forked from OSchip/llvm-project
240 lines
8.3 KiB
C++
240 lines
8.3 KiB
C++
// unittests/ASTMatchers/ASTMatchersInternalTest.cpp - AST matcher unit 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 "ASTMatchersTest.h"
|
|
#include "clang/AST/PrettyPrinter.h"
|
|
#include "clang/ASTMatchers/ASTMatchFinder.h"
|
|
#include "clang/ASTMatchers/ASTMatchers.h"
|
|
#include "clang/Tooling/Tooling.h"
|
|
#include "llvm/ADT/Triple.h"
|
|
#include "llvm/Support/Host.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
namespace clang {
|
|
namespace ast_matchers {
|
|
|
|
#if GTEST_HAS_DEATH_TEST
|
|
TEST(HasNameDeathTest, DiesOnEmptyName) {
|
|
ASSERT_DEBUG_DEATH({
|
|
DeclarationMatcher HasEmptyName = recordDecl(hasName(""));
|
|
EXPECT_TRUE(notMatches("class X {};", HasEmptyName));
|
|
}, "");
|
|
}
|
|
|
|
TEST(HasNameDeathTest, DiesOnEmptyPattern) {
|
|
ASSERT_DEBUG_DEATH({
|
|
DeclarationMatcher HasEmptyName = recordDecl(matchesName(""));
|
|
EXPECT_TRUE(notMatches("class X {};", HasEmptyName));
|
|
}, "");
|
|
}
|
|
|
|
TEST(IsDerivedFromDeathTest, DiesOnEmptyBaseName) {
|
|
ASSERT_DEBUG_DEATH({
|
|
DeclarationMatcher IsDerivedFromEmpty = cxxRecordDecl(isDerivedFrom(""));
|
|
EXPECT_TRUE(notMatches("class X {};", IsDerivedFromEmpty));
|
|
}, "");
|
|
}
|
|
#endif
|
|
|
|
TEST(ConstructVariadic, MismatchedTypes_Regression) {
|
|
EXPECT_TRUE(
|
|
matches("const int a = 0;",
|
|
internal::DynTypedMatcher::constructVariadic(
|
|
internal::DynTypedMatcher::VO_AnyOf,
|
|
ast_type_traits::ASTNodeKind::getFromNodeKind<QualType>(),
|
|
{isConstQualified(), arrayType()})
|
|
.convertTo<QualType>()));
|
|
}
|
|
|
|
// For testing AST_MATCHER_P().
|
|
AST_MATCHER_P(Decl, just, internal::Matcher<Decl>, AMatcher) {
|
|
// Make sure all special variables are used: node, match_finder,
|
|
// bound_nodes_builder, and the parameter named 'AMatcher'.
|
|
return AMatcher.matches(Node, Finder, Builder);
|
|
}
|
|
|
|
TEST(AstMatcherPMacro, Works) {
|
|
DeclarationMatcher HasClassB = just(has(recordDecl(hasName("B")).bind("b")));
|
|
|
|
EXPECT_TRUE(matchAndVerifyResultTrue("class A { class B {}; };",
|
|
HasClassB, llvm::make_unique<VerifyIdIsBoundTo<Decl>>("b")));
|
|
|
|
EXPECT_TRUE(matchAndVerifyResultFalse("class A { class B {}; };",
|
|
HasClassB, llvm::make_unique<VerifyIdIsBoundTo<Decl>>("a")));
|
|
|
|
EXPECT_TRUE(matchAndVerifyResultFalse("class A { class C {}; };",
|
|
HasClassB, llvm::make_unique<VerifyIdIsBoundTo<Decl>>("b")));
|
|
}
|
|
|
|
AST_POLYMORPHIC_MATCHER_P(polymorphicHas,
|
|
AST_POLYMORPHIC_SUPPORTED_TYPES(Decl, Stmt),
|
|
internal::Matcher<Decl>, AMatcher) {
|
|
return Finder->matchesChildOf(
|
|
Node, AMatcher, Builder,
|
|
ast_type_traits::TraversalKind::TK_IgnoreImplicitCastsAndParentheses,
|
|
ASTMatchFinder::BK_First);
|
|
}
|
|
|
|
TEST(AstPolymorphicMatcherPMacro, Works) {
