Mappings.cs source code in C# .NET

                        
Code:
                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Xml / System / Xml / Serialization / Mappings.cs / 5 / Mappings.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
//-----------------------------------------------------------------------------
 
namespace System.Xml.Serialization { 

    using System.Reflection; 
    using System.Collections;
    using System.Xml.Schema;
    using System;
    using System.Text; 
    using System.ComponentModel;
    using System.Xml; 
    using System.CodeDom.Compiler; 

    // These classes represent a mapping between classes and a particular XML format. 
    // There are two class of mapping information: accessors (such as elements and
    // attributes), and mappings (which specify the type of an accessor).

    internal abstract class Accessor { 
        string name;
        object defaultValue = null; 
        string ns; 
        TypeMapping mapping;
        bool any; 
        string anyNs;
        bool topLevelInSchema;
        bool isFixed;
        bool isOptional; 
        XmlSchemaForm form = XmlSchemaForm.None;
 
        internal Accessor() { } 

        internal TypeMapping Mapping { 
            get { return mapping; }
            set { mapping = value; }
        }
 
        internal object Default {
            get { return defaultValue; } 
            set { defaultValue = value; } 
        }
 
        internal bool HasDefault {
            get { return defaultValue != null && defaultValue != DBNull.Value; }
        }
 
        internal virtual string Name {
            get { return name == null ? string.Empty : name; } 
            set { name = value; } 
        }
 
        internal bool Any {
            get { return any; }
            set { any = value; }
        } 

        internal string AnyNamespaces { 
            get { return anyNs; } 
            set { anyNs = value; }
        } 

        internal string Namespace {
            get { return ns; }
            set { ns = value; } 
        }
 
        internal XmlSchemaForm Form { 
            get { return form; }
            set { form = value; } 
        }

        internal bool IsFixed {
            get { return isFixed; } 
            set { isFixed = value; }
        } 
 
        internal bool IsOptional {
            get { return isOptional; } 
            set { isOptional = value; }
        }

        internal bool IsTopLevelInSchema { 
            get { return topLevelInSchema; }
            set { topLevelInSchema = value; } 
        } 

        internal static string EscapeName(string name) { 
            if (name == null || name.Length == 0) return name;
            return XmlConvert.EncodeLocalName(name);
        }
 
        internal static string EscapeQName(string name) {
            if (name == null || name.Length == 0) return name; 
            int colon = name.LastIndexOf(':'); 
            if (colon < 0)
                return XmlConvert.EncodeLocalName(name); 
            else {
                if (colon == 0 || colon == name.Length - 1)
                    throw new ArgumentException(Res.GetString(Res.Xml_InvalidNameChars, name), "name");
                return new XmlQualifiedName(XmlConvert.EncodeLocalName(name.Substring(colon + 1)), XmlConvert.EncodeLocalName(name.Substring(0, colon))).ToString(); 
            }
        } 
 
        internal static string UnescapeName(string name) {
            return XmlConvert.DecodeName(name); 
        }

        internal string ToString(string defaultNs) {
            if (Any) { 
                return (Namespace == null ? "##any" : Namespace) + ":" + Name;
            } 
            else { 
                return Namespace == defaultNs ? Name : Namespace + ":" + Name;
            } 
        }
    }

    internal class ElementAccessor : Accessor { 
        bool nullable;
        bool isSoap; 
        bool unbounded = false; 

        internal bool IsSoap { 
            get { return isSoap; }
            set { isSoap = value; }
        }
 
        internal bool IsNullable {
            get { return nullable; } 
            set { nullable = value; } 
        }
 
        internal bool IsUnbounded {
            get { return unbounded; }
            set { unbounded = value; }
        } 

        internal ElementAccessor Clone() { 
            ElementAccessor newAccessor = new ElementAccessor(); 
            newAccessor.nullable = this.nullable;
            newAccessor.IsTopLevelInSchema = this.IsTopLevelInSchema; 
            newAccessor.Form = this.Form;
            newAccessor.isSoap = this.isSoap;
            newAccessor.Name = this.Name;
            newAccessor.Default = this.Default; 
            newAccessor.Namespace = this.Namespace;
            newAccessor.Mapping = this.Mapping; 
            newAccessor.Any = this.Any; 

            return newAccessor; 
        }
    }

    internal class ChoiceIdentifierAccessor : Accessor { 
        string memberName;
        string[] memberIds; 
 
        internal string MemberName {
            get { return memberName; } 
            set { memberName = value; }
        }

        internal string[] MemberIds { 
            get { return memberIds; }
            set { memberIds = value; } 
        } 

