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37 * Implements gmx::Options.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
40 * \ingroup module_options
46 #include "gromacs/options/abstractoption.h"
47 #include "gromacs/options/abstractoptionstorage.h"
48 #include "gromacs/utility/arrayref.h"
49 #include "gromacs/utility/exceptions.h"
50 #include "gromacs/utility/gmxassert.h"
51 #include "gromacs/utility/stringutil.h"
53 #include "options-impl.h"
58 /********************************************************************
62 IOptionManager::~IOptionManager()
66 /********************************************************************
70 Options::Impl::Impl(const char *name, const char *title)
71 : name_(name != NULL ? name : ""), title_(title != NULL ? title : ""),
76 Options::Impl::~Impl()
80 Options *Options::Impl::findSubSection(const char *name) const
82 SubSectionList::const_iterator i;
83 for (i = subSections_.begin(); i != subSections_.end(); ++i)
85 if ((*i)->name() == name)
93 AbstractOptionStorage *Options::Impl::findOption(const char *name) const
95 OptionList::const_iterator i;
96 for (i = options_.begin(); i != options_.end(); ++i)
98 if ((*i)->name() == name)
106 void Options::Impl::startSource()
108 OptionList::const_iterator i;
109 for (i = options_.begin(); i != options_.end(); ++i)
111 AbstractOptionStorage &option = **i;
112 option.startSource();
114 SubSectionList::const_iterator j;
115 for (j = subSections_.begin(); j != subSections_.end(); ++j)
117 Options §ion = **j;
118 section.impl_->startSource();
122 /********************************************************************
126 Options::Options(const char *name, const char *title)
127 : impl_(new Impl(name, title))
135 const std::string &Options::name() const
140 const std::string &Options::title() const
142 return impl_->title_;
145 const std::string &Options::description() const
147 return impl_->description_;
150 void Options::setDescription(const std::string &desc)
152 impl_->description_ = desc;
155 void Options::setDescription(const ConstArrayRef<const char *> &descArray)
157 impl_->description_ = joinStrings(descArray, "\n");
160 void Options::addManager(IOptionManager *manager)
162 GMX_RELEASE_ASSERT(impl_->parent_ == NULL,
163 "Can only add a manager in a top-level Options object");
164 // This ensures that all options see the same set of managers.
165 GMX_RELEASE_ASSERT(impl_->options_.empty(),
166 "Can only add a manager before options");
167 // This check could be relaxed if we instead checked that the subsections
168 // do not have options.
169 GMX_RELEASE_ASSERT(impl_->subSections_.empty(),
170 "Can only add a manager before subsections");
171 impl_->managers_.add(manager);
174 void Options::addSubSection(Options *section)
176 // This is required, because managers are used from the root Options
177 // object, so they are only seen after the subsection has been added.
178 GMX_RELEASE_ASSERT(section->impl_->options_.empty(),
179 "Can only add a subsection before it has any options");
180 GMX_RELEASE_ASSERT(section->impl_->managers_.empty(),
181 "Can only have managers in a top-level Options object");
182 // Make sure that section is not already inserted somewhere.
183 GMX_RELEASE_ASSERT(section->impl_->parent_ == NULL,
184 "Cannot add as subsection twice");
185 // Make sure that there are no duplicate sections.
186 GMX_RELEASE_ASSERT(impl_->findSubSection(section->name().c_str()) == NULL,
187 "Duplicate subsection name");
188 impl_->subSections_.push_back(section);
189 section->impl_->parent_ = this;
192 OptionInfo *Options::addOption(const AbstractOption &settings)
194 Options::Impl *root = impl_.get();
195 while (root->parent_ != NULL)
197 root = root->parent_->impl_.get();
199 Impl::AbstractOptionStoragePointer option(settings.createStorage(root->managers_));
200 if (impl_->findOption(option->name().c_str()) != NULL)
202 GMX_THROW(APIError("Duplicate option: " + option->name()));
204 impl_->options_.push_back(move(option));
205 return &impl_->options_.back()->optionInfo();
208 bool Options::isSet(const char *name) const
210 AbstractOptionStorage *option = impl_->findOption(name);
211 return (option != NULL ? option->isSet() : false);
214 void Options::finish()
216 // TODO: Consider how to customize these error messages based on context.
217 ExceptionInitializer errors("Invalid input values");
218 Impl::OptionList::const_iterator i;
219 for (i = impl_->options_.begin(); i != impl_->options_.end(); ++i)
221 AbstractOptionStorage &option = **i;
226 catch (UserInputError &ex)
228 ex.prependContext("In option " + option.name());
229 errors.addCurrentExceptionAsNested();
232 Impl::SubSectionList::const_iterator j;
233 for (j = impl_->subSections_.begin(); j != impl_->subSections_.end(); ++j)
235 Options §ion = **j;
240 catch (const UserInputError &)
242 errors.addCurrentExceptionAsNested();
245 if (errors.hasNestedExceptions())
247 // TODO: This exception type may not always be appropriate.
248 GMX_THROW(InvalidInputError(errors));