qdoc: QML parser: Fix parsing of function parameters

The parameter name was passed incorrectly as the default value, and
the default value was not retrieved.

Pick-to: 5.15
Fixes: QTBUG-84089
Change-Id: I9f35702b431da3e58a8cb422f0b41475dd99f604
Reviewed-by: Paul Wicking <paul.wicking@qt.io>

1 files changed, 8 insertions, 1 deletions

diff --git a/src/qdoc/qmlvisitor.cpp b/src/qdoc/qmlvisitor.cpp
index d91d3036d..925ac04a5 100644
--- a/src/qdoc/qmlvisitor.cpp
+++ b/src/qdoc/qmlvisitor.cpp
@@ -686,7 +686,14 @@ bool QmlDocVisitor::visit(QQmlJS::AST::FunctionDeclaration *fd)
         if (formals) {
             QQmlJS::AST::FormalParameterList *fp = formals;
             do {
-                parameters.append(QString(), QString(), fp->element->bindingIdentifier.toString());
+                QString defaultValue;
+                auto initializer = fp->element->initializer;
+                if (initializer) {
+                    auto loc = initializer->firstSourceLocation();
+                    defaultValue = document.mid(loc.begin(), loc.length);
+                }
+                parameters.append(QString(), fp->element->bindingIdentifier.toString(),
+                        defaultValue);
                 fp = fp->next;
             } while (fp && fp != formals);
         }