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| |
| #include "qatomiccomparators_p.h" |
| #include "qatomicstring_p.h" |
| #include "qcomparisonplatform_p.h" |
| #include "qvaluefactory_p.h" |
| |
| #include "qcomparisonfactory_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| using namespace QPatternist; |
| |
| /** |
| * @short Helper class for ComparisonFactory::fromLexical() which exposes |
| * CastingPlatform appropriately. |
| * |
| * @relates ComparisonFactory |
| */ |
| class PerformComparison : public ComparisonPlatform<PerformComparison, true> |
| , public SourceLocationReflection |
| { |
| public: |
| PerformComparison(const SourceLocationReflection *const sourceLocationReflection, |
| const AtomicComparator::Operator op) : m_sourceReflection(sourceLocationReflection) |
| , m_operator(op) |
| { |
| Q_ASSERT(m_sourceReflection); |
| } |
| |
| bool operator()(const AtomicValue::Ptr &operand1, |
| const AtomicValue::Ptr &operand2, |
| const SchemaType::Ptr &type, |
| const ReportContext::Ptr &context) |
| { |
| const ItemType::Ptr asItemType((AtomicType::Ptr(type))); |
| |
| /* One area where the Query Transform world differs from the Schema |
| * world is that @c xs:duration is not considedered comparable, because |
| * it's according to Schema is partially comparable. This means |
| * ComparisonPlatform::fetchComparator() flags it as impossible, and |
| * hence we need to override that. |
| * |
| * SchemaType::wxsTypeMatches() will return true for sub-types of @c |
| * xs:duration as well, but that's ok since AbstractDurationComparator |
| * works for them too. */ |
| if(BuiltinTypes::xsDuration->wxsTypeMatches(type)) |
| prepareComparison(AtomicComparator::Ptr(new AbstractDurationComparator())); |
| else if (BuiltinTypes::xsGYear->wxsTypeMatches(type) || |
| BuiltinTypes::xsGYearMonth->wxsTypeMatches(type) || |
| BuiltinTypes::xsGMonth->wxsTypeMatches(type) || |
| BuiltinTypes::xsGMonthDay->wxsTypeMatches(type) || |
| BuiltinTypes::xsGDay->wxsTypeMatches(type)) |
| prepareComparison(AtomicComparator::Ptr(new AbstractDateTimeComparator())); |
| else |
| prepareComparison(fetchComparator(asItemType, asItemType, context)); |
| |
| return flexibleCompare(operand1, operand2, context); |
| } |
| |
| const SourceLocationReflection *actualReflection() const |
| { |
| return m_sourceReflection; |
| } |
| |
| AtomicComparator::Operator operatorID() const |
| { |
| return m_operator; |
| } |
| |
| private: |
| const SourceLocationReflection *const m_sourceReflection; |
| const AtomicComparator::Operator m_operator; |
| }; |
| |
| bool ComparisonFactory::compare(const AtomicValue::Ptr &operand1, |
| const AtomicComparator::Operator op, |
| const AtomicValue::Ptr &operand2, |
| const SchemaType::Ptr &type, |
| const ReportContext::Ptr &context, |
| const SourceLocationReflection *const sourceLocationReflection) |
| { |
| Q_ASSERT(operand1); |
| Q_ASSERT(operand2); |
| Q_ASSERT(context); |
| Q_ASSERT(sourceLocationReflection); |
| Q_ASSERT(type); |
| Q_ASSERT_X(type->category() == SchemaType::SimpleTypeAtomic, Q_FUNC_INFO, |
| "We can only compare atomic values."); |
| |
| return PerformComparison(sourceLocationReflection, op)(operand1, operand2, type, context); |
| } |
| |
| bool ComparisonFactory::constructAndCompare(const DerivedString<TypeString>::Ptr &operand1, |
| const AtomicComparator::Operator op, |
| const DerivedString<TypeString>::Ptr &operand2, |
| const SchemaType::Ptr &type, |
| const ReportContext::Ptr &context, |
| const SourceLocationReflection *const sourceLocationReflection) |
| { |
| Q_ASSERT(operand1); |
| Q_ASSERT(operand2); |
| Q_ASSERT(context); |
| Q_ASSERT(sourceLocationReflection); |
| Q_ASSERT(type); |
| Q_ASSERT_X(type->category() == SchemaType::SimpleTypeAtomic, Q_FUNC_INFO, |
| "We can only compare atomic values."); |
| |
| const AtomicValue::Ptr value1 = ValueFactory::fromLexical(operand1->stringValue(), type, context, sourceLocationReflection); |
| const AtomicValue::Ptr value2 = ValueFactory::fromLexical(operand2->stringValue(), type, context, sourceLocationReflection); |
| |
| return compare(value1, op, value2, type, context, sourceLocationReflection); |
| } |
| |
| QT_END_NAMESPACE |