public MethodImplAttributeTest()
{
//create a dynamic assembly with the required attribute
//and check for the validity
dynAsmName.Name = "TestAssembly";
dynAssembly = Thread.GetDomain().DefineDynamicAssembly(
dynAsmName, AssemblyBuilderAccess.Run
);
// Set the required Attribute of the assembly.
Type attribute = typeof(MethodImplAttribute);
ConstructorInfo ctrInfo = attribute.GetConstructor(
new Type [] { typeof(MethodImplOptions) }
);
CustomAttributeBuilder attrBuilder =
new CustomAttributeBuilder(ctrInfo, new object [1] {
MethodImplOptions.InternalCall
});
dynAssembly.SetCustomAttribute(attrBuilder);
object [] attributes = dynAssembly.GetCustomAttributes(true);
attr = attributes [0] as MethodImplAttribute;
}
public void CtorTest()
{
var a = new MethodImplAttribute(MethodImplOptions.InternalCall);
Assert.AreEqual(MethodImplOptions.InternalCall, a.Value);
a = new MethodImplAttribute((short)1);
Assert.AreEqual((MethodImplOptions)1, a.Value);
a = new MethodImplAttribute();
Assert.AreEqual((MethodImplOptions)0, a.Value);
}
public static void MethodImplAttributeTests()
{
var attr1 = new MethodImplAttribute();
Assert.Equal(default(MethodImplOptions), attr1.Value);
var attr2 = new MethodImplAttribute(-1);
Assert.Equal((MethodImplOptions)(-1), attr2.Value);
var attr3 = new MethodImplAttribute(MethodImplOptions.Unmanaged);
Assert.Equal(MethodImplOptions.Unmanaged, attr3.Value);
}
public override object[] GetCustomAttributes(Type attributeType, bool inherit)
{
ArgumentNullException.ThrowIfNull(attributeType);
if (attributeType.IsAssignableFrom(typeof(MethodImplAttribute)))
{
// avoid calling CreateInstance() in the common case where the type is Attribute
object[] result = attributeType == typeof(Attribute) ? new Attribute[1] : (object[])Array.CreateInstance(attributeType, 1);
result[0] = new MethodImplAttribute((MethodImplOptions)GetMethodImplementationFlags());
return(result);
}
return((object[])Array.CreateInstance(attributeType.IsValueType || attributeType.ContainsGenericParameters ? typeof(object) : attributeType, 0));
}
public void Ctor_Enum()
{
var res = new MethodImplAttribute(MethodImplOptions.InternalCall);
Assert.AreEqual(MethodImplOptions.InternalCall, res.Value);
}
public void Ctor_Short()
{
var res = new MethodImplAttribute(1);
Assert.AreEqual((MethodImplOptions)1, res.Value);
}
public void FieldsTest()
{
var a = new MethodImplAttribute(MethodImplOptions.NoInlining);
Assert.AreEqual(MethodCodeType.IL, a.MethodCodeType);
}
