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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.Diagnostics.CodeAnalysis;
using Mono.Linker.Tests.Cases.Expectations.Assertions;
using Mono.Linker.Tests.Cases.Expectations.Helpers;
using DAM = System.Diagnostics.CodeAnalysis.DynamicallyAccessedMembersAttribute;
using DAMT = System.Diagnostics.CodeAnalysis.DynamicallyAccessedMemberTypes;
namespace Mono.Linker.Tests.Cases.DataFlow
{
[ExpectedNoWarnings]
class NullableAnnotations
{
[Kept]
struct TestType
{
}
// This only gets annotations through Nullable<TestStructPassedInsideNullable>
[Kept]
struct TestStructPassedInsideNullable
{
[Kept]
[KeptBackingField]
public string FirstName { [Kept] get; [Kept] set; }
[Kept]
[KeptBackingField]
public string LastName { [Kept] get; [Kept] set; }
}
[Kept]
struct TestStructWithRucMethod
{
[Kept]
[KeptAttributeAttribute (typeof (RequiresUnreferencedCodeAttribute))]
[RequiresUnreferencedCode ("message")]
void MethodWithRuc () { }
}
[Kept]
public static void Main ()
{
NullableOfAnnotatedGenericParameterRequiresPublicProperties<TestType> ();
Type _ = ReturnUnderlyingTypeThatRequiresProperties<Nullable<TestType>> (new ());
TestRequireRucMethodThroughNullable ();
DamOnNullableKeepsUnderlyingMembers ();
UnderlyingTypeOfCreatedNullableOfAnnotatedTRequiresPublicProperties<TestType> ();
RequirePublicFieldsOnGenericParam<Nullable<StructWithFieldsReferencedThroughDamOnNullable>> ();
NullableOfUnannotatedGenericParamPassedAsGenericParamRequiresPublicFields<StructWithFieldsReferencedThroughDamOnNullable> ();
NullableOfAnnotatedGenericParamPassedAsGenericParamRequiresPublicFields<StructWithFieldsReferencedThroughDamOnNullable> ();
TestGetUnderlyingTypeOnStructs ();
TestAnnotationsOnNullableKeepsMembersOnUnderlyingType ();
TestGetUnderlyingTypeOfCreatedNullableOnStructs ();
ImproperMakeGenericTypeDoesntWarn ();
MakeGenericTypeWithUnknownValue (new object[2] { 1, 2 });
}
[Kept]
static void ImproperMakeGenericTypeDoesntWarn ()
{
typeof (Nullable<>).MakeGenericType (typeof (Nullable<int>)).GetProperties (); // No warning - we treat the cases where reflection throws as "no value".
typeof (Nullable<>).MakeGenericType (typeof (int[])).GetProperties (); // No warning - we treat the cases where reflection throws as "no value".
}
[Kept]
[ExpectedWarning ("IL2026", "message")]
static void RequireAllFromUnderlyingTypeWithMethodWithRUC ()
{
var T = typeof (Nullable<TestStructWithRucMethod>);
var uT = Nullable.GetUnderlyingType (T);
uT.RequiresAll ();
}
[Kept]
[ExpectedWarning ("IL2026", "message")]
static void RequireAllFromNullableOfTypeWithMethodWithRuc ()
{
typeof (Nullable<TestStructWithRucMethod>).RequiresAll ();
}
[Kept]
[ExpectedWarning ("IL2026", "message")]
static void RequireAllFromMadeGenericNullableOfTypeWithMethodWithRuc ()
{
typeof (Nullable<>).MakeGenericType (typeof (TestStructWithRucMethod)).RequiresAll ();
}
[Kept]
static void TestRequireRucMethodThroughNullable ()
{
RequireAllFromUnderlyingTypeWithMethodWithRUC ();
RequireAllFromNullableOfTypeWithMethodWithRuc ();
RequireAllFromMadeGenericNullableOfTypeWithMethodWithRuc ();
}
[Kept]
static void UnderlyingTypeOfAnnotatedGenericParameterRequiresPublicProperties<[KeptAttributeAttribute (typeof (DAM))][DAM (DAMT.PublicProperties)] TNullable> ()
{
Nullable.GetUnderlyingType (typeof (TNullable)).RequiresPublicProperties ();
}
[Kept]
static void UnderlyingTypeOfAnnotatedParameterRequiresPublicProperties ([KeptAttributeAttribute (typeof (DAM))][DAM (DAMT.PublicProperties)] Type tNullable)
{
Nullable.GetUnderlyingType (tNullable).RequiresPublicProperties ();
}
[Kept]
[ExpectedWarning ("IL2067")]
static void UnderlyingTypeOfUnannotatedParameterRequiresPublicProperties (Type tNullable)
{
Nullable.GetUnderlyingType (tNullable).RequiresPublicProperties ();
}
[Kept]
[ExpectedWarning ("IL2087")]
static void UnderlyingTypeOfUnannotatedGenericParameterRequiresProperties<TNullable> ()
{
Nullable.GetUnderlyingType (typeof (TNullable)).RequiresPublicProperties ();
}
[Kept]
static void NullableOfAnnotatedGenericParameterRequiresPublicProperties<[KeptAttributeAttribute (typeof (DAM))][DAM (DAMT.PublicProperties)] T> () where T : struct
{
Nullable.GetUnderlyingType (typeof (Nullable<T>)).RequiresPublicProperties ();
}
[Kept]
[ExpectedWarning ("IL2087")]
static void NullableOfUnannotatedGenericParameterRequiresPublicProperties<T> () where T : struct
{
Nullable.GetUnderlyingType (typeof (Nullable<T>)).RequiresPublicProperties ();
}
[Kept]
