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Rollup merge of #70029 - jonas-schievink:bootstrap, r=Centril
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Bump the bootstrap compiler
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Centril authored Mar 17, 2020
2 parents 3d25622 + f53f9a8 commit f907598
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Showing 9 changed files with 9 additions and 108 deletions.
10 changes: 2 additions & 8 deletions src/bootstrap/builder.rs
Original file line number Diff line number Diff line change
Expand Up @@ -725,7 +725,7 @@ impl<'a> Builder<'a> {
self.clear_if_dirty(&my_out, &rustdoc);
}

cargo.env("CARGO_TARGET_DIR", &out_dir).arg(cmd).arg("-Zconfig-profile");
cargo.env("CARGO_TARGET_DIR", &out_dir).arg(cmd);

let profile_var = |name: &str| {
let profile = if self.config.rust_optimize { "RELEASE" } else { "DEV" };
Expand Down Expand Up @@ -847,13 +847,7 @@ impl<'a> Builder<'a> {
rustflags.arg("-Zforce-unstable-if-unmarked");
}

// cfg(bootstrap): the flag was renamed from `-Zexternal-macro-backtrace`
// to `-Zmacro-backtrace`, keep only the latter after beta promotion.
if stage == 0 {
rustflags.arg("-Zexternal-macro-backtrace");
} else {
rustflags.arg("-Zmacro-backtrace");
}
rustflags.arg("-Zmacro-backtrace");

let want_rustdoc = self.doc_tests != DocTests::No;

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2 changes: 1 addition & 1 deletion src/bootstrap/channel.rs
Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@ use build_helper::output;
use crate::Build;

// The version number
pub const CFG_RELEASE_NUM: &str = "1.43.0";
pub const CFG_RELEASE_NUM: &str = "1.44.0";

pub struct GitInfo {
inner: Option<Info>,
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24 changes: 0 additions & 24 deletions src/liballoc/boxed.rs
Original file line number Diff line number Diff line change
Expand Up @@ -1105,29 +1105,6 @@ impl<T: ?Sized> AsMut<T> for Box<T> {
#[stable(feature = "pin", since = "1.33.0")]
impl<T: ?Sized> Unpin for Box<T> {}

#[cfg(bootstrap)]
#[unstable(feature = "generator_trait", issue = "43122")]
impl<G: ?Sized + Generator + Unpin> Generator for Box<G> {
type Yield = G::Yield;
type Return = G::Return;

fn resume(mut self: Pin<&mut Self>) -> GeneratorState<Self::Yield, Self::Return> {
G::resume(Pin::new(&mut *self))
}
}

#[cfg(bootstrap)]
#[unstable(feature = "generator_trait", issue = "43122")]
impl<G: ?Sized + Generator> Generator for Pin<Box<G>> {
type Yield = G::Yield;
type Return = G::Return;

fn resume(mut self: Pin<&mut Self>) -> GeneratorState<Self::Yield, Self::Return> {
G::resume((*self).as_mut())
}
}

#[cfg(not(bootstrap))]
#[unstable(feature = "generator_trait", issue = "43122")]
impl<G: ?Sized + Generator<R> + Unpin, R> Generator<R> for Box<G> {
type Yield = G::Yield;
Expand All @@ -1138,7 +1115,6 @@ impl<G: ?Sized + Generator<R> + Unpin, R> Generator<R> for Box<G> {
}
}

#[cfg(not(bootstrap))]
#[unstable(feature = "generator_trait", issue = "43122")]
impl<G: ?Sized + Generator<R>, R> Generator<R> for Pin<Box<G>> {
type Yield = G::Yield;
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2 changes: 1 addition & 1 deletion src/libcore/cell.rs
Original file line number Diff line number Diff line change
Expand Up @@ -1569,7 +1569,7 @@ impl<T: ?Sized + fmt::Display> fmt::Display for RefMut<'_, T> {
#[lang = "unsafe_cell"]
#[stable(feature = "rust1", since = "1.0.0")]
#[repr(transparent)]
#[cfg_attr(not(bootstrap), repr(no_niche))] // rust-lang/rust#68303.
#[repr(no_niche)] // rust-lang/rust#68303.
pub struct UnsafeCell<T: ?Sized> {
value: T,
}
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2 changes: 1 addition & 1 deletion src/libcore/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -140,7 +140,7 @@
#![feature(associated_type_bounds)]
#![feature(const_type_id)]
#![feature(const_caller_location)]
#![cfg_attr(not(bootstrap), feature(no_niche))] // rust-lang/rust#68303
#![feature(no_niche)] // rust-lang/rust#68303

#[prelude_import]
#[allow(unused)]
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31 changes: 2 additions & 29 deletions src/libcore/ops/generator.rs
Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ pub enum GeneratorState<Y, R> {
#[lang = "generator"]
#[unstable(feature = "generator_trait", issue = "43122")]
#[fundamental]
pub trait Generator<#[cfg(not(bootstrap))] R = ()> {
pub trait Generator<R = ()> {
/// The type of value this generator yields.
///
/// This associated type corresponds to the `yield` expression and the
Expand Down Expand Up @@ -110,35 +110,9 @@ pub trait Generator<#[cfg(not(bootstrap))] R = ()> {
/// been returned previously. While generator literals in the language are
/// guaranteed to panic on resuming after `Complete`, this is not guaranteed
/// for all implementations of the `Generator` trait.
fn resume(
self: Pin<&mut Self>,
#[cfg(not(bootstrap))] arg: R,
) -> GeneratorState<Self::Yield, Self::Return>;
fn resume(self: Pin<&mut Self>, arg: R) -> GeneratorState<Self::Yield, Self::Return>;
}

