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src/Sdk/DTPipelines/Pipelines/ContextData/NumberContextData.cs

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+using System;
+using System.ComponentModel;
+using System.Globalization;
+using System.Runtime.Serialization;
+using GitHub.DistributedTask.Expressions2.Sdk;
+using GitHub.Services.WebApi.Internal;
+using Newtonsoft.Json.Linq;
+
+namespace GitHub.DistributedTask.Pipelines.ContextData
+{
+    [DataContract]
+    [ClientIgnore]
+    [EditorBrowsable(EditorBrowsableState.Never)]
+    public sealed class NumberContextData : PipelineContextData, INumber
+    {
+        public NumberContextData(Double value)
+            : base(PipelineContextDataType.Number)
+        {
+            m_value = value;
+        }
+
+        public Double Value
+        {
+            get
+            {
+                return m_value;
+            }
+        }
+
+        public override PipelineContextData Clone()
+        {
+            return new NumberContextData(m_value);
+        }
+
+        public override JToken ToJToken()
+        {
+            if (Double.IsNaN(m_value) || m_value == Double.PositiveInfinity || m_value == Double.NegativeInfinity)
+            {
+                return (JToken)m_value;
+            }
+
+            var floored = Math.Floor(m_value);
+            if (m_value == floored && m_value <= (Double)Int32.MaxValue && m_value >= (Double)Int32.MinValue)
+            {
+                Int32 flooredInt = (Int32)floored;
+                return (JToken)flooredInt;
+            }
+            else
+            {
+                return (JToken)m_value;
+            }
+        }
+
+        public override String ToString()
+        {
+            return m_value.ToString("G15", CultureInfo.InvariantCulture);
+        }
+
+        Double INumber.GetNumber()
+        {
+            return Value;
+        }
+
+        public static implicit operator Double(NumberContextData data)
+        {
+            return data.Value;
+        }
+
+        public static implicit operator NumberContextData(Double data)
+        {
+            return new NumberContextData(data);
+        }
+
+        [DataMember(Name = "n", EmitDefaultValue = false)]
+        private Double m_value;
+    }
+}