Rollup merge of #64529 - taiki-e:docs-pin-as-mut, r=RalfJung
Add an example to Pin::as_mut
https://github.com/taiki-e/pin-project/issues/89#issuecomment-531701172
r? @RalfJung
diff --git a/Cargo.lock b/Cargo.lock
index b717460..326f3b1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -201,9 +201,7 @@
name = "build-manifest"
version = "0.1.0"
dependencies = [
- "reqwest",
"serde",
- "serde_json",
"toml",
]
diff --git a/RELEASES.md b/RELEASES.md
index f26f6e6..d634feb 100644
--- a/RELEASES.md
+++ b/RELEASES.md
@@ -1,3 +1,108 @@
+Version 1.38.0 (2019-09-26)
+==========================
+
+Language
+--------
+- [The `#[global_allocator]` attribute can now be used in submodules.][62735]
+- [The `#[deprecated]` attribute can now be used on macros.][62042]
+
+Compiler
+--------
+- [Added pipelined compilation support to `rustc`.][62766] This will
+ improve compilation times in some cases. For further information please refer
+ to the [_"Evaluating pipelined rustc compilation"_][pipeline-internals] thread.
+- [Added tier 3\* support for the `aarch64-uwp-windows-msvc`, `i686-uwp-windows-gnu`,
+ `i686-uwp-windows-msvc`, `x86_64-uwp-windows-gnu`, and
+ `x86_64-uwp-windows-msvc` targets.][60260]
+- [Added tier 3 support for the `armv7-unknown-linux-gnueabi` and
+ `armv7-unknown-linux-musleabi` targets.][63107]
+- [Added tier 3 support for the `hexagon-unknown-linux-musl` target.][62814]
+- [Added tier 3 support for the `riscv32i-unknown-none-elf` target.][62784]
+
+\* Refer to Rust's [platform support page][forge-platform-support] for more
+information on Rust's tiered platform support.
+
+Libraries
+---------
+- [`ascii::EscapeDefault` now implements `Clone` and `Display`.][63421]
+- [Derive macros for prelude traits (e.g. `Clone`, `Debug`, `Hash`) are now
+ available at the same path as the trait.][63056] (e.g. The `Clone` derive macro
+ is available at `std::clone::Clone`). This also makes all built-in macros
+ available in `std`/`core` root. e.g. `std::include_bytes!`.
+- [`str::Chars` now implements `Debug`.][63000]
+- [`slice::{concat, connect, join}` now accepts `&[T]` in addition to `&T`.][62528]
+- [`*const T` and `*mut T` now implement `marker::Unpin`.][62583]
+- [`Arc<[T]>` and `Rc<[T]>` now implement `FromIterator<T>`.][61953]
+- [Added euclidean remainder and division operations (`div_euclid`,
+ `rem_euclid`) to all numeric primitives.][61884] Additionally `checked`,
+ `overflowing`, and `wrapping` versions are available for all
+ integer primitives.
+- [`thread::AccessError` now implements `Clone`, `Copy`, `Eq`, `Error`, and
+ `PartialEq`.][61491]
+- [`iter::{StepBy, Peekable, Take}` now implement `DoubleEndedIterator`.][61457]
+
+Stabilized APIs
+---------------
+- [`<*const T>::cast`]
+- [`<*mut T>::cast`]
+- [`Duration::as_secs_f32`]
+- [`Duration::as_secs_f64`]
+- [`Duration::div_duration_f32`]
+- [`Duration::div_duration_f64`]
+- [`Duration::div_f32`]
+- [`Duration::div_f64`]
+- [`Duration::from_secs_f32`]
+- [`Duration::from_secs_f64`]
+- [`Duration::mul_f32`]
+- [`Duration::mul_f64`]
+- [`any::type_name`]
+
+Cargo
+-----
+- [Added pipelined compilation support to `cargo`.][cargo/7143]
+- [You can now pass the `--features` option multiple times to enable
+ multiple features.][cargo/7084]
+
+Misc
+----
+- [`rustc` will now warn about some incorrect uses of
+ `mem::{uninitialized, zeroed}` that are known to cause undefined behaviour.][63346]
+
+[60260]: https://github.com/rust-lang/rust/pull/60260/
+[61457]: https://github.com/rust-lang/rust/pull/61457/
+[61491]: https://github.com/rust-lang/rust/pull/61491/
+[61884]: https://github.com/rust-lang/rust/pull/61884/
+[61953]: https://github.com/rust-lang/rust/pull/61953/
+[62042]: https://github.com/rust-lang/rust/pull/62042/
+[62528]: https://github.com/rust-lang/rust/pull/62528/
+[62583]: https://github.com/rust-lang/rust/pull/62583/
+[62735]: https://github.com/rust-lang/rust/pull/62735/
+[62766]: https://github.com/rust-lang/rust/pull/62766/
+[62784]: https://github.com/rust-lang/rust/pull/62784/
+[62814]: https://github.com/rust-lang/rust/pull/62814/
+[63000]: https://github.com/rust-lang/rust/pull/63000/
+[63056]: https://github.com/rust-lang/rust/pull/63056/
+[63107]: https://github.com/rust-lang/rust/pull/63107/
+[63346]: https://github.com/rust-lang/rust/pull/63346/
+[63421]: https://github.com/rust-lang/rust/pull/63421/
+[cargo/7084]: https://github.com/rust-lang/cargo/pull/7084/
+[cargo/7143]: https://github.com/rust-lang/cargo/pull/7143/
+[`<*const T>::cast`]: https://doc.rust-lang.org/std/primitive.pointer.html#method.cast
+[`<*mut T>::cast`]: https://doc.rust-lang.org/std/primitive.pointer.html#method.cast
+[`Duration::as_secs_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.as_secs_f32
+[`Duration::as_secs_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.as_secs_f64
+[`Duration::div_duration_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_duration_f32
+[`Duration::div_duration_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_duration_f64
+[`Duration::div_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_f32
+[`Duration::div_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.div_f64
+[`Duration::from_secs_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.from_secs_f32
+[`Duration::from_secs_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.from_secs_f64
+[`Duration::mul_f32`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.mul_f32
+[`Duration::mul_f64`]: https://doc.rust-lang.org/std/time/struct.Duration.html#method.mul_f64
+[`any::type_name`]: https://doc.rust-lang.org/std/any/fn.type_name.html
+[forge-platform-support]: https://forge.rust-lang.org/platform-support.html
+[pipeline-internals]: https://internals.rust-lang.org/t/evaluating-pipelined-rustc-compilation/10199
+
Version 1.37.0 (2019-08-15)
==========================
diff --git a/src/bootstrap/dist.rs b/src/bootstrap/dist.rs
index 076bcd8..500d576 100644
--- a/src/bootstrap/dist.rs
+++ b/src/bootstrap/dist.rs
@@ -2000,8 +2000,6 @@
}
fn run(self, builder: &Builder<'_>) {
- // This gets called by `promote-release`
- // (https://github.com/rust-lang/rust-central-station/tree/master/promote-release).
