Auto merge of #83905 - JohnTitor:rollup-pa1la80, r=JohnTitor

Rollup of 8 pull requests

Successful merges:

 - #83370 (Add `x.py setup tools` which enables `download-rustc` by default)
 - #83489 (Properly suggest deref in else block)
 - #83734 (Catch a bad placeholder type error for statics in `extern`s)
 - #83814 (expand: Do not ICE when a legacy AST-based macro attribute produces and empty expression)
 - #83835 (rustdoc: sort search index items for compression)
 - #83849 (rustdoc: Cleanup handling of associated items for intra-doc links)
 - #83881 (⬆️ rust-analyzer)
 - #83885 (Document compiler/ with -Aprivate-intra-doc-links)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
This commit is contained in:
bors 2021-04-05 23:40:18 +00:00
commit 8e6b478a5a
25 changed files with 367 additions and 192 deletions

View file

@ -45,9 +45,6 @@ macro_rules! forward {
pub fn $n:ident(&self, $($name:ident: $ty:ty),* $(,)?) -> &Self
) => {
$(#[$attrs])*
// we always document with --document-private-items
#[cfg_attr(not(bootstrap), allow(rustdoc::private_intra_doc_links))]
#[cfg_attr(bootstrap, allow(private_intra_doc_links))]
#[doc = concat!("See [`Diagnostic::", stringify!($n), "()`].")]
pub fn $n(&self, $($name: $ty),*) -> &Self {
self.diagnostic.$n($($name),*);
@ -62,9 +59,6 @@ macro_rules! forward {
) => {
$(#[$attrs])*
#[doc = concat!("See [`Diagnostic::", stringify!($n), "()`].")]
// we always document with --document-private-items
#[cfg_attr(not(bootstrap), allow(rustdoc::private_intra_doc_links))]
#[cfg_attr(bootstrap, allow(private_intra_doc_links))]
pub fn $n(&mut self, $($name: $ty),*) -> &mut Self {
self.0.diagnostic.$n($($name),*);
self
@ -82,9 +76,6 @@ macro_rules! forward {
) => {
$(#[$attrs])*
#[doc = concat!("See [`Diagnostic::", stringify!($n), "()`].")]
// we always document with --document-private-items
#[cfg_attr(not(bootstrap), allow(rustdoc::private_intra_doc_links))]
#[cfg_attr(bootstrap, allow(private_intra_doc_links))]
pub fn $n<$($generic: $bound),*>(&mut self, $($name: $ty),*) -> &mut Self {
self.0.diagnostic.$n($($name),*);
self

View file

@ -735,7 +735,14 @@ impl<'a, 'b> MacroExpander<'a, 'b> {
});
}
};
fragment_kind.expect_from_annotatables(items)
if fragment_kind == AstFragmentKind::Expr && items.is_empty() {
let msg =
"removing an expression is not supported in this position";
self.cx.span_err(span, msg);
fragment_kind.dummy(span)
} else {
fragment_kind.expect_from_annotatables(items)
}
}
Err(mut err) => {
err.emit();

View file

@ -18,6 +18,7 @@
#![feature(nll)]
#![cfg_attr(bootstrap, feature(or_patterns))]
#![recursion_limit = "256"]
#![allow(rustdoc::private_intra_doc_links)]
pub use rustc_hir::def::{Namespace, PerNS};

View file

@ -366,6 +366,29 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
false
}
/// If the given `HirId` corresponds to a block with a trailing expression, return that expression
crate fn maybe_get_block_expr(&self, hir_id: hir::HirId) -> Option<&'tcx hir::Expr<'tcx>> {
match self.tcx.hir().find(hir_id)? {
Node::Expr(hir::Expr { kind: hir::ExprKind::Block(block, ..), .. }) => block.expr,
_ => None,
}
}
/// Returns whether the given expression is an `else if`.
crate fn is_else_if_block(&self, expr: &hir::Expr<'_>) -> bool {
if let hir::ExprKind::If(..) = expr.kind {
let parent_id = self.tcx.hir().get_parent_node(expr.hir_id);
if let Some(Node::Expr(hir::Expr {
kind: hir::ExprKind::If(_, _, Some(else_expr)),
..
})) = self.tcx.hir().find(parent_id)
{
return else_expr.hir_id == expr.hir_id;
}
}
false
}
/// This function is used to determine potential "simple" improvements or users' errors and
/// provide them useful help. For example:
///
@ -652,6 +675,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
};
let suggestion = if is_struct_pat_shorthand_field {
format!("{}: *{}", code, code)
} else if self.is_else_if_block(expr) {
// Don't suggest nonsense like `else *if`
return None;
} else if let Some(expr) = self.maybe_get_block_expr(expr.hir_id) {
format!("*{}", sm.span_to_snippet(expr.span).unwrap_or(code))
} else {
format!("*{}", code)
};

