From f922473ada7e3ffb77bbf5601c5225003f3a7b75 Mon Sep 17 00:00:00 2001
From: Reuben Dunnington <reuben.dunnington@gmail.com>
Date: Wed, 9 Aug 2023 20:11:11 -0700
Subject: [PATCH] fix binding generation bug

---
 scripts/bindgen_bb.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/scripts/bindgen_bb.py b/scripts/bindgen_bb.py
index 9806d74..5899bfb 100644
--- a/scripts/bindgen_bb.py
+++ b/scripts/bindgen_bb.py
@@ -119,6 +119,7 @@ for decl in data:
 		s += '\n{\n\t'
 		retTag = decl['ret']['tag']
 
+		firstArgIndex = 0
 		if retTag == 'i':
 			s += 'returns[0].i32_val = '
 		elif retTag == 'I':
@@ -130,12 +131,11 @@ for decl in data:
 		elif retTag == 'S':
 			retTypeName = decl['ret']['name']
 			retTypeCName = decl['ret'].get('cname', retTypeName)
-			s += '*(' + retTypeCName + '*)(bb_module_instance_mem(module, returns[0].i32_val, sizeof(' + retTypeCName + '))) = '
+			s += '*(' + retTypeCName + '*)(bb_module_instance_mem(module, params[0].i32_val, sizeof(' + retTypeCName + '))) = '
+			firstArgIndex = 1
 
 		s += cname + '('
 
-		firstArgIndex = 0
-
 		for i, arg in enumerate(decl['args']):
 			typeName = arg['type']['name']
 			typeCName = arg['type'].get('cname', typeName)
@@ -209,7 +209,7 @@ for decl in data:
 		paramTypes.append(translateTag(tag))
 		numParams += 1
 
-	# dummy values to avoid 0-length arrays in C
+	# dummy values
 	if numReturns == 0:
 		retType = 'BB_VALTYPE_I32'