#[cfg(bootstrap)]
#[unstable(feature = "generator_trait", issue = "43122")]
impl<G: ?Sized + Generator> Generator for Pin<&mut G> {
type Yield = G::Yield;
type Return = G::Return;

fn resume(mut self: Pin<&mut Self>) -> GeneratorState<Self::Yield, Self::Return> {
G::resume((*self).as_mut())
}
}

#[cfg(bootstrap)]
#[unstable(feature = "generator_trait", issue = "43122")]
impl<G: ?Sized + Generator + Unpin> Generator for &mut G {
type Yield = G::Yield;
type Return = G::Return;

fn resume(mut self: Pin<&mut Self>) -> GeneratorState<Self::Yield, Self::Return> {
G::resume(Pin::new(&mut *self))
}
}

#[cfg(not(bootstrap))]
#[unstable(feature = "generator_trait", issue = "43122")]
impl<G: ?Sized + Generator<R>, R> Generator<R> for Pin<&mut G> {
type Yield = G::Yield;
Expand All @@ -149,7 +123,6 @@ impl<G: ?Sized + Generator<R>, R> Generator<R> for Pin<&mut G> {
}
}

#[cfg(not(bootstrap))]
#[unstable(feature = "generator_trait", issue = "43122")]
impl<G: ?Sized + Generator<R> + Unpin, R> Generator<R> for &mut G {
type Yield = G::Yield;
Expand Down
39 changes: 0 additions & 39 deletions src/librustc_data_structures/box_region.rs
Original file line number Diff line number Diff line change
Expand Up @@ -25,22 +25,6 @@ pub struct PinnedGenerator<I, A, R> {
}

impl<I, A, R> PinnedGenerator<I, A, R> {
#[cfg(bootstrap)]
pub fn new<T: Generator<Yield = YieldType<I, A>, Return = R> + 'static>(
generator: T,
) -> (I, Self) {
let mut result = PinnedGenerator { generator: Box::pin(generator) };

// Run it to the first yield to set it up
let init = match Pin::new(&mut result.generator).resume() {
GeneratorState::Yielded(YieldType::Initial(y)) => y,
_ => panic!(),
};

(init, result)
}

#[cfg(not(bootstrap))]
pub fn new<T: Generator<Yield = YieldType<I, A>, Return = R> + 'static>(
generator: T,
) -> (I, Self) {
Expand All @@ -55,19 +39,6 @@ impl<I, A, R> PinnedGenerator<I, A, R> {
(init, result)
}

#[cfg(bootstrap)]
pub unsafe fn access(&mut self, closure: *mut dyn FnMut()) {
BOX_REGION_ARG.with(|i| {
i.set(Action::Access(AccessAction(closure)));
});

// Call the generator, which in turn will call the closure in BOX_REGION_ARG
if let GeneratorState::Complete(_) = Pin::new(&mut self.generator).resume() {
panic!()
}
}

#[cfg(not(bootstrap))]
pub unsafe fn access(&mut self, closure: *mut dyn FnMut()) {
BOX_REGION_ARG.with(|i| {
i.set(Action::Access(AccessAction(closure)));
Expand All @@ -79,16 +50,6 @@ impl<I, A, R> PinnedGenerator<I, A, R> {
}
}

#[cfg(bootstrap)]
pub fn complete(&mut self) -> R {
// Tell the generator we want it to complete, consuming it and yielding a result
BOX_REGION_ARG.with(|i| i.set(Action::Complete));

let result = Pin::new(&mut self.generator).resume();
if let GeneratorState::Complete(r) = result { r } else { panic!() }
}

#[cfg(not(bootstrap))]
pub fn complete(&mut self) -> R {
// Tell the generator we want it to complete, consuming it and yielding a result
BOX_REGION_ARG.with(|i| i.set(Action::Complete));
Expand Down
5 changes: 1 addition & 4 deletions src/libstd/future.rs
Original file line number Diff line number Diff line change
Expand Up @@ -41,10 +41,7 @@ impl<T: Generator<Yield = ()>> Future for GenFuture<T> {
// Safe because we're !Unpin + !Drop mapping to a ?Unpin value
let gen = unsafe { Pin::map_unchecked_mut(self, |s| &mut s.0) };
let _guard = unsafe { set_task_context(cx) };
match gen.resume(
#[cfg(not(bootstrap))]
(),
) {
match gen.resume(()) {
GeneratorState::Yielded(()) => Poll::Pending,
GeneratorState::Complete(x) => Poll::Ready(x),
}
Expand Down
2 changes: 1 addition & 1 deletion src/stage0.txt
Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@
# source tarball for a stable release you'll likely see `1.x.0` for rustc and
# `0.x.0` for Cargo where they were released on `date`.

date: 2020-02-29
date: 2020-03-12
rustc: beta
cargo: beta

Expand Down

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