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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.Linq;
using Internal.TypeSystem;
using Xunit;
namespace TypeSystemTests
{
public class UniversalGenericFieldLayoutTests
{
TestTypeSystemContext _contextX86;
ModuleDesc _testModuleX86;
TestTypeSystemContext _contextX64;
ModuleDesc _testModuleX64;
TestTypeSystemContext _contextARM;
ModuleDesc _testModuleARM;
public UniversalGenericFieldLayoutTests()
{
// Architecture specific tests may use these contexts
_contextX64 = new TestTypeSystemContext(TargetArchitecture.X64);
var systemModuleX64 = _contextX64.CreateModuleForSimpleName("CoreTestAssembly");
_contextX64.SetSystemModule(systemModuleX64);
_testModuleX64 = systemModuleX64;
_contextARM = new TestTypeSystemContext(TargetArchitecture.ARM);
var systemModuleARM = _contextARM.CreateModuleForSimpleName("CoreTestAssembly");
_contextARM.SetSystemModule(systemModuleARM);
_testModuleARM = systemModuleARM;
_contextX86 = new TestTypeSystemContext(TargetArchitecture.X86);
var systemModuleX86 = _contextX86.CreateModuleForSimpleName("CoreTestAssembly");
_contextX86.SetSystemModule(systemModuleX86);
_testModuleX86 = systemModuleX86;
}
[Fact]
public void LayoutIntTests()
{
Assert.Throws<ArgumentException>(() => { return new LayoutInt(int.MinValue); });
Assert.Throws<ArgumentException>(() => { return new LayoutInt(-1); });
Assert.Equal(LayoutInt.Zero, new LayoutInt(0));
Assert.Equal(LayoutInt.One, new LayoutInt(1));
Assert.True(LayoutInt.Zero == new LayoutInt(0));
Assert.True(LayoutInt.One == new LayoutInt(1));
Assert.False(LayoutInt.Zero == new LayoutInt(1));
Assert.False(LayoutInt.One == new LayoutInt(0));
#pragma warning disable 1718 // Allow comparison to same variable
Assert.True(LayoutInt.Indeterminate == LayoutInt.Indeterminate);
#pragma warning restore 1718
Assert.False(LayoutInt.Zero != new LayoutInt(0));
Assert.False(LayoutInt.One != new LayoutInt(1));
Assert.True(LayoutInt.Zero != new LayoutInt(1));
Assert.True(LayoutInt.One != new LayoutInt(0));
#pragma warning disable 1718 // Allow comparison to same variable
Assert.False(LayoutInt.Indeterminate != LayoutInt.Indeterminate);
#pragma warning restore 1718
Assert.Equal(0, new LayoutInt(0).AsInt);
Assert.Equal(1, new LayoutInt(1).AsInt);
Assert.Equal(Int32.MaxValue, new LayoutInt(Int32.MaxValue).AsInt);
Assert.Throws<InvalidOperationException>(() => { return LayoutInt.Indeterminate.AsInt; });
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.Indeterminate + LayoutInt.Indeterminate);
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.One + LayoutInt.Indeterminate);
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.Indeterminate + LayoutInt.One);
Assert.Equal(new LayoutInt(2), LayoutInt.One + LayoutInt.One);
Assert.Throws<OverflowException>(() => { return new LayoutInt(int.MaxValue) + LayoutInt.One; });
Assert.Throws<OverflowException>(() => { return new LayoutInt(int.MaxValue) + LayoutInt.One; });
Assert.Equal(LayoutInt.One, LayoutInt.Max(LayoutInt.One, LayoutInt.Zero));
Assert.Equal(LayoutInt.One, LayoutInt.Max(LayoutInt.Zero, LayoutInt.One));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.Max(LayoutInt.Indeterminate, LayoutInt.Zero));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.Max(LayoutInt.Zero, LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.Max(LayoutInt.Indeterminate, LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Zero, LayoutInt.Min(LayoutInt.One, LayoutInt.Zero));
Assert.Equal(LayoutInt.Zero, LayoutInt.Min(LayoutInt.Zero, LayoutInt.One));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.Min(LayoutInt.Indeterminate, LayoutInt.Zero));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.Min(LayoutInt.Zero, LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.Min(LayoutInt.Indeterminate, LayoutInt.Indeterminate));
// AlignUp testing
Assert.Equal(new LayoutInt(0), LayoutInt.AlignUp(new LayoutInt(0), new LayoutInt(1)));
Assert.Equal(new LayoutInt(0), LayoutInt.AlignUp(new LayoutInt(0), new LayoutInt(2)));
Assert.Equal(new LayoutInt(0), LayoutInt.AlignUp(new LayoutInt(0), new LayoutInt(4)));
Assert.Equal(new LayoutInt(0), LayoutInt.AlignUp(new LayoutInt(0), new LayoutInt(8)));
