C# CppGenerationBuffer.Append方法代码示例

        private string CompileSpecialMethod(MethodDesc method, SpecialMethodKind kind)
        {
            var builder = new CppGenerationBuffer();
            switch (kind)
            {
                case SpecialMethodKind.PInvoke:
                case SpecialMethodKind.RuntimeImport:
                    {
                        EcmaMethod ecmaMethod = method as EcmaMethod;

                        string importName = kind == SpecialMethodKind.PInvoke ?
                            method.GetPInvokeMethodMetadata().Name : ecmaMethod.GetAttributeStringValue("System.Runtime", "RuntimeImportAttribute");

                        if (importName == null)
                            importName = method.Name;

                        MethodSignature methodSignature = method.Signature;
                        bool slotCastRequired = false;

                        MethodSignature externCSignature;
                        if (_externCSignatureMap.TryGetValue(importName, out externCSignature))
                        {
                            slotCastRequired = !externCSignature.Equals(method.Signature);
                        }
                        else
                        {
                            _externCSignatureMap.Add(importName, methodSignature);
                            externCSignature = methodSignature;
                        }

                        builder.AppendLine();
                        builder.Append(GetCppMethodDeclaration(method, true));
                        builder.AppendLine();
                        builder.Append("{");
                        builder.Indent();

                        if (slotCastRequired)
                        {
                            AppendSlotTypeDef(builder, method);
                        }

                        builder.AppendLine();
                        if (!method.Signature.ReturnType.IsVoid)
                        {
                            builder.Append("return ");
                        }

                        if (slotCastRequired)
                            builder.Append("((__slot__" + GetCppMethodName(method) + ")");
                        builder.Append("::");
                        builder.Append(importName);
                        if (slotCastRequired)
                            builder.Append(")");

                        builder.Append("(");
                        builder.Append(GetCppMethodCallParamList(method));
                        builder.Append(");");
                        builder.Exdent();
                        builder.AppendLine();
                        builder.Append("}");

                        return builder.ToString();
                    }

                default:
                    builder.AppendLine();
                    builder.Append(GetCppMethodDeclaration(method, true));
                    builder.AppendLine();
                    builder.Append("{");
                    builder.Indent();
                    builder.AppendLine();
                    builder.Append("throw 0xC000C000;");
                    builder.Exdent();
                    builder.AppendLine();
                    builder.Append("}");

                    return builder.ToString();
            }
        }

        private String GetCodeForReloc(Relocation reloc, DependencyNode node, NodeFactory factory)
        {
            CppGenerationBuffer relocCode = new CppGenerationBuffer();
            if (reloc.Target is CppMethodCodeNode)
            {
                var method = reloc.Target as CppMethodCodeNode;

                relocCode.Append("(void*)&");
                relocCode.Append(GetCppMethodDeclarationName(method.Method.OwningType, GetCppMethodName(method.Method)));
            }
            else if (reloc.Target is EETypeNode && node is EETypeNode)
            {
                relocCode.Append(GetCppMethodDeclarationName((reloc.Target as EETypeNode).Type, "__getMethodTable"));
                relocCode.Append("()");
            }
            // Node is either an non-emitted type or a generic composition - both are ignored for CPP codegen
            else if ((reloc.Target is TypeManagerIndirectionNode || reloc.Target is InterfaceDispatchMapNode || reloc.Target is EETypeOptionalFieldsNode || reloc.Target is GenericCompositionNode) && !(reloc.Target as ObjectNode).ShouldSkipEmittingObjectNode(factory))
            {
                string mangledTargetName = reloc.Target.GetMangledName();
                bool shouldReplaceNamespaceQualifier = reloc.Target is GenericCompositionNode || reloc.Target is EETypeOptionalFieldsNode;
                relocCode.Append(shouldReplaceNamespaceQualifier ? mangledTargetName.Replace("::", "_") : mangledTargetName);
                relocCode.Append("()");
            }
            else if (reloc.Target is ObjectAndOffsetSymbolNode &&
                (reloc.Target as ObjectAndOffsetSymbolNode).Target is ArrayOfEmbeddedPointersNode<InterfaceDispatchMapNode>)
            {
                relocCode.Append("dispatchMapModule");
            }
            else
            {
                relocCode.Append("NULL");
            }
            return relocCode.ToString();
        }

