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//===------------------------- incomplete_type.cpp --------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// http://mentorembedded.github.io/cxx-abi/abi.html#rtti-layout
// Two abi::__pbase_type_info objects can always be compared for equality
// (i.e. of the types represented) or ordering by comparison of their name
// NTBS addresses. In addition, unless either or both have either of the
// incomplete flags set, equality can be tested by comparing the type_info
// addresses.
// UNSUPPORTED: libcxxabi-no-exceptions
// NOTE: Pass -lc++abi explicitly and before -lc++ so that -lc++ doesn't drag
// in the system libc++abi installation on OS X. (DYLD_LIBRARY_PATH is ignored
// for shell tests because of Apple security features).
// RUN: %cxx %flags %compile_flags -c %s -o %t.one.o
// RUN: %cxx %flags %compile_flags -c %s -o %t.two.o -DTU_ONE
// RUN: %cxx %flags %t.one.o %t.two.o -lc++abi %link_flags -o %t.exe
// RUN: %t.exe
#include <stdio.h>
#include <cstring>
#include <cassert>
#include <typeinfo>
// Check that the addresses of the typeinfo differ but still compare equal
// via their NTBS.
inline void
AssertIncompleteTypeInfoEquals(std::type_info const& LHS, std::type_info const& RHS)
{
assert(&LHS != &RHS);
assert(strcmp(LHS.name(), RHS.name()) == 0);
}
struct NeverDefined;
void ThrowNeverDefinedMP();
std::type_info const& ReturnTypeInfoNeverDefinedMP();
struct IncompleteAtThrow;
void ThrowIncompleteMP();
void ThrowIncompletePP();
void ThrowIncompletePMP();
std::type_info const& ReturnTypeInfoIncompleteMP();
std::type_info const& ReturnTypeInfoIncompletePP();
struct CompleteAtThrow;
void ThrowCompleteMP();
void ThrowCompletePP();
void ThrowCompletePMP();
std::type_info const& ReturnTypeInfoCompleteMP();
std::type_info const& ReturnTypeInfoCompletePP();
void ThrowNullptr();
#ifndef TU_ONE
void ThrowNeverDefinedMP() { throw (int NeverDefined::*)nullptr; }
std::type_info const& ReturnTypeInfoNeverDefinedMP() { return typeid(int NeverDefined::*); }
void ThrowIncompleteMP() { throw (int IncompleteAtThrow::*)nullptr; }
void ThrowIncompletePP() { throw (IncompleteAtThrow**)nullptr; }
void ThrowIncompletePMP() { throw (int IncompleteAtThrow::**)nullptr; }
std::type_info const& ReturnTypeInfoIncompleteMP() { return typeid(int IncompleteAtThrow::*); }
std::type_info const& ReturnTypeInfoIncompletePP() { return typeid(IncompleteAtThrow**); }
struct CompleteAtThrow {};
void ThrowCompleteMP() { throw (int CompleteAtThrow::*)nullptr; }
void ThrowCompletePP() { throw (CompleteAtThrow**)nullptr; }
void ThrowCompletePMP() { throw (int CompleteAtThrow::**)nullptr; }
std::type_info const& ReturnTypeInfoCompleteMP() { return typeid(int CompleteAtThrow::*); }
std::type_info const& ReturnTypeInfoCompletePP() { return typeid(CompleteAtThrow**); }
void ThrowNullptr() { throw nullptr; }
#else
struct IncompleteAtThrow {};
int main() {
AssertIncompleteTypeInfoEquals(ReturnTypeInfoNeverDefinedMP(), typeid(int NeverDefined::*));
try {
ThrowNeverDefinedMP();
assert(false);
} catch (int IncompleteAtThrow::*) {
assert(false);
} catch (int CompleteAtThrow::*) {
assert(false);
} catch (int NeverDefined::*p) {
assert(!p);
}
catch(...) { assert(!"FAIL: Didn't catch NeverDefined::*" ); }
AssertIncompleteTypeInfoEquals(ReturnTypeInfoIncompleteMP(), typeid(int IncompleteAtThrow::*));
try {
ThrowIncompleteMP();
assert(false);
} catch (CompleteAtThrow**) {
assert(false);
} catch (int CompleteAtThrow::*) {
assert(false);
} catch (IncompleteAtThrow**) {
assert(false);
} catch (int IncompleteAtThrow::*p) {
assert(!p);
}
catch(...) { assert(!"FAIL: Didn't catch IncompleteAtThrow::*" ); }
AssertIncompleteTypeInfoEquals(ReturnTypeInfoIncompletePP(), typeid(IncompleteAtThrow**));
try {
ThrowIncompletePP();
assert(false);
} catch (int IncompleteAtThrow::*) {
assert(false);
} catch (IncompleteAtThrow** p) {
assert(!p);
}
catch(...) { assert(!"FAIL: Didn't catch IncompleteAtThrow**" ); }
try {
ThrowIncompletePMP();
assert(false);
} catch (int IncompleteAtThrow::*) {
assert(false);
} catch (IncompleteAtThrow**) {
assert(false);
} catch (int IncompleteAtThrow::**p) {
assert(!p);
}
catch(...) { assert(!"FAIL: Didn't catch IncompleteAtThrow::**" ); }
AssertIncompleteTypeInfoEquals(ReturnTypeInfoCompleteMP(), typeid(int CompleteAtThrow::*));
try {
ThrowCompleteMP();
assert(false);
} catch (IncompleteAtThrow**) {
assert(false);
} catch (int IncompleteAtThrow::*) {
assert(false);
} catch (CompleteAtThrow**) {
assert(false);
} catch (int CompleteAtThrow::*p) {
assert(!p);
}
catch(...) { assert(!"FAIL: Didn't catch CompleteAtThrow::" ); }
AssertIncompleteTypeInfoEquals(ReturnTypeInfoCompletePP(), typeid(CompleteAtThrow**));
try {
ThrowCompletePP();
assert(false);
} catch (IncompleteAtThrow**) {
assert(false);
} catch (int IncompleteAtThrow::*) {
assert(false);
} catch (int CompleteAtThrow::*) {
assert(false);
} catch (CompleteAtThrow**p) {
assert(!p);
}
catch(...) { assert(!"FAIL: Didn't catch CompleteAtThrow**" ); }
try {
ThrowCompletePMP();
assert(false);
} catch (IncompleteAtThrow**) {
assert(false);
} catch (int IncompleteAtThrow::*) {
assert(false);
} catch (int CompleteAtThrow::*) {
assert(false);
} catch (CompleteAtThrow**) {
assert(false);
} catch (int CompleteAtThrow::**p) {
assert(!p);
}
catch(...) { assert(!"FAIL: Didn't catch CompleteAtThrow::**" ); }
#if __cplusplus >= 201103L
// Catch nullptr as complete type
try {
ThrowNullptr();
} catch (int IncompleteAtThrow::*p) {
assert(!p);
}
catch(...) { assert(!"FAIL: Didn't catch nullptr as IncompleteAtThrow::*" ); }
// Catch nullptr as an incomplete type
try {
ThrowNullptr();
} catch (int CompleteAtThrow::*p) {
assert(!p);
}
catch(...) { assert(!"FAIL: Didn't catch nullptr as CompleteAtThrow::*" ); }
// Catch nullptr as a type that is never complete.
try {
ThrowNullptr();
} catch (int NeverDefined::*p) {
assert(!p);
}
catch(...) { assert(!"FAIL: Didn't catch nullptr as NeverDefined::*" ); }
#endif
}
#endif
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