vendor/llvm-project/llvmorg-16-init-18548-gb0daacf58f41

1 files changed, 53 insertions, 0 deletions

diff --git a/clang/lib/ExtractAPI/APIIgnoresList.cpp b/clang/lib/ExtractAPI/APIIgnoresList.cpp
new file mode 100644
index 000000000000..1d65ae2b8e31
--- /dev/null
+++ b/clang/lib/ExtractAPI/APIIgnoresList.cpp
@@ -0,0 +1,53 @@
+//===- ExtractAPI/APIIgnoresList.cpp -------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file implements APIIgnoresList that allows users to specifiy a file
+/// containing symbols to ignore during API extraction.
+///
+//===----------------------------------------------------------------------===//
+
+#include "clang/ExtractAPI/APIIgnoresList.h"
+#include "clang/Basic/FileManager.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/Support/Error.h"
+
+using namespace clang;
+using namespace clang::extractapi;
+using namespace llvm;
+
+char IgnoresFileNotFound::ID;
+
+void IgnoresFileNotFound::log(llvm::raw_ostream &os) const {
+  os << "Could not find API ignores file " << Path;
+}
+
+std::error_code IgnoresFileNotFound::convertToErrorCode() const {
+  return llvm::inconvertibleErrorCode();
+}
+
+Expected<APIIgnoresList> APIIgnoresList::create(StringRef IgnoresFilePath,
+                                                FileManager &FM) {
+  auto BufferOrErr = FM.getBufferForFile(IgnoresFilePath);
+  if (!BufferOrErr)
+    return make_error<IgnoresFileNotFound>(IgnoresFilePath);
+
+  auto Buffer = std::move(BufferOrErr.get());
+  SmallVector<StringRef, 32> Lines;
+  Buffer->getBuffer().split(Lines, '\n', /*MaxSplit*/ -1, /*KeepEmpty*/ false);
+  // Symbol names don't have spaces in them, let's just remove these in case the
+  // input is slighlty malformed.
+  transform(Lines, Lines.begin(), [](StringRef Line) { return Line.trim(); });
+  sort(Lines);
+  return APIIgnoresList(std::move(Lines), std::move(Buffer));
+}
+
+bool APIIgnoresList::shouldIgnore(StringRef SymbolName) const {
+  auto It = lower_bound(SymbolsToIgnore, SymbolName);
+  return (It != SymbolsToIgnore.end()) && (*It == SymbolName);
+}