Reserve appropriate number of tuple labels

brendanzab · brendanzab · commit c6f3b7df9d55 · 2023-01-10T13:13:16.000+11:00
The upper bound of the range is exclusive, but the reserve function is
inclusive.
diff --git a/fathom/src/source.rs b/fathom/src/source.rs
@@ -101,7 +101,7 @@ impl StringInterner {
 
     /// Get or intern a slice of strings in the form `_{index}` for each index in `range`.
     pub fn get_tuple_labels(&mut self, range: Range<usize>) -> &[StringId] {
-        self.reserve_tuple_labels(range.end);
+        self.reserve_tuple_labels(range.end.saturating_sub(1));
         &self.tuple_labels[range]
     }
 

Original file line number	Diff line number	Diff line change
`@@ -101,7 +101,7 @@ impl StringInterner {`
`101`	`101`
`102`	`102`	/// Get or intern a slice of strings in the form `_{index}` for each index in `range`.
`103`	`103`	`pub fn get_tuple_labels(&mut self, range: Range<usize>) -> &[StringId] {`
`104`		`- self.reserve_tuple_labels(range.end);`
	`104`	`+ self.reserve_tuple_labels(range.end.saturating_sub(1));`
`105`	`105`	`&self.tuple_labels[range]`
`106`	`106`	`}`
`107`	`107`