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50
51#include "nullconverter.h"
52
53static NullConverter nullConverter;
54Converter* Converter::null = &nullConverter;
55
56QString NullConverter::name()
57{
58 return QLatin1String("null");
59}
60
61Converter::Direction NullConverter::directions()
62{
63 return Out;
64}
65
66Converter::Options NullConverter::outputOptions()
67{
68 return SupportsArbitraryMapKeys;
69}
70
71const char *NullConverter::optionsHelp()
72{
73 return nullptr;
74}
75
76bool NullConverter::probeFile(QIODevice *f)
77{
78 Q_UNUSED(f);
79 return false;
80}
81
82QVariant NullConverter::loadFile(QIODevice *f, Converter *&outputConverter)
83{
84 Q_UNUSED(f);
85 Q_UNUSED(outputConverter);
86 outputConverter = this;
87 return QVariant();
88}
89
90void NullConverter::saveFile(QIODevice *f, const QVariant &contents, const QStringList &options)
91{
92 if (!options.isEmpty()) {
93 fprintf(stderr, format: "Unknown option '%s' to null output. This format has no options.\n", qPrintable(options.first()));
94 exit(EXIT_FAILURE);
95 }
96
97 Q_UNUSED(f);
98 Q_UNUSED(contents);
99}
100

source code of qtbase/examples/corelib/serialization/convert/nullconverter.cpp