wasSharp – Diff between revs 26 and 27

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1 /////////////////////////////////////////////////////////////////////////// 1 ///////////////////////////////////////////////////////////////////////////
2 // Copyright (C) Wizardry and Steamworks 2013 - License: GNU GPLv3 // 2 // Copyright (C) Wizardry and Steamworks 2013 - License: GNU GPLv3 //
3 // Please see: http://www.gnu.org/licenses/gpl.html for legal details, // 3 // Please see: http://www.gnu.org/licenses/gpl.html for legal details, //
4 // rights of fair usage, the disclaimer and warranty conditions. // 4 // rights of fair usage, the disclaimer and warranty conditions. //
5 /////////////////////////////////////////////////////////////////////////// 5 ///////////////////////////////////////////////////////////////////////////
6   6  
7 using System; 7 using System;
8 using System.Collections.Generic; 8 using System.Collections.Generic;
9 using System.Linq; 9 using System.Linq;
10 using System.Reflection; 10 using System.Reflection;
11   11  
12 namespace wasSharp 12 namespace wasSharp
13 { 13 {
14 public static class Reflection 14 public static class Reflection
15 { 15 {
16 /////////////////////////////////////////////////////////////////////////// 16 ///////////////////////////////////////////////////////////////////////////
17 // Copyright (C) 2014 Wizardry and Steamworks - License: GNU GPLv3 // 17 // Copyright (C) 2014 Wizardry and Steamworks - License: GNU GPLv3 //
18 /////////////////////////////////////////////////////////////////////////// 18 ///////////////////////////////////////////////////////////////////////////
19 /// <summary> 19 /// <summary>
20 /// Retrieves an attribute of type T from an enumeration. 20 /// Retrieves an attribute of type T from an enumeration.
21 /// </summary> 21 /// </summary>
22 /// <returns>an attribute of type T</returns> 22 /// <returns>an attribute of type T</returns>
23 public static T GetAttributeFromEnumValue<T>(Enum value) where T : Attribute 23 public static T GetAttributeFromEnumValue<T>(Enum value) where T : Attribute
24 { 24 {
25 return (T) value.GetType() 25 return (T)value.GetType()
26 .GetRuntimeField(value.ToString()) 26 .GetRuntimeField(value.ToString())
27 .GetCustomAttributes(typeof(T), false) 27 .GetCustomAttributes(typeof(T), false)
28 .SingleOrDefault(); 28 .SingleOrDefault();
29 } 29 }
30   30  
31 /////////////////////////////////////////////////////////////////////////// 31 ///////////////////////////////////////////////////////////////////////////
32 // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 // 32 // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 //
33 /////////////////////////////////////////////////////////////////////////// 33 ///////////////////////////////////////////////////////////////////////////
34 /// <summary> 34 /// <summary>
35 /// Returns all the attributes of type T of an enumeration. 35 /// Returns all the attributes of type T of an enumeration.
36 /// </summary> 36 /// </summary>
37 /// <typeparam name="T">the attribute to retrieve</typeparam> 37 /// <typeparam name="T">the attribute to retrieve</typeparam>
38 /// <returns>a list of attributes</returns> 38 /// <returns>a list of attributes</returns>
39 public static IEnumerable<T> GetEnumAttributes<T>(Enum e) where T : Attribute 39 public static IEnumerable<T> GetEnumAttributes<T>(Enum e) where T : Attribute
40 { 40 {
41 return e.GetType().GetRuntimeFields().ToArray() 41 return e.GetType().GetRuntimeFields().ToArray()
42 .AsParallel() 42 .AsParallel()
43 .Select(o => GetAttributeFromEnumValue<T>((Enum) o.GetValue(Activator.CreateInstance<T>()))); 43 .Select(o => GetAttributeFromEnumValue<T>((Enum)o.GetValue(Activator.CreateInstance<T>())));
44 } 44 }
45   45  
46 /////////////////////////////////////////////////////////////////////////// 46 ///////////////////////////////////////////////////////////////////////////
47 // Copyright (C) 2014 Wizardry and Steamworks - License: GNU GPLv3 // 47 // Copyright (C) 2014 Wizardry and Steamworks - License: GNU GPLv3 //
48 /////////////////////////////////////////////////////////////////////////// 48 ///////////////////////////////////////////////////////////////////////////
49 /// <summary> 49 /// <summary>
50 /// Returns all the field names of an enumeration. 50 /// Returns all the field names of an enumeration.
