/* ****************************************************************************
*
* 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 !SILVERLIGHT // ComObject
#if !CLR2
using System.Linq.Expressions;
#else
using Microsoft.Scripting.Ast;
#endif
using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
namespace Microsoft.Scripting.ComInterop{
internal sealed class CurrencyArgBuilder : SimpleArgBuilder {
internal CurrencyArgBuilder(Type parameterType)
: base(parameterType) {
Debug.Assert(parameterType == typeof(CurrencyWrapper));
}
internal override Expression Marshal(Expression parameter) {
// parameter.WrappedObject
return Expression.Property(
Helpers.Convert(base.Marshal(parameter), typeof(CurrencyWrapper)),
"WrappedObject"
);
}
internal override Expression MarshalToRef(Expression parameter) {
// Decimal.ToOACurrency(parameter.WrappedObject)
return Expression.Call(
typeof(Decimal).GetMethod("ToOACurrency"),
Marshal(parameter)
);
}
internal override Expression UnmarshalFromRef(Expression value) {
// Decimal.FromOACurrency(value)
return base.UnmarshalFromRef(
Expression.New(
typeof(CurrencyWrapper).GetConstructor(new Type[] { typeof(Decimal) }),
Expression.Call(
typeof(Decimal).GetMethod("FromOACurrency"),
value
)
)
);
}
}
}
#endif
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