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Previously in the `//`-compiletest-directive times, this was implemented
as a special `no-*` directive parsing. In the migration from `//` ->
`//@`, the `// no-remap-src-base` directive was lost, most likely
because it had no effect -- the default is not remapping `src-base`.
So remove occurrences of `no-remap-src-base`, as these are not valid
directives.
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The compiler just puts `DefId` in there, but rust-analyzer uses different types for each kind of item.
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When encountering an unmet trait bound, point at local type that doesn't implement the trait:
```
error[E0277]: the trait bound `Bar<T>: Foo` is not satisfied
--> $DIR/issue-64855.rs:9:19
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LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ;
| ^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
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help: the trait `Foo` is not implemented for `Bar<T>`
--> $DIR/issue-64855.rs:9:1
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LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ;
| ^^^^^^^^^^^^^^^^^
```
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Rollup of 15 pull requests
Successful merges:
- rust-lang/rust#139345 (Extend `QueryStability` to handle `IntoIterator` implementations)
- rust-lang/rust#140740 (Add `-Zindirect-branch-cs-prefix`)
- rust-lang/rust#142079 (nll-relate: improve hr opaque types support)
- rust-lang/rust#142938 (implement std::fs::set_permissions_nofollow on unix)
- rust-lang/rust#143730 (fmt of non-decimal radix untangled)
- rust-lang/rust#144767 (Correct some grammar in integer documentation)
- rust-lang/rust#144906 (Require approval from t-infra instead of t-release on tier bumps)
- rust-lang/rust#144983 (Rehome 37 `tests/ui/issues/` tests to other subdirectories under `tests/ui/`)
- rust-lang/rust#145025 (run spellcheck as a tidy extra check in ci)
- rust-lang/rust#145099 (rustc_target: Add the `32s` target feature for LoongArch)
- rust-lang/rust#145166 (suggest using `pub(crate)` for E0364)
- rust-lang/rust#145255 (dec2flt: Provide more valid inputs examples)
- rust-lang/rust#145306 (Add tracing to various miscellaneous functions)
- rust-lang/rust#145336 (Hide docs for `core::unicode`)
- rust-lang/rust#145585 (Miri: fix handling of in-place argument and return place handling)
r? `@ghost`
`@rustbot` modify labels: rollup
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Fix adjacent code
Fix duplicate warning; merge test into `tests/ui-fulldeps/internal-lints`
Use `rustc_middle::ty::FnSig::inputs`
Address two review comments
- https://github.com/rust-lang/rust/pull/139345#discussion_r2109006991
- https://github.com/rust-lang/rust/pull/139345#discussion_r2109058588
Use `Instance::try_resolve`
Import `rustc_middle::ty::Ty` as `Ty` rather than `MiddleTy`
Simplify predicate handling
Add more `#[allow(rustc::potential_query_instability)]` following rebase
Remove two `#[allow(rustc::potential_query_instability)]` following rebase
Address review comment
Update compiler/rustc_lint/src/internal.rs
Co-authored-by: lcnr <rust@lcnr.de>
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```
error: cannot find attribute `sede` in this scope
--> $DIR/missing-derive-3.rs:20:7
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LL | #[sede(untagged)]
| ^^^^
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help: the derive macros `Deserialize` and `Serialize` accept the similarly named `serde` attribute
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LL | #[serde(untagged)]
| +
error: cannot find attribute `serde` in this scope
--> $DIR/missing-derive-3.rs:14:7
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LL | #[serde(untagged)]
| ^^^^^
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note: `serde` is imported here, but it is a crate, not an attribute
--> $DIR/missing-derive-3.rs:4:1
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LL | extern crate serde;
| ^^^^^^^^^^^^^^^^^^^
help: `serde` is an attribute that can be used by the derive macros `Deserialize` and `Serialize`, you might be missing a `derive` attribute
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LL + #[derive(Deserialize, Serialize)]
LL | enum B {
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```
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StableMIR: Add method to retrieve body of coroutine
It would be handy if we can retrieve body of a coroutine in StableMIR.
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Also avoid creating and cloning sysroot unnecessarily.
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completely deduplicate `Visitor` and `MutVisitor`
r? oli-obk
This closes rust-lang/rust#127615.
### Discussion
> * Give every `MutVisitor::visit_*` method a corresponding `flat_map_*` method.
Not every AST node exists in a location where they can be mapped to multiple instances of themselves. Not every AST node exists in a location where they can be removed from existence (e.g. `filter_map_expr`). I don't think this is doable.
> * Give every `MutVisitor::visit_*` method a corresponding `Visitor` method and vice versa
The only three remaining method-level asymmetries after this PR are `visit_stmt` and `visit_nested_use_tree` (only on `Visitor`) and `visit_span` (only on `MutVisitor`).
