From fef66e345bd0561f09875477b38a4c8da27577c7 Mon Sep 17 00:00:00 2001
From: greg <greg.shuflin@protonmail.com>
Date: Fri, 19 Oct 2018 17:43:22 -0700
Subject: [PATCH] Subpattern field

---
 schala-lang/language/src/reduced_ast.rs | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/schala-lang/language/src/reduced_ast.rs b/schala-lang/language/src/reduced_ast.rs
index a7c284e..b47d710 100644
--- a/schala-lang/language/src/reduced_ast.rs
+++ b/schala-lang/language/src/reduced_ast.rs
@@ -58,14 +58,15 @@ pub enum Expr {
 #[derive(Debug, Clone)]
 pub struct Alternative {
   pub tag: Option<usize>,
-  pub guard: Option<Expr>, //TODO should be a vec
+  pub subpatterns: Vec<Alternative>,
+  pub guard: Option<Expr>,
   pub bound_vars: Vec<Option<Rc<String>>>, //remember that order matters here
   pub item: Vec<Stmt>,
 }
 
 impl Alternative {
   fn default(item: Vec<Stmt>) -> Alternative {
-    Alternative { tag: None, guard: None, bound_vars: vec![], item }
+    Alternative { tag: None, subpatterns: vec![], guard: None, bound_vars: vec![], item }
   }
 }
 
@@ -216,9 +217,13 @@ impl Pattern {
       }).collect();
       */
 
+      let guard = None;
+      let subpatterns = vec![];
+
       Alternative {
         tag: Some(tag),
-        guard: None,
+        subpatterns,
+        guard,
         bound_vars,
         item,
       }
@@ -251,6 +256,7 @@ impl Pattern {
           });
           Alternative {
             tag: None,
+            subpatterns: vec![],
             guard,
             bound_vars: vec![],
             item
@@ -268,6 +274,7 @@ impl Pattern {
           });
           Alternative {
             tag: None,
+            subpatterns: vec![],
             guard,
             bound_vars: vec![],
             item
@@ -277,6 +284,7 @@ impl Pattern {
           Some(symbol) => handle_symbol(symbol, &vec![], item),
           None => Alternative {
             tag: None,
+            subpatterns: vec![],
             guard: None,
             bound_vars: vec![Some(var.clone())],
             item