 private static void AppendFormattedByteArray(CppGenerationBuffer sb, byte[] array, int startIndex, int endIndex)
 {
     sb.Append("{");
     sb.Append("0x");
     sb.Append(BitConverter.ToString(array, startIndex, endIndex - startIndex).Replace("-", ",0x"));
     sb.Append("}");
 }

        private String GetCodeForDelegate(TypeDesc delegateType)
        {
            var sb = new CppGenerationBuffer();

            MethodDesc method = delegateType.GetKnownMethod("Invoke", null);

            AppendSlotTypeDef(sb, method);

            sb.AppendLine();
            sb.Append("static __slot__");
            sb.Append(GetCppMethodName(method));
            sb.Append(" __invoke__");
            sb.Append(GetCppMethodName(method));
            sb.Append("(void * pThis)");
            sb.AppendLine();
            sb.Append("{");
            sb.Indent();
            sb.AppendLine();
            sb.Append("return (__slot__");
            sb.Append(GetCppMethodName(method));
            sb.Append(")(((");
            sb.Append(GetCppSignatureTypeName(_compilation.TypeSystemContext.GetWellKnownType(WellKnownType.MulticastDelegate)));
            sb.Append(")pThis)->m_functionPointer);");
            sb.Exdent();
            sb.AppendLine();
            sb.Append("};");

            return sb.ToString();
        }

        private String GetCodeForObjectNode(ObjectNode node, NodeFactory factory)
        {
            // virtual slots
            var nodeData = node.GetData(factory, false);

            CppGenerationBuffer nodeCode = new CppGenerationBuffer();

            /* Create list of byte data. Used to divide contents between reloc and byte data
          * First val - isReloc
          * Second val - size of byte data if first value of tuple is false
          */

            List<NodeDataSection> nodeDataSections = new List<NodeDataSection>();
            byte[] actualData = new byte[nodeData.Data.Length];
            Relocation[] relocs = nodeData.Relocs;

            int nextRelocOffset = -1;
            int nextRelocIndex = -1;
            int lastByteIndex = 0;

            if (relocs.Length > 0)
            {
                nextRelocOffset = relocs[0].Offset;
                nextRelocIndex = 0;
            }

            int i = 0;
            int offset = 0;
            CppGenerationBuffer nodeDataDecl = new CppGenerationBuffer();

            if (node is ISymbolNode)
            {
                offset = (node as ISymbolNode).Offset;
                i = offset;
                lastByteIndex = offset;
            }
            while (i < nodeData.Data.Length)
            {
                if (i == nextRelocOffset)
                {
                    Relocation reloc = relocs[nextRelocIndex];

                    int size = _compilation.TypeSystemContext.Target.PointerSize;
                    // Make sure we've gotten the correct size for the reloc
                    System.Diagnostics.Debug.Assert(reloc.RelocType == (size == 8 ? RelocType.IMAGE_REL_BASED_DIR64 : RelocType.IMAGE_REL_BASED_HIGHLOW));

                    // Update nextRelocIndex/Offset
                    if (++nextRelocIndex < relocs.Length)
                    {
                        nextRelocOffset = relocs[nextRelocIndex].Offset;
                    }
                    nodeDataSections.Add(new NodeDataSection(NodeDataSectionType.Relocation, size));
                    i += size;
                    lastByteIndex = i;
                }
                else
                {
                    i++;
                    if (i + 1 == nextRelocOffset || i + 1 == nodeData.Data.Length)
                    {
                        nodeDataSections.Add(new NodeDataSection(NodeDataSectionType.ByteData, (i + 1) - lastByteIndex));
                    }
                }
            }
            string pointerType = node is EETypeNode ? "MethodTable * " : "void* ";
            nodeCode.Append(pointerType);
            if (node is EETypeNode)
            {
                nodeCode.Append(GetCppMethodDeclarationName((node as EETypeNode).Type, "__getMethodTable"));
            }
            else
            {
                string mangledName = ((ISymbolNode)node).GetMangledName();

