[PATCH] D87523: [SyntaxTree] Reduce visibility of `Arena::lexBuffer`.

[Eduardo Caldas via Phabricator via cfe-commits]

eduucaldas created this revision.
eduucaldas added a reviewer: gribozavr2.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.
eduucaldas requested review of this revision.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D87523

Files:
  clang/include/clang/Tooling/Syntax/Tree.h
  clang/lib/Tooling/Syntax/Synthesis.cpp


Index: clang/lib/Tooling/Syntax/Synthesis.cpp
===================================================================
--- clang/lib/Tooling/Syntax/Synthesis.cpp
+++ clang/lib/Tooling/Syntax/Synthesis.cpp
@@ -6,6 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 #include "clang/Tooling/Syntax/BuildTree.h"
+#include "clang/Tooling/Syntax/Tree.h"
 
 using namespace clang;
 
@@ -19,13 +20,19 @@
                                    syntax::NodeRole R) {
     T->prependChildLowLevel(Child, R);
   }
+
+  static std::pair<FileID, ArrayRef<Token>>
+  lexBuffer(syntax::Arena &A, std::unique_ptr<llvm::MemoryBuffer> Buffer) {
+    return A.lexBuffer(std::move(Buffer));
+  }
 };
 
 clang::syntax::Leaf *syntax::createPunctuation(clang::syntax::Arena &A,
                                                clang::tok::TokenKind K) {
-  auto Tokens = A.lexBuffer(llvm::MemoryBuffer::getMemBuffer(
-                                clang::tok::getPunctuatorSpelling(K)))
-                    .second;
+  auto Tokens =
+      FactoryImpl::lexBuffer(A, llvm::MemoryBuffer::getMemBuffer(
+                                    clang::tok::getPunctuatorSpelling(K)))
+          .second;
   assert(Tokens.size() == 1);
   assert(Tokens.front().kind() == K);
   auto *L = new (A.getAllocator()) clang::syntax::Leaf(Tokens.begin());
Index: clang/include/clang/Tooling/Syntax/Tree.h
===================================================================
--- clang/include/clang/Tooling/Syntax/Tree.h
+++ clang/include/clang/Tooling/Syntax/Tree.h
@@ -47,11 +47,13 @@
   const TokenBuffer &getTokenBuffer() const;
   llvm::BumpPtrAllocator &getAllocator() { return Allocator; }
 
+private:
   /// Add \p Buffer to the underlying source manager, tokenize it and store the
-  /// resulting tokens. Useful when there is a need to materialize tokens that
-  /// were not written in user code.
+  /// resulting tokens. Used exclusively in `FactoryImpl` to materialize tokens
+  /// that were not written in user code.
   std::pair<FileID, ArrayRef<Token>>
   lexBuffer(std::unique_ptr<llvm::MemoryBuffer> Buffer);
+  friend class FactoryImpl;
 
 private:
   SourceManager &SourceMgr;


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