forked from OSchip/llvm-project
316 lines
17 KiB
C++
316 lines
17 KiB
C++
//===-- TestClangASTContext.cpp ---------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "gtest/gtest.h"
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#include "lldb/Host/HostInfo.h"
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#include "lldb/Symbol/ClangASTContext.h"
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#include "lldb/Symbol/ClangUtil.h"
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#include "lldb/Symbol/Declaration.h"
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#include "lldb/Symbol/GoASTContext.h"
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using namespace clang;
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using namespace lldb;
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using namespace lldb_private;
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class TestClangASTContext : public testing::Test
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{
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public:
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static void
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SetUpTestCase()
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{
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HostInfo::Initialize();
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}
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static void
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TearDownTestCase()
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{
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HostInfo::Terminate();
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}
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virtual void
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SetUp() override
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{
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std::string triple = HostInfo::GetTargetTriple();
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m_ast.reset(new ClangASTContext(triple.c_str()));
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}
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virtual void
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TearDown() override
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{
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m_ast.reset();
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}
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protected:
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std::unique_ptr<ClangASTContext> m_ast;
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QualType
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GetBasicQualType(BasicType type) const
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{
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return ClangUtil::GetQualType(m_ast->GetBasicTypeFromAST(type));
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}
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QualType
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GetBasicQualType(const char *name) const
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{
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return ClangUtil::GetQualType(m_ast->GetBuiltinTypeByName(ConstString(name)));
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}
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};
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TEST_F(TestClangASTContext, TestGetBasicTypeFromEnum)
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{
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clang::ASTContext *context = m_ast->getASTContext();
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeBool), context->BoolTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeChar), context->CharTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeChar16), context->Char16Ty));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeChar32), context->Char32Ty));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeDouble), context->DoubleTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeDoubleComplex), context->DoubleComplexTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeFloat), context->FloatTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeFloatComplex), context->FloatComplexTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeHalf), context->HalfTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeInt), context->IntTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeInt128), context->Int128Ty));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeLong), context->LongTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeLongDouble), context->LongDoubleTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeLongDoubleComplex), context->LongDoubleComplexTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeLongLong), context->LongLongTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeNullPtr), context->NullPtrTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeObjCClass), context->getObjCClassType()));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeObjCID), context->getObjCIdType()));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeObjCSel), context->getObjCSelType()));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeShort), context->ShortTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeSignedChar), context->SignedCharTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeUnsignedChar), context->UnsignedCharTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeUnsignedInt), context->UnsignedIntTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeUnsignedInt128), context->UnsignedInt128Ty));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeUnsignedLong), context->UnsignedLongTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeUnsignedLongLong), context->UnsignedLongLongTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeUnsignedShort), context->UnsignedShortTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeVoid), context->VoidTy));
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EXPECT_TRUE(context->hasSameType(GetBasicQualType(eBasicTypeWChar), context->WCharTy));
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}
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TEST_F(TestClangASTContext, TestGetBasicTypeFromName)
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{
