/// <summary>
/// Returns a body block of a method with specified Relative Virtual Address (RVA);
/// </summary>
/// <exception cref="ArgumentNullException"><paramref name="peReader"/> is null.</exception>
/// <exception cref="BadImageFormatException">The body is not found in the metadata or is invalid.</exception>
/// <exception cref="InvalidOperationException">Section where the method is stored is not available.</exception>
/// <exception cref="IOException">IO error while reading from the underlying stream.</exception>
public static MethodBodyBlock GetMethodBody(this PEReader peReader, int relativeVirtualAddress)
{
if (peReader is null)
{
Throw.ArgumentNull(nameof(peReader));
}
var block = peReader.GetSectionData(relativeVirtualAddress);
if (block.Length == 0)
{
throw new BadImageFormatException(SR.Format(SR.InvalidMethodRva, relativeVirtualAddress));
}
// Call to validating public BlobReader constructor is by design -- we need to throw PlatformNotSupported on big-endian architecture.
return(MethodBodyBlock.Create(block.GetReader()));
}
/// <summary>
/// Returns a body block of a method with specified Relative Virtual Address (RVA);
/// </summary>
/// <exception cref="ArgumentNullException"><paramref name="peReader"/> is null.</exception>
/// <exception cref="BadImageFormatException">The body is not found in the metadata or is invalid.</exception>
/// <exception cref="InvalidOperationException">Section where the method is stored is not available.</exception>
public static unsafe MethodBodyBlock GetMethodBody(this PEReader peReader, int relativeVirtualAddress)
{
if (peReader == null)
{
throw new ArgumentNullException("peReader");
}
var block = peReader.GetSectionData(relativeVirtualAddress);
if (block.Length == 0)
{
throw new BadImageFormatException(string.Format(MetadataResources.InvalidMethodRva, relativeVirtualAddress));
}
// Call to validating public BlobReader constructor is by design -- we need to throw PlatformNotSupported on big-endian architecture.
var blobReader = new BlobReader(block.Pointer, block.Length);
return(MethodBodyBlock.Create(blobReader));
}