View file

@ -734,8 +734,14 @@ fn convert_item(tcx: TyCtxt<'_>, item_id: hir::ItemId) {
tcx.ensure().generics_of(item.def_id);
tcx.ensure().type_of(item.def_id);
tcx.ensure().predicates_of(item.def_id);
if let hir::ForeignItemKind::Fn(..) = item.kind {
tcx.ensure().fn_sig(item.def_id);
match item.kind {
hir::ForeignItemKind::Fn(..) => tcx.ensure().fn_sig(item.def_id),
hir::ForeignItemKind::Static(..) => {
let mut visitor = PlaceholderHirTyCollector::default();
visitor.visit_foreign_item(item);
placeholder_type_error(tcx, None, &[], visitor.0, false, None);
}
_ => (),
}
}
}

View file

@ -8,6 +8,5 @@ debug-logging = true
incremental = true
[llvm]
# Will download LLVM from CI if available on your platform (Linux only for now)
# https://github.com/rust-lang/rust/issues/77084 tracks support for more platforms
# Will download LLVM from CI if available on your platform.
download-ci-llvm = "if-available"

View file

@ -0,0 +1,16 @@
# These defaults are meant for contributors to tools which build on the
# compiler, but do not modify it directly.
[rust]
# This enables `RUSTC_LOG=debug`, avoiding confusing situations
# where adding `debug!()` appears to do nothing.
# However, it makes running the compiler slightly slower.
debug-logging = true
# This greatly increases the speed of rebuilds, especially when there are only minor changes. However, it makes the initial build slightly slower.
incremental = true
# Download rustc from CI instead of building it from source.
# This cuts compile times by almost 60x, but means you can't modify the compiler.
download-rustc = "if-unchanged"
[llvm]
# Will download LLVM from CI if available on your platform.
download-ci-llvm = "if-available"

View file

@ -549,6 +549,8 @@ impl Step for Rustc {
// Build cargo command.
let mut cargo = builder.cargo(compiler, Mode::Rustc, SourceType::InTree, target, "doc");
cargo.rustdocflag("--document-private-items");
// Since we always pass --document-private-items, there's no need to warn about linking to private items.
cargo.rustdocflag("-Arustdoc::private-intra-doc-links");
cargo.rustdocflag("--enable-index-page");
cargo.rustdocflag("-Zunstable-options");
cargo.rustdocflag("-Znormalize-docs");

View file

@ -13,6 +13,7 @@ pub enum Profile {
Compiler,
Codegen,
Library,
Tools,
User,
}
@ -24,15 +25,16 @@ impl Profile {
pub fn all() -> impl Iterator<Item = Self> {
use Profile::*;
// N.B. these are ordered by how they are displayed, not alphabetically
[Library, Compiler, Codegen, User].iter().copied()
[Library, Compiler, Codegen, Tools, User].iter().copied()
}
pub fn purpose(&self) -> String {
use Profile::*;
match self {
Library => "Contribute to the standard library",
Compiler => "Contribute to the compiler or rustdoc",
Compiler => "Contribute to the compiler itself",
Codegen => "Contribute to the compiler, and also modify LLVM or codegen",
Tools => "Contribute to tools which depend on the compiler, but do not modify it directly (e.g. rustdoc, clippy, miri)",
User => "Install Rust from source",
}
.to_string()
@ -53,9 +55,12 @@ impl FromStr for Profile {
fn from_str(s: &str) -> Result<Self, Self::Err> {
match s {
"lib" | "library" => Ok(Profile::Library),
"compiler" | "rustdoc" => Ok(Profile::Compiler),
"compiler" => Ok(Profile::Compiler),
"llvm" | "codegen" => Ok(Profile::Codegen),
"maintainer" | "user" => Ok(Profile::User),
"tools" | "tool" | "rustdoc" | "clippy" | "miri" | "rustfmt" | "rls" => {
Ok(Profile::Tools)
}
_ => Err(format!("unknown profile: '{}'", s)),
}
}
@ -68,6 +73,7 @@ impl fmt::Display for Profile {
Profile::Codegen => write!(f, "codegen"),
Profile::Library => write!(f, "library"),
Profile::User => write!(f, "user"),
Profile::Tools => write!(f, "tools"),
}
}
}
@ -103,6 +109,14 @@ pub fn setup(src_path: &Path, profile: Profile) {
let suggestions = match profile {
Profile::Codegen | Profile::Compiler => &["check", "build", "test"][..],
Profile::Tools => &[
"check",
"build",
"test src/test/rustdoc*",
"test src/tools/clippy",
"test src/tools/miri",
"test src/tools/rustfmt",
],
Profile::Library => &["check", "build", "test library/std", "doc"],
Profile::User => &["dist", "build"],
};

