You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: mod.rs
    path of file: ./repos/cxx-qt/crates/cxx-qt-gen/src/generator/cpp/property
    
    the code of the file until where you have to start completion: // SPDX-FileCopyrightText: 2022 Klar√§lvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
// SPDX-FileContributor: Andrew Hayzen <andrew.hayzen@kdab.com>
//
// SPDX-License-Identifier: MIT OR Apache-2.0

use crate::generator::{
    cpp::{qobject::GeneratedCppQObjectBlocks, signal::generate_cpp_signals},
    naming::{property::QPropertyName, qobject::QObjectName},
};
use crate::{
    naming::cpp::syn_type_to_cpp_type, naming::TypeNames, parser::property::ParsedQProperty,
};
use syn::Result;

mod getter;
mod meta;
mod setter;
mod signal;

pub fn generate_cpp_properties(
    properties: &Vec<ParsedQProperty>,
    qobject_idents: &QObjectName,
    type_names: &TypeNames,
) -> Result<GeneratedCppQObjectBlocks> {
    let mut generated = GeneratedCppQObjectBlocks::default();
    let mut signals = vec![];
    let qobject_ident = qobject_idents.cpp_class.cpp.to_string();

    for property in properties {
        // Cache the idents as they are used in multiple places
        let idents = QPropertyName::from(property);
        let cxx_ty = syn_type_to_cpp_type(&property.ty, type_names)?;

        generated.metaobjects.push(meta::generate(&idents, &cxx_ty));
        generated
            .methods
            .push(getter::generate(&idents, &qobject_ident, &cxx_ty));
        generated
            .private_methods
            .push(getter::generate_wrapper(&idents, &cxx_ty));
        generated
            .methods
            .push(setter::generate(&idents, &qobject_ident, &cxx_ty));
        generated
            .private_methods
            .push(setter::generate_wrapper(&idents, &cxx_ty));
        signals.push(signal::generate(&idents, qobject_idents));
    }

    generated.append(&mut generate_cpp_signals(
        &signals,
        qobject_idents,
        type_names,
    )?);

    Ok(generated)
}

#[cfg(test)]
mod tests {
    use super::*;

    use crate::generator::naming::qobject::tests::create_qobjectname;
    use crate::CppFragment;
    use indoc::indoc;
    use pretty_assertions::assert_str_eq;
    use quote::format_ident;
    use syn::parse_quote;

    #[test]
    fn test_generate_cpp_properties() {
        let properties = vec![
            ParsedQProperty {
                ident: format_ident!("trivial_property"),
                ty: parse_quote! { i32 },
            },
            ParsedQProperty {
                ident: format_ident!("opaque_property"),
                ty: parse_quote! { UniquePtr<QColor> },
            },
        ];
        let qobject_idents = create_qobjectname();

        let generated =
            generate_cpp_properties(&properties, &qobject_idents, &TypeNames::default()).unwrap();

        // metaobjects
        assert_eq!(generated.metaobjects.len(), 2);
        assert_str_eq!(generated.metaobjects[0], "Q_PROPERTY(::std::int32_t trivialProperty READ getTrivialProperty WRITE setTrivialProperty NOTIFY trivialPropertyChanged)");
        assert_str_eq!(generated.metaobjects[1], "Q_PROPERTY(::std::unique_ptr<QColor> opaqueProperty READ getOpaqueProperty WRITE setOpaqueProperty NOTIFY opaquePropertyChanged)");

        // methods
        assert_eq!(generated.methods.len(), 6);
        let (header, source) = if let CppFragment::Pair { header, source } = &generated.methods[0] {
            (header, source)
        } else {
            panic!("Expected pair!")
        };
        assert_str_eq!(header, "::std::int32_t const& getTrivialProperty() const;");
        assert_str_eq!(
            source,
            indoc! {r#"
            ::std::int32_t const&
            MyObject::getTrivialProperty() const
            {
                const ::rust::cxxqt1::MaybeLockGuard<MyObject> guard(*this);
                return getTrivialPropertyWrapper();
            }
            "#}
        );

        let (header, source) = if let CppFragment::Pair { header, source } = &generated.methods[1] {
            (header, source)
        } else {
            panic!("Expected pair!")
        };
        assert_str_eq!(
            header,
            "Q_SLOT void setTrivialProperty(::std::int32_t const& value);"
        );
        assert_str_eq!(
            source,
            indoc! {r#"
                void
                MyObject::setTrivialProperty(::std::int32_t const& value)
                {
                    const ::rust::cxxqt1::MaybeLockGuard<MyObject> guard(*this);
                    setTrivialPropertyWrapper(value);
                }
                "#}
        );

        let (header, source) = if let CppFragment::Pair { header, source } = &generated.methods[2] {
    
    
    fn test_generate_cpp_properties_mapped_cxx_name() {
        let properties = vec![ParsedQProperty {
            ident: format_ident!("mapped_property"),
            ty: parse_quote! { A1 },
        }];
        let qobject_idents = create_qobjectname();

        let mut type_names = TypeNames::default();
        type_names.insert("A", None, Some("A1"), None);

        let generated = generate_cpp_properties(&properties, &qobject_idents, &type_names).unwrap();

