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Gromacs
2019
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Gromacs
2019
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#include <gromacs/options/options.h>
Inheritance diagram for gmx::Options: Collaboration diagram for gmx::Options:Collection of options.
See Extensible Handling of Options (options) for an overview of how the options work. The IOptionsContainerWithSections interface documents how to add options.
In order to keep the public interface of this class simple, functionality to assign values to options is provided by a separate OptionsAssigner class. Similarly, functionality for looping over all options (e.g., for writing out help) is provided by OptionsIterator.
Public Member Functions | |
| Options () | |
| Initializes an empty options root container. | |
| void | addManager (IOptionManager *manager) |
| Adds an option manager. More... | |
| IOptionsContainer & | addGroup () override |
| Creates a subgroup of options within the current options. More... | |
| OptionSectionInfo & | rootSection () |
| Returns a handle to the root section. | |
| const OptionSectionInfo & | rootSection () const |
| Returns a handle to the root section. | |
| void | finish () |
| Notifies the collection that all option values are assigned. More... | |
| template<class SectionType > | |
| SectionType::HandleType | addSection (const SectionType §ion) |
| Adds a section to this collection. More... | |
| template<class OptionType > | |
| OptionType::InfoType * | addOption (const OptionType &settings) |
| Adds a recognized option. More... | |
Friends | |
| class | OptionsAssigner |
| Needed to be able to extend the interface of this object. | |
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overridevirtual |
Creates a subgroup of options within the current options.
To add options to the group, use the returned interface.
Currently, this is only used to influence the order of options: all options in a group appear before options in a group added after it, no matter in which order the options are added to the groups. In the future, the groups could also be used to influence the help output.
Implements gmx::IOptionsContainer.
| void gmx::Options::addManager | ( | IOptionManager * | manager | ) |
Adds an option manager.
| manager | Manager to add. |
| std::bad_alloc | if out of memory. |
Option managers are used by some types of options that require interaction between different option instances (e.g., selection options), or need to support globally set properties (e.g., a global default file prefix). Option objects can retrieve the pointer to their manager when they are created, and the caller can alter the behavior of the options through the manager. See the individual managers for details.
Caller is responsible for memory management of manager. The Options object (and its contained options) only stores a reference to the object.
This method cannot be called after adding options or sections.
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inlineinherited |
Adds a recognized option.
| OptionType | Type of the options description object. |
| [in] | settings | Option description. |
| APIError | if invalid option settings are provided. |
The return value is a pointer for more convenient use in callers: often callers need to declare the variable that will hold the return value in wider scope than would be achieved by declaring it at the site where addOption() is called. The returned pointer must not be freed.
See class documentation for example usage.
OptionType::InfoType must specify a type that derives from OptionInfo and matches the type that is returned by AbstractOptionStorage::optionInfo() for the storage object that corresponds to OptionType.
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inlineinherited |
Adds a section to this collection.
| SectionType | Type of the section description object. |
| [in] | section | Section description. |
| APIError | if invalid option settings are provided. |
Options can be added to the section through the returned handle.
| void gmx::Options::finish | ( | ) |
Notifies the collection that all option values are assigned.
| InvalidInputError | if invalid user input is detected. |
This function should be called after no more option values are to be assigned. Values in storage variables are guaranteed to be available only after this call, although in most cases, they are available already during assignment.
If invalid option values, e.g., missing required option, is detected at this point, this function throws. The thrown exception contains information on all errors detected during the call.
1.8.5