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XmlSchemaType.cs
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/
XmlSchemaType.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Collections;
using System.ComponentModel;
using System.Diagnostics.CodeAnalysis;
using System.Xml.Serialization;
namespace System.Xml.Schema
{
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public class XmlSchemaType : XmlSchemaAnnotated
{
private string? _name;
private XmlSchemaDerivationMethod _final = XmlSchemaDerivationMethod.None;
private XmlSchemaDerivationMethod _derivedBy;
private XmlSchemaType? _baseSchemaType;
private XmlSchemaDatatype? _datatype;
private XmlSchemaDerivationMethod _finalResolved;
private volatile SchemaElementDecl? _elementDecl;
private volatile XmlQualifiedName _qname = XmlQualifiedName.Empty;
private XmlSchemaType? _redefined;
//compiled information
private XmlSchemaContentType _contentType;
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public static XmlSchemaSimpleType? GetBuiltInSimpleType(XmlQualifiedName qualifiedName)
{
ArgumentNullException.ThrowIfNull(qualifiedName);
return DatatypeImplementation.GetSimpleTypeFromXsdType(qualifiedName);
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public static XmlSchemaSimpleType GetBuiltInSimpleType(XmlTypeCode typeCode)
{
return DatatypeImplementation.GetSimpleTypeFromTypeCode(typeCode);
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public static XmlSchemaComplexType? GetBuiltInComplexType(XmlTypeCode typeCode)
{
if (typeCode == XmlTypeCode.Item)
{
return XmlSchemaComplexType.AnyType;
}
return null;
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
public static XmlSchemaComplexType? GetBuiltInComplexType(XmlQualifiedName qualifiedName)
{
ArgumentNullException.ThrowIfNull(qualifiedName);
if (qualifiedName.Equals(XmlSchemaComplexType.AnyType.QualifiedName))
{
return XmlSchemaComplexType.AnyType;
}
if (qualifiedName.Equals(XmlSchemaComplexType.UntypedAnyType.QualifiedName))
{
return XmlSchemaComplexType.UntypedAnyType;
}
return null;
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlAttribute("name")]
public string? Name
{
get { return _name; }
set { _name = value; }
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlAttribute("final"), DefaultValue(XmlSchemaDerivationMethod.None)]
public XmlSchemaDerivationMethod Final
{
get { return _final; }
set { _final = value; }
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlIgnore]
public XmlQualifiedName QualifiedName
{
get { return _qname; }
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlIgnore]
public XmlSchemaDerivationMethod FinalResolved
{
get { return _finalResolved; }
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlIgnore]
[Obsolete("XmlSchemaType.BaseSchemaType has been deprecated. Use the BaseXmlSchemaType property that returns a strongly typed base schema type instead.")]
public object? BaseSchemaType
{
get
{
if (_baseSchemaType == null)
return null;
if (_baseSchemaType.QualifiedName.Namespace == XmlReservedNs.NsXs)
{
return _baseSchemaType.Datatype;
}
return _baseSchemaType;
}
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlIgnore]
public XmlSchemaType? BaseXmlSchemaType
{
get { return _baseSchemaType; }
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlIgnore]
public XmlSchemaDerivationMethod DerivedBy
{
get { return _derivedBy; }
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlIgnore]
public XmlSchemaDatatype? Datatype
{
get { return _datatype; }
}
/// <devdoc>
/// <para>[To be supplied.]</para>
/// </devdoc>
[XmlIgnore]
public virtual bool IsMixed
{
get { return false; }
set { }
}
[XmlIgnore]
public XmlTypeCode TypeCode
{
get
{
if (this == XmlSchemaComplexType.AnyType)
{
return XmlTypeCode.Item;
}
if (_datatype == null)
{
return XmlTypeCode.None;
}
return _datatype.TypeCode;
}
}
[XmlIgnore]
internal XmlValueConverter ValueConverter
{
get
{
if (_datatype == null)
{ //Default converter
return XmlUntypedConverter.Untyped;
}
return _datatype.ValueConverter;
}
}
[return: NotNullIfNotNull(nameof(schemaSet))]
internal XmlReader? Validate(XmlReader reader, XmlResolver? resolver, XmlSchemaSet schemaSet, ValidationEventHandler valEventHandler)
{
if (schemaSet != null)
{
XmlReaderSettings readerSettings = new XmlReaderSettings();
readerSettings.ValidationType = ValidationType.Schema;
readerSettings.Schemas = schemaSet;
readerSettings.ValidationEventHandler += valEventHandler;
return new XsdValidatingReader(reader, resolver, readerSettings, this);
}
return null;
}
internal XmlSchemaContentType SchemaContentType
{
get
{
return _contentType;
}
}
internal void SetQualifiedName(XmlQualifiedName value)
{
_qname = value;
}
internal void SetFinalResolved(XmlSchemaDerivationMethod value)
{
_finalResolved = value;
}
internal void SetBaseSchemaType(XmlSchemaType? value)
{
_baseSchemaType = value;
}
internal void SetDerivedBy(XmlSchemaDerivationMethod value)
{
_derivedBy = value;
}
internal void SetDatatype(XmlSchemaDatatype? value)
{
_datatype = value;
}
internal SchemaElementDecl? ElementDecl
{
get { return _elementDecl; }
set { _elementDecl = value; }
}
[XmlIgnore]
internal XmlSchemaType? Redefined
{
get { return _redefined; }
set { _redefined = value; }
}
internal virtual XmlQualifiedName DerivedFrom
{
get { return XmlQualifiedName.Empty; }
}
internal void SetContentType(XmlSchemaContentType value)
{
_contentType = value;
}
public static bool IsDerivedFrom([NotNullWhen(true)] XmlSchemaType? derivedType, [NotNullWhen(true)] XmlSchemaType? baseType, XmlSchemaDerivationMethod except)
{
if (derivedType == null || baseType == null)
{
return false;
}
if (derivedType == baseType)
{
return true;
}
if (baseType == XmlSchemaComplexType.AnyType)
{ //Not checking for restriction blocked since all types are implicitly derived by restriction from xs:anyType
return true;
}
do
{
XmlSchemaSimpleType? dt = derivedType as XmlSchemaSimpleType;
XmlSchemaSimpleType? bt = baseType as XmlSchemaSimpleType;
if (bt != null && dt != null)
{ //SimpleTypes
if (bt == DatatypeImplementation.AnySimpleType)
{ //Not checking block=restriction
return true;
}
if ((except & derivedType.DerivedBy) != 0 || !dt.Datatype!.IsDerivedFrom(bt.Datatype!))
{
return false;
}
return true;
}
else
{ //Complex types
if ((except & derivedType.DerivedBy) != 0)
{
return false;
}
derivedType = derivedType.BaseXmlSchemaType;
if (derivedType == baseType)
{
return true;
}
}
} while (derivedType != null);
return false;
}
internal static bool IsDerivedFromDatatype(XmlSchemaDatatype derivedDataType, XmlSchemaDatatype baseDataType, XmlSchemaDerivationMethod except)
{
if (DatatypeImplementation.AnySimpleType.Datatype == baseDataType)
{
return true;
}
return derivedDataType.IsDerivedFrom(baseDataType);
}
[XmlIgnore]
internal override string? NameAttribute
{
get { return Name; }
set { Name = value; }
}
}
}