diff options
Diffstat (limited to 'src/corelib/kernel/qmetacontainer.cpp')
| -rw-r--r-- | src/corelib/kernel/qmetacontainer.cpp | 476 |
1 files changed, 8 insertions, 468 deletions
diff --git a/src/corelib/kernel/qmetacontainer.cpp b/src/corelib/kernel/qmetacontainer.cpp index 2fa46507fa4..4b4ea06d8b9 100644 --- a/src/corelib/kernel/qmetacontainer.cpp +++ b/src/corelib/kernel/qmetacontainer.cpp @@ -7,37 +7,6 @@ QT_BEGIN_NAMESPACE /*! - \class QMetaSequence - \inmodule QtCore - \since 6.0 - \brief The QMetaSequence class allows type erased access to sequential containers. - - \ingroup objectmodel - - \compares equality - - The class provides a number of primitive container operations, using void* - as operands. This way, you can manipulate a generic container retrieved from - a Variant without knowing its type. - - The void* arguments to the various methods are typically created by using - a \l QVariant of the respective container or value type, and calling - its \l QVariant::data() or \l QVariant::constData() methods. However, you - can also pass plain pointers to objects of the container or value type. - - Iterator invalidation follows the rules given by the underlying containers - and is not expressed in the API. Therefore, for a truly generic container, - any iterators should be considered invalid after any write operation. -*/ - -/*! - \fn template<typename C> QMetaSequence QMetaSequence::fromContainer() - \since 6.0 - - Returns the QMetaSequence corresponding to the type given as template parameter. -*/ - -/*! \class QMetaContainer \inmodule QtCore \since 6.0 @@ -66,7 +35,7 @@ QT_BEGIN_NAMESPACE specializations of input iterators. This method will also return \c true if the container provides one of those. - QMetaSequence assumes that const and non-const iterators for the same + QMetaContainer assumes that const and non-const iterators for the same container have the same iterator traits. */ bool QMetaContainer::hasInputIterator() const @@ -83,7 +52,7 @@ bool QMetaContainer::hasInputIterator() const specializations of forward iterators. This method will also return \c true if the container provides one of those. - QMetaSequence assumes that const and non-const iterators for the same + QMetaContainer assumes that const and non-const iterators for the same container have the same iterator traits. */ bool QMetaContainer::hasForwardIterator() const @@ -99,7 +68,7 @@ bool QMetaContainer::hasForwardIterator() const std::bidirectional_iterator_tag and std::random_access_iterator_tag, respectively. Otherwise returns \c false. - QMetaSequence assumes that const and non-const iterators for the same + QMetaContainer assumes that const and non-const iterators for the same container have the same iterator traits. */ bool QMetaContainer::hasBidirectionalIterator() const @@ -114,7 +83,7 @@ bool QMetaContainer::hasBidirectionalIterator() const iterator as defined by std::random_access_iterator_tag, otherwise returns \c false. - QMetaSequence assumes that const and non-const iterators for the same + QMetaContainer assumes that const and non-const iterators for the same container have the same iterator traits. */ bool QMetaContainer::hasRandomAccessIterator() const @@ -125,147 +94,6 @@ bool QMetaContainer::hasRandomAccessIterator() const } /*! - Returns the meta type for values stored in the container. - */ -QMetaType QMetaSequence::valueMetaType() const -{ - if (auto iface = d()) - return QMetaType(iface->valueMetaType); - return QMetaType(); -} - -/*! - Returns \c true if the underlying container is sortable, otherwise returns - \c false. A container is considered sortable if values added to it are - placed in a defined location. Inserting into or adding to a sortable - container will always succeed. Inserting into or adding to an unsortable - container may not succeed, for example if the container is a QSet that - already contains the value being inserted. - - \sa addValue(), insertValueAtIterator(), canAddValueAtBegin(), - canAddValueAtEnd(), canRemoveValueAtBegin(), canRemoveValueAtEnd() - */ -bool QMetaSequence::isSortable() const -{ - if (auto iface = d()) { - return (iface->addRemoveCapabilities - & (QtMetaContainerPrivate::CanAddAtBegin | QtMetaContainerPrivate::CanAddAtEnd)) - && (iface->addRemoveCapabilities - & (QtMetaContainerPrivate::CanRemoveAtBegin - | QtMetaContainerPrivate::CanRemoveAtEnd)); - } - return