demo: add performance demo

Samples~/Performance Demo/NanoMonitor/Scripts/Utilities/CustomProfilerItem.cs

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+using UnityEngine;
+#if UNITY_EDITOR
+using UnityEditor;
+#endif
+
+namespace Coffee.NanoMonitor
+{
+#if UNITY_EDITOR
+    [CustomPropertyDrawer(typeof(CustomMonitorItem))]
+    internal sealed class CustomMonitorItemDrawer : PropertyDrawer
+    {
+        public override void OnGUI(Rect p, SerializedProperty property, GUIContent label)
+        {
+            EditorGUI.PropertyField(new Rect(p.x, p.y + 18 * 0, p.width, 16), property.FindPropertyRelative("m_Text"));
+            EditorGUI.PropertyField(new Rect(p.x, p.y + 18 * 1, p.width, 16), property.FindPropertyRelative("m_Format"));
+            EditorGUI.indentLevel++;
+            EditorGUI.PropertyField(new Rect(p.x, p.y + 18 * 2, p.width, 16), property.FindPropertyRelative("m_Arg0"));
+            EditorGUI.PropertyField(new Rect(p.x, p.y + 18 * 3, p.width, 16), property.FindPropertyRelative("m_Arg1"));
+            EditorGUI.PropertyField(new Rect(p.x, p.y + 18 * 4, p.width, 16), property.FindPropertyRelative("m_Arg2"));
+            EditorGUI.indentLevel--;
+
+            property.serializedObject.ApplyModifiedProperties();
+        }
+
+        public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
+        {
+            return (EditorGUIUtility.singleLineHeight + 2) * 5;
+        }
+    }
+#endif
+
+    [System.Serializable]
+    public class CustomMonitorItem
+    {
+        [SerializeField] private MonitorUI m_Text = null;
+        [SerializeField] private string m_Format = "";
+        [SerializeField] private NumericProperty m_Arg0 = null;
+        [SerializeField] private NumericProperty m_Arg1 = null;
+        [SerializeField] private NumericProperty m_Arg2 = null;
+
+        public void UpdateText()
+        {
+            if (m_Text)
+                m_Text.SetText(m_Format, m_Arg0.Get(), m_Arg1.Get(), m_Arg2.Get());
+        }
+    }
+}

Samples~/Performance Demo/NanoMonitor/Scripts/Utilities/CustomProfilerItem.cs.meta

