private static void Members <T>(T source, T target, MemberSettings settings, ReferencePairCollection referencePairs)
{
Debug.Assert(source != null, nameof(source));
Debug.Assert(target != null, nameof(target));
Debug.Assert(source.GetType() == target.GetType(), "Must be same type");
using (var borrowed = ListPool <IGetterAndSetter> .Borrow())
{
foreach (var member in settings.GetMembers(source.GetType()))
{
if (settings.IsIgnoringMember(member))
{
continue;
}
var getterAndSetter = settings.GetOrCreateGetterAndSetter(member);
Member(source, target, settings, referencePairs, getterAndSetter);
if (getterAndSetter.IsInitOnly)
{
borrowed.Value.Add(getterAndSetter);
}
}
foreach (var getterAndSetter in borrowed.Value)
{
var sv = getterAndSetter.GetValue(source);
var tv = getterAndSetter.GetValue(target);
if (!EqualBy.MemberValues(sv, tv, settings))
{
Throw.ReadonlyMemberDiffers(new SourceAndTargetValue(source, sv, target, tv), getterAndSetter.Member, settings);
}
}
}
}
internal static bool MemberValues <T>(
T x,
T y,
MemberSettings settings,
ReferencePairCollection referencePairs)
{
bool result;
if (TryGetValueEquals(x, y, settings, out result))
{
return(result);
}
referencePairs?.Add(x, y);
if (x is IEnumerable)
{
if (!EnumerableEquals(x, y, settings, referencePairs))
{
return(false);
}
}
foreach (var member in settings.GetMembers(x.GetType()))
{
if (settings.IsIgnoringMember(member))
{
continue;
}
var getterAndSetter = settings.GetOrCreateGetterAndSetter(member);
bool equal;
object yv;
object xv;
if (getterAndSetter.TryGetValueEquals(x, y, settings, out equal, out xv, out yv))
{
if (!equal)
{
return(false);
}
continue;
}
if (member.MemberType().IsClass&& referencePairs?.Contains(xv, yv) == true)
{
continue;
}
if (!MemberValueEquals(xv, yv, member, settings, referencePairs))
{
return(false);
}
}
return(true);
}
private static void Member <T>(
T source,
T target,
MemberSettings settings,
ReferencePairCollection referencePairs,
MemberInfo member)
{
if (settings.IsIgnoringMember(member))
{
return;
}
var getterAndSetter = settings.GetOrCreateGetterAndSetter(member);
Member(source, target, settings, referencePairs, getterAndSetter);
}
internal static void UpdateMemberDiff(
this DiffBuilder builder,
object xSource,
object ySource,
MemberInfo member,
MemberSettings settings)
{
if (settings.IsIgnoringMember(member))
{
return;
}
var getterAndSetter = settings.GetOrCreateGetterAndSetter(member);
if (getterAndSetter.TryGetValueEquals(xSource, ySource, settings, out var equal, out var xValue, out var yValue))
{
if (equal)
{
builder.Remove(member);
}
else
{
builder.TryAdd(member, xValue, yValue);
}
return;
}
switch (settings.ReferenceHandling)
{
case ReferenceHandling.References:
if (ReferenceEquals(xValue, yValue))
{
builder.Remove(member);
}
else
{
builder.TryAdd(member, xValue, yValue);
}
return;
case ReferenceHandling.Structural:
IRefCounted <DiffBuilder> subDiffBuilder;
if (DiffBuilder.TryCreate(xValue, yValue, settings, out subDiffBuilder))
{
subDiffBuilder.Value.UpdateDiffs(xValue, yValue, settings);
}
builder.AddLazy(member, subDiffBuilder.Value);
return;
case ReferenceHandling.Throw:
throw Throw.ShouldNeverGetHereException();
default:
throw new ArgumentOutOfRangeException(
nameof(settings.ReferenceHandling),
settings.ReferenceHandling,
null);
}
}