Assert.Equal(new LayoutInt(1), LayoutInt.AlignUp(new LayoutInt(1), new LayoutInt(1)));
Assert.Equal(new LayoutInt(2), LayoutInt.AlignUp(new LayoutInt(2), new LayoutInt(1)));
Assert.Equal(new LayoutInt(3), LayoutInt.AlignUp(new LayoutInt(3), new LayoutInt(1)));
Assert.Equal(new LayoutInt(4), LayoutInt.AlignUp(new LayoutInt(4), new LayoutInt(1)));
Assert.Equal(new LayoutInt(5), LayoutInt.AlignUp(new LayoutInt(5), new LayoutInt(1)));
Assert.Equal(new LayoutInt(6), LayoutInt.AlignUp(new LayoutInt(6), new LayoutInt(1)));
Assert.Equal(new LayoutInt(7), LayoutInt.AlignUp(new LayoutInt(7), new LayoutInt(1)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(8), new LayoutInt(1)));
Assert.Equal(new LayoutInt(9), LayoutInt.AlignUp(new LayoutInt(9), new LayoutInt(1)));
Assert.Equal(new LayoutInt(10), LayoutInt.AlignUp(new LayoutInt(10), new LayoutInt(1)));
Assert.Equal(new LayoutInt(11), LayoutInt.AlignUp(new LayoutInt(11), new LayoutInt(1)));
Assert.Equal(new LayoutInt(12), LayoutInt.AlignUp(new LayoutInt(12), new LayoutInt(1)));
Assert.Equal(new LayoutInt(13), LayoutInt.AlignUp(new LayoutInt(13), new LayoutInt(1)));
Assert.Equal(new LayoutInt(14), LayoutInt.AlignUp(new LayoutInt(14), new LayoutInt(1)));
Assert.Equal(new LayoutInt(15), LayoutInt.AlignUp(new LayoutInt(15), new LayoutInt(1)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(16), new LayoutInt(1)));
Assert.Equal(new LayoutInt(2), LayoutInt.AlignUp(new LayoutInt(1), new LayoutInt(2)));
Assert.Equal(new LayoutInt(2), LayoutInt.AlignUp(new LayoutInt(2), new LayoutInt(2)));
Assert.Equal(new LayoutInt(4), LayoutInt.AlignUp(new LayoutInt(3), new LayoutInt(2)));
Assert.Equal(new LayoutInt(4), LayoutInt.AlignUp(new LayoutInt(4), new LayoutInt(2)));
Assert.Equal(new LayoutInt(6), LayoutInt.AlignUp(new LayoutInt(5), new LayoutInt(2)));
Assert.Equal(new LayoutInt(6), LayoutInt.AlignUp(new LayoutInt(6), new LayoutInt(2)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(7), new LayoutInt(2)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(8), new LayoutInt(2)));
Assert.Equal(new LayoutInt(10), LayoutInt.AlignUp(new LayoutInt(9), new LayoutInt(2)));
Assert.Equal(new LayoutInt(10), LayoutInt.AlignUp(new LayoutInt(10), new LayoutInt(2)));
Assert.Equal(new LayoutInt(12), LayoutInt.AlignUp(new LayoutInt(11), new LayoutInt(2)));
Assert.Equal(new LayoutInt(12), LayoutInt.AlignUp(new LayoutInt(12), new LayoutInt(2)));
Assert.Equal(new LayoutInt(14), LayoutInt.AlignUp(new LayoutInt(13), new LayoutInt(2)));
Assert.Equal(new LayoutInt(14), LayoutInt.AlignUp(new LayoutInt(14), new LayoutInt(2)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(15), new LayoutInt(2)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(16), new LayoutInt(2)));
Assert.Equal(new LayoutInt(4), LayoutInt.AlignUp(new LayoutInt(1), new LayoutInt(4)));
Assert.Equal(new LayoutInt(4), LayoutInt.AlignUp(new LayoutInt(2), new LayoutInt(4)));
Assert.Equal(new LayoutInt(4), LayoutInt.AlignUp(new LayoutInt(3), new LayoutInt(4)));
Assert.Equal(new LayoutInt(4), LayoutInt.AlignUp(new LayoutInt(4), new LayoutInt(4)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(5), new LayoutInt(4)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(6), new LayoutInt(4)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(7), new LayoutInt(4)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(8), new LayoutInt(4)));
Assert.Equal(new LayoutInt(12), LayoutInt.AlignUp(new LayoutInt(9), new LayoutInt(4)));
Assert.Equal(new LayoutInt(12), LayoutInt.AlignUp(new LayoutInt(10), new LayoutInt(4)));
Assert.Equal(new LayoutInt(12), LayoutInt.AlignUp(new LayoutInt(11), new LayoutInt(4)));
