source: trunk/TestCase/SimpleTestCase/DelegateTest.ab @ 491

Namespace DelegateTest

Class StringEx
    Inherits String
Public
    Sub StringEx( str As String )
        String( str )
    End Sub
End Class

Delegate Sub Callback1()
Delegate Function Callback2() As Long
Delegate Sub Callback3( a As Long )
Delegate Sub Callback4( a As StringEx )
Delegate Function Callback7( str As String ) As String

Class TestClass
    proc1Flag As Boolean
    proc2Flag As Boolean
    proc3Flag As Boolean
    proc4Flag As Boolean
    proc5Flag As Boolean
    proc6Flag As Boolean
    proc8Flag As Boolean

    Static staticProc1Flag = False As Boolean

Public
    Sub TestClass()
        ClearFlags()
    End Sub

    Sub ClearFlags()
        proc1Flag = False
        proc2Flag = False
        proc3Flag = False
        proc4Flag = False
        proc5Flag = False
        proc6Flag = False
        proc8Flag = True
    End Sub
    Function CheckFlags() As Boolean
        Return proc1Flag and proc2Flag and proc3Flag and proc4Flag and proc5Flag and proc6Flag and proc8Flag
    End Function

    Sub Proc1()
        proc1Flag = True
    End Sub

    Function Proc2() As Long
        proc2Flag = True
    End Function

    Sub Proc3or4( a As Long )
        proc3Flag = (a=100)
    End Sub

    Sub Proc3or4( a As String )
        proc4Flag = (a="Proc4 calling")
    End Sub

    Sub Proc5( a As String )
        proc5Flag = (a="Proc4 calling")
    End Sub

    Sub Proc6( a As String )
        proc6Flag = (a="Proc4 calling")
    End Sub

    Static Function Proc7( str As String ) As StringEx
        Return New StringEx( "Proc7 result[" + str + "]" )
    End Function

    Sub Proc8( a As String )
        proc8Flag = False
    End Sub
End Class

Sub TestMain()
    Dim testObj As TestClass
    Dim dg1 = New Callback1( AddressOf(testObj.Proc1) )
    Dim dg2 = New Callback2( AddressOf(testObj.Proc2) )
    Dim dg3 = New Callback3( AddressOf(testObj.Proc3or4) )
    Dim dg4 = New Callback4( AddressOf(testObj.Proc3or4) )
    dg4 += AddressOf(testObj.Proc5)
    dg4 += AddressOf(testObj.Proc6)
    dg4 += AddressOf(testObj.Proc8)
    dg4 -= AddressOf(testObj.Proc8)

    dg1()
    dg2()
    dg3( 100 )
    dg4( New StringEx( "Proc4 calling" ) )  ' 反変引数サポートのテスト

    UnitTest( "Delegate1", testObj.CheckFlags() )

    Dim dg7 = New Callback7( AddressOf(TestClass.Proc7) )   ' 共変戻り値サポートのテスト
    UnitTest( "Delegate2", dg7( "test value" ) = "Proc7 result[test value]" )

End Sub

End Namespace

DelegateTest.TestMain()