Changeset 400 for trunk/Include/Classes/ActiveBasic/misc.ab

Timestamp:

Jan 22, 2008, 9:19:59 PM (17 years ago)

Author:

イグトランス (egtra)

Message:

_System_CThreadCollectionでのクラスインスタンスへのポインタの使用を除去、参照変数構文へ。

File:

• trunk/Include/Classes/ActiveBasic/misc.ab (modified) (1 diff)

trunk/Include/Classes/ActiveBasic/misc.ab

@@ -2 +2 @@
 
 Namespace ActiveBasic
+    Namespace Detail
+        /*!
+        @brief baseがderivedの基底クラスかどうか判定する。
+        @param[in] base 基底クラス
+        @param[in] derived 派生クラス
+        @retval True baseがderivedの基底クラスである
+        @retval False 基底クラスでない
+        @exception ArgumentNullException 引数のどちらか又は双方がNoghing
+        @auther Egtra
+        @date 2008/01/21
+        */
+        Function IsBaseOf(base As System.TypeInfo, derived As System.TypeInfo) As Boolean
+            Imports System
+            If IsNothing(base) Then
+                Throw New ArgumentNullException("base")
+            ElseIf IsNothing(derived) Then
+                Throw New ArgumentNullException("derived")
+            End If
+            Do
+                IsBaseOf = derived.Equals(base)
+                If IsBaseOf Then
+                    Exit Function
+                End If
+                derived = derived.BaseType
+            Loop Until IsNothing(derived)
+        End Function
+    End Namespace
+
     Function IsNothing(o As Object) As Boolean
         Return Object.ReferenceEquals(o, Nothing)