Assert.Equal(new LayoutInt(12), LayoutInt.AlignUp(new LayoutInt(12), new LayoutInt(4)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(13), new LayoutInt(4)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(14), new LayoutInt(4)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(15), new LayoutInt(4)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(16), new LayoutInt(4)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(1), new LayoutInt(8)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(2), new LayoutInt(8)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(3), new LayoutInt(8)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(4), new LayoutInt(8)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(5), new LayoutInt(8)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(6), new LayoutInt(8)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(7), new LayoutInt(8)));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(8), new LayoutInt(8)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(9), new LayoutInt(8)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(10), new LayoutInt(8)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(11), new LayoutInt(8)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(12), new LayoutInt(8)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(13), new LayoutInt(8)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(14), new LayoutInt(8)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(15), new LayoutInt(8)));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(16), new LayoutInt(8)));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(new LayoutInt(1), LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(new LayoutInt(2), LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(new LayoutInt(3), LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(new LayoutInt(4), LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(new LayoutInt(5), LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(new LayoutInt(6), LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(new LayoutInt(7), LayoutInt.Indeterminate));
Assert.Equal(new LayoutInt(8), LayoutInt.AlignUp(new LayoutInt(8), LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(new LayoutInt(9), LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(new LayoutInt(10), LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(new LayoutInt(11), LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(new LayoutInt(12), LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(new LayoutInt(13), LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(new LayoutInt(14), LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(new LayoutInt(15), LayoutInt.Indeterminate));
Assert.Equal(new LayoutInt(16), LayoutInt.AlignUp(new LayoutInt(16), LayoutInt.Indeterminate));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(LayoutInt.Indeterminate, new LayoutInt(1)));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(LayoutInt.Indeterminate, new LayoutInt(2)));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(LayoutInt.Indeterminate, new LayoutInt(4)));
Assert.Equal(LayoutInt.Indeterminate, LayoutInt.AlignUp(LayoutInt.Indeterminate, new LayoutInt(8)));
}
private void TestLayoutOfUniversalCanonTypeOnArchitecture(TypeSystemContext context)
{
// Assert all of the various layout information about the universal canon type itself
Assert.Equal(LayoutInt.Indeterminate, context.UniversalCanonType.InstanceFieldAlignment);
Assert.Equal(LayoutInt.Indeterminate, context.UniversalCanonType.InstanceFieldSize);
Assert.Equal(LayoutInt.Indeterminate, context.UniversalCanonType.InstanceByteAlignment);
Assert.Equal(LayoutInt.Indeterminate, context.UniversalCanonType.InstanceByteCount);
Assert.Equal(LayoutInt.Indeterminate, context.UniversalCanonType.InstanceByteCountUnaligned);
Assert.Equal(LayoutInt.Zero, context.UniversalCanonType.GCStaticFieldAlignment);
Assert.Equal(LayoutInt.Zero, context.UniversalCanonType.GCStaticFieldSize);
Assert.Equal(LayoutInt.Zero, context.UniversalCanonType.NonGCStaticFieldAlignment);
Assert.Equal(LayoutInt.Zero, context.UniversalCanonType.NonGCStaticFieldSize);
Assert.Equal(LayoutInt.Zero, context.UniversalCanonType.ThreadGcStaticFieldAlignment);
Assert.Equal(LayoutInt.Zero, context.UniversalCanonType.ThreadGcStaticFieldSize);
}
[Fact]
public void TestLayoutOfUniversalCanonType()
{
// Assert all of the various layout information about the universal canon type itself, do this for all architectures
TestLayoutOfUniversalCanonTypeOnArchitecture(_contextX86);
TestLayoutOfUniversalCanonTypeOnArchitecture(_contextX64);
TestLayoutOfUniversalCanonTypeOnArchitecture(_contextARM);
}
[Fact]
public void TestAllFieldsStructUniversalGeneric()
{
// Given a struct with all field universal, what is the layout?
