2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
140 lines
5.0 KiB
C++
140 lines
5.0 KiB
C++
//===-- RichManglingContextTest.cpp -----------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Core/RichManglingContext.h"
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#include "lldb/Utility/ConstString.h"
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#include "gtest/gtest.h"
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using namespace lldb;
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using namespace lldb_private;
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TEST(RichManglingContextTest, Basic) {
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RichManglingContext RMC;
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ConstString mangled("_ZN3foo3barEv");
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EXPECT_TRUE(RMC.FromItaniumName(mangled));
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EXPECT_TRUE(RMC.IsFunction());
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EXPECT_FALSE(RMC.IsCtorOrDtor());
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RMC.ParseFunctionDeclContextName();
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EXPECT_EQ("foo", RMC.GetBufferRef());
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RMC.ParseFunctionBaseName();
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EXPECT_EQ("bar", RMC.GetBufferRef());
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RMC.ParseFullName();
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EXPECT_EQ("foo::bar()", RMC.GetBufferRef());
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}
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TEST(RichManglingContextTest, FromCxxMethodName) {
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RichManglingContext ItaniumRMC;
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ConstString mangled("_ZN3foo3barEv");
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EXPECT_TRUE(ItaniumRMC.FromItaniumName(mangled));
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RichManglingContext CxxMethodRMC;
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ConstString demangled("foo::bar()");
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EXPECT_TRUE(CxxMethodRMC.FromCxxMethodName(demangled));
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EXPECT_TRUE(ItaniumRMC.IsFunction() == CxxMethodRMC.IsFunction());
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EXPECT_TRUE(ItaniumRMC.IsCtorOrDtor() == CxxMethodRMC.IsCtorOrDtor());
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ItaniumRMC.ParseFunctionDeclContextName();
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CxxMethodRMC.ParseFunctionDeclContextName();
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EXPECT_TRUE(ItaniumRMC.GetBufferRef() == CxxMethodRMC.GetBufferRef());
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ItaniumRMC.ParseFunctionBaseName();
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CxxMethodRMC.ParseFunctionBaseName();
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EXPECT_TRUE(ItaniumRMC.GetBufferRef() == CxxMethodRMC.GetBufferRef());
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ItaniumRMC.ParseFullName();
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CxxMethodRMC.ParseFullName();
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EXPECT_TRUE(ItaniumRMC.GetBufferRef() == CxxMethodRMC.GetBufferRef());
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// Construct with a random name.
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{
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RichManglingContext CxxMethodRMC;
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EXPECT_TRUE(CxxMethodRMC.FromCxxMethodName(ConstString("X")));
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// We expect it is not a function.
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EXPECT_FALSE(CxxMethodRMC.IsFunction());
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}
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// Construct with a function without a context.
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{
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RichManglingContext CxxMethodRMC;
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EXPECT_TRUE(CxxMethodRMC.FromCxxMethodName(
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ConstString("void * operator new(unsigned __int64)")));
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// We expect it is a function.
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EXPECT_TRUE(CxxMethodRMC.IsFunction());
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// We expect its context is empty.
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CxxMethodRMC.ParseFunctionDeclContextName();
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EXPECT_TRUE(CxxMethodRMC.GetBufferRef().empty());
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}
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}
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TEST(RichManglingContextTest, SwitchProvider) {
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RichManglingContext RMC;
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llvm::StringRef mangled = "_ZN3foo3barEv";
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llvm::StringRef demangled = "foo::bar()";
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EXPECT_TRUE(RMC.FromItaniumName(ConstString(mangled)));
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RMC.ParseFullName();
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EXPECT_EQ("foo::bar()", RMC.GetBufferRef());
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EXPECT_TRUE(RMC.FromCxxMethodName(ConstString(demangled)));
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RMC.ParseFullName();
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EXPECT_EQ("foo::bar()", RMC.GetBufferRef());
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EXPECT_TRUE(RMC.FromItaniumName(ConstString(mangled)));
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RMC.ParseFullName();
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EXPECT_EQ("foo::bar()", RMC.GetBufferRef());
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}
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TEST(RichManglingContextTest, IPDRealloc) {
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// The demangled name should fit into the Itanium default buffer.
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const char *ShortMangled = "_ZN3foo3barEv";
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// The demangled name for this will certainly not fit into the default buffer.
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const char *LongMangled =
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"_ZNK3shk6detail17CallbackPublisherIZNS_5ThrowERKNSt15__exception_"
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"ptr13exception_ptrEEUlOT_E_E9SubscribeINS0_9ConcatMapINS0_"
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"18CallbackSubscriberIZNS_6GetAllIiNS1_IZZNS_9ConcatMapIZNS_6ConcatIJNS1_"
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"IZZNS_3MapIZZNS_7IfEmptyIS9_EEDaS7_ENKUlS6_E_clINS1_IZZNS_4TakeIiEESI_"
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"S7_ENKUlS6_E_clINS1_IZZNS_6FilterIZNS_9ElementAtEmEUlS7_E_EESI_S7_"
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"ENKUlS6_E_clINS1_IZZNSL_ImEESI_S7_ENKUlS6_E_clINS1_IZNS_4FromINS0_"
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"22InfiniteRangeContainerIiEEEESI_S7_EUlS7_E_EEEESI_S6_EUlS7_E_EEEESI_S6_"
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"EUlS7_E_EEEESI_S6_EUlS7_E_EEEESI_S6_EUlS7_E_EESI_S7_ENKUlS6_E_clIS14_"
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"EESI_S6_EUlS7_E_EERNS1_IZZNSH_IS9_EESI_S7_ENKSK_IS14_EESI_S6_EUlS7_E0_"
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"EEEEESI_DpOT_EUlS7_E_EESI_S7_ENKUlS6_E_clINS1_IZNS_5StartIJZNS_"
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"4JustIJS19_S1C_EEESI_S1F_EUlvE_ZNS1K_IJS19_S1C_EEESI_S1F_EUlvE0_EEESI_"
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"S1F_EUlS7_E_EEEESI_S6_EUlS7_E_EEEESt6vectorIS6_SaIS6_EERKT0_NS_"
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"12ElementCountEbEUlS7_E_ZNSD_IiS1Q_EES1T_S1W_S1X_bEUlOS3_E_ZNSD_IiS1Q_"
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"EES1T_S1W_S1X_bEUlvE_EES1G_S1O_E25ConcatMapValuesSubscriberEEEDaS7_";
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RichManglingContext RMC;
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// Demangle the short one.
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EXPECT_TRUE(RMC.FromItaniumName(ConstString(ShortMangled)));
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RMC.ParseFullName();
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const char *ShortDemangled = RMC.GetBufferRef().data();
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// Demangle the long one.
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EXPECT_TRUE(RMC.FromItaniumName(ConstString(LongMangled)));
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RMC.ParseFullName();
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const char *LongDemangled = RMC.GetBufferRef().data();
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// Make sure a new buffer was allocated or the default buffer was extended.
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bool AllocatedNewBuffer = (ShortDemangled != LongDemangled);
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bool ExtendedExistingBuffer = (strlen(LongDemangled) > 2048);
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EXPECT_TRUE(AllocatedNewBuffer || ExtendedExistingBuffer);
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}
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