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EXPECT_EQ(GetBasicQualType(eBasicTypeChar), GetBasicQualType("char"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeSignedChar), GetBasicQualType("signed char"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeUnsignedChar), GetBasicQualType("unsigned char"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeWChar), GetBasicQualType("wchar_t"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeSignedWChar), GetBasicQualType("signed wchar_t"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeUnsignedWChar), GetBasicQualType("unsigned wchar_t"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeShort), GetBasicQualType("short"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeShort), GetBasicQualType("short int"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeUnsignedShort), GetBasicQualType("unsigned short"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeUnsignedShort), GetBasicQualType("unsigned short int"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeInt), GetBasicQualType("int"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeInt), GetBasicQualType("signed int"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeUnsignedInt), GetBasicQualType("unsigned int"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeUnsignedInt), GetBasicQualType("unsigned"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeLong), GetBasicQualType("long"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeLong), GetBasicQualType("long int"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeUnsignedLong), GetBasicQualType("unsigned long"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeUnsignedLong), GetBasicQualType("unsigned long int"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeLongLong), GetBasicQualType("long long"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeLongLong), GetBasicQualType("long long int"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeUnsignedLongLong), GetBasicQualType("unsigned long long"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeUnsignedLongLong), GetBasicQualType("unsigned long long int"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeInt128), GetBasicQualType("__int128_t"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeUnsignedInt128), GetBasicQualType("__uint128_t"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeVoid), GetBasicQualType("void"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeBool), GetBasicQualType("bool"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeFloat), GetBasicQualType("float"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeDouble), GetBasicQualType("double"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeLongDouble), GetBasicQualType("long double"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeObjCID), GetBasicQualType("id"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeObjCSel), GetBasicQualType("SEL"));
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EXPECT_EQ(GetBasicQualType(eBasicTypeNullPtr), GetBasicQualType("nullptr"));
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}
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void
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VerifyEncodingAndBitSize(clang::ASTContext *context, lldb::Encoding encoding, int bit_size)
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{
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CompilerType type = ClangASTContext::GetBuiltinTypeForEncodingAndBitSize(context, encoding, bit_size);
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EXPECT_TRUE(type.IsValid());
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QualType qtype = ClangUtil::GetQualType(type);
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EXPECT_FALSE(qtype.isNull());
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if (qtype.isNull())
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return;
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uint64_t actual_size = context->getTypeSize(qtype);
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EXPECT_EQ(bit_size, actual_size);
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const clang::Type *type_ptr = qtype.getTypePtr();
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EXPECT_NE(nullptr, type_ptr);
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if (!type_ptr)
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return;
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EXPECT_TRUE(type_ptr->isBuiltinType());
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if (encoding == eEncodingSint)
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EXPECT_TRUE(type_ptr->isSignedIntegerType());
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else if (encoding == eEncodingUint)
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EXPECT_TRUE(type_ptr->isUnsignedIntegerType());
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else if (encoding == eEncodingIEEE754)
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EXPECT_TRUE(type_ptr->isFloatingType());
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}
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TEST_F(TestClangASTContext, TestBuiltinTypeForEncodingAndBitSize)
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{
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clang::ASTContext *context = m_ast->getASTContext();
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// Make sure we can get types of every possible size in every possible encoding.
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// We can't make any guarantee about which specific type we get, because the standard
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// isn't that specific. We only need to make sure the compiler hands us some type that
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// is both a builtin type and matches the requested bit size.
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VerifyEncodingAndBitSize(context, eEncodingSint, 8);
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VerifyEncodingAndBitSize(context, eEncodingSint, 16);
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VerifyEncodingAndBitSize(context, eEncodingSint, 32);
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VerifyEncodingAndBitSize(context, eEncodingSint, 64);
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VerifyEncodingAndBitSize(context, eEncodingSint, 128);
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VerifyEncodingAndBitSize(context, eEncodingUint, 8);
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VerifyEncodingAndBitSize(context, eEncodingUint, 16);
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VerifyEncodingAndBitSize(context, eEncodingUint, 32);