let mut cmd = builder.tool_cmd(Tool::BuildManifest);
if builder.config.dry_run {
return;
@@ -2012,14 +2010,10 @@
let addr = builder.config.dist_upload_addr.as_ref().unwrap_or_else(|| {
panic!("\n\nfailed to specify `dist.upload-addr` in `config.toml`\n\n")
});
- let pass = if env::var("BUILD_MANIFEST_DISABLE_SIGNING").is_err() {
- let file = builder.config.dist_gpg_password_file.as_ref().unwrap_or_else(|| {
- panic!("\n\nfailed to specify `dist.gpg-password-file` in `config.toml`\n\n")
- });
- t!(fs::read_to_string(&file))
- } else {
- String::new()
- };
+ let file = builder.config.dist_gpg_password_file.as_ref().unwrap_or_else(|| {
+ panic!("\n\nfailed to specify `dist.gpg-password-file` in `config.toml`\n\n")
+ });
+ let pass = t!(fs::read_to_string(&file));
let today = output(Command::new("date").arg("+%Y-%m-%d"));
diff --git a/src/ci/azure-pipelines/auto.yml b/src/ci/azure-pipelines/auto.yml
index 77c9cda..1656066 100644
--- a/src/ci/azure-pipelines/auto.yml
+++ b/src/ci/azure-pipelines/auto.yml
@@ -236,10 +236,16 @@
MSYS_BITS: 32
RUST_CONFIGURE_ARGS: --build=i686-pc-windows-msvc
SCRIPT: make ci-subset-1
+ # FIXME(#59637)
+ NO_DEBUG_ASSERTIONS: 1
+ NO_LLVM_ASSERTIONS: 1
i686-msvc-2:
MSYS_BITS: 32
RUST_CONFIGURE_ARGS: --build=i686-pc-windows-msvc
SCRIPT: make ci-subset-2
+ # FIXME(#59637)
+ NO_DEBUG_ASSERTIONS: 1
+ NO_LLVM_ASSERTIONS: 1
# MSVC aux tests
x86_64-msvc-aux:
MSYS_BITS: 64
@@ -250,6 +256,9 @@
SCRIPT: python x.py test src/tools/cargotest src/tools/cargo
RUST_CONFIGURE_ARGS: --build=x86_64-pc-windows-msvc
VCVARS_BAT: vcvars64.bat
+ # FIXME(#59637)
+ NO_DEBUG_ASSERTIONS: 1
+ NO_LLVM_ASSERTIONS: 1
# MSVC tools tests
x86_64-msvc-tools:
MSYS_BITS: 64
diff --git a/src/ci/docker/i686-gnu-nopt/Dockerfile b/src/ci/docker/i686-gnu-nopt/Dockerfile
index 2041ba5..517b59c 100644
--- a/src/ci/docker/i686-gnu-nopt/Dockerfile
+++ b/src/ci/docker/i686-gnu-nopt/Dockerfile
@@ -19,3 +19,6 @@
ENV RUST_CONFIGURE_ARGS --build=i686-unknown-linux-gnu --disable-optimize-tests
ENV SCRIPT python2.7 ../x.py test
+
+# FIXME(#59637) takes too long on CI right now
+ENV NO_LLVM_ASSERTIONS=1 NO_DEBUG_ASSERTIONS=1
diff --git a/src/ci/docker/i686-gnu/Dockerfile b/src/ci/docker/i686-gnu/Dockerfile
index 17441dd..03db3ba 100644
--- a/src/ci/docker/i686-gnu/Dockerfile
+++ b/src/ci/docker/i686-gnu/Dockerfile
@@ -25,3 +25,6 @@
--exclude src/test/rustdoc-js \
--exclude src/tools/error_index_generator \
--exclude src/tools/linkchecker
+
+# FIXME(#59637) takes too long on CI right now
+ENV NO_LLVM_ASSERTIONS=1 NO_DEBUG_ASSERTIONS=1
diff --git a/src/libcore/intrinsics.rs b/src/libcore/intrinsics.rs
index d145f22..ecff40a 100644
--- a/src/libcore/intrinsics.rs
+++ b/src/libcore/intrinsics.rs
@@ -845,21 +845,26 @@
///
/// ```
/// let store = [0, 1, 2, 3];
- /// let mut v_orig = store.iter().collect::<Vec<&i32>>();
+ /// let v_orig = store.iter().collect::<Vec<&i32>>();
+ ///
+ /// // clone the vector as we will reuse them later
+ /// let v_clone = v_orig.clone();
///
/// // Using transmute: this is Undefined Behavior, and a bad idea.
/// // However, it is no-copy.
/// let v_transmuted = unsafe {
- /// std::mem::transmute::<Vec<&i32>, Vec<Option<&i32>>>(
- /// v_orig.clone())
+ /// std::mem::transmute::<Vec<&i32>, Vec<Option<&i32>>>(v_clone)
/// };
///
+ /// let v_clone = v_orig.clone();
+ ///
/// // This is the suggested, safe way.
/// // It does copy the entire vector, though, into a new array.
- /// let v_collected = v_orig.clone()
- /// .into_iter()
- /// .map(|r| Some(r))
- /// .collect::<Vec<Option<&i32>>>();
+ /// let v_collected = v_clone.into_iter()
+ /// .map(Some)
+ /// .collect::<Vec<Option<&i32>>>();
+ ///
+ /// let v_clone = v_orig.clone();
///
/// // The no-copy, unsafe way, still using transmute, but not UB.
/// // This is equivalent to the original, but safer, and reuses the
@@ -869,11 +874,12 @@
/// // the original inner type (`&i32`) to the converted inner type
/// // (`Option<&i32>`), so read the nomicon pages linked above.
/// let v_from_raw = unsafe {
- /// Vec::from_raw_parts(v_orig.as_mut_ptr() as *mut Option<&i32>,
- /// v_orig.len(),
- /// v_orig.capacity())
+ /// // Ensure the original vector is not dropped.
