// NOTE: May be called on invalid definitions
public bool IsImported(CST.AssemblyDef assemblyDef, CST.TypeDef typeDef, CST.MethodDef methodDef)
{
var ctxt = CST.MessageContextBuilders.Member(env.Global, assemblyDef, typeDef, methodDef);
var outerDef = typeDef.OuterPropertyOrEvent(methodDef.MethodSignature);
if (outerDef != null)
{
switch (outerDef.Flavor)
{
case CST.MemberDefFlavor.Event:
{
var eventDef = (CST.EventDef)outerDef;
if (eventDef.Add != null && eventDef.Remove != null)
{
var n = 0;
if (attributeHelper.MethodHasAttribute
(assemblyDef,
typeDef,
typeDef.ResolveMethod(eventDef.Add),
attributeHelper.ImportAttributeRef,
false,
false))
n++;
if (attributeHelper.MethodHasAttribute
(assemblyDef,
typeDef,
typeDef.ResolveMethod(eventDef.Remove),
attributeHelper.ImportAttributeRef,
false,
false))
n++;
if (n == 1)
{
env.Log
(new InvalidInteropMessage
(ctxt, "events with adders and removers must be imported simultaneously"));
throw new DefinitionException();
}
}
break;
}
case CST.MemberDefFlavor.Property:
{
var propDef = (CST.PropertyDef)outerDef;
if (propDef.Get != null && propDef.Set != null)
{
var n = 0;
if (attributeHelper.MethodHasAttribute
(assemblyDef,
typeDef,
typeDef.ResolveMethod(propDef.Get),
attributeHelper.ImportAttributeRef,
false,
false))
n++;
if (attributeHelper.MethodHasAttribute
(assemblyDef,
typeDef,
typeDef.ResolveMethod(propDef.Set),
attributeHelper.ImportAttributeRef,
false,
false))
n++;
if (n == 1)
{
env.Log
(new InvalidInteropMessage
(ctxt, "properties with getters and setters must be imported simultaneously"));
throw new DefinitionException();
}
}
break;
}
case CST.MemberDefFlavor.Field:
case CST.MemberDefFlavor.Method:
throw new InvalidOperationException("not a property or event");
default:
throw new ArgumentOutOfRangeException();
}
}
if (IsExtern(assemblyDef, typeDef, methodDef))
{
if (attributeHelper.MethodHasAttribute
(assemblyDef, typeDef, methodDef, attributeHelper.ImportAttributeRef, true, false))
{
if (attributeHelper.MethodHasAttribute
(assemblyDef, typeDef, methodDef, env.Global.DllImportAttributeRef, false, false))
{
env.Log(new InvalidInteropMessage(ctxt, "cannot mix 'Import' and 'DllImport' attributes"));
throw new DefinitionException();
}
return true;
}
else
return false;
}
else
{
if (attributeHelper.MethodHasAttribute
(assemblyDef, typeDef, methodDef, attributeHelper.ImportAttributeRef, false, false))
{
if (outerDef == null)
{
env.Log
(new InvalidInteropMessage
(ctxt, "cannot Import a method which already has an implementation"));
throw new DefinitionException();
}
// else: C# doesn't allow extern properties, so be forgiving here
return true;
}
return false;
}
}
