src/tools/clippy/tests/ui/default_trait_access.fixed

   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
  10 fn main() {
  11     let s1: String = std::string::String::default();
  12
  13     let s2 = String::default();
  14
  15     let s3: String = std::string::String::default();
  16
  17     let s4: String = std::string::String::default();
  18
  19     let s5 = string::String::default();
  20
  21     let s6: String = std::string::String::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> = GenericDerivedDefault::default();
  32
  33     let s12 = GenericDerivedDefault::<String>::default();
  34
  35     let s13 = TupleDerivedDefault::default();
  36
  37     let s14: TupleDerivedDefault = TupleDerivedDefault::default();
  38
  39     let s15: ArrayDerivedDefault = ArrayDerivedDefault::default();
  40
  41     let s16 = ArrayDerivedDefault::default();
  42
  43     let s17: TupleStructDerivedDefault = TupleStructDerivedDefault::default();
  44
  45     let s18 = TupleStructDerivedDefault::default();
  46
  47     let s19 = <DerivedDefault as Default>::default();
  48
  49     let s20 = UpdateSyntax {
  50         s: "foo",
  51         ..Default::default()
  52     };
  53
  54     println!(
  55         "[{}] [{}] [{}] [{}] [{}] [{}] [{}] [{}] [{}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}]",
  56         s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15, s16, s17, s18, s19, s20,
  57     );
  58 }
  59
  60 struct DefaultFactory;
  61
  62 impl DefaultFactory {
  63     pub fn make_t_badly<T: Default>() -> T {
  64         Default::default()
  65     }
  66
  67     pub fn make_t_nicely<T: Default>() -> T {
  68         T::default()
  69     }
  70 }
  71
  72 #[derive(Debug, Default)]
  73 struct DerivedDefault {
  74     pub s: String,
  75 }
  76
  77 #[derive(Debug, Default)]
  78 struct GenericDerivedDefault<T: Default + std::fmt::Debug> {
  79     pub s: T,
  80 }
  81
  82 #[derive(Debug, Default)]
  83 struct TupleDerivedDefault {
  84     pub s: (String, String),
  85 }
  86
  87 #[derive(Debug, Default)]
  88 struct ArrayDerivedDefault {
  89     pub s: [String; 10],
  90 }
  91
  92 #[derive(Debug, Default)]
  93 struct TupleStructDerivedDefault(String);
  94
  95 #[derive(Debug, Default)]
  96 struct UpdateSyntax {
  97     pub s: &'static str,
  98     pub u: u64,
  99 }