View file

@ -914,7 +914,7 @@ impl Attributes {
.collect()
}
crate fn get_doc_aliases(&self) -> FxHashSet<String> {
crate fn get_doc_aliases(&self) -> Box<[String]> {
let mut aliases = FxHashSet::default();
for attr in self.other_attrs.lists(sym::doc).filter(|a| a.has_name(sym::alias)) {
@ -931,7 +931,7 @@ impl Attributes {
aliases.insert(attr.value_str().map(|s| s.to_string()).unwrap());
}
}
aliases
aliases.into_iter().collect::<Vec<String>>().into()
}
}

View file

@ -120,10 +120,6 @@ crate struct Cache {
// when gathering trait documentation on a type, hold impls here while
// folding and add them to the cache later on if we find the trait.
orphan_trait_impls: Vec<(DefId, FxHashSet<DefId>, Impl)>,
/// Aliases added through `#[doc(alias = "...")]`. Since a few items can have the same alias,
/// we need the alias element to have an array of items.
crate aliases: BTreeMap<String, Vec<usize>>,
}
/// This struct is used to wrap the `cache` and `tcx` in order to run `DocFolder`.
@ -309,15 +305,8 @@ impl<'a, 'tcx> DocFolder for CacheBuilder<'a, 'tcx> {
parent,
parent_idx: None,
search_type: get_index_search_type(&item, &self.empty_cache, self.tcx),
aliases: item.attrs.get_doc_aliases(),
});
for alias in item.attrs.get_doc_aliases() {
self.cache
.aliases
.entry(alias.to_lowercase())
.or_insert(Vec::new())
.push(self.cache.search_index.len() - 1);
}
}
}
(Some(parent), None) if is_inherent_impl_item => {

View file

@ -82,18 +82,31 @@ crate fn build_index<'tcx>(krate: &clean::Crate, cache: &mut Cache, tcx: TyCtxt<
parent: Some(did),
parent_idx: None,
search_type: get_index_search_type(&item, cache, tcx),
aliases: item.attrs.get_doc_aliases(),
});
for alias in item.attrs.get_doc_aliases() {
cache
.aliases
.entry(alias.to_lowercase())
.or_insert(Vec::new())
.push(cache.search_index.len() - 1);
}
}
}
let Cache { ref mut search_index, ref paths, ref mut aliases, .. } = *cache;
let Cache { ref mut search_index, ref paths, .. } = *cache;
// Aliases added through `#[doc(alias = "...")]`. Since a few items can have the same alias,
// we need the alias element to have an array of items.
let mut aliases: BTreeMap<String, Vec<usize>> = BTreeMap::new();
// Sort search index items. This improves the compressibility of the search index.
search_index.sort_unstable_by(|k1, k2| {
// `sort_unstable_by_key` produces lifetime errors
let k1 = (&k1.path, &k1.name, &k1.ty, &k1.parent);
let k2 = (&k2.path, &k2.name, &k2.ty, &k2.parent);
std::cmp::Ord::cmp(&k1, &k2)
});
// Set up alias indexes.
for (i, item) in search_index.iter().enumerate() {
for alias in &item.aliases[..] {
aliases.entry(alias.to_lowercase()).or_insert(Vec::new()).push(i);
}
}
// Reduce `DefId` in paths into smaller sequential numbers,
// and prune the paths that do not appear in the index.
@ -201,7 +214,7 @@ crate fn build_index<'tcx>(krate: &clean::Crate, cache: &mut Cache, tcx: TyCtxt<
doc: crate_doc,
items: crate_items,
paths: crate_paths,
aliases,
aliases: &aliases,
})
.expect("failed serde conversion")
// All these `replace` calls are because we have to go through JS string for JSON content.

