/// <inheritdoc />
public MethodBody ReadMethodBody(MethodDefinition owner, MethodDefinitionRow row)
{
try
{
if (row.Body.CanRead)
{
if (owner.IsIL)
{
var rawBody = CilRawMethodBody.FromReader(row.Body.CreateReader());
return(CilMethodBody.FromRawMethodBody(owner, rawBody));
}
else
{
// TODO: handle native method bodies.
}
}
else if (row.Body.IsBounded && row.Body.GetSegment() is CilRawMethodBody rawMethodBody)
{
return(CilMethodBody.FromRawMethodBody(owner, rawMethodBody));
}
}
catch when(!ThrowOnInvalidMethodBody)
{
return(null);
}
return(null);
}
internal MethodDefinition(MetadataImage image, MetadataRow <FileSegment, MethodImplAttributes, MethodAttributes, uint, uint, uint> row)
: base(row.MetadataToken)
{
_image = image;
var stringStream = image.Header.GetStream <StringStream>();
var blobStream = image.Header.GetStream <BlobStream>();
ImplAttributes = row.Column2;
Attributes = row.Column3;
_name = new LazyValue <string>(() => stringStream.GetStringByOffset(row.Column4));
IBinaryStreamReader blobReader;
if (blobStream.TryCreateBlobReader(row.Column5, out blobReader))
{
_signature = new LazyValue <MethodSignature>(() => MethodSignature.FromReader(image, blobReader));
}
_methodBody = new LazyValue <MethodBody>(() =>
{
var rawBody = row.Column1 as CilRawMethodBody;
if (rawBody != null)
{
return(CilMethodBody.FromRawMethodBody(this, rawBody));
}
// TODO: handler for native methods.
return(null);
});
_declaringType = new LazyValue <TypeDefinition>(() =>
{
var table = image.Header.GetStream <TableStream>().GetTable(MetadataTokenType.TypeDef);
var typeRow = table.GetRowClosestToKey(5, row.MetadataToken.Rid);
return((TypeDefinition)table.GetMemberFromRow(image, typeRow));
});
_pinvokeMap = new LazyValue <ImplementationMap>(() =>
{
if (!row.Column3.HasFlag(MethodAttributes.PInvokeImpl))
{
return(null);
}
var table = (ImplementationMapTable)image.Header.GetStream <TableStream>().GetTable(MetadataTokenType.ImplMap);
var mapRow = table.FindImplementationMapOfOwner(row.MetadataToken);
return(mapRow != null ? (ImplementationMap)table.GetMemberFromRow(image, mapRow) : null);
});
Parameters = new RangedMemberCollection <MethodDefinition, ParameterDefinition>(this, MetadataTokenType.Param, 5, GetParamOwner, SetParamOwner);
CustomAttributes = new CustomAttributeCollection(this);
SecurityDeclarations = new SecurityDeclarationCollection(this);
GenericParameters = new GenericParameterCollection(this);
}