From 65c0dd3e27c3bafc2ae18093c18f4aaeca156da6 Mon Sep 17 00:00:00 2001
From: Virgil <virgil@lethean.io>
Date: Tue, 31 Mar 2026 19:22:02 +0000
Subject: [PATCH] fix(html): default nil render contexts

Co-Authored-By: Virgil <virgil@lethean.io>
---
 layout.go          |  3 +++
 layout_test.go     | 10 ++++++++++
 responsive.go      |  3 +++
 responsive_test.go | 11 +++++++++++
 4 files changed, 27 insertions(+)

diff --git a/layout.go b/layout.go
index 25dbc4f..67faeec 100644
--- a/layout.go
+++ b/layout.go
@@ -109,6 +109,9 @@ func (l *Layout) Render(ctx *Context) string {
 	if l == nil {
 		return ""
 	}
+	if ctx == nil {
+		ctx = NewContext()
+	}
 
 	b := newTextBuilder()
 
diff --git a/layout_test.go b/layout_test.go
index e43c9e8..704b52f 100644
--- a/layout_test.go
+++ b/layout_test.go
@@ -137,3 +137,13 @@ func TestLayout_Methods_NilLayout_Ugly(t *testing.T) {
 		t.Fatalf("nil layout render should be empty, got %q", got)
 	}
 }
+
+func TestLayout_Render_NilContext_Good(t *testing.T) {
+	layout := NewLayout("C").C(Raw("content"))
+
+	got := layout.Render(nil)
+	want := `<main role="main" data-block="C-0">content</main>`
+	if got != want {
+		t.Fatalf("layout.Render(nil) = %q, want %q", got, want)
+	}
+}
diff --git a/responsive.go b/responsive.go
index b892e8d..1f0dd06 100644
--- a/responsive.go
+++ b/responsive.go
@@ -38,6 +38,9 @@ func (r *Responsive) Render(ctx *Context) string {
 	if r == nil {
 		return ""
 	}
+	if ctx == nil {
+		ctx = NewContext()
+	}
 
 	b := newTextBuilder()
 	for _, v := range r.variants {
diff --git a/responsive_test.go b/responsive_test.go
index b93fd46..58f67c9 100644
--- a/responsive_test.go
+++ b/responsive_test.go
@@ -99,3 +99,14 @@ func TestResponsive_Variant_NilResponsive_Ugly(t *testing.T) {
 		t.Fatalf("unexpected output from nil receiver Variant path: %q", output)
 	}
 }
+
+func TestResponsive_Render_NilContext_Good(t *testing.T) {
+	r := NewResponsive().
+		Variant("mobile", NewLayout("C").C(Raw("content")))
+
+	got := r.Render(nil)
+	want := `<div data-variant="mobile"><main role="main" data-block="C-0">content</main></div>`
+	if got != want {
+		t.Fatalf("responsive.Render(nil) = %q, want %q", got, want)
+	}
+}