    } 

    internal class TextAccessor : Accessor {
    }
 
    internal class XmlnsAccessor : Accessor {
    } 
 
    internal class AttributeAccessor : Accessor {
        bool isSpecial; 
        bool isList;

        internal bool IsSpecialXmlNamespace {
            get { return isSpecial; } 
        }
 
        internal bool IsList { 
            get { return isList; }
            set { isList = value; } 
        }

        internal void CheckSpecial() {
            int colon = Name.LastIndexOf(':'); 

            if (colon >= 0) { 
                if (!Name.StartsWith("xml:", StringComparison.Ordinal)) { 
                    throw new InvalidOperationException(Res.GetString(Res.Xml_InvalidNameChars, Name));
                } 
                Name = Name.Substring("xml:".Length);
                Namespace = XmlReservedNs.NsXml;
                isSpecial = true;
            } 
            else {
                if (Namespace == XmlReservedNs.NsXml) { 
                    isSpecial = true; 
                }
                else { 
                    isSpecial = false;
                }
            }
            if (isSpecial) { 
                Form = XmlSchemaForm.Qualified;
            } 
        } 
    }
 
    internal abstract class Mapping {
        bool isSoap;

        internal Mapping() { } 

        internal bool IsSoap { 
            get { return isSoap; } 
            set { isSoap = value; }
        } 
    }

    internal abstract class TypeMapping : Mapping {
        TypeDesc typeDesc; 
        string typeNs;
        string typeName; 
        bool referencedByElement; 
        bool referencedByTopLevelElement;
        bool includeInSchema = true; 
        bool reference = false;

        internal bool ReferencedByTopLevelElement {
            get { return referencedByTopLevelElement; } 
            set { referencedByTopLevelElement = value; }
        } 
 
        internal bool ReferencedByElement {
            get { return referencedByElement || referencedByTopLevelElement; } 
            set { referencedByElement = value; }
        }
        internal string Namespace {
            get { return typeNs; } 
            set { typeNs = value; }
        } 
 
        internal string TypeName {
            get { return typeName; } 
            set { typeName = value; }
        }

        internal TypeDesc TypeDesc { 
            get { return typeDesc; }
            set { typeDesc = value; } 
        } 

        internal bool IncludeInSchema { 
            get { return includeInSchema; }
            set { includeInSchema = value; }
        }
 
        internal virtual bool IsList {
            get { return false; } 
            set { } 
        }
 
        internal bool IsReference {
            get { return reference; }
            set { reference = value; }
        } 

        internal bool IsAnonymousType { 
            get { return typeName == null || typeName.Length == 0; } 
        }
 
        internal virtual string DefaultElementName {
            get { return IsAnonymousType ?  XmlConvert.EncodeLocalName(typeDesc.Name) : typeName; }
        }
    } 

    internal class PrimitiveMapping : TypeMapping { 
        bool isList; 

        internal override bool IsList { 
            get { return isList; }
            set { isList = value; }
        }
    } 

    internal class NullableMapping : TypeMapping { 
        TypeMapping baseMapping; 

        internal TypeMapping BaseMapping { 
            get { return baseMapping; }
            set { baseMapping = value; }
        }
 
        internal override string DefaultElementName {
            get { return BaseMapping.DefaultElementName; } 
        } 
    }
 
    internal class ArrayMapping : TypeMapping {
        ElementAccessor[] elements;
        ElementAccessor[] sortedElements;
        ArrayMapping next; 
        StructMapping topLevelMapping;
 
        internal ElementAccessor[] Elements { 
            get { return elements; }
            set { elements = value; sortedElements = null; } 
        }

        internal ElementAccessor[] ElementsSortedByDerivation {
            get { 
                if (sortedElements != null)
                    return sortedElements; 
                if (elements == null) 
                    return null;
                sortedElements = new ElementAccessor[elements.Length]; 
                Array.Copy(elements, 0, sortedElements, 0, elements.Length);
                AccessorMapping.SortMostToLeastDerived(sortedElements);
                return sortedElements;
            } 
        }
 
 
        internal ArrayMapping Next {
            get { return next; } 
            set { next = value; }
        }

        internal StructMapping TopLevelMapping { 
            get { return topLevelMapping; }
            set { topLevelMapping = value; } 
        } 
    }
 
    internal class EnumMapping : PrimitiveMapping {
        ConstantMapping[] constants;
        bool isFlags;
 
        internal bool IsFlags {
            get { return isFlags; } 
            set { isFlags = value; } 
        }
 
        internal ConstantMapping[] Constants {
            get { return constants; }
            set { constants = value; }
        } 
    }
 
    internal class ConstantMapping : Mapping { 
        string xmlName;
        string name; 
        long value;

