From e0c921f93c66cf751938e7d3a70eab60095b7a51 Mon Sep 17 00:00:00 2001
From: Fangrui Song <i@maskray.me>
Date: Sat, 9 Nov 2019 13:27:09 -0800
Subject: [PATCH] indexer: fix getAdjustedDecl for explicit instantiations; fix
 incorrect short_offset_size=1 when name is empty

Fix #516
---
 src/indexer.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/indexer.cc b/src/indexer.cc
index 662579847..426c2def3 100644
--- a/src/indexer.cc
+++ b/src/indexer.cc
@@ -357,7 +357,7 @@ const Decl *getAdjustedDecl(const Decl *d) {
   while (d) {
     if (auto *r = dyn_cast<CXXRecordDecl>(d)) {
       if (auto *s = dyn_cast<ClassTemplateSpecializationDecl>(r)) {
-        if (!s->getTypeAsWritten()) {
+        if (!s->isExplicitSpecialization()) {
           llvm::PointerUnion<ClassTemplateDecl *,
                              ClassTemplatePartialSpecializationDecl *>
               result = s->getSpecializedTemplateOrPartial();
@@ -533,7 +533,8 @@ class IndexDataConsumer : public index::IndexDataConsumer {
       name.replace(i, short_name.size(), qualified);
       def.short_name_offset = i + qualified.size() - short_name.size();
     }
-    def.short_name_size = short_name.size();
+    // name may be empty while short_name is not.
+    def.short_name_size = name.empty() ? 0 : short_name.size();
     for (int paren = 0; i; i--) {
       // Skip parentheses in "(anon struct)::name"
       if (name[i - 1] == ')')