public void AccessField_BaseTypeConstraint()
{
var overriddenMethod = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType o) => o.GenericMethod <Constraint> (null, ""));
var type = AssembleType <DomainType> (
p => p.GetOrAddOverride(overriddenMethod).SetBody(
ctx =>
{
// TODO 5480: Remove conversion and inline.
var castedInstance = Expression.Convert(ctx.Parameters[0], typeof(Constraint));
return(Expression.Block(
Expression.Assign(Expression.Field(castedInstance, "Field"), ctx.Parameters[1]),
Expression.Field(castedInstance, "Field")));
}));
var instance = (DomainType)Activator.CreateInstance(type);
var arg = new Constraint();
var result = instance.GenericMethod(arg, "field on reference type");
Assert.That(arg.Field, Is.EqualTo("field on reference type"));
Assert.That(result, Is.EqualTo("field on reference type"));
// Note that fields can only be accessed via a base type constraint. Since value types cannot be used as base type constraints, only fields
// declared on reference types can be accessed from a generic parameter.
}
public void BaseMethod_GenericMethod()
{
var baseMethod = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType obj) => obj.GenericMethod <Dev.T> (null));
var type = AssembleType <DomainType> (
proxyType =>
{
var mutableMethod = proxyType.GetOrAddOverride(baseMethod);
Assert.That(mutableMethod.BaseMethod, Is.SameAs(baseMethod));
Assert.That(mutableMethod.IsGenericMethodDefinition, Is.True);
var mutableGenericParameter = mutableMethod.MutableGenericParameters.Single();
Assert.That(mutableGenericParameter.Name, Is.EqualTo("TPar"));
Assert.That(mutableGenericParameter.GenericParameterAttributes, Is.EqualTo(GenericParameterAttributes.None));
Assert.That(mutableGenericParameter.GetGenericParameterConstraints(), Is.Empty);
mutableMethod.SetBody(ctx => ExpressionHelper.StringConcat(ctx.PreviousBody, Expression.Constant(" made mutable")));
});
var method = GetDeclaredMethod(type, "GenericMethod");
Assert.That(method.GetBaseDefinition(), Is.SameAs(baseMethod));
Assert.That(method.IsGenericMethodDefinition, Is.True);
var genericParameter = method.GetGenericArguments().Single();
Assert.That(genericParameter.Name, Is.EqualTo("TPar"));
Assert.That(genericParameter.GenericParameterAttributes, Is.EqualTo(GenericParameterAttributes.None));
Assert.That(genericParameter.GetGenericParameterConstraints(), Is.EqualTo(new[] { typeof(object) }), "Why object and not empty?");
var instance = (DomainType)Activator.CreateInstance(type);
Assert.That(instance.GenericMethod("doesn't matter"), Is.EqualTo("DomainType String made mutable"));
}
public void CreateBody_BuildsCorrectBody_UsingAbstractTemplateMembers()
{
var accessorImplementationMethod =
NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((PropertyAccessor a) => a.SetValue <object> (null));
var arguments = new Expression[] { Expression.Parameter(typeof(int), "param") };
var ctx = new MethodBodyModificationContext(_proxyType, false, new ParameterExpression[0], Type.EmptyTypes, typeof(int), null, null);
_interceptorPartialMock
.Stub(stub => PrivateInvoke.GetNonPublicProperty(stub, "AccessorImplementationMethod"))
.Return(accessorImplementationMethod);
_interceptorPartialMock
.Stub(stub => PrivateInvoke.InvokeNonPublicMethod(stub, "GetArguments", Arg <MethodBaseBodyContextBase> .Is.Anything))
.WhenCalled(mi => Assert.That(mi.Arguments[0], Is.SameAs(ctx)))
.Return(arguments);
var result = (Expression)PrivateInvoke.InvokeNonPublicMethod(_interceptorPartialMock, "CreateBody", ctx);
var expectedbody =
Expression.Call(
Expression.Call(
Expression.Property(
new ThisExpression(_proxyType),
typeof(DomainObject).GetProperty("Properties", BindingFlags.Instance | BindingFlags.NonPublic)),
"get_Item",
null,
Expression.Constant("abc")),
"SetValue",
new[] { typeof(int) },
arguments);
ExpressionTreeComparer.CheckAreEqualTrees(expectedbody, result);
}
public void AccessMembers()
{
var overriddenMethod =
NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType o) => o.GenericMethod <Constraint> (null, ""));
var field = NormalizingMemberInfoFromExpressionUtility.GetField((Constraint o) => o.Field);
var method = NormalizingMemberInfoFromExpressionUtility.GetMethod((Constraint o) => o.Method(""));
var property = NormalizingMemberInfoFromExpressionUtility.GetProperty((Constraint o) => o.Property);
var type = AssembleType <DomainType> (p => p.GetOrAddOverride(overriddenMethod).SetBody(ctx =>
{
var parameter = ctx.Parameters[0];
var variable = Expression.Variable(typeof(string));
// TODO 5480: Remove conversion and inline.
