120 lines · cpp
1//===-- RichManglingContextTest.cpp ---------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "lldb/Core/RichManglingContext.h"10 11#include "Plugins/Language/CPlusPlus/CPlusPlusLanguage.h"12#include "TestingSupport/SubsystemRAII.h"13#include "lldb/Utility/ConstString.h"14 15#include "gtest/gtest.h"16 17using namespace lldb;18using namespace lldb_private;19 20TEST(RichManglingContextTest, Basic) {21 RichManglingContext RMC;22 ConstString mangled("_ZN3foo3barEv");23 24 EXPECT_TRUE(RMC.FromItaniumName(mangled));25 EXPECT_FALSE(RMC.IsCtorOrDtor());26 EXPECT_EQ("foo", RMC.ParseFunctionDeclContextName());27 EXPECT_EQ("bar", RMC.ParseFunctionBaseName());28 EXPECT_EQ("foo::bar()", RMC.ParseFullName());29}30 31TEST(RichManglingContextTest, FromCxxMethodName) {32 33 SubsystemRAII<CPlusPlusLanguage> lang;34 35 RichManglingContext ItaniumRMC;36 ConstString mangled("_ZN3foo3barEv");37 EXPECT_TRUE(ItaniumRMC.FromItaniumName(mangled));38 39 RichManglingContext CxxMethodRMC;40 ConstString demangled("foo::bar()");41 EXPECT_TRUE(CxxMethodRMC.FromCxxMethodName(demangled));42 43 EXPECT_EQ(ItaniumRMC.IsCtorOrDtor(), CxxMethodRMC.IsCtorOrDtor());44 EXPECT_EQ(ItaniumRMC.ParseFunctionDeclContextName(),45 CxxMethodRMC.ParseFunctionDeclContextName());46 EXPECT_EQ(ItaniumRMC.ParseFunctionBaseName(),47 CxxMethodRMC.ParseFunctionBaseName());48 EXPECT_EQ(ItaniumRMC.ParseFullName(), CxxMethodRMC.ParseFullName());49 50 // Construct with a random name.51 {52 RichManglingContext CxxMethodRMC;53 EXPECT_TRUE(CxxMethodRMC.FromCxxMethodName(ConstString("X")));54 }55 56 // Construct with a function without a context.57 {58 RichManglingContext CxxMethodRMC;59 EXPECT_TRUE(CxxMethodRMC.FromCxxMethodName(60 ConstString("void * operator new(unsigned __int64)")));61 62 // We expect its context is empty.63 EXPECT_TRUE(CxxMethodRMC.ParseFunctionDeclContextName().empty());64 }65}66 67TEST(RichManglingContextTest, SwitchProvider) {68 RichManglingContext RMC;69 llvm::StringRef mangled = "_ZN3foo3barEv";70 llvm::StringRef demangled = "foo::bar()";71 72 EXPECT_TRUE(RMC.FromItaniumName(ConstString(mangled)));73 EXPECT_EQ("foo::bar()", RMC.ParseFullName());74 75 SubsystemRAII<CPlusPlusLanguage> lang;76 77 EXPECT_TRUE(RMC.FromCxxMethodName(ConstString(demangled)));78 EXPECT_EQ("foo::bar()", RMC.ParseFullName());79 80 EXPECT_TRUE(RMC.FromItaniumName(ConstString(mangled)));81 EXPECT_EQ("foo::bar()", RMC.ParseFullName());82}83 84TEST(RichManglingContextTest, IPDRealloc) {85 // The demangled name should fit into the Itanium default buffer.86 const char *ShortMangled = "_ZN3foo3barEv";87 88 // The demangled name for this will certainly not fit into the default buffer.89 const char *LongMangled =90 "_ZNK3shk6detail17CallbackPublisherIZNS_5ThrowERKNSt15__exception_"91 "ptr13exception_ptrEEUlOT_E_E9SubscribeINS0_9ConcatMapINS0_"92 "18CallbackSubscriberIZNS_6GetAllIiNS1_IZZNS_9ConcatMapIZNS_6ConcatIJNS1_"93 "IZZNS_3MapIZZNS_7IfEmptyIS9_EEDaS7_ENKUlS6_E_clINS1_IZZNS_4TakeIiEESI_"94 "S7_ENKUlS6_E_clINS1_IZZNS_6FilterIZNS_9ElementAtEmEUlS7_E_EESI_S7_"95 "ENKUlS6_E_clINS1_IZZNSL_ImEESI_S7_ENKUlS6_E_clINS1_IZNS_4FromINS0_"96 "22InfiniteRangeContainerIiEEEESI_S7_EUlS7_E_EEEESI_S6_EUlS7_E_EEEESI_S6_"97 "EUlS7_E_EEEESI_S6_EUlS7_E_EEEESI_S6_EUlS7_E_EESI_S7_ENKUlS6_E_clIS14_"98 "EESI_S6_EUlS7_E_EERNS1_IZZNSH_IS9_EESI_S7_ENKSK_IS14_EESI_S6_EUlS7_E0_"99 "EEEEESI_DpOT_EUlS7_E_EESI_S7_ENKUlS6_E_clINS1_IZNS_5StartIJZNS_"100 "4JustIJS19_S1C_EEESI_S1F_EUlvE_ZNS1K_IJS19_S1C_EEESI_S1F_EUlvE0_EEESI_"101 "S1F_EUlS7_E_EEEESI_S6_EUlS7_E_EEEESt6vectorIS6_SaIS6_EERKT0_NS_"102 "12ElementCountEbEUlS7_E_ZNSD_IiS1Q_EES1T_S1W_S1X_bEUlOS3_E_ZNSD_IiS1Q_"103 "EES1T_S1W_S1X_bEUlvE_EES1G_S1O_E25ConcatMapValuesSubscriberEEEDaS7_";104 105 RichManglingContext RMC;106 107 // Demangle the short one.108 EXPECT_TRUE(RMC.FromItaniumName(ConstString(ShortMangled)));109 const char *ShortDemangled = RMC.ParseFullName().data();110 111 // Demangle the long one.112 EXPECT_TRUE(RMC.FromItaniumName(ConstString(LongMangled)));113 const char *LongDemangled = RMC.ParseFullName().data();114 115 // Make sure a new buffer was allocated or the default buffer was extended.116 bool AllocatedNewBuffer = (ShortDemangled != LongDemangled);117 bool ExtendedExistingBuffer = (strlen(LongDemangled) > 2048);118 EXPECT_TRUE(AllocatedNewBuffer || ExtendedExistingBuffer);119}120