        internal string XmlName {
            get { return xmlName== null ? string.Empty : xmlName; } 
            set { xmlName = value; }
        } 
 
        internal string Name {
            get { return name == null ? string.Empty : name; } 
            set { this.name = value; }
        }

        internal long Value { 
            get { return value; }
            set { this.value = value; } 
        } 
    }
 
    internal class StructMapping : TypeMapping, INameScope {
        MemberMapping[] members;
        StructMapping baseMapping;
        StructMapping derivedMappings; 
        StructMapping nextDerivedMapping;
        MemberMapping xmlnsMember = null; 
        bool hasSimpleContent; 
        bool openModel;
        bool isSequence; 
        NameTable elements;
        NameTable attributes;
        CodeIdentifiers scope;
 
        internal StructMapping BaseMapping {
            get { return baseMapping; } 
            set { 
                baseMapping = value;
                if (!IsAnonymousType && baseMapping != null) { 
                    nextDerivedMapping = baseMapping.derivedMappings;
                    baseMapping.derivedMappings = this;
                }
                if (value.isSequence && !isSequence) { 
                    isSequence = true;
                    if (baseMapping.IsSequence) { 
                        for (StructMapping derived = derivedMappings; derived != null; derived = derived.NextDerivedMapping) { 
                            derived.SetSequence();
                        } 
                    }
                }
            }
        } 

        internal StructMapping DerivedMappings { 
            get { return derivedMappings; } 
        }
 
        internal NameTable LocalElements {
            get {
                if (elements == null)
                    elements = new NameTable(); 
                return elements;
            } 
        } 
        internal NameTable LocalAttributes {
            get { 
                if (attributes == null)
                    attributes = new NameTable();
                return attributes;
            } 
        }
        object INameScope.this[string name, string ns] { 
            get { 
                object named = LocalElements[name, ns];
                if (named != null) 
                    return named;
                if (baseMapping != null)
                    return ((INameScope)baseMapping)[name, ns];
                return null; 
            }
            set { 
                LocalElements[name, ns] = value; 
            }
        } 
        internal StructMapping NextDerivedMapping {
            get { return nextDerivedMapping; }
        }
 
        internal bool HasSimpleContent {
            get { return hasSimpleContent; } 
        } 

        internal bool HasXmlnsMember { 
            get {
                StructMapping mapping = this;
                while (mapping != null) {
                    if (mapping.XmlnsMember != null) 
                        return true;
                    mapping = mapping.BaseMapping; 
                } 
                return false;
            } 
        }

        internal MemberMapping[] Members {
            get { return members; } 
            set { members = value; }
        } 
 
        internal MemberMapping XmlnsMember {
            get { return xmlnsMember; } 
            set { xmlnsMember = value; }
        }

        internal bool IsOpenModel { 
            get { return openModel; }
            set { openModel = value; } 
        } 

        internal CodeIdentifiers Scope { 
            get {
                if (scope == null)
                    scope = new CodeIdentifiers();
                return scope; 
            }
            set { scope = value; } 
        } 

        internal MemberMapping FindDeclaringMapping(MemberMapping member, out StructMapping declaringMapping, string parent) { 
            declaringMapping = null;
            if (BaseMapping != null) {
                MemberMapping baseMember =  BaseMapping.FindDeclaringMapping(member, out declaringMapping, parent);
                if (baseMember != null) return baseMember; 
            }
            if (members == null) return null; 
 
            for (int i = 0; i < members.Length; i++) {
                if (members[i].Name == member.Name) { 
                    if (members[i].TypeDesc != member.TypeDesc)
                        throw new InvalidOperationException(Res.GetString(Res.XmlHiddenMember, parent, member.Name, member.TypeDesc.FullName, this.TypeName, members[i].Name, members[i].TypeDesc.FullName));
                    else if (!members[i].Match(member)) {
                        throw new InvalidOperationException(Res.GetString(Res.XmlInvalidXmlOverride, parent, member.Name, this.TypeName, members[i].Name)); 
                    }
                    declaringMapping = this; 
                    return members[i]; 
                }
            } 
            return null;
        }
        internal bool Declares(MemberMapping member, string parent) {
            StructMapping m; 
            return (FindDeclaringMapping(member, out m, parent) != null);
        } 
 
