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#include "qstringbuilder.h"
#include <QDebug>
#include <QString>
#include <qtest.h>
#define COMPARE(a, b) QCOMPARE(a, b)
//#define COMPARE(a, b)
#define SEP(s) qDebug() << "\n\n-------- " s " ---------";
#define L(s) QLatin1String(s)
const char l1literal[] = "some string literal";
class tst_qstringbuilder : public QObject
{
Q_OBJECT
public:
tst_qstringbuilder()
:
l1string(l1literal),
ba(l1literal),
string(l1string),
stringref(&string, 2, 10),
achar('c')
{}
public:
enum { N = 10000 };
int run_traditional()
{
int s = 0;
for (int i = 0; i < N; ++i) {
#if 0
s += QString(l1string + l1string).size();
s += QString(l1string + l1string + l1string).size();
s += QString(l1string + l1string + l1string + l1string).size();
s += QString(l1string + l1string + l1string + l1string + l1string).size();
#endif
s += QString(achar + l1string + achar).size();
}
return s;
}
int run_builder()
{
int s = 0;
for (int i = 0; i < N; ++i) {
#if 0
s += QString(l1literal % l1literal).size();
s += QString(l1literal % l1literal % l1literal).size();
s += QString(l1literal % l1literal % l1literal % l1literal).size();
s += QString(l1literal % l1literal % l1literal % l1literal % l1literal).size();
#endif
s += QString(achar % l1literal % achar).size();
}
return s;
}
private slots:
void separator_0() {
qDebug() << "\nIn each block the QStringBuilder based result appear first, "
"QStringBased second.\n";
}
void separator_1() { SEP("literal + literal (builder first)"); }
void b_2_l1literal() {
QBENCHMARK { r = l1string % l1literal; }
COMPARE(r, l1string + l1string);
}
void s_2_l1string() {
QBENCHMARK { r = l1string + l1string; }
COMPARE(r, QString(l1string % l1literal));
}
void separator_2() { SEP("2 strings"); }
void b_2_string() {
QBENCHMARK { r = string % string; }
COMPARE(r, string + string);
}
void s_2_string() {
QBENCHMARK { r = string + string; }
COMPARE(r, QString(string % string));
}
void separator_2c() { SEP("2 string refs"); }
void b_2_stringref() {
QBENCHMARK { r = stringref % stringref; }
COMPARE(r, stringref.toString() + stringref.toString());
}
void s_2_stringref() {
QBENCHMARK { r = stringref.toString() + stringref.toString(); }
COMPARE(r, QString(stringref % stringref));
}
void separator_2b() { SEP("3 strings"); }
void b_3_string() {
QBENCHMARK { r = string % string % string; }
COMPARE(r, string + string + string);
}
void s_3_string() {
QBENCHMARK { r = string + string + string; }
COMPARE(r, QString(string % string % string));
}
void separator_2a() { SEP("string + literal (builder first)"); }
void b_string_l1literal() {
QBENCHMARK { r = string % l1literal; }
COMPARE(r, string + l1string);
}
void b_string_l1string() {
QBENCHMARK { r = string % l1string; }
COMPARE(r, string + l1string);
}
void s_string_l1literal() {
QBENCHMARK { r = string + l1string; }
COMPARE(r, QString(string % l1literal));
}
void s_string_l1string() {
QBENCHMARK { r = string + l1string; }
COMPARE(r, QString(string % l1literal));
}
void separator_3() { SEP("3 literals"); }
void b_3_l1literal() {
QBENCHMARK { r = l1string % l1literal % l1literal; }
COMPARE(r, l1string + l1string + l1string);
}
void s_3_l1string() {
QBENCHMARK { r = l1string + l1string + l1string; }
COMPARE(r, QString(l1string % l1literal % l1literal));
}
void separator_4() { SEP("4 literals"); }
void b_4_l1literal() {
QBENCHMARK { r = l1string % l1literal % l1literal % l1literal; }
