Auto merge of #53150 - kennytm:rollup, r=kennytm

Rollup of 10 pull requests

Successful merges:

 - #52885 (Remove some unused method arguments from typeck)
 - #52886 (cleanup: Remove `Def::GlobalAsm`)
 - #53028 (Building librustc_codegen_llvm in a separate directory)
 - #53052 (fixed broken links to char)
 - #53060 (Change rustdoc style so fully qualified name does not overlap src link)
 - #53068 (Rename Executor trait to Spawn)
 - #53093 (Enable macros to pass $:literal to another macro)
 - #53107 (Remove references to `StaticMutex` which got removed a while ago)
 - #53135 (Rust 2018: Disable catch_expr, not targeted for 2018 edition)
 - #53139 (set emit_debug_gdb_scripts: false for riscv32imac-unknown-none target)

Author: bors

src/Cargo.lock

@@ -2184,30 +2184,10 @@ dependencies = [
 name = "rustc_codegen_llvm"
 version = "0.0.0"
 dependencies = [
- "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)",
- "env_logger 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "flate2 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "jobserver 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 1.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc 0.0.0",
  "rustc-demangle 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc_allocator 0.0.0",
- "rustc_apfloat 0.0.0",
- "rustc_codegen_utils 0.0.0",
- "rustc_data_structures 0.0.0",
- "rustc_errors 0.0.0",
- "rustc_incremental 0.0.0",
  "rustc_llvm 0.0.0",
- "rustc_mir 0.0.0",
- "rustc_platform_intrinsics 0.0.0",
- "rustc_target 0.0.0",
- "serialize 0.0.0",
- "syntax 0.0.0",
- "syntax_pos 0.0.0",
- "tempfile 3.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]

src/bootstrap/check.rs

@@ -137,16 +137,18 @@ impl Step for CodegenBackend {
         let target = self.target;
         let backend = self.backend;
 
+        let out_dir = builder.cargo_out(compiler, Mode::Codegen, target);
+        builder.clear_if_dirty(&out_dir, &librustc_stamp(builder, compiler, target));
+
         let mut cargo = builder.cargo(compiler, Mode::Codegen, target, "check");
-        let features = builder.rustc_features().to_string();
         cargo.arg("--manifest-path").arg(builder.src.join("src/librustc_codegen_llvm/Cargo.toml"));
         rustc_cargo_env(builder, &mut cargo);
 
         // We won't build LLVM if it's not available, as it shouldn't affect `check`.
 
         let _folder = builder.fold_output(|| format!("stage{}-rustc_codegen_llvm", compiler.stage));
         run_cargo(builder,
-                  cargo.arg("--features").arg(features),
+                  &mut cargo,
                   &codegen_backend_stamp(builder, compiler, target, backend),
                   true);
     }

src/bootstrap/compile.rs

@@ -670,16 +670,17 @@ impl Step for CodegenBackend {
             return;
         }
 
+        let out_dir = builder.cargo_out(compiler, Mode::Codegen, target);
+        builder.clear_if_dirty(&out_dir, &librustc_stamp(builder, compiler, target));
+
         let mut cargo = builder.cargo(compiler, Mode::Codegen, target, "build");
-        let mut features = builder.rustc_features().to_string();
         cargo.arg("--manifest-path")
             .arg(builder.src.join("src/librustc_codegen_llvm/Cargo.toml"));
         rustc_cargo_env(builder, &mut cargo);
 
-        features += &build_codegen_backend(&builder, &mut cargo, &compiler, target, backend);
+        let features = build_codegen_backend(&builder, &mut cargo, &compiler, target, backend);
 