static void MakeGenericNullableOfAnnotatedParameterRequiresPublicProperties ([KeptAttributeAttribute (typeof (DAM))][DAM (DAMT.PublicProperties)] Type t)
{
Nullable.GetUnderlyingType (typeof (Nullable<>).MakeGenericType (t)).RequiresPublicProperties ();
}
[Kept]
[ExpectedWarning ("IL2067")]
static void MakeGenericNullableOfUnannotatedParameterRequiresPublicProperties (Type t)
{
Nullable.GetUnderlyingType (typeof (Nullable<>).MakeGenericType (t)).RequiresPublicProperties ();
}
[Kept]
static void MakeGenericNullableOfAnnotatedGenericParameterRequiresPublicProperties<[KeptAttributeAttribute (typeof (DAM))][DAM (DAMT.PublicProperties)] T> ()
{
Nullable.GetUnderlyingType (typeof (Nullable<>).MakeGenericType (typeof (T))).RequiresPublicProperties ();
}
[Kept]
[ExpectedWarning ("IL2087")]
static void MakeGenericNullableOfUnannotatedGenericParameterRequiresPublicProperties<T> ()
{
Nullable.GetUnderlyingType (typeof (Nullable<>).MakeGenericType (typeof (T))).RequiresPublicProperties ();
}
[Kept]
static void TestGetUnderlyingTypeOnStructs ()
{
UnderlyingTypeOfAnnotatedParameterRequiresPublicProperties (typeof (TestType));
UnderlyingTypeOfAnnotatedGenericParameterRequiresPublicProperties<TestType> ();
UnderlyingTypeOfUnannotatedParameterRequiresPublicProperties (typeof (TestType));
UnderlyingTypeOfUnannotatedGenericParameterRequiresProperties<TestType> ();
}
[Kept]
static void TestAnnotationsOnNullableKeepsMembersOnUnderlyingType ()
{
UnderlyingTypeOfAnnotatedParameterRequiresPublicProperties (typeof (Nullable<TestStructPassedInsideNullable>));
UnderlyingTypeOfAnnotatedGenericParameterRequiresPublicProperties<Nullable<TestStructPassedInsideNullable>> ();
UnderlyingTypeOfUnannotatedParameterRequiresPublicProperties (typeof (Nullable<TestStructPassedInsideNullable>));
UnderlyingTypeOfUnannotatedGenericParameterRequiresProperties<Nullable<TestStructPassedInsideNullable>> ();
}
[Kept]
static void TestGetUnderlyingTypeOfCreatedNullableOnStructs ()
{
MakeGenericNullableOfAnnotatedParameterRequiresPublicProperties (typeof (TestType));
MakeGenericNullableOfAnnotatedGenericParameterRequiresPublicProperties<TestType> ();
NullableOfUnannotatedGenericParameterRequiresPublicProperties<TestType> ();
MakeGenericNullableOfUnannotatedParameterRequiresPublicProperties (typeof (TestType));
MakeGenericNullableOfUnannotatedGenericParameterRequiresPublicProperties<TestType> ();
NullableOfUnannotatedGenericParameterRequiresPublicProperties<TestType> ();
}
[Kept]
[return: DynamicallyAccessedMembers (DAMT.PublicProperties)]
[return: KeptAttributeAttribute (typeof (DAM))]
static Type ReturnUnderlyingTypeThatRequiresProperties<[KeptAttributeAttribute (typeof (DAM))][DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicProperties)] T> (T instance)
{
Type type = Nullable.GetUnderlyingType (typeof (T)) ?? typeof (T);
return type;
}
[Kept]
struct StructWithUnreferencedFields
{
[Kept]
public int field1;
[Kept]
public StructReferencedThroughDam s;
[KeptBackingField]
public int prop { get; set; }
}
[Kept]
struct StructReferencedThroughDam { }
[Kept]
static void DamOnNullableKeepsUnderlyingMembers ()
{
typeof (Nullable<StructWithUnreferencedFields>).RequiresPublicFields ();
}
[Kept]
static void UnderlyingTypeOfCreatedNullableOfAnnotatedTRequiresPublicProperties<[KeptAttributeAttribute (typeof (DAM))][DAM (DAMT.PublicProperties)] T> () where T : struct
{
Type t = typeof (Nullable<T>);
t = Nullable.GetUnderlyingType (t);
t.RequiresPublicProperties ();
}
[Kept]
struct StructWithFieldsReferencedThroughDamOnNullable
{
[Kept]
public int field;
public int method () { return 0; }
}
[Kept]
static void RequirePublicFieldsOnGenericParam<[KeptAttributeAttribute (typeof (DAM))][DAM (DAMT.PublicFields)] T> ()
{
}
[Kept]
[ExpectedWarning ("IL2091")]
static void NullableOfUnannotatedGenericParamPassedAsGenericParamRequiresPublicFields<T> () where T : struct
{
RequirePublicFieldsOnGenericParam<Nullable<T>> ();
}
[Kept]
static void NullableOfAnnotatedGenericParamPassedAsGenericParamRequiresPublicFields<[KeptAttributeAttribute (typeof (DAM))][DAM (DAMT.PublicFields)] T> () where T : struct
{
RequirePublicFieldsOnGenericParam<Nullable<T>> ();
}
[Kept]
[ExpectedWarning ("IL2075")]
static void MakeGenericTypeWithUnknownValue (object[] maybetypes)
{
Type[] types = new Type[] { maybetypes[0] as Type }; // Roundabout way to get UnknownValue - it is getting tricky to do that reliably
Type nullable = typeof (Nullable<>).MakeGenericType (types);
nullable.GetProperties (); // Must WARN
}
}
}
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