Rollup of 6 pull requests

Cargo.lock

@@ -332,7 +332,7 @@ dependencies = [
  "cargo-test-macro",
  "cargo-test-support",
  "cargo-util",
- "clap 3.1.1",
+ "clap 3.2.5",
  "crates-io",
  "crossbeam-utils",
  "curl",
@@ -470,7 +470,7 @@ dependencies = [
 
 [[package]]
 name = "cargo-util"
-version = "0.1.3"
+version = "0.1.4"
 dependencies = [
  "anyhow",
  "core-foundation",
@@ -615,19 +615,19 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "3.1.1"
+version = "3.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d76c22c9b9b215eeb8d016ad3a90417bd13cb24cf8142756e6472445876cab7"
+checksum = "d53da17d37dba964b9b3ecb5c5a1f193a2762c700e6829201e645b9381c99dc7"
 dependencies = [
  "atty",
  "bitflags",
  "clap_derive",
+ "clap_lex",
  "indexmap",
- "lazy_static",
- "os_str_bytes",
+ "once_cell",
  "strsim 0.10.0",
  "termcolor",
- "textwrap 0.14.2",
+ "textwrap 0.15.0",
 ]
 
 [[package]]
@@ -636,14 +636,14 @@ version = "3.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "df6f3613c0a3cddfd78b41b10203eb322cb29b600cbdf808a7d3db95691b8e25"
 dependencies = [
- "clap 3.1.1",
+ "clap 3.2.5",
 ]
 
 [[package]]
 name = "clap_derive"
-version = "3.1.18"
+version = "3.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "25320346e922cffe59c0bbc5410c8d8784509efb321488971081313cb1e1a33c"
+checksum = "c11d40217d16aee8508cc8e5fde8b4ff24639758608e5374e731b53f85749fb9"
 dependencies = [
  "heck 0.4.0",
  "proc-macro-error",
@@ -652,6 +652,15 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "clap_lex"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5538cd660450ebeb4234cfecf8f2284b844ffc4c50531e66d584ad5b91293613"
+dependencies = [
+ "os_str_bytes",
+]
+
 [[package]]
 name = "clippy"
 version = "0.1.63"
@@ -684,7 +693,7 @@ name = "clippy_dev"
 version = "0.0.1"
 dependencies = [
  "aho-corasick",
- "clap 3.1.1",
+ "clap 3.2.5",
  "indoc",
  "itertools",
  "opener",
@@ -2334,7 +2343,7 @@ dependencies = [
  "ammonia",
  "anyhow",
  "chrono",
- "clap 3.1.1",
+ "clap 3.2.5",
  "clap_complete",
  "elasticlunr-rs",
  "env_logger 0.7.1",
@@ -2572,9 +2581,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.10.0"
+version = "1.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87f3e037eac156d1775da914196f0f37741a274155e34a0b7e427c35d2a2ecb9"
+checksum = "7709cef83f0c1f58f666e746a08b21e0085f7440fa6a29cc194d68aac97a4225"
 
 [[package]]
 name = "opaque-debug"
@@ -2657,9 +2666,6 @@ name = "os_str_bytes"
 version = "6.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8e22443d1643a904602595ba1cd8f7d896afe56d26712531c5ff73a15b2fbf64"
-dependencies = [
- "memchr",
-]
 
 [[package]]
 name = "output_vt100"
@@ -3515,7 +3521,7 @@ version = "1.0.0"
 dependencies = [
  "bstr",
  "byteorder",
- "clap 3.1.1",
+ "clap 3.2.5",
  "crossbeam-utils",
  "libc",
  "libz-sys",
@@ -4696,7 +4702,7 @@ dependencies = [
  "anyhow",
  "bytecount",
  "cargo_metadata",
- "clap 3.1.1",
+ "clap 3.2.5",
  "derive-new",
  "diff",
  "dirs",
@@ -5259,9 +5265,9 @@ dependencies = [
 
 [[package]]
 name = "textwrap"
-version = "0.14.2"
+version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0066c8d12af8b5acd21e00547c3797fde4e8677254a7ee429176ccebbe93dd80"
+checksum = "b1141d4d61095b28419e22cb0bbf02755f5e54e0526f97f1e3d1d160e60885fb"
 