-        let tmp_stamp = builder.cargo_out(compiler, Mode::Codegen, target)
-            .join(".tmp.stamp");
+        let tmp_stamp = out_dir.join(".tmp.stamp");
 
         let _folder = builder.fold_output(|| format!("stage{}-rustc_codegen_llvm", compiler.stage));
         let files = run_cargo(builder,

src/bootstrap/lib.rs

@@ -555,8 +555,8 @@ impl Build {
         let suffix = match mode {
             Mode::Std => "-std",
             Mode::Test => "-test",
-            Mode::Codegen => "-rustc",
             Mode::Rustc => "-rustc",
+            Mode::Codegen => "-codegen",
             Mode::ToolBootstrap => "-bootstrap-tools",
             Mode::ToolStd => "-tools",
             Mode::ToolRustc => "-tools",

src/liballoc/boxed.rs

@@ -67,7 +67,7 @@ use core::marker::{Unpin, Unsize};
 use core::mem::{self, PinMut};
 use core::ops::{CoerceUnsized, Deref, DerefMut, Generator, GeneratorState};
 use core::ptr::{self, NonNull, Unique};
-use core::task::{Context, Poll, Executor, SpawnErrorKind, SpawnObjError};
+use core::task::{Context, Poll, Spawn, SpawnErrorKind, SpawnObjError};
 
 use raw_vec::RawVec;
 use str::from_boxed_utf8_unchecked;
@@ -973,11 +973,14 @@ unsafe impl<'a, T, F> UnsafeFutureObj<'a, T> for PinBox<F>
 }
 
 #[unstable(feature = "futures_api", issue = "50547")]
-impl<E> Executor for Box<E>
-    where E: Executor + ?Sized
+impl<Sp> Spawn for Box<Sp>
+    where Sp: Spawn + ?Sized
 {
-    fn spawn_obj(&mut self, task: FutureObj<'static, ()>) -> Result<(), SpawnObjError> {
-        (**self).spawn_obj(task)
+    fn spawn_obj(
+        &mut self,
+        future: FutureObj<'static, ()>,
+    ) -> Result<(), SpawnObjError> {
+        (**self).spawn_obj(future)
     }
 
