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37 * Declares base classes for declaring option sections.
39 * This header defines base classes for option section settings that are used
40 * with IOptionsContainerWithSections::addSection(). These classes implement
41 * the "named parameter" idiom for specifying section properties.
43 * \author Teemu Murtola <teemu.murtola@gmail.com>
44 * \ingroup module_options
46 #ifndef GMX_OPTIONS_ABSTRACTSECTION_H
47 #define GMX_OPTIONS_ABSTRACTSECTION_H
51 #include "gromacs/options/ioptionscontainerwithsections.h"
52 #include "gromacs/utility/classhelpers.h"
53 #include "gromacs/utility/gmxassert.h"
55 #include "isectionstorage.h"
60 class IOptionSectionStorage;
64 class OptionSectionImpl;
68 * Base class for specifying option section properties.
70 * \ingroup module_options
72 class AbstractOptionSection
76 //! Initializes option properties with the given name.
77 explicit AbstractOptionSection(const char* name) : name_(name) {}
78 virtual ~AbstractOptionSection() {}
80 * Creates a storage object corresponding to this section.
82 * Similar to AbstractOption::createStorage().
84 virtual std::unique_ptr<IOptionSectionStorage> createStorage() const = 0;
90 friend class internal::OptionSectionImpl;
94 * Base class for handles to option sections.
96 * This class implements the common functionality for adding options and
97 * subsections to option sections.
99 * \ingroup module_options
101 class AbstractOptionSectionHandle : public IOptionsContainerWithSections
104 // From IOptionsContainer
105 //! \copydoc IOptionsContainer::addGroup()
106 IOptionsContainer& addGroup() override;
111 * Returns the storage for a particular type of section.
113 * This is intended for use in derived class constructors, where the
114 * handle needs access to the actual storage. The handle should know
115 * the type of storage created for the section type it deals with, so
116 * the cast should always be successful.
118 template<typename StorageType>
119 static StorageType* getStorage(internal::OptionSectionImpl* section)
121 IOptionSectionStorage* storage = getStorage(section);
122 StorageType* typedStorage = dynamic_cast<StorageType*>(storage);
123 GMX_ASSERT(typedStorage != nullptr, "Mismatching section storage type");
127 //! Wraps a given section storage object.
128 explicit AbstractOptionSectionHandle(internal::OptionSectionImpl* section) : section_(section)
134 // From IOptionsContainerWithSections
135 internal::OptionSectionImpl* addSectionImpl(const AbstractOptionSection& section) override;
136 // From IOptionsContainer
137 OptionInfo* addOptionImpl(const AbstractOption& settings) override;
140 * Implementation helper for the template method.
142 * This allows encapsulating the implementation within the source file.
144 static IOptionSectionStorage* getStorage(internal::OptionSectionImpl* section);
146 internal::OptionSectionImpl* section_;
149 class AbstractOptionSectionInfo
152 //! Wraps a given section storage object.
153 explicit AbstractOptionSectionInfo(internal::OptionSectionImpl* section) : section_(*section) {}
155 //! Returns the name of the section.
156 const std::string& name() const;
158 //! Returns the wrapped section storage object.
159 internal::OptionSectionImpl& section() { return section_; }
160 //! Returns the wrapped section storage object.
161 const internal::OptionSectionImpl& section() const { return section_; }
164 internal::OptionSectionImpl& section_;
166 GMX_DISALLOW_COPY_AND_ASSIGN(AbstractOptionSectionInfo);