98 lines
1.6 KiB
Markdown
98 lines
1.6 KiB
Markdown
# t20012 - Lambda expression call sequence diagram test case
|
|
## Config
|
|
```yaml
|
|
compilation_database_dir: ..
|
|
output_directory: puml
|
|
diagrams:
|
|
t20012_sequence:
|
|
type: sequence
|
|
glob:
|
|
- ../../tests/t20012/t20012.cc
|
|
include:
|
|
namespaces:
|
|
- clanguml::t20012
|
|
using_namespace:
|
|
- clanguml::t20012
|
|
start_from:
|
|
- function: "clanguml::t20012::tmain()"
|
|
```
|
|
## Source code
|
|
File t20012.cc
|
|
```cpp
|
|
#include <functional>
|
|
#include <utility>
|
|
|
|
namespace clanguml {
|
|
namespace t20012 {
|
|
struct A {
|
|
void a() { aa(); }
|
|
|
|
void aa() { aaa(); }
|
|
|
|
void aaa() { }
|
|
};
|
|
|
|
struct B {
|
|
void b() { bb(); }
|
|
|
|
void bb() { bbb(); }
|
|
|
|
void bbb() { }
|
|
};
|
|
|
|
struct C {
|
|
void c() { cc(); }
|
|
|
|
void cc() { ccc(); }
|
|
|
|
void ccc() { }
|
|
};
|
|
|
|
template <typename F> struct R {
|
|
R(F &&f)
|
|
: f_{std::move(f)}
|
|
{
|
|
}
|
|
|
|
void r() { f_(); }
|
|
|
|
F f_;
|
|
};
|
|
|
|
void tmain()
|
|
{
|
|
A a;
|
|
B b;
|
|
C c;
|
|
|
|
// The activity shouldn't be marked at the lambda definition, but
|
|
// wherever it is actually called...
|
|
auto alambda = [&a, &b]() {
|
|
a.a();
|
|
b.b();
|
|
};
|
|
|
|
// ...like here
|
|
alambda();
|
|
|
|
// There should be no call to B in the sequence diagram as the blambda
|
|
// is never called
|
|
[[maybe_unused]] auto blambda = [&b]() { b.b(); };
|
|
|
|
// Nested lambdas should also work
|
|
auto clambda = [alambda, &c]() {
|
|
c.c();
|
|
alambda();
|
|
};
|
|
clambda();
|
|
|
|
R r{[&c]() { c.c(); }};
|
|
|
|
r.r();
|
|
}
|
|
}
|
|
}
|
|
```
|
|
## Generated UML diagrams
|
|
|