check_enum_values_not_deleted.go

// Copyright (c) 2020 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package breaking

import (
	"github.com/uber/prototool/internal/extract"
	"github.com/uber/prototool/internal/text"
)

func checkEnumValuesNotDeleted(addFailure func(*text.Failure), from *extract.PackageSet, to *extract.PackageSet) error {
	return forEachEnumPair(addFailure, from, to, checkEnumValuesNotDeletedEnum)
}

func checkEnumValuesNotDeletedEnum(addFailure func(*text.Failure), from *extract.Enum, to *extract.Enum) error {
	fromValueNumberToValue := from.ValueNumberToValue()
	toValueNumberToValue := to.ValueNumberToValue()
	for valueNumber := range fromValueNumberToValue {
		if _, ok := toValueNumberToValue[valueNumber]; !ok {
			addFailure(newEnumValuesNotDeletedFailure(from.FullyQualifiedName(), valueNumber))
		}
	}
	return nil
}

func newEnumValuesNotDeletedFailure(enumName string, valueNumber int32) *text.Failure {
	return newTextFailuref(`Enum value "%d" on enum %q was deleted.`, valueNumber, enumName)
}