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Fix crash after move to QStringView

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With Qt 5. Fix the bounds checking for midView by copying the complete
logic from Qt QContainerImplHelper::mid.

Fixes: QDS-2806
Task-number: QTCREATORBUG-24098
Change-Id: I0d7d414c159f81a76114b67f55aefbb81f17b034
Reviewed-by: Henning Gründl <henning.gruendl@qt.io>
Reviewed-by: hjk <hjk@qt.io>
This commit is contained in:
Eike Ziller
2020-09-18 10:53:23 +02:00
parent 7363ec8b66
commit f18d24efaa
1 changed files with 9 additions and 2 deletions
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11
src/libs/utils/porting.h
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@@ -66,9 +66,16 @@ inline StringView make_stringview(const QString &s)
inline QStringView midView(const QString &s, int offset, int length)
{
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
if (offset > s.size())
const int size = s.size();
if (offset > size)
return {};
if (offset + length > s.size())
if (offset < 0) {
if (length < 0 || length + offset >= size)
return QStringView(s);
if (length + offset <= 0)
return {};
return QStringView(s).left(length + offset);
} else if (length > size - offset)
return QStringView(s).mid(offset);
return QStringView(s).mid(offset, length);
#else