        // metaobjects
        assert_eq!(generated.metaobjects.len(), 1);
        assert_str_eq!(generated.metaobjects[0], "Q_PROPERTY(A1 mappedProperty READ getMappedProperty WRITE setMappedProperty NOTIFY mappedPropertyChanged)");

        // methods
        assert_eq!(generated.methods.len(), 3);
        let (header, source) = if let CppFragment::Pair { header, source } = &generated.methods[0] {
            (header, source)
        } else {
            panic!("Expected pair!")
        };
        assert_str_eq!(header, "A1 const& getMappedProperty() const;");
        assert_str_eq!(
            source,
            indoc! {r#"
            A1 const&
            MyObject::getMappedProperty() const
            {
                const ::rust::cxxqt1::MaybeLockGuard<MyObject> guard(*this);
                return getMappedPropertyWrapper();
            }
            "#}
        );

        let (header, source) = if let CppFragment::Pair { header, source } = &generated.methods[1] {
            (header, source)
        } else {
            panic!("Expected pair!")
        };
        assert_str_eq!(header, "Q_SLOT void setMappedProperty(A1 const& value);");
        assert_str_eq!(
            source,
            indoc! {r#"
                void
                MyObject::setMappedProperty(A1 const& value)
                {
                    const ::rust::cxxqt1::MaybeLockGuard<MyObject> guard(*this);
                    setMappedPropertyWrapper(value);
                }
                "#}
        );
        let header = if let CppFragment::Header(header) = &generated.methods[2] {
            header
        } else {
            panic!("Expected header!")
        };
        assert_str_eq!(header, "Q_SIGNAL void mappedPropertyChanged();");

        assert_eq!(generated.fragments.len(), 1);
        let (header, source) = if let CppFragment::Pair { header, source } = &generated.fragments[0]
        {
            (header, source)
        } else {
            panic!("Expected Pair")
        };
        assert_str_eq!(
            header,
            indoc! {r#"
            namespace rust::cxxqtgen1 {
            ::QMetaObject::Connection
            MyObject_mappedPropertyChangedConnect(MyObject& self, ::rust::cxxqtgen1::MyObjectCxxQtSignalHandlermappedPropertyChanged closure, ::Qt::ConnectionType type);
            } // namespace rust::cxxqtgen1
            "#}
        );
        assert_str_eq!(
            source,
            indoc! {r#"
            // Define namespace otherwise we hit a GCC bug
            // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56480
            namespace rust::cxxqt1 {
            template <>
            SignalHandler<::rust::cxxqtgen1::MyObjectCxxQtSignalParamsmappedPropertyChanged *>::~SignalHandler() noexcept
            {
                if (data[0] == nullptr && data[1] == nullptr)
                {
                    return;
                }

                drop_MyObject_signal_handler_mappedPropertyChanged(::std::move(*this));
            }

            template <>
            template <>
            void SignalHandler<::rust::cxxqtgen1::MyObjectCxxQtSignalParamsmappedPropertyChanged *>::operator()<MyObject&>(MyObject& self)
            {
                call_MyObject_signal_handler_mappedPropertyChanged(*this, self);
            }

            static_assert(alignof(SignalHandler<::rust::cxxqtgen1::MyObjectCxxQtSignalParamsmappedPropertyChanged *>) <= alignof(::std::size_t), "unexpected aligment");
            static_assert(sizeof(SignalHandler<::rust::cxxqtgen1::MyObjectCxxQtSignalParamsmappedPropertyChanged *>) == sizeof(::std::size_t[2]), "unexpected size");
            } // namespace rust::cxxqt1

            namespace rust::cxxqtgen1 {
            ::QMetaObject::Connection
            MyObject_mappedPropertyChangedConnect(MyObject& self, ::rust::cxxqtgen1::MyObjectCxxQtSignalHandlermappedPropertyChanged closure, ::Qt::ConnectionType type)
            {
                return ::QObject::connect(
                    &self,
                    &MyObject::mappedPropertyChanged,
                    &self,
                    [&, closure = ::std::move(closure)]() mutable {
                        const ::rust::cxxqt1::MaybeLockGuard<MyObject> guard(self);
                        closure.template operator()<MyObject&>(self);
                    },
                    type);
            }
            } // namespace rust::cxxqtgen1
            "#}
        );

        // private methods
        assert_eq!(generated.private_methods.len(), 2);
        let header = if let CppFragment::Header(header) = &generated.private_methods[0] {
            header
        } else {
            panic!("Expected header")
        };
        assert_str_eq!(
            header,
            "A1 const& getMappedPropertyWrapper() const noexcept;"
        );

        let header = if let CppFragment::Header(header) = &generated.private_methods[1] {
            header
        } else {
            panic!("Expected header")
        };
        assert_str_eq!(header, "void setMappedPropertyWrapper(A1 value) noexcept;");
    }