Auto merge of #3635 - matthiaskrgr:revert_random_state_3603, r=xfix
Revert the random_state lint. Remove the random_state lint until it or rustc has been fixed to no longer crash with debug assertions (see #3628) We can't update clippy in the rustc repo because of this which is blocking nightlies because toolstate is already broken. fixes #3628
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c63b6349b4
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@ -814,7 +814,6 @@ All notable changes to this project will be documented in this file.
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[`ptr_offset_with_cast`]: https://rust-lang.github.io/rust-clippy/master/index.html#ptr_offset_with_cast
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[`pub_enum_variant_names`]: https://rust-lang.github.io/rust-clippy/master/index.html#pub_enum_variant_names
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[`question_mark`]: https://rust-lang.github.io/rust-clippy/master/index.html#question_mark
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[`random_state`]: https://rust-lang.github.io/rust-clippy/master/index.html#random_state
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[`range_minus_one`]: https://rust-lang.github.io/rust-clippy/master/index.html#range_minus_one
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[`range_plus_one`]: https://rust-lang.github.io/rust-clippy/master/index.html#range_plus_one
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[`range_step_by_zero`]: https://rust-lang.github.io/rust-clippy/master/index.html#range_step_by_zero
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@ -7,7 +7,7 @@
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A collection of lints to catch common mistakes and improve your [Rust](https://github.com/rust-lang/rust) code.
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[There are 291 lints included in this crate!](https://rust-lang.github.io/rust-clippy/master/index.html)
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[There are 290 lints included in this crate!](https://rust-lang.github.io/rust-clippy/master/index.html)
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We have a bunch of lint categories to allow you to choose how much Clippy is supposed to ~~annoy~~ help you:
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@ -180,7 +180,6 @@ pub mod precedence;
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pub mod ptr;
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pub mod ptr_offset_with_cast;
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pub mod question_mark;
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pub mod random_state;
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pub mod ranges;
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pub mod redundant_clone;
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pub mod redundant_field_names;
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@ -487,7 +486,6 @@ pub fn register_plugins(reg: &mut rustc_plugin::Registry<'_>, conf: &Conf) {
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reg.register_late_lint_pass(box ptr_offset_with_cast::Pass);
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reg.register_late_lint_pass(box redundant_clone::RedundantClone);
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reg.register_late_lint_pass(box slow_vector_initialization::Pass);
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reg.register_late_lint_pass(box random_state::Pass);
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reg.register_lint_group("clippy::restriction", Some("clippy_restriction"), vec![
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arithmetic::FLOAT_ARITHMETIC,
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@ -1027,7 +1025,6 @@ pub fn register_plugins(reg: &mut rustc_plugin::Registry<'_>, conf: &Conf) {
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fallible_impl_from::FALLIBLE_IMPL_FROM,
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mutex_atomic::MUTEX_INTEGER,
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needless_borrow::NEEDLESS_BORROW,
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random_state::RANDOM_STATE,
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redundant_clone::REDUNDANT_CLONE,
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unwrap::PANICKING_UNWRAP,
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unwrap::UNNECESSARY_UNWRAP,
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@ -1,50 +0,0 @@
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use crate::utils::{match_type, paths, span_lint};
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use rustc::hir::Ty;
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use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
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use rustc::ty::subst::UnpackedKind;
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use rustc::ty::TyKind;
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use rustc::{declare_tool_lint, lint_array};
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/// **What it does:** Checks for usage of `RandomState`
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///
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/// **Why is this bad?** Some applications don't need collision prevention
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/// which lowers the performance.
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///
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/// **Known problems:** None.
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///
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/// **Example:**
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/// ```rust
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/// fn x() {
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/// let mut map = std::collections::HashMap::new();
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/// map.insert(3, 4);
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/// }
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/// ```
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declare_clippy_lint! {
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pub RANDOM_STATE,
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nursery,
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"use of RandomState"
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}
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pub struct Pass;
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impl LintPass for Pass {
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fn get_lints(&self) -> LintArray {
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lint_array!(RANDOM_STATE)
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}
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}
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impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
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fn check_ty(&mut self, cx: &LateContext<'a, 'tcx>, ty: &Ty) {
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if let Some(tys) = cx.tables.node_id_to_type_opt(ty.hir_id) {
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if let TyKind::Adt(_, substs) = tys.sty {
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for subst in substs {
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if let UnpackedKind::Type(build_hasher) = subst.unpack() {
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if match_type(cx, build_hasher, &paths::RANDOM_STATE) {
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span_lint(cx, RANDOM_STATE, ty.span, "usage of RandomState");
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}
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}
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}
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}
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}
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}
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}
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@ -73,7 +73,6 @@ pub const PATH_BUF: [&str; 3] = ["std", "path", "PathBuf"];
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pub const PATH_TO_PATH_BUF: [&str; 4] = ["std", "path", "Path", "to_path_buf"];
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pub const PTR_NULL: [&str; 2] = ["ptr", "null"];
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pub const PTR_NULL_MUT: [&str; 2] = ["ptr", "null_mut"];
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pub const RANDOM_STATE: [&str; 5] = ["std", "collections", "hash", "map", "RandomState"];
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pub const RANGE: [&str; 3] = ["core", "ops", "Range"];
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pub const RANGE_ARGUMENT_TRAIT: [&str; 3] = ["core", "ops", "RangeBounds"];
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pub const RANGE_FROM: [&str; 3] = ["core", "ops", "RangeFrom"];
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@ -8,7 +8,6 @@
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// except according to those terms.
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#![allow(clippy::useless_attribute)] //issue #2910
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#![allow(clippy::random_state)] // issue #3628
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#[macro_use]
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extern crate serde_derive;
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@ -1,19 +0,0 @@
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#![warn(clippy::random_state)]
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use std::collections::hash_map::RandomState;
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use std::collections::hash_map::{DefaultHasher, HashMap};
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use std::hash::BuildHasherDefault;
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fn main() {
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// Should warn
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let mut map = HashMap::new();
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map.insert(3, 4);
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let mut map = HashMap::with_hasher(RandomState::new());
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map.insert(true, false);
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let _map: HashMap<_, _> = vec![(2, 3)].into_iter().collect();
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let _vec: Vec<HashMap<i32, i32>>;
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// Shouldn't warn
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let _map: HashMap<i32, i32, BuildHasherDefault<DefaultHasher>> = HashMap::default();
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let mut map = HashMap::with_hasher(BuildHasherDefault::<DefaultHasher>::default());
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map.insert("a", "b");
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}
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@ -1,28 +0,0 @@
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error: usage of RandomState
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--> $DIR/random_state.rs:9:19
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LL | let mut map = HashMap::new();
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| ^^^^^^^^^^^^
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= note: `-D clippy::random-state` implied by `-D warnings`
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error: usage of RandomState
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--> $DIR/random_state.rs:11:19
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LL | let mut map = HashMap::with_hasher(RandomState::new());
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| ^^^^^^^^^^^^^^^^^^^^
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error: usage of RandomState
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--> $DIR/random_state.rs:13:15
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LL | let _map: HashMap<_, _> = vec![(2, 3)].into_iter().collect();
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| ^^^^^^^^^^^^^
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error: usage of RandomState
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--> $DIR/random_state.rs:14:19
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LL | let _vec: Vec<HashMap<i32, i32>>;
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| ^^^^^^^^^^^^^^^^^
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error: aborting due to 4 previous errors
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