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utils.go
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utils.go
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// Copyright 2020 Google LLC. 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 generator
import (
"strings"
"google.golang.org/protobuf/reflect/protoreflect"
)
// contains returns true if an array contains a specified string.
func contains(s []string, e string) bool {
for _, a := range s {
if a == e {
return true
}
}
return false
}
// appendUnique appends a string, to a string slice, if the string is not already in the slice
func appendUnique(s []string, e string) []string {
if !contains(s, e) {
return append(s, e)
}
return s
}
// singular produces the singular form of a collection name.
func singular(plural string) string {
if strings.HasSuffix(plural, "ves") {
return strings.TrimSuffix(plural, "ves") + "f"
}
if strings.HasSuffix(plural, "ies") {
return strings.TrimSuffix(plural, "ies") + "y"
}
if strings.HasSuffix(plural, "s") {
return strings.TrimSuffix(plural, "s")
}
return plural
}
func getValueKind(message protoreflect.MessageDescriptor) string {
valueField := getValueField(message)
return valueField.Kind().String()
}
func getValueField(message protoreflect.MessageDescriptor) protoreflect.FieldDescriptor {
fields := message.Fields()
return fields.ByName("value")
}