t20053 - Test case for inlining nested lambda operator calls

Config

diagrams:
  t20053_sequence:
    type: sequence
    glob:
      - t20053.cc
    include:
      namespaces:
        - clanguml::t20053
    using_namespace: clanguml::t20053
    inline_lambda_messages: true
    generate_return_values: true
    from:
      - function: "clanguml::t20053::tmain()"

Source code

File tests/t20053/t20053.cc

namespace clanguml {
namespace t20053 {
 
template <typename F> int a1(F &&f) { return f(42); }
 
int a2(int x) { return 2; }
 
int a3(int x) { return 3; }
 
int a4(int x)
{
    return []() { return 5; }();
}
 
int tmain()
{
    // Call expression in a nested lambda
    auto v1 = [](auto &&arg1) {
        return [](auto &&arg2) { return a2(arg2); }(arg1);
    }(0);
 
    // Nested lambda call without any actual calls
    auto v2 = [](auto &&arg1) {
        return [](auto &&arg2) { return arg2 + 2; }(arg1);
    }(0);
 
    // Call expression in a nested lambda in call expression
    // TODO: Fix double call to a3()
    auto v4 = a1(
        [](auto &&arg1) { return [](auto &&arg2) { return a3(arg2); }(arg1); });
 
    // Call to function returning value evaluated from a lambda expression
    auto v5 = a4(5);
 
    return 0;
}
}
}

Generated PlantUML diagrams

Generated Mermaid diagrams

Generated JSON models

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      },
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    }
  ],
  "sequences": [
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}

Generated GraphML models