From 34a4c159324fe8c523d4233792d29572a8970124 Mon Sep 17 00:00:00 2001
From: Evgenii Stratonikov <evgeniy@nspcc.ru>
Date: Tue, 19 May 2020 17:02:26 +0300
Subject: [PATCH] compiler: support byte slice declaration

---
 pkg/compiler/codegen.go    |  2 ++
 pkg/compiler/slice_test.go | 11 +++++++++++
 2 files changed, 13 insertions(+)

diff --git a/pkg/compiler/codegen.go b/pkg/compiler/codegen.go
index b26c82cb4..6d4178636 100644
--- a/pkg/compiler/codegen.go
+++ b/pkg/compiler/codegen.go
@@ -233,6 +233,8 @@ func (c *codegen) emitDefault(t types.Type) {
 	case *types.Slice:
 		if isCompoundSlice(t) {
 			emit.Opcode(c.prog.BinWriter, opcode.NEWARRAY0)
+		} else {
+			emit.Bytes(c.prog.BinWriter, []byte{})
 		}
 	case *types.Struct:
 		emit.Int(c.prog.BinWriter, int64(t.NumFields()))
diff --git a/pkg/compiler/slice_test.go b/pkg/compiler/slice_test.go
index 40600ea28..a853f6e00 100644
--- a/pkg/compiler/slice_test.go
+++ b/pkg/compiler/slice_test.go
@@ -130,6 +130,17 @@ var sliceTestCases = []testCase{
 		}`,
 		[]byte{2, 3},
 	},
+	{
+		"declare byte slice",
+		`package foo
+		func Main() []byte {
+			var a []byte
+			a = append(a, 1)
+			a = append(a, 2)
+			return a
+		}`,
+		[]byte{1, 2},
+	},
 	{
 		"declare compound slice",
 		`package foo