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//! ra_db defines basic database traits. Concrete DB is defined by ra_ide_api.
mod cancelation;
mod syntax_ptr;
mod input;
mod loc2id;
pub mod mock;
use ra_syntax::{TextUnit, TextRange, SourceFile, TreePtr};
pub use crate::{
cancelation::{Canceled, Cancelable},
syntax_ptr::LocalSyntaxPtr,
input::{
FilesDatabase, FileId, CrateId, SourceRoot, SourceRootId, CrateGraph, Dependency,
FileTextQuery, FileSourceRootQuery, SourceRootQuery, LocalRootsQuery, LibraryRootsQuery, CrateGraphQuery,
FileRelativePathQuery
},
loc2id::LocationIntener,
};
pub trait BaseDatabase: salsa::Database {
fn check_canceled(&self) -> Cancelable<()> {
if self.salsa_runtime().is_current_revision_canceled() {
Err(Canceled::new())
} else {
Ok(())
}
}
}
salsa::query_group! {
pub trait SyntaxDatabase: crate::input::FilesDatabase + BaseDatabase {
fn source_file(file_id: FileId) -> TreePtr<SourceFile> {
type SourceFileQuery;
}
}
}
fn source_file(db: &impl SyntaxDatabase, file_id: FileId) -> TreePtr<SourceFile> {
let text = db.file_text(file_id);
SourceFile::parse(&*text)
}
#[derive(Clone, Copy, Debug)]
pub struct FilePosition {
pub file_id: FileId,
pub offset: TextUnit,
}
#[derive(Clone, Copy, Debug)]
pub struct FileRange {
pub file_id: FileId,
pub range: TextRange,
}
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