ceph/src/jaegertracing/thrift/lib/go/thrift/field.go

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements. See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership. The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License. You may obtain a copy of the License at
   9  *
  10  *   http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing,
  13  * software distributed under the License is distributed on an
  14  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  15  * KIND, either express or implied. See the License for the
  16  * specific language governing permissions and limitations
  17  * under the License.
  18  */
  19
  20 package thrift
  21
  22 // Helper class that encapsulates field metadata.
  23 type field struct {
  24         name   string
  25         typeId TType
  26         id     int
  27 }
  28
  29 func newField(n string, t TType, i int) *field {
  30         return &field{name: n, typeId: t, id: i}
  31 }
  32
  33 func (p *field) Name() string {
  34         if p == nil {
  35                 return ""
  36         }
  37         return p.name
  38 }
  39
  40 func (p *field) TypeId() TType {
  41         if p == nil {
  42                 return TType(VOID)
  43         }
  44         return p.typeId
  45 }
  46
  47 func (p *field) Id() int {
  48         if p == nil {
  49                 return -1
  50         }
  51         return p.id
  52 }
  53
  54 func (p *field) String() string {
  55         if p == nil {
  56                 return "<nil>"
  57         }
  58         return "<TField name:'" + p.name + "' type:" + string(p.typeId) + " field-id:" + string(p.id) + ">"
  59 }
  60
  61 var ANONYMOUS_FIELD *field
  62
  63 type fieldSlice []field
  64
  65 func (p fieldSlice) Len() int {
  66         return len(p)
  67 }
  68
  69 func (p fieldSlice) Less(i, j int) bool {
  70         return p[i].Id() < p[j].Id()
  71 }
  72
  73 func (p fieldSlice) Swap(i, j int) {
  74         p[i], p[j] = p[j], p[i]
  75 }
  76
  77 func init() {
  78         ANONYMOUS_FIELD = newField("", STOP, 0)
  79 }