qdoc: qdoc was confused by namespace and module with same name

When qdoc searched for QtConncurrent::blockingFilter(),
it found the module node for QtConcurrent instead of the
namespace. This was because qdoc wasn't given specific
enough instructions on how to perform the search. Now
it searches for the namespace first, then the C++ class,
then the module.

Task-number: QTBUG-31535
Change-Id: I4f8aec503903508789738f2a77c76f47a3e80a93
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>

1 files changed, 15 insertions, 34 deletions

diff --git a/src/tools/qdoc/cppcodeparser.cpp b/src/tools/qdoc/cppcodeparser.cpp
index 41fe2f775c..5c25eeedc4 100644
--- a/src/tools/qdoc/cppcodeparser.cpp
+++ b/src/tools/qdoc/cppcodeparser.cpp
@@ -207,10 +207,10 @@ void CppCodeParser::parseSourceFile(const Location& location, const QString& fil
     readToken();
 
     /*
-      The set of active namespaces is cleared before parsing
+      The set of open namespaces is cleared before parsing
       each source file. The word "source" here means cpp file.
      */
-    activeNamespaces_.clear();
+    qdb_->clearOpenNamespaces();
 
     matchDocsAndStuff();
     in.close();
@@ -323,21 +323,18 @@ Node* CppCodeParser::processTopicCommand(const Doc& doc,
             doc.startLocation().warning(tr("Invalid syntax in '\\%1'").arg(COMMAND_FN));
         }
         else {
-            if (!activeNamespaces_.isEmpty()) {
-                foreach (const QString& usedNamespace_, activeNamespaces_) {
-                    QStringList newPath = usedNamespace_.split("::") + parentPath;
-                    func = qdb_->findFunctionNode(newPath, clone);
-                    if (func)
-                        break;
-                }
-            }
-            // Search the root namespace if no match was found.
-            if (func == 0)
+            func = qdb_->findNodeInOpenNamespace(parentPath, clone);
+            /*
+              Search the root namespace if no match was found.
+            */
+            if (func == 0) {
                 func = qdb_->findFunctionNode(parentPath, clone);
+            }
 
             if (func == 0) {
-                if (parentPath.isEmpty() && !lastPath_.isEmpty())
+                if (parentPath.isEmpty() && !lastPath_.isEmpty()) {
                     func = qdb_->findFunctionNode(lastPath_, clone);
+                }
                 if (func == 0) {
                     doc.location().warning(tr("Cannot find '%1' in '\\%2' %3")
                                            .arg(clone->name() + "(...)")
@@ -426,16 +423,7 @@ Node* CppCodeParser::processTopicCommand(const Doc& doc,
           C++ namespace, search for it first in all the known
           C++ namespaces.
          */
-        if (!activeNamespaces_.isEmpty()) {
-            foreach (const QString& usedNamespace_, activeNamespaces_) {
-                QStringList newPath = usedNamespace_.split("::") + path;
-                node = qdb_->findNodeByNameAndType(newPath, type, subtype);
-                if (node) {
-                    path = newPath;
-                    break;
-                }
-            }
-        }
+        node = qdb_->findNodeInOpenNamespace(path, type, subtype);
 
         /*
           If the node was not found in a C++ namespace, search
@@ -458,7 +446,7 @@ Node* CppCodeParser::processTopicCommand(const Doc& doc,
             if (path.size() > 1) {
                 path.pop_back();
                 QString ns = path.join("::");
-                activeNamespaces_.insert(ns);
+                qdb_->insertOpenNamespace(ns);
             }
         }
         return node;
@@ -1718,7 +1706,7 @@ bool CppCodeParser::matchUsingDecl()
     /*
         So far, so good. We have 'using namespace Foo;'.
     */
-    activeNamespaces_.insert(name);
+    qdb_->insertOpenNamespace(name);
     return true;
 }
 
@@ -2125,13 +2113,7 @@ bool CppCodeParser::matchDocsAndStuff()
                 FunctionNode *func = 0;
 
                 if (matchFunctionDecl(0, &parentPath, &clone, QString(), extra)) {
-                    foreach (const QString& usedNamespace_, activeNamespaces_) {
-                        QStringList newPath = usedNamespace_.split("::") + parentPath;
-                        func = qdb_->findFunctionNode(newPath, clone);
-                        if (func) {
-                            break;
-                        }
-                    }
+                    func = qdb_->findNodeInOpenNamespace(parentPath, clone);
                     if (func == 0)
                         func = qdb_->findFunctionNode(parentPath, clone);
 
@@ -2256,9 +2238,8 @@ bool CppCodeParser::makeFunctionNode(const QString& signature,
     Tokenizer* outerTokenizer = tokenizer;
     int outerTok = tok;
 
-    Location loc;
     QByteArray latin1 = signature.toLatin1();
-    Tokenizer stringTokenizer(loc, latin1);
+    Tokenizer stringTokenizer(location(), latin1);
     stringTokenizer.setParsingFnOrMacro(true);
     tokenizer = &stringTokenizer;
     readToken();