initialize vector to required size.

ericsampson · ericsampson · commit 160a7b097a1b · 2021-10-04T16:14:01.000-05:00
diff --git a/crates/ide/src/annotations.rs b/crates/ide/src/annotations.rs
@@ -116,7 +116,7 @@ pub(crate) fn annotations(
             }
 
             if config.annotate_enum_variant_references {
-                let mut enum_variants_metadata: Vec<(TextRange, TextSize)> = Vec::new();
+                let mut enum_variants_metadata: Vec<(TextRange, TextSize)> = Vec::with_capacity(ranges_enum_variants.len());
                 for range_enum_variant in ranges_enum_variants.into_iter() {
                     let (range, offset) = match range_enum_variant {
                         Some(range) => (range, range.start()),

Original file line number	Diff line number	Diff line change
`@@ -116,7 +116,7 @@ pub(crate) fn annotations(`
`116`	`116`	`}`
`117`	`117`
`118`	`118`	`if config.annotate_enum_variant_references {`
`119`		`- let mut enum_variants_metadata: Vec<(TextRange, TextSize)> = Vec::new();`
	`119`	`+ let mut enum_variants_metadata: Vec<(TextRange, TextSize)> = Vec::with_capacity(ranges_enum_variants.len());`
`120`	`120`	`for range_enum_variant in ranges_enum_variants.into_iter() {`
`121`	`121`	`let (range, offset) = match range_enum_variant {`
`122`	`122`	`Some(range) => (range, range.start()),`