snapshot of https://github.com/ent/ent.git (master, 2026-09-15; blobs > 131072B omitted)

schema/edge/annotation.go

@@ -0,0 +1,49 @@
+// Copyright 2019-present Facebook Inc. All rights reserved.
+// This source code is licensed under the Apache 2.0 license found
+// in the LICENSE file in the root directory of this source tree.
+
+package edge
+
+import "entgo.io/ent/schema"
+
+// Annotation is a builtin schema annotation for
+// configuring the edges' behavior in codegen.
+type Annotation struct {
+	// The StructTag option allows overriding the struct-tag
+	// of the `Edges` field in the generated entity. For example:
+	//
+	//	edge.Annotation{
+	//		StructTag: `json:"pet_edges"`
+	//	}
+	//
+	StructTag string
+}
+
+// Name describes the annotation name.
+func (Annotation) Name() string {
+	return "Edges"
+}
+
+// Merge implements the schema.Merger interface.
+func (a Annotation) Merge(other schema.Annotation) schema.Annotation {
+	var ant Annotation
+	switch other := other.(type) {
+	case Annotation:
+		ant = other
+	case *Annotation:
+		if other != nil {
+			ant = *other
+		}
+	default:
+		return a
+	}
+	if tag := ant.StructTag; tag != "" {
+		a.StructTag = tag
+	}
+	return a
+}
+
+var (
+	_ schema.Annotation = (*Annotation)(nil)
+	_ schema.Merger     = (*Annotation)(nil)
+)