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57ce16ca27
stabilize extract_if Tracking issue: #43244 Closes: #43244 FCP completed: https://github.com/rust-lang/rust/issues/43244#issuecomment-2523595704
107 lines
2.7 KiB
Rust
107 lines
2.7 KiB
Rust
#![feature(allocator_api)]
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#![feature(alloc_layout_extra)]
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#![feature(iter_array_chunks)]
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#![feature(assert_matches)]
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#![feature(btree_extract_if)]
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#![feature(char_max_len)]
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#![feature(cow_is_borrowed)]
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#![feature(core_intrinsics)]
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#![feature(downcast_unchecked)]
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#![feature(exact_size_is_empty)]
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#![feature(hashmap_internals)]
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#![feature(linked_list_cursors)]
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#![feature(map_try_insert)]
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#![feature(pattern)]
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#![feature(trusted_len)]
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#![feature(try_reserve_kind)]
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#![feature(try_with_capacity)]
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#![feature(unboxed_closures)]
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#![feature(binary_heap_into_iter_sorted)]
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#![feature(binary_heap_drain_sorted)]
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#![feature(slice_ptr_get)]
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#![feature(inplace_iteration)]
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#![feature(iter_advance_by)]
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#![feature(iter_next_chunk)]
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#![feature(round_char_boundary)]
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#![feature(slice_partition_dedup)]
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#![feature(string_from_utf8_lossy_owned)]
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#![feature(string_remove_matches)]
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#![feature(const_btree_len)]
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#![feature(const_trait_impl)]
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#![feature(panic_update_hook)]
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#![feature(pointer_is_aligned_to)]
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#![feature(test)]
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#![feature(thin_box)]
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#![feature(drain_keep_rest)]
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#![feature(local_waker)]
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#![feature(str_as_str)]
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#![feature(strict_provenance_lints)]
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#![feature(vec_deque_pop_if)]
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#![feature(unique_rc_arc)]
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#![feature(macro_metavar_expr_concat)]
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#![allow(internal_features)]
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#![deny(fuzzy_provenance_casts)]
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#![deny(unsafe_op_in_unsafe_fn)]
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extern crate test;
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use std::hash::{DefaultHasher, Hash, Hasher};
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mod alloc;
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mod arc;
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mod autotraits;
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mod borrow;
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mod boxed;
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mod btree_set_hash;
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mod c_str;
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mod c_str2;
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mod collections;
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mod const_fns;
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mod cow_str;
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mod fmt;
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mod heap;
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mod linked_list;
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mod misc_tests;
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mod rc;
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mod slice;
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mod sort;
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mod str;
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mod string;
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mod sync;
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mod task;
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mod testing;
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mod thin_box;
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mod vec;
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mod vec_deque;
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fn hash<T: Hash>(t: &T) -> u64 {
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let mut s = DefaultHasher::new();
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t.hash(&mut s);
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s.finish()
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}
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/// Copied from `std::test_helpers::test_rng`, since these tests rely on the
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/// seed not being the same for every RNG invocation too.
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fn test_rng() -> rand_xorshift::XorShiftRng {
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use std::hash::{BuildHasher, Hash, Hasher};
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let mut hasher = std::hash::RandomState::new().build_hasher();
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std::panic::Location::caller().hash(&mut hasher);
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let hc64 = hasher.finish();
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let seed_vec = hc64.to_le_bytes().into_iter().chain(0u8..8).collect::<Vec<u8>>();
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let seed: [u8; 16] = seed_vec.as_slice().try_into().unwrap();
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rand::SeedableRng::from_seed(seed)
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}
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#[test]
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fn test_boxed_hasher() {
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let ordinary_hash = hash(&5u32);
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let mut hasher_1 = Box::new(DefaultHasher::new());
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5u32.hash(&mut hasher_1);
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assert_eq!(ordinary_hash, hasher_1.finish());
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let mut hasher_2 = Box::new(DefaultHasher::new()) as Box<dyn Hasher>;
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5u32.hash(&mut hasher_2);
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assert_eq!(ordinary_hash, hasher_2.finish());
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}
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