Rename ra_db -> base_db

1 files changed, 0 insertions, 167 deletions

diff --git a/crates/ra_db/src/lib.rs b/crates/ra_db/src/lib.rs
deleted file mode 100644
index 73ac243d6..000000000
--- a/crates/ra_db/src/lib.rs
+++ /dev/null
@@ -1,167 +0,0 @@
-//! ra_db defines basic database traits. The concrete DB is defined by ra_ide.
-mod cancellation;
-mod input;
-pub mod fixture;
-
-use std::{panic, sync::Arc};
-
-use rustc_hash::FxHashSet;
-use syntax::{ast, Parse, SourceFile, TextRange, TextSize};
-
-pub use crate::{
-    cancellation::Canceled,
-    input::{
-        CrateData, CrateGraph, CrateId, CrateName, Dependency, Edition, Env, FileId, ProcMacroId,
-        SourceRoot, SourceRootId,
-    },
-};
-pub use salsa;
-pub use vfs::{file_set::FileSet, VfsPath};
-
-#[macro_export]
-macro_rules! impl_intern_key {
-    ($name:ident) => {
-        impl $crate::salsa::InternKey for $name {
-            fn from_intern_id(v: $crate::salsa::InternId) -> Self {
-                $name(v)
-            }
-            fn as_intern_id(&self) -> $crate::salsa::InternId {
-                self.0
-            }
-        }
-    };
-}
-
-pub trait Upcast<T: ?Sized> {
-    fn upcast(&self) -> &T;
-}
-
-pub trait CheckCanceled {
-    /// Aborts current query if there are pending changes.
-    ///
-    /// rust-analyzer needs to be able to answer semantic questions about the
-    /// code while the code is being modified. A common problem is that a
-    /// long-running query is being calculated when a new change arrives.
-    ///
-    /// We can't just apply the change immediately: this will cause the pending
-    /// query to see inconsistent state (it will observe an absence of
-    /// repeatable read). So what we do is we **cancel** all pending queries
-    /// before applying the change.
-    ///
-    /// We implement cancellation by panicking with a special value and catching
-    /// it on the API boundary. Salsa explicitly supports this use-case.
-    fn check_canceled(&self);
-
-    fn catch_canceled<F, T>(&self, f: F) -> Result<T, Canceled>
-    where
-        Self: Sized + panic::RefUnwindSafe,
-        F: FnOnce(&Self) -> T + panic::UnwindSafe,
-    {
-        panic::catch_unwind(|| f(self)).map_err(|err| match err.downcast::<Canceled>() {
-            Ok(canceled) => *canceled,
-            Err(payload) => panic::resume_unwind(payload),
-        })
-    }
-}
-
-impl<T: salsa::Database> CheckCanceled for T {
-    fn check_canceled(&self) {
-        if self.salsa_runtime().is_current_revision_canceled() {
-            Canceled::throw()
-        }
-    }
-}
-
-#[derive(Clone, Copy, Debug)]
-pub struct FilePosition {
-    pub file_id: FileId,
-    pub offset: TextSize,
-}
-
-#[derive(Clone, Copy, Debug, Eq, PartialEq)]
-pub struct FileRange {
-    pub file_id: FileId,
-    pub range: TextRange,
-}
-
-pub const DEFAULT_LRU_CAP: usize = 128;
-
-pub trait FileLoader {
-    /// Text of the file.
-    fn file_text(&self, file_id: FileId) -> Arc<String>;
-    /// Note that we intentionally accept a `&str` and not a `&Path` here. This
-    /// method exists to handle `#[path = "/some/path.rs"] mod foo;` and such,
-    /// so the input is guaranteed to be utf-8 string. One might be tempted to
-    /// introduce some kind of "utf-8 path with / separators", but that's a bad idea. Behold
-    /// `#[path = "C://no/way"]`
-    fn resolve_path(&self, anchor: FileId, path: &str) -> Option<FileId>;
-    fn relevant_crates(&self, file_id: FileId) -> Arc<FxHashSet<CrateId>>;
-}
-
-/// Database which stores all significant input facts: source code and project
-/// model. Everything else in rust-analyzer is derived from these queries.
-#[salsa::query_group(SourceDatabaseStorage)]
-pub trait SourceDatabase: CheckCanceled + FileLoader + std::fmt::Debug {
-    // Parses the file into the syntax tree.
-    #[salsa::invoke(parse_query)]
-    fn parse(&self, file_id: FileId) -> Parse<ast::SourceFile>;
-
-    /// The crate graph.
-    #[salsa::input]
-    fn crate_graph(&self) -> Arc<CrateGraph>;
-}
-
-fn parse_query(db: &dyn SourceDatabase, file_id: FileId) -> Parse<ast::SourceFile> {
-    let _p = profile::span("parse_query").detail(|| format!("{:?}", file_id));
-    let text = db.file_text(file_id);
-    SourceFile::parse(&*text)
-}
-
-/// We don't want to give HIR knowledge of source roots, hence we extract these
-/// methods into a separate DB.
-#[salsa::query_group(SourceDatabaseExtStorage)]
-pub trait SourceDatabaseExt: SourceDatabase {
-    #[salsa::input]
-    fn file_text(&self, file_id: FileId) -> Arc<String>;
-    /// Path to a file, relative to the root of its source root.
-    /// Source root of the file.
-    #[salsa::input]
-    fn file_source_root(&self, file_id: FileId) -> SourceRootId;
-    /// Contents of the source root.
-    #[salsa::input]
-    fn source_root(&self, id: SourceRootId) -> Arc<SourceRoot>;
-
-    fn source_root_crates(&self, id: SourceRootId) -> Arc<FxHashSet<CrateId>>;
-}
-
-fn source_root_crates(db: &dyn SourceDatabaseExt, id: SourceRootId) -> Arc<FxHashSet<CrateId>> {
-    let graph = db.crate_graph();
-    let res = graph
-        .iter()
-        .filter(|&krate| {
-            let root_file = graph[krate].root_file_id;
-            db.file_source_root(root_file) == id
-        })
-        .collect::<FxHashSet<_>>();
-    Arc::new(res)
-}
-
-/// Silly workaround for cyclic deps between the traits
-pub struct FileLoaderDelegate<T>(pub T);
-
-impl<T: SourceDatabaseExt> FileLoader for FileLoaderDelegate<&'_ T> {
-    fn file_text(&self, file_id: FileId) -> Arc<String> {
-        SourceDatabaseExt::file_text(self.0, file_id)
-    }
-    fn resolve_path(&self, anchor: FileId, path: &str) -> Option<FileId> {
-        // FIXME: this *somehow* should be platform agnostic...
-        let source_root = self.0.file_source_root(anchor);
-        let source_root = self.0.source_root(source_root);
-        source_root.file_set.resolve_path(anchor, path)
-    }
-
-    fn relevant_crates(&self, file_id: FileId) -> Arc<FxHashSet<CrateId>> {
-        let source_root = self.0.file_source_root(file_id);
-        self.0.source_root_crates(source_root)
-    }
-}