ABANDONED CL: Rewrite also identifiers declared in generated files.

tools/clang/rewrite_to_chrome_style/RewriteToChromeStyle.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Changes Blink-style names to Chrome-style names. Currently transforms:
 //   fields:
 //     int m_operationCount => int operation_count_
 //   variables (including parameters):
 //     int mySuperVariable => int my_super_variable
 //   constants:
@@ skipping 25 matching lines @@
 
 using namespace clang::ast_matchers;
 using clang::tooling::CommonOptionsParser;
 using clang::tooling::Replacement;
 using llvm::StringRef;
 
 namespace {
 
 const char kBlinkFieldPrefix[] = "m_";
 const char kBlinkStaticMemberPrefix[] = "s_";
-const char kGeneratedFileRegex[] = "^gen/|/gen/";
 
 template <typename MatcherType, typename NodeType>
 bool IsMatching(const MatcherType& matcher,
                 const NodeType& node,
                 clang::ASTContext& context) {
   return !match(matcher, node, context).empty();
 }
 
 const clang::ast_matchers::internal::
     VariadicDynCastAllOfMatcher<clang::Expr, clang::UnresolvedMemberExpr>
@@ skipping 930 matching lines @@
                                  options.getSourcePathList());
 
   MatchFinder match_finder;
   std::set<Replacement> replacements;
 
   // Blink namespace matchers ========
   auto blink_namespace_decl =
       namespaceDecl(anyOf(hasName("blink"), hasName("WTF")),
                     hasParent(translationUnitDecl()));
 
+  auto protocol_namespace_decl =
+      namespaceDecl(hasName("protocol"),
+                    hasParent(namespaceDecl(hasName("blink"),
+                                            hasParent(translationUnitDecl()))));
+
   // Given top-level compilation unit:
   //   namespace WTF {
   //     void foo() {}
   //   }
   // matches |foo|.
-  auto decl_under_blink_namespace = decl(hasAncestor(blink_namespace_decl));
+  auto decl_under_blink_namespace =
+      decl(hasAncestor(blink_namespace_decl),
+           unless(hasAncestor(protocol_namespace_decl)));
 
   // Given top-level compilation unit:
   //   void WTF::function() {}
   //   void WTF::Class::method() {}
   // matches |WTF::function| and |WTF::Class::method| decls.
   auto decl_has_qualifier_to_blink_namespace =
       declaratorDecl(has(nestedNameSpecifier(
           hasTopLevelPrefix(specifiesNamespace(blink_namespace_decl)))));
 
   auto in_blink_namespace = decl(
       anyOf(decl_under_blink_namespace, decl_has_qualifier_to_blink_namespace,
-            hasAncestor(decl_has_qualifier_to_blink_namespace)),
-      unless(isExpansionInFileMatching(kGeneratedFileRegex)));
+            hasAncestor(decl_has_qualifier_to_blink_namespace)));
 
   // Field, variable, and enum declarations ========
   // Given
   //   int x;
   //   struct S {
   //     int y;
   //     enum { VALUE };
   //   };
   // matches |x|, |y|, and |VALUE|.
   auto field_decl_matcher = id("decl", fieldDecl(in_blink_namespace));
@@ skipping 334 matching lines @@
   for (const auto& r : replacements) {
     std::string replacement_text = r.getReplacementText().str();
     std::replace(replacement_text.begin(), replacement_text.end(), '\n', '\0');
     llvm::outs() << "r:::" << r.getFilePath() << ":::" << r.getOffset()
                  << ":::" << r.getLength() << ":::" << replacement_text << "\n";
   }
   llvm::outs() << "==== END EDITS ====\n";
 
   return 0;
 }