Assembly.hh

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#pragma once
#ifndef DLG4_ASSEMBLY_HPP
#define DLG4_ASSEMBLY_HPP
//
// Created by Douglas S. Leonard on 6/8/25.  All rights Reserved
// See related files for license, if any is provided.
//
// Assemblies for treating a collection of builders as a single unit.
//#include "StructureBuilder.hh"
#include "Linkable.hh"
#include "i_shared_ptr.hh"
#include <stdexcept>
#include <VolumeBuilder.hh>
#include <VolumeBuilderTypes.hh>
#include <StructureBuilder.hh>
 
namespace DLG4::VolumeBuilders {
    template <typename T>
    class VolumeBuilder;
    //    class StructureBuilder;
 
    AssemblyPtr CreateAssembly(G4String name);
 
    class Assembly final: public StructureBuilder<Assembly> {
        template <typename T>
        friend class VolumeBuilder;
        template <typename T>
        friend class StructureBuilder;
        friend AssemblyPtr CreateAssembly(G4String name);
 
        friend class i_shared_ptr<Assembly>;
 
    public:
        AssemblyPtr AddStructure(const StructureView &other);
 
    private:
        //ctor used by factory.  Will construct an assembly from a builder actually.
        template <typename T>
        Assembly(i_shared_ptr<T> other, // NOLINT(*-explicit-constructor)
            std::enable_if_t<std::is_base_of_v<IStructureBuilder, T>,
                int>  = 0) : StructureBuilder<Assembly>(other, SET_LINK) {
        }
 
        [[noreturn]]
        G4VSolid *SolidConstructor(const G4String &name) override {
            throw std::runtime_error(
                "Error in StructureBuilderReference::SolidConstructor(const G4String &name) "
                + this->builder_configs_->name + " \n" +
                "SolidConstructor(const G4String &name) is not implemented.");
        }
 
        template <typename T>
        friend class i_shared_ptr;
 
 
        Assembly(const Assembly &other);
        Assembly() = default;
 
    protected:
        // Clone impl, this returns a type-erased ISolidPtr
        // But in reality must bee a BuilderPtr here to be downcast by Clone().
 
    public:
        Assembly &operator=(const Assembly &other) = delete;
    };
}
 
 
#endif