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+  defaultReferences: []
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Samples~/Performance Demo/NanoMonitor/Scripts/Utilities/NumericProperty.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using UnityEngine;
+using UnityEngine.Serialization;
+#if UNITY_EDITOR
+using UnityEditor;
+
+#endif
+
+namespace Coffee.NanoMonitor
+{
+#if UNITY_EDITOR
+    [CustomPropertyDrawer(typeof(NumericProperty))]
+    internal sealed class NumericPropertyDrawer : PropertyDrawer
+    {
+        private static Action<PropertyInfo> s_OnMenuSelected;
+        private static GenericMenu s_PropertyMenu;
+
+        private static readonly Dictionary<Type, string> s_SupportedTypes = new Dictionary<Type, string>
+        {
+            {typeof(bool), "bool"},
+            {typeof(sbyte), "sbyte"},
+            {typeof(short), "short"},
+            {typeof(int), "int"},
+            {typeof(long), "long"},
+            {typeof(byte), "byte"},
+            {typeof(ushort), "ushort"},
+            {typeof(uint), "uint"},
+            {typeof(ulong), "ulong"},
+            {typeof(float), "float"},
+            {typeof(double), "double"},
+            {typeof(decimal), "decimal"},
+        };
+
+        private static void Init()
+        {
+            if (s_PropertyMenu != null) return;
+
+            var properties = AppDomain.CurrentDomain.GetAssemblies()
+                .SelectMany(assembly => assembly.GetTypes())
+                .SelectMany(type => type.GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.GetProperty))
+                .Where(pi => pi.GetMethod != null && s_SupportedTypes.ContainsKey(pi.PropertyType))
+                .OrderBy(pi => ConvertToMenuItem(pi, false))
+                .ToArray();
+
+            s_PropertyMenu = new GenericMenu();
+            s_PropertyMenu.AddItem(new GUIContent("No Property"), false, arg => s_OnMenuSelected?.Invoke(arg as PropertyInfo), null);
+            s_PropertyMenu.AddItem(new GUIContent("(Non Public Properties)/"), false, ()=>{});
+            s_PropertyMenu.AddSeparator("");
+
+            foreach (var pi in properties)
+            {
+                s_PropertyMenu.AddItem(new GUIContent(ConvertToMenuItem(pi, true)), false, arg => s_OnMenuSelected?.Invoke(arg as PropertyInfo), pi);
+            }
+        }
+
+        private static string ConvertToMenuItem(PropertyInfo p, bool propertyType)
+        {
+            var type = p.DeclaringType;
+            if (type == null) return "";
+            var category = p.GetMethod.IsPublic && type.IsPublic ? "" : "(Non Public Properties)/";
+            var typeName = type.FullName;
+            var asmName = type.Assembly.GetName().Name;
+            if (asmName == "UnityEngine.CoreModule")
+                asmName = "UnityEngine";
+            return propertyType
+                ? $"{category}{asmName}/{typeName}/{s_SupportedTypes[p.PropertyType]} {p.Name}"
+                : $"{category}{asmName}/{typeName}/{p.Name}";
+        }
+
+        public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
+        {
+            Init();
+            label = EditorGUI.BeginProperty(position, label, property);
+
+            var path = property.FindPropertyRelative("m_Path");
+            var split = path.stringValue.Split(';', ' ', ',');
+            var name = split.Length == 4 ? $"{split[0]}.{split[3]}" : "No Property";
+
+            position = EditorGUI.PrefixLabel(position, label);
+            if (GUI.Button(position, name, EditorStyles.popup))
+            {
+                s_OnMenuSelected = p =>
+                {
+                    path.stringValue = p == null ? "" : $"{p.DeclaringType?.FullName}, {p.DeclaringType?.Assembly.GetName().Name};{p.Name}";
+                    property.serializedObject.ApplyModifiedProperties();
+                };
+                s_PropertyMenu.DropDown(position);
+            }
+
+            EditorGUI.EndProperty();
+        }
+    }
+#endif
+
+    [Serializable]
+    public class NumericProperty : ISerializationCallbackReceiver
+    {
