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f20569fa XL |
1 | #![warn(clippy::default_numeric_fallback)] |
2 | #![allow(unused)] | |
3 | #![allow(clippy::never_loop)] | |
4 | #![allow(clippy::no_effect)] | |
5 | #![allow(clippy::unnecessary_operation)] | |
6 | ||
7 | mod basic_expr { | |
8 | fn test() { | |
9 | // Should lint unsuffixed literals typed `i32`. | |
10 | let x = 22; | |
11 | let x = [1, 2, 3]; | |
12 | let x = if true { (1, 2) } else { (3, 4) }; | |
13 | let x = match 1 { | |
14 | 1 => 1, | |
15 | _ => 2, | |
16 | }; | |
17 | ||
18 | // Should lint unsuffixed literals typed `f64`. | |
19 | let x = 0.12; | |
20 | ||
21 | // Should NOT lint suffixed literals. | |
22 | let x = 22_i32; | |
23 | let x = 0.12_f64; | |
24 | ||
25 | // Should NOT lint literals in init expr if `Local` has a type annotation. | |
26 | let x: f64 = 0.1; | |
27 | let x: [i32; 3] = [1, 2, 3]; | |
28 | let x: (i32, i32) = if true { (1, 2) } else { (3, 4) }; | |
29 | let x: _ = 1; | |
30 | } | |
31 | } | |
32 | ||
33 | mod nested_local { | |
34 | fn test() { | |
35 | let x: _ = { | |
36 | // Should lint this because this literal is not bound to any types. | |
37 | let y = 1; | |
38 | ||
39 | // Should NOT lint this because this literal is bound to `_` of outer `Local`. | |
40 | 1 | |
41 | }; | |
42 | ||
43 | let x: _ = if true { | |
44 | // Should lint this because this literal is not bound to any types. | |
45 | let y = 1; | |
46 | ||
47 | // Should NOT lint this because this literal is bound to `_` of outer `Local`. | |
48 | 1 | |
49 | } else { | |
50 | // Should lint this because this literal is not bound to any types. | |
51 | let y = 1; | |
52 | ||
53 | // Should NOT lint this because this literal is bound to `_` of outer `Local`. | |
54 | 2 | |
55 | }; | |
56 | } | |
57 | } | |
58 | ||
59 | mod function_def { | |
60 | fn ret_i32() -> i32 { | |
61 | // Even though the output type is specified, | |
62 | // this unsuffixed literal is linted to reduce heuristics and keep codebase simple. | |
63 | 1 | |
64 | } | |
65 | ||
66 | fn test() { | |
67 | // Should lint this because return type is inferred to `i32` and NOT bound to a concrete | |
68 | // type. | |
69 | let f = || -> _ { 1 }; | |
70 | ||
71 | // Even though the output type is specified, | |
72 | // this unsuffixed literal is linted to reduce heuristics and keep codebase simple. | |
73 | let f = || -> i32 { 1 }; | |
74 | } | |
75 | } | |
76 | ||
77 | mod function_calls { | |
78 | fn concrete_arg(x: i32) {} | |
79 | ||
80 | fn generic_arg<T>(t: T) {} | |
81 | ||
82 | fn test() { | |
83 | // Should NOT lint this because the argument type is bound to a concrete type. | |
84 | concrete_arg(1); | |
85 | ||
86 | // Should lint this because the argument type is inferred to `i32` and NOT bound to a concrete type. | |
87 | generic_arg(1); | |
88 | ||
89 | // Should lint this because the argument type is inferred to `i32` and NOT bound to a concrete type. | |
90 | let x: _ = generic_arg(1); | |
91 | } | |
92 | } | |
93 | ||
94 | mod struct_ctor { | |
95 | struct ConcreteStruct { | |
96 | x: i32, | |
97 | } | |
98 | ||
99 | struct GenericStruct<T> { | |
100 | x: T, | |
101 | } | |
102 | ||
103 | fn test() { | |
104 | // Should NOT lint this because the field type is bound to a concrete type. | |
105 | ConcreteStruct { x: 1 }; | |
106 | ||
107 | // Should lint this because the field type is inferred to `i32` and NOT bound to a concrete type. | |
108 | GenericStruct { x: 1 }; | |
109 | ||
110 | // Should lint this because the field type is inferred to `i32` and NOT bound to a concrete type. | |
111 | let _ = GenericStruct { x: 1 }; | |
112 | } | |
113 | } | |
114 | ||
115 | mod method_calls { | |
116 | struct StructForMethodCallTest {} | |
117 | ||
118 | impl StructForMethodCallTest { | |
119 | fn concrete_arg(&self, x: i32) {} | |
120 | ||
121 | fn generic_arg<T>(&self, t: T) {} | |
122 | } | |
123 | ||
124 | fn test() { | |
125 | let s = StructForMethodCallTest {}; | |
126 | ||
127 | // Should NOT lint this because the argument type is bound to a concrete type. | |
128 | s.concrete_arg(1); | |
129 | ||
130 | // Should lint this because the argument type is bound to a concrete type. | |
131 | s.generic_arg(1); | |
132 | } | |
133 | } | |
134 | ||
135 | fn main() {} |