[analyzer] Overhaul of checker registration in preparation for basic plugin support. Removes support for checker groups (we can add them back in later if we decide they are still useful), and -analyzer-checker-help output is a little worse for the time being (no packages).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137758 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp b/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
index 18a946c..24f19cd 100644
--- a/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
+++ b/lib/StaticAnalyzer/Frontend/AnalysisConsumer.cpp
@@ -66,6 +66,7 @@
   const Preprocessor &PP;
   const std::string OutDir;
   AnalyzerOptions Opts;
+  ArrayRef<std::string> Plugins;
 
   // PD is owned by AnalysisManager.
   PathDiagnosticClient *PD;
@@ -78,9 +79,9 @@
 
   AnalysisConsumer(const Preprocessor& pp,
                    const std::string& outdir,
-                   const AnalyzerOptions& opts)
-    : Ctx(0), PP(pp), OutDir(outdir),
-      Opts(opts), PD(0) {
+                   const AnalyzerOptions& opts,
+                   ArrayRef<std::string> plugins)
+    : Ctx(0), PP(pp), OutDir(outdir), Opts(opts), Plugins(plugins), PD(0) {
     DigestAnalyzerOptions();
   }
 
@@ -143,8 +144,8 @@
 
   virtual void Initialize(ASTContext &Context) {
     Ctx = &Context;
-    checkerMgr.reset(registerCheckers(Opts, PP.getLangOptions(),
-                                      PP.getDiagnostics()));
+    checkerMgr.reset(createCheckerManager(Opts, PP.getLangOptions(), Plugins,
+                                          PP.getDiagnostics()));
     Mgr.reset(new AnalysisManager(*Ctx, PP.getDiagnostics(),
                                   PP.getLangOptions(), PD,
                                   CreateStoreMgr, CreateConstraintMgr,
@@ -366,14 +367,13 @@
 //===----------------------------------------------------------------------===//
 
 ASTConsumer* ento::CreateAnalysisConsumer(const Preprocessor& pp,
-                                           const std::string& OutDir,
-                                           const AnalyzerOptions& Opts) {
-  llvm::OwningPtr<AnalysisConsumer> C(new AnalysisConsumer(pp, OutDir, Opts));
-
-  // Last, disable the effects of '-Werror' when using the AnalysisConsumer.
+                                          const std::string& outDir,
+                                          const AnalyzerOptions& opts,
+                                          ArrayRef<std::string> plugins) {
+  // Disable the effects of '-Werror' when using the AnalysisConsumer.
   pp.getDiagnostics().setWarningsAsErrors(false);
 
-  return C.take();
+  return new AnalysisConsumer(pp, outDir, opts, plugins);
 }
 
 //===----------------------------------------------------------------------===//
diff --git a/lib/StaticAnalyzer/Frontend/AnalysisConsumer.h b/lib/StaticAnalyzer/Frontend/AnalysisConsumer.h
index 646fe97..0265517 100644
--- a/lib/StaticAnalyzer/Frontend/AnalysisConsumer.h
+++ b/lib/StaticAnalyzer/Frontend/AnalysisConsumer.h
@@ -15,6 +15,7 @@
 #ifndef LLVM_CLANG_GR_ANALYSISCONSUMER_H
 #define LLVM_CLANG_GR_ANALYSISCONSUMER_H
 
+#include "clang/Basic/LLVM.h"
 #include <string>
 
 namespace clang {
@@ -32,7 +33,8 @@
 /// options.)
 ASTConsumer* CreateAnalysisConsumer(const Preprocessor &pp,
                                     const std::string &output,
-                                    const AnalyzerOptions& Opts);
+                                    const AnalyzerOptions& opts,
+                                    ArrayRef<std::string> plugins);
 
 } // end GR namespace
 
diff --git a/lib/StaticAnalyzer/Frontend/CheckerRegistration.cpp b/lib/StaticAnalyzer/Frontend/CheckerRegistration.cpp
index 29c1cd1..8ed74a2 100644
--- a/lib/StaticAnalyzer/Frontend/CheckerRegistration.cpp
+++ b/lib/StaticAnalyzer/Frontend/CheckerRegistration.cpp
@@ -13,9 +13,10 @@
 
