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comparison HowTo/Patterns/DuckTyping.cs @ 0:f990fcb411a9

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Копия текущей версии из github
author cin
date Thu, 27 Mar 2014 21:46:09 +0400
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-1:000000000000 0:f990fcb411a9
1 using System;
2
3 using NUnit.Framework;
4
5 using BLToolkit.Patterns;
6
7 namespace HowTo.Patterns
8 {
9 //[TestFixture]
10 public class DuckTyping
11 {
12 // By default, all interface methods are optional.
13 //
14 public interface OptionalInterface
15 {
16 // If the source object does not implement the [b]Method1[/b], a NotImplementedException is thrown at [i]run time[/i].
17 //
18 void Method1();
19
20 // If the source object does not implement the [b]Method2[/b], a TypeBuilderException is thrown at [i]build time[/i].
21 //
22 /*[a]*/[MustImplement]/*[/a]*/
23 void Method2();
24
25 // If the source object does not implement the [b]Method3[/b], an empty stub is genegated.
26 // The return value and all output parameters will be set to default values.
27 //
28 /*[a]*/[MustImplement(false, false)]/*[/a]*/
29 int Method3();
30 }
31
32 // The MustImplement attribute also can control the entire interface.
33 //
34 /*[a]*/[MustImplement]/*[/a]*/
35 public interface RequiredInterface
36 {
37 // If the source object does not implement the [b]Method1[/b], a TypeBuilderException is thrown at [i]build time[/i].
38 //
39 void Method1();
40
41 // If the source object does not implement the [b]Method2[/b], a NotImplementedException is thrown at [i]run time[/i].
42 //
43 /*[a]*/[MustImplement(false)]/*[/a]*/
44 void Method2();
45
46 // If the source object does not implement the [b]Method3[/b], an empty stub is genegated.
47 // The return value and all output parameters will be set to default values.
48 //
49 /*[a]*/[MustImplement(false, false)]/*[/a]*/
50 int Method3();
51 }
52
53 public class TestClass
54 {
55 public int Method3()
56 {
57 return 3;
58 }
59 }
60
61 // Two or more interfaces can be mixed together.
62 //
63 public interface InterfaceMix : RequiredInterface, OptionalInterface
64 {
65 }
66
67 //[Test]
68 public void Test()
69 {
70 InterfaceMix duck = /*[a]*/BLToolkit.Patterns.DuckTyping.Implement/*[/a]*/<InterfaceMix>(new TestClass());
71 RequiredInterface duck1 = duck;
72 OptionalInterface duck2 = duck;
73
74 duck1.Method1();
75 duck2.Method1();
76 }
77 }
78 }