CPlusPlus: Categorize "Find Usages" results

That is, find out whether a certain access was a read, a write, a
declaration or something else, and report the result to upper layers.
Follow-up patches can make this information visible to users.

Task-number: QTCREATORBUG-12734
Task-number: QTCREATORBUG-19373
Change-Id: Iee79e39dd1eb5a986a7e27846991e0e01b2c3a2f
Reviewed-by: Christian Stenger <christian.stenger@qt.io>

1 files changed, 6 insertions, 3 deletions

diff --git a/src/libs/cplusplus/FindUsages.h b/src/libs/cplusplus/FindUsages.h
index e0b37b12a8..a0e1130c15 100644
--- a/src/libs/cplusplus/FindUsages.h
+++ b/src/libs/cplusplus/FindUsages.h
@@ -39,13 +39,15 @@ namespace CPlusPlus {
 class CPLUSPLUS_EXPORT Usage
 {
 public:
+    enum class Type { Declaration, Read, Write, WritableRef, Other };
+
     Usage() = default;
-    Usage(const Utils::FilePath &path, const QString &lineText, int line, int col, int len)
-        : path(path), lineText(lineText), line(line), col(col), len(len) {}
+    Usage(const Utils::FilePath &path, const QString &lineText, Type t, int line, int col, int len)
+        : path(path), lineText(lineText), type(t), line(line), col(col), len(len) {}
 
-public:
     Utils::FilePath path;
     QString lineText;
+    Type type = Type::Other;
     int line = 0;
     int col = 0;
     int len = 0;
@@ -71,6 +73,7 @@ protected:
 
     void reportResult(unsigned tokenIndex, const Name *name, Scope *scope = nullptr);
     void reportResult(unsigned tokenIndex, const QList<LookupItem> &candidates);
+    Usage::Type getType(int line, int column, int tokenIndex);
 
     bool checkCandidates(const QList<LookupItem> &candidates) const;
     void checkExpression(unsigned startToken, unsigned endToken, Scope *scope = nullptr);