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//===- unittests/AST/DeclTest.cpp --- Declaration tests -------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Unit tests for Decl nodes in the AST.
//
//===----------------------------------------------------------------------===//
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/Tooling/Tooling.h"
#include "gtest/gtest.h"
using namespace clang::ast_matchers;
using namespace clang::tooling;
TEST(Decl, CleansUpAPValues) {
MatchFinder Finder;
llvm::OwningPtr<FrontendActionFactory> Factory(
newFrontendActionFactory(&Finder));
// This is a regression test for a memory leak in APValues for structs that
// allocate memory. This test only fails if run under valgrind with full leak
// checking enabled.
std::vector<std::string> Args(1, "-std=c++11");
Args.push_back("-fno-ms-extensions");
ASSERT_TRUE(runToolOnCodeWithArgs(
Factory->create(),
"struct X { int a; }; constexpr X x = { 42 };"
"union Y { constexpr Y(int a) : a(a) {} int a; }; constexpr Y y = { 42 };"
"constexpr int z[2] = { 42, 43 };"
"constexpr int __attribute__((vector_size(16))) v1 = {};"
"\n#ifdef __SIZEOF_INT128__\n"
"constexpr __uint128_t large_int = 0xffffffffffffffff;"
"constexpr __uint128_t small_int = 1;"
"\n#endif\n"
"constexpr double d1 = 42.42;"
"constexpr long double d2 = 42.42;"
"constexpr _Complex long double c1 = 42.0i;"
"constexpr _Complex long double c2 = 42.0;"
"template<int N> struct A : A<N-1> {};"
"template<> struct A<0> { int n; }; A<50> a;"
"constexpr int &r = a.n;"
"constexpr int A<50>::*p = &A<50>::n;"
"void f() { foo: bar: constexpr int k = __builtin_constant_p(0) ?"
" (char*)&&foo - (char*)&&bar : 0; }",
Args));
// FIXME: Once this test starts breaking we can test APValue::needsCleanup
// for ComplexInt.
ASSERT_FALSE(runToolOnCodeWithArgs(
Factory->create(),
"constexpr _Complex __uint128_t c = 0xffffffffffffffff;",
Args));
}