PEReaderExtensions.cs

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using System.ComponentModel;
using System.Reflection.PortableExecutable;
 
namespace System.Reflection.Metadata;
 
[EditorBrowsable(EditorBrowsableState.Never)]
public static class PEReaderExtensions
{
    public static MethodBodyBlock GetMethodBody(this PEReader peReader, int relativeVirtualAddress)
    {
        if (peReader == null)
        {
            throw new ArgumentNullException("peReader");
        }
        PEMemoryBlock sectionData = peReader.GetSectionData(relativeVirtualAddress);
        if (sectionData.Length == 0)
        {
            throw new BadImageFormatException(System.SR.Format(System.SR.InvalidMethodRva, relativeVirtualAddress));
        }
        return MethodBodyBlock.Create(sectionData.GetReader());
    }
 
    public static MetadataReader GetMetadataReader(this PEReader peReader)
    {
        return peReader.GetMetadataReader(MetadataReaderOptions.Default, null);
    }
 
    public static MetadataReader GetMetadataReader(this PEReader peReader, MetadataReaderOptions options)
    {
        return peReader.GetMetadataReader(options, null);
    }
 
    public unsafe static MetadataReader GetMetadataReader(this PEReader peReader, MetadataReaderOptions options, MetadataStringDecoder? utf8Decoder)
    {
        if (peReader == null)
        {
            throw new ArgumentNullException("peReader");
        }
        PEMemoryBlock metadata = peReader.GetMetadata();
        return new MetadataReader(metadata.Pointer, metadata.Length, options, utf8Decoder, peReader);
    }
}