MetadataType tGen;
InstantiatedType genOfUUU;
ModuleDesc testModule;
TypeSystemContext context;
// X64 testing
testModule = _testModuleX64;
context = _contextX64;
tGen = testModule.GetType("GenericTypes", "GenStruct`3");
genOfUUU = tGen.MakeInstantiatedType(context.UniversalCanonType, context.UniversalCanonType, context.UniversalCanonType);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.InstanceFieldAlignment);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.InstanceFieldSize);
Assert.Equal(new LayoutInt(8), genOfUUU.InstanceByteAlignment);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.InstanceByteCount);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.InstanceByteCountUnaligned);
Assert.Equal(0, genOfUUU.GetFields().First().Offset.AsInt);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.GetFields().ElementAt(1).Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.GetFields().ElementAt(2).Offset);
testModule = _testModuleX86;
context = _contextX86;
tGen = testModule.GetType("GenericTypes", "GenStruct`3");
genOfUUU = tGen.MakeInstantiatedType(context.UniversalCanonType, context.UniversalCanonType, context.UniversalCanonType);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.InstanceFieldAlignment);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.InstanceFieldSize);
Assert.Equal(new LayoutInt(4), genOfUUU.InstanceByteAlignment);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.InstanceByteCount);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.InstanceByteCountUnaligned);
Assert.Equal(0, genOfUUU.GetFields().First().Offset.AsInt);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.GetFields().ElementAt(1).Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.GetFields().ElementAt(2).Offset);
testModule = _testModuleARM;
context = _contextARM;
tGen = testModule.GetType("GenericTypes", "GenStruct`3");
genOfUUU = tGen.MakeInstantiatedType(context.UniversalCanonType, context.UniversalCanonType, context.UniversalCanonType);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.InstanceFieldAlignment);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.InstanceFieldSize);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.InstanceByteAlignment);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.InstanceByteCount);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.InstanceByteCountUnaligned);
Assert.Equal(0, genOfUUU.GetFields().First().Offset.AsInt);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.GetFields().ElementAt(1).Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfUUU.GetFields().ElementAt(2).Offset);
}
private void TestIndeterminatedNestedStructFieldPerContext(TypeSystemContext context, ModuleDesc testModule, out InstantiatedType genOfIntNestedInt, out InstantiatedType genOfLongNestedInt)
{
// Given a struct with all field universal, what is the layout?
