Add in support to compile Methods and MethodCallExpr

There is more work to be done here with adjustments to the self argument
such as borrows and mutability checking.

Method resolution is basic, for now there is code to scan for all possible
matches but traits are not supported at the moment so this resolves quite
simply for now.

Fixes #191 #112

1 files changed, 11 insertions, 2 deletions

diff --git a/gcc/rust/ast/rust-expr.h b/gcc/rust/ast/rust-expr.h
index 6dba7fd..50006d1 100644
--- a/gcc/rust/ast/rust-expr.h
+++ b/gcc/rust/ast/rust-expr.h
@@ -2355,9 +2355,9 @@ public:
 
   void iterate_params (std::function<bool (Expr *)> cb)
   {
-    for (auto it = params.begin (); it != params.end (); it++)
+    for (auto &param : params)
       {
-	if (!cb (it->get ()))
+	if (!cb (param.get ()))
 	  return;
       }
   }
@@ -2456,6 +2456,15 @@ public:
   void mark_for_strip () override { receiver = nullptr; }
   bool is_marked_for_strip () const override { return receiver == nullptr; }
 
+  void iterate_params (std::function<bool (Expr *)> cb)
+  {
+    for (auto &param : params)
+      {
+	if (!cb (param.get ()))
+	  return;
+      }
+  }
+
   // TODO: this mutable getter seems really dodgy. Think up better way.
   const std::vector<std::unique_ptr<Expr> > &get_params () const
   {