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VerifyEncodingAndBitSize(context, eEncodingUint, 64);
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VerifyEncodingAndBitSize(context, eEncodingUint, 128);
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VerifyEncodingAndBitSize(context, eEncodingIEEE754, 32);
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VerifyEncodingAndBitSize(context, eEncodingIEEE754, 64);
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}
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TEST_F(TestClangASTContext, TestIsClangType)
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{
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clang::ASTContext *context = m_ast->getASTContext();
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lldb::opaque_compiler_type_t bool_ctype = ClangASTContext::GetOpaqueCompilerType(context, lldb::eBasicTypeBool);
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CompilerType bool_type(m_ast.get(), bool_ctype);
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CompilerType record_type = m_ast->CreateRecordType(nullptr, lldb::eAccessPublic, "FooRecord", clang::TTK_Struct,
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lldb::eLanguageTypeC_plus_plus, nullptr);
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// Clang builtin type and record type should pass
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EXPECT_TRUE(ClangUtil::IsClangType(bool_type));
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EXPECT_TRUE(ClangUtil::IsClangType(record_type));
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// Default constructed type should fail
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EXPECT_FALSE(ClangUtil::IsClangType(CompilerType()));
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// Go type should fail
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GoASTContext go_ast;
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CompilerType go_type(&go_ast, bool_ctype);
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EXPECT_FALSE(ClangUtil::IsClangType(go_type));
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}
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TEST_F(TestClangASTContext, TestRemoveFastQualifiers)
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{
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CompilerType record_type = m_ast->CreateRecordType(nullptr, lldb::eAccessPublic, "FooRecord", clang::TTK_Struct,
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lldb::eLanguageTypeC_plus_plus, nullptr);
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QualType qt;
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qt = ClangUtil::GetQualType(record_type);
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EXPECT_EQ(0, qt.getLocalFastQualifiers());
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record_type = record_type.AddConstModifier();
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record_type = record_type.AddVolatileModifier();
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record_type = record_type.AddRestrictModifier();
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qt = ClangUtil::GetQualType(record_type);
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EXPECT_NE(0, qt.getLocalFastQualifiers());
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record_type = ClangUtil::RemoveFastQualifiers(record_type);
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qt = ClangUtil::GetQualType(record_type);
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EXPECT_EQ(0, qt.getLocalFastQualifiers());
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}
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TEST_F(TestClangASTContext, TestConvertAccessTypeToAccessSpecifier)
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{
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EXPECT_EQ(AS_none, ClangASTContext::ConvertAccessTypeToAccessSpecifier(eAccessNone));
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EXPECT_EQ(AS_none, ClangASTContext::ConvertAccessTypeToAccessSpecifier(eAccessPackage));
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EXPECT_EQ(AS_public, ClangASTContext::ConvertAccessTypeToAccessSpecifier(eAccessPublic));
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EXPECT_EQ(AS_private, ClangASTContext::ConvertAccessTypeToAccessSpecifier(eAccessPrivate));
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EXPECT_EQ(AS_protected, ClangASTContext::ConvertAccessTypeToAccessSpecifier(eAccessProtected));
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}
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TEST_F(TestClangASTContext, TestUnifyAccessSpecifiers)
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{
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// Unifying two of the same type should return the same type
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EXPECT_EQ(AS_public, ClangASTContext::UnifyAccessSpecifiers(AS_public, AS_public));
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EXPECT_EQ(AS_private, ClangASTContext::UnifyAccessSpecifiers(AS_private, AS_private));
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EXPECT_EQ(AS_protected, ClangASTContext::UnifyAccessSpecifiers(AS_protected, AS_protected));
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// Otherwise the result should be the strictest of the two.
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EXPECT_EQ(AS_private, ClangASTContext::UnifyAccessSpecifiers(AS_private, AS_public));
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EXPECT_EQ(AS_private, ClangASTContext::UnifyAccessSpecifiers(AS_private, AS_protected));
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EXPECT_EQ(AS_private, ClangASTContext::UnifyAccessSpecifiers(AS_public, AS_private));
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EXPECT_EQ(AS_private, ClangASTContext::UnifyAccessSpecifiers(AS_protected, AS_private));
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EXPECT_EQ(AS_protected, ClangASTContext::UnifyAccessSpecifiers(AS_protected, AS_public));
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EXPECT_EQ(AS_protected, ClangASTContext::UnifyAccessSpecifiers(AS_public, AS_protected));
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// None is stricter than everything (by convention)
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EXPECT_EQ(AS_none, ClangASTContext::UnifyAccessSpecifiers(AS_none, AS_public));
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EXPECT_EQ(AS_none, ClangASTContext::UnifyAccessSpecifiers(AS_none, AS_protected));
