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comparison clang/test/PCH/decl-attrs.cpp @ 207:2e18cbf3894f

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LLVM12
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 08 Jun 2021 06:07:14 +0900
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173:0572611fdcc8 207:2e18cbf3894f
1 // RUN: %clang_cc1 -std=c++20 -emit-pch -o %t.a %s
2 // RUN: %clang_cc1 -std=c++20 -include-pch %t.a %s -verify
3
4 #ifndef HEADER
5 #define HEADER
6
7 namespace preferred_name {
8 template<typename T> struct X;
9 using Y = X<int>;
10 using Z = X<float>;
11 template<typename T> struct [[using clang: preferred_name(Y), preferred_name(Z)]] X {};
12 Y y;
13 }
14
15 namespace aligned {
16 // PR48434: ensure attributes don't introduce deserialization cycles.
17 template<typename T> struct X1;
18 using Y1 = X1<int>;
19 template<typename T> struct alignas(Y1*) X1 {};
20 Y1 y1;
21
22 template<typename T> struct X2;
23 using Y2 = X2<int>;
24 template<typename T> struct alignas(Y2*) X2 {};
25 }
26
27 #else
28
29 namespace preferred_name {
30 Z z;
31
32 template<typename T> T forget(T t) { return t; }
33 void f() {
34 forget(y).foo(); // expected-error {{no member named 'foo' in 'preferred_name::Y'}}
35 forget(z).foo(); // expected-error {{no member named 'foo' in 'preferred_name::Z'}}
36 }
37 }
38
39 namespace aligned {
40 extern Y1 y1;
41 extern Y2 y2;
42 static_assert(alignof(Y1) == alignof(Y1*), "");
43 static_assert(alignof(Y2) == alignof(Y2*), "");
44 }
45
46 #endif