Merge pull request #104 from Pivot-Studio/Chronostasys/issue103

refactor: use Rc<RefCell> for pltype

Author: Chronostasys

.github/workflows/test.yml

@@ -1,12 +1,8 @@
 name: test
 on:
   pull_request:
-    types:
-      - opened
-      - reopened
-      - ready_for_review
-      - edited
-      - reopened
+    branches:
+      - master
   push:
     branches:
       - "master"

README.md

@@ -147,7 +147,11 @@ program = toplevel_statement* ;
 
 function_def = "fn" identifier "(" (typed_identifier (","typed_identifier)*)? ")" type_name (statement_block | ";") ;
 
-struct_def = "struct" identifier "{" struct_field* "}" ;
+generic_type = "<" type_name ("|" type_name)* ">" ;
+
+generic_type_def = "<" identifier ("|" identifier)* ">" ;
+
+struct_def = "struct" identifier generic_type_def? "{" struct_field* "}" ;
 
 type_name = "*"* extern_identifier ;