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//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Copyright (C) Lluis Sanchez Gual, 2004
//
#if !FULL_AOT_RUNTIME
using System;
using System.Reflection;
using System.Reflection.Emit;
namespace Mono.CodeGeneration
{
public class CodeFieldReference: CodeValueReference
{
CodeExpression target;
FieldInfo field;
public CodeFieldReference (CodeExpression target, FieldInfo field)
{
if (field.IsStatic)
throw new InvalidOperationException ("Static member '" + field.Name + "' cannot be accessed with an instance reference.");
this.target = target;
this.field = field;
}
public CodeFieldReference (FieldInfo field)
{
if (!field.IsStatic)
throw new InvalidOperationException ("An object reference is required for the non-static field '" + field.Name + "'.");
this.field = field;
}
public override void Generate (ILGenerator gen)
{
if (field.IsStatic) {
gen.Emit (OpCodes.Ldsfld, field);
}
else {
target.Generate (gen);
gen.Emit (OpCodes.Ldfld, field);
}
}
public override void GenerateSet (ILGenerator gen, CodeExpression value)
{
if (field.IsStatic) {
value.Generate (gen);
CodeGenerationHelper.GenerateSafeConversion (gen, field.FieldType, value.GetResultType ());
gen.Emit (OpCodes.Stsfld, field);
}
else {
target.Generate (gen);
value.Generate (gen);
CodeGenerationHelper.GenerateSafeConversion (gen, field.FieldType, value.GetResultType ());
gen.Emit (OpCodes.Stfld, field);
}
}
public override void PrintCode (CodeWriter cp)
{
if (!field.IsStatic)
target.PrintCode (cp);
else
cp.Write (field.DeclaringType.Name);
cp.Write (".");
cp.Write (field.Name);
}
public override Type GetResultType ()
{
return field.FieldType;
}
}
}
#endif
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