 [[package]]
 name = "thiserror"

compiler/rustc_codegen_cranelift/src/driver/jit.rs

@@ -13,7 +13,7 @@ use rustc_span::Symbol;
 
 use cranelift_jit::{JITBuilder, JITModule};
 
-// FIXME use std::lazy::SyncOnceCell once it stabilizes
+// FIXME use std::sync::OnceLock once it stabilizes
 use once_cell::sync::OnceCell;
 
 use crate::{prelude::*, BackendConfig};

compiler/rustc_codegen_llvm/src/debuginfo/mod.rs

@@ -36,9 +36,9 @@ use rustc_target::abi::Size;
 
 use libc::c_uint;
 use smallvec::SmallVec;
+use std::cell::OnceCell;
 use std::cell::RefCell;
 use std::iter;
-use std::lazy::OnceCell;
 use tracing::debug;
 
 mod create_scope_map;

compiler/rustc_codegen_ssa/src/back/link.rs

@@ -38,11 +38,11 @@ use regex::Regex;
 use tempfile::Builder as TempFileBuilder;
 
 use std::borrow::Borrow;
+use std::cell::OnceCell;
 use std::collections::BTreeSet;
 use std::ffi::OsString;
 use std::fs::{File, OpenOptions};
 use std::io::{BufWriter, Write};
-use std::lazy::OnceCell;
 use std::ops::Deref;
 use std::path::{Path, PathBuf};
 use std::process::{ExitStatus, Output, Stdio};

compiler/rustc_data_structures/src/jobserver.rs

@@ -1,5 +1,5 @@
 pub use jobserver_crate::Client;
-use std::lazy::SyncLazy;
+use std::sync::LazyLock;
 
 // We can only call `from_env` once per process
 
@@ -18,7 +18,7 @@ use std::lazy::SyncLazy;
 // Also note that we stick this in a global because there could be
 // multiple rustc instances in this process, and the jobserver is
 // per-process.
-static GLOBAL_CLIENT: SyncLazy<Client> = SyncLazy::new(|| unsafe {
+static GLOBAL_CLIENT: LazyLock<Client> = LazyLock::new(|| unsafe {
     Client::from_env().unwrap_or_else(|| {
         let client = Client::new(32).expect("failed to create jobserver");
         // Acquire a token for the main thread which we can release later

compiler/rustc_data_structures/src/sync.rs

@@ -173,7 +173,7 @@ cfg_if! {
         pub use std::cell::RefMut as LockGuard;
         pub use std::cell::RefMut as MappedLockGuard;
 
-        pub use std::lazy::OnceCell;
+        pub use std::cell::OnceCell;
 
         use std::cell::RefCell as InnerRwLock;
         use std::cell::RefCell as InnerLock;
@@ -258,7 +258,7 @@ cfg_if! {
         pub use parking_lot::MutexGuard as LockGuard;
         pub use parking_lot::MappedMutexGuard as MappedLockGuard;
 
-        pub use std::lazy::SyncOnceCell as OnceCell;
+        pub use std::sync::OnceLock as OnceCell;
 
         pub use std::sync::atomic::{AtomicBool, AtomicUsize, AtomicU32, AtomicU64};
 

compiler/rustc_driver/src/lib.rs

@@ -47,11 +47,11 @@ use std::env;
 use std::ffi::OsString;
 use std::fs;
 use std::io::{self, Read, Write};
-use std::lazy::SyncLazy;
 use std::panic::{self, catch_unwind};
 use std::path::PathBuf;
 use std::process::{self, Command, Stdio};
 use std::str;
+use std::sync::LazyLock;
 use std::time::Instant;
 
 pub mod args;
@@ -1141,8 +1141,8 @@ pub fn catch_with_exit_code(f: impl FnOnce() -> interface::Result<()>) -> i32 {
     }
 }
 