51 /// </summary> 51 /// </summary>
52 /// <returns>the field names</returns> 52 /// <returns>the field names</returns>
53 public static IEnumerable<string> GetEnumNames<T>() 53 public static IEnumerable<string> GetEnumNames<T>()
54 { 54 {
55 return 55 return
56 typeof(T).GetRuntimeFields().ToArray() 56 typeof(T).GetRuntimeFields().ToArray()
57 .AsParallel() 57 .AsParallel()
58 .Select(o => o.GetCustomAttribute(typeof(NameAttribute), false)) 58 .Select(o => o.GetCustomAttribute(typeof(NameAttribute), false))
59 .Select(o => (o as NameAttribute)?.Name) 59 .Select(o => (o as NameAttribute)?.Name)
60 .Where(o => !string.IsNullOrEmpty(o)) 60 .Where(o => !string.IsNullOrEmpty(o))
61 .Select(o => o); 61 .Select(o => o);
62 } 62 }
63   63  
64 /////////////////////////////////////////////////////////////////////////// 64 ///////////////////////////////////////////////////////////////////////////
65 // Copyright (C) 2014 Wizardry and Steamworks - License: GNU GPLv3 // 65 // Copyright (C) 2014 Wizardry and Steamworks - License: GNU GPLv3 //
66 /////////////////////////////////////////////////////////////////////////// 66 ///////////////////////////////////////////////////////////////////////////
67 /// <summary> 67 /// <summary>
68 /// Returns all the values of an enumeration. 68 /// Returns all the values of an enumeration.
69 /// </summary> 69 /// </summary>
70 /// <returns>the values of the enumeration</returns> 70 /// <returns>the values of the enumeration</returns>
71 public static IEnumerable<T> GetEnumValues<T>() 71 public static IEnumerable<T> GetEnumValues<T>()
72 { 72 {
73 return Enum.GetValues(typeof(T)).Cast<object>().Select(value => (T) value); 73 return Enum.GetValues(typeof(T)).Cast<object>().Select(value => (T)value);
74 } 74 }
75   75  
76 /////////////////////////////////////////////////////////////////////////// 76 ///////////////////////////////////////////////////////////////////////////
77 // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 // 77 // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 //
78 /////////////////////////////////////////////////////////////////////////// 78 ///////////////////////////////////////////////////////////////////////////
79 /// <summary> 79 /// <summary>
80 /// Get the name from an enumeration value. 80 /// Get the name from an enumeration value.
81 /// </summary> 81 /// </summary>
82 /// <param name="value">an enumeration value</param> 82 /// <param name="value">an enumeration value</param>
83 /// <returns>the description or the empty string</returns> 83 /// <returns>the description or the empty string</returns>
84 public static string GetNameFromEnumValue(Enum value) 84 public static string GetNameFromEnumValue(Enum value)
85 { 85 {
86 var attribute = value.GetType() 86 var attribute = value.GetType()
87 .GetRuntimeField(value.ToString()) 87 .GetRuntimeField(value.ToString())
88 .GetCustomAttributes(typeof(NameAttribute), false) 88 .GetCustomAttributes(typeof(NameAttribute), false)
89 .SingleOrDefault() as NameAttribute; 89 .SingleOrDefault() as NameAttribute;
90 return attribute?.Name; 90 return attribute?.Name;
91 } 91 }
92   92  
93 /////////////////////////////////////////////////////////////////////////// 93 ///////////////////////////////////////////////////////////////////////////
94 // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 // 94 // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 //
95 /////////////////////////////////////////////////////////////////////////// 95 ///////////////////////////////////////////////////////////////////////////
96 /// <summary> 96 /// <summary>
97 /// Get the description from an enumeration value. 97 /// Get the description from an enumeration value.
98 /// </summary> 98 /// </summary>
99 /// <param name="value">an enumeration value</param> 99 /// <param name="value">an enumeration value</param>
100 /// <returns>the description or the empty string</returns> 100 /// <returns>the description or the empty string</returns>
101 public static string GetDescriptionFromEnumValue(Enum value) 101 public static string GetDescriptionFromEnumValue(Enum value)
102 { 102 {
103 var attribute = value.GetType() 103 var attribute = value.GetType()
104 .GetRuntimeField(value.ToString()) 104 .GetRuntimeField(value.ToString())
105 .GetCustomAttributes(typeof(DescriptionAttribute), false) 105 .GetCustomAttributes(typeof(DescriptionAttribute), false)
106 .SingleOrDefault() as DescriptionAttribute; 106 .SingleOrDefault() as DescriptionAttribute;
107 return attribute?.Description; 107 return attribute?.Description;
108 } 108 }
109   109  
110 /////////////////////////////////////////////////////////////////////////// 110 ///////////////////////////////////////////////////////////////////////////
111 // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 // 111 // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 //
112 /////////////////////////////////////////////////////////////////////////// 112 ///////////////////////////////////////////////////////////////////////////
113 /// <summary> 113 /// <summary>
114 /// Get enumeration value from its name attribute. 114 /// Get enumeration value from its name attribute.