View file

@ -164,6 +164,7 @@ crate struct IndexItem {
crate parent: Option<DefId>,
crate parent_idx: Option<usize>,
crate search_type: Option<IndexItemFunctionType>,
crate aliases: Box<[String]>,
}
/// A type used for the search index.

View file

@ -368,55 +368,28 @@ impl<'a, 'tcx> LinkCollector<'a, 'tcx> {
}
/// Given a primitive type, try to resolve an associated item.
///
/// HACK(jynelson): `item_str` is passed in instead of derived from `item_name` so the
/// lifetimes on `&'path` will work.
fn resolve_primitive_associated_item(
&self,
prim_ty: PrimitiveType,
ns: Namespace,
module_id: DefId,
item_name: Symbol,
item_str: &'path str,
) -> Result<(Res, Option<String>), ErrorKind<'path>> {
) -> Option<(Res, String, Option<(DefKind, DefId)>)> {
let tcx = self.cx.tcx;
prim_ty
.impls(tcx)
.into_iter()
.find_map(|&impl_| {
tcx.associated_items(impl_)
.find_by_name_and_namespace(tcx, Ident::with_dummy_span(item_name), ns, impl_)
.map(|item| {
let kind = item.kind;
self.kind_side_channel.set(Some((kind.as_def_kind(), item.def_id)));
match kind {
ty::AssocKind::Fn => "method",
ty::AssocKind::Const => "associatedconstant",
ty::AssocKind::Type => "associatedtype",
}
})
.map(|out| {
(
Res::Primitive(prim_ty),
Some(format!("{}#{}.{}", prim_ty.as_str(), out, item_str)),
)
})
})
.ok_or_else(|| {
debug!(
"returning primitive error for {}::{} in {} namespace",
prim_ty.as_str(),
item_name,
ns.descr()
);
ResolutionFailure::NotResolved {
module_id,
partial_res: Some(Res::Primitive(prim_ty)),
unresolved: item_str.into(),
}
.into()
})
prim_ty.impls(tcx).into_iter().find_map(|&impl_| {
tcx.associated_items(impl_)
.find_by_name_and_namespace(tcx, Ident::with_dummy_span(item_name), ns, impl_)
.map(|item| {
let kind = item.kind;
let out = match kind {
ty::AssocKind::Fn => "method",
ty::AssocKind::Const => "associatedconstant",
ty::AssocKind::Type => "associatedtype",
};
let fragment = format!("{}#{}.{}", prim_ty.as_str(), out, item_name);
(Res::Primitive(prim_ty), fragment, Some((kind.as_def_kind(), item.def_id)))
})
})
}
/// Resolves a string as a macro.
@ -490,8 +463,6 @@ impl<'a, 'tcx> LinkCollector<'a, 'tcx> {
module_id: DefId,
extra_fragment: &Option<String>,
) -> Result<(Res, Option<String>), ErrorKind<'path>> {
let tcx = self.cx.tcx;
if let Some(res) = self.resolve_path(path_str, ns, module_id) {
match res {
// FIXME(#76467): make this fallthrough to lookup the associated
@ -534,29 +505,58 @@ impl<'a, 'tcx> LinkCollector<'a, 'tcx> {
}
})?;
// FIXME: are these both necessary?
let ty_res = if let Some(ty_res) = resolve_primitive(&path_root, TypeNS)
// FIXME(#83862): this arbitrarily gives precedence to primitives over modules to support
// links to primitives when `#[doc(primitive)]` is present. It should give an ambiguity
// error instead and special case *only* modules with `#[doc(primitive)]`, not all
// primitives.
resolve_primitive(&path_root, TypeNS)
.or_else(|| self.resolve_path(&path_root, TypeNS, module_id))
{
ty_res
} else {
// FIXME: this is duplicated on the end of this function.
return if ns == Namespace::ValueNS {
self.variant_field(path_str, module_id)
} else {
Err(ResolutionFailure::NotResolved {
module_id,
partial_res: None,
unresolved: path_root.into(),
.and_then(|ty_res| {
let (res, fragment, side_channel) =
self.resolve_associated_item(ty_res, item_name, ns, module_id)?;
let result = if extra_fragment.is_some() {
let diag_res = side_channel.map_or(res, |(k, r)| Res::Def(k, r));
Err(ErrorKind::AnchorFailure(AnchorFailure::RustdocAnchorConflict(diag_res)))
} else {
// HACK(jynelson): `clean` expects the type, not the associated item
// but the disambiguator logic expects the associated item.
// Store the kind in a side channel so that only the disambiguator logic looks at it.
if let Some((kind, id)) = side_channel {
self.kind_side_channel.set(Some((kind, id)));
}
Ok((res, Some(fragment)))
};
Some(result)
})
.unwrap_or_else(|| {
if ns == Namespace::ValueNS {
self.variant_field(path_str, module_id)
} else {
Err(ResolutionFailure::NotResolved {
