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Add comments describing InputFieldIngredient

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Co-authored-by: Niko Matsakis <niko@alum.mit.edu>
This commit is contained in:
Mihail Mihov 2022-08-12 19:01:16 +03:00
parent 11b23c942b
commit 9b7f7fd4ed
1 changed files with 5 additions and 0 deletions
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5
components/salsa-2022/src/input_field.rs
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@ -7,6 +7,11 @@ use crate::key::DependencyIndex;
use crate::runtime::local_state::QueryInputs;
use crate::runtime::StampedValue;
/// Ingredient used to represent the fields of a `#[salsa::input]`.
/// These fields can only be mutated by an explicit call to a setter
/// with an `&mut` reference to the database,
/// and therefore cannot be mutated during a tracked function or in parallel.
/// This makes the implementation considerably simpler.
pub struct InputFieldIngredient<K, F> {
index: IngredientIndex,
map: FxHashMap<K, StampedValue<F>>