Auto merge of #62449 - Centril:rollup-fbqhf11, r=Centril

Rollup of 6 pull requests Successful merges: - #60081 (Refactor unicode.py script) - #61862 (Make the Weak::{into,as}_raw methods) - #62243 (Improve documentation for built-in macros) - #62422 (Remove some uses of mem::uninitialized) - #62432 (Update rustfmt to 1.3.2) - #62436 (normalize use of backticks/lowercase in compiler messages for librustc_mir) Failed merges: r? @ghost
rust-lang · Jul 6, 2019 · 240ee60 · 240ee60
2 parents 254f201 + a63886c
commit 240ee60
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diff --git a/.gitignore b/.gitignore
@@ -36,6 +36,7 @@ __pycache__/
 /src/libcore/unicode/Scripts.txt
 /src/libcore/unicode/SpecialCasing.txt
 /src/libcore/unicode/UnicodeData.txt
+/src/libcore/unicode/downloaded
 /stage[0-9]+/
 /target
 target/

diff --git a/Cargo.lock b/Cargo.lock
@@ -327,18 +327,6 @@ dependencies = [
  "syn 0.15.35 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
-[[package]]
-name = "cargo_metadata"
-version = "0.7.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-dependencies = [
- "error-chain 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 1.0.92 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_derive 1.0.81 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.33 (registry+https://github.com/rust-lang/crates.io-index)",
-]
-
 [[package]]
 name = "cargo_metadata"
 version = "0.8.0"
@@ -794,12 +782,11 @@ dependencies = [
 
 [[package]]
 name = "dirs"
-version = "1.0.5"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.54 (registry+https://github.com/rust-lang/crates.io-index)",
- "redox_users 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cfg-if 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dirs-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2386,7 +2373,7 @@ dependencies = [
  "rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-workspace-hack 1.0.0",
  "rustc_tools_util 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustfmt-nightly 1.3.0",
+ "rustfmt-nightly 1.3.2",
  "serde 1.0.92 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.81 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_ignored 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3212,7 +3199,7 @@ dependencies = [
 
 [[package]]
 name = "rustfmt-config_proc_macro"
-version = "0.1.0"
+version = "0.1.2"
 dependencies = [
  "proc-macro2 0.4.30 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 0.6.12 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3222,15 +3209,15 @@ dependencies = [
 
 [[package]]
 name = "rustfmt-nightly"
-version = "1.3.0"
+version = "1.3.2"
 dependencies = [
  "annotate-snippets 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "bytecount 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "cargo_metadata 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "cargo_metadata 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "derive-new 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "diff 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "dirs 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "dirs 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "getopts 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3243,10 +3230,10 @@ dependencies = [
  "rustc-ap-syntax 491.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-ap-syntax_pos 491.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-workspace-hack 1.0.0",
- "rustfmt-config_proc_macro 0.1.0",
+ "rustfmt-config_proc_macro 0.1.2",
  "serde 1.0.92 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "structopt 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "structopt 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "term 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-segmentation 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3489,16 +3476,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "structopt"
-version = "0.2.16"
+version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "structopt-derive 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "structopt-derive 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "structopt-derive"
-version = "0.2.16"
+version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "heck 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4237,7 +4224,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum byteorder 1.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "94f88df23a25417badc922ab0f5716cc1330e87f71ddd9203b3a3ccd9cedf75d"
 "checksum bytes 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)" = "40ade3d27603c2cb345eb0912aec461a6dec7e06a4ae48589904e808335c7afa"
 "checksum bytesize 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "716960a18f978640f25101b5cbf1c6f6b0d3192fab36a2d98ca96f0ecbe41010"
-"checksum cargo_metadata 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "585784cac9b05c93a53b17a0b24a5cdd1dfdda5256f030e089b549d2390cc720"
 "checksum cargo_metadata 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "929766d993a2fde7a0ae962ee82429069cd7b68839cd9375b98efd719df65d3a"
 "checksum cc 1.0.35 (registry+https://github.com/rust-lang/crates.io-index)" = "5e5f3fee5eeb60324c2781f1e41286bdee933850fff9b3c672587fed5ec58c83"
 "checksum cfg-if 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "89431bba4e6b7092fb5fcd00a6f6ca596c55cc26b2f1e6dcdd08a1f4933f66b2"
@@ -4277,7 +4263,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum difference 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "524cbf6897b527295dff137cec09ecf3a05f4fddffd7dfcd1585403449e74198"
 "checksum digest 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)" = "03b072242a8cbaf9c145665af9d250c59af3b958f83ed6824e13533cf76d5b90"
 "checksum directories 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2ccc83e029c3cebb4c8155c644d34e3a070ccdb4ff90d369c74cd73f7cb3c984"
-"checksum dirs 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "3fd78930633bd1c6e35c4b42b1df7b0cbc6bc191146e512bb3bedf243fcc3901"
+"checksum dirs 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1c4ef5a8b902d393339e2a2c7fe573af92ce7e0ee5a3ff827b4c9ad7e07e4fa1"
 "checksum dirs-sys 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "937756392ec77d1f2dd9dc3ac9d69867d109a2121479d72c364e42f4cab21e2d"
 "checksum dlmalloc 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "f283302e035e61c23f2b86b3093e8c6273a4c3125742d6087e96ade001ca5e63"
 "checksum either 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3be565ca5c557d7f59e7cfcf1844f9e3033650c929c6566f511e8005f205c1d0"
@@ -4489,8 +4475,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum string_cache_shared 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b1884d1bc09741d466d9b14e6d37ac89d6909cbcac41dd9ae982d4d063bbedfc"
 "checksum strip-ansi-escapes 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9d63676e2abafa709460982ddc02a3bb586b6d15a49b75c212e06edd3933acee"
 "checksum strsim 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bb4f380125926a99e52bc279241539c018323fab05ad6368b56f93d9369ff550"
-"checksum structopt 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)" = "fa19a5a708e22bb5be31c1b6108a2a902f909c4b9ba85cba44c06632386bc0ff"
-"checksum structopt-derive 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)" = "c6d59d0ae8ef8de16e49e3ca7afa16024a3e0dfd974a75ef93fdc5464e34523f"
+"checksum structopt 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)" = "16c2cdbf9cc375f15d1b4141bc48aeef444806655cd0e904207edc8d68d86ed7"
+"checksum structopt-derive 0.2.18 (registry+https://github.com/rust-lang/crates.io-index)" = "53010261a84b37689f9ed7d395165029f9cc7abb9f56bbfe86bee2597ed25107"
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 "checksum strum_macros 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8baacebd7b7c9b864d83a6ba7a246232983e277b86fa5cdec77f565715a4b136"
 "checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"