false; -} - -/*! - Returns \c true if values added using \l addValue() can be placed at the - beginning of the container, otherwise returns \c false. - - \sa addValueAtBegin(), canAddValueAtEnd() - */ -bool QMetaSequence::canAddValueAtBegin() const -{ - if (auto iface = d()) { - return iface->addValueFn - && iface->addRemoveCapabilities & QtMetaContainerPrivate::CanAddAtBegin; - } - return false; -} - -/*! - Adds \a value to the beginning of \a container if possible. If - \l canAddValueAtBegin() returns \c false, the \a value is not added. - - \sa canAddValueAtBegin(), isSortable(), removeValueAtBegin() - */ -void QMetaSequence::addValueAtBegin(void *container, const void *value) const -{ - if (canAddValueAtBegin()) - d()->addValueFn(container, value, QtMetaContainerPrivate::QMetaSequenceInterface::AtBegin); -} - -/*! - Returns \c true if values can be removed from the beginning of the container - using \l removeValue(), otherwise returns \c false. - - \sa removeValueAtBegin(), canRemoveValueAtEnd() - */ -bool QMetaSequence::canRemoveValueAtBegin() const -{ - if (auto iface = d()) { - return iface->removeValueFn - && iface->addRemoveCapabilities & QtMetaContainerPrivate::CanRemoveAtBegin; - } - return false; -} - -/*! - Removes a value from the beginning of \a container if possible. If - \l canRemoveValueAtBegin() returns \c false, the value is not removed. - - \sa canRemoveValueAtBegin(), isSortable(), addValueAtBegin() - */ -void QMetaSequence::removeValueAtBegin(void *container) const -{ - if (canRemoveValueAtBegin()) - d()->removeValueFn(container, QtMetaContainerPrivate::QMetaSequenceInterface::AtBegin); -} - -/*! - Returns \c true if values added using \l addValue() can be placed at the - end of the container, otherwise returns \c false. - - \sa addValueAtEnd(), canAddValueAtBegin() - */ -bool QMetaSequence::canAddValueAtEnd() const -{ - if (auto iface = d()) { - return iface->addValueFn - && iface->addRemoveCapabilities & QtMetaContainerPrivate::CanAddAtEnd; - } - return false; -} - -/*! - Adds \a value to the end of \a container if possible. If - \l canAddValueAtEnd() returns \c false, the \a value is not added. - - \sa canAddValueAtEnd(), isSortable(), removeValueAtEnd() - */ -void QMetaSequence::addValueAtEnd(void *container, const void *value) const -{ - if (canAddValueAtEnd()) - d()->addValueFn(container, value, QtMetaContainerPrivate::QMetaSequenceInterface::AtEnd); -} - -/*! - Returns \c true if values can be removed from the end of the container - using \l removeValue(), otherwise returns \c false. - - \sa removeValueAtEnd(), canRemoveValueAtBegin() - */ -bool QMetaSequence::canRemoveValueAtEnd() const -{ - if (auto iface = d()) { - return iface->removeValueFn - && iface->addRemoveCapabilities & QtMetaContainerPrivate::CanRemoveAtEnd; - } - return false; -} - -/*! - Removes a value from the end of \a container if possible. If - \l canRemoveValueAtEnd() returns \c false, the value is not removed. - - \sa canRemoveValueAtEnd(), isSortable(), addValueAtEnd() - */ -void QMetaSequence::removeValueAtEnd(void *container) const -{ - if (canRemoveValueAtEnd()) - d()->removeValueFn(container, QtMetaContainerPrivate::QMetaSequenceInterface::AtEnd); -} - -/*! Returns \c true if the container can be queried for its size, \c false otherwise. @@ -309,122 +137,6 @@ void QMetaContainer::clear(void *container) const } /*! - Returns \c true if values can be retrieved from the container by index, - otherwise \c false. - - \sa valueAtIndex() - */ -bool QMetaSequence::canGetValueAtIndex() const -{ - if (auto iface = d()) - return iface->valueAtIndexFn; - return false; -} - -/*! - Retrieves the value at \a index in the \a container and places it in the - memory location pointed to by \a result, if that is possible. - - \sa canGetValueAtIndex() - */ -void QMetaSequence::valueAtIndex(const void *container, qsizetype index, void *result) const -{ - if (canGetValueAtIndex()) - d()->valueAtIndexFn(container, index, result); -} - -/*! - Returns \c true if a value can be written to the container by index, - otherwise \c false. - - \sa setValueAtIndex() -*/ -bool QMetaSequence::canSetValueAtIndex() const -{ - if (auto iface = d()) - return iface->setValueAtIndexFn; - return false; -} - -/*! - Overwrites the value at \a index in the \a container using the \a value - passed as parameter if that is possible. - - \sa