private QueryResult <M> Query <M>(string?optionalName, BindingFlags bindingAttr, Func <M, bool>?optionalPredicate) where M : MemberInfo
{
MemberPolicies <M> policies = MemberPolicies <M> .Default;
bindingAttr = policies.ModifyBindingFlags(bindingAttr);
bool immediateTypeOnly = NeedToSearchImmediateTypeOnly(bindingAttr);
bool ignoreCase = (bindingAttr & BindingFlags.IgnoreCase) != 0;
TypeComponentsCache cache = Cache;
QueriedMemberList <M> queriedMembers;
if (optionalName == null)
{
queriedMembers = cache.GetQueriedMembers <M>(immediateTypeOnly);
}
else
{
queriedMembers = cache.GetQueriedMembers <M>(optionalName, ignoreCase: ignoreCase, immediateTypeOnly: immediateTypeOnly);
}
if (optionalPredicate != null)
{
queriedMembers = queriedMembers.Filter(optionalPredicate);
}
return(new QueryResult <M>(bindingAttr, queriedMembers));
}
//
// If member is a virtual member that implicitly overrides a member in a base class, return the overridden member.
// Otherwise, return null.
//
// - MethodImpls ignored. (I didn't say it made sense, this is just how the desktop api we're porting behaves.)
// - Implemented interfaces ignores. (I didn't say it made sense, this is just how the desktop api we're porting behaves.)
//
public static M GetImplicitlyOverriddenBaseClassMember <M>(this M member) where M : MemberInfo
{
MemberPolicies <M> policies = MemberPolicies <M> .Default;
MethodAttributes visibility;
bool isStatic;
bool isVirtual;
bool isNewSlot;
policies.GetMemberAttributes(member, out visibility, out isStatic, out isVirtual, out isNewSlot);
if (isNewSlot || !isVirtual)
{
return(null);
}
String name = member.Name;
TypeInfo typeInfo = member.DeclaringType.GetTypeInfo();
for (; ;)
{
Type baseType = typeInfo.BaseType;
if (baseType == null)
{
return(null);
}
typeInfo = baseType.GetTypeInfo();
foreach (M candidate in policies.GetDeclaredMembers(typeInfo))
{
if (candidate.Name != name)
{
continue;
}
MethodAttributes candidateVisibility;
bool isCandidateStatic;
bool isCandidateVirtual;
bool isCandidateNewSlot;
policies.GetMemberAttributes(member, out candidateVisibility, out isCandidateStatic, out isCandidateVirtual, out isCandidateNewSlot);
if (!isCandidateVirtual)
{
continue;
}
if (!policies.AreNamesAndSignatureEqual(member, candidate))
{
continue;
}
return(candidate);
}
}
}
