0.5.4
C++ to UML diagram generator based on Clang
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t20012 - Lambda expression call sequence diagram test case

Config

diagrams:
t20012_sequence:
type: sequence
glob:
- t20012.cc
include:
namespaces:
- clanguml::t20012
using_namespace: clanguml::t20012
from:
- function: "clanguml::t20012::tmain()"

Source code

File tests/t20012/t20012.cc

#include <algorithm>
#include <functional>
#include <memory>
#include <optional>
#include <utility>
#include <vector>
namespace clanguml {
namespace t20012 {
struct A {
void a() { aa(); }
void aa() { aaa(); }
void aaa() { }
};
struct B {
void b() { bb(); }
void bb() { bbb(); }
void bbb() { }
void eb() { }
};
struct C {
void c() { cc(); }
void cc() { ccc(); }
void ccc() { }
};
struct D {
int add5(int arg) const { return arg + 5; }
};
class E {
std::optional<std::shared_ptr<B>> maybe_b;
std::shared_ptr<A> a;
public:
template <typename F> void setup(F &&f) { f(maybe_b); }
};
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();
D d;
std::vector<int> ints{0, 1, 2, 3, 4};
std::transform(ints.begin(), ints.end(), ints.begin(),
[&d](auto i) { return d.add5(i); });
// TODO: Fix naming function call arguments which are lambdas
// E e;
//
// e.setup([](auto &&arg) mutable {
// // We cannot know here what 'arg' might be
// arg.value()->eb();
// });
}
}
}

