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39
40#include "qboolean_p.h"
41#include "qcommonvalues_p.h"
42#include "qdynamiccontext_p.h"
43
44#include "qexternalvariableloader_p.h"
45
46QT_BEGIN_NAMESPACE
47
48using namespace QPatternist;
49
50ExternalVariableLoader::~ExternalVariableLoader()
51{
52}
53
54
55SequenceType::Ptr ExternalVariableLoader::announceExternalVariable(const QXmlName name,
56 const SequenceType::Ptr &declaredType)
57{
58 Q_ASSERT(!name.isNull());
59 Q_ASSERT(declaredType);
60 Q_UNUSED(name); /* Needed when compiling in release mode. */
61 Q_UNUSED(declaredType); /* Needed when compiling in release mode. */
62
63 return SequenceType::Ptr();
64}
65
66Item::Iterator::Ptr ExternalVariableLoader::evaluateSequence(const QXmlName name,
67 const DynamicContext::Ptr &context)
68{
69 Q_ASSERT(!name.isNull());
70 const Item item(evaluateSingleton(name, context));
71
72 if(item)
73 return makeSingletonIterator(item);
74 else
75 return CommonValues::emptyIterator;
76}
77
78Item ExternalVariableLoader::evaluateSingleton(const QXmlName name,
79 const DynamicContext::Ptr &context)
80{
81 Q_ASSERT(!name.isNull());
82 return Boolean::fromValue(value: evaluateEBV(name, context));
83}
84
85bool ExternalVariableLoader::evaluateEBV(const QXmlName name,
86 const DynamicContext::Ptr &context)
87{
88 Q_ASSERT(!name.isNull());
89 return Boolean::evaluateEBV(e: evaluateSequence(name, context), context);
90}
91
92QT_END_NAMESPACE
93

source code of qtxmlpatterns/src/xmlpatterns/expr/qexternalvariableloader.cpp