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comparison clang-tools-extra/test/clang-reorder-fields/FieldDependencyWarning.cpp @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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147:c2174574ed3a 150:1d019706d866
1 // RUN: clang-reorder-fields -record-name bar::Foo -fields-order y,z,c,x %s -- 2>&1 | FileCheck --check-prefix=CHECK-MESSAGES %s
2 // FIXME: clang-reorder-fields should provide -verify mode to make writing these checks
3 // easier and more accurate, for now we follow clang-tidy's approach.
4
5 namespace bar {
6
7 struct Dummy {
8 Dummy(int x, char c) : x(x), c(c) {}
9 int x;
10 char c;
11 };
12
13 class Foo {
14 public:
15 Foo(int x, double y, char cin);
16 Foo(int nx);
17 Foo();
18 int x;
19 double y;
20 char c;
21 Dummy z;
22 };
23
24 static char bar(char c) {
25 return c + 1;
26 }
27
28 Foo::Foo() : x(), y(), c(), z(0, 'a') {}
29
30 Foo::Foo(int x, double y, char cin) :
31 x(x),
32 y(y),
33 c(cin),
34 z(this->x, bar(c))
35 // CHECK-MESSAGES: :[[@LINE-1]]:3: warning: reordering field x after z makes x uninitialized when used in init expression
36 // CHECK-MESSAGES: :[[@LINE-2]]:3: warning: reordering field c after z makes c uninitialized when used in init expression
37 {}
38
39 Foo::Foo(int nx) :
40 x(nx),
41 y(x),
42 c(0),
43 z(bar(bar(x)), c)
44 // CHECK-MESSAGES: :[[@LINE-3]]:3: warning: reordering field x after y makes x uninitialized when used in init expression
45 // CHECK-MESSAGES: :[[@LINE-2]]:3: warning: reordering field x after z makes x uninitialized when used in init expression
46 // CHECK-MESSAGES: :[[@LINE-3]]:3: warning: reordering field c after z makes c uninitialized when used in init expression
47 {}
48
49 } // namespace bar
50
51 int main() {
52 bar::Foo F(5, 12.8, 'c');
53 return 0;
54 }