예제 #1
0
        public override ObjectData GetData(NodeFactory factory, bool relocsOnly = false)
        {
            if (relocsOnly)
            {
                // Method fixup signature doesn't contain any direct relocs
                return(new ObjectData(data: Array.Empty <byte>(), relocs: null, alignment: 0, definedSymbols: null));
            }

            ReadyToRunCodegenNodeFactory r2rFactory  = (ReadyToRunCodegenNodeFactory)factory;
            ObjectDataSignatureBuilder   dataBuilder = new ObjectDataSignatureBuilder();

            dataBuilder.AddSymbol(this);

            // Optimize some of the fixups into a more compact form
            ReadyToRunFixupKind fixupKind = _fixupKind;
            bool optimized = false;

            if (!_isUnboxingStub && !_isInstantiatingStub && _method.ConstrainedType == null &&
                fixupKind == ReadyToRunFixupKind.MethodEntry)
            {
                if (!_method.Method.OwningType.HasInstantiation && !_method.Method.OwningType.IsArray)
                {
                    if (_method.Token.TokenType == CorTokenType.mdtMethodDef)
                    {
                        fixupKind = ReadyToRunFixupKind.MethodEntry_DefToken;
                        optimized = true;
                    }
                    else if (_method.Token.TokenType == CorTokenType.mdtMemberRef)
                    {
                        fixupKind = ReadyToRunFixupKind.MethodEntry_RefToken;
                        optimized = true;
                    }
                }
            }

            MethodWithToken method = _method;

            if (factory.CompilationModuleGroup.VersionsWithMethodBody(method.Method))
            {
                if (method.Token.TokenType == CorTokenType.mdtMethodSpec)
                {
                    method = new MethodWithToken(method.Method, _signatureContext.GetModuleTokenForMethod(method.Method, throwIfNotFound: false), method.ConstrainedType);
                }
                else if (!optimized && (method.Token.TokenType == CorTokenType.mdtMemberRef))
                {
                    if (method.Method.OwningType.GetTypeDefinition() is EcmaType)
                    {
                        method = new MethodWithToken(method.Method, _signatureContext.GetModuleTokenForMethod(method.Method, throwIfNotFound: false), method.ConstrainedType);
                    }
                }
            }

            SignatureContext innerContext = dataBuilder.EmitFixup(r2rFactory, fixupKind, method.Token.Module, _signatureContext);

            if (optimized && method.Token.TokenType == CorTokenType.mdtMethodDef)
            {
                dataBuilder.EmitMethodDefToken(method.Token);
            }
            else if (optimized && method.Token.TokenType == CorTokenType.mdtMemberRef)
            {
                dataBuilder.EmitMethodRefToken(method.Token);
            }
            else
            {
                dataBuilder.EmitMethodSignature(method, enforceDefEncoding: false, enforceOwningType: false, innerContext, _isUnboxingStub, _isInstantiatingStub);
            }

            return(dataBuilder.ToObjectData());
        }