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Check Fileid in SourceFileMap

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This commit is contained in:
Aleksey Kladov 2018-12-09 13:18:46 +03:00
parent 13100da7a2
commit 159525b120
5 changed files with 23 additions and 7 deletions
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20
crates/ra_hir/src/lib.rs
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@ -110,16 +110,32 @@ pub struct SourceItemId {
}
/// Maps item's `SyntaxNode`s to `SourceFileItemId` and back.
#[derive(Debug, PartialEq, Eq, Default)]
#[derive(Debug, PartialEq, Eq)]
pub struct SourceFileItems {
file_id: FileId,
arena: Arena<SyntaxNode>,
}
impl SourceFileItems {
fn new(file_id: FileId) -> SourceFileItems {
SourceFileItems {
file_id,
arena: Arena::default(),
}
}
fn alloc(&mut self, item: SyntaxNode) -> SourceFileItemId {
self.arena.alloc(item)
}
pub fn id_of(&self, item: SyntaxNodeRef) -> SourceFileItemId {
pub fn id_of(&self, file_id: FileId, item: SyntaxNodeRef) -> SourceFileItemId {
assert_eq!(
self.file_id, file_id,
"SourceFileItems: wrong file, expected {:?}, got {:?}",
self.file_id, file_id
);
self.id_of_unchecked(item)
}
fn id_of_unchecked(&self, item: SyntaxNodeRef) -> SourceFileItemId {
let (id, _item) = self
.arena
.iter()