`visit_stmt` doesn't seem applicable to `MutVisitor` because `walk_flat_map_stmt_kind` will ask `flat_map_item` / `filter_map_expr` to potentially turn a single `Stmt` to multiple based on what a visitor wants. So only using `flat_map_stmt` seems appropriate.
`visit_nested_use_tree` is used for `rustc_resolve` to track stuff. Not useful for `MutVisitor` for now.
`visit_span` is currently not used for `MutVisitor` already, it was just kept in case we want to revive rust-lang/rust#127241. cc `@cjgillot` maybe we could remove for now and re-insert later if we find a use-case? It does involve some extra effort to maintain.
* Remaining FIXMEs
`visit_lifetime` has an extra param for `Visitor` that's not in `MutVisitor`. This is again something only used by `rustc_resolve`. I think we can keep that symmetry for now.
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This test currently fails (as expected).
--- stderr -------------------------------
Pretty-printer lost necessary parentheses
BEFORE: #[attr] (1 + 1)
AFTER: #[attr] 1 + 1
Pretty-printer lost necessary parentheses
BEFORE: #[attr] (1 as T)
AFTER: #[attr] 1 as T
Pretty-printer lost necessary parentheses
BEFORE: #[attr] (x = 1)
AFTER: #[attr] x = 1
Pretty-printer lost necessary parentheses
BEFORE: #[attr] (x += 1)
AFTER: #[attr] x += 1
------------------------------------------
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Try unremapping compiler sources
See [#t-compiler/help > Span pointing to wrong file location (`rustc-dev` component)](https://rust-lang.zulipchat.com/#narrow/channel/182449-t-compiler.2Fhelp/topic/Span.20pointing.20to.20wrong.20file.20location.20.28.60rustc-dev.60.20component.29/with/521087083).
This PR is a follow-up to rust-lang/rust#141751 regarding the compiler side.
Specifically we now take into account the `CFG_VIRTUAL_RUSTC_DEV_SOURCE_BASE_DIR` env from rust-lang/rust#141751 when trying to unremap sources from `$sysroot/lib/rustlib/rustc-src/rust` (the `rustc-dev` component install directory).
Best reviewed commit by commit.
cc ``@samueltardieu``
r? ``@jieyouxu``
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This commit adds a lint to prevent the use of rustc_type_ir in random
compiler crates, except for type system internals traits, which are
explicitly allowed. Moreover, this fixes diagnostic_items() to include
the CRATE_OWNER_ID, otherwise rustc_diagnostic_item attribute is ignored
on the crate root.
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avoid `&mut P<T>` in `visit_expr` etc methods
trying a different way than rust-lang/rust#141636
r? ghost
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r=workingjubilee,saethlin
Move metadata object generation for dylibs to the linker code
This deduplicates some code between codegen backends and may in the future allow adding extra metadata that is only known at link time.
Prerequisite of https://github.com/rust-lang/rust/issues/96708.
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Reduce precedence of expressions that have an outer attr
Previously, `-Zunpretty=expanded` would expand this program as follows:
```rust
#![feature(stmt_expr_attributes)]
macro_rules! repro {
($e:expr) => {
#[allow(deprecated)] $e
};
}
#[derive(Default)]
struct Thing {
#[deprecated]
field: i32,
}
fn main() {
let thing = Thing::default();
let _ = repro!(thing).field;
}
```
```rs
#![feature(prelude_import)]
#![feature(stmt_expr_attributes)]
#[prelude_import]
use std::prelude::rust_2021::*;
#[macro_use]
extern crate std;
struct Thing {
#[deprecated]
field: i32,
}
#[automatically_derived]
impl ::core::default::Default for Thing {
#[inline]
fn default() -> Thing {
Thing { field: ::core::default::Default::default() }
}
}
fn main() {
let thing = Thing::default();
let _ = #[allow(deprecated)] thing.field;
}
```
This is not the correct expansion. The correct output would have `(#[allow(deprecated)] thing).field` with the attribute applying only to `thing`, not to `thing.field`.