var castedParameter = Expression.Convert(parameter, typeof(Constraint));
return(Expression.Block(
new[] { variable },
Expression.Assign(variable, Expression.Call(castedParameter, method, ctx.Parameters[1])),
Expression.Assign(Expression.Field(castedParameter, field), variable),
Expression.Assign(Expression.Property(castedParameter, property), Expression.Field(castedParameter, field)),
Expression.Property(castedParameter, property)));
}));
var instance = (DomainType)Activator.CreateInstance(type);
var arg = new Constraint();
var result = instance.GenericMethod(arg, "abc");
Assert.That(arg.Field, Is.EqualTo("method: abc"));
Assert.That(arg.Property, Is.EqualTo("method: abc"));
Assert.That(result, Is.EqualTo("method: abc"));
}
public void ExistingMethod()
{
var method = NormalizingMemberInfoFromExpressionUtility.GetMethod((DomainType o) => o.Method());
var genericMethodDefiniton = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition(() => Enumerable.Empty <Dev.T>());
var type = AssembleType <DomainType> (
p =>
p.GetOrAddOverride(method)
.SetBody(
ctx =>
{
var methodInstantiation = genericMethodDefiniton.MakeTypePipeGenericMethod(p);
Assert.That(methodInstantiation.IsGenericMethod, Is.True);
Assert.That(methodInstantiation.IsGenericMethodDefinition, Is.False);
Assert.That(methodInstantiation.GetGenericArguments(), Is.EqualTo(new[] { p }));
return(Expression.Call(methodInstantiation));
}));
var instance = (DomainType)Activator.CreateInstance(type);
var result = instance.Method();
Assert.That(result, Is.InstanceOf <IEnumerable <DomainType> >());
var resultType = result.GetType();
Assert.That(resultType.IsArray, Is.True);
Assert.That(resultType.GetElementType(), Is.SameAs(type));
}
public void GenericParameters()
{
var method1 = NormalizingMemberInfoFromExpressionUtility.GetMethod((DomainType o) => o.ReferenceType());
var method2 = NormalizingMemberInfoFromExpressionUtility.GetMethod((DomainType o) => o.ValueType());
var method3 = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType o) => o.Unconstrained <Dev.T>());
var method4 = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType o) => o.ReferenceTypeConstraint <Dev.T>());
var method5 = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType o) => o.NotNuallableValueTypeConstraint <int>());
var method6 = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType o) => o.ClassBaseTypeConstraint <DomainType>());
var type = AssembleType <DomainType> (
proxyType =>
{
proxyType.GetOrAddOverride(method1).SetBody(ctx => Expression.Default(typeof(string)));
proxyType.GetOrAddOverride(method2).SetBody(ctx => Expression.Default(typeof(int)));
proxyType.GetOrAddOverride(method3).SetBody(ctx => Expression.Default(ctx.GenericParameters[0]));
proxyType.GetOrAddOverride(method4).SetBody(ctx => Expression.Default(ctx.GenericParameters[0]));
proxyType.GetOrAddOverride(method5).SetBody(ctx => Expression.Default(ctx.GenericParameters[0]));
proxyType.GetOrAddOverride(method6).SetBody(ctx => Expression.Default(ctx.GenericParameters[0]));
});
var instance = (DomainType)Activator.CreateInstance(type);
Assert.That(instance.ReferenceType(), Is.Null);
Assert.That(instance.Unconstrained <string>(), Is.Null);
Assert.That(instance.ReferenceTypeConstraint <string>(), Is.Null);
Assert.That(instance.NotNuallableValueTypeConstraint <int>(), Is.EqualTo(0));
Assert.That(instance.ClassBaseTypeConstraint <DomainType>(), Is.Null);
}
public void GetGenericMethodDefinition_Static()
{
var member = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition(() => DomainType.StaticGenericMethod <TestClass> (null));
var expected = typeof(DomainType).GetMethod("StaticGenericMethod");
Assert.That(member, Is.EqualTo(expected));
}
public void GetGenericMethodDefinition_Instance_OverridingMethod()
{
var member = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType obj) => obj.OverridingGenericMethod <TestClass> (null));
