83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
|
//===- unittests/Analysis/CFGBuildResult.h - CFG tests --------------------===//
|
||
|
|
//
|
||
|
|
// 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
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#include "clang/ASTMatchers/ASTMatchFinder.h"
|
||
|
|
#include "clang/Analysis/CFG.h"
|
||
|
|
#include "clang/Tooling/Tooling.h"
|
||
|
|
#include <memory>
|
||
|
|
|
||
|
|
namespace clang {
|
||
|
|
namespace analysis {
|
||
|
|
|
||
|
|
class BuildResult {
|
||
|
|
public:
|
||
|
|
enum Status {
|
||
|
|
ToolFailed,
|
||
|
|
ToolRan,
|
||
|
|
SawFunctionBody,
|
||
|
|
BuiltCFG,
|
||
|
|
};
|
||
|
|
|
||
|
|
BuildResult(Status S, const FunctionDecl *Func = nullptr,
|
||
|
|
std::unique_ptr<CFG> Cfg = nullptr,
|
||
|
|
std::unique_ptr<ASTUnit> AST = nullptr)
|
||
|
|
: S(S), Cfg(std::move(Cfg)), AST(std::move(AST)), Func(Func) {}
|
||
|
|
|
||
|
|
Status getStatus() const { return S; }
|
||
|
|
CFG *getCFG() const { return Cfg.get(); }
|
||
|
|
ASTUnit *getAST() const { return AST.get(); }
|
||
|
|
const FunctionDecl *getFunc() const { return Func; }
|
||
|
|
|
||
|
|
private:
|
||
|
|
Status S;
|
||
|
|
std::unique_ptr<CFG> Cfg;
|
||
|
|
std::unique_ptr<ASTUnit> AST;
|
||
|
|
const FunctionDecl *Func;
|
||
|
|
};
|
||
|
|
|
||
|
|
class CFGCallback : public ast_matchers::MatchFinder::MatchCallback {
|
||
|
|
public:
|
||
|
|
CFGCallback(std::unique_ptr<ASTUnit> AST) : AST(std::move(AST)) {}
|
||
|
|
|
||
|
|
std::unique_ptr<ASTUnit> AST;
|
||
|
|
BuildResult TheBuildResult = BuildResult::ToolRan;
|
||
|
|
CFG::BuildOptions Options;
|
||
|
|
|
||
|
|
void run(const ast_matchers::MatchFinder::MatchResult &Result) override {
|
||
|
|
const auto *Func = Result.Nodes.getNodeAs<FunctionDecl>("func");
|
||
|
|
Stmt *Body = Func->getBody();
|
||
|
|
if (!Body)
|
||
|
|
return;
|
||
|
|
TheBuildResult = BuildResult::SawFunctionBody;
|
||
|
|
Options.AddImplicitDtors = true;
|
||
|
|
if (std::unique_ptr<CFG> Cfg =
|
||
|
|
CFG::buildCFG(nullptr, Body, Result.Context, Options))
|
||
|
|
TheBuildResult = {BuildResult::BuiltCFG, Func, std::move(Cfg),
|
||
|
|
std::move(AST)};
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
inline BuildResult BuildCFG(const char *Code, CFG::BuildOptions Options = {}) {
|
||
|
|
std::vector<std::string> Args = {"-std=c++11",
|
||
|
|
"-fno-delayed-template-parsing"};
|
||
|
|
std::unique_ptr<ASTUnit> AST = tooling::buildASTFromCodeWithArgs(Code, Args);
|
||
|
|
if (!AST)
|
||
|
|
return BuildResult::ToolFailed;
|
||
|
|
|
||
|
|
CFGCallback Callback(std::move(AST));
|
||
|
|
Callback.Options = Options;
|
||
|
|
ast_matchers::MatchFinder Finder;
|
||
|
|
Finder.addMatcher(ast_matchers::functionDecl().bind("func"), &Callback);
|
||
|
|
|
||
|
|
Finder.matchAST(Callback.AST->getASTContext());
|
||
|
|
return std::move(Callback.TheBuildResult);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace analysis
|
||
|
|
} // namespace clang
|