|
public static FromValueNoError ( |
||
| resultValue | ||
| Результат | ||
/// <summary>
/// Called when a set is attempting to assign to a field or property from a derived class through the base class.
///
/// The default behavior is to allow the assignment.
/// </summary>
public virtual ErrorInfo MakeStaticAssignFromDerivedTypeError(Type accessingType, DynamicMetaObject self, MemberTracker assigning, DynamicMetaObject assignedValue, OverloadResolverFactory context)
{
switch (assigning.MemberType)
{
case TrackerTypes.Property:
PropertyTracker pt = (PropertyTracker)assigning;
MethodInfo setter = pt.GetSetMethod() ?? pt.GetSetMethod(true);
return(ErrorInfo.FromValueNoError(
AstUtils.SimpleCallHelper(
setter,
ConvertExpression(
assignedValue.Expression,
setter.GetParameters()[0].ParameterType,
ConversionResultKind.ExplicitCast,
context
)
)
));
case TrackerTypes.Field:
FieldTracker ft = (FieldTracker)assigning;
return(ErrorInfo.FromValueNoError(
Expression.Assign(
Expression.Field(null, ft.Field),
ConvertExpression(assignedValue.Expression, ft.FieldType, ConversionResultKind.ExplicitCast, context)
)
));
default:
throw new InvalidOperationException();
}
}
/// <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 virtual ErrorInfo MakeEventValidation(MemberGroup members, DynamicMetaObject eventObject, DynamicMetaObject value, OverloadResolverFactory resolverFactory)
{
EventTracker ev = (EventTracker)members[0];
// handles in place addition of events - this validates the user did the right thing.
return(ErrorInfo.FromValueNoError(
Expression.Call(
typeof(BinderOps).GetMethod("SetEvent"),
AstUtils.Constant(ev),
value.Expression
)
));
}
public virtual ErrorInfo MakeEventValidation(MemberGroup members, Expression eventObject, Expression value, Expression codeContext)
{
EventTracker ev = (EventTracker)members[0];
// handles in place addition of events - this validates the user did the right thing.
return(ErrorInfo.FromValueNoError(
Expression.Call(
typeof(BinderOps).GetMethod("SetEvent"),
Expression.Constant(ev),
value
)
));
}
public virtual ErrorInfo MakeEventValidation(RuleBuilder rule, MemberGroup members)
{
EventTracker ev = (EventTracker)members[0];
// handles in place addition of events - this validates the user did the right thing.
return(ErrorInfo.FromValueNoError(
Expression.Call(
typeof(ScriptingRuntimeHelpers).GetMethod("SetEvent"),
Expression.Constant(ev),
rule.Parameters[1]
)
));
}