        internal void SetContentModel(TextAccessor text, bool hasElements) {
            if (BaseMapping == null || BaseMapping.TypeDesc.IsRoot) { 
                hasSimpleContent = !hasElements && text != null && !text.Mapping.IsList;
            }
            else if (BaseMapping.HasSimpleContent) {
                if (text != null || hasElements) { 
                    // we can only extent a simleContent type with attributes
                    throw new InvalidOperationException(Res.GetString(Res.XmlIllegalSimpleContentExtension, TypeDesc.FullName, BaseMapping.TypeDesc.FullName)); 
                } 
                else {
                    hasSimpleContent = true; 
                }
            }
            else {
                hasSimpleContent = false; 
            }
            if (!hasSimpleContent && text != null && !text.Mapping.TypeDesc.CanBeTextValue) { 
                throw new InvalidOperationException(Res.GetString(Res.XmlIllegalTypedTextAttribute, TypeDesc.FullName, text.Name, text.Mapping.TypeDesc.FullName)); 
            }
        } 

        internal bool HasElements {
            get { return elements != null && elements.Values.Count > 0; }
        } 

        internal bool HasExplicitSequence() { 
            if (members != null) { 
                for (int i = 0; i < members.Length; i++) {
                    if (members[i].IsParticle && members[i].IsSequence) { 
                        return true;
                    }
                }
            } 
            return (baseMapping != null && baseMapping.HasExplicitSequence());
        } 
 
        internal void SetSequence() {
            if (TypeDesc.IsRoot) 
                return;

            StructMapping start = this;
 
            // find first mapping that does not have the sequence set
            while (!start.BaseMapping.IsSequence && start.BaseMapping != null && !start.BaseMapping.TypeDesc.IsRoot) 
                start = start.BaseMapping; 

            start.IsSequence = true; 
            for (StructMapping derived = start.DerivedMappings; derived != null; derived = derived.NextDerivedMapping) {
                derived.SetSequence();
            }
        } 

        internal bool IsSequence 
        { 
            get { return isSequence && !TypeDesc.IsRoot; }
            set { isSequence = value; } 
        }
    }

    internal abstract class AccessorMapping : Mapping { 
        TypeDesc typeDesc;
        AttributeAccessor attribute; 
        ElementAccessor[] elements; 
        ElementAccessor[] sortedElements;
        TextAccessor text; 
        ChoiceIdentifierAccessor choiceIdentifier;
        XmlnsAccessor xmlns;
        bool ignore;
 
        internal bool IsAttribute {
            get { return attribute != null; } 
        } 

        internal bool IsText { 
            get { return text != null && (elements == null || elements.Length == 0); }
        }

        internal bool IsParticle { 
            get { return (elements != null && elements.Length > 0); }
        } 
 
        internal TypeDesc TypeDesc {
            get { return typeDesc; } 
            set { typeDesc = value; }
        }

        internal AttributeAccessor Attribute { 
            get { return attribute; }
            set { attribute = value; } 
        } 

        internal ElementAccessor[] Elements { 
            get { return elements; }
            set { elements = value; sortedElements = null; }
        }
 
        internal static void SortMostToLeastDerived(ElementAccessor[] elements) {
            Array.Sort(elements, new AccessorComparer()); 
        } 

        internal class AccessorComparer : IComparer { 
            public int Compare(object o1, object o2) {
                if (o1 == o2)
                    return 0;
                Accessor a1 = (Accessor)o1; 
                Accessor a2 = (Accessor)o2;
                int w1 = a1.Mapping.TypeDesc.Weight; 
                int w2 = a2.Mapping.TypeDesc.Weight; 
                if (w1 == w2)
                    return 0; 
                if (w1 < w2)
                    return 1;
                return -1;
            } 
        }
 
        internal ElementAccessor[] ElementsSortedByDerivation { 
            get {
                if (sortedElements != null) 
                    return sortedElements;
                if (elements == null)
                    return null;
                sortedElements = new ElementAccessor[elements.Length]; 
                Array.Copy(elements, 0, sortedElements, 0, elements.Length);
                SortMostToLeastDerived(sortedElements); 
                return sortedElements; 
            }
        } 

        internal TextAccessor Text {
            get { return text; }
            set { text = value; } 
        }
 
        internal ChoiceIdentifierAccessor ChoiceIdentifier { 
            get { return choiceIdentifier; }
            set { choiceIdentifier = value; } 
        }

        internal XmlnsAccessor Xmlns {
            get { return xmlns; } 
            set { xmlns = value; }
        } 
 
        internal bool Ignore {
            get { return ignore; } 
            set { ignore = value; }
        }

        internal Accessor Accessor { 
            get {
                if (xmlns != null) return xmlns; 
                if (attribute != null) return attribute; 
                if (elements != null && elements.Length > 0) return elements[0];
                return text; 
            }
        }

        static bool IsNeedNullableMember(ElementAccessor element) { 
            if (element.Mapping is ArrayMapping) {
                ArrayMapping arrayMapping = (ArrayMapping)element.Mapping; 
                if (arrayMapping.Elements != null && arrayMapping.Elements.Length == 1) { 
                    return IsNeedNullableMember(arrayMapping.Elements[0]);
                } 
                return false;
            }
            else {
                return element.IsNullable && element.Mapping.TypeDesc.IsValueType; 
            }
        } 
 