115 /// </summary> 115 /// </summary>
116 /// <typeparam name="T">the enumeration type</typeparam> 116 /// <typeparam name="T">the enumeration type</typeparam>
117 /// <param name="name">the description of a member</param> 117 /// <param name="name">the description of a member</param>
118 /// <param name="comparison">the string comparison to use</param> 118 /// <param name="comparison">the string comparison to use</param>
119 /// <returns>the value or the default of T if case no name attribute found</returns> 119 /// <returns>the value or the default of T if case no name attribute found</returns>
120 public static T GetEnumValueFromName<T>(string name, 120 public static T GetEnumValueFromName<T>(string name,
121 StringComparison comparison = StringComparison.OrdinalIgnoreCase) 121 StringComparison comparison = StringComparison.OrdinalIgnoreCase)
122 { 122 {
123 var field = typeof(T).GetRuntimeFields().ToArray() 123 var field = typeof(T).GetRuntimeFields().ToArray()
124 .AsParallel().SelectMany(f => f.GetCustomAttributes( 124 .AsParallel().SelectMany(f => f.GetCustomAttributes(
125 typeof(NameAttribute), false), ( 125 typeof(NameAttribute), false), (
126 f, a) => new {Field = f, Att = a}) 126 f, a) => new { Field = f, Att = a })
127 .SingleOrDefault(a => String.Equals(((NameAttribute) a.Att) 127 .SingleOrDefault(a => string.Equals(((NameAttribute)a.Att)
128 .Name, name, comparison)); 128 .Name, name, comparison));
129 return field != null ? (T) field.Field.GetValue(Activator.CreateInstance<T>()) : default(T); 129 return field != null ? (T)field.Field.GetValue(Activator.CreateInstance<T>()) : default(T);
130 } 130 }
131   131  
132 /////////////////////////////////////////////////////////////////////////// 132 ///////////////////////////////////////////////////////////////////////////
133 // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 // 133 // Copyright (C) 2015 Wizardry and Steamworks - License: GNU GPLv3 //
134 /////////////////////////////////////////////////////////////////////////// 134 ///////////////////////////////////////////////////////////////////////////
135 /// <summary> 135 /// <summary>
136 /// Get the name of a structure member. 136 /// Get the name of a structure member.
137 /// </summary> 137 /// </summary>
138 /// <typeparam name="T">the type of the structure to search</typeparam> 138 /// <typeparam name="T">the type of the structure to search</typeparam>
139 /// <param name="structure">the structure to search</param> 139 /// <param name="structure">the structure to search</param>
140 /// <param name="item">the value of the item to search</param> 140 /// <param name="item">the value of the item to search</param>
141 /// <returns>the description or the empty string</returns> 141 /// <returns>the description or the empty string</returns>
142 public static string GetStructureMemberName<T>(T structure, object item) where T : struct 142 public static string GetStructureMemberName<T>(T structure, object item) where T : struct
143 { 143 {
144 var field = typeof(T).GetRuntimeFields().ToArray() 144 var field = typeof(T).GetRuntimeFields().ToArray()
145 .AsParallel().SelectMany(f => f.GetCustomAttributes(typeof(NameAttribute), false), 145 .AsParallel().SelectMany(f => f.GetCustomAttributes(typeof(NameAttribute), false),
146 (f, a) => new {Field = f, Att = a}).SingleOrDefault(f => f.Field.GetValue(structure).Equals(item)); 146 (f, a) => new { Field = f, Att = a }).SingleOrDefault(f => f.Field.GetValue(structure).Equals(item));
147 return field != null ? ((NameAttribute) field.Att).Name : string.Empty; 147 return field != null ? ((NameAttribute)field.Att).Name : string.Empty;
148 } 148 }
149   149  
150 /////////////////////////////////////////////////////////////////////////// 150 ///////////////////////////////////////////////////////////////////////////
151 // Copyright (C) 2016 Wizardry and Steamworks - License: GNU GPLv3 // 151 // Copyright (C) 2016 Wizardry and Steamworks - License: GNU GPLv3 //
152 /////////////////////////////////////////////////////////////////////////// 152 ///////////////////////////////////////////////////////////////////////////
153 /// <summary> 153 /// <summary>
154 /// Get field or property from a class by supplying a path. 154 /// Get field or property from a class by supplying a path.
