Type params parsing

parser/src/ast.rs

@@ -13,7 +13,7 @@ pub struct Block(pub Vec<Statement>);
 
 #[derive(Debug, Clone, Serialize)]
 pub enum TypeExpr {
-    Path(StaticPath),
+    Path(StaticPath, Vec<TypeExpr>),
     Tuple(Vec<TypeExpr>),
 }
 

parser/src/grammar.pest

@@ -74,7 +74,8 @@ while_stmt = {
 
 // ================= EXPRESSIONS =================
 tuple_type = { "(" ~ (type_expr ~ ("," ~ type_expr)*)? ~ ")" }
-type_expr  = { (static_path ~ ("<" ~ type_expr ~ ">")?) | tuple_type }
+path_type  = { static_path ~ ("<" ~ (type_expr ~ ("," ~ type_expr)*)? ~ ">")? }
+type_expr  = { path_type | tuple_type }
 
 primary = {
     integer

parser/src/lib.rs

@@ -30,8 +30,12 @@ impl From<pest::iterators::Pair<'_, Rule>> for TypeExpr {
     fn from(pair: pest::iterators::Pair<'_, Rule>) -> Self {
         match pair.as_rule() {
             Rule::type_expr => TypeExpr::from(pair.into_inner().next().unwrap()),
-            Rule::static_path => TypeExpr::Path(StaticPath::from(pair)),
             Rule::tuple_type => TypeExpr::Tuple(pair.into_inner().map(TypeExpr::from).collect()),
+            Rule::path_type => {
+                let mut inner = pair.into_inner();
+
+                TypeExpr::Path(StaticPath::from(inner.next().unwrap()), inner.map(TypeExpr::from).collect())
+            }
             _ => unimplemented!("{pair:#?}"),
         }
     }

test/src/main.mist

@@ -1,3 +1,3 @@
-(i32, i32) main() {
+Result<void, String> main() {
     
 }