Added support for try/catch statements in sequence diagrams

tests/t20023/.clang-uml

@@ -0,0 +1,14 @@
+compilation_database_dir: ..
+output_directory: puml
+diagrams:
+  t20023_sequence:
+    type: sequence
+    glob:
+      - ../../tests/t20023/t20023.cc
+    include:
+      namespaces:
+        - clanguml::t20023
+    using_namespace:
+      - clanguml::t20023
+    start_from:
+      - function: "clanguml::t20023::tmain()"

tests/t20023/t20023.cc

@@ -0,0 +1,40 @@
+#include <stdexcept>
+
+namespace clanguml {
+namespace t20023 {
+
+struct A {
+    int a1() { return 1; }
+    int a2() { return 2; }
+    int a3() { return 3; }
+    int a4() { return 3; }
+
+    int a()
+    {
+        try {
+            return a1();
+        }
+        catch (std::runtime_error &) {
+            return a2();
+        }
+        catch (std::logic_error &) {
+            return a3();
+        }
+        catch (...) {
+            return a4();
+        }
+    }
+};
+
+int tmain()
+{
+    A a;
+
+    int result{};
+
+    result = a.a();
+
+    return result;
+}
+}
+}

tests/t20023/test_case.h

@@ -0,0 +1,46 @@
+/**
+ * tests/t20023/test_case.h
+ *
+ * Copyright (c) 2021-2022 Bartek Kryza <bkryza@gmail.com>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+TEST_CASE("t20023", "[test-case][sequence]")
+{
+    auto [config, db] = load_config("t20023");
+
+    auto diagram = config.diagrams["t20023_sequence"];
+
+    REQUIRE(diagram->name == "t20023_sequence");
+
+    auto model = generate_sequence_diagram(*db, diagram);
+
+    REQUIRE(model->name() == "t20023_sequence");
+
+    auto puml = generate_sequence_puml(diagram, *model);
+    AliasMatcher _A(puml);
+
+    REQUIRE_THAT(puml, StartsWith("@startuml"));
+    REQUIRE_THAT(puml, EndsWith("@enduml\n"));
+
+    // Check if all calls exist
+    REQUIRE_THAT(puml, HasCall(_A("tmain()"), _A("A"), "a()"));
+    REQUIRE_THAT(puml, HasCall(_A("A"), _A("A"), "a1()"));
+    REQUIRE_THAT(puml, HasCall(_A("A"), _A("A"), "a2()"));
+    REQUIRE_THAT(puml, HasCall(_A("A"), _A("A"), "a3()"));
+    REQUIRE_THAT(puml, HasCall(_A("A"), _A("A"), "a4()"));
+
+    save_puml(
+        "./" + config.output_directory() + "/" + diagram->name + ".puml", puml);
+}

tests/test_cases.cc

@@ -269,6 +269,7 @@ using namespace clanguml::test::matchers;
 #include "t20020/test_case.h"
 #include "t20021/test_case.h"
 #include "t20022/test_case.h"
+#include "t20023/test_case.h"
 
 ///
 /// Package diagram tests

tests/test_cases.yaml

@@ -214,6 +214,9 @@ test_cases:
     - name: t20022
       title: Forward class declaration sequence diagram test case
       description:
+    - name: t20023
+      title: Try/catch statement sequence diagram test case
+      description:
   Package diagrams:
     - name: t30001
       title: Basic package diagram test case