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