diff --git a/src/liballoc/rc.rs b/src/liballoc/rc.rs
@@ -1291,26 +1291,26 @@ impl<T> Weak<T> {
     /// ```
     /// #![feature(weak_into_raw)]
     ///
-    /// use std::rc::{Rc, Weak};
+    /// use std::rc::Rc;
     /// use std::ptr;
     ///
     /// let strong = Rc::new("hello".to_owned());
     /// let weak = Rc::downgrade(&strong);
     /// // Both point to the same object
-    /// assert!(ptr::eq(&*strong, Weak::as_raw(&weak)));
+    /// assert!(ptr::eq(&*strong, weak.as_raw()));
     /// // The strong here keeps it alive, so we can still access the object.
-    /// assert_eq!("hello", unsafe { &*Weak::as_raw(&weak) });
+    /// assert_eq!("hello", unsafe { &*weak.as_raw() });
     ///
     /// drop(strong);
-    /// // But not any more. We can do Weak::as_raw(&weak), but accessing the pointer would lead to
+    /// // But not any more. We can do weak.as_raw(), but accessing the pointer would lead to
     /// // undefined behaviour.
-    /// // assert_eq!("hello", unsafe { &*Weak::as_raw(&weak) });
+    /// // assert_eq!("hello", unsafe { &*weak.as_raw() });
     /// ```
     ///
     /// [`null`]: ../../std/ptr/fn.null.html
     #[unstable(feature = "weak_into_raw", issue = "60728")]
-    pub fn as_raw(this: &Self) -> *const T {
-        match this.inner() {
+    pub fn as_raw(&self) -> *const T {
+        match self.inner() {
             None => ptr::null(),
             Some(inner) => {
                 let offset = data_offset_sized::<T>();
@@ -1341,7 +1341,7 @@ impl<T> Weak<T> {
     ///
     /// let strong = Rc::new("hello".to_owned());
     /// let weak = Rc::downgrade(&strong);
-    /// let raw = Weak::into_raw(weak);
+    /// let raw = weak.into_raw();
     ///
     /// assert_eq!(1, Rc::weak_count(&strong));
     /// assert_eq!("hello", unsafe { &*raw });
@@ -1353,9 +1353,9 @@ impl<T> Weak<T> {
     /// [`from_raw`]: struct.Weak.html#method.from_raw
     /// [`as_raw`]: struct.Weak.html#method.as_raw
     #[unstable(feature = "weak_into_raw", issue = "60728")]
-    pub fn into_raw(this: Self) -> *const T {
-        let result = Self::as_raw(&this);
-        mem::forget(this);
+    pub fn into_raw(self) -> *const T {
+        let result = self.as_raw();
+        mem::forget(self);
         result
     }
 
