private static bool ApplyFilter(Attribute attribute, FilterNode filter)
{
if (filter == null)
{
return(true);
}
return(filter.Eval(attribute));
}
public FilteringBindingProvider(
INameResolver nameResolver,
IBindingProvider inner,
FilterNode description)
{
_nameResolver = nameResolver;
_inner = inner;
_description = description;
}
public FilteringBindingProvider(
IConfiguration configuration,
INameResolver nameResolver,
IBindingProvider inner,
FilterNode description)
{
_configuration = configuration;
_nameResolver = nameResolver;
_inner = inner;
_description = description;
}
public IEnumerable <BindingRule> GetRules()
{
IBindingRuleProvider inner = _inner as IBindingRuleProvider;
if (inner != null)
{
foreach (var rule in inner.GetRules())
{
rule.Filter = FilterNode.And(_description, rule.Filter);
yield return(rule);
}
}
}
public IEnumerable <BindingRule> GetRules()
{
var accessProp = typeof(TAttribute).GetProperty("access", BindingFlags.Instance | BindingFlags.Public | BindingFlags.IgnoreCase);
foreach (var type in new Type[]
{
typeof(Stream),
})
{
yield return(new BindingRule
{
SourceAttribute = typeof(TAttribute),
Filter = FilterNode.NotNull(accessProp), // For stream, Must specify Read vs. Write
UserType = OpenType.FromType(type)
});
}
// Read
foreach (var filter in new FilterNode[]
{
FilterNode.IsEqual(accessProp, FileAccess.Read),
FilterNode.Null(accessProp) // Not write
})
{
foreach (var type in new Type[]
{
typeof(TextReader),
typeof(string),
typeof(byte[])
})
{
yield return(new BindingRule
{
Filter = filter,
SourceAttribute = typeof(TAttribute),
UserType = OpenType.FromType(type)
});
}
}
// Write
foreach (var filter in new FilterNode[]
{
FilterNode.IsEqual(accessProp, FileAccess.Write),
FilterNode.Null(accessProp) // Not Read
})
{
foreach (var type in new Type[]
{
typeof(TextWriter),
typeof(string).MakeByRefType(),
typeof(byte[]).MakeByRefType()
})
{
yield return(new BindingRule
{
Filter = filter,
SourceAttribute = typeof(TAttribute),
UserType = OpenType.FromType(type)
});
}
}
}
