From 5e0db6780b264baba5639ec11c5823787661c318 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Mon, 5 Feb 2024 11:31:17 -0500
Subject: [PATCH] Port to LLVM/Clang Git release/18.x as of 2024-02-05
 (900e7cbfdee)

`isPure` was renamed to `isPureVirtual`.
---
 src/Output.cxx | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/Output.cxx b/src/Output.cxx
index 6086c04..5d15caa 100644
--- a/src/Output.cxx
+++ b/src/Output.cxx
@@ -93,6 +93,10 @@ using OptionalFileEntryRef = clang::FileEntry const*;
 #include <string>
 #include <vector>
 
+#if LLVM_VERSION_MAJOR < 18
+#  define isPureVirtual isPure
+#endif
+
 class ASTVisitorBase
 {
 protected:
@@ -2282,7 +2286,7 @@ void ASTVisitor::OutputCXXMethodDecl(clang::CXXMethodDecl const* d,
   if (d->isVirtual()) {
     flags |= FH_Virtual;
   }
-  if (d->isPure()) {
+  if (d->isPureVirtual()) {
     flags |= FH_Pure;
   }
   if (d->isOverloadedOperator()) {
@@ -2312,7 +2316,7 @@ void ASTVisitor::OutputCXXConversionDecl(clang::CXXConversionDecl const* d,
   if (d->isVirtual()) {
     flags |= FH_Virtual;
   }
-  if (d->isPure()) {
+  if (d->isPureVirtual()) {
     flags |= FH_Pure;
   }
   this->OutputFunctionHelper(d, dn, "Converter", flags);
@@ -2348,7 +2352,7 @@ void ASTVisitor::OutputCXXDestructorDecl(clang::CXXDestructorDecl const* d,
   if (d->isVirtual()) {
     flags |= FH_Virtual;
   }
-  if (d->isPure()) {
+  if (d->isPureVirtual()) {
     flags |= FH_Pure;
   }
   this->OutputFunctionHelper(d, dn, "Destructor", flags,
-- 
2.44.0