Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Xml/System/Xml/Schema/XmlSchemaInfo.cs

@@ -0,0 +1,151 @@
+//------------------------------------------------------------------------------
+// <copyright file="XmlSchemaInfo.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+// <owner current="true" primary="true">[....]</owner> 
+//------------------------------------------------------------------------------
+
+using System.Xml;
+using System.Collections;
+
+namespace System.Xml.Schema {
+
+    /// <include file='doc\IXmlSchemaInfo.uex' path='docs/doc[@for="IXmlSchemaInfo"]/*' />
+    public class XmlSchemaInfo : IXmlSchemaInfo {
+        bool isDefault;
+        bool isNil;
+        XmlSchemaElement schemaElement;
+        XmlSchemaAttribute schemaAttribute;
+        XmlSchemaType schemaType;
+        XmlSchemaSimpleType memberType;
+        XmlSchemaValidity validity;
+        XmlSchemaContentType contentType;
+    
+        public XmlSchemaInfo() {
+            Clear();
+        }
+
+        internal XmlSchemaInfo(XmlSchemaValidity validity) : this() {
+            this.validity = validity;
+        }
+
+        public XmlSchemaValidity Validity {
+            get {
+                return validity;                
+            }
+            set {
+                validity = value;
+            }
+        }
+
+        public bool IsDefault { 
+            get {
+                return isDefault;
+            }
+            set {
+                isDefault = value;
+            }
+        }
+        
+        public bool IsNil { 
+            get {
+                return isNil;
+            }
+            set {
+                isNil = value;
+            }
+        }
+
+        public XmlSchemaSimpleType MemberType { 
+            get {
+                return memberType;
+            }
+            set {
+                memberType = value;
+            }
+        }
+
+        public XmlSchemaType SchemaType {
+            get {
+                return schemaType;
+            }
+            set {
+                schemaType = value;
+                if (schemaType != null) { //Member type will not change its content type
+                    contentType = schemaType.SchemaContentType;
+                }
+                else {
+                    contentType = XmlSchemaContentType.Empty;
+                }
+            }
+        }
+
+        public XmlSchemaElement SchemaElement {
+            get {
+                return schemaElement;
+            }
+            set {
+                schemaElement = value;
+                if (value != null) { //Setting non-null SchemaElement means SchemaAttribute should be null
+                    schemaAttribute = null;
+                }
+            }       
+        }
+
+        public XmlSchemaAttribute SchemaAttribute {
+            get {
+                return schemaAttribute;
+            }
+            set {
+                schemaAttribute = value;
+                if (value != null) { //Setting non-null SchemaAttribute means SchemaElement should be null
+                    schemaElement = null;
+                }
+            }   
+        }
+
+        public XmlSchemaContentType ContentType {
+            get {
+                return contentType;
+            }
+            set {
+                contentType = value;
+            }
+        }
+
+        internal XmlSchemaType XmlType {
+            get {
+                if (memberType != null) {
+                    return memberType;
+                }
+                return schemaType;
+            }
+        }
+
+        internal bool HasDefaultValue {
+            get {
+                return schemaElement != null && schemaElement.ElementDecl.DefaultValueTyped != null;
+            }
+        }
+
+        internal bool IsUnionType {
+            get {
+                if (schemaType == null || schemaType.Datatype == null) {
+                    return false;
+                }
+                return schemaType.Datatype.Variety == XmlSchemaDatatypeVariety.Union;
+            }
+        }
+
+        internal void Clear() {
+            isNil = false;
+            isDefault = false;
+            schemaType = null;
+            schemaElement = null;
+            schemaAttribute = null;
+            memberType = null;
+            validity = XmlSchemaValidity.NotKnown;
+            contentType = XmlSchemaContentType.Empty;
+        }
+    }
+}