+        //################################
+        // Serialized Members.
+        //################################
+        [SerializeField] private string m_Path = "";
+
+
+        //################################
+        // Public Members.
+        //################################
+        public double Get()
+        {
+            return _get?.Invoke() ?? -1;
+        }
+
+
+        //################################
+        // Private Members.
+        //################################
+        private Func<double> _get = null;
+
+        private static PropertyInfo GetPropertyInfo(string path)
+        {
+            var p = path.Split(';');
+            if (p.Length != 2) return null;
+
+            var type = Type.GetType(p[0]);
+            if (type == null)
+            {
+                UnityEngine.Debug.LogException(new Exception($"Type '{p[0]}' is not found"));
+                return null;
+            }
+
+            var pInfo = type.GetProperty(p[1], BindingFlags.GetProperty | BindingFlags.Public | BindingFlags.Static);
+            if (pInfo == null)
+            {
+                UnityEngine.Debug.LogException(new Exception($"Member '{p[1]}' is not found in type '{type}'"));
+            }
+
+            return pInfo;
+        }
+
+        private static Func<double> CreateFunc(MethodInfo mInfo)
+        {
+            if (mInfo == null) return null;
+            switch (Type.GetTypeCode(mInfo.ReturnType))
+            {
+                case TypeCode.Boolean:
+                    var f_bool = (Func<bool>) mInfo.CreateDelegate(typeof(Func<bool>));
+                    return () => f_bool() ? 1 : 0;
+                case TypeCode.Byte:
+                    var f_byte = (Func<byte>) mInfo.CreateDelegate(typeof(Func<byte>));
+                    return () => f_byte();
+                case TypeCode.SByte:
+                    var f_sbyte = (Func<sbyte>) mInfo.CreateDelegate(typeof(Func<sbyte>));
+                    return () => f_sbyte();
+                case TypeCode.UInt16:
+                    var f_ushort = (Func<ushort>) mInfo.CreateDelegate(typeof(Func<ushort>));
+                    return () => f_ushort();
+                case TypeCode.UInt32:
+                    var f_uint = (Func<uint>) mInfo.CreateDelegate(typeof(Func<uint>));
+                    return () => f_uint();
+                case TypeCode.UInt64:
+                    var f_ulong = (Func<ulong>) mInfo.CreateDelegate(typeof(Func<ulong>));
+                    return () => f_ulong();
+                case TypeCode.Int16:
+                    var f_short = (Func<short>) mInfo.CreateDelegate(typeof(Func<short>));
+                    return () => f_short();
+                case TypeCode.Int32:
+                    var f_int = (Func<int>) mInfo.CreateDelegate(typeof(Func<int>));
+                    return () => f_int();
+                case TypeCode.Int64:
+                    var f_long = (Func<long>) mInfo.CreateDelegate(typeof(Func<long>));
+                    return () => f_long();
+                case TypeCode.Decimal:
+                    var f_decimal = (Func<decimal>) mInfo.CreateDelegate(typeof(Func<decimal>));
+                    return () => (double) f_decimal();
+                case TypeCode.Double:
+                    var f_double = (Func<double>) mInfo.CreateDelegate(typeof(Func<double>));
+                    return f_double;
+                case TypeCode.Single:
+                    var f_float = (Func<float>) mInfo.CreateDelegate(typeof(Func<float>));
+                    return () => f_float();
+                default:
+                    UnityEngine.Debug.LogException(new Exception(string.Format("Method '{1}.{0}' is not supported.", mInfo.Name, mInfo.DeclaringType)));
+                    return null;
+            }
+        }
+
+        void ISerializationCallbackReceiver.OnBeforeSerialize()
+        {
+        }
+
+        void ISerializationCallbackReceiver.OnAfterDeserialize()
+        {
+            var pInfo = GetPropertyInfo(m_Path);
+            _get = CreateFunc(pInfo?.GetMethod);
+        }
+    }
+}