                // Rename generic composition and optional fields nodes to avoid name clash with types
                bool shouldReplaceNamespaceQualifier = node is GenericCompositionNode || node is EETypeOptionalFieldsNode;
                nodeCode.Append(shouldReplaceNamespaceQualifier ? mangledName.Replace("::", "_") : mangledName);
            }
            nodeCode.Append("()");
            nodeCode.AppendLine();
            nodeCode.Append("{");
            nodeCode.Indent();
            nodeCode.AppendLine();
            nodeCode.Append("static struct {");

            nodeCode.AppendLine();
            nodeCode.Append(GetCodeForNodeStruct(nodeDataSections, node));

            nodeCode.AppendLine();
            nodeCode.Append("} mt = {");
            nodeCode.Append(GetCodeForNodeData(nodeDataSections, relocs, nodeData.Data, node, offset, factory));

            nodeCode.Append("};");
            nodeCode.AppendLine();
            nodeCode.Append("return ( ");
            nodeCode.Append(pointerType);
            nodeCode.Append(")&mt;");
            nodeCode.Exdent();
            nodeCode.AppendLine();
            nodeCode.Append("}");
//.........这里部分代码省略.........

        private void CompileExternMethod(CppMethodCodeNode methodCodeNodeNeedingCode, string importName)
        {
            MethodDesc method = methodCodeNodeNeedingCode.Method;
            MethodSignature methodSignature = method.Signature;

            bool slotCastRequired = false;

            MethodSignature externCSignature;
            if (_externCSignatureMap.TryGetValue(importName, out externCSignature))
            {
                slotCastRequired = !externCSignature.Equals(methodSignature);
            }
            else
            {
                _externCSignatureMap.Add(importName, methodSignature);
                externCSignature = methodSignature;
            }

            var sb = new CppGenerationBuffer();

            sb.AppendLine();
            AppendCppMethodDeclaration(sb, method, true);
            sb.AppendLine();
            sb.Append("{");
            sb.Indent();

            if (slotCastRequired)
            {
                AppendSlotTypeDef(sb, method);
            }

            sb.AppendLine();
            if (!method.Signature.ReturnType.IsVoid)
            {
                sb.Append("return ");
            }

            if (slotCastRequired)
                sb.Append("((__slot__" + GetCppMethodName(method) + ")");
            sb.Append("::");
            sb.Append(importName);
            if (slotCastRequired)
                sb.Append(")");

            sb.Append("(");
            AppendCppMethodCallParamList(sb, method);
            sb.Append(");");
            sb.Exdent();
            sb.AppendLine();
            sb.Append("}");

            methodCodeNodeNeedingCode.SetCode(sb.ToString(), Array.Empty<Object>());
        }

        private void OutputTypeFields(CppGenerationBuffer sb, TypeDesc t)
        {
            bool explicitLayout = false;
            ClassLayoutMetadata classLayoutMetadata = default(ClassLayoutMetadata);

            if (t.IsValueType)
            {
                MetadataType metadataType = (MetadataType)t;
                if (metadataType.IsExplicitLayout)
                {
                    explicitLayout = true;
                    classLayoutMetadata = metadataType.GetClassLayout();
                }
            }

            int instanceFieldIndex = 0;

            if (explicitLayout)
            {
                sb.AppendLine();
                sb.Append("union {");
                sb.Indent();
            }

            foreach (var field in t.GetFields())
            {
                if (field.IsStatic)
                {
                    if (field.IsLiteral)
                        continue;

