|
public abstract GetGetMethod ( ) : |
||
| Résultat | ||
/// <summary>
/// Called when the user is accessing a protected or private member on a get.
///
/// The default implementation allows access to the fields or properties using reflection.
/// </summary>
public virtual ErrorInfo MakeNonPublicMemberGetError(OverloadResolverFactory resolverFactory, MemberTracker member, Type type, DynamicMetaObject instance)
{
switch (member.MemberType)
{
case TrackerTypes.Field:
FieldTracker ft = (FieldTracker)member;
return(ErrorInfo.FromValueNoError(
Ast.Call(
AstUtils.Convert(AstUtils.Constant(ft.Field), typeof(FieldInfo)),
typeof(FieldInfo).GetMethod("GetValue"),
AstUtils.Convert(instance.Expression, typeof(object))
)
));
case TrackerTypes.Property:
PropertyTracker pt = (PropertyTracker)member;
return(ErrorInfo.FromValueNoError(
MemberTracker.FromMemberInfo(pt.GetGetMethod(true)).Call(resolverFactory, this, instance).Expression
));
default:
throw new InvalidOperationException();
}
}
public override ErrorInfo/*!*/ MakeStaticPropertyInstanceAccessError(PropertyTracker/*!*/ tracker, bool isAssignment, IList<Expression/*!*/>/*!*/ parameters) {
ContractUtils.RequiresNotNull(tracker, "tracker");
ContractUtils.RequiresNotNull(parameters, "parameters");
ContractUtils.RequiresNotNullItems(parameters, "parameters");
if (isAssignment) {
return ErrorInfo.FromException(
Ast.Call(
typeof(PythonOps).GetMethod("StaticAssignmentFromInstanceError"),
Ast.Constant(tracker),
Ast.Constant(isAssignment)
)
);
}
return ErrorInfo.FromValue(
Ast.Property(
null,
tracker.GetGetMethod(DomainManager.Configuration.PrivateBinding)
)
);
}
internal static ReflectedGetterSetter GetReflectedProperty(PropertyTracker pt, MemberGroup allProperties, bool privateBinding) {
ReflectedGetterSetter rp;
lock (_propertyCache) {
if (_propertyCache.TryGetValue(pt, out rp)) {
return rp;
}
NameType nt = NameType.PythonProperty;
MethodInfo getter = FilterProtectedGetterOrSetter(pt.GetGetMethod(true), privateBinding);
MethodInfo setter = FilterProtectedGetterOrSetter(pt.GetSetMethod(true), privateBinding);
if ((getter != null && getter.IsDefined(typeof(PythonHiddenAttribute), true)) ||
setter != null && setter.IsDefined(typeof(PythonHiddenAttribute), true)) {
nt = NameType.Property;
}
ExtensionPropertyTracker ept = pt as ExtensionPropertyTracker;
if (ept == null) {
ReflectedPropertyTracker rpt = pt as ReflectedPropertyTracker;
Debug.Assert(rpt != null);
if (PythonBinder.IsExtendedType(pt.DeclaringType) ||
rpt.Property.IsDefined(typeof(PythonHiddenAttribute), true)) {
nt = NameType.Property;
}
if (pt.GetIndexParameters().Length == 0) {
List<MethodInfo> getters = new List<MethodInfo>();
List<MethodInfo> setters = new List<MethodInfo>();
IList<ExtensionPropertyTracker> overriddenProperties = NewTypeMaker.GetOverriddenProperties((getter ?? setter).DeclaringType, pt.Name);
foreach (ExtensionPropertyTracker tracker in overriddenProperties) {
MethodInfo method = tracker.GetGetMethod(privateBinding);
if (method != null) {
getters.Add(method);
}
method = tracker.GetSetMethod(privateBinding);
if (method != null) {
setters.Add(method);
}
}
foreach (PropertyTracker propTracker in allProperties) {
MethodInfo method = propTracker.GetGetMethod(privateBinding);
if (method != null) {
getters.Add(method);
}
method = propTracker.GetSetMethod(privateBinding);
if (method != null) {
setters.Add(method);
}
}
rp = new ReflectedProperty(rpt.Property, getters.ToArray(), setters.ToArray(), nt);
} else {
rp = new ReflectedIndexer(((ReflectedPropertyTracker)pt).Property, NameType.Property, privateBinding);
}
} else {
rp = new ReflectedExtensionProperty(new ExtensionPropertyInfo(pt.DeclaringType, getter ?? setter), nt);
}
_propertyCache[pt] = rp;
return rp;
}
}