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|
//! Database used for testing `hir_def`.
use std::{
fmt, panic,
sync::{Arc, Mutex},
};
use base_db::{salsa, CrateId, FileId, FileLoader, FileLoaderDelegate, Upcast};
use hir_expand::db::AstDatabase;
use rustc_hash::FxHashSet;
use crate::db::DefDatabase;
#[salsa::database(
base_db::SourceDatabaseExtStorage,
base_db::SourceDatabaseStorage,
hir_expand::db::AstDatabaseStorage,
crate::db::InternDatabaseStorage,
crate::db::DefDatabaseStorage
)]
#[derive(Default)]
pub struct TestDB {
storage: salsa::Storage<TestDB>,
events: Mutex<Option<Vec<salsa::Event>>>,
}
impl Upcast<dyn AstDatabase> for TestDB {
fn upcast(&self) -> &(dyn AstDatabase + 'static) {
&*self
}
}
impl Upcast<dyn DefDatabase> for TestDB {
fn upcast(&self) -> &(dyn DefDatabase + 'static) {
&*self
}
}
impl salsa::Database for TestDB {
fn salsa_event(&self, event: salsa::Event) {
let mut events = self.events.lock().unwrap();
if let Some(events) = &mut *events {
events.push(event);
}
}
}
impl fmt::Debug for TestDB {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("TestDB").finish()
}
}
impl panic::RefUnwindSafe for TestDB {}
impl FileLoader for TestDB {
fn file_text(&self, file_id: FileId) -> Arc<String> {
FileLoaderDelegate(self).file_text(file_id)
}
fn resolve_path(&self, anchor: FileId, path: &str) -> Option<FileId> {
FileLoaderDelegate(self).resolve_path(anchor, path)
}
fn relevant_crates(&self, file_id: FileId) -> Arc<FxHashSet<CrateId>> {
FileLoaderDelegate(self).relevant_crates(file_id)
}
fn possible_sudmobule_names(&self, module_file: FileId) -> Vec<String> {
FileLoaderDelegate(self).possible_sudmobule_names(module_file)
}
}
impl TestDB {
pub fn module_for_file(&self, file_id: FileId) -> crate::ModuleId {
for &krate in self.relevant_crates(file_id).iter() {
let crate_def_map = self.crate_def_map(krate);
for (local_id, data) in crate_def_map.modules.iter() {
if data.origin.file_id() == Some(file_id) {
return crate::ModuleId { krate, local_id };
}
}
}
panic!("Can't find module for file")
}
pub fn log(&self, f: impl FnOnce()) -> Vec<salsa::Event> {
*self.events.lock().unwrap() = Some(Vec::new());
f();
self.events.lock().unwrap().take().unwrap()
}
pub fn log_executed(&self, f: impl FnOnce()) -> Vec<String> {
let events = self.log(f);
events
.into_iter()
.filter_map(|e| match e.kind {
// This pretty horrible, but `Debug` is the only way to inspect
// QueryDescriptor at the moment.
salsa::EventKind::WillExecute { database_key } => {
Some(format!("{:?}", database_key.debug(self)))
}
_ => None,
})
.collect()
}
}
|