module_id,
partial_res: None,
unresolved: path_root.into(),
}
.into())
}
.into())
};
};
})
}
let res = match ty_res {
Res::Primitive(prim) => Some(
self.resolve_primitive_associated_item(prim, ns, module_id, item_name, item_str),
),
/// Returns:
/// - None if no associated item was found
/// - Some((_, _, Some(_))) if an item was found and should go through a side channel
/// - Some((_, _, None)) otherwise
fn resolve_associated_item(
&mut self,
root_res: Res,
item_name: Symbol,
ns: Namespace,
module_id: DefId,
) -> Option<(Res, String, Option<(DefKind, DefId)>)> {
let tcx = self.cx.tcx;
match root_res {
Res::Primitive(prim) => self.resolve_primitive_associated_item(prim, ns, item_name),
Res::Def(
DefKind::Struct
| DefKind::Union
@ -599,59 +599,42 @@ impl<'a, 'tcx> LinkCollector<'a, 'tcx> {
ty::AssocKind::Const => "associatedconstant",
ty::AssocKind::Type => "associatedtype",
};
Some(if extra_fragment.is_some() {
Err(ErrorKind::AnchorFailure(AnchorFailure::RustdocAnchorConflict(ty_res)))
} else {
// HACK(jynelson): `clean` expects the type, not the associated item
// but the disambiguator logic expects the associated item.
// Store the kind in a side channel so that only the disambiguator logic looks at it.
self.kind_side_channel.set(Some((kind.as_def_kind(), id)));
Ok((ty_res, Some(format!("{}.{}", out, item_str))))
})
} else if ns == Namespace::ValueNS {
debug!("looking for variants or fields named {} for {:?}", item_name, did);
// FIXME(jynelson): why is this different from
// `variant_field`?
match tcx.type_of(did).kind() {
ty::Adt(def, _) => {
let field = if def.is_enum() {
def.all_fields().find(|item| item.ident.name == item_name)
} else {
def.non_enum_variant()
.fields
.iter()
.find(|item| item.ident.name == item_name)
};
field.map(|item| {
if extra_fragment.is_some() {
let res = Res::Def(
if def.is_enum() {
DefKind::Variant
} else {
DefKind::Field
},
item.did,
);
Err(ErrorKind::AnchorFailure(
AnchorFailure::RustdocAnchorConflict(res),
))
} else {
Ok((
ty_res,
Some(format!(
"{}.{}",
if def.is_enum() { "variant" } else { "structfield" },
item.ident
)),
))
}
})
}
_ => None,
}
} else {
None
// HACK(jynelson): `clean` expects the type, not the associated item
// but the disambiguator logic expects the associated item.
// Store the kind in a side channel so that only the disambiguator logic looks at it.
return Some((
root_res,
format!("{}.{}", out, item_name),
Some((kind.as_def_kind(), id)),
));
}
if ns != Namespace::ValueNS {
return None;
}
debug!("looking for variants or fields named {} for {:?}", item_name, did);
// FIXME: this doesn't really belong in `associated_item` (maybe `variant_field` is better?)
// NOTE: it's different from variant_field because it resolves fields and variants,
// not variant fields (2 path segments, not 3).
let def = match tcx.type_of(did).kind() {
ty::Adt(def, _) => def,
_ => return None,
};
let field = if def.is_enum() {
def.all_fields().find(|item| item.ident.name == item_name)
} else {
def.non_enum_variant().fields.iter().find(|item| item.ident.name == item_name)
}?;
let kind = if def.is_enum() { DefKind::Variant } else { DefKind::Field };
Some((
root_res,
format!(
"{}.{}",
if def.is_enum() { "variant" } else { "structfield" },
field.ident
),
Some((kind, field.did)),
))
}
Res::Def(DefKind::Trait, did) => tcx
.associated_items(did)
@ -669,27 +652,11 @@ impl<'a, 'tcx> LinkCollector<'a, 'tcx> {
}
};
if extra_fragment.is_some() {
Err(ErrorKind::AnchorFailure(AnchorFailure::RustdocAnchorConflict(ty_res)))
} else {
let res = Res::Def(item.kind.as_def_kind(), item.def_id);
Ok((res, Some(format!("{}.{}", kind, item_str))))
}
let res = Res::Def(item.kind.as_def_kind(), item.def_id);
(res, format!("{}.{}", kind, item_name), None)
}),
_ => None,
};
res.unwrap_or_else(|| {
if ns == Namespace::ValueNS {
self.variant_field(path_str, module_id)
} else {
Err(ResolutionFailure::NotResolved {
module_id,
partial_res: Some(ty_res),
unresolved: item_str.into(),
}
.into())
}
})
}
}
/// Used for reporting better errors.