                    TypeDesc fieldType = GetFieldTypeOrPlaceholder(field);
                    CppGenerationBuffer builder;
                    if (!fieldType.IsValueType)
                    {
                        builder = _gcStatics;
                    }
                    else
                    {
                        // TODO: Valuetype statics with GC references
                        builder = _statics;
                    }
                    builder.AppendLine();
                    builder.Append(GetCppSignatureTypeName(fieldType));
                    builder.Append(" ");
                    builder.Append(GetCppStaticFieldName(field) + ";");
                }
                else
                {
                    if (explicitLayout)
                    {
                        sb.AppendLine();
                        sb.Append("struct {");
                        sb.Indent();
                        int offset = classLayoutMetadata.Offsets[instanceFieldIndex].Offset;
                        if (offset > 0)
                        {
                            sb.AppendLine();
                            sb.Append("char __pad" + instanceFieldIndex + "[" + offset + "];");
                        }
                    }
                    sb.AppendLine();
                    sb.Append(GetCppSignatureTypeName(GetFieldTypeOrPlaceholder(field)) + " " + GetCppFieldName(field) + ";");
                    if (explicitLayout)
                    {
                        sb.Exdent();
                        sb.AppendLine();
                        sb.Append("};");
                    }
                    instanceFieldIndex++;
                }
            }

            if (explicitLayout)
            {
                sb.Exdent();
                sb.AppendLine();
                sb.Append("};");
            }
        }

 private void OutputMethod(CppGenerationBuffer sb, MethodDesc m)
 {
     sb.AppendLine();
     sb.Append(GetCppMethodDeclaration(m, false));
 }

        private void AppendVirtualSlots(CppGenerationBuffer sb, TypeDesc implType, TypeDesc declType)
        {
            var baseType = declType.BaseType;
            if (baseType != null)
                AppendVirtualSlots(sb, implType, baseType);

            IReadOnlyList<MethodDesc> virtualSlots = _compilation.NodeFactory.VTable(declType).Slots;
            for (int i = 0; i < virtualSlots.Count; i++)
            {
                MethodDesc declMethod = virtualSlots[i];
                MethodDesc implMethod = implType.GetClosestMetadataType().FindVirtualFunctionTargetMethodOnObjectType(declMethod);

                sb.AppendLine();
                if (implMethod.IsAbstract)
                {
                    sb.Append("NULL,");
                }
                else
                {
                    sb.Append("(void*)&");
                    sb.Append(GetCppMethodDeclarationName(implMethod.OwningType, GetCppMethodName(implMethod)));
                    sb.Append(",");
                }
            }
        }

        private void OutputTypes(bool full)
        {
            var sb = new CppGenerationBuffer();
            if (full)
            {
                _statics = new CppGenerationBuffer();
                _statics.Indent();
                _gcStatics = new CppGenerationBuffer();
                _gcStatics.Indent();
                _threadStatics = new CppGenerationBuffer();
                _threadStatics.Indent();
                _gcThreadStatics = new CppGenerationBuffer();
                _gcThreadStatics.Indent();
            }

            _emittedTypes = new HashSet<TypeDesc>();
            foreach (var t in _cppSignatureNames.Keys)
            {
                if (t.IsByRef || t.IsPointer)
                    continue;

                // Base class types and valuetype instantance field types may be emitted out-of-order to make them 
                // appear before they are used.
                if (_emittedTypes.Contains(t))
                    continue;

                OutputType(sb, t, full);
            }
            _emittedTypes = null;

            if (full)
            {
                sb.AppendLine();
                sb.Append("struct {");
                // No need to indent or add a new line as _statics is already properly indented
                sb.Append(_statics.ToString());
                sb.AppendLine();
                sb.Append("} __statics;");

                // TODO: Register GC statics with GC
                sb.AppendLine();
                sb.Append("struct {");
                // No need to indent or add a new line as _gcStatics is already properly indented
                sb.Append(_gcStatics.ToString());
                sb.AppendLine();
                sb.Append("} __gcStatics;");

                sb.AppendLine();

                _statics = null;
                _gcStatics = null;
                _threadStatics = null;
                _gcThreadStatics = null;
            }