-static DEFAULT_HOOK: SyncLazy<Box<dyn Fn(&panic::PanicInfo<'_>) + Sync + Send + 'static>> =
-    SyncLazy::new(|| {
+static DEFAULT_HOOK: LazyLock<Box<dyn Fn(&panic::PanicInfo<'_>) + Sync + Send + 'static>> =
+    LazyLock::new(|| {
         let hook = panic::take_hook();
         panic::set_hook(Box::new(|info| {
             // Invoke the default handler, which prints the actual panic message and optionally a backtrace
@@ -1237,7 +1237,7 @@ pub fn install_ice_hook() {
     if std::env::var("RUST_BACKTRACE").is_err() {
         std::env::set_var("RUST_BACKTRACE", "full");
     }
-    SyncLazy::force(&DEFAULT_HOOK);
+    LazyLock::force(&DEFAULT_HOOK);
 }
 
 /// This allows tools to enable rust logging without having to magically match rustc's

compiler/rustc_error_messages/src/lib.rs

@@ -18,9 +18,9 @@ use std::path::{Path, PathBuf};
 use tracing::{instrument, trace};
 
 #[cfg(not(parallel_compiler))]
-use std::lazy::Lazy;
+use std::cell::LazyCell as Lazy;
 #[cfg(parallel_compiler)]
-use std::lazy::SyncLazy as Lazy;
+use std::sync::LazyLock as Lazy;
 
 #[cfg(parallel_compiler)]
 use intl_memoizer::concurrent::IntlLangMemoizer;

compiler/rustc_feature/src/builtin_attrs.rs

@@ -9,7 +9,7 @@ use crate::{Features, Stability};
 use rustc_data_structures::fx::FxHashMap;
 use rustc_span::symbol::{sym, Symbol};
 
-use std::lazy::SyncLazy;
+use std::sync::LazyLock;
 
 type GateFn = fn(&Features) -> bool;
 
@@ -809,8 +809,8 @@ pub fn is_builtin_only_local(name: Symbol) -> bool {
     BUILTIN_ATTRIBUTE_MAP.get(&name).map_or(false, |attr| attr.only_local)
 }
 
-pub static BUILTIN_ATTRIBUTE_MAP: SyncLazy<FxHashMap<Symbol, &BuiltinAttribute>> =
-    SyncLazy::new(|| {
+pub static BUILTIN_ATTRIBUTE_MAP: LazyLock<FxHashMap<Symbol, &BuiltinAttribute>> =
+    LazyLock::new(|| {
         let mut map = FxHashMap::default();
         for attr in BUILTIN_ATTRIBUTES.iter() {
             if map.insert(attr.name, attr).is_some() {

compiler/rustc_hir/src/lang_items.rs

@@ -17,7 +17,7 @@ use rustc_macros::HashStable_Generic;
 use rustc_span::symbol::{kw, sym, Symbol};
 use rustc_span::Span;
 
-use std::lazy::SyncLazy;
+use std::sync::LazyLock;
 
 pub enum LangItemGroup {
     Op,
@@ -134,7 +134,7 @@ macro_rules! language_item_table {
         }
 
         /// A mapping from the name of the lang item to its order and the form it must be of.
-        pub static ITEM_REFS: SyncLazy<FxHashMap<Symbol, (usize, Target)>> = SyncLazy::new(|| {
+        pub static ITEM_REFS: LazyLock<FxHashMap<Symbol, (usize, Target)>> = LazyLock::new(|| {
             let mut item_refs = FxHashMap::default();
             $( item_refs.insert($module::$name, (LangItem::$variant as usize, $target)); )*
             item_refs

compiler/rustc_hir/src/weak_lang_items.rs

@@ -7,12 +7,12 @@ use rustc_ast as ast;
 use rustc_data_structures::stable_map::StableMap;
 use rustc_span::symbol::{sym, Symbol};
 
-use std::lazy::SyncLazy;
+use std::sync::LazyLock;
 
 macro_rules! weak_lang_items {
     ($($name:ident, $item:ident, $sym:ident;)*) => (
 
