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// Copyright (c) Microsoft Corporation. All rights reserved.
//
using System;
using System.Collections.Generic;
using System.Xml;
using System.Xml.XPath;
using System.Compiler;
namespace Microsoft.Ddue.Tools.Reflection {
public class NamespaceFilter
{
#region Member Variables
private bool exposed;
private string name;
private List < TypeFilter > typeFilters = new List < TypeFilter >();
#endregion
#region Constructors
public NamespaceFilter(string name, bool exposed) {
this.name = name;
this.exposed = exposed;
}
public NamespaceFilter(XmlReader configuration) {
if (configuration.Name != "namespace") throw new InvalidOperationException();
name = configuration.GetAttribute("name");
exposed = Convert.ToBoolean(configuration.GetAttribute("expose"));
XmlReader subtree = configuration.ReadSubtree();
while (subtree.Read()) {
if ((subtree.NodeType == XmlNodeType.Element) && (subtree.Name == "type")) {
TypeFilter typeFilter = new TypeFilter(subtree);
typeFilters.Add(typeFilter);
}
}
subtree.Close();
}
#endregion
#region Public API
/// <summary>
/// Gets the number of type filters
/// </summary>
public int TypeFilterCount
{
get
{
return typeFilters.Count;
}
}
public List < TypeFilter > TypeFilters {
get {
return (typeFilters);
{
}
}
}
//Find out if any are exposed incase this class is not exposed
public bool HasExposedMembers(TypeNode type)
{
Namespace space = ReflectionUtilities.GetNamespace(type);
if (IsExposedNamespace(space) != null)
{
foreach (TypeFilter typeFilter in typeFilters)
{
bool? result = typeFilter.IsExposedType(type);
if (result != null) //matched
{
return typeFilter.HasExposedMembers(type);
}
}
}
return false;
}
public bool? IsExposedMember(Member member) {
//Console.WriteLine("DEBUG: namespaceFilter.isExposedMemeber");
TypeNode type = ReflectionUtilities.GetTemplateType(member.DeclaringType);
Namespace space = ReflectionUtilities.GetNamespace(type);
if (IsExposedNamespace(space) != null) {
foreach (TypeFilter typeFilter in typeFilters) {
bool? result = typeFilter.IsExposedMember(member);
if (result != null) return (result);
}
//no filters matched this method, check if the type is exposed
bool? typeIsExposed = IsExposedType(type);
if (typeIsExposed != null) return typeIsExposed;
return (exposed); //if the namespace is exposed
} else {
return (null);
}
}
public bool? IsExposedNamespace(Namespace space) {
if (space.Name.Name == name) {
return (exposed);
} else {
return (null);
}
}
public bool? IsExposedType(TypeNode type) {
Namespace space = ReflectionUtilities.GetNamespace(type);
if (IsExposedNamespace(space) != null) {
foreach (TypeFilter typeFilter in typeFilters) {
bool? result = typeFilter.IsExposedType(type);
if (result != null) return (result);
}
//no filter matches for this type, check the parents since it could be nested
TypeNode parent = type.DeclaringType;
while (parent != null)
{
bool? parentExposed = IsExposedType(parent);
if (parentExposed != null)
return parentExposed;
parent = type.DeclaringType;
}
//no answer for the parents either, the top parent should pass this back above
return (exposed);
} else {
return (null);
}
}
#endregion
}
}
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