124 lines
4.6 KiB
C++
124 lines
4.6 KiB
C++
//===-- ClangExpressionDeclMapTest.cpp ------------------------------------===//
|
|
//
|
|
// 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 "Plugins/ExpressionParser/Clang/ClangExpressionDeclMap.h"
|
|
#include "Plugins/ExpressionParser/Clang/ClangUtil.h"
|
|
#include "Plugins/TypeSystem/Clang/TypeSystemClang.h"
|
|
#include "TestingSupport/SubsystemRAII.h"
|
|
#include "TestingSupport/Symbol/ClangTestUtils.h"
|
|
#include "lldb/Host/FileSystem.h"
|
|
#include "lldb/Host/HostInfo.h"
|
|
#include "lldb/lldb-defines.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
using namespace lldb_private;
|
|
using namespace lldb;
|
|
|
|
namespace {
|
|
struct FakeClangExpressionDeclMap : public ClangExpressionDeclMap {
|
|
FakeClangExpressionDeclMap(const std::shared_ptr<ClangASTImporter> &importer)
|
|
: ClangExpressionDeclMap(false, nullptr, lldb::TargetSP(), importer,
|
|
nullptr) {
|
|
m_scratch_context = clang_utils::createAST();
|
|
}
|
|
std::unique_ptr<TypeSystemClang> m_scratch_context;
|
|
/// Adds a persistent decl that can be found by the ClangExpressionDeclMap
|
|
/// via GetPersistentDecl.
|
|
void AddPersistentDeclForTest(clang::NamedDecl *d) {
|
|
// The declaration needs to have '$' prefix in its name like every
|
|
// persistent declaration and must be inside the scratch AST context.
|
|
assert(d);
|
|
assert(d->getName().startswith("$"));
|
|
assert(&d->getASTContext() == &m_scratch_context->getASTContext());
|
|
m_persistent_decls[d->getName()] = d;
|
|
}
|
|
|
|
protected:
|
|
// ClangExpressionDeclMap hooks.
|
|
|
|
clang::NamedDecl *GetPersistentDecl(ConstString name) override {
|
|
// ClangExpressionDeclMap wants to know if there is a persistent decl
|
|
// with the given name. Check the
|
|
return m_persistent_decls.lookup(name.GetStringRef());
|
|
}
|
|
|
|
private:
|
|
/// The persistent decls in this test with their names as keys.
|
|
llvm::DenseMap<llvm::StringRef, clang::NamedDecl *> m_persistent_decls;
|
|
};
|
|
} // namespace
|
|
|
|
namespace {
|
|
struct ClangExpressionDeclMapTest : public testing::Test {
|
|
SubsystemRAII<FileSystem, HostInfo> subsystems;
|
|
|
|
/// The ClangASTImporter used during the test.
|
|
std::shared_ptr<ClangASTImporter> importer;
|
|
/// The ExpressionDeclMap for the current test case.
|
|
std::unique_ptr<FakeClangExpressionDeclMap> decl_map;
|
|
|
|
/// The target AST that lookup results should be imported to.
|
|
std::unique_ptr<TypeSystemClang> target_ast;
|
|
|
|
void SetUp() override {
|
|
importer = std::make_shared<ClangASTImporter>();
|
|
decl_map = std::make_unique<FakeClangExpressionDeclMap>(importer);
|
|
target_ast = clang_utils::createAST();
|
|
decl_map->InstallASTContext(*target_ast);
|
|
}
|
|
|
|
void TearDown() override {
|
|
importer.reset();
|
|
decl_map.reset();
|
|
target_ast.reset();
|
|
}
|
|
};
|
|
} // namespace
|
|
|
|
TEST_F(ClangExpressionDeclMapTest, TestUnknownIdentifierLookup) {
|
|
// Tests looking up an identifier that can't be found anywhere.
|
|
|
|
// Setup a NameSearchContext for 'foo'.
|
|
llvm::SmallVector<clang::NamedDecl *, 16> decls;
|
|
clang::DeclarationName name =
|
|
clang_utils::getDeclarationName(*target_ast, "foo");
|
|
const clang::DeclContext *dc = target_ast->GetTranslationUnitDecl();
|
|
NameSearchContext search(*target_ast, decls, name, dc);
|
|
|
|
decl_map->FindExternalVisibleDecls(search);
|
|
|
|
// This shouldn't exist so we should get no lookups.
|
|
EXPECT_EQ(0U, decls.size());
|
|
}
|
|
|
|
TEST_F(ClangExpressionDeclMapTest, TestPersistentDeclLookup) {
|
|
// Tests looking up a persistent decl from the scratch AST context.
|
|
|
|
// Create a '$persistent_class' record and add it as a persistent variable
|
|
// to the scratch AST context.
|
|
llvm::StringRef decl_name = "$persistent_class";
|
|
CompilerType persistent_type =
|
|
clang_utils::createRecord(*decl_map->m_scratch_context, decl_name);
|
|
decl_map->AddPersistentDeclForTest(ClangUtil::GetAsTagDecl(persistent_type));
|
|
|
|
// Setup a NameSearchContext for $persistent_class;
|
|
llvm::SmallVector<clang::NamedDecl *, 16> decls;
|
|
clang::DeclarationName name =
|
|
clang_utils::getDeclarationName(*target_ast, decl_name);
|
|
const clang::DeclContext *dc = target_ast->GetTranslationUnitDecl();
|
|
NameSearchContext search(*target_ast, decls, name, dc);
|
|
|
|
// Search and check that we found $persistent_class.
|
|
decl_map->FindExternalVisibleDecls(search);
|
|
EXPECT_EQ(1U, decls.size());
|
|
EXPECT_EQ(decl_name, decls.front()->getQualifiedNameAsString());
|
|
auto *record = llvm::cast<clang::RecordDecl>(decls.front());
|
|
// The class was minimally imported from the scratch AST context.
|
|
EXPECT_TRUE(record->hasExternalLexicalStorage());
|
|
}
|