     fn status(&self) -> Result<(), SpawnErrorKind> {

src/libcore/str/mod.rs

@@ -2117,8 +2117,6 @@ impl str {
     /// This length is in bytes, not [`char`]s or graphemes. In other words,
     /// it may not be what a human considers the length of the string.
     ///
-    /// [`char`]: primitive.char.html
-    ///
     /// # Examples
     ///
     /// Basic usage:
@@ -2590,8 +2588,6 @@ impl str {
     /// Value, and may not match your idea of what a 'character' is. Iteration
     /// over grapheme clusters may be what you actually want.
     ///
-    /// [`char`]: primitive.char.html
-    ///
     /// # Examples
     ///
     /// Basic usage:
@@ -2643,8 +2639,6 @@ impl str {
     /// The iterator yields tuples. The position is first, the [`char`] is
     /// second.
     ///
-    /// [`char`]: primitive.char.html
-    ///
     /// # Examples
     ///
     /// Basic usage:
@@ -2946,7 +2940,6 @@ impl str {
     /// The pattern can be a `&str`, [`char`], or a closure that determines if
     /// a character matches.
     ///
-    /// [`char`]: primitive.char.html
     /// [`None`]: option/enum.Option.html#variant.None
     ///
     /// # Examples
@@ -2994,7 +2987,6 @@ impl str {
     /// The pattern can be a `&str`, [`char`], or a closure that determines if
     /// a character matches.
     ///
-    /// [`char`]: primitive.char.html
     /// [`None`]: option/enum.Option.html#variant.None
     ///
     /// # Examples
@@ -3050,7 +3042,6 @@ impl str {
     /// If the pattern allows a reverse search but its results might differ
     /// from a forward search, the [`rsplit`] method can be used.
     ///
-    /// [`char`]: primitive.char.html
     /// [`rsplit`]: #method.rsplit
     ///
     /// # Examples
@@ -3157,8 +3148,6 @@ impl str {
     /// The pattern can be a `&str`, [`char`], or a closure that determines the
     /// split.
     ///
-    /// [`char`]: primitive.char.html
-    ///
     /// # Iterator behavior
     ///
     /// The returned iterator requires that the pattern supports a reverse
@@ -3224,7 +3213,6 @@ impl str {
     /// elements. This is true for, eg, [`char`] but not for `&str`.
     ///
     /// [`DoubleEndedIterator`]: iter/trait.DoubleEndedIterator.html
-    /// [`char`]: primitive.char.html
     ///
     /// If the pattern allows a reverse search but its results might differ
     /// from a forward search, the [`rsplit_terminator`] method can be used.
@@ -3259,8 +3247,6 @@ impl str {
     /// Additional libraries might provide more complex patterns like
     /// regular expressions.
     ///
-    /// [`char`]: primitive.char.html
-    ///
     /// Equivalent to [`split`], except that the trailing substring is
     /// skipped if empty.
     ///
@@ -3306,8 +3292,6 @@ impl str {
     /// The pattern can be a `&str`, [`char`], or a closure that determines the
     /// split.
     ///
-    /// [`char`]: primitive.char.html
-    ///
     /// # Iterator behavior
     ///
     /// The returned iterator will not be double ended, because it is
@@ -3361,8 +3345,6 @@ impl str {
     /// The pattern can be a `&str`, [`char`], or a closure that
     /// determines the split.
     ///
-    /// [`char`]: primitive.char.html
-    ///
     /// # Iterator behavior
     ///
     /// The returned iterator will not be double ended, because it is not
@@ -3407,16 +3389,13 @@ impl str {
     /// The pattern can be a `&str`, [`char`], or a closure that
     /// determines if a character matches.
     ///
-    /// [`char`]: primitive.char.html
-    ///
     /// # Iterator behavior
     ///
     /// The returned iterator will be a [`DoubleEndedIterator`] if the pattern
     /// allows a reverse search and forward/reverse search yields the same
     /// elements. This is true for, eg, [`char`] but not for `&str`.
     ///
     /// [`DoubleEndedIterator`]: iter/trait.DoubleEndedIterator.html
-    /// [`char`]: primitive.char.html
     ///
     /// If the pattern allows a reverse search but its results might differ
     /// from a forward search, the [`rmatches`] method can be used.
@@ -3446,8 +3425,6 @@ impl str {
     /// The pattern can be a `&str`, [`char`], or a closure that determines if
     /// a character matches.
     ///
-    /// [`char`]: primitive.char.html
-    ///
     /// # Iterator behavior
     ///
     /// The returned iterator requires that the pattern supports a reverse
@@ -3488,8 +3465,6 @@ impl str {
     /// The pattern can be a `&str`, [`char`], or a closure that determines
     /// if a character matches.
     ///
-    /// [`char`]: primitive.char.html
-    ///
     /// # Iterator behavior
     ///
     /// The returned iterator will be a [`DoubleEndedIterator`] if the pattern
@@ -3532,8 +3507,6 @@ impl str {
     /// The pattern can be a `&str`, [`char`], or a closure that determines if a
     /// character matches.
     ///
-    /// [`char`]: primitive.char.html
-    ///
     /// # Iterator behavior
     ///
     /// The returned iterator requires that the pattern supports a reverse
@@ -3665,8 +3638,6 @@ impl str {
     /// The pattern can be a [`char`] or a closure that determines if a
     /// character matches.
     ///
-    /// [`char`]: primitive.char.html
-    ///
     /// # Examples
     ///
     /// Simple patterns:
@@ -3711,8 +3682,6 @@ impl str {
     /// The pattern can be a `&str`, [`char`], or a closure that determines if
     /// a character matches.
     ///
-    /// [`char`]: primitive.char.html
-    ///
     /// # Text directionality
     ///
     /// A string is a sequence of bytes. 'Left' in this context means the first
@@ -3750,8 +3719,6 @@ impl str {
     /// The pattern can be a `&str`, [`char`], or a closure that
     /// determines if a character matches.
     ///
-    /// [`char`]: primitive.char.html
-    ///
     /// # Text directionality
     ///
     /// A string is a sequence of bytes. 'Right' in this context means the last

src/libcore/task/context.rs

@@ -13,15 +13,15 @@
             issue = "50547")]
 
 use fmt;
-use super::{Executor, Waker, LocalWaker};
+use super::{Spawn, Waker, LocalWaker};
 