var expected = typeof(DomainType).GetMethod("OverridingGenericMethod");
Assert.That(member, Is.EqualTo(expected));
}
public void GetMethodSignature_GenericMethod()
{
var method = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType obj) => obj.GenericMethod <int, int>());
var result = SignatureDebugStringGenerator.GetMethodSignature(method);
Assert.That(result, Is.EqualTo("Void GenericMethod[T1,T2]()"));
}
public void SetUp()
{
_genericMethodDefinition = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition(() => GenericMethod <Dev.T, Dev.T> (null));
_typeArg1 = MutableTypeObjectMother.Create(typeof(object));
_typeArg2 = MutableTypeObjectMother.Create(typeof(Exception));
_instantiation = _genericMethodDefinition.MakeTypePipeGenericMethod(_typeArg1, _typeArg2);
}
public void AppendTypeString_GenericMethodParameter()
{
var method = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType dt) => dt.MethodWithUsedGenericParameters <Dev.T, Dev.T>(null));
var genericParameter = method.GetGenericArguments()[0];
_helper.AppendTypeString(_sb, genericParameter);
Assert.That(_sb.ToString(), Is.EqualTo("[0]"));
}
public static MethodInstantiation Create(MethodInfo genericMethodDefinition = null, IEnumerable <Type> typeArguments = null)
{
genericMethodDefinition = genericMethodDefinition
?? NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition(() => GenericMethod(7));
typeArguments = typeArguments ?? genericMethodDefinition.GetGenericArguments().Select(a => ReflectionObjectMother.GetSomeType());
var instantiationInfo = new MethodInstantiationInfo(genericMethodDefinition, typeArguments);
return(new MethodInstantiation(instantiationInfo));
}
public override void SetUp()
{
base.SetUp();
_baseMethod = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType o) => o.GenericMethod <C, D> (null, null));
var genericParameters = _baseMethod.GetGenericArguments();
_t1 = genericParameters[0];
_t2 = genericParameters[1];
}
public void DelegateTo_Static_WithGenericParameters()
{
var context = MethodBodyContextBaseObjectMother.Create(genericParameters: _genericParameters);
var method = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition(() => Enumerable.Empty <Dev.T>());
var result = context.DelegateTo(null, method);
Assert.That(result.Object, Is.Null);
Assert.That(result.Method, Is.SameAs(method.MakeTypePipeGenericMethod(_genericParameters)));
}
public void IsGenericMethodInstantiation()
{
var nonGenericMethod = ReflectionObjectMother.GetSomeNonGenericMethod();
var genericMethodDefinition = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition(() => Method <Dev.T, Dev.T>());
var methodInstantiation = NormalizingMemberInfoFromExpressionUtility.GetMethod(() => Method <int, string>());
Assert.That(nonGenericMethod.IsGenericMethodInstantiation(), Is.False);
Assert.That(genericMethodDefinition.IsGenericMethodInstantiation(), Is.False);
Assert.That(methodInstantiation.IsGenericMethodInstantiation(), Is.True);
}
public void SetUp()
{
_genericMethodDefinition = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition(() => GenericMethod <Dev.T> (null));
_customType = CustomTypeObjectMother.Create();
_runtimeType = ReflectionObjectMother.GetSomeType();
_infoWithCustomType = new MethodInstantiationInfo(_genericMethodDefinition, new[] { _customType }.AsOneTime());
_infoWithRuntimeType = new MethodInstantiationInfo(_genericMethodDefinition, new[] { _runtimeType });
}
public void MakeTypePipeGenericType_UsesGenericArgumentUtilityToValidateGenericArguments()
{
var method = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition(() => Method <Dev.T, Dev.T>());
Assert.That(
() => method.MakeTypePipeGenericMethod(typeof(int)),
Throws.ArgumentException
.With.ArgumentExceptionMessageEqualTo(
"The generic definition 'Method' has 2 generic parameter(s), but 1 generic argument(s) were provided. "
