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authorOswald Buddenhagen <oswald.buddenhagen@nokia.com>2009-11-04 09:48:20 (GMT)
committerOswald Buddenhagen <oswald.buddenhagen@nokia.com>2009-11-04 16:16:46 (GMT)
commit21f0f9157802f011bb02b96fd79057084039ae2b (patch)
treea218a432c5fb28a7029703657c112f152c6186df /tools/linguist
parentdf12ef0e1fa327103b09e9a817d83b8c8d3035d7 (diff)
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introduce delayed resolution of aliases
this has two effects: - using-declarations which use forward-declared classes work without collecting the forward declarations, as the resolution happens at a place where the class definition must have been encountered already - it should be a bit faster
Diffstat (limited to 'tools/linguist')
-rw-r--r--tools/linguist/lupdate/cpp.cpp57
1 files changed, 41 insertions, 16 deletions
diff --git a/tools/linguist/lupdate/cpp.cpp b/tools/linguist/lupdate/cpp.cpp
index 5ef7099..beaf246 100644
--- a/tools/linguist/lupdate/cpp.cpp
+++ b/tools/linguist/lupdate/cpp.cpp
@@ -261,11 +261,14 @@ private:
bool qualifyOneCallbackUsing(const Namespace *ns, void *context) const;
bool qualifyOne(const NamespaceList &namespaces, int nsCnt, const HashString &segment,
NamespaceList *resolved) const;
- bool fullyQualify(const NamespaceList &namespaces, const QList<HashString> &segments,
- bool isDeclaration,
+ bool fullyQualify(const NamespaceList &namespaces, int nsCnt,
+ const QList<HashString> &segments, bool isDeclaration,
NamespaceList *resolved, QStringList *unresolved) const;
- bool fullyQualify(const NamespaceList &namespaces, const QString &segments,
- bool isDeclaration,
+ bool fullyQualify(const NamespaceList &namespaces,
+ const QList<HashString> &segments, bool isDeclaration,
+ NamespaceList *resolved, QStringList *unresolved) const;
+ bool fullyQualify(const NamespaceList &namespaces,
+ const QString &segments, bool isDeclaration,
NamespaceList *resolved, QStringList *unresolved) const;
bool findNamespaceCallback(const Namespace *ns, void *context) const;
const Namespace *findNamespace(const NamespaceList &namespaces, int nsCount = -1) const;
@@ -1057,7 +1060,18 @@ bool CppParser::qualifyOneCallbackOwn(const Namespace *ns, void *context) const
}
QHash<HashString, NamespaceList>::ConstIterator nsai = ns->aliases.constFind(data->segment);
if (nsai != ns->aliases.constEnd()) {
- *data->resolved = *nsai;
+ const NamespaceList &nsl = *nsai;
+ if (nsl.last().value().isEmpty()) { // Delayed alias resolution
+ NamespaceList &nslIn = *const_cast<NamespaceList *>(&nsl);
+ nslIn.removeLast();
+ NamespaceList nslOut;
+ if (!fullyQualify(data->namespaces, data->nsCount, nslIn, false, &nslOut, 0)) {
+ const_cast<Namespace *>(ns)->aliases.remove(data->segment);
+ return false;
+ }
+ nslIn = nslOut;
+ }
+ *data->resolved = nsl;
return true;
}
return false;
@@ -1086,8 +1100,8 @@ bool CppParser::qualifyOne(const NamespaceList &namespaces, int nsCnt, const Has
return visitNamespace(namespaces, nsCnt, &CppParser::qualifyOneCallbackUsing, &data);
}
-bool CppParser::fullyQualify(const NamespaceList &namespaces, const QList<HashString> &segments,
- bool isDeclaration,
+bool CppParser::fullyQualify(const NamespaceList &namespaces, int nsCnt,
+ const QList<HashString> &segments, bool isDeclaration,
NamespaceList *resolved, QStringList *unresolved) const
{
int nsIdx;
@@ -1104,7 +1118,7 @@ bool CppParser::fullyQualify(const NamespaceList &namespaces, const QList<HashSt
nsIdx = 0;
} else {
initSegIdx = 0;
- nsIdx = namespaces.count() - 1;
+ nsIdx = nsCnt - 1;
}
do {
@@ -1127,8 +1141,16 @@ bool CppParser::fullyQualify(const NamespaceList &namespaces, const QList<HashSt
return false;
}
-bool CppParser::fullyQualify(const NamespaceList &namespaces, const QString &quali,
- bool isDeclaration,
+bool CppParser::fullyQualify(const NamespaceList &namespaces,
+ const QList<HashString> &segments, bool isDeclaration,
+ NamespaceList *resolved, QStringList *unresolved) const
+{
+ return fullyQualify(namespaces, namespaces.count(),
+ segments, isDeclaration, resolved, unresolved);
+}
+
+bool CppParser::fullyQualify(const NamespaceList &namespaces,
+ const QString &quali, bool isDeclaration,
NamespaceList *resolved, QStringList *unresolved) const
{
static QString strColons(QLatin1String("::"));
@@ -1638,9 +1660,8 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
}
if (fullName.isEmpty())
break;
- NamespaceList nsl;
- if (fullyQualify(namespaces, fullName, false, &nsl, 0))
- modifyNamespace(&namespaces)->aliases[ns] = nsl;
+ fullName.append(HashString(QString())); // Mark as unresolved
+ modifyNamespace(&namespaces)->aliases[ns] = fullName;
}
} else if (yyTok == Tok_LeftBrace) {
// Anonymous namespace
@@ -1681,9 +1702,13 @@ void CppParser::parseInternal(ConversionData &cd, QSet<QString> &inclusions)
}
if (fullName.isEmpty())
break;
- NamespaceList nsl;
- if (fullyQualify(namespaces, fullName, false, &nsl, 0))
- modifyNamespace(&namespaces)->aliases[nsl.last()] = nsl;
+ // using-declarations cannot rename classes, so the last element of
+ // fullName is already the resolved name we actually want.
+ // As we do no resolution here, we'll collect useless usings of data
+ // members and methods as well. This is no big deal.
+ HashString &ns = fullName.last();
+ fullName.append(HashString(QString())); // Mark as unresolved
+ modifyNamespace(&namespaces)->aliases[ns] = fullName;
}
break;
case Tok_tr: