qmake: skip empty parts when splitting strings in some more places

... and make it explicit where we can't do that for semantical or
backwards compat reasons.

most urgently, this fixes an assertion failure when $QMAKEFEATURES
contains empty paths (e.g., due to a trailing semicolon).

notable observation: QByteArray::split() has no argument for the split
behavior (it always keeps empty parts).

Task-number: QTBUG-47325
Change-Id: I72d4b2e154a2ed1802cfa98fb4a5211a68e43231
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
This commit is contained in:
Oswald Buddenhagen 2018-05-29 16:36:53 +02:00
parent 94f249977c
commit 7c87ffff9a
3 changed files with 10 additions and 6 deletions

View File

@ -738,7 +738,8 @@ QMakeEvaluator::VisitReturn QMakeEvaluator::evaluateBuiltinExpand(
const QString &sep = (args.count() == 2) ? args.at(1).toQString(m_tmp1) : statics.field_sep;
const auto vars = values(map(args.at(0)));
for (const ProString &var : vars) {
const auto splits = var.toQStringRef().split(sep);
// FIXME: this is inconsistent with the "there are no empty strings" dogma.
const auto splits = var.toQStringRef().split(sep, QString::KeepEmptyParts);
for (const auto &splt : splits)
ret << ProString(splt).setSource(var);
}
@ -1445,7 +1446,8 @@ QMakeEvaluator::VisitReturn QMakeEvaluator::evaluateBuiltinConditional(
}
if (args.count() == 1)
return returnBool(isActiveConfig(args.at(0).toQStringRef()));
const auto mutuals = args.at(1).toQStringRef().split(QLatin1Char('|'));
const auto mutuals = args.at(1).toQStringRef().split(QLatin1Char('|'),
QString::SkipEmptyParts);
const ProStringList &configs = values(statics.strCONFIG);
for (int i = configs.size() - 1; i >= 0; i--) {
@ -1477,7 +1479,8 @@ QMakeEvaluator::VisitReturn QMakeEvaluator::evaluateBuiltinConditional(
return ReturnTrue;
}
} else {
const auto mutuals = args.at(2).toQStringRef().split(QLatin1Char('|'));
const auto mutuals = args.at(2).toQStringRef().split(QLatin1Char('|'),
QString::SkipEmptyParts);
for (int i = l.size() - 1; i >= 0; i--) {
const ProString val = l[i];
for (int mut = 0; mut < mutuals.count(); mut++) {

View File

@ -297,6 +297,7 @@ ProStringList QMakeEvaluator::split_value_list(const QStringRef &vals, int sourc
case '\'':
if (!quote)
quote = unicode;
// FIXME: this is inconsistent with the "there are no empty strings" dogma.
hadWord = true;
break;
case ' ':
@ -879,7 +880,7 @@ QMakeEvaluator::VisitReturn QMakeEvaluator::visitProVariable(
return ReturnTrue;
}
QChar sep = val.at(1);
auto func = val.split(sep);
auto func = val.split(sep, QString::KeepEmptyParts);
if (func.count() < 3 || func.count() > 4) {
evalError(fL1S("The s/// function expects 3 or 4 arguments."));
return ReturnTrue;
@ -1018,7 +1019,7 @@ static ProString msvcArchitecture(const QString &vcInstallDir, const QString &pa
QString vcBinDir = vcInstallDir;
if (vcBinDir.endsWith(QLatin1Char('\\')))
vcBinDir.chop(1);
const auto dirs = pathVar.split(QLatin1Char(';'));
const auto dirs = pathVar.split(QLatin1Char(';'), QString::SkipEmptyParts);
for (const QString &dir : dirs) {
if (!dir.startsWith(vcBinDir, Qt::CaseInsensitive))
continue;

View File

@ -261,7 +261,7 @@ QStringList QMakeGlobals::splitPathList(const QString &val) const
QStringList ret;
if (!val.isEmpty()) {
QString cwd(QDir::currentPath());
const QStringList vals = val.split(dirlist_sep);
const QStringList vals = val.split(dirlist_sep, QString::SkipEmptyParts);
ret.reserve(vals.length());
for (const QString &it : vals)
ret << IoUtils::resolvePath(cwd, it);