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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 schema
// Annotation is used to attach arbitrary metadata to the schema objects in codegen.
// The object must be serializable to JSON raw value (e.g. struct, map or slice).
//
// Template extensions can retrieve this metadata and use it inside their templates.
// Read more about it in ent website: https://entgo.io/docs/templates/#annotations.
type Annotation interface {
// Name defines the name of the annotation to be retrieved by the codegen.
Name() string
}
// Merger wraps the single Merge function allows custom annotation to provide
// an implementation for merging 2 or more annotations from the same type.
//
// A common use case is where the same Annotation type is defined both in
// mixin.Schema and ent.Schema.
type Merger interface {
Merge(Annotation) Annotation
}
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