/
Constant.cs
74 lines (65 loc) · 1.98 KB
/
Constant.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Diagnostics;
namespace System.Reflection.Metadata
{
public readonly struct Constant
{
private readonly MetadataReader _reader;
// Workaround: JIT doesn't generate good code for nested structures, so use RowId.
private readonly int _rowId;
internal Constant(MetadataReader reader, int rowId)
{
Debug.Assert(reader != null);
Debug.Assert(rowId != 0);
_reader = reader;
_rowId = rowId;
}
private ConstantHandle Handle
{
get
{
return ConstantHandle.FromRowId(_rowId);
}
}
/// <summary>
/// The type of the constant value.
/// </summary>
/// <remarks>
/// Corresponds to Type field of Constant table in ECMA-335 Standard.
/// </remarks>
public ConstantTypeCode TypeCode
{
get
{
return _reader.ConstantTable.GetType(Handle);
}
}
/// <summary>
/// The constant value.
/// </summary>
/// <remarks>
/// Corresponds to Value field of Constant table in ECMA-335 Standard.
/// </remarks>
public BlobHandle Value
{
get
{
return _reader.ConstantTable.GetValue(Handle);
}
}
/// <summary>
/// The parent handle (<see cref="ParameterHandle"/>, <see cref="FieldDefinitionHandle"/>, or <see cref="PropertyDefinitionHandle"/>).
/// </summary>
/// <remarks>
/// Corresponds to Parent field of Constant table in ECMA-335 Standard.
/// </remarks>
public EntityHandle Parent
{
get
{
return _reader.ConstantTable.GetParent(Handle);
}
}
}
}