-pub static WEAK_ITEMS_REFS: SyncLazy<StableMap<Symbol, LangItem>> = SyncLazy::new(|| {
+pub static WEAK_ITEMS_REFS: LazyLock<StableMap<Symbol, LangItem>> = LazyLock::new(|| {
     let mut map = StableMap::default();
     $(map.insert(sym::$name, LangItem::$item);)*
     map

compiler/rustc_interface/src/passes.rs

@@ -44,11 +44,11 @@ use std::any::Any;
 use std::cell::RefCell;
 use std::ffi::OsString;
 use std::io::{self, BufWriter, Write};
-use std::lazy::SyncLazy;
 use std::marker::PhantomPinned;
 use std::path::{Path, PathBuf};
 use std::pin::Pin;
 use std::rc::Rc;
+use std::sync::LazyLock;
 use std::{env, fs, iter};
 
 pub fn parse<'a>(sess: &'a Session, input: &Input) -> PResult<'a, ast::Crate> {
@@ -774,7 +774,7 @@ pub fn prepare_outputs(
     Ok(outputs)
 }
 
-pub static DEFAULT_QUERY_PROVIDERS: SyncLazy<Providers> = SyncLazy::new(|| {
+pub static DEFAULT_QUERY_PROVIDERS: LazyLock<Providers> = LazyLock::new(|| {
     let providers = &mut Providers::default();
     providers.analysis = analysis;
     proc_macro_decls::provide(providers);
@@ -799,7 +799,7 @@ pub static DEFAULT_QUERY_PROVIDERS: SyncLazy<Providers> = SyncLazy::new(|| {
     *providers
 });
 
-pub static DEFAULT_EXTERN_QUERY_PROVIDERS: SyncLazy<ExternProviders> = SyncLazy::new(|| {
+pub static DEFAULT_EXTERN_QUERY_PROVIDERS: LazyLock<ExternProviders> = LazyLock::new(|| {
     let mut extern_providers = ExternProviders::default();
     rustc_metadata::provide_extern(&mut extern_providers);
     rustc_codegen_ssa::provide_extern(&mut extern_providers);

compiler/rustc_interface/src/util.rs

@@ -24,12 +24,12 @@ use rustc_span::source_map::FileLoader;
 use rustc_span::symbol::{sym, Symbol};
 use std::env;
 use std::env::consts::{DLL_PREFIX, DLL_SUFFIX};
-use std::lazy::SyncOnceCell;
 use std::mem;
 #[cfg(not(parallel_compiler))]
 use std::panic;
 use std::path::{Path, PathBuf};
 use std::sync::atomic::{AtomicBool, Ordering};
+use std::sync::OnceLock;
 use std::thread;
 use tracing::info;
 
@@ -242,7 +242,7 @@ pub fn get_codegen_backend(
     maybe_sysroot: &Option<PathBuf>,
     backend_name: Option<&str>,
 ) -> Box<dyn CodegenBackend> {
-    static LOAD: SyncOnceCell<unsafe fn() -> Box<dyn CodegenBackend>> = SyncOnceCell::new();
+    static LOAD: OnceLock<unsafe fn() -> Box<dyn CodegenBackend>> = OnceLock::new();
 
     let load = LOAD.get_or_init(|| {
         let default_codegen_backend = option_env!("CFG_DEFAULT_CODEGEN_BACKEND").unwrap_or("llvm");
@@ -265,7 +265,7 @@ pub fn get_codegen_backend(
 // loading, so we leave the code here. It is potentially useful for other tools
 // that want to invoke the rustc binary while linking to rustc as well.
 pub fn rustc_path<'a>() -> Option<&'a Path> {
-    static RUSTC_PATH: SyncOnceCell<Option<PathBuf>> = SyncOnceCell::new();
+    static RUSTC_PATH: OnceLock<Option<PathBuf>> = OnceLock::new();
 
     const BIN_PATH: &str = env!("RUSTC_INSTALL_BINDIR");
 

compiler/rustc_mir_dataflow/src/framework/graphviz.rs

@@ -1,7 +1,7 @@
 //! A helpful diagram for debugging dataflow problems.
 
 use std::borrow::Cow;
-use std::lazy::SyncOnceCell;
+use std::sync::OnceLock;
 use std::{io, ops, str};
 
 use regex::Regex;
@@ -590,7 +590,7 @@ where
 
 macro_rules! regex {
     ($re:literal $(,)?) => {{
-        static RE: SyncOnceCell<regex::Regex> = SyncOnceCell::new();
+        static RE: OnceLock<regex::Regex> = OnceLock::new();
         RE.get_or_init(|| Regex::new($re).unwrap())
     }};
 }