Samples~/Performance Demo/NanoMonitor/Scripts/Utilities/NumericProperty.cs.meta

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Samples~/Performance Demo/NanoMonitor/Scripts/Utilities/StringBuilderExtensions.cs

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+using System;
+using System.Runtime.CompilerServices;
+using System.Text;
+
+[assembly: InternalsVisibleTo("Coffee.NanoMonitor.Tests")]
+
+namespace Coffee.NanoMonitor
+{
+    internal static class StringBuilderExtensions
+    {
+        public static bool IsEqual(this StringBuilder sb, string other)
+        {
+            if (sb == null || other == null) return false;
+            if (sb.Length != other.Length) return false;
+
+            for (var i = 0; i < sb.Length; i++)
+            {
+                if (sb[i] != other[i]) return false;
+            }
+
+            return true;
+        }
+
+        public static void AppendFormatNoAlloc(this StringBuilder sb, string format, double arg0 = 0, double arg1 = 0, double arg2 = 0, double arg3 = 0)
+        {
+            for (var i = 0; i < format.Length; i++)
+            {
+                var c = format[i];
+
+                // Append formatted value
+                if (c == '{')
+                {
+                    i = GetFormat(format, i, out var argIndex, out var padding, out var precision, out var alignment);
+
+                    switch (argIndex)
+                    {
+                        case 0:
+                            sb.AppendDouble(arg0, padding, precision, alignment);
+                            break;
+                        case 1:
+                            sb.AppendDouble(arg1, padding, precision, alignment);
+                            break;
+                        case 2:
+                            sb.AppendDouble(arg2, padding, precision, alignment);
+                            break;
+                        case 3:
+                            sb.AppendDouble(arg3, padding, precision, alignment);
+                            break;
+                    }
+
+                    continue;
+                }
+
+                // Append character
+                sb.Append(c);
+            }
+        }
+
+        internal static void AppendInteger(this StringBuilder sb, double number, int padding, int precision, int alignment)
+        {
+            number = Math.Truncate(number);
+            var sign = number < 0;
+            number = sign ? -number : number;
+
+            var startIndex = sb.Length;
+            do
+            {
+                var n = Math.Truncate(number % 10);
+                number /= 10;
+
+                sb.Append((char) (n + 48));
+            } while (1 <= number || (sb.Length - startIndex) < padding);
+
+            if (sign)
+            {
+                sb.Append('-');
+            }
+
+            var endIndex = sb.Length - 1;
+
+            sb.Reverse(startIndex, endIndex);
+            sb.Alignment(alignment, startIndex, endIndex);
+        }
+
+        internal static void AppendDouble(this StringBuilder sb, double number, int padding, int precision, int alignment)
+        {
+            var integer = Math.Truncate(number);
+            var startIndex = sb.Length;
+            sb.AppendInteger(integer, padding, precision, 0);
+
+            if (0 < precision)
+            {
+                sb.Append('.');
+                number -= integer;
+                number = Math.Round(number, precision);
+                for (var p = 0; p < precision; p++)
+                {
+                    number *= 10;
+                    integer = (long) number;
+                    sb.Append((char) (integer + 48));
+                    number -= integer;
+                    number = Math.Round(number, precision);
+                }
+            }
+
+            sb.Alignment(alignment, startIndex, sb.Length - 1);
+        }
+
+        internal static void Reverse(this StringBuilder sb, int start, int end)
+        {
+            while (start < end)
+            {
+                var c = sb[start];
+                sb[start] = sb[end];
+                sb[end] = c;
+
+                start++;
+                end--;
+            }
+        }
+
+        internal static void Alignment(this StringBuilder sb, int alignment, int start, int end)
+        {
+            if (alignment == 0) return;
+
+            var len = end - start + 1;
+            if (0 < alignment && len < alignment)
+            {
+                sb.Append(' ', alignment - len);
+                for (var i = 0; i < len; i++)
+                {
+                    var c = sb[end - i];
+                    sb[end - i] = sb[start + alignment - i - 1];
+                    sb[start + alignment - i - 1] = c;
+                }
+            }
+            else if (alignment < 0 && len < -alignment)
+            {
+                sb.Append(' ', -alignment - len);
+            }
+        }
+
+        internal static int GetFormat(string format, int i, out int argIndex, out int padding, out int precision, out int alignment)
+        {
+            argIndex = -1;
+            padding = 0;
+            precision = 0;
+            alignment = 0;
+
+            var alignmentSign = false;
+            var readFlag = 0;
+
+            for (; i < format.Length; i++)
+            {
+                var c = format[i];
+
+                // End format
+                if (c == '}')
+                {
+                    return i;
+                }
+
+                // Start format
+                if (c == '{')
+                {
+                    readFlag = 1;
+                }
+
+                // After '{': Read argument index and format
+                else if (readFlag == 1)
+                {
+                    if ('0' <= c && c <= '3')
+                    {
+                        argIndex = c - 48;
+                    }
+                    else if (c == ',')
+                    {
+                        readFlag = 2;
+                    }
+                    else if (c == ':')
+                    {
+                        readFlag = 3;
+                    }
+                }
+
+                //After ',': Read alignment value
+                else if (readFlag == 2)
+                {
+                    if ('0' <= c && c <= '9')
+                    {
+                        alignment = alignment * 10 + (alignmentSign ? 48 - c : c - 48);
+                    }
+                    else if (c == '-')
+                    {
+                        alignmentSign = true;
+                    }
+                    else if (c == ':')
+                    {
+                        readFlag = 3;
+                    }
+                }
+
+                // After ':': Read format for integral
+                else if (readFlag == 3)
+                {
+                    if (c == '.')
+                    {
+                        precision = 0;
+                        readFlag = 4;
+                    }
+                    else if (c == '0')
+                    {
+                        padding++;
+                    }
+                    // Legacy mode
+                    else if ('1' <= c && c <= '9')
+                    {
+                        precision = c - 48;
+                    }
+                }
+
+                // After '.': Read decimal precision value
+                else if (readFlag == 4)
+                {
+                    if (c == '0')
+                    {
+                        precision++;
+                    }
+                }
+            }
+
+            argIndex = -1;
+            return i;
+        }
+    }
+}

Samples~/Performance Demo/NanoMonitor/Scripts/Utilities/StringBuilderExtensions.cs.meta

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