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clang-uml/docs/test_cases/t20006.md
2022-11-30 21:32:37 +01:00

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# t20006 - Class template specialization basic sequence diagram
## Config
```yaml
compilation_database_dir: ..
output_directory: puml
diagrams:
t20006_sequence:
type: sequence
glob:
- ../../tests/t20006/t20006.cc
include:
namespaces:
- clanguml::t20006
using_namespace:
- clanguml::t20006
start_from:
- function: "clanguml::t20006::tmain()"
```
## Source code
File t20006.cc
```cpp
#include <string>
namespace clanguml {
namespace t20006 {
template <typename T> struct A {
T a1(T arg) { return arg; }
T a2(T arg) { return arg + arg; }
};
template <typename T> struct B {
T b(T arg) { return a_.a1(arg); }
A<T> a_;
};
template <> struct B<std::string> {
std::string b(std::string arg) { return a_.a2(arg); }
A<std::string> a_;
};
template <typename T> struct AA {
void aa1(T t) { }
void aa2(T t) { }
};
template <typename T, typename F> struct BB {
void bb1(T t, F f) { aa_.aa1(t); }
void bb2(T t, F f) { aa_.aa2(t); }
AA<T> aa_;
};
template <typename T> struct BB<T, std::string> {
void bb1(T t, std::string f) { aa_->aa2(t); }
void bb2(T t, std::string f) { aa_->aa1(t); }
BB<T, std::string>(AA<T> *aa)
: aa_{aa}
{
}
AA<T> *aa_;
};
template <typename T> struct BB<T, float> {
void bb1(T t, float f) { bb2(t, f); }
void bb2(T t, float f) { aa_.aa2(t); }
BB<T, float>(AA<T> &aa)
: aa_{aa}
{
}
AA<T> &aa_;
};
void tmain()
{
B<int> bint;
B<std::string> bstring;
bint.b(1);
bstring.b("bstring");
BB<int, int> bbint;
AA<int> aaint;
BB<int, std::string> bbstring{&aaint};
BB<int, float> bbfloat{aaint};
bbint.bb1(1, 1);
bbint.bb2(2, 2);
bbstring.bb1(1, "calling aa2");
bbstring.bb2(1, "calling aa1");
bbfloat.bb1(1, 1.0f);
}
}
}
```
## Generated UML diagrams
![t20006_sequence](./t20006_sequence.svg "Class template specialization basic sequence diagram")