Generated PlantUML diagrams

Generated Mermaid diagrams

Generated JSON models

{
"diagram_type": "sequence",
"name": "t20012_sequence",
"participants": [
{
"display_name": "tmain()",
"full_name": "clanguml::t20012::tmain()",
"id": "7149594226225006621",
"name": "tmain",
"namespace": "clanguml::t20012",
"source_location": {
"column": 6,
"file": "t20012.cc",
"line": 59,
"translation_unit": "t20012.cc"
},
"type": "function"
},
{
"activities": [
{
"display_name": "operator()() const",
"full_name": "clanguml::t20012::tmain()::(lambda t20012.cc:67:20)::operator()() const",
"id": "6759540437739180205",
"name": "operator()",
"namespace": "clanguml::t20012::tmain()",
"type": "method"
}
],
"display_name": "tmain()::(lambda t20012.cc:67:20)",
"full_name": "clanguml::t20012::tmain()::(lambda t20012.cc:67:20)",
"id": "14585017180007157378",
"name": "tmain()::(lambda t20012.cc:67:20)",
"namespace": "clanguml::t20012",
"source_location": {
"column": 20,
"file": "t20012.cc",
"line": 67,
"translation_unit": "t20012.cc"
},
"type": "lambda"
},
{
"activities": [
{
"display_name": "a()",
"full_name": "clanguml::t20012::A::a()",
"id": "14971463461955991809",
"name": "a",
"namespace": "clanguml::t20012",
"source_location": {
"column": 10,
"file": "t20012.cc",
"line": 11,
"translation_unit": "t20012.cc"
},
"type": "method"
},
{
"display_name": "aa()",
"full_name": "clanguml::t20012::A::aa()",
"id": "8807464314831012313",
"name": "aa",
"namespace": "clanguml::t20012",
"source_location": {
"column": 10,
"file": "t20012.cc",
"line": 13,
"translation_unit": "t20012.cc"
},
"type": "method"
},
{
"display_name": "aaa()",
"full_name": "clanguml::t20012::A::aaa()",
"id": "7533089486589535184",
"name": "aaa",
"namespace": "clanguml::t20012",
"source_location": {
"column": 10,
"file": "t20012.cc",
"line": 15,
"translation_unit": "t20012.cc"
},
"type": "method"
}
],
"display_name": "A",
"full_name": "clanguml::t20012::A",
"id": "14385473809029856958",
"name": "A",
"namespace": "clanguml::t20012",
"source_location": {
"column": 8,
"file": "t20012.cc",
"line": 10,
"translation_unit": "t20012.cc"
},
"type": "class"
},
{
"activities": [
{
"display_name": "b()",
"full_name": "clanguml::t20012::B::b()",
"id": "17141579283082165068",
"name": "b",
"namespace": "clanguml::t20012",
"source_location": {
"column": 10,
"file": "t20012.cc",
"line": 19,
"translation_unit": "t20012.cc"
},
"type": "method"
},
{
"display_name": "bb()",
"full_name": "clanguml::t20012::B::bb()",
"id": "7789746726279450510",
"name": "bb",
"namespace": "clanguml::t20012",
"source_location": {
"column": 10,
"file": "t20012.cc",
"line": 21,
"translation_unit": "t20012.cc"
},
"type": "method"
},
{
"display_name": "bbb()",
"full_name": "clanguml::t20012::B::bbb()",
"id": "1566308232035027228",
"name": "bbb",
"namespace": "clanguml::t20012",
"source_location": {
"column": 10,
"file": "t20012.cc",
"line": 23,
"translation_unit": "t20012.cc"
},
"type": "method"
}
],
"display_name": "B",
"full_name": "clanguml::t20012::B",
"id": "15147759194081621226",
"name": "B",
"namespace": "clanguml::t20012",
"source_location": {
"column": 8,
"file": "t20012.cc",
"line": 18,
"translation_unit": "t20012.cc"
},
"type": "class"
},
{
"activities": [
{
"display_name": "operator()() const",
"full_name": "clanguml::t20012::tmain()::(lambda t20012.cc:80:20)::operator()() const",
"id": "16646942837642819925",
"name": "operator()",
"namespace": "clanguml::t20012::tmain()",
"type": "method"
}
],
"display_name": "tmain()::(lambda t20012.cc:80:20)",
"full_name": "clanguml::t20012::tmain()::(lambda t20012.cc:80:20)",
"id": "16826656833296169492",
"name": "tmain()::(lambda t20012.cc:80:20)",
"namespace": "clanguml::t20012",
"source_location": {
"column": 20,
"file": "t20012.cc",
"line": 80,
"translation_unit": "t20012.cc"
},
"type": "lambda"
},
{
"activities": [
{
"display_name": "c()",
"full_name": "clanguml::t20012::C::c()",
"id": "5402955322545804857",
"name": "c",
"namespace": "clanguml::t20012",
"source_location": {
"column": 10,
"file": "t20012.cc",
"line": 29,
"translation_unit": "t20012.cc"
},
"type": "method"
},
{
"display_name": "cc()",
"full_name": "clanguml::t20012::C::cc()",
"id": "11614573634522688457",
"name": "cc",
"namespace": "clanguml::t20012",
"source_location": {
"column": 10,
"file": "t20012.cc",
"line": 31,
"translation_unit": "t20012.cc"
},
"type": "method"
},
{
"display_name": "ccc()",
"full_name": "clanguml::t20012::C::ccc()",
"id": "15649131270396803681",
"name": "ccc",
"namespace": "clanguml::t20012",
"source_location": {
"column": 10,
"file": "t20012.cc",
"line": 33,
"translation_unit": "t20012.cc"
},
"type": "method"
}
],
"display_name": "C",
"full_name": "clanguml::t20012::C",
"id": "16575664974290882098",
"name": "C",
"namespace": "clanguml::t20012",
"source_location": {
"column": 8,
"file": "t20012.cc",
"line": 28,
"translation_unit": "t20012.cc"
