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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 FieldDataFlow
{
public static void Main ()
{
var instance = new FieldDataFlow ();
instance.ReadFromInstanceField ();
instance.WriteToInstanceField ();
instance.ReadFromStaticField ();
instance.WriteToStaticField ();
instance.ReadFromInstanceFieldOnADifferentClass ();
instance.WriteToInstanceFieldOnADifferentClass ();
instance.ReadFromStaticFieldOnADifferentClass ();
instance.WriteToStaticFieldOnADifferentClass ();
instance.WriteUnknownValue ();
WriteCapturedField.Test ();
_ = _annotationOnWrongType;
TestStringEmpty ();
WriteArrayField.Test ();
AccessReturnedInstanceField.Test ();
}
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
Type _typeWithPublicParameterlessConstructor;
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
static Type _staticTypeWithPublicParameterlessConstructor;
static Type _staticTypeWithoutRequirements;
[ExpectedWarning ("IL2097", nameof (_annotationOnWrongType))]
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicFields)]
static object _annotationOnWrongType;
[ExpectedWarning ("IL2077", nameof (RequirePublicConstructors),
"_typeWithPublicParameterlessConstructor", "type", "RequirePublicConstructors(Type)")]
[ExpectedWarning ("IL2077", nameof (RequireNonPublicConstructors))]
private void ReadFromInstanceField ()
{
RequirePublicParameterlessConstructor (_typeWithPublicParameterlessConstructor);
RequirePublicConstructors (_typeWithPublicParameterlessConstructor);
RequireNonPublicConstructors (_typeWithPublicParameterlessConstructor);
RequireNothing (_typeWithPublicParameterlessConstructor);
}
[ExpectedWarning ("IL2074", nameof (FieldDataFlow) + "." + nameof (_typeWithPublicParameterlessConstructor), nameof (GetUnknownType))]
[ExpectedWarning ("IL2074", nameof (FieldDataFlow) + "." + nameof (_typeWithPublicParameterlessConstructor), nameof (GetTypeWithNonPublicConstructors))]
private void WriteToInstanceField ()
{
_typeWithPublicParameterlessConstructor = GetTypeWithPublicParameterlessConstructor ();
_typeWithPublicParameterlessConstructor = GetTypeWithPublicConstructors ();
_typeWithPublicParameterlessConstructor = GetTypeWithNonPublicConstructors ();
_typeWithPublicParameterlessConstructor = GetUnknownType ();
}
[ExpectedWarning ("IL2077", nameof (RequirePublicConstructors))]
[ExpectedWarning ("IL2077", nameof (RequireNonPublicConstructors))]
private void ReadFromInstanceFieldOnADifferentClass ()
{
var store = new TypeStore ();
RequirePublicParameterlessConstructor (store._typeWithPublicParameterlessConstructor);
RequirePublicConstructors (store._typeWithPublicParameterlessConstructor);
RequireNonPublicConstructors (store._typeWithPublicParameterlessConstructor);
RequireNothing (store._typeWithPublicParameterlessConstructor);
}
[ExpectedWarning ("IL2074", nameof (TypeStore) + "." + nameof (TypeStore._typeWithPublicParameterlessConstructor), nameof (GetUnknownType))]
[ExpectedWarning ("IL2074", nameof (TypeStore) + "." + nameof (TypeStore._typeWithPublicParameterlessConstructor), nameof (GetTypeWithNonPublicConstructors))]
private void WriteToInstanceFieldOnADifferentClass ()
{
var store = new TypeStore ();
store._typeWithPublicParameterlessConstructor = GetTypeWithPublicParameterlessConstructor ();
store._typeWithPublicParameterlessConstructor = GetTypeWithPublicConstructors ();
store._typeWithPublicParameterlessConstructor = GetTypeWithNonPublicConstructors ();
store._typeWithPublicParameterlessConstructor = GetUnknownType ();
}
[ExpectedWarning ("IL2077", nameof (RequirePublicConstructors))]
[ExpectedWarning ("IL2077", nameof (RequireNonPublicConstructors))]
private void ReadFromStaticField ()
{
RequirePublicParameterlessConstructor (_staticTypeWithPublicParameterlessConstructor);
RequirePublicConstructors (_staticTypeWithPublicParameterlessConstructor);
RequireNonPublicConstructors (_staticTypeWithPublicParameterlessConstructor);
RequireNothing (_staticTypeWithPublicParameterlessConstructor);
}
[ExpectedWarning ("IL2074", nameof (FieldDataFlow) + "." + nameof (_staticTypeWithPublicParameterlessConstructor), nameof (GetUnknownType))]
[ExpectedWarning ("IL2074", nameof (FieldDataFlow) + "." + nameof (_staticTypeWithPublicParameterlessConstructor), nameof (GetTypeWithNonPublicConstructors))]
[ExpectedWarning ("IL2079", nameof (FieldDataFlow) + "." + nameof (_staticTypeWithPublicParameterlessConstructor), nameof (_staticTypeWithoutRequirements))]
private void WriteToStaticField ()
{
_staticTypeWithPublicParameterlessConstructor = GetTypeWithPublicParameterlessConstructor ();
_staticTypeWithPublicParameterlessConstructor = GetTypeWithPublicConstructors ();
_staticTypeWithPublicParameterlessConstructor = GetTypeWithNonPublicConstructors ();
_staticTypeWithPublicParameterlessConstructor = GetUnknownType ();
_staticTypeWithPublicParameterlessConstructor = _staticTypeWithoutRequirements;
}
[ExpectedWarning ("IL2077", nameof (RequirePublicConstructors))]
[ExpectedWarning ("IL2077", nameof (RequireNonPublicConstructors))]
private void ReadFromStaticFieldOnADifferentClass ()
{
RequirePublicParameterlessConstructor (TypeStore._staticTypeWithPublicParameterlessConstructor);
RequirePublicConstructors (TypeStore._staticTypeWithPublicParameterlessConstructor);