        internal bool IsNeedNullable {
            get { 
                if (xmlns != null) return false;
                if (attribute != null) return false;
                if (elements != null && elements.Length == 1) {
                    return IsNeedNullableMember(elements[0]); 
                }
                return false; 
            } 
        }
 
        internal static bool ElementsMatch(ElementAccessor[] a, ElementAccessor[] b) {
            if (a == null) {
                if (b == null)
                    return true; 
                return false;
            } 
            if (b == null) 
                return false;
            if (a.Length != b.Length) 
                return false;
            for (int i = 0; i < a.Length; i++) {
                if (a[i].Name != b[i].Name || a[i].Namespace != b[i].Namespace || a[i].Form != b[i].Form || a[i].IsNullable != b[i].IsNullable)
                    return false; 
            }
            return true; 
        } 

        internal bool Match(AccessorMapping mapping) { 
            if (Elements != null && Elements.Length > 0) {
                if (!ElementsMatch(Elements, mapping.Elements)) {
                    return false;
                } 
                if (Text == null) {
                    return (mapping.Text == null); 
                } 
            }
            if (Attribute != null) { 
                if (mapping.Attribute == null)
                    return false;
                return (Attribute.Name == mapping.Attribute.Name && Attribute.Namespace == mapping.Attribute.Namespace && Attribute.Form == mapping.Attribute.Form);
            } 
            if (Text != null) {
                return (mapping.Text != null); 
            } 
            return (mapping.Accessor == null);
        } 
    }

    internal class MemberMappingComparer : IComparer {
        public int Compare(object o1, object o2) { 
            MemberMapping m1 = (MemberMapping)o1;
            MemberMapping m2 = (MemberMapping)o2; 
 
            bool m1Text = m1.IsText;
            if (m1Text) { 
                if (m2.IsText)
                    return 0;
                return 1;
            } 
            else if (m2.IsText)
                return -1; 
 
            if (m1.SequenceId < 0 && m2.SequenceId < 0)
                return 0; 
            if (m1.SequenceId < 0)
                return 1;
            if (m2.SequenceId < 0)
                return -1; 
            if (m1.SequenceId < m2.SequenceId)
                return -1; 
            if (m1.SequenceId > m2.SequenceId) 
                return 1;
            return 0; 
        }
    }

    internal class MemberMapping : AccessorMapping { 
        string name;
        bool checkShouldPersist; 
        SpecifiedAccessor checkSpecified; 
        bool isReturnValue;
        bool readOnly = false; 
        int sequenceId = -1;

        internal bool CheckShouldPersist {
            get { return checkShouldPersist; } 
            set { checkShouldPersist = value; }
        } 
 
        internal SpecifiedAccessor CheckSpecified {
            get { return checkSpecified; } 
            set { checkSpecified = value; }
        }

        internal string Name { 
            get { return name == null ? string.Empty : name; }
            set { name = value; } 
        } 

        internal bool IsReturnValue { 
            get { return isReturnValue; }
            set { isReturnValue = value; }
        }
 
        internal bool ReadOnly {
            get { return readOnly; } 
            set { readOnly = value; } 
        }
 
        internal bool IsSequence {
            get { return sequenceId >= 0; }
        }
 
        internal int SequenceId {
            get { return sequenceId; } 
            set { sequenceId = value; } 
        }
 
        string GetNullableType(TypeDesc td) {
            // SOAP encoded arrays not mapped to Nullable since they always derive from soapenc:Array
            if (td.IsMappedType || (!td.IsValueType && (Elements[0].IsSoap || td.ArrayElementTypeDesc == null)))
                return td.FullName; 
            if (td.ArrayElementTypeDesc != null) {
                return GetNullableType(td.ArrayElementTypeDesc) + "[]"; 
            } 
            return "System.Nullable`1[" + td.FullName + "]";
        } 

        internal string GetTypeName(CodeDomProvider codeProvider) {
            if (IsNeedNullable && codeProvider.Supports(GeneratorSupport.GenericTypeReference)) {
                return GetNullableType(TypeDesc); 
            }
            return TypeDesc.FullName; 
        } 
    }
 
    internal class MembersMapping : TypeMapping {
        MemberMapping[] members;
        bool hasWrapperElement = true;
        bool validateRpcWrapperElement; 
        bool writeAccessors = true;
        MemberMapping xmlnsMember = null; 
 
        internal MemberMapping[] Members {
            get { return members; } 
            set { members = value; }
        }