155 /// </summary> 155 /// </summary>
156 /// <typeparam name="T">the type of the object</typeparam> 156 /// <typeparam name="T">the type of the object</typeparam>
157 /// <param name="o">the object</param> 157 /// <param name="o">the object</param>
158 /// <param name="path">the fully qualified path to the field of property</param> 158 /// <param name="path">the fully qualified path to the field of property</param>
159 /// <returns> 159 /// <returns>
160 /// the last object in the fully qualified path or null in case the field or property could not be found 160 /// the last object in the fully qualified path or null in case the field or property could not be found
161 /// </returns> 161 /// </returns>
162 public static object GetFP<T>(this T o, string path) 162 public static object GetFP<T>(this T o, string path)
163 { 163 {
164 if (string.IsNullOrEmpty(path)) return null; 164 if (string.IsNullOrEmpty(path)) return null;
165 if (o == null) return null; 165 if (o == null) return null;
166   166  
167 var memberType = o.GetType(); 167 var memberType = o.GetType();
168 var components = path.Split('.'); 168 var components = path.Split('.');
169   169  
170 var f = memberType.GetRuntimeField(components[0]); 170 var f = memberType.GetRuntimeField(components[0]);
171 var p = memberType.GetRuntimeProperty(components[0]); 171 var p = memberType.GetRuntimeProperty(components[0]);
172   172  
173 if (f != null) 173 if (f != null)
174 return components.Length > 1 174 return components.Length > 1
175 ? GetFP(f.GetValue(o), 175 ? GetFP(f.GetValue(o),
176 components.Skip(1).Aggregate((a, i) => a + @"." + i)) 176 components.Skip(1).Aggregate((a, i) => a + @"." + i))
177 : memberType.GetRuntimeField(path).GetValue(o); 177 : memberType.GetRuntimeField(path).GetValue(o);
178   178  
179 if (p != null) 179 if (p != null)
180 return components.Length > 1 180 return components.Length > 1
181 ? GetFP(p.GetValue(o), 181 ? GetFP(p.GetValue(o),
182 components.Skip(1).Aggregate((a, i) => a + @"." + i)) 182 components.Skip(1).Aggregate((a, i) => a + @"." + i))
183 : memberType.GetRuntimeProperty(path).GetValue(o); 183 : memberType.GetRuntimeProperty(path).GetValue(o);
184   184  
185 return null; 185 return null;
186 } 186 }
187   187  
188 /////////////////////////////////////////////////////////////////////////// 188 ///////////////////////////////////////////////////////////////////////////
189 // Copyright (C) 2016 Wizardry and Steamworks - License: GNU GPLv3 // 189 // Copyright (C) 2016 Wizardry and Steamworks - License: GNU GPLv3 //
190 /////////////////////////////////////////////////////////////////////////// 190 ///////////////////////////////////////////////////////////////////////////
191 /// <summary> 191 /// <summary>
192 /// Get field or property info from a class by supplying a path. 192 /// Get field or property info from a class by supplying a path.
193 /// </summary> 193 /// </summary>
194 /// <typeparam name="T">the type of the object</typeparam> 194 /// <typeparam name="T">the type of the object</typeparam>
195 /// <param name="o">the object</param> 195 /// <param name="o">the object</param>
196 /// <param name="path">the fully qualified path to the field of property</param> 196 /// <param name="path">the fully qualified path to the field of property</param>
197 /// <returns> 197 /// <returns>
198 /// the field or property info of the last object in the path or null if the object cannot be found 198 /// the field or property info of the last object in the path or null if the object cannot be found
199 /// </returns> 199 /// </returns>
200 public static object GetFPInfo<T>(this T o, string path) 200 public static object GetFPInfo<T>(this T o, string path)
201 { 201 {
202 if (string.IsNullOrEmpty(path)) return null; 202 if (string.IsNullOrEmpty(path)) return null;
203 if (o == null) return null; 203 if (o == null) return null;
204   204  
205 var memberType = o.GetType(); 205 var memberType = o.GetType();
206 var components = path.Split('.'); 206 var components = path.Split('.');
207   207  
208 var f = memberType.GetRuntimeField(components[0]); 208 var f = memberType.GetRuntimeField(components[0]);
209 var p = memberType.GetRuntimeProperty(components[0]); 209 var p = memberType.GetRuntimeProperty(components[0]);
210   210  
211 if (f != null) 211 if (f != null)
212 return components.Length > 1 212 return components.Length > 1
213 ? GetFPInfo(f.GetValue(o), 213 ? GetFPInfo(f.GetValue(o),
214 components.Skip(1).Aggregate((a, i) => a + @"." + i)) 214 components.Skip(1).Aggregate((a, i) => a + @"." + i))
