_6_JIT.ASTNode_Lambda.GetFreeAddresses C# (CSharp) Method

        public IEnumerable<FreeAddress> GetFreeAddresses()
        {
            return bodyFreeAddresses.Concat(childrenFreeAddresses.Where(address=>address.envIndex > 0));
        }

            public ASTNodeVisitor_JITCompiler(TypeBuilder parentTypeBuilder, ASTNode_Lambda node)
            {
                mLambdaNode = node;
                TypeBuilder = parentTypeBuilder.DefineNestedType(JITInterpreter_DS2.Instance().GenernateUniqueString("closure"), TypeAttributes.NestedPublic);

                ConstructorBuilder = TypeBuilder.DefineDefaultConstructor(MethodAttributes.Public);

                FieldBuilders = new Dictionary <FreeAddress, FieldBuilder>();
                foreach (var address in mLambdaNode.GetFreeAddresses())
                {
                    FieldBuilders[address] = TypeBuilder.DefineField(address.ToString(), typeof(SharedValue), FieldAttributes.Public);
                }

                if (HasThisArgument())
                {
                    MethodBuilder = TypeBuilder.DefineMethod(
                        "Invoke",
                        MethodAttributes.Public,
                        CallingConventions.HasThis,
                        typeof(object),
                        Enumerable.Repeat(typeof(object), mLambdaNode.formalCount).ToArray());
                }
                else
                {
                    MethodBuilder = TypeBuilder.DefineMethod(
                        "Invoke",
                        MethodAttributes.Static | MethodAttributes.Public,
                        CallingConventions.Standard,
                        typeof(object),
                        Enumerable.Repeat(typeof(object), mLambdaNode.formalCount).ToArray());
                }


                mILGenerator = MethodBuilder.GetILGenerator();

                DeclareLocals();

                mTaillCallFlags.Push(true);
                mLambdaNode.bodyNode.AcceptVisitor(this);
                mTaillCallFlags.Pop();

                mILGenerator.Emit(OpCodes.Ret);

                TypeBuilder.CreateType();
            }