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|
use std::sync::Arc;
use base_db::{salsa::SweepStrategy, SourceDatabaseExt};
use crate::{AdtId, ModuleDefId};
use super::*;
fn check_def_map_is_not_recomputed(ra_fixture_initial: &str, ra_fixture_change: &str) {
let (mut db, pos) = TestDB::with_position(ra_fixture_initial);
let krate = db.test_crate();
{
let events = db.log_executed(|| {
db.crate_def_map(krate);
});
assert!(format!("{:?}", events).contains("crate_def_map"), "{:#?}", events)
}
db.set_file_text(pos.file_id, Arc::new(ra_fixture_change.to_string()));
{
let events = db.log_executed(|| {
db.crate_def_map(krate);
});
assert!(!format!("{:?}", events).contains("crate_def_map"), "{:#?}", events)
}
}
#[test]
fn typing_inside_a_function_should_not_invalidate_def_map() {
check_def_map_is_not_recomputed(
r"
//- /lib.rs
mod foo;$0
use crate::foo::bar::Baz;
enum E { A, B }
use E::*;
fn foo() -> i32 {
1 + 1
}
#[cfg(never)]
fn no() {}
//- /foo/mod.rs
pub mod bar;
//- /foo/bar.rs
pub struct Baz;
",
r"
mod foo;
use crate::foo::bar::Baz;
enum E { A, B }
use E::*;
fn foo() -> i32 { 92 }
#[cfg(never)]
fn no() {}
",
);
}
#[test]
fn typing_inside_a_macro_should_not_invalidate_def_map() {
let (mut db, pos) = TestDB::with_position(
r"
//- /lib.rs
macro_rules! m {
($ident:ident) => {
fn f() {
$ident + $ident;
};
}
}
mod foo;
//- /foo/mod.rs
pub mod bar;
//- /foo/bar.rs
$0
m!(X);
",
);
let krate = db.test_crate();
{
let events = db.log_executed(|| {
let crate_def_map = db.crate_def_map(krate);
let (_, module_data) = crate_def_map.modules.iter().last().unwrap();
assert_eq!(module_data.scope.resolutions().count(), 1);
});
assert!(format!("{:?}", events).contains("crate_def_map"), "{:#?}", events)
}
db.set_file_text(pos.file_id, Arc::new("m!(Y);".to_string()));
{
let events = db.log_executed(|| {
let crate_def_map = db.crate_def_map(krate);
let (_, module_data) = crate_def_map.modules.iter().last().unwrap();
assert_eq!(module_data.scope.resolutions().count(), 1);
});
assert!(!format!("{:?}", events).contains("crate_def_map"), "{:#?}", events)
}
}
#[test]
fn typing_inside_a_function_should_not_invalidate_expansions() {
let (mut db, pos) = TestDB::with_position(
r#"
//- /lib.rs
macro_rules! m {
($ident:ident) => {
fn $ident() { };
}
}
mod foo;
//- /foo/mod.rs
pub mod bar;
//- /foo/bar.rs
m!(X);
fn quux() { 1$0 }
m!(Y);
m!(Z);
"#,
);
let krate = db.test_crate();
{
let events = db.log_executed(|| {
let crate_def_map = db.crate_def_map(krate);
let (_, module_data) = crate_def_map.modules.iter().last().unwrap();
assert_eq!(module_data.scope.resolutions().count(), 4);
});
let n_recalculated_item_trees = events.iter().filter(|it| it.contains("item_tree")).count();
assert_eq!(n_recalculated_item_trees, 6);
let n_reparsed_macros =
events.iter().filter(|it| it.contains("parse_macro_expansion")).count();
assert_eq!(n_reparsed_macros, 3);
}
let new_text = r#"
m!(X);
fn quux() { 92 }
m!(Y);
m!(Z);
"#;
db.set_file_text(pos.file_id, Arc::new(new_text.to_string()));
{
let events = db.log_executed(|| {
let crate_def_map = db.crate_def_map(krate);
let (_, module_data) = crate_def_map.modules.iter().last().unwrap();
assert_eq!(module_data.scope.resolutions().count(), 4);
});
let n_recalculated_item_trees = events.iter().filter(|it| it.contains("item_tree")).count();
assert_eq!(n_recalculated_item_trees, 1);
let n_reparsed_macros =
events.iter().filter(|it| it.contains("parse_macro_expansion")).count();
assert_eq!(n_reparsed_macros, 0);
}
}
#[test]
fn item_tree_prevents_reparsing() {
// The `ItemTree` is used by both name resolution and the various queries in `adt.rs` and
// `data.rs`. After computing the `ItemTree` and deleting the parse tree, we should be able to
// run those other queries without triggering a reparse.
let (db, pos) = TestDB::with_position(
r#"
pub struct S;
pub union U {}
pub enum E {
Variant,
}
pub fn f(_: S) { $0 }
pub trait Tr {}
impl Tr for () {}
pub const C: u8 = 0;
pub static ST: u8 = 0;
pub type Ty = ();
"#,
);
let krate = db.test_crate();
{
let events = db.log_executed(|| {
db.file_item_tree(pos.file_id.into());
});
let n_calculated_item_trees = events.iter().filter(|it| it.contains("item_tree")).count();
assert_eq!(n_calculated_item_trees, 1);
let n_parsed_files = events.iter().filter(|it| it.contains("parse(")).count();
assert_eq!(n_parsed_files, 1);
}
// Delete the parse tree.
let sweep = SweepStrategy::default().discard_values().sweep_all_revisions();
base_db::ParseQuery.in_db(&db).sweep(sweep);
{
let events = db.log_executed(|| {
let crate_def_map = db.crate_def_map(krate);
let (_, module_data) = crate_def_map.modules.iter().last().unwrap();
assert_eq!(module_data.scope.resolutions().count(), 8);
assert_eq!(module_data.scope.impls().count(), 1);
for imp in module_data.scope.impls() {
db.impl_data(imp);
}
for (_, res) in module_data.scope.resolutions() {
match res.values.or(res.types).unwrap().0 {
ModuleDefId::FunctionId(f) => drop(db.function_data(f)),
ModuleDefId::AdtId(adt) => match adt {
AdtId::StructId(it) => drop(db.struct_data(it)),
AdtId::UnionId(it) => drop(db.union_data(it)),
AdtId::EnumId(it) => drop(db.enum_data(it)),
},
ModuleDefId::ConstId(it) => drop(db.const_data(it)),
ModuleDefId::StaticId(it) => drop(db.static_data(it)),
ModuleDefId::TraitId(it) => drop(db.trait_data(it)),
ModuleDefId::TypeAliasId(it) => drop(db.type_alias_data(it)),
ModuleDefId::EnumVariantId(_)
| ModuleDefId::ModuleId(_)
| ModuleDefId::BuiltinType(_) => unreachable!(),
}
}
});
let n_reparsed_files = events.iter().filter(|it| it.contains("parse(")).count();
assert_eq!(n_reparsed_files, 0);
}
}
|
