# t20021 - Loop statements sequence diagram test case
## Config
```yaml
compilation_database_dir: ..
output_directory: puml
diagrams:
  t20021_sequence:
    type: sequence
    glob:
      - ../../tests/t20021/t20021.cc
    include:
      namespaces:
        - clanguml::t20021
    using_namespace:
      - clanguml::t20021
    start_from:
      - function: "clanguml::t20021::tmain()"
```
## Source code
File t20021.cc
```cpp
#include <vector>

namespace clanguml {
namespace t20021 {
struct A {
    int a1() { return 0; }
    int a2() { return 1; }
    int a3() { return 2; }
};

struct B {
    void log() { }

    int b1() const { return 3; }
    int b2() const { return 4; }
};

struct C {
    int c1() { return 1; }
    int c2() { return 2; }
    int c3() { return 3; }
    int c4() { return c5(); }
    int c5() { return 5; }

    std::vector<int> &contents() { return contents_; }

    std::vector<int> contents_;
};

int tmain()
{
    A a;
    std::vector<B> b;
    C c;

    int i = 10;
    while (i -= c.c4()) {
        int j = a.a3();
        do {
            for (int l = a.a2(); l > c.c1(); l -= c.c2())
                a.a1();
        } while (j -= c.c3());
    }

    int result = 0;
    for (const auto &bi : b) {
        result += bi.b2();
    }

    for (const auto &ci : c.contents()) {
        result += ci;
    }

    return b.front().b2() + result;
}
}
}
```
## Generated UML diagrams
![t20021_sequence](./t20021_sequence.svg "Loop statements sequence diagram test case")
## Generated JSON models
```json
{
  "diagram_type": "sequence",
  "metadata": {
    "clang_uml_version": "0.3.5-2-g7e9944c",
    "llvm_version": "Ubuntu clang version 15.0.6",
    "schema_version": 1
  },
  "name": "t20021_sequence",
  "participants": [
    {
      "id": "1682631020380557915",
      "name": "clanguml::t20021::tmain()",
      "source_location": {
        "file": "../../tests/t20021/t20021.cc",
        "line": 30
      },
      "type": "function"
    },
    {
      "id": "451128000259357438",
      "name": "clanguml::t20021::C",
      "source_location": {
        "file": "../../tests/t20021/t20021.cc",
        "line": 18
      },
      "type": "class"
    },
    {
      "id": "1280483607329510730",
      "name": "clanguml::t20021::A",
      "source_location": {
        "file": "../../tests/t20021/t20021.cc",
        "line": 5
      },
      "type": "class"
    },
    {
      "id": "1849696080443395393",
      "name": "clanguml::t20021::B",
      "source_location": {
        "file": "../../tests/t20021/t20021.cc",
        "line": 11
      },
      "type": "class"
    }
  ],
  "sequences": [
    {
      "messages": [
        {
          "activity_id": "1682631020380557915",
          "messages": [
            {
              "from": {
                "activity_id": "1682631020380557915",
                "activity_name": "clanguml::t20021::tmain()",
                "participant_id": "1682631020380557915",
                "participant_name": "clanguml::t20021::tmain()"
              },
              "name": "c4()",
              "return_type": "int",
              "scope": "condition",
              "source_location": {
                "file": "../../tests/t20021/t20021.cc",
                "line": 37
              },
              "to": {
                "activity_id": "124927877622321176",
                "activity_name": "clanguml::t20021::C::c4()",
                "participant_id": "451128000259357438"
              },
              "type": "message"
            },
            {
              "from": {
                "activity_id": "124927877622321176",
                "activity_name": "clanguml::t20021::C::c4()",
                "participant_id": "451128000259357438"
              },
              "name": "c5()",
              "return_type": "int",
              "scope": "normal",
              "source_location": {
                "file": "../../tests/t20021/t20021.cc",
                "line": 22
              },
              "to": {
                "activity_id": "1325720714179808628",
                "activity_name": "clanguml::t20021::C::c5()",
                "participant_id": "451128000259357438"
              },
              "type": "message"
            },
            {
              "from": {
                "activity_id": "1682631020380557915",
                "activity_name": "clanguml::t20021::tmain()",
                "participant_id": "1682631020380557915",
                "participant_name": "clanguml::t20021::tmain()"
              },
              "name": "a3()",
              "return_type": "int",
              "scope": "normal",
              "source_location": {
                "file": "../../tests/t20021/t20021.cc",
                "line": 38
              },
              "to": {
                "activity_id": "1867955233624891190",
                "activity_name": "clanguml::t20021::A::a3()",
                "participant_id": "1280483607329510730"
              },
              "type": "message"
            },
            {
              "activity_id": "1682631020380557915",
              "messages": [
                {
                  "activity_id": "1682631020380557915",
                  "messages": [
                    {
                      "from": {
                        "activity_id": "1682631020380557915",
                        "activity_name": "clanguml::t20021::tmain()",
                        "participant_id": "1682631020380557915",
                        "participant_name": "clanguml::t20021::tmain()"
                      },
                      "name": "a2()",
                      "return_type": "int",
                      "scope": "condition",
                      "source_location": {
                        "file": "../../tests/t20021/t20021.cc",
                        "line": 40
                      },
                      "to": {
                        "activity_id": "1139294797758415018",
                        "activity_name": "clanguml::t20021::A::a2()",
                        "participant_id": "1280483607329510730"
                      },
                      "type": "message"
                    },
                    {
                      "from": {
                        "activity_id": "1682631020380557915",
                        "activity_name": "clanguml::t20021::tmain()",
                        "participant_id": "1682631020380557915",
                        "participant_name": "clanguml::t20021::tmain()"
