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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 Mono.Linker.Tests.Cases.Expectations.Metadata;
namespace Mono.Linker.Tests.Cases.DataFlow
{
[SkipKeptItemsValidation]
[ExpectedNoWarnings]
class MethodOutParameterDataFlow
{
public static void Main ()
{
Type t = null;
TestInitializedReadFromOutParameter ();
TestInitializedReadFromOutParameter_PassedTwice ();
TestUninitializedReadFromOutParameter ();
TestInitializedReadFromOutParameter_MismatchOnOutput ();
TestInitializedReadFromOutParameter_MismatchOnOutput_PassedTwice ();
TestInitializedReadFromOutParameter_MismatchOnInput ();
TestInitializedReadFromOutParameter_MismatchOnInput_PassedTwice ();
// Gets Fields
TestPassingOutParameter_Mismatch (out t);
t.RequiresPublicFields ();
// Gets Methods
TestPassingOutParameter (out t);
// Needs Methods and gets Methods
TestAssigningToOutParameter (t, out t);
t = typeof (int);
// Needs Fields and gets Methods
TestAssigningToOutParameter_Mismatch (t, out t);
}
static void TestInitializedReadFromOutParameter ()
{
Type typeWithMethods = null;
TryGetAnnotatedValue (out typeWithMethods);
typeWithMethods.RequiresPublicMethods ();
}
static void TestInitializedReadFromOutParameter_PassedTwice ()
{
Type typeWithMethods = null;
TryGetAnnotatedValueFromValue (typeWithMethods, out typeWithMethods);
typeWithMethods.RequiresPublicMethods ();
}
static void TestUninitializedReadFromOutParameter ()
{
Type typeWithMethods;
TryGetAnnotatedValue (out typeWithMethods);
typeWithMethods.RequiresPublicMethods ();
}
[ExpectedWarning ("IL2067", nameof (DataFlowTypeExtensions.RequiresPublicFields))]
static void TestInitializedReadFromOutParameter_MismatchOnOutput ()
{
Type typeWithMethods = null;
TryGetAnnotatedValue (out typeWithMethods);
typeWithMethods.RequiresPublicFields ();
}
// https://github.com/dotnet/linker/issues/2632
// This test should generate a warning since there's mismatch on annotations
[ExpectedWarning ("IL2067", nameof (DataFlowTypeExtensions.RequiresPublicFields))]
static void TestInitializedReadFromOutParameter_MismatchOnOutput_PassedTwice ()
{
Type typeWithMethods = null;
TryGetAnnotatedValueFromValue (typeWithMethods, out typeWithMethods);
typeWithMethods.RequiresPublicFields ();
}
// https://github.com/dotnet/linker/issues/2632
// This warning should not be generated, the value of typeWithMethods should have PublicMethods
// after the call with out parameter.
[ExpectedWarning ("IL2072", nameof (DataFlowTypeExtensions.RequiresPublicMethods), ProducedBy = ProducedBy.Analyzer)]
static void TestInitializedReadFromOutParameter_MismatchOnInput ()
{
Type typeWithMethods = GetTypeWithFields ();
// No warning on out parameter
TryGetAnnotatedValue (out typeWithMethods);
typeWithMethods.RequiresPublicMethods ();
}
[ExpectedWarning ("IL2072", nameof (TryGetAnnotatedValueFromValue))]
// https://github.com/dotnet/linker/issues/2632
// This warning should not be generated, the value of typeWithMethods should have PublicMethods
// after the call with out parameter.
[ExpectedWarning ("IL2072", nameof (DataFlowTypeExtensions.RequiresPublicMethods), ProducedBy = ProducedBy.Analyzer)]
static void TestInitializedReadFromOutParameter_MismatchOnInput_PassedTwice ()
{
Type typeWithMethods = GetTypeWithFields ();
// Warn on first parameter only, not on out parameter
TryGetAnnotatedValueFromValue (typeWithMethods, out typeWithMethods);
typeWithMethods.RequiresPublicMethods ();
}
static void TestPassingOutParameter ([DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicMethods)] out Type typeWithMethods)
{
TryGetAnnotatedValue (out typeWithMethods);
}
[ExpectedWarning ("IL2067", "typeWithFields", nameof (TryGetAnnotatedValue))]
static void TestPassingOutParameter_Mismatch ([DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicFields)] out Type typeWithFields)
{
TryGetAnnotatedValue (out typeWithFields);
}
static void TestAssigningToOutParameter (
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicMethods)] Type inputTypeWithMethods,
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicMethods)] out Type outputTypeWithMethods)
{
outputTypeWithMethods = inputTypeWithMethods;
}
[ExpectedWarning ("IL2067", "inputTypeWithFields", "outputTypeWithMethods")]
static void TestAssigningToOutParameter_Mismatch (
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicFields)] Type inputTypeWithFields,
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicMethods)] out Type outputTypeWithMethods)
{
outputTypeWithMethods = inputTypeWithFields;
}
static bool TryGetAnnotatedValue ([DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicMethods)] out Type typeWithMethods)
{
typeWithMethods = null;
return false;
}
static bool TryGetAnnotatedValueFromValue (
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicMethods)] Type inValue,
[DynamicallyAccessedMembers (DynamicallyAccessedMemberTypes.PublicMethods)] out Type typeWithMethods)
{
typeWithMethods = inValue;
return false;
}
[return: DynamicallyAccessedMembersAttribute (DynamicallyAccessedMemberTypes.PublicFields)]
static Type GetTypeWithFields () => null;
class TestType
{
}
}
}
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