MetadataType tGen = testModule.GetType("GenericTypes", "GenStruct`3");
InstantiatedType genOfUUU = tGen.MakeInstantiatedType(context.UniversalCanonType, context.UniversalCanonType, context.UniversalCanonType);
genOfIntNestedInt = tGen.MakeInstantiatedType(context.GetWellKnownType(WellKnownType.Int32), genOfUUU, context.GetWellKnownType(WellKnownType.Int32));
genOfLongNestedInt = tGen.MakeInstantiatedType(context.GetWellKnownType(WellKnownType.Int64), genOfUUU, context.GetWellKnownType(WellKnownType.Int32));
Assert.Equal(LayoutInt.Indeterminate, genOfIntNestedInt.InstanceFieldAlignment);
Assert.Equal(LayoutInt.Indeterminate, genOfIntNestedInt.InstanceFieldSize);
Assert.Equal(LayoutInt.Indeterminate, genOfIntNestedInt.InstanceByteCount);
Assert.Equal(LayoutInt.Indeterminate, genOfIntNestedInt.InstanceByteCountUnaligned);
Assert.Equal(0, genOfIntNestedInt.GetFields().First().Offset.AsInt);
Assert.Equal(LayoutInt.Indeterminate, genOfIntNestedInt.GetFields().ElementAt(1).Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfIntNestedInt.GetFields().ElementAt(2).Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfLongNestedInt.InstanceFieldAlignment);
Assert.Equal(LayoutInt.Indeterminate, genOfLongNestedInt.InstanceFieldSize);
Assert.Equal(LayoutInt.Indeterminate, genOfLongNestedInt.InstanceByteCount);
Assert.Equal(LayoutInt.Indeterminate, genOfLongNestedInt.InstanceByteCountUnaligned);
Assert.Equal(0, genOfLongNestedInt.GetFields().First().Offset.AsInt);
Assert.Equal(8, genOfLongNestedInt.GetFields().ElementAt(1).Offset.AsInt);
Assert.Equal(LayoutInt.Indeterminate, genOfLongNestedInt.GetFields().ElementAt(2).Offset);
}
[Fact]
public void TestIndeterminateNestedStructField()
{
InstantiatedType genOfIntNestedInt;
InstantiatedType genOfLongNestedInt;
TestIndeterminatedNestedStructFieldPerContext(_contextX64, _testModuleX64, out genOfIntNestedInt, out genOfLongNestedInt);
Assert.Equal(new LayoutInt(8), genOfLongNestedInt.InstanceByteAlignment);
Assert.Equal(new LayoutInt(8), genOfLongNestedInt.InstanceByteAlignment);
TestIndeterminatedNestedStructFieldPerContext(_contextX86, _testModuleX86, out genOfIntNestedInt, out genOfLongNestedInt);
Assert.Equal(new LayoutInt(4), genOfLongNestedInt.InstanceByteAlignment);
Assert.Equal(new LayoutInt(4), genOfLongNestedInt.InstanceByteAlignment);
TestIndeterminatedNestedStructFieldPerContext(_contextARM, _testModuleARM, out genOfIntNestedInt, out genOfLongNestedInt);
Assert.Equal(LayoutInt.Indeterminate, genOfLongNestedInt.InstanceByteAlignment);
Assert.Equal(LayoutInt.Indeterminate, genOfLongNestedInt.InstanceByteAlignment);
}
private void AssertClassIndeterminateSize(TypeSystemContext context, MetadataType type, LayoutInt expectedIndeterminateByteAlignment)
{
Assert.Equal(context.Target.LayoutPointerSize, type.InstanceFieldAlignment);
Assert.Equal(context.Target.LayoutPointerSize, type.InstanceFieldSize);
Assert.Equal(expectedIndeterminateByteAlignment, type.InstanceByteAlignment);
Assert.Equal(LayoutInt.Indeterminate, type.InstanceByteCount);
Assert.Equal(LayoutInt.Indeterminate, type.InstanceByteCountUnaligned);
}
private void CommonClassLayoutTestBits(ModuleDesc testModule,
TypeSystemContext context,
LayoutInt expectedIndeterminateByteAlignment,
out MetadataType tDerivedGen,
out InstantiatedType genOfIU,
out InstantiatedType genOfLU,
out InstantiatedType genOfUU,
out InstantiatedType genOfUI,
out InstantiatedType genOfUL)
{
tDerivedGen = testModule.GetType("GenericTypes", "GenDerivedClass`2");
genOfIU = tDerivedGen.MakeInstantiatedType(context.GetWellKnownType(WellKnownType.Int32), context.UniversalCanonType);
genOfLU = tDerivedGen.MakeInstantiatedType(context.GetWellKnownType(WellKnownType.Int64), context.UniversalCanonType);
genOfUU = tDerivedGen.MakeInstantiatedType(context.UniversalCanonType, context.UniversalCanonType);
genOfUI = tDerivedGen.MakeInstantiatedType(context.UniversalCanonType, context.GetWellKnownType(WellKnownType.Int32));