            Out.Write(sb.ToString());
            sb.Clear();
        }

        private void OutputType(CppGenerationBuffer sb, TypeDesc t, bool full)
        {
            _emittedTypes.Add(t);

            if (full)
            {
                if (!t.IsValueType)
                {
                    var baseType = t.BaseType;
                    if (baseType != null)
                    {
                        if (!_emittedTypes.Contains(baseType))
                        {
                            OutputType(sb, baseType, full);
                        }
                    }
                }

                foreach (var field in t.GetFields())
                {
                    var fieldType = GetFieldTypeOrPlaceholder(field);
                    if (fieldType.IsValueType && !fieldType.IsPrimitive && !field.IsStatic)
                    {
                        if (!_emittedTypes.Contains(fieldType))
                        {
                            OutputType(sb, fieldType, full);
                        }
                    }
                }
            }

            string mangledName = GetCppTypeName(t);

            int nesting = 0;
            int current = 0;
            // Create Namespaces. If a mangledName starts with just :: we will simply ignore it.
            sb.AppendLine();
            for (;;)
            {
                int sep = mangledName.IndexOf("::", current);
                if (sep < 0)
                    break;

                if (sep != 0)
                {
                    // Case of a name not starting with ::
                    sb.Append("namespace " + mangledName.Substring(current, sep - current) + " { ");
                    nesting++;
                }
                current = sep + 2;

            }

            if (full)
            {
                sb.Append("class " + mangledName.Substring(current));
                if (!t.IsValueType)
                {
                    if (t.BaseType != null)
                    {
                        sb.Append(" : public " + GetCppTypeName(t.BaseType));
                    }
                }
                sb.Append(" {");
                sb.AppendLine();
                sb.Append("public:");
                sb.Indent();

                // TODO: Enable once the dependencies are tracked for arrays
                // if (((DependencyNode)_compilation.NodeFactory.ConstructedTypeSymbol(t)).Marked)
                if (!t.IsPointer && !t.IsByRef)
                {
                    sb.AppendLine();
                    sb.Append("static MethodTable * __getMethodTable();");
                }

                IReadOnlyList<MethodDesc> virtualSlots = _compilation.NodeFactory.VTable(t).Slots;
                
                int baseSlots = 0;
                var baseType = t.BaseType;
                while (baseType != null)
                {
                    IReadOnlyList<MethodDesc> baseVirtualSlots = _compilation.NodeFactory.VTable(baseType).Slots;
                    if (baseVirtualSlots != null)
                        baseSlots += baseVirtualSlots.Count;
                    baseType = baseType.BaseType;
                }

                for (int slot = 0; slot < virtualSlots.Count; slot++)
                {
                    MethodDesc virtualMethod = virtualSlots[slot];
                    sb.AppendLine();
                    sb.Append(GetCodeForVirtualMethod(virtualMethod, baseSlots + slot));
                }

                if (t.IsDelegate)
                {
                    sb.AppendLine();
                    sb.Append(GetCodeForDelegate(t));
                }
//.........这里部分代码省略.........

        public void CompileMethod(CppMethodCodeNode methodCodeNodeNeedingCode)
        {
            MethodDesc method = methodCodeNodeNeedingCode.Method;

            _compilation.Log.WriteLine("Compiling " + method.ToString());

            if (method.HasCustomAttribute("System.Runtime", "RuntimeImportAttribute"))
            {
                CompileExternMethod(methodCodeNodeNeedingCode, ((EcmaMethod)method).GetRuntimeImportName());
                return;
            }

            if (method.IsRawPInvoke())
            {
                CompileExternMethod(methodCodeNodeNeedingCode, method.GetPInvokeMethodMetadata().Name ?? method.Name);
                return;
            }

            var methodIL = _compilation.GetMethodIL(method);
            if (methodIL == null)
                return;

            try
            {
                var ilImporter = new ILImporter(_compilation, this, method, methodIL);

                CompilerTypeSystemContext typeSystemContext = _compilation.TypeSystemContext;

                MethodDebugInformation debugInfo = _compilation.GetDebugInfo(methodIL);

                if (!_compilation.Options.NoLineNumbers)
                {
                    IEnumerable<ILSequencePoint> sequencePoints = debugInfo.GetSequencePoints();
                    if (sequencePoints != null)
                        ilImporter.SetSequencePoints(sequencePoints);
                }

