diff options
Diffstat (limited to 'crates')
-rw-r--r-- | crates/ra_hir/src/lib.rs | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/crates/ra_hir/src/lib.rs b/crates/ra_hir/src/lib.rs index 578fde259..760524f6b 100644 --- a/crates/ra_hir/src/lib.rs +++ b/crates/ra_hir/src/lib.rs | |||
@@ -139,12 +139,21 @@ impl SourceFileItems { | |||
139 | self.id_of_unchecked(item) | 139 | self.id_of_unchecked(item) |
140 | } | 140 | } |
141 | fn id_of_unchecked(&self, item: SyntaxNodeRef) -> SourceFileItemId { | 141 | fn id_of_unchecked(&self, item: SyntaxNodeRef) -> SourceFileItemId { |
142 | let (id, _item) = self | 142 | if let Some((id, _)) = self.arena.iter().find(|(_id, i)| i.borrowed() == item) { |
143 | .arena | 143 | return id; |
144 | .iter() | 144 | } |
145 | .find(|(_id, i)| i.borrowed() == item) | 145 | // This should not happen. Let's try to give a sensible diagnostics. |
146 | .unwrap(); | 146 | if let Some((_, i)) = self.arena.iter().find(|(_id, i)| i.range() == item.range()) { |
147 | id | 147 | panic!( |
148 | "unequal syntax nodes with the same range:\n{:?}\n{:?}", | ||
149 | item, i | ||
150 | ) | ||
151 | } | ||
152 | panic!( | ||
153 | "Can't find {:?} in SourceFileItems:\n{:?}", | ||
154 | item, | ||
155 | self.arena.iter().map(|(_id, i)| i).collect::<Vec<_>>(), | ||
156 | ); | ||
148 | } | 157 | } |
149 | pub fn id_of_source_file(&self) -> SourceFileItemId { | 158 | pub fn id_of_source_file(&self) -> SourceFileItemId { |
150 | let (id, _syntax) = self.arena.iter().next().unwrap(); | 159 | let (id, _syntax) = self.arena.iter().next().unwrap(); |