+ /// let mut v_clone = std::mem::ManuallyDrop::new(v_clone);
+ /// Vec::from_raw_parts(v_clone.as_mut_ptr() as *mut Option<&i32>,
+ /// v_clone.len(),
+ /// v_clone.capacity())
/// };
- /// std::mem::forget(v_orig);
/// ```
///
/// Implementing `split_at_mut`:
diff --git a/src/librustc/infer/equate.rs b/src/librustc/infer/equate.rs
index 5dfa0d2..96d40bc 100644
--- a/src/librustc/infer/equate.rs
+++ b/src/librustc/infer/equate.rs
@@ -97,7 +97,7 @@
self.tag(),
a,
b);
- let origin = Subtype(self.fields.trace.clone());
+ let origin = Subtype(box self.fields.trace.clone());
self.fields.infcx.borrow_region_constraints()
.make_eqregion(origin, a, b);
Ok(a)
diff --git a/src/librustc/infer/error_reporting/nice_region_error/placeholder_error.rs b/src/librustc/infer/error_reporting/nice_region_error/placeholder_error.rs
index 19bd38b..bfa8353 100644
--- a/src/librustc/infer/error_reporting/nice_region_error/placeholder_error.rs
+++ b/src/librustc/infer/error_reporting/nice_region_error/placeholder_error.rs
@@ -30,7 +30,7 @@
Some(RegionResolutionError::SubSupConflict(
vid,
_,
- SubregionOrigin::Subtype(TypeTrace {
+ SubregionOrigin::Subtype(box TypeTrace {
cause,
values: ValuePairs::TraitRefs(ExpectedFound { expected, found }),
}),
@@ -50,7 +50,7 @@
Some(RegionResolutionError::SubSupConflict(
vid,
_,
- SubregionOrigin::Subtype(TypeTrace {
+ SubregionOrigin::Subtype(box TypeTrace {
cause,
values: ValuePairs::TraitRefs(ExpectedFound { expected, found }),
}),
@@ -70,7 +70,7 @@
Some(RegionResolutionError::SubSupConflict(
vid,
_,
- SubregionOrigin::Subtype(TypeTrace {
+ SubregionOrigin::Subtype(box TypeTrace {
cause,
values: ValuePairs::TraitRefs(ExpectedFound { expected, found }),
}),
@@ -92,7 +92,7 @@
_,
_,
_,
- SubregionOrigin::Subtype(TypeTrace {
+ SubregionOrigin::Subtype(box TypeTrace {
cause,
values: ValuePairs::TraitRefs(ExpectedFound { expected, found }),
}),
@@ -108,7 +108,7 @@
)),
Some(RegionResolutionError::ConcreteFailure(
- SubregionOrigin::Subtype(TypeTrace {
+ SubregionOrigin::Subtype(box TypeTrace {
cause,
values: ValuePairs::TraitRefs(ExpectedFound { expected, found }),
}),
@@ -125,7 +125,7 @@
)),
Some(RegionResolutionError::ConcreteFailure(
- SubregionOrigin::Subtype(TypeTrace {
+ SubregionOrigin::Subtype(box TypeTrace {
cause,
values: ValuePairs::TraitRefs(ExpectedFound { expected, found }),
}),
@@ -142,7 +142,7 @@
)),
Some(RegionResolutionError::ConcreteFailure(
- SubregionOrigin::Subtype(TypeTrace {
+ SubregionOrigin::Subtype(box TypeTrace {
cause,
values: ValuePairs::TraitRefs(ExpectedFound { expected, found }),
}),
diff --git a/src/librustc/infer/error_reporting/note.rs b/src/librustc/infer/error_reporting/note.rs
index caed428..115ffea 100644
--- a/src/librustc/infer/error_reporting/note.rs
+++ b/src/librustc/infer/error_reporting/note.rs
@@ -138,7 +138,7 @@
sup: Region<'tcx>)
-> DiagnosticBuilder<'tcx> {
match origin {
- infer::Subtype(trace) => {
+ infer::Subtype(box trace) => {
let terr = TypeError::RegionsDoesNotOutlive(sup, sub);
let mut err = self.report_and_explain_type_error(trace, &terr);
self.tcx.note_and_explain_region(region_scope_tree, &mut err, "", sup, "...");
@@ -450,7 +450,7 @@
) -> DiagnosticBuilder<'tcx> {
// I can't think how to do better than this right now. -nikomatsakis
match placeholder_origin {
- infer::Subtype(trace) => {
+ infer::Subtype(box trace) => {
let terr = TypeError::RegionsPlaceholderMismatch;
self.report_and_explain_type_error(trace, &terr)
}
diff --git a/src/librustc/infer/glb.rs b/src/librustc/infer/glb.rs
index 2cef521..10e4532 100644
--- a/src/librustc/infer/glb.rs
+++ b/src/librustc/infer/glb.rs
@@ -57,7 +57,7 @@
a,
b);
- let origin = Subtype(self.fields.trace.clone());
+ let origin = Subtype(box self.fields.trace.clone());
Ok(self.fields.infcx.borrow_region_constraints().glb_regions(self.tcx(), origin, a, b))
}
diff --git a/src/librustc/infer/lub.rs b/src/librustc/infer/lub.rs
index e20372f..8b64cda 100644
--- a/src/librustc/infer/lub.rs
+++ b/src/librustc/infer/lub.rs
@@ -57,7 +57,7 @@
a,
b);
- let origin = Subtype(self.fields.trace.clone());
+ let origin = Subtype(box self.fields.trace.clone());
Ok(self.fields.infcx.borrow_region_constraints().lub_regions(self.tcx(), origin, a, b))
}
diff --git a/src/librustc/infer/mod.rs b/src/librustc/infer/mod.rs
index 8638f42..a886c44 100644
--- a/src/librustc/infer/mod.rs
+++ b/src/librustc/infer/mod.rs
@@ -254,7 +254,7 @@
#[derive(Clone, Debug)]
pub enum SubregionOrigin<'tcx> {
/// Arose from a subtyping relation
- Subtype(TypeTrace<'tcx>),
+ Subtype(Box<TypeTrace<'tcx>>),
/// Stack-allocated closures cannot outlive innermost loop
/// or function so as to ensure we only require finite stack
@@ -340,6 +340,10 @@
},
}
+// `SubregionOrigin` is used a lot. Make sure it doesn't unintentionally get bigger.
+#[cfg(target_arch = "x86_64")]
+static_assert_size!(SubregionOrigin<'_>, 32);
+
/// Places that type/region parameters can appear.
