remove unneeded pattern matching

lqd · compiler-errors · commit 7ce75221a311 · 2024-05-14T09:42:06.000-04:00
diff --git a/crates/formality-types/src/grammar/ty/parse_impls.rs b/crates/formality-types/src/grammar/ty/parse_impls.rs
@@ -110,7 +110,7 @@ impl CoreParse<Rust> for AliasTy {
 fn parse_parameters<'t>(
     p: &mut ActiveVariant<'_, 't, Rust>,
 ) -> Result<Vec<Parameter>, Set<ParseError<'t>>> {
-    if let Err(_) = p.expect_char('<') {
+    if p.expect_char('<').is_err() {
         return Ok(vec![]);
     }
     let parameters: Vec<Parameter> = p.comma_nonterminal()?;

Original file line number	Diff line number	Diff line change
`@@ -110,7 +110,7 @@ impl CoreParse<Rust> for AliasTy {`
`110`	`110`	`fn parse_parameters<'t>(`
`111`	`111`	`p: &mut ActiveVariant<'_, 't, Rust>,`
`112`	`112`	`) -> Result<Vec<Parameter>, Set<ParseError<'t>>> {`
`113`		`- if let Err(_) = p.expect_char('<') {`
	`113`	`+ if p.expect_char('<').is_err() {`
`114`	`114`	`return Ok(vec![]);`
`115`	`115`	`}`
`116`	`116`	`let parameters: Vec<Parameter> = p.comma_nonterminal()?;`