        internal MemberMapping XmlnsMember { 
            get { return xmlnsMember; }
            set { xmlnsMember = value; } 
        } 

        internal bool HasWrapperElement { 
            get { return hasWrapperElement; }
            set { hasWrapperElement = value; }
        }
 
        internal bool ValidateRpcWrapperElement {
            get { return validateRpcWrapperElement; } 
            set { validateRpcWrapperElement = value; } 
        }
 
        internal bool WriteAccessors {
            get { return writeAccessors; }
            set { writeAccessors = value; }
        } 
    }
 
    internal class SpecialMapping : TypeMapping { 
        bool namedAny;
 
        internal bool NamedAny {
            get { return namedAny; }
            set { namedAny = value; }
        } 
    }
 
    internal class SerializableMapping : SpecialMapping { 
        XmlSchema schema;
        Type type; 
        bool needSchema = true;

        // new implementation of the IXmlSerializable
        MethodInfo getSchemaMethod; 
        XmlQualifiedName xsiType;
        XmlSchemaType xsdType; 
        XmlSchemaSet schemas; 
        bool any;
        string namespaces; 

        SerializableMapping baseMapping;
        SerializableMapping derivedMappings;
        SerializableMapping nextDerivedMapping; 
        SerializableMapping next; // all mappings with the same qname
 
        internal SerializableMapping() {} 
        internal SerializableMapping(MethodInfo getSchemaMethod, bool any, string ns) {
            this.getSchemaMethod = getSchemaMethod; 
            this.any = any;
            this.Namespace = ns;
            needSchema = getSchemaMethod != null;
        } 

        internal SerializableMapping(XmlQualifiedName xsiType, XmlSchemaSet schemas) { 
            this.xsiType = xsiType; 
            this.schemas = schemas;
            this.TypeName = xsiType.Name; 
            this.Namespace = xsiType.Namespace;
            needSchema = false;
        }
 
        internal void SetBaseMapping(SerializableMapping mapping) {
            baseMapping = mapping; 
            if (baseMapping != null) { 
                nextDerivedMapping = baseMapping.derivedMappings;
                baseMapping.derivedMappings = this; 
                if (this == nextDerivedMapping) {
                    throw new InvalidOperationException(Res.GetString(Res.XmlCircularDerivation, TypeDesc.FullName));
                }
            } 
        }
 
        internal bool IsAny { 
            get {
                if (any) 
                    return true;
                if (getSchemaMethod == null)
                    return false;
                if (needSchema && typeof(XmlSchemaType).IsAssignableFrom(getSchemaMethod.ReturnType)) 
                    return false;
                RetrieveSerializableSchema(); 
                return any; 
            }
        } 

        internal string NamespaceList {
            get {
                RetrieveSerializableSchema(); 
                if (namespaces == null) {
                    if (schemas != null) { 
                        StringBuilder anyNamespaces = new StringBuilder(); 
                        foreach (XmlSchema s in schemas.Schemas()) {
                            if (s.TargetNamespace != null && s.TargetNamespace.Length > 0) { 
                                if (anyNamespaces.Length > 0)
                                    anyNamespaces.Append(" ");
                                anyNamespaces.Append(s.TargetNamespace);
                            } 
                        }
                        namespaces = anyNamespaces.ToString(); 
                    } 
                    else {
                        namespaces = string.Empty; 
                    }
                }
                return namespaces;
            } 
        }
 
        internal SerializableMapping DerivedMappings { 
            get {
                return derivedMappings; 
            }
        }

        internal SerializableMapping NextDerivedMapping { 
            get {
                return nextDerivedMapping; 
            } 
        }
 
        internal SerializableMapping Next {
            get { return next; }
            set { next = value; }
        } 

        internal Type Type { 
            get { return type; } 
            set { type = value; }
        } 

        internal XmlSchemaSet Schemas {
            get {
                RetrieveSerializableSchema(); 
                return schemas;
            } 
        } 

        internal XmlSchema Schema { 
            get {
                RetrieveSerializableSchema();
                return schema;
            } 
        }
 
        internal XmlQualifiedName XsiType { 
            get {
                if (!needSchema) 
                    return xsiType;
                if (getSchemaMethod == null)
                    return null;
                if (typeof(XmlSchemaType).IsAssignableFrom(getSchemaMethod.ReturnType)) 
                    return null;
                RetrieveSerializableSchema(); 
                return xsiType; 
            }
        } 

        internal XmlSchemaType XsdType {
            get {
                RetrieveSerializableSchema(); 
                return xsdType;
            } 
        } 

        internal static void ValidationCallbackWithErrorCode (object sender, ValidationEventArgs args) { 
            //
            if (args.Severity == XmlSeverityType.Error)
                throw new InvalidOperationException(Res.GetString(Res.XmlSerializableSchemaError, typeof(IXmlSerializable).Name, args.Message));
        } 

        internal void CheckDuplicateElement(XmlSchemaElement element, string elementNs) { 
            if (element == null) 
                return;
 