#[derive(Clone, Copy, Debug)]
pub enum ParameterOrigin {
diff --git a/src/librustc/infer/sub.rs b/src/librustc/infer/sub.rs
index cd1d206..76db55e 100644
--- a/src/librustc/infer/sub.rs
+++ b/src/librustc/infer/sub.rs
@@ -130,7 +130,7 @@
// FIXME -- we have more fine-grained information available
// from the "cause" field, we could perhaps give more tailored
// error messages.
- let origin = SubregionOrigin::Subtype(self.fields.trace.clone());
+ let origin = SubregionOrigin::Subtype(box self.fields.trace.clone());
self.fields.infcx.borrow_region_constraints()
.make_subregion(origin, a, b);
diff --git a/src/librustc/mir/interpret/error.rs b/src/librustc/mir/interpret/error.rs
index 09c822f..67b3ce0 100644
--- a/src/librustc/mir/interpret/error.rs
+++ b/src/librustc/mir/interpret/error.rs
@@ -213,6 +213,15 @@
eprintln!("\n\nAn error occurred in miri:\n{:?}", backtrace);
}
+impl From<ErrorHandled> for InterpErrorInfo<'tcx> {
+ fn from(err: ErrorHandled) -> Self {
+ match err {
+ ErrorHandled::Reported => err_inval!(ReferencedConstant),
+ ErrorHandled::TooGeneric => err_inval!(TooGeneric),
+ }.into()
+ }
+}
+
impl<'tcx> From<InterpError<'tcx>> for InterpErrorInfo<'tcx> {
fn from(kind: InterpError<'tcx>) -> Self {
let backtrace = match env::var("RUSTC_CTFE_BACKTRACE") {
diff --git a/src/librustc/query/mod.rs b/src/librustc/query/mod.rs
index 4ebc2e7..c726094 100644
--- a/src/librustc/query/mod.rs
+++ b/src/librustc/query/mod.rs
@@ -462,15 +462,6 @@
no_force
desc { "extract field of const" }
}
-
- /// Produces an absolute path representation of the given type. See also the documentation
- /// on `std::any::type_name`.
- query type_name(key: Ty<'tcx>) -> &'tcx ty::Const<'tcx> {
- eval_always
- no_force
- desc { "get absolute path of type" }
- }
-
}
TypeChecking {
diff --git a/src/librustc_codegen_llvm/intrinsic.rs b/src/librustc_codegen_llvm/intrinsic.rs
index 5fbfe91..3f3c5ac1 100644
--- a/src/librustc_codegen_llvm/intrinsic.rs
+++ b/src/librustc_codegen_llvm/intrinsic.rs
@@ -15,6 +15,7 @@
use rustc_codegen_ssa::base::{to_immediate, wants_msvc_seh, compare_simd_types};
use rustc::ty::{self, Ty};
use rustc::ty::layout::{self, LayoutOf, HasTyCtxt, Primitive};
+use rustc::mir::interpret::GlobalId;
use rustc_codegen_ssa::common::{IntPredicate, TypeKind};
use rustc::hir;
use syntax::ast::{self, FloatTy};
@@ -81,13 +82,14 @@
impl IntrinsicCallMethods<'tcx> for Builder<'a, 'll, 'tcx> {
fn codegen_intrinsic_call(
&mut self,
- callee_ty: Ty<'tcx>,
+ instance: ty::Instance<'tcx>,
fn_ty: &FnType<'tcx, Ty<'tcx>>,
args: &[OperandRef<'tcx, &'ll Value>],
llresult: &'ll Value,
span: Span,
) {
let tcx = self.tcx;
+ let callee_ty = instance.ty(tcx);
let (def_id, substs) = match callee_ty.sty {
ty::FnDef(def_id, substs) => (def_id, substs),
@@ -133,10 +135,6 @@
let llfn = self.get_intrinsic(&("llvm.debugtrap"));
self.call(llfn, &[], None)
}
- "size_of" => {
- let tp_ty = substs.type_at(0);
- self.const_usize(self.size_of(tp_ty).bytes())
- }
"va_start" => {
self.va_start(args[0].immediate())
}
@@ -188,10 +186,6 @@
self.const_usize(self.size_of(tp_ty).bytes())
}
}
- "min_align_of" => {
- let tp_ty = substs.type_at(0);
- self.const_usize(self.align_of(tp_ty).bytes())
- }
"min_align_of_val" => {
let tp_ty = substs.type_at(0);
if let OperandValue::Pair(_, meta) = args[0].val {
@@ -201,18 +195,19 @@
self.const_usize(self.align_of(tp_ty).bytes())
}
}
- "pref_align_of" => {
- let tp_ty = substs.type_at(0);
- self.const_usize(self.layout_of(tp_ty).align.pref.bytes())
- }
+ "size_of" |
+ "pref_align_of" |
+ "min_align_of" |
+ "needs_drop" |
+ "type_id" |
"type_name" => {
- let tp_ty = substs.type_at(0);
- let ty_name = self.tcx.type_name(tp_ty);
+ let gid = GlobalId {
+ instance,
+ promoted: None,
+ };
+ let ty_name = self.tcx.const_eval(ty::ParamEnv::reveal_all().and(gid)).unwrap();
OperandRef::from_const(self, ty_name).immediate_or_packed_pair(self)
}
- "type_id" => {
- self.const_u64(self.tcx.type_id_hash(substs.type_at(0)))
- }
"init" => {
let ty = substs.type_at(0);
if !self.layout_of(ty).is_zst() {
@@ -235,11 +230,6 @@
"uninit" | "forget" => {
return;
}
- "needs_drop" => {
- let tp_ty = substs.type_at(0);
-
- self.const_bool(self.type_needs_drop(tp_ty))
- }
"offset" => {
let ptr = args[0].immediate();
let offset = args[1].immediate();
diff --git a/src/librustc_codegen_ssa/mir/block.rs b/src/librustc_codegen_ssa/mir/block.rs
index 8829a33..1bb0ea5 100644
--- a/src/librustc_codegen_ssa/mir/block.rs
+++ b/src/librustc_codegen_ssa/mir/block.rs
@@ -667,8 +667,7 @@
}).collect();
- let callee_ty = instance.as_ref().unwrap().ty(bx.tcx());
- bx.codegen_intrinsic_call(callee_ty, &fn_ty, &args, dest,
+ bx.codegen_intrinsic_call(*instance.as_ref().unwrap(), &fn_ty, &args, dest,
terminator.source_info.span);
if let ReturnDest::IndirectOperand(dst, _) = ret_dest {
diff --git a/src/librustc_codegen_ssa/traits/intrinsic.rs b/src/librustc_codegen_ssa/traits/intrinsic.rs
index ede30a0..7c79cd6 100644
--- a/src/librustc_codegen_ssa/traits/intrinsic.rs
+++ b/src/librustc_codegen_ssa/traits/intrinsic.rs
@@ -1,6 +1,6 @@
use super::BackendTypes;
use crate::mir::operand::OperandRef;
-use rustc::ty::Ty;
+use rustc::ty::{self, Ty};
use rustc_target::abi::call::FnType;
use syntax_pos::Span;