},
"type": "class"
},
{
"activities": [
{
"display_name": "R((lambda at t20012.cc:86:9) &&)",
"full_name": "clanguml::t20012::R<(lambda at t20012.cc:86:9)>::R((lambda at t20012.cc:86:9) &&)",
"id": "15809459607902663419",
"name": "R",
"namespace": "clanguml::t20012",
"source_location": {
"column": 5,
"file": "t20012.cc",
"line": 49,
"translation_unit": "t20012.cc"
},
"type": "method"
},
{
"display_name": "r()",
"full_name": "clanguml::t20012::R<(lambda at t20012.cc:86:9)>::r()",
"id": "13023711539577727870",
"name": "r",
"namespace": "clanguml::t20012",
"source_location": {
"column": 10,
"file": "t20012.cc",
"line": 54,
"translation_unit": "t20012.cc"
},
"type": "method"
}
],
"display_name": "R<(lambda at t20012.cc:86:9)>",
"full_name": "clanguml::t20012::R<(lambda at t20012.cc:86:9)>",
"id": "11351025277027321892",
"name": "R",
"namespace": "clanguml::t20012",
"source_location": {
"column": 30,
"file": "t20012.cc",
"line": 48,
"translation_unit": "t20012.cc"
},
"type": "class"
},
{
"activities": [
{
"display_name": "operator()() const",
"full_name": "clanguml::t20012::tmain()::(lambda t20012.cc:86:9)::operator()() const",
"id": "7980939503032938975",
"name": "operator()",
"namespace": "clanguml::t20012::tmain()",
"type": "method"
}
],
"display_name": "tmain()::(lambda t20012.cc:86:9)",
"full_name": "clanguml::t20012::tmain()::(lambda t20012.cc:86:9)",
"id": "12185837463070188914",
"name": "tmain()::(lambda t20012.cc:86:9)",
"namespace": "clanguml::t20012",
"source_location": {
"column": 9,
"file": "t20012.cc",
"line": 86,
"translation_unit": "t20012.cc"
},
"type": "lambda"
},
{
"activities": [
{
"display_name": "operator()(auto) const",
"full_name": "clanguml::t20012::tmain()::(lambda t20012.cc:94:9)::operator()(auto) const",
"id": "13006452698713945708",
"name": "operator()",
"namespace": "clanguml::t20012::tmain()",
"type": "method"
}
],
"display_name": "tmain()::(lambda t20012.cc:94:9)",
"full_name": "clanguml::t20012::tmain()::(lambda t20012.cc:94:9)",
"id": "12685488174106388182",
"name": "tmain()::(lambda t20012.cc:94:9)",
"namespace": "clanguml::t20012",
"source_location": {
"column": 9,
"file": "t20012.cc",
"line": 94,
"translation_unit": "t20012.cc"
},
"type": "lambda"
},
{
"activities": [
{
"display_name": "add5(int) const",
"full_name": "clanguml::t20012::D::add5(int) const",
"id": "3032548472559015070",
"name": "add5",
"namespace": "clanguml::t20012",
"source_location": {
"column": 9,
"file": "t20012.cc",
"line": 37,
"translation_unit": "t20012.cc"
},
"type": "method"
}
],
"display_name": "D",
"full_name": "clanguml::t20012::D",
"id": "13017810609178989903",
"name": "D",
"namespace": "clanguml::t20012",
"source_location": {
"column": 8,
"file": "t20012.cc",
"line": 36,
"translation_unit": "t20012.cc"
},
"type": "class"
}
],
"sequences": [
{
"messages": [
{
"from": {
"activity_id": "7149594226225006621",
"participant_id": "7149594226225006621"
},
"name": "operator()() const",
"return_type": "void",
"scope": "normal",
"source_location": {
"column": 5,
"file": "t20012.cc",
"line": 73,
"translation_unit": "t20012.cc"
},
"to": {
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"participant_id": "14585017180007157378"
},
"type": "message"
},
{
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},
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"scope": "normal",
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"column": 9,
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},
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},
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},
{
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},
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"file": "t20012.cc",
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},
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{
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},
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{
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{
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{
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{
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{
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"name": "aaa()",
"return_type": "void",
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{
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"name": "b()",
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},
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{
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"file": "t20012.cc",
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},
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{
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{
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"name": "r()",
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