                IEnumerable<ILLocalVariable> localVariables = debugInfo.GetLocalVariables();
                if (localVariables != null)
                    ilImporter.SetLocalVariables(localVariables);

                IEnumerable<string> parameters = GetParameterNamesForMethod(method);
                if (parameters != null)
                    ilImporter.SetParameterNames(parameters);

                ilImporter.Compile(methodCodeNodeNeedingCode);
            }
            catch (Exception e)
            {
                _compilation.Log.WriteLine(e.Message + " (" + method + ")");

                var builder = new CppGenerationBuffer();
                builder.AppendLine();
                builder.Append(GetCppMethodDeclaration(method, true));
                builder.AppendLine();
                builder.Append("{");
                builder.Indent();
                builder.AppendLine();
                builder.Append("throw 0xC000C000;");
                builder.Exdent();
                builder.AppendLine();
                builder.Append("}");

                methodCodeNodeNeedingCode.SetCode(builder.ToString(), Array.Empty<Object>());
            }
        }

        public void OutputCode(IEnumerable<DependencyNode> nodes, MethodDesc entrypoint)
        {
            BuildMethodLists(nodes);

            ExpandTypes();

            Out.WriteLine("#include \"common.h\"");
            Out.WriteLine("#include \"CppCodeGen.h\"");
            Out.WriteLine();

            Out.Write("/* Forward type definitions */");
            OutputTypes(false);
            Out.WriteLine();
            Out.WriteLine();
            Out.Write("/* Type definitions  */");
            OutputTypes(true);

            var sb = new CppGenerationBuffer();

            foreach (var externC in _externCSignatureMap)
            {
                string importName = externC.Key;
                // TODO: hacky special-case
                if (importName != "memmove" && importName != "malloc") // some methods are already declared by the CRT headers
                {
                    sb.AppendLine();
                    sb.Append(GetCppMethodDeclaration(null, false, importName, externC.Value));
                }
            }
            Out.Write(sb.ToString());
            sb.Clear();

            foreach (var t in _cppSignatureNames.Keys)
            {
                // TODO: Enable once the dependencies are tracked for arrays
                // if (((DependencyNode)_compilation.NodeFactory.ConstructedTypeSymbol(t)).Marked)
                if (!t.IsPointer && !t.IsByRef)
                {
                    sb.AppendLine();
                    sb.Append(GetCodeForType(t));
                }

                List<MethodDesc> methodList;
                if (_methodLists.TryGetValue(t, out methodList))
                {
                    foreach (var m in methodList)
                    {
                        var methodCodeNode = (CppMethodCodeNode)_compilation.NodeFactory.MethodEntrypoint(m);
                        sb.AppendLine();
                        sb.Append(methodCodeNode.CppCode);

                        var alternateName = _compilation.NodeFactory.GetSymbolAlternateName(methodCodeNode);
                        if (alternateName != null)
                        {
                            sb.AppendLine();
                            sb.Append(GetCppMethodDeclaration(m, true, alternateName));
                            sb.AppendLine();
                            sb.Append("{");
                            sb.Indent();
                            sb.AppendLine();
                            if (!m.Signature.ReturnType.IsVoid)
                            {
                                sb.Append("return ");
                            }
                            sb.Append(GetCppMethodDeclarationName(m.OwningType, GetCppMethodName(m)));
                            sb.Append("(");
                            sb.Append(GetCppMethodCallParamList(m));
                            sb.Append(");");
                            sb.Exdent();
                            sb.AppendLine();
                            sb.Append("}");
                        }
                    }
                }
            }
            Out.Write(sb.ToString());
            sb.Clear();

            if (entrypoint != null)
            {
                // Stub for main method
                sb.AppendLine();
                if (_compilation.TypeSystemContext.Target.OperatingSystem == TargetOS.Windows)
                {
                    sb.Append("int wmain(int argc, wchar_t * argv[]) { ");
                }
                else
                {
                    sb.Append("int main(int argc, char * argv[]) {");
                }
                sb.Indent();

                sb.AppendLine();
                sb.Append("if (__initialize_runtime() != 0)");
                sb.Indent();
                sb.AppendLine();
                sb.Append("return -1;");
                sb.Exdent();
                sb.AppendEmptyLine();
                sb.AppendLine();
//.........这里部分代码省略.........