@@ -10,7 +10,7 @@
/// add them to librustc_codegen_llvm/context.rs
fn codegen_intrinsic_call(
&mut self,
- callee_ty: Ty<'tcx>,
+ instance: ty::Instance<'tcx>,
fn_ty: &FnType<'tcx, Ty<'tcx>>,
args: &[OperandRef<'tcx, Self::Value>],
llresult: Self::Value,
diff --git a/src/librustc_errors/emitter.rs b/src/librustc_errors/emitter.rs
index 6660836..d238de2 100644
--- a/src/librustc_errors/emitter.rs
+++ b/src/librustc_errors/emitter.rs
@@ -1144,15 +1144,18 @@
buffer.prepend(0, " ", Style::NoStyle);
}
draw_note_separator(&mut buffer, 0, max_line_num_len + 1);
- let level_str = level.to_string();
- if !level_str.is_empty() {
- buffer.append(0, &level_str, Style::MainHeaderMsg);
- buffer.append(0, ": ", Style::NoStyle);
+ if *level != Level::FailureNote {
+ let level_str = level.to_string();
+ if !level_str.is_empty() {
+ buffer.append(0, &level_str, Style::MainHeaderMsg);
+ buffer.append(0, ": ", Style::NoStyle);
+ }
}
self.msg_to_buffer(&mut buffer, msg, max_line_num_len, "note", None);
} else {
let level_str = level.to_string();
- if !level_str.is_empty() {
+ // The failure note level itself does not provide any useful diagnostic information
+ if *level != Level::FailureNote && !level_str.is_empty() {
buffer.append(0, &level_str, Style::Level(level.clone()));
}
// only render error codes, not lint codes
@@ -1161,7 +1164,7 @@
buffer.append(0, &code, Style::Level(level.clone()));
buffer.append(0, "]", Style::Level(level.clone()));
}
- if !level_str.is_empty() {
+ if *level != Level::FailureNote && !level_str.is_empty() {
buffer.append(0, ": ", header_style);
}
for &(ref text, _) in msg.iter() {
diff --git a/src/librustc_errors/lib.rs b/src/librustc_errors/lib.rs
index c1fba41..8b543be 100644
--- a/src/librustc_errors/lib.rs
+++ b/src/librustc_errors/lib.rs
@@ -833,7 +833,7 @@
Warning => "warning",
Note => "note",
Help => "help",
- FailureNote => "",
+ FailureNote => "failure-note",
Cancelled => panic!("Shouldn't call on cancelled error"),
}
}
diff --git a/src/librustc_mir/const_eval.rs b/src/librustc_mir/const_eval.rs
index 3f53f84..4351598 100644
--- a/src/librustc_mir/const_eval.rs
+++ b/src/librustc_mir/const_eval.rs
@@ -15,6 +15,7 @@
use rustc::ty::layout::{self, LayoutOf, VariantIdx};
use rustc::traits::Reveal;
use rustc_data_structures::fx::FxHashMap;
+use crate::interpret::eval_nullary_intrinsic;
use syntax::source_map::{Span, DUMMY_SP};
@@ -602,6 +603,23 @@
other => return other,
}
}
+
+ // We call `const_eval` for zero arg intrinsics, too, in order to cache their value.
+ // Catch such calls and evaluate them instead of trying to load a constant's MIR.
+ if let ty::InstanceDef::Intrinsic(def_id) = key.value.instance.def {
+ let ty = key.value.instance.ty(tcx);
+ let substs = match ty.sty {
+ ty::FnDef(_, substs) => substs,
+ _ => bug!("intrinsic with type {:?}", ty),
+ };
+ return eval_nullary_intrinsic(tcx, key.param_env, def_id, substs)
+ .map_err(|error| {
+ let span = tcx.def_span(def_id);
+ let error = ConstEvalErr { error: error.kind, stacktrace: vec![], span };
+ error.report_as_error(tcx.at(span), "could not evaluate nullary intrinsic")
+ })
+ }
+
tcx.const_eval_raw(key).and_then(|val| {
validate_and_turn_into_const(tcx, val, key)
})
diff --git a/src/librustc_mir/interpret/eval_context.rs b/src/librustc_mir/interpret/eval_context.rs
index 054b65f..78996ed 100644
--- a/src/librustc_mir/interpret/eval_context.rs
+++ b/src/librustc_mir/interpret/eval_context.rs
@@ -14,7 +14,6 @@
use rustc::ty::query::TyCtxtAt;
use rustc_data_structures::indexed_vec::IndexVec;
use rustc::mir::interpret::{
- ErrorHandled,
GlobalId, Scalar, Pointer, FrameInfo, AllocId,
InterpResult, truncate, sign_extend,
};
@@ -672,14 +671,7 @@
// Our result will later be validated anyway, and there seems no good reason
// to have to fail early here. This is also more consistent with
// `Memory::get_static_alloc` which has to use `const_eval_raw` to avoid cycles.
- let val = self.tcx.const_eval_raw(param_env.and(gid)).map_err(|err| {
- match err {
- ErrorHandled::Reported =>
- err_inval!(ReferencedConstant),
- ErrorHandled::TooGeneric =>
- err_inval!(TooGeneric),
- }
- })?;
+ let val = self.tcx.const_eval_raw(param_env.and(gid))?;
self.raw_const_to_mplace(val)
}
diff --git a/src/librustc_mir/interpret/intrinsics.rs b/src/librustc_mir/interpret/intrinsics.rs
index 0f2305e..ec09e69 100644
--- a/src/librustc_mir/interpret/intrinsics.rs
+++ b/src/librustc_mir/interpret/intrinsics.rs
@@ -5,17 +5,18 @@
use syntax::symbol::Symbol;
use rustc::ty;
use rustc::ty::layout::{LayoutOf, Primitive, Size};
+use rustc::ty::subst::SubstsRef;
+use rustc::hir::def_id::DefId;
+use rustc::ty::TyCtxt;
use rustc::mir::BinOp;
-use rustc::mir::interpret::{InterpResult, Scalar};
+use rustc::mir::interpret::{InterpResult, Scalar, GlobalId, ConstValue};
use super::{
- Machine, PlaceTy, OpTy, InterpCx, Immediate,
+ Machine, PlaceTy, OpTy, InterpCx,
};
mod type_name;
-pub use type_name::*;
-
fn numeric_intrinsic<'tcx, Tag>(
name: &str,
bits: u128,
@@ -37,6 +38,50 @@
Ok(Scalar::from_uint(bits_out, size))
}
+/// The logic for all nullary intrinsics is implemented here. These intrinsics don't get evaluated
+/// inside an `InterpCx` and instead have their value computed directly from rustc internal info.
