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|
//! Database used for testing `hir`.
use std::{panic, sync::Arc};
use hir_def::{db::DefDatabase2, ModuleId};
use hir_expand::diagnostics::DiagnosticSink;
use parking_lot::Mutex;
use ra_db::{salsa, CrateId, FileId, FileLoader, FileLoaderDelegate, RelativePath, SourceDatabase};
use crate::{db, debug::HirDebugHelper};
#[salsa::database(
ra_db::SourceDatabaseExtStorage,
ra_db::SourceDatabaseStorage,
db::InternDatabaseStorage,
db::AstDatabaseStorage,
db::DefDatabaseStorage,
db::DefDatabase2Storage,
db::HirDatabaseStorage
)]
#[derive(Debug, Default)]
pub struct TestDB {
events: Mutex<Option<Vec<salsa::Event<TestDB>>>>,
runtime: salsa::Runtime<TestDB>,
}
impl salsa::Database for TestDB {
fn salsa_runtime(&self) -> &salsa::Runtime<TestDB> {
&self.runtime
}
fn salsa_event(&self, event: impl Fn() -> salsa::Event<TestDB>) {
let mut events = self.events.lock();
if let Some(events) = &mut *events {
events.push(event());
}
}
}
impl salsa::ParallelDatabase for TestDB {
fn snapshot(&self) -> salsa::Snapshot<TestDB> {
salsa::Snapshot::new(TestDB {
events: Default::default(),
runtime: self.runtime.snapshot(self),
})
}
}
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_relative_path(
&self,
anchor: FileId,
relative_path: &RelativePath,
) -> Option<FileId> {
FileLoaderDelegate(self).resolve_relative_path(anchor, relative_path)
}
fn relevant_crates(&self, file_id: FileId) -> Arc<Vec<CrateId>> {
FileLoaderDelegate(self).relevant_crates(file_id)
}
}
// FIXME: improve `WithFixture` to bring useful hir debugging back
impl HirDebugHelper for TestDB {
fn crate_name(&self, _krate: CrateId) -> Option<String> {
None
}
fn file_path(&self, _file_id: FileId) -> Option<String> {
None
}
}
impl TestDB {
pub fn diagnostics(&self) -> String {
let mut buf = String::new();
let crate_graph = self.crate_graph();
for krate in crate_graph.iter().next() {
let crate_def_map = self.crate_def_map(krate);
for (module_id, _) in crate_def_map.modules.iter() {
let module_id = ModuleId { krate, module_id };
let module = crate::Module::from(module_id);
module.diagnostics(
self,
&mut DiagnosticSink::new(|d| {
buf += &format!("{:?}: {}\n", d.syntax_node(self).text(), d.message());
}),
)
}
}
buf
}
}
impl TestDB {
pub fn log(&self, f: impl FnOnce()) -> Vec<salsa::Event<TestDB>> {
*self.events.lock() = Some(Vec::new());
f();
self.events.lock().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))
}
_ => None,
})
.collect()
}
}
|
