1 // run-rustfix
2
3 #![allow(unused_imports, dead_code)]
4 #![deny(clippy::default_trait_access)]
5
6 use std::default;
7 use std::default::Default as D2;
8 use std::string;
9
main()10 fn main() {
11 let s1: String = Default::default();
12
13 let s2 = String::default();
14
15 let s3: String = D2::default();
16
17 let s4: String = std::default::Default::default();
18
19 let s5 = string::String::default();
20
21 let s6: String = default::Default::default();
22
23 let s7 = std::string::String::default();
24
25 let s8: String = DefaultFactory::make_t_badly();
26
27 let s9: String = DefaultFactory::make_t_nicely();
28
29 let s10 = DerivedDefault::default();
30
31 let s11: GenericDerivedDefault<String> = Default::default();
32
33 let s12 = GenericDerivedDefault::<String>::default();
34
35 let s13 = TupleDerivedDefault::default();
36
37 let s14: TupleDerivedDefault = Default::default();
38
39 let s15: ArrayDerivedDefault = Default::default();
40
41 let s16 = ArrayDerivedDefault::default();
42
43 let s17: TupleStructDerivedDefault = Default::default();
44
45 let s18 = TupleStructDerivedDefault::default();
46
47 let s19 = <DerivedDefault as Default>::default();
48
49 println!(
50 "[{}] [{}] [{}] [{}] [{}] [{}] [{}] [{}] [{}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}], [{:?}]",
51 s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15, s16, s17, s18, s19,
52 );
53 }
54
55 struct DefaultFactory;
56
57 impl DefaultFactory {
make_t_badly<T: Default>() -> T58 pub fn make_t_badly<T: Default>() -> T {
59 Default::default()
60 }
61
make_t_nicely<T: Default>() -> T62 pub fn make_t_nicely<T: Default>() -> T {
63 T::default()
64 }
65 }
66
67 #[derive(Debug, Default)]
68 struct DerivedDefault {
69 pub s: String,
70 }
71
72 #[derive(Debug, Default)]
73 struct GenericDerivedDefault<T: Default + std::fmt::Debug> {
74 pub s: T,
75 }
76
77 #[derive(Debug, Default)]
78 struct TupleDerivedDefault {
79 pub s: (String, String),
80 }
81
82 #[derive(Debug, Default)]
83 struct ArrayDerivedDefault {
84 pub s: [String; 10],
85 }
86
87 #[derive(Debug, Default)]
88 struct TupleStructDerivedDefault(String);
89