+ "A generic argument must be provided for each generic parameter.", "typeArguments"));
}
public void Modify_Implicit_Generic()
{
var interfaceMethod = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((IDomainInterface o) => o.GenericMethod <Dev.T>());
var type = AssembleType <DomainType> (
p => p.GetOrAddImplementation(interfaceMethod)
.SetBody(ctx => ExpressionHelper.StringConcat(ctx.PreviousBody, Expression.Constant(" modified"))));
var instance = (IDomainInterface)Activator.CreateInstance(type);
Assert.That(instance.GenericMethod <string> (), Is.EqualTo("DomainType.GenericMethod String modified"));
}
public void CallBase_MethodInstantiation()
{
var method = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType o) => o.GenericMethod <Dev.T>());
Assert.That(
() => _context.CallBase(method),
Throws.ArgumentException
.With.ArgumentExceptionMessageEqualTo(
"Cannot perform base call on generic method definition. Construct a method instantiation "
+ "with MethodInfoExtensions.MakeTypePipeGenericMethod.", "baseMethod"));
}
public void MakeTypePipeGenericMethod_MakesGenericMethodWithCustomTypeArgument()
{
var genericMethodDefinition = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition(() => Method <Dev.T, Dev.T>());
var runtimeType = ReflectionObjectMother.GetSomeType();
var customType = CustomTypeObjectMother.Create();
var result = genericMethodDefinition.MakeTypePipeGenericMethod(runtimeType, customType);
Assert.That(result.IsGenericMethod, Is.True);
Assert.That(result.IsGenericMethodDefinition, Is.False);
Assert.That(result.GetGenericArguments(), Is.EqualTo(new[] { runtimeType, customType }));
}
public void SubstituteGenericParameters_RemembersSubstitutedTypes()
{
var genericMethodDefinition = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition(() => GenericMethod <Dev.T> (null, null));
var instantiation = MethodInstantiationObjectMother.Create(genericMethodDefinition, new[] { _typeArgument });
var parameterTypes = instantiation.GetParameters().Select(p => p.ParameterType).ToList();
Assert.That(parameterTypes, Has.Count.EqualTo(2));
Assert.That(parameterTypes[0].GetGenericTypeDefinition(), Is.SameAs(typeof(List <>)));
Assert.That(parameterTypes[0].GetGenericArguments().Single(), Is.SameAs(_typeArgument));
Assert.That(parameterTypes[0], Is.SameAs(parameterTypes[1]));
}
public void AddMethod_MethodDeclaration()
{
var method =
NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType obj) => obj.MethodDeclaration <MemoryStream> (null));
var declaration = MethodDeclaration.CreateEquivalent(method);
var type = AssembleType <DomainType> (p => p.AddMethod("GenericMethod", MethodAttributes.Public, declaration, ctx => Expression.Empty()));
var genericMethod = type.GetMethod("GenericMethod");
var genericParameter = genericMethod.GetGenericArguments().Single();
Assert.That(
genericParameter.GenericParameterAttributes,
Is.EqualTo(GenericParameterAttributes.ReferenceTypeConstraint | GenericParameterAttributes.DefaultConstructorConstraint));
Assert.That(genericParameter.GetGenericParameterConstraints(), Is.EquivalentTo(new[] { typeof(object), typeof(IDisposable) }));
}
public void SetUp()
{
_typeArgument = ReflectionObjectMother.GetSomeType();
var genericTypeDefinition = typeof(GenericType <>);
_genericTypeParameter = genericTypeDefinition.GetGenericArguments().Single();
_declaringType = TypeInstantiationObjectMother.Create(genericTypeDefinition, new[] { _typeArgument });
_memberOnTypeInstantiation = MethodOnTypeInstantiationObjectMother.Create(_declaringType);
var genericMethodDefinition = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition(() => GenericMethod <Dev.T>());
_genericMethodParameter = genericMethodDefinition.GetGenericArguments().Single();
_methodInstantiation = MethodInstantiationObjectMother.Create(genericMethodDefinition, typeArguments: new[] { _typeArgument });