+crate fn eval_nullary_intrinsic<'tcx>(
+ tcx: TyCtxt<'tcx>,
+ param_env: ty::ParamEnv<'tcx>,
+ def_id: DefId,
+ substs: SubstsRef<'tcx>,
+) -> InterpResult<'tcx, &'tcx ty::Const<'tcx>> {
+ let tp_ty = substs.type_at(0);
+ let name = &*tcx.item_name(def_id).as_str();
+ Ok(match name {
+ "type_name" => {
+ let alloc = type_name::alloc_type_name(tcx, tp_ty);
+ tcx.mk_const(ty::Const {
+ val: ConstValue::Slice {
+ data: alloc,
+ start: 0,
+ end: alloc.len(),
+ },
+ ty: tcx.mk_static_str(),
+ })
+ },
+ "needs_drop" => ty::Const::from_bool(tcx, tp_ty.needs_drop(tcx, param_env)),
+ "size_of" |
+ "min_align_of" |
+ "pref_align_of" => {
+ let layout = tcx.layout_of(param_env.and(tp_ty)).map_err(|e| err_inval!(Layout(e)))?;
+ let n = match name {
+ "pref_align_of" => layout.align.pref.bytes(),
+ "min_align_of" => layout.align.abi.bytes(),
+ "size_of" => layout.size.bytes(),
+ _ => bug!(),
+ };
+ ty::Const::from_usize(tcx, n)
+ },
+ "type_id" => ty::Const::from_bits(
+ tcx,
+ tcx.type_id_hash(tp_ty).into(),
+ param_env.and(tcx.types.u64),
+ ),
+ other => bug!("`{}` is not a zero arg intrinsic", other),
+ })
+}
+
impl<'mir, 'tcx, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
/// Returns `true` if emulation happened.
pub fn emulate_intrinsic(
@@ -49,41 +94,19 @@
let intrinsic_name = &self.tcx.item_name(instance.def_id()).as_str()[..];
match intrinsic_name {
- "min_align_of" => {
- let elem_ty = substs.type_at(0);
- let elem_align = self.layout_of(elem_ty)?.align.abi.bytes();
- let align_val = Scalar::from_uint(elem_align, dest.layout.size);
- self.write_scalar(align_val, dest)?;
- }
-
- "needs_drop" => {
- let ty = substs.type_at(0);
- let ty_needs_drop = ty.needs_drop(self.tcx.tcx, self.param_env);
- let val = Scalar::from_bool(ty_needs_drop);
- self.write_scalar(val, dest)?;
- }
-
- "size_of" => {
- let ty = substs.type_at(0);
- let size = self.layout_of(ty)?.size.bytes() as u128;
- let size_val = Scalar::from_uint(size, dest.layout.size);
- self.write_scalar(size_val, dest)?;
- }
-
- "type_id" => {
- let ty = substs.type_at(0);
- let type_id = self.tcx.type_id_hash(ty) as u128;
- let id_val = Scalar::from_uint(type_id, dest.layout.size);
- self.write_scalar(id_val, dest)?;
- }
-
+ "min_align_of" |
+ "pref_align_of" |
+ "needs_drop" |
+ "size_of" |
+ "type_id" |
"type_name" => {
- let alloc = alloc_type_name(self.tcx.tcx, substs.type_at(0));
- let name_id = self.tcx.alloc_map.lock().create_memory_alloc(alloc);
- let id_ptr = self.memory.tag_static_base_pointer(name_id.into());
- let alloc_len = alloc.size.bytes();
- let name_val = Immediate::new_slice(Scalar::Ptr(id_ptr), alloc_len, self);
- self.write_immediate(name_val, dest)?;
+ let gid = GlobalId {
+ instance,
+ promoted: None,
+ };
+ let val = self.tcx.const_eval(self.param_env.and(gid))?;
+ let val = self.eval_const_to_op(val, None)?;
+ self.copy_op(val, dest)?;
}
| "ctpop"
diff --git a/src/librustc_mir/interpret/intrinsics/type_name.rs b/src/librustc_mir/interpret/intrinsics/type_name.rs
index 032d16a..1e765a4 100644
--- a/src/librustc_mir/interpret/intrinsics/type_name.rs
+++ b/src/librustc_mir/interpret/intrinsics/type_name.rs
@@ -7,7 +7,7 @@
use rustc::hir::map::{DefPathData, DisambiguatedDefPathData};
use rustc::hir::def_id::CrateNum;
use std::fmt::Write;
-use rustc::mir::interpret::{Allocation, ConstValue};
+use rustc::mir::interpret::Allocation;
struct AbsolutePathPrinter<'tcx> {
tcx: TyCtxt<'tcx>,
@@ -213,22 +213,11 @@
}
}
-/// Produces an absolute path representation of the given type. See also the documentation on
-/// `std::any::type_name`
-pub fn type_name<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> &'tcx ty::Const<'tcx> {
- let alloc = alloc_type_name(tcx, ty);
- tcx.mk_const(ty::Const {
- val: ConstValue::Slice {
- data: alloc,
- start: 0,
- end: alloc.len(),
- },
- ty: tcx.mk_static_str(),
- })
-}
-
/// Directly returns an `Allocation` containing an absolute path representation of the given type.
