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|
use std::{
fmt,
sync::Arc,
hash::{Hash, Hasher},
collections::HashSet,
};
use salsa;
use ra_syntax::File;
use ra_editor::{LineIndex};
use crate::{
symbol_index::SymbolIndex,
FileId, FileResolverImp
};
#[derive(Default)]
pub(crate) struct RootDatabase {
runtime: salsa::runtime::Runtime<RootDatabase>,
}
impl fmt::Debug for RootDatabase {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
fmt.write_str("RootDatabase { ... }")
}
}
impl salsa::Database for RootDatabase {
fn salsa_runtime(&self) -> &salsa::runtime::Runtime<RootDatabase> {
&self.runtime
}
}
salsa::database_storage! {
pub(crate) struct RootDatabaseStorage for RootDatabase {
impl FilesDatabase {
fn file_text() for FileTextQuery;
fn file_set() for FileSetQuery;
}
impl SyntaxDatabase {
fn file_syntax() for FileSyntaxQuery;
fn file_lines() for FileLinesQuery;
fn file_symbols() for FileSymbolsQuery;
}
}
}
salsa::query_group! {
pub(crate) trait FilesDatabase: salsa::Database {
fn file_text(file_id: FileId) -> Arc<String> {
type FileTextQuery;
storage input;
}
fn file_set(key: ()) -> Arc<FileSet> {
type FileSetQuery;
storage input;
}
}
}
#[derive(Default, Debug)]
pub(crate) struct FileSet {
pub(crate) files: HashSet<FileId>,
pub(crate) resolver: FileResolverImp,
}
impl PartialEq for FileSet {
fn eq(&self, other: &FileSet) -> bool {
self.files == other.files
}
}
impl Eq for FileSet {
}
impl Hash for FileSet {
fn hash<H: Hasher>(&self, hasher: &mut H) {
let mut files = self.files.iter().cloned().collect::<Vec<_>>();
files.sort();
files.hash(hasher);
}
}
salsa::query_group! {
pub(crate) trait SyntaxDatabase: FilesDatabase {
fn file_syntax(file_id: FileId) -> File {
type FileSyntaxQuery;
}
fn file_lines(file_id: FileId) -> Arc<LineIndex> {
type FileLinesQuery;
}
fn file_symbols(file_id: FileId) -> Arc<SymbolIndex> {
type FileSymbolsQuery;
}
}
}
fn file_syntax(db: &impl SyntaxDatabase, file_id: FileId) -> File {
let text = db.file_text(file_id);
File::parse(&*text)
}
fn file_lines(db: &impl SyntaxDatabase, file_id: FileId) -> Arc<LineIndex> {
let text = db.file_text(file_id);
Arc::new(LineIndex::new(&*text))
}
fn file_symbols(db: &impl SyntaxDatabase, file_id: FileId) -> Arc<SymbolIndex> {
let syntax = db.file_syntax(file_id);
Arc::new(SymbolIndex::for_file(file_id, syntax))
}
// mod imp;
// use std::{
// sync::Arc,
// };
// use im;
// use salsa;
// use {FileId, imp::FileResolverImp};
// #[derive(Debug, Default, Clone)]
// pub(crate) struct State {
// pub(crate) file_map: im::HashMap<FileId, Arc<String>>,
// pub(crate) file_resolver: FileResolverImp
// }
// #[derive(Debug)]
// pub(crate) struct Db {
// imp: imp::Db,
// }
// #[derive(Clone, Copy)]
// pub(crate) struct QueryCtx<'a> {
// imp: &'a salsa::QueryCtx<State, imp::Data>,
// }
// pub(crate) struct Query<T, R>(pub(crate) u16, pub(crate) fn(QueryCtx, &T) -> R);
// pub(crate) struct QueryRegistry {
// imp: imp::QueryRegistry,
// }
// impl Default for Db {
// fn default() -> Db {
// Db::new()
// }
// }
// impl Db {
// pub(crate) fn new() -> Db {
// let reg = QueryRegistry::new();
// Db { imp: imp::Db::new(reg.imp) }
// }
// pub(crate) fn state(&self) -> &State {
// self.imp.imp.ground_data()
// }
// pub(crate) fn with_changes(&self, new_state: State, changed_files: &[FileId], resolver_changed: bool) -> Db {
// Db { imp: self.imp.with_changes(new_state, changed_files, resolver_changed) }
// }
// pub(crate) fn make_query<F: FnOnce(QueryCtx) -> R, R>(&self, f: F) -> R {
// let ctx = QueryCtx { imp: &self.imp.imp.query_ctx() };
// f(ctx)
// }
// #[allow(unused)]
// pub(crate) fn trace_query<F: FnOnce(QueryCtx) -> R, R>(&self, f: F) -> (R, Vec<&'static str>) {
// let ctx = QueryCtx { imp: &self.imp.imp.query_ctx() };
// let res = f(ctx);
// let trace = self.imp.extract_trace(ctx.imp);
// (res, trace)
// }
// }
// impl<'a> QueryCtx<'a> {
// pub(crate) fn get<Q: imp::EvalQuery>(&self, q: Q, params: Q::Params) -> Arc<Q::Output> {
// q.get(self, params)
// }
// }
// pub(crate) fn file_text(ctx: QueryCtx, file_id: FileId) -> Arc<String> {
// imp::file_text(ctx, file_id)
// }
// pub(crate) fn file_set(ctx: QueryCtx) -> Arc<(Vec<FileId>, FileResolverImp)> {
// imp::file_set(ctx)
// }
// impl QueryRegistry {
// fn new() -> QueryRegistry {
// let mut reg = QueryRegistry { imp: imp::QueryRegistry::new() };
// ::queries::register_queries(&mut reg);
// ::module_map::register_queries(&mut reg);
// reg
// }
// pub(crate) fn add<Q: imp::EvalQuery>(&mut self, q: Q, name: &'static str) {
// self.imp.add(q, name)
// }
// }
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