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6** This file is part of the QtXmlPatterns module of the Qt Toolkit.
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39
40#include "qcommonsequencetypes_p.h"
41#include "qpatternistlocale_p.h"
42#include "qqnamevalue_p.h"
43#include "qatomicstring_p.h"
44
45#include "qerrorfn_p.h"
46
47QT_BEGIN_NAMESPACE
48
49using namespace QPatternist;
50
51Item ErrorFN::evaluateSingleton(const DynamicContext::Ptr &context) const
52{
53 QString msg;
54
55 switch(m_operands.count())
56 {
57 case 0: /* No args. */
58 {
59 context->error(message: QtXmlPatterns::tr(sourceText: "%1 was called.").arg(a: formatFunction(np: context->namePool(), func: signature())),
60 errorCode: ReportContext::FOER0000, reflection: this);
61 return Item();
62 }
63 case 3:
64 /* Fallthrough, we don't use the 'error object' param. */
65 Q_FALLTHROUGH();
66 case 2:
67 msg = m_operands.at(i: 1)->evaluateSingleton(context).stringValue();
68 Q_FALLTHROUGH();
69 case 1:
70 {
71 const QNameValue::Ptr qName(m_operands.first()->evaluateSingleton(context).as<QNameValue>());
72
73 if(qName)
74 context->error(message: msg, qName: qName->qName(), r: this);
75 else
76 context->error(message: msg, errorCode: ReportContext::FOER0000, reflection: this);
77
78 return Item();
79 }
80 default:
81 {
82 Q_ASSERT_X(false, Q_FUNC_INFO,
83 "Invalid number of arguments passed to fn:error.");
84 return Item();
85 }
86 }
87}
88
89FunctionSignature::Ptr ErrorFN::signature() const
90{
91 const FunctionSignature::Ptr e(FunctionCall::signature());
92
93 if(m_operands.count() != 1)
94 return e;
95
96 FunctionSignature::Ptr nev(FunctionSignature::Ptr(new FunctionSignature(e->name(),
97 e->minimumArguments(),
98 e->maximumArguments(),
99 e->returnType(),
100 e->properties())));
101 const FunctionArgument::List args(e->arguments());
102 FunctionArgument::List nargs;
103 const QXmlName argName(StandardNamespaces::empty, StandardLocalNames::error);
104 nargs.append(t: FunctionArgument::Ptr(new FunctionArgument(argName, CommonSequenceTypes::ExactlyOneQName)));
105 nargs.append(t: args[1]);
106 nargs.append(t: args[2]);
107 nev->setArguments(nargs);
108
109 return nev;
110}
111
112QT_END_NAMESPACE
113

source code of qtxmlpatterns/src/xmlpatterns/functions/qerrorfn.cpp