPublicConstructors ();
}
class TypeWithWarnings
{
[RequiresUnreferencedCode ("--Method1--")]
public void Method1 () { }
[RequiresUnreferencedCode ("--Method2--")]
public void Method2 () { }
// https://github.com/dotnet/linker/issues/2273
[ExpectedWarning ("IL2026", "--Method1--", ProducedBy = ProducedBy.Trimmer | ProducedBy.NativeAot)]
[ExpectedWarning ("IL2026", "--Method2--", ProducedBy = ProducedBy.Trimmer | ProducedBy.NativeAot)]
public static void Test ()
{
Type.GetType ("Mono.Linker.Tests.Cases.DataFlow." + nameof (GetTypeDataFlow) + "+" + nameof (TypeWithWarnings)).RequiresPublicMethods ();
}
}
class OverConstTypeName
{
private const string s_ConstTypeName = "Mono.Linker.Tests.Cases.DataFlow." + nameof (GetTypeDataFlow) + "+" + nameof (OverConstTypeName);
[RequiresUnreferencedCode ("--Method1--")]
public void Method1 () { }
// https://github.com/dotnet/linker/issues/2273
[ExpectedWarning ("IL2026", "--Method1--", ProducedBy = ProducedBy.Trimmer | ProducedBy.NativeAot)]
public static void Test ()
{
Type.GetType (s_ConstTypeName).RequiresPublicMethods ();
}
}
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
private static string GetStringTypeWithPublicParameterlessConstructor ()
{
return null;
}
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicConstructors)]
private static string GetStringTypeWithPublicConstructors ()
{
return null;
}
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.NonPublicConstructors)]
private static string GetStringTypeWithNonPublicConstructors ()
{
return null;
}
private static string GetStringUnknownType ()
{
return null;
}
}
}
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