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*
* Copyright (c) Microsoft Corporation.
*
* This source code is subject to terms and conditions of the Apache License, Version 2.0. A
* copy of the license can be found in the License.html file at the root of this distribution. If
* you cannot locate the Apache License, Version 2.0, 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 Apache License, Version 2.0.
*
* You must not remove this notice, or any other, from this software.
*
*
* ***************************************************************************/
using System.Diagnostics;
using System.Reflection;
namespace System.Management.Automation.Interpreter
{
internal sealed class LoadStaticFieldInstruction : Instruction
{
private readonly FieldInfo _field;
public LoadStaticFieldInstruction(FieldInfo field)
{
Debug.Assert(field.IsStatic);
_field = field;
}
public override int ProducedStack { get { return 1; } }
public override int Run(InterpretedFrame frame)
{
frame.Push(_field.GetValue(null));
return +1;
}
}
internal sealed class LoadFieldInstruction : Instruction
{
private readonly FieldInfo _field;
public LoadFieldInstruction(FieldInfo field)
{
Assert.NotNull(field);
_field = field;
}
public override int ConsumedStack { get { return 1; } }
public override int ProducedStack { get { return 1; } }
public override int Run(InterpretedFrame frame)
{
frame.Push(_field.GetValue(frame.Pop()));
return +1;
}
}
internal sealed class StoreFieldInstruction : Instruction
{
private readonly FieldInfo _field;
public StoreFieldInstruction(FieldInfo field)
{
Assert.NotNull(field);
_field = field;
}
public override int ConsumedStack { get { return 2; } }
public override int ProducedStack { get { return 0; } }
public override int Run(InterpretedFrame frame)
{
object value = frame.Pop();
object self = frame.Pop();
_field.SetValue(self, value);
return +1;
}
}
internal sealed class StoreStaticFieldInstruction : Instruction
{
private readonly FieldInfo _field;
public StoreStaticFieldInstruction(FieldInfo field)
{
Assert.NotNull(field);
_field = field;
}
public override int ConsumedStack { get { return 1; } }
public override int ProducedStack { get { return 0; } }
public override int Run(InterpretedFrame frame)
{
object value = frame.Pop();
_field.SetValue(null, value);
return +1;
}
}
}
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