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EXPECT_EQ(AS_none, ClangASTContext::UnifyAccessSpecifiers(AS_none, AS_private));
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EXPECT_EQ(AS_none, ClangASTContext::UnifyAccessSpecifiers(AS_public, AS_none));
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EXPECT_EQ(AS_none, ClangASTContext::UnifyAccessSpecifiers(AS_protected, AS_none));
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EXPECT_EQ(AS_none, ClangASTContext::UnifyAccessSpecifiers(AS_private, AS_none));
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}
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TEST_F(TestClangASTContext, TestRecordHasFields)
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{
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CompilerType int_type = ClangASTContext::GetBasicType(m_ast->getASTContext(), eBasicTypeInt);
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// Test that a record with no fields returns false
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CompilerType empty_base = m_ast->CreateRecordType(nullptr, lldb::eAccessPublic, "EmptyBase", clang::TTK_Struct,
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lldb::eLanguageTypeC_plus_plus, nullptr);
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ClangASTContext::StartTagDeclarationDefinition(empty_base);
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ClangASTContext::CompleteTagDeclarationDefinition(empty_base);
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RecordDecl *empty_base_decl = ClangASTContext::GetAsRecordDecl(empty_base);
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EXPECT_NE(nullptr, empty_base_decl);
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EXPECT_FALSE(ClangASTContext::RecordHasFields(empty_base_decl));
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// Test that a record with direct fields returns true
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CompilerType non_empty_base = m_ast->CreateRecordType(nullptr, lldb::eAccessPublic, "NonEmptyBase",
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clang::TTK_Struct, lldb::eLanguageTypeC_plus_plus, nullptr);
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ClangASTContext::StartTagDeclarationDefinition(non_empty_base);
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FieldDecl *non_empty_base_field_decl =
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m_ast->AddFieldToRecordType(non_empty_base, "MyField", int_type, eAccessPublic, 0);
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ClangASTContext::CompleteTagDeclarationDefinition(non_empty_base);
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RecordDecl *non_empty_base_decl = ClangASTContext::GetAsRecordDecl(non_empty_base);
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EXPECT_NE(nullptr, non_empty_base_decl);
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EXPECT_NE(nullptr, non_empty_base_field_decl);
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EXPECT_TRUE(ClangASTContext::RecordHasFields(non_empty_base_decl));
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// Test that a record with no direct fields, but fields in a base returns true
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CompilerType empty_derived = m_ast->CreateRecordType(nullptr, lldb::eAccessPublic, "EmptyDerived",
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clang::TTK_Struct, lldb::eLanguageTypeC_plus_plus, nullptr);
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ClangASTContext::StartTagDeclarationDefinition(empty_derived);
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CXXBaseSpecifier *non_empty_base_spec =
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m_ast->CreateBaseClassSpecifier(non_empty_base.GetOpaqueQualType(), lldb::eAccessPublic, false, false);
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bool result = m_ast->SetBaseClassesForClassType(empty_derived.GetOpaqueQualType(), &non_empty_base_spec, 1);
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ClangASTContext::CompleteTagDeclarationDefinition(empty_derived);
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EXPECT_TRUE(result);
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CXXRecordDecl *empty_derived_non_empty_base_cxx_decl = m_ast->GetAsCXXRecordDecl(empty_derived.GetOpaqueQualType());
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RecordDecl *empty_derived_non_empty_base_decl = ClangASTContext::GetAsRecordDecl(empty_derived);
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EXPECT_EQ(1, ClangASTContext::GetNumBaseClasses(empty_derived_non_empty_base_cxx_decl, false));
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EXPECT_TRUE(ClangASTContext::RecordHasFields(empty_derived_non_empty_base_decl));
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// Test that a record with no direct fields, but fields in a virtual base returns true
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CompilerType empty_derived2 = m_ast->CreateRecordType(nullptr, lldb::eAccessPublic, "EmptyDerived2",
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clang::TTK_Struct, lldb::eLanguageTypeC_plus_plus, nullptr);
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ClangASTContext::StartTagDeclarationDefinition(empty_derived2);
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CXXBaseSpecifier *non_empty_vbase_spec =
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m_ast->CreateBaseClassSpecifier(non_empty_base.GetOpaqueQualType(), lldb::eAccessPublic, true, false);
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result = m_ast->SetBaseClassesForClassType(empty_derived2.GetOpaqueQualType(), &non_empty_vbase_spec, 1);
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ClangASTContext::CompleteTagDeclarationDefinition(empty_derived2);
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EXPECT_TRUE(result);
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CXXRecordDecl *empty_derived_non_empty_vbase_cxx_decl =
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m_ast->GetAsCXXRecordDecl(empty_derived2.GetOpaqueQualType());
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RecordDecl *empty_derived_non_empty_vbase_decl = ClangASTContext::GetAsRecordDecl(empty_derived2);
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EXPECT_EQ(1, ClangASTContext::GetNumBaseClasses(empty_derived_non_empty_vbase_cxx_decl, false));
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EXPECT_TRUE(ClangASTContext::RecordHasFields(empty_derived_non_empty_vbase_decl));
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}
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