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Fix lang_auto boundaries check. (thanks Randl)

This commit is contained in:
John Preston 2018-11-02 16:01:34 +04:00
parent 78da810114
commit 27d58e1e2a
1 changed files with 11 additions and 5 deletions
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16
Telegram/SourceFiles/codegen/lang/generator.cpp
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@ -341,7 +341,7 @@ void Generator::writeSetSearch(const std::set<QString, std::greater<QString>> &s
UpcomingIf,
};
auto checkTypes = QVector<UsedCheckType>();
auto checkLengthHistory = QVector<int>(1, 0);
auto checkLengthHistory = QVector<int>();
auto chars = QString();
auto tabsUsed = 1;
@ -354,7 +354,6 @@ void Generator::writeSetSearch(const std::set<QString, std::greater<QString>> &s
auto wasType = checkTypes.back();
chars.resize(chars.size() - 1);
checkTypes.pop_back();
checkLengthHistory.pop_back();
if (wasType == UsedCheckType::Switch || wasType == UsedCheckType::If) {
--tabsUsed;
if (wasType == UsedCheckType::Switch) {
@ -362,6 +361,7 @@ void Generator::writeSetSearch(const std::set<QString, std::greater<QString>> &s
}
if ((!chars.isEmpty() && key.midRef(0, chars.size()) != chars) || key == chars) {
source_->stream() << tabs(tabsUsed) << "}\n";
checkLengthHistory.pop_back();
}
}
}
@ -422,13 +422,20 @@ void Generator::writeSetSearch(const std::set<QString, std::greater<QString>> &s
}
}
auto usedIfForCheck = !weContinueOldSwitch && (usedIfForCheckCount > 0);
const auto checkedLength = checkLengthHistory.isEmpty()
? 0
: checkLengthHistory.back();
const auto requiredLength = qMax(
minimalLengthCheck,
checkedLength);
auto checkLengthCondition = QString();
if (weContinueOldSwitch) {
weContinueOldSwitch = false;
} else {
checkLengthCondition = (minimalLengthCheck > checkLengthHistory.back()) ? ("size >= " + QString::number(minimalLengthCheck)) : QString();
checkLengthCondition = (requiredLength > checkedLength) ? ("size >= " + QString::number(requiredLength)) : QString();
if (!usedIfForCheck) {
source_->stream() << tabs(tabsUsed) << (checkLengthCondition.isEmpty() ? QString() : ("if (" + checkLengthCondition + ") ")) << "switch (data[" << checking << "]) {\n";
checkLengthHistory.push_back(requiredLength);
}
}
if (usedIfForCheck) {
@ -442,11 +449,11 @@ void Generator::writeSetSearch(const std::set<QString, std::greater<QString>> &s
conditions.push_front(checkLengthCondition);
}
source_->stream() << tabs(tabsUsed) << "if (" << conditions.join(" && ") << ") {\n";
checkLengthHistory.push_back(requiredLength);
checkTypes.push_back(UsedCheckType::If);
for (auto i = 1; i != usedIfForCheckCount; ++i) {
checkTypes.push_back(UsedCheckType::UpcomingIf);
chars.push_back(keyChar);
checkLengthHistory.push_back(qMax(minimalLengthCheck, checkLengthHistory.back()));
keyChar = name[checking + i];
}
} else {
@ -455,7 +462,6 @@ void Generator::writeSetSearch(const std::set<QString, std::greater<QString>> &s
}
++tabsUsed;
chars.push_back(keyChar);
checkLengthHistory.push_back(qMax(minimalLengthCheck, checkLengthHistory.back()));
}
source_->stream() << tabs(tabsUsed) << "return (size == " << chars.size() << ") ? " << computeResult(name) << " : " << invalidResult << ";\n";
}