bjoernager/rust
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Add Config::hash_untracked_state callback

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This commit is contained in:
Alex Macleod 2023-10-13 17:28:34 +00:00
parent 34bc5716b5
commit 59f6f044f5
7 changed files with 28 additions and 7 deletions
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15
compiler/rustc_interface/src/interface.rs
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@ -5,6 +5,7 @@ use rustc_ast::{self as ast, LitKind, MetaItemKind};
use rustc_codegen_ssa::traits::CodegenBackend;
use rustc_data_structures::defer;
use rustc_data_structures::fx::{FxHashMap, FxHashSet};
use rustc_data_structures::stable_hasher::StableHasher;
use rustc_data_structures::sync::Lrc;
use rustc_errors::registry::Registry;
use rustc_errors::{ErrorGuaranteed, Handler};
@ -260,6 +261,12 @@ pub struct Config {
/// This is a callback from the driver that is called when [`ParseSess`] is created.
pub parse_sess_created: Option<Box<dyn FnOnce(&mut ParseSess) + Send>>,
/// This is a callback to hash otherwise untracked state used by the caller, if the
/// hash changes between runs the incremental cache will be cleared.
///
/// e.g. used by Clippy to hash its config file
pub hash_untracked_state: Option<Box<dyn FnOnce(&Session, &mut StableHasher) + Send>>,
/// This is a callback from the driver that is called when we're registering lints;
/// it is called during plugin registration when we have the LintStore in a non-shared state.
///
@ -269,8 +276,6 @@ pub struct Config {
/// This is a callback from the driver that is called just after we have populated
/// the list of queries.
///
/// The second parameter is local providers and the third parameter is external providers.
pub override_queries: Option<fn(&Session, &mut Providers)>,
/// This is a callback from the driver that is called to create a codegen backend.
@ -330,6 +335,12 @@ pub fn run_compiler<R: Send>(config: Config, f: impl FnOnce(&Compiler) -> R + Se
parse_sess_created(&mut sess.parse_sess);
}
if let Some(hash_untracked_state) = config.hash_untracked_state {
let mut hasher = StableHasher::new();
hash_untracked_state(&sess, &mut hasher);
sess.opts.untracked_state_hash = hasher.finish()
}
let compiler = Compiler {
sess: Lrc::new(sess),
codegen_backend: Lrc::from(codegen_backend),