95 lines
2.7 KiB
C#
95 lines
2.7 KiB
C#
//
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// MemberBinding.cs
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//
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// Author:
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// Jb Evain (jbevain@novell.com)
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//
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// (C) 2008 Novell, Inc. (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Reflection;
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#if !FULL_AOT_RUNTIME
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using System.Reflection.Emit;
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#endif
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namespace System.Linq.Expressions {
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public abstract class MemberBinding {
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MemberBindingType binding_type;
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MemberInfo member;
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public MemberBindingType BindingType {
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get { return binding_type; }
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}
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public MemberInfo Member {
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get { return member; }
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}
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protected MemberBinding (MemberBindingType binding_type, MemberInfo member)
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{
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this.binding_type = binding_type;
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this.member = member;
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}
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public override string ToString ()
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{
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return ExpressionPrinter.ToString (this);
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}
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#if !FULL_AOT_RUNTIME
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internal abstract void Emit (EmitContext ec, LocalBuilder local);
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internal LocalBuilder EmitLoadMember (EmitContext ec, LocalBuilder local)
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{
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ec.EmitLoadSubject (local);
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return member.OnFieldOrProperty<LocalBuilder> (
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field => EmitLoadField (ec, field),
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prop => EmitLoadProperty (ec, prop));
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}
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LocalBuilder EmitLoadProperty (EmitContext ec, PropertyInfo property)
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{
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var getter = property.GetGetMethod (true);
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if (getter == null)
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throw new NotSupportedException ();
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var store = ec.ig.DeclareLocal (property.PropertyType);
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ec.EmitCall (getter);
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ec.ig.Emit (OpCodes.Stloc, store);
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return store;
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}
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LocalBuilder EmitLoadField (EmitContext ec, FieldInfo field)
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{
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var store = ec.ig.DeclareLocal (field.FieldType);
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ec.ig.Emit (OpCodes.Ldfld, field);
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ec.ig.Emit (OpCodes.Stloc, store);
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return store;
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}
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#endif
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}
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}
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