unique_ptr-ify ownership of ASTConsumers

(after fixing a bug in MultiplexConsumer I noticed the ownership of the
nested consumers was implemented with raw pointers - so this fixes
that... and follows the source back to its origin pushing unique_ptr
ownership up through there too)

llvm-svn: 213307

4 files changed, 24 insertions, 26 deletions

diff --git a/clang/lib/Frontend/Rewrite/FrontendActions.cpp b/clang/lib/Frontend/Rewrite/FrontendActions.cpp
index 59fef736f16..1b5eb2855be 100644
--- a/clang/lib/Frontend/Rewrite/FrontendActions.cpp
+++ b/clang/lib/Frontend/Rewrite/FrontendActions.cpp
@@ -30,8 +30,8 @@ using namespace clang;
 // AST Consumer Actions
 //===----------------------------------------------------------------------===//
 
-ASTConsumer *HTMLPrintAction::CreateASTConsumer(CompilerInstance &CI,
-                                                StringRef InFile) {
+std::unique_ptr<ASTConsumer>
+HTMLPrintAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
   if (raw_ostream *OS = CI.createDefaultOutputFile(false, InFile))
     return CreateHTMLPrinter(OS, CI.getPreprocessor());
   return nullptr;
@@ -40,9 +40,9 @@ ASTConsumer *HTMLPrintAction::CreateASTConsumer(CompilerInstance &CI,
 FixItAction::FixItAction() {}
 FixItAction::~FixItAction() {}
 
-ASTConsumer *FixItAction::CreateASTConsumer(CompilerInstance &CI,
-                                            StringRef InFile) {
-  return new ASTConsumer();
+std::unique_ptr<ASTConsumer>
+FixItAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
+  return llvm::make_unique<ASTConsumer>();
 }
 
 namespace {
@@ -148,8 +148,8 @@ bool FixItRecompile::BeginInvocation(CompilerInstance &CI) {
 
 #ifdef CLANG_ENABLE_OBJC_REWRITER
 
-ASTConsumer *RewriteObjCAction::CreateASTConsumer(CompilerInstance &CI,
-                                                  StringRef InFile) {
+std::unique_ptr<ASTConsumer>
+RewriteObjCAction::CreateASTConsumer(CompilerInstance &CI, StringRef InFile) {
   if (raw_ostream *OS = CI.createDefaultOutputFile(false, InFile, "cpp")) {
     if (CI.getLangOpts().ObjCRuntime.isNonFragile())
       return CreateModernObjCRewriter(InFile, OS,
diff --git a/clang/lib/Frontend/Rewrite/HTMLPrint.cpp b/clang/lib/Frontend/Rewrite/HTMLPrint.cpp
index 64da05fdde6..22ccfe6936b 100644
--- a/clang/lib/Frontend/Rewrite/HTMLPrint.cpp
+++ b/clang/lib/Frontend/Rewrite/HTMLPrint.cpp
@@ -47,11 +47,12 @@ namespace {
   };
 }
 
-ASTConsumer* clang::CreateHTMLPrinter(raw_ostream *OS,
-                                      Preprocessor &PP,
-                                      bool SyntaxHighlight,
-                                      bool HighlightMacros) {
-  return new HTMLPrinter(OS, PP, SyntaxHighlight, HighlightMacros);
+std::unique_ptr<ASTConsumer> clang::CreateHTMLPrinter(raw_ostream *OS,
+                                                      Preprocessor &PP,
+                                                      bool SyntaxHighlight,
+                                                      bool HighlightMacros) {
+  return llvm::make_unique<HTMLPrinter>(OS, PP, SyntaxHighlight,
+                                        HighlightMacros);
 }
 
 void HTMLPrinter::Initialize(ASTContext &context) {
diff --git a/clang/lib/Frontend/Rewrite/RewriteModernObjC.cpp b/clang/lib/Frontend/Rewrite/RewriteModernObjC.cpp
index 3e18a8b415a..c97fa979f60 100644
--- a/clang/lib/Frontend/Rewrite/RewriteModernObjC.cpp
+++ b/clang/lib/Frontend/Rewrite/RewriteModernObjC.cpp
@@ -675,14 +675,11 @@ RewriteModernObjC::RewriteModernObjC(std::string inFile, raw_ostream* OS,
                "for @try/@finally (code may not execute properly)");
 }
 
-ASTConsumer *clang::CreateModernObjCRewriter(const std::string& InFile,
-                                       raw_ostream* OS,
-                                       DiagnosticsEngine &Diags,
-                                       const LangOptions &LOpts,
-                                       bool SilenceRewriteMacroWarning,
-                                       bool LineInfo) {
-    return new RewriteModernObjC(InFile, OS, Diags, LOpts,
-                                 SilenceRewriteMacroWarning, LineInfo);
+std::unique_ptr<ASTConsumer> clang::CreateModernObjCRewriter(
+    const std::string &InFile, raw_ostream *OS, DiagnosticsEngine &Diags,
+    const LangOptions &LOpts, bool SilenceRewriteMacroWarning, bool LineInfo) {
+  return llvm::make_unique<RewriteModernObjC>(
+      InFile, OS, Diags, LOpts, SilenceRewriteMacroWarning, LineInfo);
 }
 
 void RewriteModernObjC::InitializeCommon(ASTContext &context) {
diff --git a/clang/lib/Frontend/Rewrite/RewriteObjC.cpp b/clang/lib/Frontend/Rewrite/RewriteObjC.cpp
index 7a721771759..8d48d9e7b69 100644
--- a/clang/lib/Frontend/Rewrite/RewriteObjC.cpp
+++ b/clang/lib/Frontend/Rewrite/RewriteObjC.cpp
@@ -600,12 +600,12 @@ RewriteObjC::RewriteObjC(std::string inFile, raw_ostream* OS,
                "for @try/@finally (code may not execute properly)");
 }
 
-ASTConsumer *clang::CreateObjCRewriter(const std::string& InFile,
-                                       raw_ostream* OS,
-                                       DiagnosticsEngine &Diags,
-                                       const LangOptions &LOpts,
-                                       bool SilenceRewriteMacroWarning) {
-  return new RewriteObjCFragileABI(InFile, OS, Diags, LOpts, SilenceRewriteMacroWarning);
+std::unique_ptr<ASTConsumer>
+clang::CreateObjCRewriter(const std::string &InFile, raw_ostream *OS,
+                          DiagnosticsEngine &Diags, const LangOptions &LOpts,
+                          bool SilenceRewriteMacroWarning) {
+  return llvm::make_unique<RewriteObjCFragileABI>(InFile, OS, Diags, LOpts,
+                                                  SilenceRewriteMacroWarning);
 }
 
 void RewriteObjC::InitializeCommon(ASTContext &context) {