mirror of
https://github.com/salsa-rs/salsa.git
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93c30a953d
Switch to a procedural implementation of the `query_group!` macro,
residing in the `components/salsa_macros` subcrate.
Allow the user to override the invoked function via `salsa::invoke(...)`
and the name of the generated query type via `salsa::query_type(...)`.
In all tests, replace the `salsa::query_group! { ... }` invocations with
the new attribute-style `#[salsa::query_group]` macro, and change them
to the new naming scheme for query types (`...Query`).
Update README, examples, and documentation.
32 lines
697 B
Rust
32 lines
697 B
Rust
use crate::queries;
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use std::cell::Cell;
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#[derive(Default)]
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pub struct DatabaseImpl {
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runtime: salsa::Runtime<DatabaseImpl>,
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counter: Cell<usize>,
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}
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salsa::database_storage! {
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pub struct DatabaseImplStorage for DatabaseImpl {
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impl queries::Database {
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fn memoized() for queries::MemoizedQuery;
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fn volatile() for queries::VolatileQuery;
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}
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}
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}
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impl queries::Counter for DatabaseImpl {
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fn increment(&self) -> usize {
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let v = self.counter.get();
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self.counter.set(v + 1);
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v
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}
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}
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impl salsa::Database for DatabaseImpl {
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fn salsa_runtime(&self) -> &salsa::Runtime<DatabaseImpl> {
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&self.runtime
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}
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}
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