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// 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 "github.com/facebook/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)
)
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