}
public void DelegateToBase()
{
var declaringType = MutableTypeObjectMother.Create(typeof(BaseType));
var baseMethod = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((BaseType o) => o.BaseMethod <Dev.T> (null));
var parameters = new[] { Expression.Parameter(_genericParameters[0]) };
var context = MethodBodyContextBaseObjectMother.Create(
declaringType, genericParameters: _genericParameters, parameterExpressions: parameters, baseMethod: baseMethod);
var result = context.DelegateToBase(baseMethod);
var expected = Expression.Call(
new ThisExpression(declaringType),
new NonVirtualCallMethodInfoAdapter(baseMethod.MakeTypePipeGenericMethod(_genericParameters)),
parameters.Cast <Expression>());
ExpressionTreeComparer.CheckAreEqualTrees(expected, result);
}
public void Override_Implicit_Generic()
{
var interfaceMethod =
NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((IBaseInterface o) => o.GenericBaseMethod <Dev.T>());
var type = AssembleType <DomainType> (
p => p.GetOrAddImplementation(interfaceMethod)
.SetBody(
ctx =>
{
Assert.That(ctx.HasBaseMethod, Is.True);
return(ExpressionHelper.StringConcat(ctx.PreviousBody, Expression.Constant(" implicitly overridden")));
}));
var instance = (IBaseInterface)Activator.CreateInstance(type);
Assert.That(instance.GenericBaseMethod <int> (), Is.EqualTo("DomainType.GenericBaseMethod Int32 implicitly overridden"));
}
public void CreateVectorOfGenericParameter()
{
// public override T'[] CreateGenericVector<T'> () {
// return new T'[7];
// }
var method = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType o) => o.CreateGenericVector <Dev.T>());
var type = AssembleType <DomainType> (
p => p.GetOrAddOverride(method).SetBody(ctx => Expression.NewArrayBounds(ctx.GenericParameters[0], Expression.Constant(7))));
var instance = (DomainType)Activator.CreateInstance(type);
var valueVector = instance.CreateGenericVector <int>();
var refVector = instance.CreateGenericVector <string>();
var valueArrayType = valueVector.GetType();
Assert.That(valueArrayType.GetElementType(), Is.SameAs(typeof(int)));
Assert.That(valueArrayType.GetArrayRank(), Is.EqualTo(1));
Assert.That(valueVector.Length, Is.EqualTo(7));
Assert.That(refVector.GetType().GetElementType(), Is.SameAs(typeof(string)));
}
public void CallVirtualMethod()
{
var overriddenMethod =
NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType o) => o.GenericMethod <Constraint> (null, ""));
var virtualMethod = NormalizingMemberInfoFromExpressionUtility.GetMethod((Constraint o) => o.VirtualMethod(""));
var type = AssembleType <DomainType> (
p => p.GetOrAddOverride(overriddenMethod).SetBody(ctx =>
{
var castedParameter = Expression.Convert(ctx.Parameters[0], typeof(Constraint));
return(Expression.Call(castedParameter, virtualMethod, ctx.Parameters[1]));
}));
var instance = (DomainType)Activator.CreateInstance(type);
var arg = new Constraint();
var result = instance.GenericMethod(arg, "abc");
Assert.That(result, Is.EqualTo("virtual method: abc"));
}
public void OverrideGenericMethod_OverrideWithSameConstraints_CallBase()
{
var overriddenMethod =
NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((BaseType o) => o.OverridableGenericMethod(Dev <Dev.T> .Dummy));
var type = AssembleType <DerivedType> (
proxyType =>
{
var mutableMethod = proxyType.AddMethod(
"OverridableGenericMethod",
MethodAttributes.Public | MethodAttributes.Virtual,
new[] { new GenericParameterDeclaration("TDerived", GenericParameterAttributes.ReferenceTypeConstraint) },
ctx => typeof(string),
ctx => new[] { new ParameterDeclaration(ctx.GenericParameters[0], "arg") },
ctx =>
{
Assert.That(ctx.HasBaseMethod, Is.True);
Assert.That(ctx.BaseMethod, Is.EqualTo(overriddenMethod));
// We need to instantiate the base method with our own generic parameter before calling it.
