gistfile1.txt

/*
Copyright 2017 Google Inc. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package executions

import (
        "encoding/json"
        "errors"
)

type rawCompletion struct {
        Execution string `json:"execution"`
        Artifacts string `json:"artifacts"`
}

type completion struct {
        Type string `json:"type"`
        *rawCompletion
}

type Completion rawCompletion

func (c *Completion) UnmarshalJSON(data []byte) error {
        ic := &completion{rawCompletion: (*rawCompletion)(c)}
        if err := json.Unmarshal(data, ic); err != nil {
                return err
        }
        if ic.Type != "completion" {
                return errors.New("type is not completion")
        }
        return nil
}

func (c Completion) MarshalJSON() ([]byte, error) {
        return json.Marshal(completion{
                Type:          "completion",
                rawCompletion: (*rawCompletion)(&c),
        })
}

type rawInitiation struct {
        Execution string `json:"execution"`
}

type initiation struct {
        Type string `json:"type"`
        *rawInitiation
}

type Initiation rawInitiation

func (c *Initiation) UnmarshalJSON(data []byte) error {
        ic := &initiation{rawInitiation: (*rawInitiation)(c)}
        if err := json.Unmarshal(data, ic); err != nil {
                return err
        }
        if ic.Type != "initiation" {
                return errors.New("type is not initiation")
        }
        return nil
}

func (c Initiation) MarshalJSON() ([]byte, error) {
        return json.Marshal(initiation{
                Type:          "initiation",
                rawInitiation: (*rawInitiation)(&c),
        })
}