bjoernager/rust
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Auto merge of #107586 - SparrowLii:parallel-query, r=cjgillot

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Introduce `DynSend` and `DynSync` auto trait for parallel compiler

part of parallel-rustc #101566

This PR introduces `DynSend / DynSync` trait and `FromDyn / IntoDyn` structure in rustc_data_structure::marker. `FromDyn` can dynamically check data structures for thread safety when switching to parallel environments (such as calling `par_for_each_in`). This happens only when `-Z threads > 1` so it doesn't affect single-threaded mode's compile efficiency.

r? `@cjgillot`
This commit is contained in:
bors 2023-05-13 13:47:53 +00:00
commit dd8ec9c88d
26 changed files with 557 additions and 110 deletions
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6
compiler/rustc_errors/src/lib.rs
View file

@ -32,7 +32,7 @@ use emitter::{is_case_difference, Emitter, EmitterWriter};
use registry::Registry;
use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap, FxIndexSet};
use rustc_data_structures::stable_hasher::{Hash128, StableHasher};
use rustc_data_structures::sync::{self, Lock, Lrc};
use rustc_data_structures::sync::{self, IntoDynSyncSend, Lock, Lrc};
use rustc_data_structures::AtomicRef;
pub use rustc_error_messages::{
fallback_fluent_bundle, fluent_bundle, DelayDm, DiagnosticMessage, FluentBundle,
@ -409,7 +409,7 @@ struct HandlerInner {
err_count: usize,
warn_count: usize,
deduplicated_err_count: usize,
emitter: Box<dyn Emitter + sync::Send>,
emitter: IntoDynSyncSend<Box<dyn Emitter + sync::Send>>,
delayed_span_bugs: Vec<DelayedDiagnostic>,
delayed_good_path_bugs: Vec<DelayedDiagnostic>,
/// This flag indicates that an expected diagnostic was emitted and suppressed.
@ -605,7 +605,7 @@ impl Handler {
warn_count: 0,
deduplicated_err_count: 0,
deduplicated_warn_count: 0,
emitter,
emitter: IntoDynSyncSend(emitter),
delayed_span_bugs: Vec::new(),
delayed_good_path_bugs: Vec::new(),
suppressed_expected_diag: false,

10
compiler/rustc_errors/src/tests.rs
View file

@ -2,7 +2,7 @@ use crate::error::{TranslateError, TranslateErrorKind};
use crate::fluent_bundle::*;
use crate::translation::Translate;
use crate::FluentBundle;
use rustc_data_structures::sync::Lrc;
use rustc_data_structures::sync::{IntoDynSyncSend, Lrc};
use rustc_error_messages::fluent_bundle::resolver::errors::{ReferenceKind, ResolverError};
use rustc_error_messages::langid;
use rustc_error_messages::DiagnosticMessage;
@ -27,10 +27,14 @@ fn make_dummy(ftl: &'static str) -> Dummy {
let langid_en = langid!("en-US");
#[cfg(parallel_compiler)]
let mut bundle = FluentBundle::new_concurrent(vec![langid_en]);
let mut bundle: FluentBundle =
IntoDynSyncSend(crate::fluent_bundle::bundle::FluentBundle::new_concurrent(vec![
langid_en,
]));
#[cfg(not(parallel_compiler))]
let mut bundle = FluentBundle::new(vec![langid_en]);
let mut bundle: FluentBundle =
IntoDynSyncSend(crate::fluent_bundle::bundle::FluentBundle::new(vec![langid_en]));
bundle.add_resource(resource).expect("Failed to add FTL resources to the bundle.");