                      },
                      "name": "c1()",
                      "return_type": "int",
                      "scope": "condition",
                      "source_location": {
                        "file": "../../tests/t20021/t20021.cc",
                        "line": 40
                      },
                      "to": {
                        "activity_id": "2143764740072323303",
                        "activity_name": "clanguml::t20021::C::c1()",
                        "participant_id": "451128000259357438"
                      },
                      "type": "message"
                    },
                    {
                      "from": {
                        "activity_id": "1682631020380557915",
                        "activity_name": "clanguml::t20021::tmain()",
                        "participant_id": "1682631020380557915",
                        "participant_name": "clanguml::t20021::tmain()"
                      },
                      "name": "c2()",
                      "return_type": "int",
                      "scope": "condition",
                      "source_location": {
                        "file": "../../tests/t20021/t20021.cc",
                        "line": 40
                      },
                      "to": {
                        "activity_id": "1707693479408501017",
                        "activity_name": "clanguml::t20021::C::c2()",
                        "participant_id": "451128000259357438"
                      },
                      "type": "message"
                    },
                    {
                      "from": {
                        "activity_id": "1682631020380557915",
                        "activity_name": "clanguml::t20021::tmain()",
                        "participant_id": "1682631020380557915",
                        "participant_name": "clanguml::t20021::tmain()"
                      },
                      "name": "a1()",
                      "return_type": "int",
                      "scope": "normal",
                      "source_location": {
                        "file": "../../tests/t20021/t20021.cc",
                        "line": 41
                      },
                      "to": {
                        "activity_id": "1659488549696810992",
                        "activity_name": "clanguml::t20021::A::a1()",
                        "participant_id": "1280483607329510730"
                      },
                      "type": "message"
                    }
                  ],
                  "name": "for",
                  "type": "loop"
                },
                {
                  "from": {
                    "activity_id": "1682631020380557915",
                    "activity_name": "clanguml::t20021::tmain()",
                    "participant_id": "1682631020380557915",
                    "participant_name": "clanguml::t20021::tmain()"
                  },
                  "name": "c3()",
                  "return_type": "int",
                  "scope": "condition",
                  "source_location": {
                    "file": "../../tests/t20021/t20021.cc",
                    "line": 42
                  },
                  "to": {
                    "activity_id": "1302892753246800390",
                    "activity_name": "clanguml::t20021::C::c3()",
                    "participant_id": "451128000259357438"
                  },
                  "type": "message"
                }
              ],
              "name": "do",
              "type": "loop"
            }
          ],
          "name": "while",
          "type": "loop"
        },
        {
          "activity_id": "1682631020380557915",
          "messages": [
            {
              "from": {
                "activity_id": "1682631020380557915",
                "activity_name": "clanguml::t20021::tmain()",
                "participant_id": "1682631020380557915",
                "participant_name": "clanguml::t20021::tmain()"
              },
              "name": "b2()",
              "return_type": "int",
              "scope": "normal",
              "source_location": {
                "file": "../../tests/t20021/t20021.cc",
                "line": 47
              },
              "to": {
                "activity_id": "1387752719733375782",
                "activity_name": "clanguml::t20021::B::b2()",
                "participant_id": "1849696080443395393"
              },
              "type": "message"
            }
          ],
          "name": "for",
          "type": "loop"
        },
        {
          "activity_id": "1682631020380557915",
          "messages": [
            {
              "from": {
                "activity_id": "1682631020380557915",
                "activity_name": "clanguml::t20021::tmain()",
                "participant_id": "1682631020380557915",
                "participant_name": "clanguml::t20021::tmain()"
              },
              "name": "contents()",
              "return_type": "std::vector<int> &",
              "scope": "condition",
              "source_location": {
                "file": "../../tests/t20021/t20021.cc",
                "line": 50
              },
              "to": {
                "activity_id": "814405216385697964",
                "activity_name": "clanguml::t20021::C::contents()",
                "participant_id": "451128000259357438"
              },
              "type": "message"
            }
          ],
          "name": "for",
          "type": "loop"
        },
        {
          "from": {
            "activity_id": "1682631020380557915",
            "activity_name": "clanguml::t20021::tmain()",
            "participant_id": "1682631020380557915",
            "participant_name": "clanguml::t20021::tmain()"
          },
          "name": "b2()",
          "return_type": "int",
          "scope": "normal",
          "source_location": {
            "file": "../../tests/t20021/t20021.cc",
            "line": 54
          },
          "to": {
            "activity_id": "1387752719733375782",
            "activity_name": "clanguml::t20021::B::b2()",
            "participant_id": "1849696080443395393"
          },
          "type": "message"
        }
      ],
      "start_from": {
        "id": 1682631020380557915,
        "location": "clanguml::t20021::tmain()"
      }
    }
  ],
  "using_namespace": "clanguml::t20021"
}
```