Added fixup for match statements w/ missing parts
Passes tests
@@ -67,7 +67,6 @@ pub(crate) fn fixup_syntax(node: &SyntaxNode) -> SyntaxFixups {
preorder.skip_subtree();
continue;
}
-
// In some other situations, we can fix things by just appending some tokens.
let end_range = TextRange::empty(node.text_range().end());
match_ast! {
@@ -195,6 +194,69 @@ pub(crate) fn fixup_syntax(node: &SyntaxNode) -> SyntaxFixups {
},
// FIXME: foo::
// FIXME: for, match etc.
+ ast::MatchExpr(it) => {
+ if it.expr().is_none() {
+ let match_token = match it.match_token() {
+ Some(t) => t,
+ None => continue
+ };
+ append.insert(match_token.into(), vec![
+ SyntheticToken {
+ kind: SyntaxKind::IDENT,
+ text: "__ra_fixup".into(),
+ range: end_range,
+ id: EMPTY_ID
+ },
+ ]);
+ }
+ if it.match_arm_list().is_none() {
+ // No match arms
+ append.insert(node.clone().into(), vec![
+ SyntheticToken {
+ kind: SyntaxKind::L_CURLY,
+ text: "{".into(),
+ range: end_range,
+ id: EMPTY_ID,
+ },
+ SyntheticToken {
+ kind: SyntaxKind::UNDERSCORE,
+ text: "_".into(),
+ range: end_range,
+ id: EMPTY_ID
+ },
+ SyntheticToken {
+ kind: SyntaxKind::EQ,
+ text: "=".into(),
+ range: end_range,
+ id: EMPTY_ID
+ },
+ SyntheticToken {
+ kind: SyntaxKind::R_ANGLE,
+ text: ">".into(),
+ range: end_range,
+ id: EMPTY_ID
+ },
+ SyntheticToken {
+ kind: SyntaxKind::L_CURLY,
+ text: "{".into(),
+ range: end_range,
+ id: EMPTY_ID,
+ },
+ SyntheticToken {
+ kind: SyntaxKind::R_CURLY,
+ text: "}".into(),
+ range: end_range,
+ id: EMPTY_ID,
+ },
+ SyntheticToken {
+ kind: SyntaxKind::R_CURLY,
+ text: "}".into(),
+ range: end_range,
+ id: EMPTY_ID,
+ },
+ ]);
+ }
+ },
_ => (),
}
}
@@ -287,6 +349,53 @@ mod tests {
assert_eq!(tt.to_string(), original_as_tt.to_string());
}
+
+ #[test]
+ fn match_no_expr_no_arms() {
+ check(
+ r#"
+fn foo() {
+ match
+}
+"#,
+ expect![[r#"
+fn foo () {match __ra_fixup {_ => {}}}
+"#]],
+ )
+ }
+
+ #[test]
+ fn match_expr_no_arms() {
+ check(
+ r#"
+fn foo() {
+ match x {
+
+ }
+}
+"#,
+ expect![[r#"
+fn foo () {match x {}}
+"#]],
+ )
+ }
+
+ #[test]
+ fn match_no_expr() {
+ check(
+ r#"
+fn foo() {
+ match {
+ _ => {}
+ }
+}
+"#,
+ expect![[r#"
+fn foo () {match __ra_fixup {_ => {}}}
+"#]],
+ )
+ }
+
#[test]
fn incomplete_field_expr_1() {
check(
