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yet another db api

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This commit is contained in:
Aleksey Kladov 2018-09-15 17:21:47 +03:00
parent 0d7b1e442d
commit d59413c895
5 changed files with 276 additions and 260 deletions
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12
crates/salsa/src/lib.rs
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@ -8,8 +8,8 @@ use std::{
};
use parking_lot::Mutex;
type GroundQueryFn<T, D> = Box<Fn(&T, &D) -> (D, OutputFingerprint) + Send + Sync + 'static>;
type QueryFn<T, D> = Box<Fn(&QueryCtx<T, D>, &D) -> (D, OutputFingerprint) + Send + Sync + 'static>;
pub type GroundQueryFn<T, D> = Box<Fn(&T, &D) -> (D, OutputFingerprint) + Send + Sync + 'static>;
pub type QueryFn<T, D> = Box<Fn(&QueryCtx<T, D>, &D) -> (D, OutputFingerprint) + Send + Sync + 'static>;
#[derive(Debug)]
pub struct Db<T, D> {
@ -118,6 +118,9 @@ where
self.record_dep(query_id, output_fingerprint);
res
}
pub fn trace(&self) -> Vec<QueryTypeId> {
::std::mem::replace(&mut *self.executed.borrow_mut(), Vec::new())
}
fn get_inner(
&self,
@ -261,12 +264,15 @@ where
query_config: Arc::clone(&self.query_config)
}
}
pub fn query_ctx(&self) -> QueryCtx<T, D> {
QueryCtx::new(self)
}
pub fn get(
&self,
query_id: QueryId,
params: D,
) -> (D, Vec<QueryTypeId>) {
let ctx = QueryCtx::new(self);
let ctx = self.query_ctx();
let res = ctx.get(query_id, params.into());
let executed = ::std::mem::replace(&mut *ctx.executed.borrow_mut(), Vec::new());
(res, executed)