From b445717b44940c9b950b97a4362c1acb7d4def26 Mon Sep 17 00:00:00 2001
From: Nat Quayle Nelson <natquaylenelson@gmail.com>
Date: Sat, 26 Jun 2021 13:03:31 -0600
Subject: [PATCH] fix error when (defmethod) is used in function body

---
 src/kiss/SpecialForms.hx | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/kiss/SpecialForms.hx b/src/kiss/SpecialForms.hx
index 67e3f5f..a2b0124 100644
--- a/src/kiss/SpecialForms.hx
+++ b/src/kiss/SpecialForms.hx
@@ -23,7 +23,15 @@ class SpecialForms {
         map["begin"] = (wholeExp:ReaderExp, args:Array<ReaderExp>, k:KissState) -> {
             // Sometimes empty blocks are useful, so a checkNumArgs() seems unnecessary here for now.
 
-            EBlock([for (bodyExp in args) k.convert(bodyExp)]).withMacroPosOf(wholeExp);
+            // blocks can contain field forms that don't return an expression. These can't be included in blocks
+            var exprs = [];
+            for (bodyExp in args) {
+                var expr = k.convert(bodyExp);
+                if (expr != null) {
+                    exprs.push(expr);
+                }
+            }
+            EBlock(exprs).withMacroPosOf(wholeExp);
         };
 
         function arrayAccess(wholeExp:ReaderExp, args:Array<ReaderExp>, k:KissState) {