75 lines
1.4 KiB
Markdown
75 lines
1.4 KiB
Markdown
# t00021 - Visitor pattern
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## Config
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```yaml
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compilation_database_dir: ..
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output_directory: puml
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diagrams:
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t00021_class:
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type: class
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glob:
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- ../../tests/t00021/t00021.cc
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using_namespace:
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- clanguml::t00021
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include:
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namespaces:
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- clanguml::t00021
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```
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## Source code
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File t00021.cc
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```cpp
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#include <memory>
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namespace clanguml {
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namespace t00021 {
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class A;
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class B;
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class Visitor {
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public:
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virtual ~Visitor() = default;
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virtual void visit_A(const A &item) const = 0;
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virtual void visit_B(const B &item) const = 0;
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};
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class Visitor1 : public Visitor {
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public:
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void visit_A(const A &item) const override { }
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void visit_B(const B &item) const override { }
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};
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class Visitor2 : public Visitor {
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public:
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void visit_A(const A &item) const override { }
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void visit_B(const B &item) const override { }
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};
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class Visitor3 : public Visitor {
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public:
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void visit_A(const A &item) const override { }
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void visit_B(const B &item) const override { }
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};
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class Item {
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public:
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virtual ~Item() = default;
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virtual void accept(const Visitor &visitor) const = 0;
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};
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class A : public Item {
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public:
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void accept(const Visitor &visitor) const override { }
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};
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class B : public Item {
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public:
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void accept(const Visitor &visitor) const override { }
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};
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} // namespace t00021
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} // namespace clanguml
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```
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## Generated UML diagrams
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