57 lines
1.6 KiB
Go
57 lines
1.6 KiB
Go
// Copyright 2017 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package protostruct supports operations on the protocol buffer Struct message.
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package protostruct
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import (
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pb "github.com/golang/protobuf/ptypes/struct"
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)
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// DecodeToMap converts a pb.Struct to a map from strings to Go types.
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// DecodeToMap panics if s is invalid.
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func DecodeToMap(s *pb.Struct) map[string]interface{} {
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if s == nil {
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return nil
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}
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m := map[string]interface{}{}
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for k, v := range s.Fields {
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m[k] = decodeValue(v)
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}
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return m
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}
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func decodeValue(v *pb.Value) interface{} {
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switch k := v.Kind.(type) {
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case *pb.Value_NullValue:
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return nil
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case *pb.Value_NumberValue:
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return k.NumberValue
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case *pb.Value_StringValue:
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return k.StringValue
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case *pb.Value_BoolValue:
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return k.BoolValue
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case *pb.Value_StructValue:
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return DecodeToMap(k.StructValue)
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case *pb.Value_ListValue:
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s := make([]interface{}, len(k.ListValue.Values))
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for i, e := range k.ListValue.Values {
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s[i] = decodeValue(e)
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}
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return s
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default:
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panic("protostruct: unknown kind")
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}
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}
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