genOfUL = tDerivedGen.MakeInstantiatedType(context.UniversalCanonType, context.GetWellKnownType(WellKnownType.Int64));
// Assert that the class as a whole is known to be of undefined size
AssertClassIndeterminateSize(context, genOfIU, expectedIndeterminateByteAlignment);
AssertClassIndeterminateSize(context, genOfLU, expectedIndeterminateByteAlignment);
AssertClassIndeterminateSize(context, genOfUU, expectedIndeterminateByteAlignment);
AssertClassIndeterminateSize(context, genOfUI, expectedIndeterminateByteAlignment);
AssertClassIndeterminateSize(context, genOfUL, expectedIndeterminateByteAlignment);
}
[Fact]
public void TestClassLayout()
{
// Tests class layout behavior with universal generics
// Tests handling universal base types as well as non-universal base types
MetadataType tDerivedGen;
InstantiatedType genOfIU;
InstantiatedType genOfLU;
InstantiatedType genOfUU;
InstantiatedType genOfUI;
InstantiatedType genOfUL;
ModuleDesc testModule;
TypeSystemContext context;
// X64 testing
testModule = _testModuleX64;
context = _contextX64;
CommonClassLayoutTestBits(testModule,
context,
new LayoutInt(8),
out tDerivedGen,
out genOfIU,
out genOfLU,
out genOfUU,
out genOfUI,
out genOfUL);
// On x64 first field offset is well known always
Assert.Equal(8, genOfIU.BaseType.GetFields().First().Offset.AsInt);
Assert.Equal(8, genOfLU.BaseType.GetFields().First().Offset.AsInt);
Assert.Equal(8, genOfUU.BaseType.GetFields().First().Offset.AsInt);
Assert.Equal(8, genOfUI.BaseType.GetFields().First().Offset.AsInt);
Assert.Equal(8, genOfUL.BaseType.GetFields().First().Offset.AsInt);
Assert.Equal(LayoutInt.Indeterminate, genOfIU.GetFields().First().Offset);
Assert.Equal(16, genOfLU.GetFields().First().Offset.AsInt);
Assert.Equal(LayoutInt.Indeterminate, genOfUU.GetFields().First().Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfUI.GetFields().First().Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfUL.GetFields().First().Offset);
// X86 testing
testModule = _testModuleX86;
context = _contextX86;
CommonClassLayoutTestBits(testModule,
context,
new LayoutInt(4),
out tDerivedGen,
out genOfIU,
out genOfLU,
out genOfUU,
out genOfUI,
out genOfUL);
Assert.Equal(4, genOfIU.BaseType.GetFields().First().Offset.AsInt);
Assert.Equal(8, genOfLU.BaseType.GetFields().First().Offset.AsInt);
Assert.Equal(LayoutInt.Indeterminate, genOfUU.BaseType.GetFields().First().Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfUI.BaseType.GetFields().First().Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfUL.BaseType.GetFields().First().Offset);
Assert.Equal(8, genOfIU.GetFields().First().Offset.AsInt);
Assert.Equal(16, genOfLU.GetFields().First().Offset.AsInt);
Assert.Equal(LayoutInt.Indeterminate, genOfUU.GetFields().First().Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfUI.GetFields().First().Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfUL.GetFields().First().Offset);
// ARM testing
testModule = _testModuleARM;
context = _contextARM;
CommonClassLayoutTestBits(testModule,
context,
LayoutInt.Indeterminate,
out tDerivedGen,
out genOfIU,
out genOfLU,
out genOfUU,
out genOfUI,
out genOfUL);
Assert.Equal(4, genOfIU.BaseType.GetFields().First().Offset.AsInt);
Assert.Equal(8, genOfLU.BaseType.GetFields().First().Offset.AsInt);
Assert.Equal(LayoutInt.Indeterminate, genOfUU.BaseType.GetFields().First().Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfUI.BaseType.GetFields().First().Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfUL.BaseType.GetFields().First().Offset);
Assert.Equal(8, genOfIU.GetFields().First().Offset.AsInt);
Assert.Equal(16, genOfLU.GetFields().First().Offset.AsInt);
Assert.Equal(LayoutInt.Indeterminate, genOfUU.GetFields().First().Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfUI.GetFields().First().Offset);
Assert.Equal(LayoutInt.Indeterminate, genOfUL.GetFields().First().Offset);
}
}
}
|
