summaryrefslogtreecommitdiffstats
path: root/src/tools/clippy/tests/ui/auxiliary/macro_rules.rs
blob: a13af5652038939fa32c398796dd377eef7babe4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
#![allow(dead_code)]

//! Used to test that certain lints don't trigger in imported external macros

#[macro_export]
macro_rules! foofoo {
    () => {
        loop {}
    };
}

#[macro_export]
macro_rules! must_use_unit {
    () => {
        #[must_use]
        fn foo() {}
    };
}

#[macro_export]
macro_rules! try_err {
    () => {
        pub fn try_err_fn() -> Result<i32, i32> {
            let err: i32 = 1;
            // To avoid warnings during rustfix
            if true { Err(err)? } else { Ok(2) }
        }
    };
}

#[macro_export]
macro_rules! string_add {
    () => {
        let y = "".to_owned();
        let z = y + "...";
    };
}

#[macro_export]
macro_rules! take_external {
    ($s:expr) => {
        std::mem::replace($s, Default::default())
    };
}

#[macro_export]
macro_rules! option_env_unwrap_external {
    ($env: expr) => {
        option_env!($env).unwrap()
    };
    ($env: expr, $message: expr) => {
        option_env!($env).expect($message)
    };
}

#[macro_export]
macro_rules! ref_arg_binding {
    () => {
        let ref _y = 42;
    };
}

#[macro_export]
macro_rules! ref_arg_function {
    () => {
        fn fun_example(ref _x: usize) {}
    };
}

#[macro_export]
macro_rules! as_conv_with_arg {
    (0u32 as u64) => {
        ()
    };
}

#[macro_export]
macro_rules! as_conv {
    () => {
        0u32 as u64
    };
}

#[macro_export]
macro_rules! large_enum_variant {
    () => {
        enum LargeEnumInMacro {
            A(i32),
            B([i32; 8000]),
        }
    };
}

#[macro_export]
macro_rules! field_reassign_with_default {
    () => {
        #[derive(Default)]
        struct A {
            pub i: i32,
            pub j: i64,
        }
        fn lint() {
            let mut a: A = Default::default();
            a.i = 42;
            a;
        }
    };
}

#[macro_export]
macro_rules! default_numeric_fallback {
    () => {
        let x = 22;
    };
}

#[macro_export]
macro_rules! mut_mut {
    () => {
        let mut_mut_ty: &mut &mut u32 = &mut &mut 1u32;
    };
}

#[macro_export]
macro_rules! ptr_as_ptr_cast {
    ($ptr: ident) => {
        $ptr as *const i32
    };
}

#[macro_export]
macro_rules! manual_rem_euclid {
    () => {
        let value: i32 = 5;
        let _: i32 = ((value % 4) + 4) % 4;
    };
}

#[macro_export]
macro_rules! equatable_if_let {
    ($a:ident) => {{ if let 2 = $a {} }};
}

#[macro_export]
macro_rules! almost_complete_range {
    () => {
        let _ = 'a'..'z';
        let _ = 'A'..'Z';
        let _ = '0'..'9';
    };
}

#[macro_export]
macro_rules! unsafe_macro {
    () => {
        unsafe {
            *core::ptr::null::<()>();
            *core::ptr::null::<()>();
        }
    };
}

#[macro_export]
macro_rules! needless_lifetime {
    () => {
        fn needless_lifetime<'a>(x: &'a u8) -> &'a u8 {
            unimplemented!()
        }
    };
}