CppTools: Let BaseEditorDocumentParser acquire the mutex

...so derived classes are freed from doing this.

Change-Id: I73f3eca54be14cfd6542a466f0e9c024457bef07
Reviewed-by: Erik Verbruggen <erik.verbruggen@theqtcompany.com>

src/plugins/cpptools/baseeditordocumentparser.cpp

@@ -31,6 +31,7 @@
 #include "baseeditordocumentparser.h"
 #include "baseeditordocumentprocessor.h"
 
+#include "cppworkingcopy.h"
 #include "editordocumenthandle.h"
 
 namespace CppTools {
@@ -44,14 +45,13 @@ namespace CppTools {
     It's meant to be used in the C++ editor to get precise results by using
     the "best" project part for a file.
 
-    Derived classes are expected to implement update() this way:
+    Derived classes are expected to implement updateHelper() this way:
 
     \list
         \li Get a copy of the configuration and the last state.
-        \li Acquire the protected m_updateIsRunning for the duration of update().
         \li Work on the data and do whatever is necessary. At least, update
             the project part with the help of determineProjectPart().
-        \li Ensure the new state is set before update() returns.
+        \li Ensure the new state is set before updateHelper() returns.
     \endlist
 */
 
@@ -81,6 +81,12 @@ void BaseEditorDocumentParser::setConfiguration(const Configuration &configurati
     m_configuration = configuration;
 }
 
+void BaseEditorDocumentParser::update(WorkingCopy workingCopy)
+{
+    QMutexLocker locker(&m_updateIsRunning);
+    updateHelper(workingCopy);
+}
+
 BaseEditorDocumentParser::State BaseEditorDocumentParser::state() const
 {
     QMutexLocker locker(&m_stateAndConfigurationMutex);

src/plugins/cpptools/baseeditordocumentparser.h

@@ -56,11 +56,10 @@ public:
     virtual ~BaseEditorDocumentParser();
 
     QString filePath() const;
-
     Configuration configuration() const;
     void setConfiguration(const Configuration &configuration);
 
-    virtual void update(WorkingCopy workingCopy) = 0;
+    void update(WorkingCopy workingCopy);
 
     ProjectPart::Ptr projectPart() const;
 
@@ -69,7 +68,6 @@ protected:
         QByteArray editorDefines;
         ProjectPart::Ptr projectPart;
     };
-
     State state() const;
     void setState(const State &state);
 
@@ -77,14 +75,15 @@ protected:
                                                  const Configuration &config,
                                                  const State &state);
 
-    mutable QMutex m_updateIsRunning;
     mutable QMutex m_stateAndConfigurationMutex;
 
 private:
-    const QString m_filePath;
+    virtual void updateHelper(WorkingCopy workingCopy) = 0;
 
+    const QString m_filePath;
     Configuration m_configuration;
     State m_state;
+    mutable QMutex m_updateIsRunning;
 };
 
 } // namespace CppTools

src/plugins/cpptools/builtineditordocumentparser.cpp

@@ -44,10 +44,8 @@ BuiltinEditorDocumentParser::BuiltinEditorDocumentParser(const QString &filePath
     qRegisterMetaType<CPlusPlus::Snapshot>("CPlusPlus::Snapshot");
 }
 
-void BuiltinEditorDocumentParser::update(WorkingCopy workingCopy)
+void BuiltinEditorDocumentParser::updateHelper(WorkingCopy workingCopy)
 {
-    QMutexLocker locker(&m_updateIsRunning);
-
     const Configuration baseConfig = configuration();
     const bool releaseSourceAndAST_ = releaseSourceAndAST();
 

src/plugins/cpptools/builtineditordocumentparser.h

@@ -51,8 +51,6 @@ public:
     bool releaseSourceAndAST() const;
     void setReleaseSourceAndAST(bool release);
 
-    void update(WorkingCopy workingCopy) override;
-
     CPlusPlus::Document::Ptr document() const;
     CPlusPlus::Snapshot snapshot() const;
     ProjectPart::HeaderPaths headerPaths() const;
@@ -66,6 +64,7 @@ public:
     static BuiltinEditorDocumentParser *get(const QString &filePath);
 
 private:
+    void updateHelper(WorkingCopy workingCopy) override;
     void addFileAndDependencies(CPlusPlus::Snapshot *snapshot,
                                 QSet<Utils::FileName> *toRemove,
                                 const Utils::FileName &fileName) const;
@@ -80,7 +79,6 @@ private:
         CPlusPlus::Snapshot snapshot;
         bool forceSnapshotInvalidation = false;
     };
-
     ExtraState extraState() const;
     void setExtraState(const ExtraState &extraState);