1// RUN: %check_clang_tidy %s abseil-duration-subtraction %t -- -- -I %S/Inputs
2
3#include "absl/time/time.h"
4
5void f() {
6 double x;
7 absl::Duration d, d1, d2;
8
9 x = absl::ToDoubleSeconds(d) - 1.0;
10 // CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
11 // CHECK-FIXES: absl::ToDoubleSeconds(d - absl::Seconds(1))
12 x = absl::ToDoubleSeconds(d) - absl::ToDoubleSeconds(d1);
13 // CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
14 // CHECK-FIXES: absl::ToDoubleSeconds(d - d1);
15 x = absl::ToDoubleSeconds(d) - 6.5 - 8.0;
16 // CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
17 // CHECK-FIXES: absl::ToDoubleSeconds(d - absl::Seconds(6.5)) - 8.0;
18 x = absl::ToDoubleHours(d) - 1.0;
19 // CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
20 // CHECK-FIXES: absl::ToDoubleHours(d - absl::Hours(1))
21 x = absl::ToDoubleMinutes(d) - 1;
22 // CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
23 // CHECK-FIXES: absl::ToDoubleMinutes(d - absl::Minutes(1))
24 x = absl::ToDoubleMilliseconds(d) - 9;
25 // CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
26 // CHECK-FIXES: absl::ToDoubleMilliseconds(d - absl::Milliseconds(9))
27 x = absl::ToDoubleMicroseconds(d) - 9;
28 // CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
29 // CHECK-FIXES: absl::ToDoubleMicroseconds(d - absl::Microseconds(9))
30 x = absl::ToDoubleNanoseconds(d) - 42;
31 // CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
32 // CHECK-FIXES: absl::ToDoubleNanoseconds(d - absl::Nanoseconds(42))
33
34 // We can rewrite the argument of the duration conversion
35#define THIRTY absl::Seconds(30)
36 x = absl::ToDoubleSeconds(THIRTY) - 1.0;
37 // CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
38 // CHECK-FIXES: absl::ToDoubleSeconds(THIRTY - absl::Seconds(1))
39#undef THIRTY
40
41 // Some other contexts
42 if (absl::ToDoubleSeconds(d) - 1.0 > 10) {}
43 // CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
44 // CHECK-FIXES: if (absl::ToDoubleSeconds(d - absl::Seconds(1)) > 10) {}
45
46 // A nested occurrence
47 x = absl::ToDoubleSeconds(d) - absl::ToDoubleSeconds(absl::Seconds(5));
48 // CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
49 // CHECK-FIXES: absl::ToDoubleSeconds(d - absl::Seconds(5))
50 x = absl::ToDoubleSeconds(d) - absl::ToDoubleSeconds(absl::Seconds(absl::ToDoubleSeconds(d1)));
51 // CHECK-MESSAGES: [[@LINE-1]]:7: warning: perform subtraction in the duration domain [abseil-duration-subtraction]
52 // CHECK-FIXES: absl::ToDoubleSeconds(d - absl::Seconds(absl::ToDoubleSeconds(d1)))
53
54 // These should not match
55 x = 5 - 6;
56 x = 4 - absl::ToDoubleSeconds(d) - 6.5 - 8.0;
57 x = absl::ToDoubleSeconds(d) + 1.0;
58 x = absl::ToDoubleSeconds(d) * 1.0;
59 x = absl::ToDoubleSeconds(d) / 1.0;
60
61#define MINUS_FIVE(z) absl::ToDoubleSeconds(z) - 5
62 x = MINUS_FIVE(d);
63#undef MINUS_FIVE
64}
65

source code of clang-tools-extra/test/clang-tidy/checkers/abseil/duration-subtraction.cpp