NamespaceExpr.cs source code in C# .NET

                        Code:
                         / Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / ndp / fx / src / DataEntity / System / Data / Common / EntitySql / NamespaceExpr.cs / 3 / NamespaceExpr.cs
                        
                        
                            //---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner [....] [....]
//--------------------------------------------------------------------- 
 

namespace System.Data.Common.EntitySql 
{
    using System;
    using System.Globalization;
    using System.Collections; 
    using System.Collections.Generic;
 
    ///  
    /// represents an ast node for namespace declaration
    ///  
    internal sealed class NamespaceExpr : Expr
    {
        private Identifier _namespaceAlias;
        private DottedIdentifier _namespaceName; 

        ///  
        /// initializes ns as single id 
        /// 
        ///  
        internal NamespaceExpr( Identifier identifier )
        {
            _namespaceName = new DottedIdentifier(identifier);
        } 

        ///  
        /// initializes ns as a dotted id 
        /// 
        ///  
        internal NamespaceExpr( DotExpr dotExpr )
        {
            if (!dotExpr.IsDottedIdentifier)
            { 
                throw EntityUtil.EntitySqlError(dotExpr.ErrCtx, System.Data.Entity.Strings.InvalidNamespace);
            } 
 
            _namespaceName = new DottedIdentifier(dotExpr);
        } 

        /// 
        /// initializes aliased ns
        ///  
        /// 
        ///  
        ///  
        /// 
        internal NamespaceExpr( BuiltInExpr bltInExpr ) 
        {
            _namespaceAlias = null;

            Identifier aliasId = bltInExpr.Arg1 as Identifier; 

            if (null == aliasId) 
            { 
                throw EntityUtil.EntitySqlError(bltInExpr.Arg1.ErrCtx, System.Data.Entity.Strings.InvalidNamespaceAlias);
            } 

            if (aliasId.IsEscaped)
            {
                throw EntityUtil.EntitySqlError(aliasId.ErrCtx.QueryText, System.Data.Entity.Strings.InvalidEscapedNamespaceAlias, aliasId.ErrCtx.InputPosition); 
            }
 
            _namespaceAlias = aliasId; 

            if (bltInExpr.Arg2 is Identifier) 
            {
                _namespaceName = new DottedIdentifier((Identifier)bltInExpr.Arg2);
            }
            else if (bltInExpr.Arg2 is DotExpr) 
            {
                DotExpr dotExpr = (DotExpr)bltInExpr.Arg2; 
                if (!dotExpr.IsDottedIdentifier) 
                {
                    throw EntityUtil.EntitySqlError(dotExpr.ErrCtx, System.Data.Entity.Strings.InvalidNamespace); 
                }

                _namespaceName = new DottedIdentifier(dotExpr);
            } 
            else
            { 
                throw EntityUtil.EntitySqlError(bltInExpr.ErrCtx, System.Data.Entity.Strings.InvalidNamespace); 
            }
 
        }

        /// 
        /// returns ns alias id if exists 
        /// 
        internal Identifier AliasIdentifier 
        { 
            get { return _namespaceAlias; }
        } 

        /// 
        /// returns namespace dotted id
        ///  
        internal DottedIdentifier NamespaceName
        { 
            get { return _namespaceName; } 
        }
 
        /// 
        /// returns true if ns is aliased
        /// 
        internal bool IsAliased 
        {
            get { return (null != _namespaceAlias); } 
        } 

    } 
}



// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//---------------------------------------------------------------------- 
// 
//      Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner [....] [....]
//--------------------------------------------------------------------- 
 

namespace System.Data.Common.EntitySql 
{
    using System;
    using System.Globalization;
    using System.Collections; 
    using System.Collections.Generic;
 
    ///  
    /// represents an ast node for namespace declaration
    ///  
    internal sealed class NamespaceExpr : Expr
    {
        private Identifier _namespaceAlias;
        private DottedIdentifier _namespaceName; 

        ///  
        /// initializes ns as single id 
        /// 
        ///  
        internal NamespaceExpr( Identifier identifier )
        {
            _namespaceName = new DottedIdentifier(identifier);
        } 

        ///  
        /// initializes ns as a dotted id 
        /// 
        ///  
        internal NamespaceExpr( DotExpr dotExpr )
        {
            if (!dotExpr.IsDottedIdentifier)
            { 
                throw EntityUtil.EntitySqlError(dotExpr.ErrCtx, System.Data.Entity.Strings.InvalidNamespace);
            } 
 
            _namespaceName = new DottedIdentifier(dotExpr);
        } 

        /// 
        /// initializes aliased ns
        ///  
        /// 
        ///  
        ///  
        /// 
        internal NamespaceExpr( BuiltInExpr bltInExpr ) 
        {
            _namespaceAlias = null;

            Identifier aliasId = bltInExpr.Arg1 as Identifier; 

            if (null == aliasId) 
            { 
                throw EntityUtil.EntitySqlError(bltInExpr.Arg1.ErrCtx, System.Data.Entity.Strings.InvalidNamespaceAlias);
            } 

            if (aliasId.IsEscaped)
            {
                throw EntityUtil.EntitySqlError(aliasId.ErrCtx.QueryText, System.Data.Entity.Strings.InvalidEscapedNamespaceAlias, aliasId.ErrCtx.InputPosition); 
            }
 
            _namespaceAlias = aliasId; 

            if (bltInExpr.Arg2 is Identifier) 
            {
                _namespaceName = new DottedIdentifier((Identifier)bltInExpr.Arg2);
            }
            else if (bltInExpr.Arg2 is DotExpr) 
            {
                DotExpr dotExpr = (DotExpr)bltInExpr.Arg2; 
                if (!dotExpr.IsDottedIdentifier) 
                {
                    throw EntityUtil.EntitySqlError(dotExpr.ErrCtx, System.Data.Entity.Strings.InvalidNamespace); 
                }

                _namespaceName = new DottedIdentifier(dotExpr);
            } 
            else
            { 
                throw EntityUtil.EntitySqlError(bltInExpr.ErrCtx, System.Data.Entity.Strings.InvalidNamespace); 
            }
 
        }

        /// 
        /// returns ns alias id if exists 
        /// 
        internal Identifier AliasIdentifier 
        { 
            get { return _namespaceAlias; }
        } 

        /// 
        /// returns namespace dotted id
        ///  
        internal DottedIdentifier NamespaceName
        { 
            get { return _namespaceName; } 
        }
 
        /// 
        /// returns true if ns is aliased
        /// 
        internal bool IsAliased 
        {
            get { return (null != _namespaceAlias); } 
        } 

    } 
}



// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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NamespaceExpr.cs source code in C# .NET

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