From f13a706f3c5c3fbcf51fe4c06311e741109247a4 Mon Sep 17 00:00:00 2001
From: Phu Ngo <12547020+NgoKimPhu@users.noreply.github.com>
Date: Sat, 4 Nov 2023 02:19:49 +0700
Subject: [PATCH 1/2] fix: panic on embedded struct with recursive

fixes #459
---
 internal/encoder/code.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/internal/encoder/code.go b/internal/encoder/code.go
index 5b08faef..fec45a4b 100644
--- a/internal/encoder/code.go
+++ b/internal/encoder/code.go
@@ -518,6 +518,7 @@ func (c *StructCode) ToAnonymousOpcode(ctx *compileContext) Opcodes {
 		prevField = firstField
 		codes = codes.Add(fieldCodes...)
 	}
+	ctx.structTypeToCodes[uintptr(unsafe.Pointer(c.typ))] = codes
 	return codes
 }
 

From b7136ccfbac5ed3744373837f8a7e129ebc5059c Mon Sep 17 00:00:00 2001
From: Phu Ngo <12547020+NgoKimPhu@users.noreply.github.com>
Date: Sat, 4 Nov 2023 03:03:47 +0700
Subject: [PATCH 2/2] chore: add unit test for #459

---
 encode_test.go | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/encode_test.go b/encode_test.go
index 1165f6a6..17fe65fd 100644
--- a/encode_test.go
+++ b/encode_test.go
@@ -2710,3 +2710,17 @@ func TestIssue441(t *testing.T) {
 	assertErr(t, err)
 	assertEq(t, "unexpected result", "{}", string(b))
 }
+
+func TestIssue459(t *testing.T) {
+	type A struct {
+		A *A `json:"a,omitempty"`
+	}
+
+	type B struct {
+		A
+	}
+
+	b, err := json.Marshal(B{})
+	assertErr(t, err)
+	assertEq(t, "unexpected result", "{}", string(b))
+}