|
|
DeclarationMatcher HasClassB =
|
|
polymorphicHas(recordDecl(hasName("B")).bind("b"));
|
|
|
|
EXPECT_TRUE(matchAndVerifyResultTrue("class A { class B {}; };",
|
|
HasClassB, llvm::make_unique<VerifyIdIsBoundTo<Decl>>("b")));
|
|
|
|
EXPECT_TRUE(matchAndVerifyResultFalse("class A { class B {}; };",
|
|
HasClassB, llvm::make_unique<VerifyIdIsBoundTo<Decl>>("a")));
|
|
|
|
EXPECT_TRUE(matchAndVerifyResultFalse("class A { class C {}; };",
|
|
HasClassB, llvm::make_unique<VerifyIdIsBoundTo<Decl>>("b")));
|
|
|
|
StatementMatcher StatementHasClassB =
|
|
polymorphicHas(recordDecl(hasName("B")));
|
|
|
|
EXPECT_TRUE(matches("void x() { class B {}; }", StatementHasClassB));
|
|
}
|
|
|
|
TEST(MatchFinder, CheckProfiling) {
|
|
MatchFinder::MatchFinderOptions Options;
|
|
llvm::StringMap<llvm::TimeRecord> Records;
|
|
Options.CheckProfiling.emplace(Records);
|
|
MatchFinder Finder(std::move(Options));
|
|
|
|
struct NamedCallback : public MatchFinder::MatchCallback {
|
|
void run(const MatchFinder::MatchResult &Result) override {}
|
|
StringRef getID() const override { return "MyID"; }
|
|
} Callback;
|
|
Finder.addMatcher(decl(), &Callback);
|
|
std::unique_ptr<FrontendActionFactory> Factory(
|
|
newFrontendActionFactory(&Finder));
|
|
ASSERT_TRUE(tooling::runToolOnCode(Factory->create(), "int x;"));
|
|
|
|
EXPECT_EQ(1u, Records.size());
|
|
EXPECT_EQ("MyID", Records.begin()->getKey());
|
|
}
|
|
|
|
class VerifyStartOfTranslationUnit : public MatchFinder::MatchCallback {
|
|
public:
|
|
VerifyStartOfTranslationUnit() : Called(false) {}
|
|
void run(const MatchFinder::MatchResult &Result) override {
|
|
EXPECT_TRUE(Called);
|
|
}
|
|
void onStartOfTranslationUnit() override { Called = true; }
|
|
bool Called;
|
|
};
|
|
|
|
TEST(MatchFinder, InterceptsStartOfTranslationUnit) {
|
|
MatchFinder Finder;
|
|
VerifyStartOfTranslationUnit VerifyCallback;
|
|
Finder.addMatcher(decl(), &VerifyCallback);
|
|
std::unique_ptr<FrontendActionFactory> Factory(
|
|
newFrontendActionFactory(&Finder));
|
|
ASSERT_TRUE(tooling::runToolOnCode(Factory->create(), "int x;"));
|
|
EXPECT_TRUE(VerifyCallback.Called);
|
|
|
|
VerifyCallback.Called = false;
|
|
std::unique_ptr<ASTUnit> AST(tooling::buildASTFromCode("int x;"));
|
|
ASSERT_TRUE(AST.get());
|
|
Finder.matchAST(AST->getASTContext());
|
|
EXPECT_TRUE(VerifyCallback.Called);
|
|
}
|
|
|
|
class VerifyEndOfTranslationUnit : public MatchFinder::MatchCallback {
|
|
public:
|
|
VerifyEndOfTranslationUnit() : Called(false) {}
|
|
void run(const MatchFinder::MatchResult &Result) override {
|
|
EXPECT_FALSE(Called);
|
|
}
|
|
void onEndOfTranslationUnit() override { Called = true; }
|
|
bool Called;
|
|
};
|
|
|
|
TEST(MatchFinder, InterceptsEndOfTranslationUnit) {
|
|
MatchFinder Finder;
|
|
VerifyEndOfTranslationUnit VerifyCallback;
|
|
