diff --git a/d2layouts/d2sequence/layout.go b/d2layouts/d2sequence/layout.go
index 6a9498642..7940e13b1 100644
--- a/d2layouts/d2sequence/layout.go
+++ b/d2layouts/d2sequence/layout.go
@@ -32,6 +32,9 @@ func Layout(ctx context.Context, g *d2graph.Graph, layout func(ctx context.Conte
for len(queue) > 0 {
obj := queue[0]
queue = queue[1:]
+ if len(obj.ChildrenArray) == 0 {
+ continue
+ }
if obj.Attributes.Shape.Value != d2target.ShapeSequenceDiagram {
queue = append(queue, obj.ChildrenArray...)
continue
diff --git a/e2etests/regression_test.go b/e2etests/regression_test.go
index fc0f6c7c7..8170bc359 100644
--- a/e2etests/regression_test.go
+++ b/e2etests/regression_test.go
@@ -12,6 +12,20 @@ func testRegression(t *testing.T) {
ninety\nnine
eighty\reight
seventy\r\nseven
+`,
+ },
+ {
+ name: "empty_sequence",
+ script: `
+A: hello {
+ shape: sequence_diagram
+}
+
+B: goodbye {
+ shape: sequence_diagram
+}
+
+A->B
`,
},
}
diff --git a/e2etests/testdata/regression/dagre_id_with_newline/dagre/board.exp.json b/e2etests/testdata/regression/dagre_id_with_newline/dagre/board.exp.json
index be2cc9969..83a5c2112 100644
--- a/e2etests/testdata/regression/dagre_id_with_newline/dagre/board.exp.json
+++ b/e2etests/testdata/regression/dagre_id_with_newline/dagre/board.exp.json
@@ -23,6 +23,7 @@
"link": "",
"icon": null,
"iconPosition": "",
+ "blend": false,
"fields": null,
"methods": null,
"columns": null,
@@ -62,6 +63,7 @@
"link": "",
"icon": null,
"iconPosition": "",
+ "blend": false,
"fields": null,
"methods": null,
"columns": null,
@@ -101,6 +103,7 @@
"link": "",
"icon": null,
"iconPosition": "",
+ "blend": false,
"fields": null,
"methods": null,
"columns": null,
diff --git a/e2etests/testdata/regression/dagre_id_with_newline/dagre/sketch.exp.svg b/e2etests/testdata/regression/dagre_id_with_newline/dagre/sketch.exp.svg
index eeb82e050..89f85e41d 100644
--- a/e2etests/testdata/regression/dagre_id_with_newline/dagre/sketch.exp.svg
+++ b/e2etests/testdata/regression/dagre_id_with_newline/dagre/sketch.exp.svg
@@ -12,6 +12,10 @@ width="784" height="342" viewBox="-100 -100 784 342">ninetynineeighty
eightseventy
sevenninetynineeighty
eightseventy
sevenhellogoodbye
\ No newline at end of file
diff --git a/e2etests/testdata/regression/empty_sequence/elk/board.exp.json b/e2etests/testdata/regression/empty_sequence/elk/board.exp.json
new file mode 100644
index 000000000..e5224a34d
--- /dev/null
+++ b/e2etests/testdata/regression/empty_sequence/elk/board.exp.json
@@ -0,0 +1,126 @@
+{
+ "name": "",
+ "shapes": [
+ {
+ "id": "A",
+ "type": "sequence_diagram",
+ "pos": {
+ "x": 25,
+ "y": 12
+ },
+ "width": 140,
+ "height": 126,
+ "opacity": 1,
+ "strokeDash": 0,
+ "strokeWidth": 0,
+ "borderRadius": 0,
+ "fill": "#FFFFFF",
+ "stroke": "#0D32B2",
+ "shadow": false,
+ "3d": false,
+ "multiple": false,
+ "tooltip": "",
+ "link": "",
+ "icon": null,
+ "iconPosition": "",
+ "blend": false,
+ "fields": null,
+ "methods": null,
+ "columns": null,
+ "label": "hello",
+ "fontSize": 16,
+ "fontFamily": "DEFAULT",
+ "language": "",
+ "color": "#0A0F25",
+ "italic": false,
+ "bold": true,
+ "underline": false,
+ "labelWidth": 40,
+ "labelHeight": 26,
+ "labelPosition": "INSIDE_MIDDLE_CENTER",
+ "zIndex": 0,
+ "level": 1
+ },
+ {
+ "id": "B",
+ "type": "sequence_diagram",
+ "pos": {
+ "x": 12,
+ "y": 238
+ },
+ "width": 166,
+ "height": 126,
+ "opacity": 1,
+ "strokeDash": 0,
+ "strokeWidth": 0,
+ "borderRadius": 0,
+ "fill": "#FFFFFF",
+ "stroke": "#0D32B2",
+ "shadow": false,
+ "3d": false,
+ "multiple": false,
+ "tooltip": "",
+ "link": "",
+ "icon": null,
+ "iconPosition": "",
+ "blend": false,
+ "fields": null,
+ "methods": null,
+ "columns": null,
+ "label": "goodbye",
+ "fontSize": 16,
+ "fontFamily": "DEFAULT",
+ "language": "",
+ "color": "#0A0F25",
+ "italic": false,
+ "bold": true,
+ "underline": false,
+ "labelWidth": 66,
+ "labelHeight": 26,
+ "labelPosition": "INSIDE_MIDDLE_CENTER",
+ "zIndex": 0,
+ "level": 1
+ }
+ ],
+ "connections": [
+ {
+ "id": "(A -> B)[0]",
+ "src": "A",
+ "srcArrow": "none",
+ "srcLabel": "",
+ "dst": "B",
+ "dstArrow": "triangle",
+ "dstLabel": "",
+ "opacity": 1,
+ "strokeDash": 0,
+ "strokeWidth": 2,
+ "stroke": "#0D32B2",
+ "label": "",
+ "fontSize": 16,
+ "fontFamily": "DEFAULT",
+ "language": "",
+ "color": "#676C7E",
+ "italic": true,
+ "bold": false,
+ "underline": false,
+ "labelWidth": 0,
+ "labelHeight": 0,
+ "labelPosition": "",
+ "labelPercentage": 0,
+ "route": [
+ {
+ "x": 95,
+ "y": 138
+ },
+ {
+ "x": 95,
+ "y": 238
+ }
+ ],
+ "animated": false,
+ "tooltip": "",
+ "icon": null,
+ "zIndex": 0
+ }
+ ]
+}
diff --git a/e2etests/testdata/regression/empty_sequence/elk/sketch.exp.svg b/e2etests/testdata/regression/empty_sequence/elk/sketch.exp.svg
new file mode 100644
index 000000000..34c98543a
--- /dev/null
+++ b/e2etests/testdata/regression/empty_sequence/elk/sketch.exp.svg
@@ -0,0 +1,28 @@
+
+
\ No newline at end of file