private void ModifyMethod(TypeDefinition targetType, MethodDefinition yourMethod,
MemberActionAttribute memberAction, MethodDefinition targetMethod)
{
Log_modifying_member("method", yourMethod);
var insertAttribute = yourMethod.GetCustomAttribute <DuplicatesBodyAttribute>();
var bodySource = insertAttribute == null ? yourMethod : GetBodySource(targetType, yourMethod, insertAttribute);
ModificationScope scope = memberAction.Scope;
if (scope.HasFlag(AdvancedModificationScope.ExplicitOverrides))
{
targetMethod.Overrides.Clear();
foreach (var explicitOverride in yourMethod.Overrides)
{
targetMethod.Overrides.Add(FixMethodReference(explicitOverride));
}
}
var attrFilter = AttrFilter(scope);
CopyCustomAttributes(targetMethod, yourMethod, attrFilter);
CopyCustomAttributes(targetMethod.MethodReturnType, yourMethod.MethodReturnType, attrFilter);
for (int i = 0; i < yourMethod.Parameters.Count; i++)
{
CopyCustomAttributes(targetMethod.Parameters[i], yourMethod.Parameters[i], attrFilter);
}
for (int i = 0; i < yourMethod.GenericParameters.Count; i++)
{
CopyCustomAttributes(targetMethod.GenericParameters[i], yourMethod.GenericParameters[i], attrFilter);
}
if ((scope & ModificationScope.Accessibility) != 0)
{
targetMethod.SetAccessibility(yourMethod.GetAccessbility());
}
if (scope.HasFlag(ModificationScope.Body))
{
if (yourMethod.Body != null)
{
TransferMethodBody(targetMethod, bodySource);
}
else
{
//this happens in abstract methods and some others.
targetMethod.Body = null;
}
}
if (EmbedHistory)
{
targetMethod.AddPatchedByMemberAttribute(yourMethod);
}
var toggleAttributesAttr = yourMethod.GetCustomAttribute <ToggleMethodAttributes>();
var toggleValue = toggleAttributesAttr?.Attributes ?? 0;
targetMethod.Attributes ^= (MethodAttributes)toggleValue;
}
private static Func <CustomAttribute, bool> AttrFilter(ModificationScope scope)
{
Func <CustomAttribute, bool> onlyPwAttrs = x => x.AttributeType.Namespace == nameof(Patchwork);
Func <CustomAttribute, bool> anyAttr = x => true;
return(scope.HasFlag(ModificationScope.CustomAttributes) ? anyAttr : onlyPwAttrs);
}
private static Func<CustomAttribute, bool> AttrFilter(ModificationScope scope)
{
Func<CustomAttribute, bool> onlyPwAttrs = x => x.AttributeType.Namespace == nameof(Patchwork);
Func<CustomAttribute, bool> anyAttr = x => true;
return scope.HasFlag(ModificationScope.CustomAttributes) ? anyAttr : onlyPwAttrs;
}