/* ****************************************************************************
*
* Copyright (c) Microsoft Corporation.
*
* This source code is subject to terms and conditions of the Microsoft Public License. A
* copy of the license can be found in the License.html file at the root of this distribution. If
* you cannot locate the Microsoft Public License, please send an email to
* dlr@microsoft.com. By using this source code in any fashion, you are agreeing to be bound
* by the terms of the Microsoft Public License.
*
* You must not remove this notice, or any other, from this software.
*
*
* ***************************************************************************/
#if !CLR2
using System.Linq.Expressions;
#else
using Microsoft.Scripting.Ast;
#endif
using System;
using System.Collections.Generic;
using System.Text;
using System.Dynamic;
using AstUtilsMicrosoft.Scripting.Ast.Utils;
namespace Microsoft.Scripting.Runtime{
public class RestrictedMetaObject : DynamicMetaObject, IRestrictedMetaObject {
public RestrictedMetaObject(Expression expression, BindingRestrictions restriction, object value) : base(expression, restriction, value) {
}
public RestrictedMetaObject(Expression expression, BindingRestrictions restriction)
: base(expression, restriction) {
}
#region IRestrictedMetaObject Members
public DynamicMetaObject Restrict(Type type) {
if (type == LimitType) {
return this;
}
if (HasValue) {
return new RestrictedMetaObject(
AstUtils.Convert(Expression, type),
BindingRestrictionsHelpers.GetRuntimeTypeRestriction(Expression, type),
Value
);
}
return new RestrictedMetaObject(
AstUtils.Convert(Expression, type),
BindingRestrictionsHelpers.GetRuntimeTypeRestriction(Expression, type)
);
}
#endregion
}
}
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