canSetValueAtIndex() - */ -void QMetaSequence::setValueAtIndex(void *container, qsizetype index, const void *value) const -{ - if (canSetValueAtIndex()) - d()->setValueAtIndexFn(container, index, value); -} - -/*! - Returns \c true if values can be added to the container, \c false - otherwise. - - \sa addValue(), isSortable() - */ -bool QMetaSequence::canAddValue() const -{ - if (auto iface = d()) - return iface->addValueFn; - return false; -} - -/*! - Adds \a value to the \a container if possible. If \l canAddValue() - returns \c false, the \a value is not added. Else, if - \l canAddValueAtEnd() returns \c true, the \a value is added - to the end of the \a container. Else, if - \l canAddValueAtBegin() returns \c true, the \a value is added to - the beginning of the container. Else, the value is added in an unspecified - place or not at all. The latter is the case for adding values to an - unordered container, for example \l QSet. - - \sa canAddValue(), canAddValueAtBegin(), - canAddValueAtEnd(), isSortable(), removeValue() - */ -void QMetaSequence::addValue(void *container, const void *value) const -{ - if (canAddValue()) { - d()->addValueFn(container, value, - QtMetaContainerPrivate::QMetaSequenceInterface::Unspecified); - } -} - -/*! - Returns \c true if values can be removed from the container, \c false - otherwise. - - \sa removeValue(), isSortable() - */ -bool QMetaSequence::canRemoveValue() const -{ - if (auto iface = d()) - return iface->removeValueFn; - return false; -} - -/*! - Removes a value from the \a container if possible. If - \l canRemoveValue() returns \c false, no value is removed. Else, if - \l canRemoveValueAtEnd() returns \c true, the last value in - the \a container is removed. Else, if \l canRemoveValueAtBegin() - returns \c true, the first value in the \a container is removed. Else, - an unspecified value or nothing is removed. - - \sa canRemoveValue(), canRemoveValueAtBegin(), - canRemoveValueAtEnd(), isSortable(), addValue() - */ -void QMetaSequence::removeValue(void *container) const -{ - if (canRemoveValue()) { - d()->removeValueFn(container, - QtMetaContainerPrivate::QMetaSequenceInterface::Unspecified); - } -} - -/*! Returns \c true if the underlying container offers a non-const iterator, \c false otherwise. @@ -456,7 +168,7 @@ void *QMetaContainer::begin(void *container) const { return hasIterator() ? d_ptr->createIteratorFn( - container, QtMetaContainerPrivate::QMetaSequenceInterface::AtBegin) + container, QtMetaContainerPrivate::QMetaContainerInterface::AtBegin) : nullptr; } @@ -473,7 +185,7 @@ void *QMetaContainer::end(void *container) const { return hasIterator() ? d_ptr->createIteratorFn( - container, QtMetaContainerPrivate::QMetaSequenceInterface::AtEnd) + container, QtMetaContainerPrivate::QMetaContainerInterface::AtEnd) : nullptr; } @@ -541,137 +253,6 @@ qsizetype QMetaContainer::diffIterator(const void *i, const void *j) const } /*! - Returns \c true if the underlying container can retrieve the value pointed - to by a non-const iterator, \c false otherwise. - - \sa hasIterator(), valueAtIterator() - */ -bool QMetaSequence::canGetValueAtIterator() const -{ - if (auto iface = d()) - return iface->valueAtIteratorFn; - return false; -} - -/*! - Retrieves the value pointed to by the non-const \a iterator and stores it - in the memory location pointed to by \a result, if possible. - - \sa canGetValueAtIterator(), begin(), end() - */ -void QMetaSequence::valueAtIterator(const void *iterator, void *result) const -{ - if (canGetValueAtIterator()) - d()->valueAtIteratorFn(iterator, result); -} - -/*! - Returns \c true if the underlying container can write to the value pointed - to by a non-const iterator, \c false otherwise. - - \sa hasIterator(), setValueAtIterator() - */ -bool QMetaSequence::canSetValueAtIterator() const -{ - if (auto iface = d()) - return iface->setValueAtIteratorFn; - return false; -} - -/*! - Writes \a value to the value pointed to by the non-const \a iterator, if - possible. - - \sa canSetValueAtIterator(), begin(), end() - */ -void QMetaSequence::setValueAtIterator(const void *iterator, const void *value) const -{ - if (canSetValueAtIterator()) - d()->setValueAtIteratorFn(iterator, value); -} - -/*! - Returns \c true if the underlying container can insert a new value, taking - the location pointed to by a non-const iterator into account. - - \sa