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Look at proc-macro attributes when encountering unknown attribute
```
error: cannot find attribute `sede` in this scope
--> $DIR/missing-derive-2.rs:22:7
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LL | #[sede(untagged)]
| ^^^^
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help: the derive macros `Deserialize` and `Serialize` accept the similarly named `serde` attribute
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LL | #[serde(untagged)]
| +
error: cannot find attribute `serde` in this scope
--> $DIR/missing-derive-2.rs:16:7
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LL | #[serde(untagged)]
| ^^^^^
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note: `serde` is imported here, but it is a crate, not an attribute
--> $DIR/missing-derive-2.rs:5:1
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LL | extern crate serde;
| ^^^^^^^^^^^^^^^^^^^
help: `serde` is an attribute that can be used by the derive macros `Serialize` and `Deserialize`, you might be missing a `derive` attribute
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LL + #[derive(Serialize, Deserialize)]
LL | enum B {
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```
Partially address #47608. This PR doesn't find [macros that haven't yet been imported by name](https://github.com/rust-lang/rust/pull/109278/commits/af945cb86e03b44a4b6dc4d54ec1424b00a2349e).
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This test currently fails (as expected).
--- stderr -------------------------------
Pretty-printer lost necessary parentheses
BEFORE: (#[attr] loop {}).field
AFTER: #[attr] loop {}.field
------------------------------------------
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Implement asymmetrical precedence for closures and jumps
I have been through a series of asymmetrical precedence designs in Syn, and finally have one that I like and is worth backporting into rustc. It is based on just 2 bits of state: `next_operator_can_begin_expr` and `next_operator_can_continue_expr`.
Asymmetrical precedence is the thing that enables `(return 1) + 1` to require parentheses while `1 + return 1` does not, despite `+` always having stronger precedence than `return` [according to the Rust Reference](https://doc.rust-lang.org/1.83.0/reference/expressions.html#expression-precedence). This is facilitated by `next_operator_can_continue_expr`.
Relatedly, it is the thing that enables `(return) - 1` to require parentheses while `return + 1` does not, despite `+` and `-` having exactly the same precedence. This is facilitated by `next_operator_can_begin_expr`.
**Example:**
```rust
macro_rules! repro {
($e:expr) => {
$e - $e;
$e + $e;
};
}
fn main() {
repro!{return}
repro!{return 1}
}
```
`-Zunpretty=expanded` **Before:**
```console
fn main() {
(return) - (return);
(return) + (return);
(return 1) - (return 1);
(return 1) + (return 1);
}
```
**After:**
```console
fn main() {
(return) - return;
return + return;
(return 1) - return 1;
(return 1) + return 1;
}
```
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```
error: cannot find attribute `empty_helper` in this scope
--> $DIR/derive-helper-legacy-limits.rs:17:3
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LL | #[empty_helper]
| ^^^^^^^^^^^^
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help: `empty_helper` is an attribute that can be used by the derive macro `Empty`, you might be missing a `derive` attribute
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LL + #[derive(Empty)]
LL | struct S2;
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```
Look at proc-macro attributes when encountering unknown attribute
```
error: cannot find attribute `sede` in this scope
--> src/main.rs:18:7
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18 | #[sede(untagged)]
| ^^^^
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help: the derive macros `Serialize` and `Deserialize` accept the similarly named `serde` attribute
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18 | #[serde(untagged)]
| ~~~~~
error: cannot find attribute `serde` in this scope
--> src/main.rs:12:7
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12 | #[serde(untagged)]
| ^^^^^
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= note: `serde` is in scope, but it is a crate, not an attribute
help: `serde` is an attribute that can be used by the derive macros `Serialize` and `Deserialize`, you might be missing a `derive` attribute
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10 | #[derive(Serialize, Deserialize)]
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```
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Add method to retrieve body of closure in stable-mir
fixes https://github.com/rust-lang/project-stable-mir/issues/85
r? `@celinval`
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This deduplicates some code between codegen backends and may in the
future allow adding extra metadata that is only known at link time.
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`visit_clobber` is not really useful except for one niche purpose
involving generic code. We should just use the replace logic where we
can.
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Remove global `next_disambiguator` state and handle it with a `DisambiguatorState` type
This removes `Definitions.next_disambiguator` as it doesn't guarantee deterministic def paths when `create_def` is called in parallel. Instead a new `DisambiguatorState` type is passed as a mutable reference to `create_def` to help create unique def paths. `create_def` calls with distinct `DisambiguatorState` instances must ensure that that the def paths are unique without its help.
Anon associated types did rely on this global state for uniqueness and are changed to use (method they're defined in + their position in the method return type) as the `DefPathData` to ensure uniqueness. This also means that the method they're defined in appears in error messages, which is nicer.
`DefPathData::NestedStatic` is added to use for nested data inside statics instead of reusing `DefPathData::AnonConst` to avoid conflicts with those.
cc `@oli-obk`
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It's no longer necessary after the removal of nonterminal tokens in #124141.
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Pass `args` to `run` instead of storing it in a field. This avoids the
need to clone it within `run`.
Also, change `args` from `Vec<String>` to `&[String]`, avoiding the need
for some vecs and clones.
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