Finder.addMatcher(decl(), &VerifyCallback);
|
|
std::unique_ptr<FrontendActionFactory> Factory(
|
|
newFrontendActionFactory(&Finder));
|
|
ASSERT_TRUE(tooling::runToolOnCode(Factory->create(), "int x;"));
|
|
EXPECT_TRUE(VerifyCallback.Called);
|
|
|
|
VerifyCallback.Called = false;
|
|
std::unique_ptr<ASTUnit> AST(tooling::buildASTFromCode("int x;"));
|
|
ASSERT_TRUE(AST.get());
|
|
Finder.matchAST(AST->getASTContext());
|
|
EXPECT_TRUE(VerifyCallback.Called);
|
|
}
|
|
|
|
TEST(Matcher, matchOverEntireASTContext) {
|
|
std::unique_ptr<ASTUnit> AST =
|
|
clang::tooling::buildASTFromCode("struct { int *foo; };");
|
|
ASSERT_TRUE(AST.get());
|
|
auto PT = selectFirst<PointerType>(
|
|
"x", match(pointerType().bind("x"), AST->getASTContext()));
|
|
EXPECT_NE(nullptr, PT);
|
|
}
|
|
|
|
TEST(IsInlineMatcher, IsInline) {
|
|
EXPECT_TRUE(matches("void g(); inline void f();",
|
|
functionDecl(isInline(), hasName("f"))));
|
|
EXPECT_TRUE(matches("namespace n { inline namespace m {} }",
|
|
namespaceDecl(isInline(), hasName("m"))));
|
|
}
|
|
|
|
// FIXME: Figure out how to specify paths so the following tests pass on
|
|
// Windows.
|
|
#ifndef _WIN32
|
|
|
|
TEST(Matcher, IsExpansionInMainFileMatcher) {
|
|
EXPECT_TRUE(matches("class X {};",
|
|
recordDecl(hasName("X"), isExpansionInMainFile())));
|
|
EXPECT_TRUE(notMatches("", recordDecl(isExpansionInMainFile())));
|
|
FileContentMappings M;
|
|
M.push_back(std::make_pair("/other", "class X {};"));
|
|
EXPECT_TRUE(matchesConditionally("#include <other>\n",
|
|
recordDecl(isExpansionInMainFile()), false,
|
|
"-isystem/", M));
|
|
}
|
|
|
|
TEST(Matcher, IsExpansionInSystemHeader) {
|
|
FileContentMappings M;
|
|
M.push_back(std::make_pair("/other", "class X {};"));
|
|
EXPECT_TRUE(matchesConditionally(
|
|
"#include \"other\"\n", recordDecl(isExpansionInSystemHeader()), true,
|
|
"-isystem/", M));
|
|
EXPECT_TRUE(matchesConditionally("#include \"other\"\n",
|
|
recordDecl(isExpansionInSystemHeader()),
|
|
false, "-I/", M));
|
|
EXPECT_TRUE(notMatches("class X {};",
|
|
recordDecl(isExpansionInSystemHeader())));
|
|
EXPECT_TRUE(notMatches("", recordDecl(isExpansionInSystemHeader())));
|
|
}
|
|
|
|
TEST(Matcher, IsExpansionInFileMatching) {
|
|
FileContentMappings M;
|
|
M.push_back(std::make_pair("/foo", "class A {};"));
|
|
M.push_back(std::make_pair("/bar", "class B {};"));
|
|
EXPECT_TRUE(matchesConditionally(
|
|
"#include <foo>\n"
|
|
"#include <bar>\n"
|
|
"class X {};",
|
|
recordDecl(isExpansionInFileMatching("b.*"), hasName("B")), true,
|
|
"-isystem/", M));
|
|
EXPECT_TRUE(matchesConditionally(
|
|
"#include <foo>\n"
|
|
"#include <bar>\n"
|
|
"class X {};",
|
|
recordDecl(isExpansionInFileMatching("f.*"), hasName("X")), false,
|
|
"-isystem/", M));
|
|
}
|
|
|
|
#endif // _WIN32
|
|
|
|
} // end namespace ast_matchers
|
|
} // end namespace clang
|