hasIterator(), insertValueAtIterator() - */ -bool QMetaSequence::canInsertValueAtIterator() const -{ - if (auto iface = d()) - return iface->insertValueAtIteratorFn; - return false; -} - -/*! - Inserts \a value into the \a container, if possible, taking the non-const - \a iterator into account. If \l canInsertValueAtIterator() returns - \c false, the \a value is not inserted. Else if \l isSortable() returns - \c true, the value is inserted before the value pointed to by - \a iterator. Else, the \a value is inserted at an unspecified place or not - at all. In the latter case, the \a iterator is taken as a hint. If it points - to the correct place for the \a value, the operation may be faster than a - \l addValue() without iterator. - - \sa canInsertValueAtIterator(), isSortable(), begin(), end() - */ -void QMetaSequence::insertValueAtIterator(void *container, const void *iterator, - const void *value) const -{ - if (canInsertValueAtIterator()) - d()->insertValueAtIteratorFn(container, iterator, value); -} - -/*! - Returns \c true if the value pointed to by a non-const iterator can be - erased, \c false otherwise. - - \sa hasIterator(), eraseValueAtIterator() - */ -bool QMetaSequence::canEraseValueAtIterator() const -{ - if (auto iface = d()) - return iface->eraseValueAtIteratorFn; - return false; -} - -/*! - Erases the value pointed to by the non-const \a iterator from the - \a container, if possible. - - \sa canEraseValueAtIterator(), begin(), end() - */ -void QMetaSequence::eraseValueAtIterator(void *container, const void *iterator) const -{ - if (canEraseValueAtIterator()) - d()->eraseValueAtIteratorFn(container, iterator); -} - -/*! - Returns \c true if a range between two iterators can be erased from the - container, \c false otherwise. - */ -bool QMetaSequence::canEraseRangeAtIterator() const -{ - if (auto iface = d()) - return iface->eraseRangeAtIteratorFn; - return false; -} - -/*! - Erases the range of values between the iterators \a iterator1 and - \a iterator2 from the \a container, if possible. - - \sa canEraseValueAtIterator(), begin(), end() - */ -void QMetaSequence::eraseRangeAtIterator(void *container, const void *iterator1, - const void *iterator2) const -{ - if (canEraseRangeAtIterator()) - d()->eraseRangeAtIteratorFn(container, iterator1, iterator2); -} - -/*! Returns \c true if the underlying container offers a const iterator, \c false otherwise. @@ -704,7 +285,7 @@ void *QMetaContainer::constBegin(const void *container) const { return hasConstIterator() ? d_ptr->createConstIteratorFn( - container, QtMetaContainerPrivate::QMetaSequenceInterface::AtBegin) + container, QtMetaContainerPrivate::QMetaContainerInterface::AtBegin) : nullptr; } @@ -721,7 +302,7 @@ void *QMetaContainer::constEnd(const void *container) const { return hasConstIterator() ? d_ptr->createConstIteratorFn( - container, QtMetaContainerPrivate::QMetaSequenceInterface::AtEnd) + container, QtMetaContainerPrivate::QMetaContainerInterface::AtEnd) : nullptr; } @@ -788,45 +369,4 @@ qsizetype QMetaContainer::diffConstIterator(const void *i, const void *j) const return hasConstIterator() ? d_ptr->diffConstIteratorFn(i, j) : 0; } -/*! - Returns \c true if the underlying container can retrieve the value pointed - to by a const iterator, \c false otherwise. - - \sa hasConstIterator(), valueAtConstIterator() - */ -bool QMetaSequence::canGetValueAtConstIterator() const -{ - if (auto iface = d()) - return iface->valueAtConstIteratorFn; - return false; -} - -/*! - Retrieves the value pointed to by the const \a iterator and stores it - in the memory location pointed to by \a result, if possible. - - \sa canGetValueAtConstIterator(), constBegin(), constEnd() - */ -void QMetaSequence::valueAtConstIterator(const void *iterator, void *result) const -{ - if (canGetValueAtConstIterator()) - d()->valueAtConstIteratorFn(iterator, result); -} - -/*! - \fn bool QMetaSequence::operator==(const QMetaSequence &lhs, const QMetaSequence &rhs) - \since 6.0 - - Returns \c true if the QMetaSequence \a lhs represents the same container type - as the QMetaSequence \a rhs, otherwise returns \c false. -*/ - -/*! - \fn bool QMetaSequence::operator!=(const QMetaSequence &lhs, const QMetaSequence &rhs) - \since 6.0 - - Returns \c true if the QMetaSequence \a lhs represents a different container - type than the QMetaSequence \a rhs, otherwise returns \c false. -*/ - QT_END_NAMESPACE |