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git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@35 7ec92016-0320-0410-acc4-a06ded1c099a

tools/RegressionTest/Test_Visitor.cpp

@@ -0,0 +1,158 @@
+#include <iostream>
+#include "Visitor.h"
+
+using namespace ::Loki;
+
+class RasterBitmap 
+    : public BaseVisitable<>
+{
+public:
+    DEFINE_VISITABLE()
+};
+
+class Paragraph
+    : public BaseVisitable<>
+{
+public:
+    DEFINE_VISITABLE()
+};
+
+
+class ParagraphEx 
+    : public Paragraph
+{
+public:
+    DEFINE_VISITABLE()
+};
+
+class DummyParagraph
+    : public Paragraph
+{
+public:
+    DEFINE_VISITABLE()
+};
+
+class DummyRasterBitmap
+    : public RasterBitmap
+{
+public:
+    DEFINE_VISITABLE()
+};
+
+class SomeVisitor 
+    : public BaseVisitor
+    , public Visitor<TYPELIST_3(RasterBitmap, Paragraph, ParagraphEx)>
+    , public BaseVisitorImpl<TYPELIST_2(DummyParagraph, DummyRasterBitmap)>
+{
+public:
+     void Visit(RasterBitmap&)
+     {
+         std::cout << "SomeVisitor::Visit(RasterBitmap&)" << '\n';
+     }
+
+     void Visit(Paragraph &)
+     {
+         std::cout << "SomeVisitor::Visit(Paragraph&)" << '\n';
+     }
+
+     void Visit(ParagraphEx &)
+     {
+         std::cout << "SomeVisitor::Visit(ParagraphEx&)" << '\n';
+     }
+};
+
+
+void Test_Visitor()
+{
+    SomeVisitor     someVisit;
+    BaseVisitor    &baseVisit = someVisit;
+
+    RasterBitmap    rast;
+    rast.Accept(baseVisit);
+    
+    Paragraph       par;
+    par.Accept(baseVisit);
+
+    ParagraphEx     parEx;
+    parEx.Accept(baseVisit);
+
+    DummyRasterBitmap dummyRast;
+    dummyRast.Accept(baseVisit);
+
+    DummyParagraph    dummyPar;
+    dummyPar.Accept(baseVisit);
+}
+
+typedef CyclicVisitor
+<
+    void,
+    TYPELIST_3(class DocElement, class RasterBitmap2, class Paragraph2)
+>
+MyCyclicVisitor;
+
+
+class DocElement
+{
+public:
+    virtual void Accept(MyCyclicVisitor &) = 0;
+    virtual ~DocElement() {}
+};
+
+class RasterBitmap2
+    : public DocElement
+{
+public:
+    DEFINE_CYCLIC_VISITABLE(MyCyclicVisitor)
+};
+
+class Paragraph2 
+    : public DocElement
+{
+public:
+    DEFINE_CYCLIC_VISITABLE(MyCyclicVisitor)
+};
+
+class SomeVisitor2
+    : public MyCyclicVisitor
+{
+public:
+     void Visit(DocElement &)
+     {
+         std::cout << "SomeVisitor::Visit(DocElement&)" << '\n';
+     }
+
+     void Visit(Paragraph2 &)
+     {
+         std::cout << "SomeVisitor::Visit(Paragraph2&)" << '\n';
+     }
+
+     void Visit(RasterBitmap2 &)
+     {
+         std::cout << "SomeVisitor::Visit(RasterBitmap2&)" << '\n';
+     }
+};
+
+void Test_CyclicVisitor()
+{
+    SomeVisitor2     someVisit;
+    MyCyclicVisitor  &baseVisit = someVisit;
+
+    RasterBitmap2   rast;
+    rast.Accept(baseVisit);
+    
+    Paragraph2      par;
+    par.Accept(baseVisit);
+
+    DocElement     &docElem1 = par;
+    docElem1.Accept(baseVisit);
+
+    DocElement     &docElem2 = rast;
+    docElem2.Accept(baseVisit);
+}
+
+int main()
+{
+    Test_Visitor();
+    Test_CyclicVisitor();
+}
+