View file

@ -1,19 +1,27 @@
warning: public documentation for `DocMe` links to private item `DontDocMe`
--> $DIR/private.rs:5:11
--> $DIR/private.rs:7:11
|
LL | /// docs [DontDocMe] [DontDocMe::f]
LL | /// docs [DontDocMe] [DontDocMe::f] [DontDocMe::x]
| ^^^^^^^^^ this item is private
|
= note: `#[warn(rustdoc::private_intra_doc_links)]` on by default
= note: this link resolves only because you passed `--document-private-items`, but will break without
warning: public documentation for `DocMe` links to private item `DontDocMe::f`
--> $DIR/private.rs:5:23
--> $DIR/private.rs:7:23
|
LL | /// docs [DontDocMe] [DontDocMe::f]
LL | /// docs [DontDocMe] [DontDocMe::f] [DontDocMe::x]
| ^^^^^^^^^^^^ this item is private
|
= note: this link resolves only because you passed `--document-private-items`, but will break without
warning: 2 warnings emitted
warning: public documentation for `DocMe` links to private item `DontDocMe::x`
--> $DIR/private.rs:7:38
|
LL | /// docs [DontDocMe] [DontDocMe::f] [DontDocMe::x]
| ^^^^^^^^^^^^ this item is private
|
= note: this link resolves only because you passed `--document-private-items`, but will break without
warning: 3 warnings emitted

View file

@ -1,19 +1,27 @@
warning: public documentation for `DocMe` links to private item `DontDocMe`
--> $DIR/private.rs:5:11
--> $DIR/private.rs:7:11
|
LL | /// docs [DontDocMe] [DontDocMe::f]
LL | /// docs [DontDocMe] [DontDocMe::f] [DontDocMe::x]
| ^^^^^^^^^ this item is private
|
= note: `#[warn(rustdoc::private_intra_doc_links)]` on by default
= note: this link will resolve properly if you pass `--document-private-items`
warning: public documentation for `DocMe` links to private item `DontDocMe::f`
--> $DIR/private.rs:5:23
--> $DIR/private.rs:7:23
|
LL | /// docs [DontDocMe] [DontDocMe::f]
LL | /// docs [DontDocMe] [DontDocMe::f] [DontDocMe::x]
| ^^^^^^^^^^^^ this item is private
|
= note: this link will resolve properly if you pass `--document-private-items`
warning: 2 warnings emitted
warning: public documentation for `DocMe` links to private item `DontDocMe::x`
--> $DIR/private.rs:7:38
|
LL | /// docs [DontDocMe] [DontDocMe::f] [DontDocMe::x]
| ^^^^^^^^^^^^ this item is private
|
= note: this link will resolve properly if you pass `--document-private-items`
warning: 3 warnings emitted

View file

@ -2,12 +2,16 @@
// revisions: public private
// [private]compile-flags: --document-private-items
/// docs [DontDocMe] [DontDocMe::f]
// make sure to update `rustdoc/intra-doc/private.rs` if you update this file
/// docs [DontDocMe] [DontDocMe::f] [DontDocMe::x]
//~^ WARNING public documentation for `DocMe` links to private item `DontDocMe`
//~| WARNING public documentation for `DocMe` links to private item `DontDocMe::x`
//~| WARNING public documentation for `DocMe` links to private item `DontDocMe::f`
// FIXME: for [private] we should also make sure the link was actually generated
pub struct DocMe;
struct DontDocMe;
struct DontDocMe {
x: usize,
}
impl DontDocMe {
fn f() {}