-pub(super) fn alloc_type_name<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> &'tcx Allocation {
+crate fn alloc_type_name<'tcx>(
+ tcx: TyCtxt<'tcx>,
+ ty: Ty<'tcx>
+) -> &'tcx Allocation {
let path = AbsolutePathPrinter { tcx, path: String::new() }.print_type(ty).unwrap().path;
let alloc = Allocation::from_byte_aligned_bytes(path.into_bytes());
tcx.intern_const_alloc(alloc)
diff --git a/src/librustc_mir/interpret/mod.rs b/src/librustc_mir/interpret/mod.rs
index 45d2434..0c61be2 100644
--- a/src/librustc_mir/interpret/mod.rs
+++ b/src/librustc_mir/interpret/mod.rs
@@ -34,6 +34,6 @@
pub use self::validity::RefTracking;
-pub(super) use self::intrinsics::type_name;
-
pub use self::intern::intern_const_alloc_recursive;
+
+crate use self::intrinsics::eval_nullary_intrinsic;
diff --git a/src/librustc_mir/lib.rs b/src/librustc_mir/lib.rs
index f27db35..034ad5b 100644
--- a/src/librustc_mir/lib.rs
+++ b/src/librustc_mir/lib.rs
@@ -59,5 +59,4 @@
let (param_env, (value, field)) = param_env_and_value.into_parts();
const_eval::const_field(tcx, param_env, None, field, value)
};
- providers.type_name = interpret::type_name;
}
diff --git a/src/libstd/io/mod.rs b/src/libstd/io/mod.rs
index 0386dbd..be364a1 100644
--- a/src/libstd/io/mod.rs
+++ b/src/libstd/io/mod.rs
@@ -2326,10 +2326,10 @@
/// An iterator over the contents of an instance of `BufRead` split on a
/// particular byte.
///
-/// This struct is generally created by calling [`split`][split] on a
-/// `BufRead`. Please see the documentation of `split()` for more details.
+/// This struct is generally created by calling [`split`] on a `BufRead`.
+/// Please see the documentation of [`split`] for more details.
///
-/// [split]: trait.BufRead.html#method.split
+/// [`split`]: trait.BufRead.html#method.split
#[stable(feature = "rust1", since = "1.0.0")]
#[derive(Debug)]
pub struct Split<B> {
@@ -2358,10 +2358,10 @@
/// An iterator over the lines of an instance of `BufRead`.
///
-/// This struct is generally created by calling [`lines`][lines] on a
-/// `BufRead`. Please see the documentation of `lines()` for more details.
+/// This struct is generally created by calling [`lines`] on a `BufRead`.
+/// Please see the documentation of [`lines`] for more details.
///
-/// [lines]: trait.BufRead.html#method.lines
+/// [`lines`]: trait.BufRead.html#method.lines
#[stable(feature = "rust1", since = "1.0.0")]
#[derive(Debug)]
pub struct Lines<B> {
diff --git a/src/test/ui/issues/issue-44415.rs b/src/test/compile-fail/issue-44415.rs
similarity index 100%
rename from src/test/ui/issues/issue-44415.rs
rename to src/test/compile-fail/issue-44415.rs
diff --git a/src/test/ui/consts/const-size_of-cycle.stderr b/src/test/ui/consts/const-size_of-cycle.stderr
index fdba359..1ae39e7 100644
--- a/src/test/ui/consts/const-size_of-cycle.stderr
+++ b/src/test/ui/consts/const-size_of-cycle.stderr
@@ -14,6 +14,11 @@
|
LL | intrinsics::size_of::<T>()
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: ...which requires const-evaluating + checking `std::intrinsics::size_of`...
+ --> $SRC_DIR/libcore/intrinsics.rs:LL:COL
+ |
+LL | pub fn size_of<T>() -> usize;
+ | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: ...which requires computing layout of `Foo`...
= note: ...which requires normalizing `ParamEnvAnd { param_env: ParamEnv { caller_bounds: [], reveal: All, def_id: None }, value: [u8; _] }`...
= note: ...which again requires const-evaluating + checking `Foo::bytes::{{constant}}#0`, completing the cycle
diff --git a/src/test/ui/issues/issue-44415.stderr b/src/test/ui/issues/issue-44415.stderr
deleted file mode 100644
index 8008e53..0000000
--- a/src/test/ui/issues/issue-44415.stderr
+++ /dev/null
@@ -1,28 +0,0 @@
-error[E0391]: cycle detected when const-evaluating + checking `Foo::bytes::{{constant}}#0`
- --> $DIR/issue-44415.rs:6:17
- |
-LL | bytes: [u8; unsafe { intrinsics::size_of::<Foo>() }],
- | ^^^^^^
- |
-note: ...which requires const-evaluating + checking `Foo::bytes::{{constant}}#0`...
- --> $DIR/issue-44415.rs:6:17
- |
-LL | bytes: [u8; unsafe { intrinsics::size_of::<Foo>() }],
- | ^^^^^^
-note: ...which requires const-evaluating `Foo::bytes::{{constant}}#0`...
- --> $DIR/issue-44415.rs:6:26
- |
-LL | bytes: [u8; unsafe { intrinsics::size_of::<Foo>() }],
- | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- = note: ...which requires computing layout of `Foo`...
- = note: ...which requires normalizing `ParamEnvAnd { param_env: ParamEnv { caller_bounds: [], reveal: All, def_id: None }, value: [u8; _] }`...
- = note: ...which again requires const-evaluating + checking `Foo::bytes::{{constant}}#0`, completing the cycle
-note: cycle used when processing `Foo`
- --> $DIR/issue-44415.rs:5:1
- |
-LL | struct Foo {
- | ^^^^^^^^^^
-
-error: aborting due to previous error
-
-For more information about this error, try `rustc --explain E0391`.
diff --git a/src/test/ui/json-short.stderr b/src/test/ui/json-short.stderr
index 86cb2f0..0a1fb56 100644
--- a/src/test/ui/json-short.stderr
+++ b/src/test/ui/json-short.stderr
@@ -15,5 +15,5 @@
"}
{"message":"aborting due to previous error","code":null,"level":"error","spans":[],"children":[],"rendered":"error: aborting due to previous error
"}
-{"message":"For more information about this error, try `rustc --explain E0601`.","code":null,"level":"","spans":[],"children":[],"rendered":"For more information about this error, try `rustc --explain E0601`.
+{"message":"For more information about this error, try `rustc --explain E0601`.","code":null,"level":"failure-note","spans":[],"children":[],"rendered":"For more information about this error, try `rustc --explain E0601`.
