Rollup merge of #136395 - ChrisDenton:rand-0-9, r=Mark-Simulacrum

Update to rand 0.9.0

Changes include:

- `thread_rng` has been renamed to `rng`
- `Standard` has been renamed to `StandardUniform`
- `gen`, `gen_range`, `gen_bool` have been renamed to `random`, `random_range` and `random_bool` respectively.

9 files changed, 63 insertions, 35 deletions

diff --git a/Cargo.lock b/Cargo.lock
index ecd26d6199c..ea93fbd01f0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2881,11 +2881,11 @@ dependencies = [
 
 [[package]]
 name = "rand_xoshiro"
-version = "0.6.0"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f97cdb2a36ed4183de61b2f824cc45c9f1037f28afe0a322e9fff4c108b5aaa"
+checksum = "f703f4665700daf5512dcca5f43afa6af89f09db47fb56be587f80636bda2d41"
 dependencies = [
- "rand_core 0.6.4",
+ "rand_core 0.9.0",
 ]
 
 [[package]]
@@ -3155,7 +3155,7 @@ name = "rustc_abi"
 version = "0.0.0"
 dependencies = [
  "bitflags",
- "rand 0.8.5",
+ "rand 0.9.0",
  "rand_xoshiro",
  "rustc_data_structures",
  "rustc_hashes",
@@ -3789,7 +3789,7 @@ dependencies = [
 name = "rustc_incremental"
 version = "0.0.0"
 dependencies = [
- "rand 0.8.5",
+ "rand 0.9.0",
  "rustc_ast",
  "rustc_data_structures",
  "rustc_errors",
@@ -5176,8 +5176,8 @@ version = "0.1.0"
 dependencies = [
  "indicatif",
  "num",
- "rand 0.8.5",
- "rand_chacha 0.3.1",
+ "rand 0.9.0",
+ "rand_chacha 0.9.0",
  "rayon",
 ]
 
diff --git a/compiler/rustc_abi/Cargo.toml b/compiler/rustc_abi/Cargo.toml
index 4713b3474bd..9cb6619adc9 100644
--- a/compiler/rustc_abi/Cargo.toml
+++ b/compiler/rustc_abi/Cargo.toml
@@ -6,13 +6,13 @@ edition = "2024"
 [dependencies]
 # tidy-alphabetical-start
 bitflags = "2.4.1"
-rand = { version = "0.8.4", default-features = false, optional = true }
-rand_xoshiro = { version = "0.6.0", optional = true }
-rustc_data_structures = { path = "../rustc_data_structures", optional = true  }
+rand = { version = "0.9.0", default-features = false, optional = true }
+rand_xoshiro = { version = "0.7.0", optional = true }
+rustc_data_structures = { path = "../rustc_data_structures", optional = true }
 rustc_hashes = { path = "../rustc_hashes" }
 rustc_index = { path = "../rustc_index", default-features = false }
 rustc_macros = { path = "../rustc_macros", optional = true }
-rustc_serialize = { path = "../rustc_serialize", optional = true  }
+rustc_serialize = { path = "../rustc_serialize", optional = true }
 rustc_span = { path = "../rustc_span", optional = true }
 tracing = "0.1"
 # tidy-alphabetical-end
diff --git a/compiler/rustc_incremental/Cargo.toml b/compiler/rustc_incremental/Cargo.toml
index 754881309bf..4e5061f4f69 100644
--- a/compiler/rustc_incremental/Cargo.toml
+++ b/compiler/rustc_incremental/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2024"
 
 [dependencies]
 # tidy-alphabetical-start
-rand = "0.8.4"
+rand = "0.9.0"
 rustc_ast = { path = "../rustc_ast" }
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_errors = { path = "../rustc_errors" }
diff --git a/compiler/rustc_incremental/src/persist/fs.rs b/compiler/rustc_incremental/src/persist/fs.rs
index 19cca48af61..76a1ff3cf38 100644
--- a/compiler/rustc_incremental/src/persist/fs.rs
+++ b/compiler/rustc_incremental/src/persist/fs.rs
@@ -108,7 +108,7 @@ use std::io::{self, ErrorKind};
 use std::path::{Path, PathBuf};
 use std::time::{Duration, SystemTime, UNIX_EPOCH};
 
-use rand::{RngCore, thread_rng};
+use rand::{RngCore, rng};
 use rustc_data_structures::base_n::{BaseNString, CASE_INSENSITIVE, ToBaseN};
 use rustc_data_structures::fx::{FxHashSet, FxIndexSet};
 use rustc_data_structures::svh::Svh;
@@ -445,7 +445,7 @@ fn copy_files(sess: &Session, target_dir: &Path, source_dir: &Path) -> Result<bo
 fn generate_session_dir_path(crate_dir: &Path) -> PathBuf {
     let timestamp = timestamp_to_string(SystemTime::now());
     debug!("generate_session_dir_path: timestamp = {}", timestamp);
-    let random_number = thread_rng().next_u32();
+    let random_number = rng().next_u32();
     debug!("generate_session_dir_path: random_number = {}", random_number);
 
     // Chop the first 3 characters off the timestamp. Those 3 bytes will be zero for a while.
diff --git a/src/etc/test-float-parse/Cargo.toml b/src/etc/test-float-parse/Cargo.toml
index 56cb5cddeea..bacb9e09f3f 100644
--- a/src/etc/test-float-parse/Cargo.toml
+++ b/src/etc/test-float-parse/Cargo.toml
@@ -7,8 +7,8 @@ publish = false
 [dependencies]
 indicatif = { version = "0.17.8", default-features = false }
 num = "0.4.3"
-rand = "0.8.5"
-rand_chacha = "0.3"
+rand = "0.9.0"
+rand_chacha = "0.9.0"
 rayon = "1"
 
 [lib]
diff --git a/src/etc/test-float-parse/src/gen/fuzz.rs b/src/etc/test-float-parse/src/gen/fuzz.rs
index 7fc999d1671..1d6c5562a14 100644
--- a/src/etc/test-float-parse/src/gen/fuzz.rs
+++ b/src/etc/test-float-parse/src/gen/fuzz.rs
@@ -6,7 +6,7 @@ use std::ops::Range;
 use std::sync::Mutex;
 
 use rand::Rng;
-use rand::distributions::{Distribution, Standard};
+use rand::distr::{Distribution, StandardUniform};
 use rand_chacha::ChaCha8Rng;
 use rand_chacha::rand_core::SeedableRng;
 
@@ -47,7 +47,7 @@ impl<F: Float> Fuzz<F> {
 
 impl<F: Float> Generator<F> for Fuzz<F>
 where
-    Standard: Distribution<<F as Float>::Int>,
+    StandardUniform: Distribution<<F as Float>::Int>,
 {
     const SHORT_NAME: &'static str = "fuzz";
 
@@ -74,13 +74,13 @@ where
 
 impl<F: Float> Iterator for Fuzz<F>
 where
-    Standard: Distribution<<F as Float>::Int>,
+    StandardUniform: Distribution<<F as Float>::Int>,
 {
     type Item = <Self as Generator<F>>::WriteCtx;
 
     fn next(&mut self) -> Option<Self::Item> {
         let _ = self.iter.next()?;
-        let i: F::Int = self.rng.gen();
+        let i: F::Int = self.rng.random();
 
         Some(F::from_bits(i))
     }
diff --git a/src/etc/test-float-parse/src/gen/many_digits.rs b/src/etc/test-float-parse/src/gen/many_digits.rs
index aab8d5d704b..741e11437fe 100644
--- a/src/etc/test-float-parse/src/gen/many_digits.rs
+++ b/src/etc/test-float-parse/src/gen/many_digits.rs
@@ -3,7 +3,7 @@ use std::fmt::Write;
 use std::marker::PhantomData;
 use std::ops::{Range, RangeInclusive};
 
-use rand::distributions::{Distribution, Uniform};
+use rand::distr::{Distribution, Uniform};
 use rand::{Rng, SeedableRng};
 use rand_chacha::ChaCha8Rng;
 
@@ -40,7 +40,7 @@ impl<F: Float> Generator<F> for RandDigits<F> {
 
     fn new() -> Self {
         let rng = ChaCha8Rng::from_seed(SEED);
-        let range = Uniform::from(0..10);
+        let range = Uniform::try_from(0..10).unwrap();
 
         Self { rng, iter: 0..ITERATIONS, uniform: range, marker: PhantomData }
     }
@@ -55,11 +55,11 @@ impl<F: Float> Iterator for RandDigits<F> {
 
     fn next(&mut self) -> Option<Self::Item> {
         let _ = self.iter.next()?;
-        let num_digits = self.rng.gen_range(POSSIBLE_NUM_DIGITS);
-        let has_decimal = self.rng.gen_bool(0.2);
-        let has_exp = self.rng.gen_bool(0.2);
+        let num_digits = self.rng.random_range(POSSIBLE_NUM_DIGITS);
+        let has_decimal = self.rng.random_bool(0.2);
+        let has_exp = self.rng.random_bool(0.2);
 
-        let dec_pos = if has_decimal { Some(self.rng.gen_range(0..num_digits)) } else { None };
+        let dec_pos = if has_decimal { Some(self.rng.random_range(0..num_digits)) } else { None };
 
         let mut s = String::with_capacity(num_digits);
 
@@ -75,7 +75,7 @@ impl<F: Float> Iterator for RandDigits<F> {
         }
 
         if has_exp {
-            let exp = self.rng.gen_range(EXP_RANGE);
+            let exp = self.rng.random_range(EXP_RANGE);
             write!(s, "e{exp}").unwrap();
         }
 
diff --git a/src/etc/test-float-parse/src/lib.rs b/src/etc/test-float-parse/src/lib.rs
index def66398d9f..e2f84b085c6 100644
--- a/src/etc/test-float-parse/src/lib.rs
+++ b/src/etc/test-float-parse/src/lib.rs
@@ -10,7 +10,7 @@ use std::sync::OnceLock;
 use std::sync::atomic::{AtomicU64, Ordering};
 use std::{fmt, time};
 
-use rand::distributions::{Distribution, Standard};
+use rand::distr::{Distribution, StandardUniform};
 use rayon::prelude::*;
 use time::{Duration, Instant};
 use traits::{Float, Generator, Int};
@@ -132,7 +132,7 @@ fn register_float<F: Float>(tests: &mut Vec<TestInfo>, cfg: &Config)
 where
     RangeInclusive<F::Int>: Iterator<Item = F::Int>,
     <F::Int as TryFrom<u128>>::Error: std::fmt::Debug,
-    Standard: Distribution<<F as traits::Float>::Int>,
+    StandardUniform: Distribution<<F as traits::Float>::Int>,
 {
     if F::BITS <= MAX_BITS_FOR_EXHAUUSTIVE {
         // Only run exhaustive tests if there is a chance of completion.
diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs
index 51e58b4e4fc..5434e708bb7 100644
--- a/src/tools/tidy/src/deps.rs
+++ b/src/tools/tidy/src/deps.rs
@@ -1,11 +1,12 @@
 //! Checks the licenses of third-party dependencies.
 
-use std::collections::HashSet;
+use std::collections::{HashMap, HashSet};
 use std::fs::{File, read_dir};
 use std::io::Write;
 use std::path::Path;
 
 use build_helper::ci::CiEnv;
+use cargo_metadata::semver::Version;
 use cargo_metadata::{Metadata, Package, PackageId};
 
 #[path = "../../../bootstrap/src/utils/proc_macro_deps.rs"]
@@ -446,6 +447,7 @@ const PERMITTED_RUSTC_DEPENDENCIES: &[&str] = &[
     "windows_x86_64_gnu",
     "windows_x86_64_gnullvm",
     "windows_x86_64_msvc",
+    "wit-bindgen-rt@0.33.0", // via wasi
     "writeable",
     "yoke",
     "yoke-derive",
@@ -803,7 +805,17 @@ fn check_permitted_dependencies(
 
     // Check that the PERMITTED_DEPENDENCIES does not have unused entries.
     for permitted in permitted_dependencies {
-        if !deps.iter().any(|dep_id| &pkg_from_id(metadata, dep_id).name == permitted) {
+        fn compare(pkg: &Package, permitted: &str) -> bool {
+            if let Some((name, version)) = permitted.split_once("@") {
+                let Ok(version) = Version::parse(version) else {
+                    return false;
+                };
+                pkg.name == name && pkg.version == version
+            } else {
+                pkg.name == permitted
+            }
+        }
+        if !deps.iter().any(|dep_id| compare(pkg_from_id(metadata, dep_id), permitted)) {
             tidy_error!(
                 bad,
                 "could not find allowed package `{permitted}`\n\
@@ -814,14 +826,30 @@ fn check_permitted_dependencies(
     }
 
     // Get in a convenient form.
-    let permitted_dependencies: HashSet<_> = permitted_dependencies.iter().cloned().collect();
+    let permitted_dependencies: HashMap<_, _> = permitted_dependencies
+        .iter()
+        .map(|s| {
+            if let Some((name, version)) = s.split_once('@') {
+                (name, Version::parse(version).ok())
+            } else {
+                (*s, None)
+            }
+        })
+        .collect();
 
     for dep in deps {
         let dep = pkg_from_id(metadata, dep);
         // If this path is in-tree, we don't require it to be explicitly permitted.
-        if dep.source.is_some() && !permitted_dependencies.contains(dep.name.as_str()) {
-            tidy_error!(bad, "Dependency for {descr} not explicitly permitted: {}", dep.id);
-            has_permitted_dep_error = true;
+        if dep.source.is_some() {
+            let is_eq = if let Some(version) = permitted_dependencies.get(dep.name.as_str()) {
+                if let Some(version) = version { version == &dep.version } else { true }
+            } else {
+                false
+            };
+            if !is_eq {
+                tidy_error!(bad, "Dependency for {descr} not explicitly permitted: {}", dep.id);
+                has_permitted_dep_error = true;
+            }
         }
     }