CppTools: Provide hints about chosen project part for editor document

Parse issues can have multiple reasons (invalid kit, not a project file,
actual parse issue) and we should be able to tell them apart. With this
change, we can distinguish between the fallback project part and a
ambiguous project part.

Follow up changes will use this to display more accurate diagnostics.

Change-Id: Icc8767607cc17dc14d6227b07f34e81ba5525a96
Reviewed-by: David Schulz <david.schulz@qt.io>

1 files changed, 18 insertions, 11 deletions

diff --git a/src/plugins/cpptools/baseeditordocumentparser.cpp b/src/plugins/cpptools/baseeditordocumentparser.cpp
index ca4d16e564..617c61de0a 100644
--- a/src/plugins/cpptools/baseeditordocumentparser.cpp
+++ b/src/plugins/cpptools/baseeditordocumentparser.cpp
@@ -54,6 +54,8 @@ namespace CppTools {
 BaseEditorDocumentParser::BaseEditorDocumentParser(const QString &filePath)
     : m_filePath(filePath)
 {
+    static int meta = qRegisterMetaType<ProjectPartInfo>("CppTools::ProjectPartInfo");
+    Q_UNUSED(meta);
 }
 
 BaseEditorDocumentParser::~BaseEditorDocumentParser()
@@ -102,9 +104,9 @@ void BaseEditorDocumentParser::setState(const State &state)
     m_state = state;
 }
 
-ProjectPart::Ptr BaseEditorDocumentParser::projectPart() const
+ProjectPartInfo BaseEditorDocumentParser::projectPartInfo() const
 {
-    return state().projectPart;
+    return state().projectPartInfo;
 }
 
 BaseEditorDocumentParser::Ptr BaseEditorDocumentParser::get(const QString &filePath)
@@ -117,7 +119,7 @@ BaseEditorDocumentParser::Ptr BaseEditorDocumentParser::get(const QString &fileP
     return BaseEditorDocumentParser::Ptr();
 }
 
-ProjectPart::Ptr BaseEditorDocumentParser::determineProjectPart(
+ProjectPartInfo BaseEditorDocumentParser::determineProjectPart(
         const QString &filePath,
         const Configuration &config,
         const State &state,
@@ -125,7 +127,9 @@ ProjectPart::Ptr BaseEditorDocumentParser::determineProjectPart(
         Language languagePreference,
         bool hasActiveProjectChanged)
 {
-    Internal::ProjectPartChooser chooser;
+    using Internal::ProjectPartChooser;
+
+    ProjectPartChooser chooser;
     chooser.setFallbackProjectPart([](){
         return CppModelManager::instance()->fallbackProjectPart();
     });
@@ -137,13 +141,16 @@ ProjectPart::Ptr BaseEditorDocumentParser::determineProjectPart(
         return CppModelManager::instance()->projectPartFromDependencies(fileName);
     });
 
-    return chooser.choose(filePath,
-                          state.projectPart,
-                          config.manuallySetProjectPart,
-                          config.stickToPreviousProjectPart,
-                          activeProject,
-                          languagePreference,
-                          hasActiveProjectChanged);
+    const ProjectPartInfo chooserResult
+            = chooser.choose(filePath,
+                             state.projectPartInfo.projectPart,
+                             config.manuallySetProjectPart,
+                             config.stickToPreviousProjectPart,
+                             activeProject,
+                             languagePreference,
+                             hasActiveProjectChanged);
+
+    return chooserResult;
 }
 
 } // namespace CppTools