        public void CompileMethod(CppMethodCodeNode methodCodeNodeNeedingCode)
        {
            MethodDesc method = methodCodeNodeNeedingCode.Method;

            _compilation.Log.WriteLine("Compiling " + method.ToString());

            SpecialMethodKind kind = method.DetectSpecialMethodKind();

            if (kind != SpecialMethodKind.Unknown)
            {
                string specialMethodCode = CompileSpecialMethod(method, kind);

                methodCodeNodeNeedingCode.SetCode(specialMethodCode, Array.Empty<Object>());
                return;
            }

            var methodIL = _compilation.GetMethodIL(method);
            if (methodIL == null)
                return;

            try
            {
                var ilImporter = new ILImporter(_compilation, this, method, methodIL);

                CompilerTypeSystemContext typeSystemContext = _compilation.TypeSystemContext;

                if (!_compilation.Options.NoLineNumbers)
                {
                    IEnumerable<ILSequencePoint> sequencePoints = typeSystemContext.GetSequencePointsForMethod(method);
                    if (sequencePoints != null)
                        ilImporter.SetSequencePoints(sequencePoints);
                }

                IEnumerable<ILLocalVariable> localVariables = typeSystemContext.GetLocalVariableNamesForMethod(method);
                if (localVariables != null)
                    ilImporter.SetLocalVariables(localVariables);

                IEnumerable<string> parameters = typeSystemContext.GetParameterNamesForMethod(method);
                if (parameters != null)
                    ilImporter.SetParameterNames(parameters);

                ilImporter.Compile(methodCodeNodeNeedingCode);
            }
            catch (Exception e)
            {
                _compilation.Log.WriteLine(e.Message + " (" + method + ")");

                var builder = new CppGenerationBuffer();
                builder.AppendLine();
                builder.Append(GetCppMethodDeclaration(method, true));
                builder.AppendLine();
                builder.Append("{");
                builder.Indent();
                builder.AppendLine();
                builder.Append("throw 0xC000C000;");
                builder.Exdent();
                builder.AppendLine();
                builder.Append("}");

                methodCodeNodeNeedingCode.SetCode(builder.ToString(), Array.Empty<Object>());
            }
        }

        private String GetCodeForReadyToRunHeader(ReadyToRunHeaderNode headerNode, NodeFactory factory)
        {
            CppGenerationBuffer rtrHeader = new CppGenerationBuffer();
            rtrHeader.Append(GetCodeForObjectNode(headerNode, factory));
            rtrHeader.AppendLine();
            rtrHeader.Append("void* RtRHeaderWrapper() {");
            rtrHeader.Indent();
            rtrHeader.AppendLine();
            rtrHeader.Append("static struct {");
            rtrHeader.AppendLine();
            rtrHeader.Append("unsigned char leftPadding[8];");
            rtrHeader.AppendLine();
            rtrHeader.Append("void* rtrHeader;");
            rtrHeader.AppendLine();
            rtrHeader.Append("unsigned char rightPadding[8];");
            rtrHeader.AppendLine();
            rtrHeader.Append("} rtrHeaderWrapper = {");
            rtrHeader.Indent();
            rtrHeader.AppendLine();
            rtrHeader.Append("{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },");
            rtrHeader.AppendLine();
            rtrHeader.Append("(void*)");
            rtrHeader.Append(headerNode.GetMangledName());
            rtrHeader.Append("(),");
            rtrHeader.AppendLine();
            rtrHeader.Append("{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }");
            rtrHeader.AppendLine();
            rtrHeader.Append("};");
            rtrHeader.Exdent();
            rtrHeader.AppendLine();
            rtrHeader.Append("return (void *)&rtrHeaderWrapper;");
            rtrHeader.Exdent();
            rtrHeader.AppendLine();
            rtrHeader.Append("}");
            rtrHeader.AppendLine();

            return rtrHeader.ToString();
        }