Pchp.CodeAnalysis.Semantics.Graph.ForeachEnumereeEdge.EmitDisposeAndClean C# (CSharp) Method

        void EmitDisposeAndClean(CodeGenerator cg)
        {
            // enumerator.Dispose()
            if (_disposeMethod != null)
            {
                // TODO: if (enumerator != null)

                if (_enumeratorLoc.Type.IsValueType)
                    cg.Builder.EmitLocalAddress(_enumeratorLoc);
                else
                    cg.Builder.EmitLocalLoad(_enumeratorLoc);

                cg.EmitCall(_disposeMethod.IsVirtual ? ILOpCode.Callvirt : ILOpCode.Call, _disposeMethod)
                    .Expect(SpecialType.System_Void);
            }

            //// enumerator = null;
            //if (!_enumeratorLoc.Type.IsValueType)
            //{
            //    cg.Builder.EmitNullConstant();
            //    cg.Builder.EmitLocalStore(_enumeratorLoc);
            //}

            //
            cg.ReturnTemporaryLocal(_enumeratorLoc);
            _enumeratorLoc = null;

            // unbind
            _moveNextMethod = null;
            _disposeMethod = null;
            _currentValue = null;
            _currentKey = null;
            _current = null;
        }