From f2df43055f95f7c487e75708fac755b955a61056 Mon Sep 17 00:00:00 2001
From: Fangrui Song <i@maskray.me>
Date: Sat, 22 Dec 2018 23:52:24 -0800
Subject: [PATCH] completion: ignore CXXDeductionGuide

Fix #173
---
 src/messages/textDocument_completion.cc | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/messages/textDocument_completion.cc b/src/messages/textDocument_completion.cc
index 31840193..a29d895a 100644
--- a/src/messages/textDocument_completion.cc
+++ b/src/messages/textDocument_completion.cc
@@ -392,8 +392,15 @@ public:
           R.Availability == CXAvailability_NotAvailable)
         continue;
       if (R.Declaration) {
-        if (R.Declaration->getKind() == Decl::CXXDestructor)
+        Decl::Kind K = R.Declaration->getKind();
+        if (K == Decl::CXXDestructor)
           continue;
+        if (K == Decl::FunctionTemplate) {
+          // Ignore CXXDeductionGuide which has empty TypedText.
+          auto *FD = cast<FunctionTemplateDecl>(R.Declaration);
+          if (FD->getTemplatedDecl()->getKind() == Decl::CXXDeductionGuide)
+            continue;
+        }
         if (auto *RD = dyn_cast<RecordDecl>(R.Declaration))
           if (RD->isInjectedClassName())
             continue;