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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4
compiler/rustc_session/src/cstore.rs
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@ -207,7 +207,7 @@ pub trait MetadataLoader: std::fmt::Debug {
fn get_dylib_metadata(&self, target: &Target, filename: &Path) -> Result<MetadataRef, String>;
}
pub type MetadataLoaderDyn = dyn MetadataLoader + Send + Sync;
pub type MetadataLoaderDyn = dyn MetadataLoader + Send + Sync + sync::DynSend + sync::DynSync;
/// A store of Rust crates, through which their metadata can be accessed.
///
@ -252,7 +252,7 @@ pub trait CrateStore: std::fmt::Debug {
fn import_source_files(&self, sess: &Session, cnum: CrateNum);
}
pub type CrateStoreDyn = dyn CrateStore + sync::Sync + sync::Send;
pub type CrateStoreDyn = dyn CrateStore + sync::DynSync + sync::DynSend;
pub struct Untracked {
pub cstore: RwLock<Box<CrateStoreDyn>>,