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.
98 lines
2.9 KiB
Rust
98 lines
2.9 KiB
Rust
use crate::implementation::{TestContext, TestContextImpl};
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use salsa::debug::DebugQueryTable;
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use salsa::Database;
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#[salsa::query_group]
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pub(crate) trait ConstantsDatabase: TestContext {
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#[salsa::input]
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fn constants_input(&self, key: char) -> usize;
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fn constants_add(&self, keys: (char, char)) -> usize;
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}
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fn constants_add(db: &impl ConstantsDatabase, (key1, key2): (char, char)) -> usize {
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db.log().add(format!("add({}, {})", key1, key2));
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db.constants_input(key1) + db.constants_input(key2)
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}
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#[test]
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#[should_panic]
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fn invalidate_constant() {
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let db = &mut TestContextImpl::default();
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db.query_mut(ConstantsInputQuery).set_constant('a', 44);
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db.query_mut(ConstantsInputQuery).set_constant('a', 66);
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}
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#[test]
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#[should_panic]
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fn invalidate_constant_1() {
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let db = &mut TestContextImpl::default();
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// Not constant:
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db.query_mut(ConstantsInputQuery).set('a', 44);
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// Becomes constant:
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db.query_mut(ConstantsInputQuery).set_constant('a', 44);
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// Invalidates:
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db.query_mut(ConstantsInputQuery).set_constant('a', 66);
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}
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/// Test that invoking `set` on a constant is an error, even if you
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/// don't change the value.
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#[test]
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#[should_panic]
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fn set_after_constant_same_value() {
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let db = &mut TestContextImpl::default();
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db.query_mut(ConstantsInputQuery).set_constant('a', 44);
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db.query_mut(ConstantsInputQuery).set('a', 44);
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}
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#[test]
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fn not_constant() {
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let db = &mut TestContextImpl::default();
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db.query_mut(ConstantsInputQuery).set('a', 22);
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db.query_mut(ConstantsInputQuery).set('b', 44);
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assert_eq!(db.constants_add(('a', 'b')), 66);
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assert!(!db.query(ConstantsAddQuery).is_constant(('a', 'b')));
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}
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#[test]
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fn is_constant() {
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let db = &mut TestContextImpl::default();
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db.query_mut(ConstantsInputQuery).set_constant('a', 22);
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db.query_mut(ConstantsInputQuery).set_constant('b', 44);
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assert_eq!(db.constants_add(('a', 'b')), 66);
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assert!(db.query(ConstantsAddQuery).is_constant(('a', 'b')));
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}
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#[test]
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fn mixed_constant() {
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let db = &mut TestContextImpl::default();
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db.query_mut(ConstantsInputQuery).set_constant('a', 22);
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db.query_mut(ConstantsInputQuery).set('b', 44);
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assert_eq!(db.constants_add(('a', 'b')), 66);
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assert!(!db.query(ConstantsAddQuery).is_constant(('a', 'b')));
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}
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#[test]
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fn becomes_constant_with_change() {
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let db = &mut TestContextImpl::default();
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db.query_mut(ConstantsInputQuery).set('a', 22);
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db.query_mut(ConstantsInputQuery).set('b', 44);
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assert_eq!(db.constants_add(('a', 'b')), 66);
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assert!(!db.query(ConstantsAddQuery).is_constant(('a', 'b')));
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db.query_mut(ConstantsInputQuery).set_constant('a', 23);
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assert_eq!(db.constants_add(('a', 'b')), 67);
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assert!(!db.query(ConstantsAddQuery).is_constant(('a', 'b')));
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db.query_mut(ConstantsInputQuery).set_constant('b', 45);
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assert_eq!(db.constants_add(('a', 'b')), 68);
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assert!(db.query(ConstantsAddQuery).is_constant(('a', 'b')));
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}
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