protected override Expression VisitConstant(ConstantExpression node)
{
if (node.CheckNotNull(nameof(node)).Value.AsQueryableResourceTypeOrNull() is Type resourceType)
{
var typeInfo = _typeInfoProvider.GetTypeInfo(resourceType);
var queryableResourceDescriptor = new QueryableResourceDescriptor(typeInfo);
return(new ConstantExpression(queryableResourceDescriptor));
}
if (node.Value is ConstantQueryArgument constantQueryArgument)
{
var copy = new DynamicObject(constantQueryArgument.Value);
foreach (var property in copy.Properties.AsEmptyIfNull())
{
if (property.Value.AsQueryableResourceTypeOrNull() is Type resourceTypePropertyValue)
{
var typeInfo = _typeInfoProvider.GetTypeInfo(resourceTypePropertyValue);
var queryableResourceDescriptor = new QueryableResourceDescriptor(typeInfo);
property.Value = queryableResourceDescriptor;
}
}
return(new ConstantExpression(new ConstantQueryArgument(copy), node.Type));
}
if (node.Value is CancellationToken)
{
var substitutionValue = new SubstitutionValue(node.Type);
return(new ConstantExpression(substitutionValue, node.Type));
}
return(base.VisitConstant(node));
}
public string ValueAsString()
{
if (!IsEnabled || SubstitutionValue == null)
{
return(string.Empty);
}
return(SubstitutionValue.ToString());
}