RequireNonPublicConstructors (TypeStore._staticTypeWithPublicParameterlessConstructor);
RequireNothing (TypeStore._staticTypeWithPublicParameterlessConstructor);
}
[ExpectedWarning ("IL2074", nameof (TypeStore) + "." + nameof (TypeStore._staticTypeWithPublicParameterlessConstructor), nameof (GetUnknownType))]
[ExpectedWarning ("IL2074", nameof (TypeStore) + "." + nameof (TypeStore._staticTypeWithPublicParameterlessConstructor), nameof (GetTypeWithNonPublicConstructors))]
private void WriteToStaticFieldOnADifferentClass ()
{
TypeStore._staticTypeWithPublicParameterlessConstructor = GetTypeWithPublicParameterlessConstructor ();
TypeStore._staticTypeWithPublicParameterlessConstructor = GetTypeWithPublicConstructors ();
TypeStore._staticTypeWithPublicParameterlessConstructor = GetTypeWithNonPublicConstructors ();
TypeStore._staticTypeWithPublicParameterlessConstructor = GetUnknownType ();
}
[ExpectedWarning ("IL2064", nameof (TypeStore) + "." + nameof (TypeStore._staticTypeWithPublicParameterlessConstructor))]
private void WriteUnknownValue ()
{
var array = new object[1];
array[0] = this.GetType ();
MakeArrayValuesUnknown (array);
TypeStore._staticTypeWithPublicParameterlessConstructor = (Type) array[0];
static void MakeArrayValuesUnknown (object[] array)
{
}
}
private static void TestStringEmpty ()
{
RequirePublicMethods (string.Empty);
}
class WriteCapturedField
{
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.All)]
static Type field;
[ExpectedWarning ("IL2074", nameof (GetUnknownType), nameof (field))]
[ExpectedWarning ("IL2074", nameof (GetTypeWithPublicConstructors), nameof (field))]
static void TestNullCoalesce ()
{
field = GetUnknownType () ?? GetTypeWithPublicConstructors ();
}
[ExpectedWarning ("IL2074", nameof (GetUnknownType), nameof (field))]
static void TestNullCoalescingAssignment ()
{
field ??= GetUnknownType ();
}
[ExpectedWarning ("IL2074", nameof (GetUnknownType), nameof (field))]
[ExpectedWarning ("IL2074", nameof (GetTypeWithPublicConstructors), nameof (field))]
static void TestNullCoalescingAssignmentComplex ()
{
field ??= GetUnknownType () ?? GetTypeWithPublicConstructors ();
}
public static void Test ()
{
TestNullCoalesce ();
TestNullCoalescingAssignment ();
TestNullCoalescingAssignmentComplex ();
}
}
class AccessReturnedInstanceField
{
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicMethods)]
Type field;
static AccessReturnedInstanceField GetInstance ([DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.All)] Type unused) => null;
[ExpectedWarning ("IL2072", nameof (GetUnknownType), nameof (GetInstance),
ProducedBy = ProducedBy.Trimmer)] // https://github.com/dotnet/linker/issues/2832
[ExpectedWarning ("IL2077", nameof (field), nameof (DataFlowTypeExtensions.RequiresAll))]
static void TestRead ()
{
GetInstance (GetUnknownType ()).field.RequiresAll ();
}
[ExpectedWarning ("IL2072", nameof (GetUnknownType), nameof (GetInstance),
ProducedBy = ProducedBy.Trimmer)] // https://github.com/dotnet/linker/issues/2832
[ExpectedWarning ("IL2074", nameof (GetUnknownType), nameof (field))]
static void TestWrite ()
{
GetInstance (GetUnknownType ()).field = GetUnknownType ();
}
[ExpectedWarning ("IL2072", nameof (GetUnknownType), nameof (GetInstance),
ProducedBy = ProducedBy.Trimmer)] // https://github.com/dotnet/linker/issues/2832
[ExpectedWarning ("IL2074", nameof (GetUnknownType), nameof (field))]
static void TestNullCoalescingAssignment ()
{
GetInstance (GetUnknownType ()).field ??= GetUnknownType ();
}
public static void Test ()
{
TestRead ();
TestWrite ();
TestNullCoalescingAssignment ();
}
}
private static void RequirePublicMethods (
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicMethods)]
string s)
{
}
private static void RequirePublicParameterlessConstructor (
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
Type type)
{
}
private static void RequirePublicConstructors (
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicConstructors)]
Type type)
{
}
private static void RequireNonPublicConstructors (
[DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.NonPublicConstructors)]
Type type)
{
}
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
private static Type GetTypeWithPublicParameterlessConstructor ()
{
return null;
}
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicConstructors)]
private static Type GetTypeWithPublicConstructors ()
{
return null;
}
[return: DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.NonPublicConstructors)]
private static Type GetTypeWithNonPublicConstructors ()
{
return null;
}
private static Type GetUnknownType ()
{
return null;
}
private static void RequireNothing (Type type)
{
}
class TypeStore
{
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
public Type _typeWithPublicParameterlessConstructor;
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicParameterlessConstructor)]
public static Type _staticTypeWithPublicParameterlessConstructor;
}
class WriteArrayField
{
static Type[] ArrayField;
static void TestAssignment ()
{
ArrayField = Array.Empty<Type> ();
}
static void TestCoalescingAssignment ()
{
ArrayField ??= Array.Empty<Type> ();
}
public static void Test ()
{
TestAssignment ();
TestCoalescingAssignment ();
}
}
}
}
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