View file

@ -1,6 +1,17 @@
#![crate_name = "private"]
// compile-flags: --document-private-items
/// docs [DontDocMe]
// make sure to update `rustdoc-ui/intra-doc/private.rs` if you update this file
/// docs [DontDocMe] [DontDocMe::f] [DontDocMe::x]
// @has private/struct.DocMe.html '//*a[@href="../private/struct.DontDocMe.html"]' 'DontDocMe'
// @has private/struct.DocMe.html '//*a[@href="../private/struct.DontDocMe.html#method.f"]' 'DontDocMe::f'
// @has private/struct.DocMe.html '//*a[@href="../private/struct.DontDocMe.html#structfield.x"]' 'DontDocMe::x'
pub struct DocMe;
struct DontDocMe;
struct DontDocMe {
x: usize,
}
impl DontDocMe {
fn f() {}
}

View file

@ -45,4 +45,30 @@ fn main() {
//~^ ERROR mismatched types
let r = R { i: i };
//~^ ERROR mismatched types
let a = &1;
let b = &2;
let val: i32 = if true {
a + 1
} else {
b
//~^ ERROR mismatched types
};
let val: i32 = if true {
let _ = 2;
a + 1
} else {
let _ = 2;
b
//~^ ERROR mismatched types
};
let val = if true {
*a
} else if true {
//~^ ERROR incompatible types
b
} else {
&0
};
}

View file

@ -89,6 +89,43 @@ LL | let r = R { i: i };
| expected `u32`, found `&{integer}`
| help: consider dereferencing the borrow: `*i`
error: aborting due to 10 previous errors
error[E0308]: mismatched types
--> $DIR/deref-suggestion.rs:55:9
|
LL | b
| ^
| |
| expected `i32`, found `&{integer}`
| help: consider dereferencing the borrow: `*b`
error[E0308]: mismatched types
--> $DIR/deref-suggestion.rs:63:9
|
LL | b
| ^
| |
| expected `i32`, found `&{integer}`
| help: consider dereferencing the borrow: `*b`
error[E0308]: `if` and `else` have incompatible types
--> $DIR/deref-suggestion.rs:68:12
|
LL | let val = if true {
| _______________-
LL | | *a
| | -- expected because of this
LL | | } else if true {
| |____________^
LL | ||
LL | || b
LL | || } else {
LL | || &0
LL | || };
| || ^
| ||_____|
| |______`if` and `else` have incompatible types
| expected `i32`, found `&{integer}`
error: aborting due to 13 previous errors
For more information about this error, try `rustc --explain E0308`.

View file

@ -0,0 +1,11 @@
// AST-based macro attributes expanding to an empty expression produce an error and not ICE.
#![feature(custom_test_frameworks)]
#![feature(stmt_expr_attributes)]
#![feature(test)]
fn main() {
let _ = #[test] 0; //~ ERROR removing an expression is not supported in this position
let _ = #[bench] 1; //~ ERROR removing an expression is not supported in this position
let _ = #[test_case] 2; //~ ERROR removing an expression is not supported in this position
}

View file

@ -0,0 +1,20 @@
error: removing an expression is not supported in this position
--> $DIR/attr-empty-expr.rs:8:13
|
LL | let _ = #[test] 0;
| ^^^^^^^
error: removing an expression is not supported in this position
--> $DIR/attr-empty-expr.rs:9:13
|
LL | let _ = #[bench] 1;
| ^^^^^^^^
error: removing an expression is not supported in this position
--> $DIR/attr-empty-expr.rs:10:13
|
LL | let _ = #[test_case] 2;
| ^^^^^^^^^^^^
error: aborting due to 3 previous errors

View file

@ -0,0 +1,7 @@
// Regression test for #83621.
extern "C" {
static x: _; //~ ERROR: [E0121]
}
fn main() {}

View file

@ -0,0 +1,9 @@
error[E0121]: the type placeholder `_` is not allowed within types on item signatures
--> $DIR/issue-83621-placeholder-static-in-extern.rs:4:15
|
LL | static x: _;
| ^ not allowed in type signatures
error: aborting due to previous error
For more information about this error, try `rustc --explain E0121`.

@ -1 +1 @@
Subproject commit bb1d925dab36372c6bd1fb5671bb68ce938ff009
Subproject commit 19e09a4a54c75312aeaac04577f2d0e067463ab6