"}
diff --git a/src/test/ui/lint/use_suggestion_json.stderr b/src/test/ui/lint/use_suggestion_json.stderr
index c7c53ab..678c888 100644
--- a/src/test/ui/lint/use_suggestion_json.stderr
+++ b/src/test/ui/lint/use_suggestion_json.stderr
@@ -412,7 +412,7 @@
{
"message": "For more information about this error, try `rustc --explain E0412`.",
"code": null,
- "level": "",
+ "level": "failure-note",
"spans": [],
"children": [],
"rendered": "\u001b[0m\u001b[1mFor more information about this error, try `rustc --explain E0412`.\u001b[0m
diff --git a/src/tools/build-manifest/Cargo.toml b/src/tools/build-manifest/Cargo.toml
index 63ae445..c364479 100644
--- a/src/tools/build-manifest/Cargo.toml
+++ b/src/tools/build-manifest/Cargo.toml
@@ -7,5 +7,3 @@
[dependencies]
toml = "0.5"
serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0"
-reqwest = "0.9"
diff --git a/src/tools/build-manifest/src/main.rs b/src/tools/build-manifest/src/main.rs
index c2d642b..9ffa939 100644
--- a/src/tools/build-manifest/src/main.rs
+++ b/src/tools/build-manifest/src/main.rs
@@ -1,19 +1,12 @@
-//! Build a dist manifest, hash and sign everything.
-//! This gets called by `promote-release`
-//! (https://github.com/rust-lang/rust-central-station/tree/master/promote-release)
-//! via `x.py dist hash-and-sign`; the cmdline arguments are set up
-//! by rustbuild (in `src/bootstrap/dist.rs`).
-
use toml;
use serde::Serialize;
use std::collections::BTreeMap;
use std::env;
use std::fs;
-use std::io::{self, Read, Write, BufRead, BufReader};
+use std::io::{self, Read, Write};
use std::path::{PathBuf, Path};
use std::process::{Command, Stdio};
-use std::collections::HashMap;
static HOSTS: &[&str] = &[
"aarch64-unknown-linux-gnu",
@@ -153,9 +146,6 @@
"x86_64-pc-windows-gnu",
];
-static TOOLSTATE: &str =
- "https://raw.githubusercontent.com/rust-lang-nursery/rust-toolstate/master/history/linux.tsv";
-
#[derive(Serialize)]
#[serde(rename_all = "kebab-case")]
struct Manifest {
@@ -280,7 +270,6 @@
// Do not ask for a passphrase while manually testing
let mut passphrase = String::new();
if should_sign {
- // `x.py` passes the passphrase via stdin.
t!(io::stdin().read_to_string(&mut passphrase));
}
@@ -364,7 +353,6 @@
self.lldb_git_commit_hash = self.git_commit_hash("lldb", "x86_64-unknown-linux-gnu");
self.miri_git_commit_hash = self.git_commit_hash("miri", "x86_64-unknown-linux-gnu");
- self.check_toolstate();
self.digest_and_sign();
let manifest = self.build_manifest();
self.write_channel_files(&self.rust_release, &manifest);
@@ -374,37 +362,6 @@
}
}
- /// If a tool does not pass its tests, don't ship it.
- /// Right now, we do this only for Miri.
- fn check_toolstate(&mut self) {
- // Get the toolstate for this rust revision.
- let rev = self.rust_git_commit_hash.as_ref().expect("failed to determine rust git hash");
- let toolstates = reqwest::get(TOOLSTATE).expect("failed to get toolstates");
- let toolstates = BufReader::new(toolstates);
- let toolstate = toolstates.lines()
- .find_map(|line| {
- let line = line.expect("failed to read toolstate lines");
- let mut pieces = line.splitn(2, '\t');
- let commit = pieces.next().expect("malformed toolstate line");
- if commit != rev {
- // Not the right commit.
- return None;
- }
- // Return the 2nd piece, the JSON.
- Some(pieces.next().expect("malformed toolstate line").to_owned())
- })
- .expect("failed to find toolstate for rust commit");
- let toolstate: HashMap<String, String> =
- serde_json::from_str(&toolstate).expect("toolstate is malformed JSON");
- // Mark some tools as missing based on toolstate.
- if toolstate.get("miri").map(|s| &*s as &str) != Some("test-pass") {
- println!("Miri tests are not passing, removing component");
- self.miri_version = None;
- self.miri_git_commit_hash = None;
- }
- }
-
- /// Hash all files, compute their signatures, and collect the hashes in `self.digests`.
fn digest_and_sign(&mut self) {
for file in t!(self.input.read_dir()).map(|e| t!(e).path()) {
let filename = file.file_name().unwrap().to_str().unwrap();
@@ -575,20 +532,19 @@
.as_ref()
.cloned()
.map(|version| (version, true))
- .unwrap_or_default(); // `is_present` defaults to `false` here.
+ .unwrap_or_default();
- // Miri is nightly-only; never ship it for other trains.
+ // miri needs to build std with xargo, which doesn't allow stable/beta:
+ // <https://github.com/japaric/xargo/pull/204#issuecomment-374888868>
if pkgname == "miri-preview" && self.rust_release != "nightly" {
- is_present = false; // Pretend the component is entirely missing.
+ is_present = false; // ignore it
}
let targets = targets.iter().map(|name| {
if is_present {
- // The component generally exists, but it might still be missing for this target.
let filename = self.filename(pkgname, name);
let digest = match self.digests.remove(&filename) {
Some(digest) => digest,
- // This component does not exist for this target -- skip it.
None => return (name.to_string(), Target::unavailable()),
};
let xz_filename = filename.replace(".tar.gz", ".tar.xz");
diff --git a/src/tools/publish_toolstate.py b/src/tools/publish_toolstate.py
index 4060b90..7cf3cc7 100755
--- a/src/tools/publish_toolstate.py
+++ b/src/tools/publish_toolstate.py
@@ -201,7 +201,9 @@
new = s.get(tool, old)
status[os] = new
maintainers = ' '.join('@'+name for name in MAINTAINERS[tool])
- if new > old: # comparing the strings, but they are ordered appropriately!
+ # comparing the strings, but they are ordered appropriately:
+ # "test-pass" > "test-fail" > "build-fail"
+ if new > old:
# things got fixed or at least the status quo improved
changed = True
message += '🎉 {} on {}: {} → {} (cc {}, @rust-lang/infra).\n' \
@@ -213,10 +215,17 @@
.format(tool, os, old, new)
message += '{} (cc {}, @rust-lang/infra).\n' \
.format(title, maintainers)
- # Most tools only create issues for build failures.
- # Other failures can be spurious.
- if new == 'build-fail' or (tool == 'miri' and new == 'test-fail'):
- create_issue_for_status = new
+ # See if we need to create an issue.
+ if tool == 'miri':
+ # Create issue if tests used to pass before. Don't open a *second*
+ # issue when we regress from "test-fail" to "build-fail".
+ if old == 'test-pass':
+ create_issue_for_status = new
+ else:
+ # Create issue if things no longer build.
+ # (No issue for mere test failures to avoid spurious issues.)
+ if new == 'build-fail':
+ create_issue_for_status = new
if create_issue_for_status is not None:
try:
