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Auto merge of rust-lang#124617 - GuillaumeGomez:rollup-eihxh6v, r=GuillaumeGomez
Rollup of 3 pull requests Successful merges: - rust-lang#124568 (Adjust `#[macro_export]`/doctest help suggestion for non_local_defs lint) - rust-lang#124582 (always print nice 'std not found' error when std is not found) - rust-lang#124597 (Use an explicit x86-64 cpu in tests that are sensitive to it) r? `@ghost` `@rustbot` modify labels: rollup
2 parents 80451a4 + 1b0972c commit 9382ba4

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‎compiler/rustc_lint/messages.ftl

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@@ -456,6 +456,8 @@ lint_non_local_definitions_macro_rules = non-local `macro_rules!` definition, th
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[one] `{$body_name}`
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*[other] `{$body_name}` and up {$depth} bodies
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}
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.help_doctest =
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remove the `#[macro_export]` or make this doc-test a standalone test with its own `fn main() {"{"} ... {"}"}`
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.non_local = a `macro_rules!` definition is non-local if it is nested inside an item and has a `#[macro_export]` attribute
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.exception = one exception to the rule are anon-const (`const _: () = {"{"} ... {"}"}`) at top-level module
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‎compiler/rustc_lint/src/lints.rs

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@@ -1350,14 +1350,18 @@ pub enum NonLocalDefinitionsDiag {
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const_anon: Option<Span>,
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},
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#[diag(lint_non_local_definitions_macro_rules)]
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#[help]
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#[note(lint_non_local)]
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#[note(lint_exception)]
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#[note(lint_non_local_definitions_deprecation)]
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MacroRules {
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depth: u32,
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body_kind_descr: &'static str,
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body_name: String,
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#[help]
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help: Option<()>,
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#[help(lint_help_doctest)]
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doctest_help: Option<()>,
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#[note(lint_non_local)]
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#[note(lint_exception)]
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#[note(lint_non_local_definitions_deprecation)]
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notes: (),
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#[subdiagnostic]
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cargo_update: Option<NonLocalDefinitionsCargoUpdateNote>,
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},

‎compiler/rustc_lint/src/non_local_def.rs

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@@ -233,6 +233,12 @@ impl<'tcx> LateLintPass<'tcx> for NonLocalDefinitions {
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ItemKind::Macro(_macro, MacroKind::Bang)
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if cx.tcx.has_attr(item.owner_id.def_id, sym::macro_export) =>
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{
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// determining we if are in a doctest context can't currently be determined
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// by the code it-self (no specific attrs), but fortunatly rustdoc sets a
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// perma-unstable env for libtest so we just re-use that env for now
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let is_at_toplevel_doctest =
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self.body_depth == 2 && std::env::var("UNSTABLE_RUSTDOC_TEST_PATH").is_ok();
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cx.emit_span_lint(
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NON_LOCAL_DEFINITIONS,
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item.span,
@@ -243,6 +249,9 @@ impl<'tcx> LateLintPass<'tcx> for NonLocalDefinitions {
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.map(|s| s.to_ident_string())
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.unwrap_or_else(|| "<unnameable>".to_string()),
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cargo_update: cargo_update(),
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help: (!is_at_toplevel_doctest).then_some(()),
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doctest_help: is_at_toplevel_doctest.then_some(()),
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notes: (),
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},
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)
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}

‎compiler/rustc_metadata/src/errors.rs

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@@ -5,7 +5,6 @@ use std::{
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use rustc_errors::{codes::*, Diag, DiagCtxt, Diagnostic, EmissionGuarantee, Level};
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use rustc_macros::{Diagnostic, Subdiagnostic};
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use rustc_session::config;
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use rustc_span::{sym, Span, Symbol};
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use rustc_target::spec::{PanicStrategy, TargetTriple};
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@@ -640,9 +639,7 @@ impl<G: EmissionGuarantee> Diagnostic<'_, G> for CannotFindCrate {
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diag.arg("locator_triple", self.locator_triple.triple());
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diag.code(E0463);
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diag.span(self.span);
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if (self.crate_name == sym::std || self.crate_name == sym::core)
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&& self.locator_triple != TargetTriple::from_triple(config::host_triple())
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{
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if self.crate_name == sym::std || self.crate_name == sym::core {
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if self.missing_core {
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diag.note(fluent::metadata_target_not_installed);
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} else {

‎tests/assembly/simd-intrinsic-mask-reduce.rs

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@@ -1,6 +1,8 @@
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// verify that simd mask reductions do not introduce additional bit shift operations
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//@ revisions: x86 aarch64
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//@ [x86] compile-flags: --target=x86_64-unknown-linux-gnu -C llvm-args=-x86-asm-syntax=intel
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// Set the base cpu explicitly, in case the default has been changed.
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//@ [x86] compile-flags: -C target-cpu=x86-64
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//@ [x86] needs-llvm-components: x86
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//@ [aarch64] compile-flags: --target=aarch64-unknown-linux-gnu
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//@ [aarch64] needs-llvm-components: aarch64

‎tests/assembly/x86_64-floating-point-clamp.rs

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@@ -2,7 +2,8 @@
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// so check to make sure that's what it's actually emitting.
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//@ assembly-output: emit-asm
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//@ compile-flags: --crate-type=lib -O -C llvm-args=-x86-asm-syntax=intel
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// Set the base cpu explicitly, in case the default has been changed.
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//@ compile-flags: --crate-type=lib -O -C llvm-args=-x86-asm-syntax=intel -C target-cpu=x86-64
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//@ only-x86_64
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//@ ignore-sgx
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‎tests/codegen/target-feature-inline-closure.rs

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@@ -1,5 +1,6 @@
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//@ only-x86_64
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//@ compile-flags: -Copt-level=3
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// Set the base cpu explicitly, in case the default has been changed.
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//@ compile-flags: -Copt-level=3 -Ctarget-cpu=x86-64
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#![crate_type = "lib"]
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#![feature(target_feature_11)]

‎tests/rustdoc-ui/doctest/non_local_defs.rs

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@@ -0,0 +1,10 @@
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//@ check-pass
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//@ compile-flags:--test --test-args --test-threads=1 --nocapture -Zunstable-options
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//@ normalize-stdout-test: "tests/rustdoc-ui/doctest" -> "$$DIR"
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//@ normalize-stderr-test: "tests/rustdoc-ui/doctest" -> "$$DIR"
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//@ normalize-stdout-test "finished in \d+\.\d+s" -> "finished in $$TIME"
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//! ```
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//! #[macro_export]
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//! macro_rules! a_macro { () => {} }
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//! ```

‎tests/rustdoc-ui/doctest/non_local_defs.stderr

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@@ -0,0 +1,14 @@
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warning: non-local `macro_rules!` definition, they should be avoided as they go against expectation
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--> $DIR/non_local_defs.rs:9:1
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|
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LL | macro_rules! a_macro { () => {} }
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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|
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= help: remove the `#[macro_export]` or make this doc-test a standalone test with its own `fn main() { ... }`
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= note: a `macro_rules!` definition is non-local if it is nested inside an item and has a `#[macro_export]` attribute
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= note: one exception to the rule are anon-const (`const _: () = { ... }`) at top-level module
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= note: this lint may become deny-by-default in the edition 2024 and higher, see the tracking issue <https://github.com/rust-lang/rust/issues/120363>
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= note: `#[warn(non_local_definitions)]` on by default
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warning: 1 warning emitted
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‎tests/rustdoc-ui/doctest/non_local_defs.stdout

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@@ -0,0 +1,6 @@
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running 1 test
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test $DIR/non_local_defs.rs - (line 7) ... ok
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test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
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