COMPARE(r, l1string + l1string + l1string + l1string);
}
void s_4_l1string() {
QBENCHMARK { r = l1string + l1string + l1string + l1string; }
COMPARE(r, QString(l1string % l1literal % l1literal % l1literal));
}
void separator_5() { SEP("5 literals"); }
void b_5_l1literal() {
QBENCHMARK { r = l1string % l1literal % l1literal % l1literal %l1literal; }
COMPARE(r, l1string + l1string + l1string + l1string + l1string);
}
void s_5_l1string() {
QBENCHMARK { r = l1string + l1string + l1string + l1string + l1string; }
COMPARE(r, QString(l1string % l1literal % l1literal % l1literal % l1literal));
}
void separator_6() { SEP("4 chars"); }
void b_string_4_char() {
QBENCHMARK { r = string + achar + achar + achar + achar; }
COMPARE(r, QString(string % achar % achar % achar % achar));
}
void s_string_4_char() {
QBENCHMARK { r = string + achar + achar + achar + achar; }
COMPARE(r, QString(string % achar % achar % achar % achar));
}
void separator_7() { SEP("char + string + char"); }
void b_char_string_char() {
QBENCHMARK { r = achar + string + achar; }
COMPARE(r, QString(achar % string % achar));
}
void s_char_string_char() {
QBENCHMARK { r = achar + string + achar; }
COMPARE(r, QString(achar % string % achar));
}
void separator_8() { SEP("string.arg"); }
void b_string_arg() {
const QString pattern = l1string + "%1" + l1string;
QBENCHMARK { r = l1literal % string % l1literal; }
COMPARE(r, l1string + string + l1string);
}
void s_string_arg() {
const QString pattern = l1string + "%1" + l1string;
QBENCHMARK { r = pattern.arg(string); }
COMPARE(r, l1string + string + l1string);
}
void s_bytearray_arg() {
QByteArray result;
QBENCHMARK { result = ba + ba + ba; }
}
void separator_9() { SEP("QString::reserve()"); }
void b_reserve() {
QBENCHMARK {
r.clear();
r = string % string % string % string;
}
COMPARE(r, string + string + string + string);
}
void b_reserve_lit() {
QBENCHMARK {
r.clear();
r = string % l1literal % string % string;
}
COMPARE(r, string + string + string + string);
}
void s_reserve() {
QBENCHMARK {
r.clear();
r.reserve(string.size() + string.size() + string.size() + string.size());
r += string;
r += string;
r += string;
r += string;
}
COMPARE(r, string + string + string + string);
}
void s_reserve_lit() {
QBENCHMARK {
r.clear();
//r.reserve(string.size() + qstrlen(l1string.latin1())
// + string.size() + string.size());
r.reserve(1024);
r += string;
r += l1string;
r += string;
r += string;
}
COMPARE(r, string + string + string + string);
}
private:
const QLatin1String l1string;
const QByteArray ba;
const QString string;
const QStringRef stringref;
const QLatin1Char achar;
QString r;
};
//void operator%(QString, int) {}
int main(int argc, char *argv[])
{
42 % 3; // Sanity test, should always work.
//QString("x") % 2; // Sanity test, should only compile when the
// operator%(QString, int) is visible.
if (argc == 2 && (argv[1] == L("--run-builder") || argv[1] == L("-b"))) {
tst_qstringbuilder test;
return test.run_builder();
}
if (argc == 2 && (argv[1] == L("--run-traditional") || argv[1] == L("-t"))) {
tst_qstringbuilder test;
return test.run_traditional();
}
if (argc == 1) {
QCoreApplication app(argc, argv);
QStringList args = app.arguments();
tst_qstringbuilder test;
return QTest::qExec(&test, argc, argv);
}
qDebug() << "Usage: " << argv[0] << " [--run-builder|-r|--run-traditional|-t]";
}
#include "main.moc"
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