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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
49 #include "gromacs/options/ioptionscontainerwithsections.h"
50 #include "gromacs/options/isectionstorage.h"
51 #include "gromacs/utility/classhelpers.h"
52 #include "gromacs/utility/gmxassert.h"
57 class IOptionSectionStorage;
61 class OptionSectionImpl;
65 * Base class for specifying option section properties.
67 * \ingroup module_options
69 class AbstractOptionSection
73 //! Initializes option properties with the given name.
74 explicit AbstractOptionSection(const char *name) : name_(name) {}
76 virtual ~AbstractOptionSection() {}
78 * Creates a storage object corresponding to this section.
80 * Similar to AbstractOption::createStorage().
82 virtual IOptionSectionStorage *createStorage() const = 0;
88 friend class internal::OptionSectionImpl;
92 * Base class for handles to option sections.
94 * This class implements the common functionality for adding options and
95 * subsections to option sections.
97 * \ingroup module_options
99 class AbstractOptionSectionHandle : public IOptionsContainerWithSections
102 // From IOptionsContainer
103 //! \copydoc IOptionsContainer::addGroup()
104 virtual IOptionsContainer &addGroup();
109 * Returns the storage for a particular type of section.
111 * This is intended for use in derived class constructors, where the
112 * handle needs access to the actual storage. The handle should know
113 * the type of storage created for the section type it deals with, so
114 * the cast should always be successful.
116 template <typename StorageType>
117 static StorageType *getStorage(internal::OptionSectionImpl *section)
119 IOptionSectionStorage *storage = getStorage(section);
120 StorageType *typedStorage
121 = dynamic_cast<StorageType *>(storage);
122 GMX_ASSERT(typedStorage != nullptr, "Mismatching section storage type");
126 //! Wraps a given section storage object.
127 explicit AbstractOptionSectionHandle(internal::OptionSectionImpl *section)
134 // From IOptionsContainerWithSections
135 virtual internal::OptionSectionImpl *
136 addSectionImpl(const AbstractOptionSection §ion);
137 // From IOptionsContainer
138 virtual OptionInfo *addOptionImpl(const AbstractOption &settings);
141 * Implementation helper for the template method.
143 * This allows encapsulating the implementation within the source file.
145 static IOptionSectionStorage *getStorage(internal::OptionSectionImpl *section);
147 internal::OptionSectionImpl *section_;
150 class AbstractOptionSectionInfo
153 //! Wraps a given section storage object.
154 explicit AbstractOptionSectionInfo(internal::OptionSectionImpl *section)
159 //! Returns the name of the section.
160 const std::string &name() const;
162 //! Returns the wrapped section storage object.
163 internal::OptionSectionImpl §ion() { return section_; }
164 //! Returns the wrapped section storage object.
165 const internal::OptionSectionImpl §ion() const { return section_; }
168 internal::OptionSectionImpl §ion_;
170 GMX_DISALLOW_COPY_AND_ASSIGN(AbstractOptionSectionInfo);