var instantiatedBaseMethod = ctx.BaseMethod.MakeTypePipeGenericMethod(ctx.GenericParameters[0]);
return(ExpressionHelper.StringConcat(ctx.CallBase(instantiatedBaseMethod, ctx.Parameters[0]), Expression.Constant(" overridden")));
});
Assert.That(mutableMethod.BaseMethod, Is.EqualTo(overriddenMethod));
Assert.That(mutableMethod.GetBaseDefinition(), Is.EqualTo(overriddenMethod));
Assert.That(mutableMethod.AddedExplicitBaseDefinitions, Is.Empty);
var methods = proxyType.GetMethods();
Assert.That(methods.Where(mi => mi.Name == "OverridableGenericMethod"), Is.EqualTo(new[] { mutableMethod }));
Assert.That(methods, Has.No.Member(typeof(DerivedType).GetMethod("OverridableGenericMethod")));
});
var genericMethod = GetDeclaredMethod(type, "OverridableGenericMethod");
var genericParameter = genericMethod.GetGenericArguments().Single();
Assert.That(genericMethod.GetBaseDefinition(), Is.EqualTo(overriddenMethod));
Assert.That(genericParameter.GenericParameterAttributes, Is.EqualTo(GenericParameterAttributes.ReferenceTypeConstraint));
var instance = (DerivedType)Activator.CreateInstance(type);
Assert.That(instance.OverridableGenericMethod("test"), Is.EqualTo("BaseType test overridden"));
}
public void Implement_Generic()
{
var interfaceMethod = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition(
(IAddedInterfaceWithGenericMethod obj) => obj.GenericAddedMethod <MemoryStream>());
var type = AssembleType <DomainType> (
proxyType =>
{
proxyType.AddInterface(typeof(IAddedInterfaceWithGenericMethod));
var mutableMethod = proxyType.GetOrAddImplementation(interfaceMethod);
Assert.That(mutableMethod.BaseMethod, Is.Null);
Assert.That(mutableMethod.IsGenericMethodDefinition, Is.True);
var mutableGenericParameter = mutableMethod.MutableGenericParameters.Single();
Assert.That(mutableGenericParameter.Name, Is.EqualTo("TPar"));
Assert.That(mutableGenericParameter.GenericParameterAttributes, Is.EqualTo(GenericParameterAttributes.DefaultConstructorConstraint));
Assert.That(mutableGenericParameter.GetGenericParameterConstraints(), Is.EqualTo(new[] { typeof(IDisposable) }));
mutableMethod.SetBody(
ctx =>
{
Assert.That(ctx.HasBaseMethod, Is.False);
Assert.That(ctx.HasPreviousBody, Is.False);
return(Expression.Constant("implemented"));
});
});
var method = GetDeclaredMethod(type, "GenericAddedMethod");
Assert.That(method.GetBaseDefinition(), Is.SameAs(method));
Assert.That(method.IsGenericMethodDefinition, Is.True);
var genericParameter = method.GetGenericArguments().Single();
Assert.That(genericParameter.GetGenericParameterConstraints(), Is.EquivalentTo(new[] { typeof(object), typeof(IDisposable) }));
Assert.That(genericParameter.GenericParameterAttributes, Is.EqualTo(GenericParameterAttributes.DefaultConstructorConstraint));
var instance = (IAddedInterfaceWithGenericMethod)Activator.CreateInstance(type);
Assert.That(instance.GenericAddedMethod <MemoryStream>(), Is.EqualTo("implemented"));
}
public void GenericVectorInTypeInstantiation()
{
// public T'[] CopyGenericListToArray<T'> (List<T[]'> list) () {
// return list[0];
// }
var method = NormalizingMemberInfoFromExpressionUtility.GetGenericMethodDefinition((DomainType o) => o.CopyGenericListToArray <Dev.T> (null));
var type = AssembleType <DomainType> (
p => p.GetOrAddOverride(method).SetBody(ctx => Expression.Property(ctx.Parameters[0], "Item", Expression.Constant(0))));
var instance = (DomainType)Activator.CreateInstance(type);
var valVector = new int[0];
var refVector = new string[0];
var result1 = instance.CopyGenericListToArray(new List <int[]> {
valVector
});
var result2 = instance.CopyGenericListToArray(new List <string[]> {
refVector
});
Assert.That(result1, Is.SameAs(valVector));
Assert.That(result2, Is.SameAs(refVector));
}