            // only check duplicate definitions for top-level element
            if (element.Parent == null || !(element.Parent is XmlSchema))
                return;
 
            XmlSchemaObjectTable elements = null;
            if (Schema != null && Schema.TargetNamespace == elementNs) { 
                XmlSchemas.Preprocess(Schema); 
                elements = Schema.Elements;
            } 
            else if (Schemas != null) {
                elements = Schemas.GlobalElements;
            }
            else { 
                return;
            } 
            foreach (XmlSchemaElement e in elements.Values) { 
                if (e.Name == element.Name && e.QualifiedName.Namespace == elementNs) {
                    if (Match(e, element)) 
                        return;
                    // XmlSerializableRootDupName=Cannot reconcile schema for '{0}'. Please use [XmlRoot] attribute to change name or namepace of the top-level element to avoid duplicate element declarations: element name='{1} namespace='{2}'.
                    throw new InvalidOperationException(Res.GetString(Res.XmlSerializableRootDupName, getSchemaMethod.DeclaringType.FullName, e.Name, elementNs));
                } 
            }
        } 
 
        bool Match (XmlSchemaElement e1, XmlSchemaElement e2) {
            if (e1.IsNillable != e2.IsNillable) 
                return false;
            if (e1.RefName != e2.RefName)
                return false;
            if (e1.SchemaType != e2.SchemaType) 
                return false;
            if (e1.SchemaTypeName != e2.SchemaTypeName) 
                return false; 
            if (e1.MinOccurs != e2.MinOccurs)
                return false; 
            if (e1.MaxOccurs != e2.MaxOccurs)
                return false;
            if (e1.IsAbstract != e2.IsAbstract)
                return false; 
            if (e1.DefaultValue != e2.DefaultValue)
                return false; 
            if (e1.SubstitutionGroup != e2.SubstitutionGroup) 
                return false;
            return true; 
        }

        void RetrieveSerializableSchema() {
            if (needSchema) { 
                needSchema = false;
                if (getSchemaMethod != null) { 
                    // get the type info 
                    if (schemas == null)
                        schemas = new XmlSchemaSet(); 
                    object typeInfo = getSchemaMethod.Invoke(null, new object[] {schemas});
                    xsiType = XmlQualifiedName.Empty;

                    if (typeInfo != null) { 
                        if (typeof(XmlSchemaType).IsAssignableFrom(getSchemaMethod.ReturnType)) {
                            xsdType = (XmlSchemaType)typeInfo; 
                            // check if type is named 
                            xsiType = xsdType.QualifiedName;
                        } 
                        else if (typeof(XmlQualifiedName).IsAssignableFrom(getSchemaMethod.ReturnType)) {
                            xsiType = (XmlQualifiedName)typeInfo;
                            if (xsiType.IsEmpty) {
                                throw new InvalidOperationException(Res.GetString(Res.XmlGetSchemaEmptyTypeName, type.FullName, getSchemaMethod.Name)); 
                            }
                        } 
                        else { 
                            throw new InvalidOperationException(Res.GetString(Res.XmlGetSchemaMethodReturnType, type.Name, getSchemaMethod.Name, typeof(XmlSchemaProviderAttribute).Name, typeof(XmlQualifiedName).FullName));
                        } 
                    }
                    else {
                        any = true;
                    } 

                    // make sure that user-specified schemas are valid 
                    schemas.ValidationEventHandler += new ValidationEventHandler (ValidationCallbackWithErrorCode); 
                    schemas.Compile();
                    // at this point we verified that the information returned by the IXmlSerializable is valid 
                    // Now check to see if the type was referenced before:
                    //
                    if (!xsiType.IsEmpty) {
                        // try to find the type in the schemas collection 
                        if (xsiType.Namespace != XmlSchema.Namespace) {
                            ArrayList srcSchemas = (ArrayList)schemas.Schemas(xsiType.Namespace); 
 
