Updated pattern ast

crates/parser/src/ast/expr.rs

@@ -36,7 +36,7 @@ pub enum Pattern {
     Struct(Path, Vec<Identifier>),
     Tuple(Vec<Identifier>),
     Literal(Literal),
-    Path(Path),
+    Path(bool, Path),
     Id(Identifier),
 }
 

crates/parser/src/grammar.pest

@@ -135,7 +135,7 @@ literal = {
 // ======================================================
 
 multi_pat_template = _{
-    "[" ~ (identifier ~ ("," ~ identifier)*)? ~ "]"
+    (identifier ~ ("," ~ identifier)*)?
 }
 
 tuple_pattern = {

crates/parser/src/parser/common/mod.rs

@@ -7,8 +7,8 @@ use crate::{
     Rule,
     ast::*,
     ast_ensure, ast_expr,
-    error::{AstError, IntoErr, collect_recovered},
-    parser::consume_rule,
+    error::{AstError, AstResult, IntoErr, collect_recovered},
+    parser::{consume_rule, listen_rule},
 };
 
 impl<'a> TryFrom<pest::iterators::Pair<'a, Rule>> for Identifier {
@@ -76,7 +76,10 @@ impl<'a> TryFrom<pest::iterators::Pair<'a, Rule>> for Pattern {
 
             Rule::identifier => ast_expr!(Pattern::Id(pair.try_into())),
 
-            Rule::static_path => ast_expr!(Pattern::Path(pair.try_into())),
+            Rule::path_pattern => ast_expr!(Pattern::Path(
+                Ok(listen_rule(&mut inner, Rule::mutable)) as AstResult<'_, bool>,
+                inner.next().unwrap().try_into()
+            )),
 
             _ => AstError::bug_unimplemented(pair),
         }