mirror of
https://github.com/rust-lang/rust-clippy
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103 lines
2.7 KiB
Rust
103 lines
2.7 KiB
Rust
//@aux-build:proc_macros.rs:proc-macro
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//@no-rustfix
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#![deny(clippy::implicit_hasher)]
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#![allow(unused)]
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#[macro_use]
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extern crate proc_macros;
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use proc_macros::external;
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use std::cmp::Eq;
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use std::collections::{HashMap, HashSet};
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use std::hash::{BuildHasher, Hash};
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pub trait Foo<T>: Sized {
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fn make() -> (Self, Self);
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}
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impl<K: Hash + Eq, V> Foo<i8> for HashMap<K, V> {
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fn make() -> (Self, Self) {
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// OK, don't suggest to modify these
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let _: HashMap<i32, i32> = HashMap::new();
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let _: HashSet<i32> = HashSet::new();
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(HashMap::new(), HashMap::with_capacity(10))
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}
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}
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impl<K: Hash + Eq, V> Foo<i8> for (HashMap<K, V>,) {
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fn make() -> (Self, Self) {
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((HashMap::new(),), (HashMap::with_capacity(10),))
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}
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}
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impl Foo<i16> for HashMap<String, String> {
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fn make() -> (Self, Self) {
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(HashMap::new(), HashMap::with_capacity(10))
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}
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}
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impl<K: Hash + Eq, V, S: BuildHasher + Default> Foo<i32> for HashMap<K, V, S> {
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fn make() -> (Self, Self) {
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(HashMap::default(), HashMap::with_capacity_and_hasher(10, S::default()))
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}
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}
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impl<S: BuildHasher + Default> Foo<i64> for HashMap<String, String, S> {
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fn make() -> (Self, Self) {
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(HashMap::default(), HashMap::with_capacity_and_hasher(10, S::default()))
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}
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}
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impl<T: Hash + Eq> Foo<i8> for HashSet<T> {
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fn make() -> (Self, Self) {
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(HashSet::new(), HashSet::with_capacity(10))
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}
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}
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impl Foo<i16> for HashSet<String> {
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fn make() -> (Self, Self) {
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(HashSet::new(), HashSet::with_capacity(10))
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}
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}
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impl<T: Hash + Eq, S: BuildHasher + Default> Foo<i32> for HashSet<T, S> {
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fn make() -> (Self, Self) {
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(HashSet::default(), HashSet::with_capacity_and_hasher(10, S::default()))
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}
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}
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impl<S: BuildHasher + Default> Foo<i64> for HashSet<String, S> {
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fn make() -> (Self, Self) {
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(HashSet::default(), HashSet::with_capacity_and_hasher(10, S::default()))
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}
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}
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pub fn foo(_map: &mut HashMap<i32, i32>, _set: &mut HashSet<i32>) {}
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#[proc_macros::inline_macros]
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pub mod gen {
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use super::*;
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inline! {
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impl<K: Hash + Eq, V> Foo<u8> for HashMap<K, V> {
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fn make() -> (Self, Self) {
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(HashMap::new(), HashMap::with_capacity(10))
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}
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}
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pub fn bar(_map: &mut HashMap<i32, i32>, _set: &mut HashSet<i32>) {}
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}
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}
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// When the macro is in a different file, the suggestion spans can't be combined properly
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// and should not cause an ICE
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// See #2707
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#[macro_use]
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#[path = "auxiliary/test_macro.rs"]
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pub mod test_macro;
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__implicit_hasher_test_macro!(impl<K, V> for HashMap<K, V> where V: test_macro::A);
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// #4260
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external! {
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pub fn f(input: &HashMap<u32, u32>) {}
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}
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// #7712
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pub async fn election_vote(_data: HashMap<i32, i32>) {}
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fn main() {}
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