From 3858c7d3b96373775f3d0b0e2b9bf0ad44b722d5 Mon Sep 17 00:00:00 2001
From: Ivan Donchevskii <ivan.donchevskii@qt.io>
Date: Fri, 5 Oct 2018 14:43:30 +0200
Subject: [PATCH] Clang: Fix the crash in function overload completion

Check that the completions container is not empty.

Change-Id: I399b8cce42995d758013441d2d3d9f3d8156dc06
Reviewed-by: hjk <hjk@qt.io>
---
 src/plugins/clangcodemodel/clangcompletionassistprocessor.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/plugins/clangcodemodel/clangcompletionassistprocessor.cpp b/src/plugins/clangcodemodel/clangcompletionassistprocessor.cpp
index e87135351db..e8d7086662c 100644
--- a/src/plugins/clangcodemodel/clangcompletionassistprocessor.cpp
+++ b/src/plugins/clangcodemodel/clangcompletionassistprocessor.cpp
@@ -185,7 +185,7 @@ void ClangCompletionAssistProcessor::handleAvailableCompletions(const CodeComple
 {
     QTC_CHECK(m_completions.isEmpty());
 
-    if (m_sentRequestType == FunctionHintCompletion) {
+    if (m_sentRequestType == FunctionHintCompletion && !completions.isEmpty()) {
         const CodeCompletion &firstCompletion = completions.front();
         if (firstCompletion.completionKind == CodeCompletion::FunctionOverloadCompletionKind) {
             setAsyncProposalAvailable(createFunctionHintProposal(completions));