78 lines
2 KiB
Rust
78 lines
2 KiB
Rust
//! ra_db defines basic database traits. Concrete DB is defined by ra_analysis.
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mod cancelation;
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mod syntax_ptr;
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mod input;
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mod loc2id;
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pub mod mock;
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use std::sync::Arc;
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use ra_editor::LineIndex;
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use ra_syntax::{TextUnit, TextRange, SourceFileNode};
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pub use crate::{
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cancelation::{Canceled, Cancelable},
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syntax_ptr::LocalSyntaxPtr,
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input::{
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FilesDatabase, FileId, CrateId, SourceRoot, SourceRootId, CrateGraph, Dependency,
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FileTextQuery, FileSourceRootQuery, SourceRootQuery, LocalRootsQuery, LibraryRootsQuery, CrateGraphQuery,
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FileRelativePathQuery
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},
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loc2id::{LocationIntener, NumericId},
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};
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#[macro_export]
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macro_rules! impl_numeric_id {
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($id:ident) => {
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impl $crate::NumericId for $id {
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fn from_u32(id: u32) -> Self {
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$id(id)
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}
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fn to_u32(self) -> u32 {
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self.0
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}
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}
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};
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}
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pub trait BaseDatabase: salsa::Database {
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fn check_canceled(&self) -> Cancelable<()> {
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if self.salsa_runtime().is_current_revision_canceled() {
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Err(Canceled::new())
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} else {
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Ok(())
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}
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}
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}
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salsa::query_group! {
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pub trait SyntaxDatabase: crate::input::FilesDatabase + BaseDatabase {
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fn source_file(file_id: FileId) -> SourceFileNode {
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type SourceFileQuery;
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}
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fn file_lines(file_id: FileId) -> Arc<LineIndex> {
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type FileLinesQuery;
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}
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}
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}
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fn source_file(db: &impl SyntaxDatabase, file_id: FileId) -> SourceFileNode {
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let text = db.file_text(file_id);
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SourceFileNode::parse(&*text)
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}
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fn file_lines(db: &impl SyntaxDatabase, file_id: FileId) -> Arc<LineIndex> {
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let text = db.file_text(file_id);
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Arc::new(LineIndex::new(&*text))
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}
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#[derive(Clone, Copy, Debug)]
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pub struct FilePosition {
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pub file_id: FileId,
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pub offset: TextUnit,
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}
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#[derive(Clone, Copy, Debug)]
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pub struct FileRange {
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pub file_id: FileId,
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pub range: TextRange,
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}
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