3 files changed, 16 insertions, 0 deletions
diff --git a/src/qmlcompiler/qqmljslinter.cpp b/src/qmlcompiler/qqmljslinter.cpp
index 561190a2db..0a90376296 100644
--- a/src/qmlcompiler/qqmljslinter.cpp
+++ b/src/qmlcompiler/qqmljslinter.cpp
@@ -56,6 +56,18 @@ public:
                       declarationLocation, true, true, {}, {}, accessLocation.startLine);
     }
 
+    void reportFunctionUsedBeforeDeclaration(const QString &name, const QString &fileName,
+                                             QQmlJS::SourceLocation declarationLocation,
+                                             QQmlJS::SourceLocation accessLocation) override
+    {
+        Q_UNUSED(fileName)
+
+        m_logger->log("Function '%1' is used here before its declaration."_L1.arg(name),
+                      qmlFunctionUsedBeforeDeclaration, accessLocation);
+        m_logger->log("Note: declaration of '%1' here"_L1.arg(name),
+                      qmlFunctionUsedBeforeDeclaration, declarationLocation);
+    }
+
 private:
     QQmlJSLogger *m_logger;
 };
diff --git a/src/qmlcompiler/qqmljslogger.cpp b/src/qmlcompiler/qqmljslogger.cpp
index ff2a77a044..03db79e658 100644
--- a/src/qmlcompiler/qqmljslogger.cpp
+++ b/src/qmlcompiler/qqmljslogger.cpp
@@ -92,6 +92,9 @@ using namespace Qt::StringLiterals;
       QtWarningMsg, true, false)                                                                   \
     X(qmlVarUsedBeforeDeclaration, "var-used-before-declaration", "VarUsedBeforeDeclaration",      \
       "Warn if a variable is used before declaration", QtWarningMsg, false, false)                 \
+    X(qmlFunctionUsedBeforeDeclaration, "function-used-before-declaration",                        \
+      "FunctionUsedBeforeDeclaration", "Warn if a function is used before declaration",            \
+      QtWarningMsg, true, false)                                                                   \
     X(qmlInvalidLintDirective, "invalid-lint-directive", "InvalidLintDirective",                   \
       "Warn if an invalid qmllint comment is found", QtWarningMsg, false, false)                   \
     X(qmlUseProperFunction, "use-proper-function", "UseProperFunction",                            \
diff --git a/src/qmlcompiler/qqmljsloggingutils.h b/src/qmlcompiler/qqmljsloggingutils.h
index 078b7d1a45..56d4ac49b5 100644
--- a/src/qmlcompiler/qqmljsloggingutils.h
+++ b/src/qmlcompiler/qqmljsloggingutils.h
@@ -70,6 +70,7 @@ extern const Q_QMLCOMPILER_EXPORT QQmlSA::LoggerWarningId qmlCompiler;
 extern const Q_QMLCOMPILER_EXPORT QQmlSA::LoggerWarningId qmlAttachedPropertyReuse;
 extern const Q_QMLCOMPILER_EXPORT QQmlSA::LoggerWarningId qmlPlugin;
 extern const Q_QMLCOMPILER_EXPORT QQmlSA::LoggerWarningId qmlVarUsedBeforeDeclaration;
+extern const Q_QMLCOMPILER_EXPORT QQmlSA::LoggerWarningId qmlFunctionUsedBeforeDeclaration;
 extern const Q_QMLCOMPILER_EXPORT QQmlSA::LoggerWarningId qmlInvalidLintDirective;
 extern const Q_QMLCOMPILER_EXPORT QQmlSA::LoggerWarningId qmlUseProperFunction;
 extern const Q_QMLCOMPILER_EXPORT QQmlSA::LoggerWarningId qmlAccessSingleton;