215 : memberType.GetRuntimeField(path); 215 : memberType.GetRuntimeField(path);
216   216  
217 if (p != null) 217 if (p != null)
218 return components.Length > 1 218 return components.Length > 1
219 ? GetFPInfo(p.GetValue(o), 219 ? GetFPInfo(p.GetValue(o),
220 components.Skip(1).Aggregate((a, i) => a + @"." + i)) 220 components.Skip(1).Aggregate((a, i) => a + @"." + i))
221 : memberType.GetRuntimeProperty(path); 221 : memberType.GetRuntimeProperty(path);
222   222  
223 return null; 223 return null;
224 } 224 }
225   225  
226 /////////////////////////////////////////////////////////////////////////// 226 ///////////////////////////////////////////////////////////////////////////
227 // Copyright (C) 2016 Wizardry and Steamworks - License: GNU GPLv3 // 227 // Copyright (C) 2016 Wizardry and Steamworks - License: GNU GPLv3 //
228 /////////////////////////////////////////////////////////////////////////// 228 ///////////////////////////////////////////////////////////////////////////
229 /// <summary>Return all the run-time properties for an object.</summary> 229 /// <summary>Return all the run-time properties for an object.</summary>
230 /// <param name="o">the object whose properties to return</param> 230 /// <param name="o">the object whose properties to return</param>
231 /// <returns>the property information for all the properties of the object</returns> 231 /// <returns>the property information for all the properties of the object</returns>
232 public static IEnumerable<PropertyInfo> GetPropertiesInfo<T>(this T o) 232 public static IEnumerable<PropertyInfo> GetPropertiesInfo<T>(this T o)
233 { 233 {
234 foreach (var p in o.GetType().GetRuntimeProperties()) 234 foreach (var p in o.GetType().GetRuntimeProperties())
235 yield return p; 235 yield return p;
236 } 236 }
237   237  
238 /////////////////////////////////////////////////////////////////////////// 238 ///////////////////////////////////////////////////////////////////////////
239 // Copyright (C) 2016 Wizardry and Steamworks - License: GNU GPLv3 // 239 // Copyright (C) 2016 Wizardry and Steamworks - License: GNU GPLv3 //
240 /////////////////////////////////////////////////////////////////////////// 240 ///////////////////////////////////////////////////////////////////////////
241 /// <summary> 241 /// <summary>
242 /// Enumerate all the base types recursively starting from a type. 242 /// Enumerate all the base types recursively starting from a type.
243 /// </summary> 243 /// </summary>
244 /// <param name="type">the type</param> 244 /// <param name="type">the type</param>
245 /// <returns>an enumeration of all base types</returns> 245 /// <returns>an enumeration of all base types</returns>
246 public static IEnumerable<Type> GetBaseTypes(this Type type) 246 public static IEnumerable<Type> GetBaseTypes(this Type type)
247 { 247 {
248 var baseType = type.GetTypeInfo().BaseType; 248 var baseType = type.GetTypeInfo().BaseType;
249 if (baseType == null) 249 if (baseType == null)
250 yield break; 250 yield break;
251 yield return baseType; 251 yield return baseType;
252 foreach (var t in GetBaseTypes(baseType)) 252 foreach (var t in GetBaseTypes(baseType))
253 { 253 {
254 yield return t; 254 yield return t;
255 } 255 }
256 } 256 }
257   257  
258 /// <summary> 258 /// <summary>
259 /// A generic name attribute. 259 /// A generic name attribute.
260 /// </summary> 260 /// </summary>
261 public class NameAttribute : Attribute 261 public class NameAttribute : Attribute
262 { 262 {
263 protected readonly string name; 263 protected readonly string name;
264   264  
265 public NameAttribute(string name) 265 public NameAttribute(string name)
266 { 266 {
267 this.name = name; 267 this.name = name;
268 } 268 }
269   269  
270 public string Name => name; 270 public string Name => name;
271 } 271 }
272   272  
273 /// <summary> 273 /// <summary>
274 /// A generic description attribute. 274 /// A generic description attribute.
275 /// </summary> 275 /// </summary>
276 public class DescriptionAttribute : Attribute 276 public class DescriptionAttribute : Attribute
277 { 277 {
278 protected readonly string description; 278 protected readonly string description;
279   279  
280 public DescriptionAttribute(string description) 280 public DescriptionAttribute(string description)
281 { 281 {
282 this.description = description; 282 this.description = description;
283 } 283 }
284   284  
285 public string Description => description; 285 public string Description => description;
286 } 286 }
287 } 287 }
288 } -  
289   288 }
-   289  
290
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