Remove match_armlist validator

crates/ra_syntax/src/validation.rs

@@ -3,7 +3,6 @@ mod byte_string;
 mod char;
 mod string;
 mod block;
-mod match_armlist;
 
 use crate::{
     SourceFile, syntax_node::SyntaxError, AstNode,
@@ -20,7 +19,6 @@ pub(crate) fn validate(file: &SourceFile) -> Vec<SyntaxError> {
             .visit::<ast::Char, _>(self::char::validate_char_node)
             .visit::<ast::String, _>(self::string::validate_string_node)
             .visit::<ast::Block, _>(self::block::validate_block_node)
-            .visit::<ast::MatchArmList, _>(self::match_armlist::validate_match_armlist)
             .accept(node);
     }
     errors

crates/ra_syntax/src/validation/match_armlist.rs

@@ -1,28 +0,0 @@
-use crate::{
-    ast::{self, AttrsOwner, AstNode},
-    syntax_node::{
-        SyntaxError,
-        SyntaxErrorKind::*,
-        Direction,
-    },
-};
-
-pub(crate) fn validate_match_armlist(node: &ast::MatchArmList, errors: &mut Vec<SyntaxError>) {
-    // Report errors for any inner attribute
-    // which has a preceding matcharm or an outer attribute
-    for inner_attr in node.attrs().filter(|s| s.is_inner()) {
-        let any_errors = inner_attr.syntax().siblings(Direction::Prev).any(|s| {
-            match (ast::MatchArm::cast(s), ast::Attr::cast(s)) {
-                (Some(_), _) => true,
-                // Outer attributes which preceed an inner attribute are not allowed
-                (_, Some(a)) if !a.is_inner() => true,
-                (_, Some(_)) => false,
-                (None, None) => false,
-            }
-        });
-
-        if any_errors {
-            errors.push(SyntaxError::new(InvalidMatchInnerAttr, inner_attr.syntax().range()));
-        }
-    }
-}