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//===- unittest/Tooling/ToolingTest.cpp - Tooling unit tests --------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "clang/AST/ASTConsumer.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclGroup.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Frontend/FrontendAction.h"
#include "clang/Frontend/FrontendActions.h"
#include "clang/Tooling/CompilationDatabase.h"
#include "clang/Tooling/Tooling.h"
#include "gtest/gtest.h"
#include <string>
namespace clang {
namespace tooling {
namespace {
/// Takes an ast consumer and returns it from CreateASTConsumer. This only
/// works with single translation unit compilations.
class TestAction : public clang::ASTFrontendAction {
public:
/// Takes ownership of TestConsumer.
explicit TestAction(clang::ASTConsumer *TestConsumer)
: TestConsumer(TestConsumer) {}
protected:
virtual clang::ASTConsumer* CreateASTConsumer(
clang::CompilerInstance& compiler, StringRef dummy) {
/// TestConsumer will be deleted by the framework calling us.
return TestConsumer;
}
private:
clang::ASTConsumer * const TestConsumer;
};
class FindTopLevelDeclConsumer : public clang::ASTConsumer {
public:
explicit FindTopLevelDeclConsumer(bool *FoundTopLevelDecl)
: FoundTopLevelDecl(FoundTopLevelDecl) {}
virtual bool HandleTopLevelDecl(clang::DeclGroupRef DeclGroup) {
*FoundTopLevelDecl = true;
return true;
}
private:
bool * const FoundTopLevelDecl;
};
} // end namespace
TEST(runToolOnCode, FindsNoTopLevelDeclOnEmptyCode) {
bool FoundTopLevelDecl = false;
EXPECT_TRUE(runToolOnCode(
new TestAction(new FindTopLevelDeclConsumer(&FoundTopLevelDecl)), ""));
#if !defined(_MSC_VER)
EXPECT_FALSE(FoundTopLevelDecl);
#else
// FIXME: LangOpts.MicrosoftExt appends "class type_info;"
EXPECT_TRUE(FoundTopLevelDecl);
#endif
}
namespace {
class FindClassDeclXConsumer : public clang::ASTConsumer {
public:
FindClassDeclXConsumer(bool *FoundClassDeclX)
: FoundClassDeclX(FoundClassDeclX) {}
virtual bool HandleTopLevelDecl(clang::DeclGroupRef GroupRef) {
if (CXXRecordDecl* Record = dyn_cast<clang::CXXRecordDecl>(
*GroupRef.begin())) {
if (Record->getName() == "X") {
*FoundClassDeclX = true;
}
}
return true;
}
private:
bool *FoundClassDeclX;
};
} // end namespace
TEST(runToolOnCode, FindsClassDecl) {
bool FoundClassDeclX = false;
EXPECT_TRUE(runToolOnCode(new TestAction(
new FindClassDeclXConsumer(&FoundClassDeclX)), "class X;"));
EXPECT_TRUE(FoundClassDeclX);
FoundClassDeclX = false;
EXPECT_TRUE(runToolOnCode(new TestAction(
new FindClassDeclXConsumer(&FoundClassDeclX)), "class Y;"));
EXPECT_FALSE(FoundClassDeclX);
}
TEST(newFrontendActionFactory, CreatesFrontendActionFactoryFromType) {
llvm::OwningPtr<FrontendActionFactory> Factory(
newFrontendActionFactory<SyntaxOnlyAction>());
llvm::OwningPtr<FrontendAction> Action(Factory->create());
EXPECT_TRUE(Action.get() != NULL);
}
struct IndependentFrontendActionCreator {
ASTConsumer *newASTConsumer() {
return new FindTopLevelDeclConsumer(NULL);
}
};
TEST(newFrontendActionFactory, CreatesFrontendActionFactoryFromFactoryType) {
IndependentFrontendActionCreator Creator;
llvm::OwningPtr<FrontendActionFactory> Factory(
newFrontendActionFactory(&Creator));
llvm::OwningPtr<FrontendAction> Action(Factory->create());
EXPECT_TRUE(Action.get() != NULL);
}
TEST(ToolInvocation, TestMapVirtualFile) {
clang::FileManager Files((clang::FileSystemOptions()));
std::vector<std::string> Args;
Args.push_back("tool-executable");
Args.push_back("-Idef");
Args.push_back("-fsyntax-only");
Args.push_back("test.cpp");
clang::tooling::ToolInvocation Invocation(Args, new SyntaxOnlyAction, &Files);
Invocation.mapVirtualFile("test.cpp", "#include <abc>\n");
Invocation.mapVirtualFile("def/abc", "\n");
EXPECT_TRUE(Invocation.run());
}
struct VerifyEndCallback : public EndOfSourceFileCallback {
VerifyEndCallback() : Called(0), Matched(false) {}
virtual void run() {
++Called;
}
ASTConsumer *newASTConsumer() {
return new FindTopLevelDeclConsumer(&Matched);
}
unsigned Called;
bool Matched;
};
#if !defined(_WIN32)
TEST(newFrontendActionFactory, InjectsEndOfSourceFileCallback) {
VerifyEndCallback EndCallback;
FixedCompilationDatabase Compilations("/", std::vector<std::string>());
std::vector<std::string> Sources;
Sources.push_back("/a.cc");
Sources.push_back("/b.cc");
ClangTool Tool(Compilations, Sources);
Tool.mapVirtualFile("/a.cc", "void a() {}");
Tool.mapVirtualFile("/b.cc", "void b() {}");
Tool.run(newFrontendActionFactory(&EndCallback, &EndCallback));
EXPECT_TRUE(EndCallback.Matched);
EXPECT_EQ(2u, EndCallback.Called);
}
#endif
struct SkipBodyConsumer : public clang::ASTConsumer {
/// Skip the 'skipMe' function.
virtual bool shouldSkipFunctionBody(Decl *D) {
FunctionDecl *F = dyn_cast<FunctionDecl>(D);
return F && F->getNameAsString() == "skipMe";
}
};
struct SkipBodyAction : public clang::ASTFrontendAction {
virtual ASTConsumer *CreateASTConsumer(CompilerInstance &Compiler,
StringRef) {
Compiler.getFrontendOpts().SkipFunctionBodies = true;
return new SkipBodyConsumer;
}
};
TEST(runToolOnCode, TestSkipFunctionBoddy) {
EXPECT_TRUE(runToolOnCode(new SkipBodyAction,
"int skipMe() { an_error_here }"));
EXPECT_FALSE(runToolOnCode(new SkipBodyAction,
"int skipMeNot() { an_error_here }"));
}
} // end namespace tooling
} // end namespace clang
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