Rename dependsOn() in filesDepedingOn() and introduced Snapshot::dependencyTable().

src/libs/cplusplus/CppDocument.cpp

@@ -474,6 +474,11 @@ QSharedPointer<NamespaceBinding> Snapshot::globalNamespaceBinding(Document::Ptr
     return CPlusPlus::bind(doc, *this);
 }
 
+Document::Ptr Snapshot::value(const QString &fileName) const
+{
+    return QMap<QString, Document::Ptr>::value(QDir::cleanPath(fileName));
+}
+
 Snapshot Snapshot::simplified(Document::Ptr doc) const
 {
     Snapshot snapshot;
@@ -496,20 +501,15 @@ void Snapshot::simplified_helper(Document::Ptr doc, Snapshot *snapshot) const
     }
 }
 
-QStringList Snapshot::dependsOn(const QString &fileName) const
+QStringList Snapshot::filesDependingOn(const QString &fileName) const
 {
-    const int n = size();
+    const int N = size();
-
+    QVector<QString> files(N);
-    QVector<QString> files(n);
     QHash<QString, int> fileIndex;
     QHash<int, QList<int> > includes;
+    QVector<QBitArray> includeMap(N);
 
-    QMapIterator<QString, Document::Ptr> it(*this);
+    dependency_helper(files, fileIndex, includes, includeMap);
-    for (int i = 0; it.hasNext(); ++i) {
-        it.next();
-        files[i] = it.key();
-        fileIndex[it.key()] = i;
-    }
 
     int index = fileIndex.value(fileName, -1);
     if (index == -1) {
@@ -517,7 +517,54 @@ QStringList Snapshot::dependsOn(const QString &fileName) const
         return QStringList();
     }
 
-    QVector<QBitArray> includeMap(files.size());
+    QStringList deps;
+    for (int i = 0; i < files.size(); ++i) {
+        const QBitArray &bits = includeMap.at(i);
+
+        if (bits.testBit(index))
+            deps.append(files.at(i));
+    }
+
+    return deps;
+}
+
+QMap<QString, QStringList> Snapshot::dependencyTable() const
+{
+    const int N = size();
+    QVector<QString> files(N);
+    QHash<QString, int> fileIndex;
+    QHash<int, QList<int> > includes;
+    QVector<QBitArray> includeMap(N);
+
+    dependency_helper(files, fileIndex, includes, includeMap);
+
+    QMap<QString, QStringList> depMap;
+
+    for (int index = 0; index < files.size(); ++index) {
+        QStringList deps;
+        for (int i = 0; i < files.size(); ++i) {
+            const QBitArray &bits = includeMap.at(i);
+
+            if (bits.testBit(index))
+                deps.append(files.at(i));
+        }
+        depMap[files.at(index)] = deps;
+    }
+
+    return depMap;
+}
+
+void Snapshot::dependency_helper(QVector<QString> &files,
+                                 QHash<QString, int> &fileIndex,
+                                 QHash<int, QList<int> > &includes,
+                                 QVector<QBitArray> &includeMap) const
+{
+    QMapIterator<QString, Document::Ptr> it(*this);
+    for (int i = 0; it.hasNext(); ++i) {
+        it.next();
+        files[i] = it.key();
+        fileIndex[it.key()] = i;
+    }
 
     for (int i = 0; i < files.size(); ++i) {
         if (Document::Ptr doc = value(files.at(i))) {
@@ -559,19 +606,4 @@ QStringList Snapshot::dependsOn(const QString &fileName) const
             }
         }
     } while (changed);
-
-    QStringList deps;
-    for (int i = 0; i < files.size(); ++i) {
-        const QBitArray &bits = includeMap.at(i);
-
-        if (bits.testBit(index))
-            deps.append(files.at(i));
-    }
-
-    return deps;
-}
-
-Document::Ptr Snapshot::value(const QString &fileName) const
-{
-    return QMap<QString, Document::Ptr>::value(QDir::cleanPath(fileName));
 }

src/libs/cplusplus/CppDocument.h

@@ -37,6 +37,7 @@
 #include <QFileInfo>
 #include <QList>
 #include <QMap>
+#include <QBitArray>
 #include <QSharedPointer>
 #include <QString>
 #include <QStringList>
@@ -338,7 +339,8 @@ public:
 
     QSharedPointer<NamespaceBinding> globalNamespaceBinding(Document::Ptr doc) const;
 
-    QStringList dependsOn(const QString &fileName) const;
+    QStringList filesDependingOn(const QString &fileName) const;
+    QMap<QString, QStringList> dependencyTable() const;
 
     void insert(Document::Ptr doc);
     Document::Ptr value(const QString &fileName) const;
@@ -347,6 +349,10 @@ public:
 
 private:
     void simplified_helper(Document::Ptr doc, Snapshot *snapshot) const;
+    void dependency_helper(QVector<QString> &files,
+                           QHash<QString, int> &fileIndex,
+                           QHash<int, QList<int> > &includes,
+                           QVector<QBitArray> &includeMap) const;
 };
 
 } // end of namespace CPlusPlus

src/plugins/cpptools/cppfindreferences.cpp

@@ -124,7 +124,7 @@ static void find_helper(QFutureInterface<Usage> &future,
                 files.append(doc->fileName());
         }
     } else {
-        files += snapshot.dependsOn(sourceFile);
+        files += snapshot.filesDependingOn(sourceFile);
     }
     files.removeDuplicates();
     //qDebug() << "done in:" << tm.elapsed() << "number of files to parse:" << files.size();