Flee

CalcEngine/InternalTypes/Miscellaneous.cs

@@ -0,0 +1,114 @@
+using Flee.PublicTypes;
+
+namespace Flee.CalcEngine.InternalTypes
+{
+    internal class PairEqualityComparer : EqualityComparer<ExpressionResultPair>
+    {
+        public override bool Equals(ExpressionResultPair x, ExpressionResultPair y)
+        {
+            return string.Equals(x.Name, y.Name, StringComparison.OrdinalIgnoreCase);
+        }
+
+        public override int GetHashCode(ExpressionResultPair obj)
+        {
+            return StringComparer.OrdinalIgnoreCase.GetHashCode(obj.Name);
+        }
+    }
+
+    internal abstract class ExpressionResultPair
+    {
+
+        private string _myName;
+
+        protected IDynamicExpression MyExpression;
+
+        protected ExpressionResultPair()
+        {
+        }
+
+        public abstract void Recalculate();
+
+        public void SetExpression(IDynamicExpression e)
+        {
+            MyExpression = e;
+        }
+
+        public void SetName(string name)
+        {
+            _myName = name;
+        }
+
+        public override string ToString()
+        {
+            return _myName;
+        }
+
+        public string Name => _myName;
+
+        public abstract Type ResultType { get; }
+        public abstract object ResultAsObject { get; set; }
+
+        public IDynamicExpression Expression => MyExpression;
+    }
+
+    internal class GenericExpressionResultPair<T> : ExpressionResultPair
+    {
+        public T MyResult;
+        public GenericExpressionResultPair()
+        {
+        }
+
+        public override void Recalculate()
+        {
+            MyResult = (T)MyExpression.Evaluate();
+        }
+
+        public T Result => MyResult;
+
+        public override System.Type ResultType => typeof(T);
+
+        public override object ResultAsObject
+        {
+            get { return MyResult; }
+            set { MyResult = (T)value; }
+        }
+    }
+
+    internal class BatchLoadInfo
+    {
+        public string Name;
+        public string ExpressionText;
+
+        public ExpressionContext Context;
+        public BatchLoadInfo(string name, string text, ExpressionContext context)
+        {
+            this.Name = name;
+            this.ExpressionText = text;
+            this.Context = context;
+        }
+    }
+
+    public sealed class NodeEventArgs : EventArgs
+    {
+
+        private string _myName;
+
+        private object _myResult;
+
+        internal NodeEventArgs()
+        {
+        }
+
+        internal void SetData(string name, object result)
+        {
+            _myName = name;
+            _myResult = result;
+        }
+
+        public string Name => _myName;
+
+        public object Result => _myResult;
+    }
+
+}
+