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37 * Implements gmx::Options.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
40 * \ingroup module_options
44 #include "gromacs/options/options.h"
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/messagestringcollector.h"
52 #include "gromacs/utility/stringutil.h"
54 #include "options-impl.h"
59 /********************************************************************
60 * OptionManagerInterface
63 OptionManagerInterface::~OptionManagerInterface()
67 /********************************************************************
71 Options::Impl::Impl(const char *name, const char *title)
72 : name_(name != NULL ? name : ""), title_(title != NULL ? title : ""),
77 Options::Impl::~Impl()
81 Options *Options::Impl::findSubSection(const char *name) const
83 SubSectionList::const_iterator i;
84 for (i = subSections_.begin(); i != subSections_.end(); ++i)
86 if ((*i)->name() == name)
94 AbstractOptionStorage *Options::Impl::findOption(const char *name) const
96 OptionList::const_iterator i;
97 for (i = options_.begin(); i != options_.end(); ++i)
99 if ((*i)->name() == name)
107 void Options::Impl::startSource()
109 OptionList::const_iterator i;
110 for (i = options_.begin(); i != options_.end(); ++i)
112 AbstractOptionStorage &option = **i;
113 option.startSource();
115 SubSectionList::const_iterator j;
116 for (j = subSections_.begin(); j != subSections_.end(); ++j)
118 Options §ion = **j;
119 section.impl_->startSource();
123 /********************************************************************
127 Options::Options(const char *name, const char *title)
128 : impl_(new Impl(name, title))
136 const std::string &Options::name() const
141 const std::string &Options::title() const
143 return impl_->title_;
146 const std::string &Options::description() const
148 return impl_->description_;
151 void Options::setDescription(const std::string &desc)
153 impl_->description_ = desc;
156 void Options::setDescription(const ConstArrayRef<const char *> &descArray)
158 impl_->description_ = concatenateStrings(descArray.data(), descArray.size());
161 void Options::addManager(OptionManagerInterface *manager)
163 GMX_RELEASE_ASSERT(impl_->parent_ == NULL,
164 "Can only add a manager in a top-level Options object");
165 // This ensures that all options see the same set of managers.
166 GMX_RELEASE_ASSERT(impl_->options_.empty(),
167 "Can only add a manager before options");
168 // This check could be relaxed if we instead checked that the subsections
169 // do not have options.
170 GMX_RELEASE_ASSERT(impl_->subSections_.empty(),
171 "Can only add a manager before subsections");
172 impl_->managers_.add(manager);
175 void Options::addSubSection(Options *section)
177 // This is required, because managers are used from the root Options
178 // object, so they are only seen after the subsection has been added.
179 GMX_RELEASE_ASSERT(section->impl_->options_.empty(),
180 "Can only add a subsection before it has any options");
181 GMX_RELEASE_ASSERT(section->impl_->managers_.empty(),
182 "Can only have managers in a top-level Options object");
183 // Make sure that section is not already inserted somewhere.
184 GMX_RELEASE_ASSERT(section->impl_->parent_ == NULL,
185 "Cannot add as subsection twice");
186 // Make sure that there are no duplicate sections.
187 GMX_RELEASE_ASSERT(impl_->findSubSection(section->name().c_str()) == NULL,
188 "Duplicate subsection name");
189 impl_->subSections_.push_back(section);
190 section->impl_->parent_ = this;
193 OptionInfo *Options::addOption(const AbstractOption &settings)
195 Options::Impl *root = impl_.get();
196 while (root->parent_ != NULL)
198 root = root->parent_->impl_.get();
200 Impl::AbstractOptionStoragePointer option(settings.createStorage(root->managers_));
201 if (impl_->findOption(option->name().c_str()) != NULL)
203 GMX_THROW(APIError("Duplicate option: " + option->name()));
205 impl_->options_.push_back(move(option));
206 return &impl_->options_.back()->optionInfo();
209 bool Options::isSet(const char *name) const
211 AbstractOptionStorage *option = impl_->findOption(name);
212 return (option != NULL ? option->isSet() : false);
215 void Options::finish()
217 // TODO: Consider how to customize these error messages based on context.
218 ExceptionInitializer errors("Invalid input values");
219 Impl::OptionList::const_iterator i;
220 for (i = impl_->options_.begin(); i != impl_->options_.end(); ++i)
222 AbstractOptionStorage &option = **i;
227 catch (UserInputError &ex)
229 ex.prependContext("In option " + option.name());
230 errors.addCurrentExceptionAsNested();
233 Impl::SubSectionList::const_iterator j;
234 for (j = impl_->subSections_.begin(); j != impl_->subSections_.end(); ++j)
236 Options §ion = **j;
241 catch (const UserInputError &)
243 errors.addCurrentExceptionAsNested();
246 if (errors.hasNestedExceptions())
248 // TODO: This exception type may not always be appropriate.
249 GMX_THROW(InvalidInputError(errors));