73 lines
2 KiB
Rust
73 lines
2 KiB
Rust
use std::sync::Arc;
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use rustc_hash::FxHashMap;
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use rustc_hash::FxHashSet;
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use salsa;
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use crate::file_resolver::FileResolverImp;
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#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
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pub struct FileId(pub u32);
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#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
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pub struct CrateId(pub u32);
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#[derive(Debug, Clone, Default, PartialEq, Eq)]
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pub struct CrateGraph {
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crate_roots: FxHashMap<CrateId, FileId>,
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}
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impl CrateGraph {
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pub fn crate_root(&self, crate_id: CrateId) -> FileId {
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self.crate_roots[&crate_id]
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}
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pub fn add_crate_root(&mut self, file_id: FileId) -> CrateId {
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let crate_id = CrateId(self.crate_roots.len() as u32);
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let prev = self.crate_roots.insert(crate_id, file_id);
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assert!(prev.is_none());
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crate_id
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}
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pub fn crate_id_for_crate_root(&self, file_id: FileId) -> Option<CrateId> {
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let (&crate_id, _) = self
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.crate_roots
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.iter()
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.find(|(_crate_id, &root_id)| root_id == file_id)?;
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Some(crate_id)
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}
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}
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salsa::query_group! {
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pub trait FilesDatabase: salsa::Database {
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fn file_text(file_id: FileId) -> Arc<String> {
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type FileTextQuery;
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storage input;
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}
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fn file_source_root(file_id: FileId) -> SourceRootId {
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type FileSourceRootQuery;
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storage input;
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}
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fn source_root(id: SourceRootId) -> Arc<SourceRoot> {
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type SourceRootQuery;
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storage input;
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}
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fn libraries() -> Arc<Vec<SourceRootId>> {
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type LibrariesQuery;
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storage input;
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}
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fn crate_graph() -> Arc<CrateGraph> {
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type CrateGraphQuery;
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storage input;
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}
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}
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}
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#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
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pub struct SourceRootId(pub u32);
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#[derive(Default, Clone, Debug, PartialEq, Eq)]
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pub struct SourceRoot {
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pub file_resolver: FileResolverImp,
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pub files: FxHashSet<FileId>,
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}
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pub const WORKSPACE: SourceRootId = SourceRootId(0);
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