Start implemetation of static analysis plugin

1 files changed, 114 insertions, 0 deletions

diff --git a/clang-plugin/plugin.cc b/clang-plugin/plugin.cc
new file mode 100644
index 000000000..204ce7b6f
--- /dev/null
+++ b/clang-plugin/plugin.cc
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2007-2015 University of Illinois at Urbana-Champaign.
+ * Copyright (c) 2015, Vsevolod Stakhov
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *	 * Redistributions of source code must retain the above copyright
+ *	   notice, this list of conditions and the following disclaimer.
+ *	 * Redistributions in binary form must reproduce the above copyright
+ *	   notice, this list of conditions and the following disclaimer in the
+ *	   documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY AUTHOR ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+#include "clang/Frontend/FrontendPluginRegistry.h"
+#include "clang/AST/AST.h"
+#include "clang/AST/ASTConsumer.h"
+#include "clang/AST/RecursiveASTVisitor.h"
+#include "clang/Frontend/CompilerInstance.h"
+#include "clang/Sema/Sema.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace clang;
+
+namespace {
+
+	class RspamdASTConsumer : public ASTConsumer {
+		CompilerInstance &Instance;
+
+	public:
+		RspamdASTConsumer (CompilerInstance &Instance)
+				: Instance (Instance)
+		{
+		}
+
+		bool HandleTopLevelDecl (DeclGroupRef DG) override
+		{
+			for (DeclGroupRef::iterator i = DG.begin (), e = DG.end (); i != e;
+				 ++i) {
+				const Decl *D = *i;
+				if (const NamedDecl *ND = dyn_cast<NamedDecl> (D))
+					llvm::errs () << "top-level-decl: \"" <<
+							ND->getNameAsString () << "\"\n";
+			}
+
+			return true;
+		}
+
+		void HandleTranslationUnit (ASTContext &context) override
+		{
+			struct Visitor : public RecursiveASTVisitor<Visitor> {
+
+				Visitor (void)
+				{
+				}
+
+				bool VisitFunctionDecl (FunctionDecl *FD)
+				{
+					if (FD->isLateTemplateParsed ())
+						LateParsedDecls.insert (FD);
+					return true;
+				}
+
+				std::set<FunctionDecl *> LateParsedDecls;
+			} v;
+			v.TraverseDecl (context.getTranslationUnitDecl ());
+			clang::Sema &sema = Instance.getSema ();
+			for (const FunctionDecl *FD : v.LateParsedDecls) {
+				clang::LateParsedTemplate *LPT = sema.LateParsedTemplateMap.lookup (
+						FD);
+				sema.LateTemplateParser (sema.OpaqueParser, *LPT);
+				llvm::errs () << "late-parsed-decl: \"" <<
+						FD->getNameAsString () << "\"\n";
+			}
+		}
+	};
+
+	class RspamdASTAction : public PluginASTAction {
+	protected:
+		std::unique_ptr <ASTConsumer> CreateASTConsumer (CompilerInstance &CI,
+				llvm::StringRef) override
+		{
+			return llvm::make_unique<RspamdASTConsumer> (CI);
+		}
+
+		bool ParseArgs (const CompilerInstance &CI,
+				const std::vector <std::string> &args) override
+		{
+			return true;
+		}
+
+		void PrintHelp (llvm::raw_ostream &ros)
+		{
+			ros << "Nothing here\n";
+		}
+
+	};
+
+}
+
+static FrontendPluginRegistry::Add <RspamdASTAction>
+		X ("rspamd-ast", "rspamd ast checker");