https://github.com/MaskRay/ccls/commit/3ce756e39ae48204f016a58684652ad62b4dd9f9.patch
https://github.com/MaskRay/ccls/commit/8422f0a522b6fbcb4412a8ec73d80b4acbc7e00f.patch
https://github.com/MaskRay/ccls/commit/790daca4b2d9d5873623fee86283cd61212df674.patch

From: Fangrui Song <i@maskray.me>
Date: Thu, 23 Sep 2021 13:36:01 -0700
Subject: [PATCH] Adaopt llvmorg-14-init-3863-g601102d282d5: refactor
 clang::isIdentifierBody

---
 src/clang_tu.hh      | 4 ++++
 src/indexer.cc       | 6 +++---
 src/working_files.cc | 9 ++++++---
 3 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/clang_tu.hh b/src/clang_tu.hh
index b37950926..7dbfc4a88 100644
--- a/src/clang_tu.hh
+++ b/src/clang_tu.hh
@@ -17,6 +17,10 @@ namespace vfs = clang::vfs;
 }
 #endif
 
+#if LLVM_VERSION_MAJOR < 14 // llvmorg-14-init-3863-g601102d282d5
+#define isAsciiIdentifierContinue isIdentifierBody
+#endif
+
 namespace ccls {
 std::string pathFromFileEntry(const clang::FileEntry &file);
 
diff --git a/src/indexer.cc b/src/indexer.cc
index 89d78959e..644c0ccbb 100644
--- a/src/indexer.cc
+++ b/src/indexer.cc
@@ -527,8 +527,8 @@ class IndexDataConsumer : public index::IndexDataConsumer {
     auto i = name.find(short_name);
     if (short_name.size())
       while (i != std::string::npos &&
-             ((i && isIdentifierBody(name[i - 1])) ||
-              isIdentifierBody(name[i + short_name.size()])))
+             ((i && isAsciiIdentifierContinue(name[i - 1])) ||
+              isAsciiIdentifierContinue(name[i + short_name.size()])))
         i = name.find(short_name, i + short_name.size());
     if (i == std::string::npos) {
       // e.g. operator type-parameter-1
@@ -552,7 +552,7 @@ class IndexDataConsumer : public index::IndexDataConsumer {
         paren++;
       else if (name[i - 1] == '(')
         paren--;
-      else if (!(paren > 0 || isIdentifierBody(name[i - 1]) ||
+      else if (!(paren > 0 || isAsciiIdentifierContinue(name[i - 1]) ||
                  name[i - 1] == ':'))
         break;
     }
diff --git a/src/working_files.cc b/src/working_files.cc
index f80f21053..4904388be 100644
--- a/src/working_files.cc
+++ b/src/working_files.cc
@@ -342,7 +342,10 @@ std::optional<int> WorkingFile::getIndexPosFromBufferPos(int line, int *column,
 Position WorkingFile::getCompletionPosition(Position pos, std::string *filter) const {
   int start = getOffsetForPosition(pos, buffer_content);
   int i = start;
-  while (i > 0 && isIdentifierBody(buffer_content[i - 1]))
+#if LLVM_VERSION_MAJOR < 14 // llvmorg-14-init-3863-g601102d282d5
+#define isAsciiIdentifierContinue isIdentifierBody
+#endif
+  while (i > 0 && isAsciiIdentifierContinue(buffer_content[i - 1]))
     --i;
   *filter = buffer_content.substr(i, start - i);
   return getPositionForOffset(buffer_content, i);
@@ -455,10 +458,10 @@ std::string_view lexIdentifierAroundPos(Position position,
     c = content[start - 1];
     if (c == ':' && start > 1 && content[start - 2] == ':')
       start--;
-    else if (!isIdentifierBody(c))
+    else if (!isAsciiIdentifierContinue(c))
       break;
   }
-  for (; end < content.size() && isIdentifierBody(content[end]); end++)
+  for (; end < content.size() && isAsciiIdentifierContinue(content[end]); end++)
     ;
 
   return content.substr(start, end - start);


From: Fangrui Song <i@maskray.me>
Date: Sun, 9 Jan 2022 12:25:07 -0800
Subject: [PATCH] Adapt llvmorg-14-init-13600-g92417eaf3329: braced constructor
 call

---
 src/messages/textDocument_signatureHelp.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/messages/textDocument_signatureHelp.cc b/src/messages/textDocument_signatureHelp.cc
index 8e8a7277..4192272a 100644
--- a/src/messages/textDocument_signatureHelp.cc
+++ b/src/messages/textDocument_signatureHelp.cc
@@ -80,6 +80,10 @@ class SignatureHelpConsumer : public CodeCompleteConsumer {
 #if LLVM_VERSION_MAJOR >= 8
                                  ,
                                  SourceLocation openParLoc
+#endif
+#if LLVM_VERSION_MAJOR >= 14
+                                 ,
+                                 bool braced
 #endif
                                  ) override {
     ls_sighelp.activeParameter = (int)currentArg;
@@ -93,7 +97,11 @@ class SignatureHelpConsumer : public CodeCompleteConsumer {
           cand = OverloadCandidate(pattern);
 
       const auto *ccs =
+#if LLVM_VERSION_MAJOR >= 14
+          cand.CreateSignatureString(currentArg, s, *alloc, cCTUInfo, true, braced);
+#else
           cand.CreateSignatureString(currentArg, s, *alloc, cCTUInfo, true);
+#endif
 
       const char *ret_type = nullptr;
       SignatureInformation &ls_sig = ls_sighelp.signatures.emplace_back();


From: Fangrui Song <i@maskray.me>
Date: Sun, 30 Jan 2022 11:17:32 -0800
Subject: [PATCH] query: include llvm/ADT/STLExtras.h

The header is no longer transitively included in 2022-01.
--- a/src/query.cc
+++ b/src/query.cc
@@ -9,6 +9,8 @@
 
 #include <rapidjson/document.h>
 
+#include <llvm/ADT/STLExtras.h>
+
 #include <assert.h>
 #include <functional>
 #include <limits.h>