@@ -1382,18 +1382,18 @@ impl<T> Weak<T> {
     ///
     /// let strong = Rc::new("hello".to_owned());
     ///
-    /// let raw_1 = Weak::into_raw(Rc::downgrade(&strong));
-    /// let raw_2 = Weak::into_raw(Rc::downgrade(&strong));
+    /// let raw_1 = Rc::downgrade(&strong).into_raw();
+    /// let raw_2 = Rc::downgrade(&strong).into_raw();
     ///
     /// assert_eq!(2, Rc::weak_count(&strong));
     ///
-    /// assert_eq!("hello", &*Weak::upgrade(&unsafe { Weak::from_raw(raw_1) }).unwrap());
+    /// assert_eq!("hello", &*unsafe { Weak::from_raw(raw_1) }.upgrade().unwrap());
     /// assert_eq!(1, Rc::weak_count(&strong));
     ///
     /// drop(strong);
     ///
     /// // Decrement the last weak count.
-    /// assert!(Weak::upgrade(&unsafe { Weak::from_raw(raw_2) }).is_none());
+    /// assert!(unsafe { Weak::from_raw(raw_2) }.upgrade().is_none());
     /// ```
     ///
     /// [`null`]: ../../std/ptr/fn.null.html

diff --git a/src/liballoc/sync.rs b/src/liballoc/sync.rs
@@ -1080,26 +1080,26 @@ impl<T> Weak<T> {
     /// ```
     /// #![feature(weak_into_raw)]
     ///
-    /// use std::sync::{Arc, Weak};
+    /// use std::sync::Arc;
     /// use std::ptr;
     ///
     /// let strong = Arc::new("hello".to_owned());
     /// let weak = Arc::downgrade(&strong);
     /// // Both point to the same object
-    /// assert!(ptr::eq(&*strong, Weak::as_raw(&weak)));
+    /// assert!(ptr::eq(&*strong, weak.as_raw()));
     /// // The strong here keeps it alive, so we can still access the object.
-    /// assert_eq!("hello", unsafe { &*Weak::as_raw(&weak) });
+    /// assert_eq!("hello", unsafe { &*weak.as_raw() });
     ///
     /// drop(strong);
-    /// // But not any more. We can do Weak::as_raw(&weak), but accessing the pointer would lead to
+    /// // But not any more. We can do weak.as_raw(), but accessing the pointer would lead to
     /// // undefined behaviour.
-    /// // assert_eq!("hello", unsafe { &*Weak::as_raw(&weak) });
+    /// // assert_eq!("hello", unsafe { &*weak.as_raw() });
     /// ```
     ///
     /// [`null`]: ../../std/ptr/fn.null.html
     #[unstable(feature = "weak_into_raw", issue = "60728")]
-    pub fn as_raw(this: &Self) -> *const T {
-        match this.inner() {
+    pub fn as_raw(&self) -> *const T {
+        match self.inner() {
             None => ptr::null(),
             Some(inner) => {
                 let offset = data_offset_sized::<T>();
@@ -1130,7 +1130,7 @@ impl<T> Weak<T> {
     ///
     /// let strong = Arc::new("hello".to_owned());
     /// let weak = Arc::downgrade(&strong);
-    /// let raw = Weak::into_raw(weak);
+    /// let raw = weak.into_raw();
     ///
     /// assert_eq!(1, Arc::weak_count(&strong));
     /// assert_eq!("hello", unsafe { &*raw });
@@ -1142,9 +1142,9 @@ impl<T> Weak<T> {
     /// [`from_raw`]: struct.Weak.html#method.from_raw
     /// [`as_raw`]: struct.Weak.html#method.as_raw
     #[unstable(feature = "weak_into_raw", issue = "60728")]
-    pub fn into_raw(this: Self) -> *const T {
-        let result = Self::as_raw(&this);
-        mem::forget(this);
+    pub fn into_raw(self) -> *const T {
+        let result = self.as_raw();
+        mem::forget(self);
         result
     }
 
@@ -1172,18 +1172,18 @@ impl<T> Weak<T> {
     ///
     /// let strong = Arc::new("hello".to_owned());
     ///
-    /// let raw_1 = Weak::into_raw(Arc::downgrade(&strong));
-    /// let raw_2 = Weak::into_raw(Arc::downgrade(&strong));
+    /// let raw_1 = Arc::downgrade(&strong).into_raw();
+    /// let raw_2 = Arc::downgrade(&strong).into_raw();
     ///
     /// assert_eq!(2, Arc::weak_count(&strong));
     ///
-    /// assert_eq!("hello", &*Weak::upgrade(&unsafe { Weak::from_raw(raw_1) }).unwrap());
+    /// assert_eq!("hello", &*unsafe { Weak::from_raw(raw_1) }.upgrade().unwrap());
     /// assert_eq!(1, Arc::weak_count(&strong));
     ///
     /// drop(strong);
     ///
     /// // Decrement the last weak count.
-    /// assert!(Weak::upgrade(&unsafe { Weak::from_raw(raw_2) }).is_none());
+    /// assert!(unsafe { Weak::from_raw(raw_2) }.upgrade().is_none());
     /// ```
     ///
     /// [`null`]: ../../std/ptr/fn.null.html

diff --git a/src/libcore/lib.rs b/src/libcore/lib.rs
@@ -75,6 +75,7 @@
 #![feature(const_fn)]
 #![feature(const_fn_union)]
 #![feature(custom_inner_attributes)]
+#![feature(decl_macro)]
 #![feature(doc_cfg)]
 #![feature(doc_spotlight)]
 #![feature(extern_types)]