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rust-clippy/tests/ui/default_trait_access.fixed

103 lines
2.3 KiB
Rust

//@aux-build: proc_macros.rs
#![deny(clippy::default_trait_access)]
#![allow(dead_code, unused_imports)]
#![allow(clippy::uninlined_format_args)]
extern crate proc_macros;
use proc_macros::with_span;
use std::default::Default as D2;
use std::{default, string};
fn main() {
let s1: String = String::default();
let s2 = String::default();
let s3: String = String::default();
let s4: String = String::default();
let s5 = string::String::default();
let s6: String = String::default();
let s7 = std::string::String::default();
let s8: String = DefaultFactory::make_t_badly();
let s9: String = DefaultFactory::make_t_nicely();
let s10 = DerivedDefault::default();
let s11: GenericDerivedDefault<String> = GenericDerivedDefault::default();
let s12 = GenericDerivedDefault::<String>::default();
let s13 = TupleDerivedDefault::default();
let s14: TupleDerivedDefault = TupleDerivedDefault::default();
let s15: ArrayDerivedDefault = ArrayDerivedDefault::default();
let s16 = ArrayDerivedDefault::default();
let s17: TupleStructDerivedDefault = TupleStructDerivedDefault::default();
let s18 = TupleStructDerivedDefault::default();
let s19 = <DerivedDefault as Default>::default();
let s20 = UpdateSyntax {
s: "foo",
..Default::default()
};
let _s21: String = with_span!(s Default::default());
println!(
"[{}] [{}] [{}] [{}] [{}] [{}] [{}] [{}] [{}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}] [{:?}]",
s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15, s16, s17, s18, s19, s20,
);
}
struct DefaultFactory;
impl DefaultFactory {
pub fn make_t_badly<T: Default>() -> T {
Default::default()
}
pub fn make_t_nicely<T: Default>() -> T {
T::default()
}
}
#[derive(Debug, Default)]
struct DerivedDefault {
pub s: String,
}
#[derive(Debug, Default)]
struct GenericDerivedDefault<T: Default + std::fmt::Debug> {
pub s: T,
}
#[derive(Debug, Default)]
struct TupleDerivedDefault {
pub s: (String, String),
}
#[derive(Debug, Default)]
struct ArrayDerivedDefault {
pub s: [String; 10],
}
#[derive(Debug, Default)]
struct TupleStructDerivedDefault(String);
#[derive(Debug, Default)]
struct UpdateSyntax {
pub s: &'static str,
pub u: u64,
}