 #include "clang/StaticAnalyzer/Frontend/CheckerRegistration.h"
 #include "clang/StaticAnalyzer/Frontend/FrontendActions.h"
-#include "../Checkers/ClangSACheckerProvider.h"
+#include "clang/StaticAnalyzer/Checkers/ClangCheckers.h"
 #include "clang/StaticAnalyzer/Core/CheckerManager.h"
-#include "clang/StaticAnalyzer/Core/CheckerProvider.h"
+#include "clang/StaticAnalyzer/Core/CheckerOptInfo.h"
+#include "clang/StaticAnalyzer/Core/CheckerRegistry.h"
 #include "clang/Frontend/AnalyzerOptions.h"
 #include "clang/Frontend/FrontendDiagnostic.h"
 #include "clang/Basic/Diagnostic.h"
@@ -26,9 +27,17 @@
 using namespace clang;
 using namespace ento;
 
-CheckerManager *ento::registerCheckers(const AnalyzerOptions &opts,
-                                       const LangOptions &langOpts,
-                                       Diagnostic &diags) {
+static void registerCheckers(CheckerRegistry &registry,
+                             ArrayRef<std::string> plugins) {
+  registerBuiltinCheckers(registry);
+
+  // FIXME: register plugins.
+}
+
+CheckerManager *ento::createCheckerManager(const AnalyzerOptions &opts,
+                                           const LangOptions &langOpts,
+                                           ArrayRef<std::string> plugins,
+                                           Diagnostic &diags) {
   llvm::OwningPtr<CheckerManager> checkerMgr(new CheckerManager(langOpts));
 
   SmallVector<CheckerOptInfo, 8> checkerOpts;
@@ -37,11 +46,9 @@
     checkerOpts.push_back(CheckerOptInfo(opt.first.c_str(), opt.second));
   }
 
-  llvm::OwningPtr<CheckerProvider> provider(createClangSACheckerProvider());
-  provider->registerCheckers(*checkerMgr,
-                             checkerOpts.data(), checkerOpts.size());
-
-  // FIXME: Load CheckerProviders from plugins.
+  CheckerRegistry allCheckers;
+  registerCheckers(allCheckers, plugins);
+  allCheckers.initializeManager(*checkerMgr, checkerOpts);
 
   checkerMgr->finishedCheckerRegistration();
 
@@ -54,12 +61,11 @@
   return checkerMgr.take();
 }
 
-void ento::printCheckerHelp(raw_ostream &OS) {
-  OS << "OVERVIEW: Clang Static Analyzer Checkers List\n";
-  OS << '\n';
+void ento::printCheckerHelp(raw_ostream &out, ArrayRef<std::string> plugins) {
+  out << "OVERVIEW: Clang Static Analyzer Checkers List\n\n";
+  out << "USAGE: -analyzer-checker <CHECKER or PACKAGE,...>\n\n";
 
-  llvm::OwningPtr<CheckerProvider> provider(createClangSACheckerProvider());
-  provider->printHelp(OS);
-
-  // FIXME: Load CheckerProviders from plugins.
+  CheckerRegistry allCheckers;
+  registerCheckers(allCheckers, plugins);
+  allCheckers.printHelp(out);
 }
diff --git a/lib/StaticAnalyzer/Frontend/FrontendActions.cpp b/lib/StaticAnalyzer/Frontend/FrontendActions.cpp
index eeb7800..85a18ec 100644
--- a/lib/StaticAnalyzer/Frontend/FrontendActions.cpp
+++ b/lib/StaticAnalyzer/Frontend/FrontendActions.cpp
@@ -17,6 +17,7 @@
                                                StringRef InFile) {
   return CreateAnalysisConsumer(CI.getPreprocessor(),
                                 CI.getFrontendOpts().OutputFile,
-                                CI.getAnalyzerOpts());
+                                CI.getAnalyzerOpts(),
+                                CI.getFrontendOpts().Plugins);
 }