                            if (srcSchemas.Count == 0) {
                                throw new InvalidOperationException(Res.GetString(Res.XmlMissingSchema, xsiType.Namespace)); 
                            }
                            if (srcSchemas.Count > 1) {
                                throw new InvalidOperationException(Res.GetString(Res.XmlGetSchemaInclude, xsiType.Namespace, getSchemaMethod.DeclaringType.FullName, getSchemaMethod.Name));
                            } 
                            XmlSchema s = (XmlSchema)srcSchemas[0];
                            if (s == null) { 
                                throw new InvalidOperationException(Res.GetString(Res.XmlMissingSchema, xsiType.Namespace)); 
                            }
                            xsdType = (XmlSchemaType)s.SchemaTypes[xsiType]; 
                            if (xsdType == null) {
                                throw new InvalidOperationException(Res.GetString(Res.XmlGetSchemaTypeMissing, getSchemaMethod.DeclaringType.FullName, getSchemaMethod.Name, xsiType.Name, xsiType.Namespace));
                            }
                            xsdType = xsdType.Redefined != null ? xsdType.Redefined : xsdType; 
                        }
                    } 
                } 
                else {
                    IXmlSerializable serializable = (IXmlSerializable)Activator.CreateInstance(type); 
                    schema = serializable.GetSchema();

                    if (schema != null) {
                        if (schema.Id == null || schema.Id.Length == 0) throw new InvalidOperationException(Res.GetString(Res.XmlSerializableNameMissing1, type.FullName)); 
                    }
                } 
            } 
        }
    } 
}


// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.


                        

                        

                        
                        

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• NavigationCommands.cs
• DocumentGridPage.cs
• XmlSchemaComplexContentRestriction.cs
• DataTableCollection.cs
• ConfigurationValidatorAttribute.cs
• SessionIDManager.cs
• XPathNavigator.cs
• ListViewUpdatedEventArgs.cs
• WebPartMenuStyle.cs
• LinqDataSourceHelper.cs
• AnnotationResourceChangedEventArgs.cs
• OutputCacheSection.cs
• securitycriticaldataformultiplegetandset.cs
• DataBindingExpressionBuilder.cs
• QueryAccessibilityHelpEvent.cs
• CookieProtection.cs
• DirectoryNotFoundException.cs
• HandleRef.cs
• TextUtf8RawTextWriter.cs
• SearchForVirtualItemEventArgs.cs
• ParameterCollection.cs
• RevocationPoint.cs
• DataSourceCache.cs
• _ScatterGatherBuffers.cs
• AddToCollection.cs
• PrivateUnsafeNativeCompoundFileMethods.cs
• SwitchAttribute.cs
• SpanIndex.cs
• CompilerGlobalScopeAttribute.cs
• RowVisual.cs
• PropertyToken.cs
• HandleRef.cs
• PassportIdentity.cs
• SqlGenericUtil.cs
• CapabilitiesPattern.cs
• HttpModulesSection.cs
• BamlReader.cs
• DataBindingHandlerAttribute.cs
• ByteStack.cs
• Pkcs7Signer.cs
• DataGridItem.cs
• PolygonHotSpot.cs
• AssemblyAssociatedContentFileAttribute.cs
• EdmMember.cs
• ConstructorExpr.cs
• Tag.cs
• ImageConverter.cs
• DoubleAnimation.cs
• ServiceDocument.cs
• OleDbConnectionInternal.cs
• DesignerTransaction.cs
• XmlQuerySequence.cs
• XmlToDatasetMap.cs
• EventDescriptor.cs
• LocationUpdates.cs
• PolicyValidator.cs
• FixedHighlight.cs
• UnauthorizedAccessException.cs
• EntityContainerRelationshipSet.cs
• FlowDocumentFormatter.cs
• SizeChangedEventArgs.cs
• TableLayoutSettings.cs
• DataBindingCollection.cs
• TabControlCancelEvent.cs
• ThreadInterruptedException.cs
• _NtlmClient.cs
• TypedDataSourceCodeGenerator.cs
• KeySplineConverter.cs
• _UriTypeConverter.cs
• Converter.cs
• XPathDocumentIterator.cs
• ThreadInterruptedException.cs
• ComplexTypeEmitter.cs
• SafeWaitHandle.cs
• DynamicRendererThreadManager.cs
• CmsInterop.cs
• DataGridViewRowCancelEventArgs.cs
• ContentType.cs
• DotExpr.cs
• ValidatedControlConverter.cs
• TextEvent.cs
• ObjectDataSourceSelectingEventArgs.cs
• MappingMetadataHelper.cs
• MonitorWrapper.cs
• PhysicalAddress.cs
• Track.cs
• RemoteWebConfigurationHost.cs
• ProfileWorkflowElement.cs
• WebPartCancelEventArgs.cs
• DataBoundControlParameterTarget.cs
• SessionPageStateSection.cs
• BodyGlyph.cs
• _IPv6Address.cs
• File.cs
• WebServiceClientProxyGenerator.cs
• ProxyBuilder.cs
• GridViewRowPresenterBase.cs
• PrePrepareMethodAttribute.cs
• configsystem.cs
• RegexCharClass.cs