using System; using System.Collections.Generic; using System.Dynamic; using System.Linq.Expressions; namespace Microsoft.CSharp.RuntimeBinder { internal sealed class CSharpBinaryOperationBinder : BinaryOperationBinder { private bool _isChecked; private CSharpBinaryOperationFlags _binopFlags; private Type _callingContext; private List<CSharpArgumentInfo> _argumentInfo; private RuntimeBinder _binder; internal bool IsChecked => _isChecked; internal bool IsLogicalOperation => (_binopFlags & CSharpBinaryOperationFlags.LogicalOperation) != CSharpBinaryOperationFlags.None; internal Type CallingContext => _callingContext; internal IList<CSharpArgumentInfo> ArgumentInfo => _argumentInfo.AsReadOnly(); public CSharpBinaryOperationBinder(ExpressionType operation, bool isChecked, CSharpBinaryOperationFlags binaryOperationFlags, Type callingContext, IEnumerable<CSharpArgumentInfo> argumentInfo) : base(operation) { _isChecked = isChecked; _binopFlags = binaryOperationFlags; _callingContext = callingContext; _argumentInfo = BinderHelper.ToList(argumentInfo); _binder = RuntimeBinder.GetInstance(); } public sealed override DynamicMetaObject FallbackBinaryOperation(DynamicMetaObject target, DynamicMetaObject arg, DynamicMetaObject errorSuggestion) { return BinderHelper.Bind(this, _binder, BinderHelper.Cons(target, null, arg), _argumentInfo, errorSuggestion); } } }