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clang-uml/docs/test_cases/t20045.md
Bartek Kryza 35b66beeca Updated test cases documentation
2024-05-01 19:39:50 +02:00

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t20045 - Test case for template function call expressions with callables

Config

add_compile_flags:
  - -fparse-all-comments
diagrams:
  t20045_sequence:
    type: sequence
    glob:
      - t20045.cc
    include:
      namespaces:
        - clanguml::t20045
    using_namespace: clanguml::t20045
    from:
      - function: "clanguml::t20045::tmain()"

Source code

File tests/t20045/t20045.cc

namespace clanguml {
namespace t20045 {

template <typename F> int a1(F &&f) { return f(42); }

int a2(int x) { return 2; }

int a3(int x) { return 3; }

struct B {
    int b1(int x) { return x + 1; }
    int b2(int x) { return x + 2; }
};

class C {
public:
    explicit C(int x)
        : x_{x}
    {
    }

    int get_x() const { return x_; }

private:
    int x_;
};

int tmain()
{
    B b;

    // \uml{call clanguml::t20045::a2(int)}
    auto v1 = a1(a2);

    auto v2 = a1([](auto &&arg) { return a3(arg); });

    auto v3 = a1([&](auto &&arg) { return b.b1(arg); });

    auto v4 = a1([](auto &&arg) {
        C c(arg);
        return c.get_x();
    });

    return 0;
}
}
}

Generated PlantUML diagrams

t20045_sequence

Generated Mermaid diagrams

t20045_sequence

Generated JSON models

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}
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