 /// Information about the currently-running task.
 ///
 /// Contexts are always tied to the stack, since they are set up specifically
 /// when performing a single `poll` step on a task.
 pub struct Context<'a> {
     local_waker: &'a LocalWaker,
-    executor: &'a mut dyn Executor,
+    spawner: &'a mut dyn Spawn,
 }
 
 impl<'a> fmt::Debug for Context<'a> {
@@ -32,13 +32,14 @@ impl<'a> fmt::Debug for Context<'a> {
 }
 
 impl<'a> Context<'a> {
-    /// Create a new task `Context` with the provided `local_waker`, `waker`, and `executor`.
+    /// Create a new task `Context` with the provided `local_waker`, `waker`,
+    /// and `spawner`.
     #[inline]
-    pub fn new(local_waker: &'a LocalWaker, executor: &'a mut dyn Executor) -> Context<'a> {
-        Context {
-            local_waker,
-            executor,
-        }
+    pub fn new(
+        local_waker: &'a LocalWaker,
+        spawner: &'a mut dyn Spawn,
+    ) -> Context<'a> {
+        Context { local_waker, spawner }
     }
 
     /// Get the `LocalWaker` associated with the current task.
@@ -53,40 +54,45 @@ impl<'a> Context<'a> {
         unsafe { &*(self.local_waker as *const LocalWaker as *const Waker) }
     }
 
-    /// Get the default executor associated with this task.
+    /// Get the spawner associated with this task.
     ///
     /// This method is useful primarily if you want to explicitly handle
     /// spawn failures.
     #[inline]
-    pub fn executor(&mut self) -> &mut dyn Executor {
-        self.executor
+    pub fn spawner(&mut self) -> &mut dyn Spawn {
+        self.spawner
     }
 
-    /// Produce a context like the current one, but using the given waker instead.
+    /// Produce a context like the current one, but using the given waker
+    /// instead.
     ///
     /// This advanced method is primarily used when building "internal
     /// schedulers" within a task, where you want to provide some customized
     /// wakeup logic.
     #[inline]
-    pub fn with_waker<'b>(&'b mut self, local_waker: &'b LocalWaker) -> Context<'b> {
+    pub fn with_waker<'b>(
+        &'b mut self,
+        local_waker: &'b LocalWaker,
+    ) -> Context<'b> {
         Context {
             local_waker,
-            executor: self.executor,
+            spawner: self.spawner,
         }
     }
 
-    /// Produce a context like the current one, but using the given executor
+    /// Produce a context like the current one, but using the given spawner
     /// instead.
     ///
     /// This advanced method is primarily used when building "internal
     /// schedulers" within a task.
     #[inline]
-    pub fn with_executor<'b, E>(&'b mut self, executor: &'b mut E) -> Context<'b>
-        where E: Executor
-    {
+    pub fn with_spawner<'b, Sp: Spawn>(
+        &'b mut self,
+        spawner: &'b mut Sp,
+    ) -> Context<'b> {
         Context {
             local_waker: self.local_waker,
-            executor,
+            spawner,
         }
     }
 }

src/libcore/task/mod.rs

@@ -17,10 +17,8 @@
 mod context;
 pub use self::context::Context;
 
-mod executor;
-pub use self::executor::{
-  Executor, SpawnErrorKind, SpawnObjError, SpawnLocalObjError
-};
+mod spawn;
+pub use self::spawn::{Spawn, SpawnErrorKind, SpawnObjError, SpawnLocalObjError};
 
 mod poll;
 pub use self::poll::Poll;