parent_accessor.go

Documentation: github.com/emicklei/proto

     1  // Copyright (c) 2018 Ernest Micklei
     2  //
     3  // MIT License
     4  //
     5  // Permission is hereby granted, free of charge, to any person obtaining
     6  // a copy of this software and associated documentation files (the
     7  // "Software"), to deal in the Software without restriction, including
     8  // without limitation the rights to use, copy, modify, merge, publish,
     9  // distribute, sublicense, and/or sell copies of the Software, and to
    10  // permit persons to whom the Software is furnished to do so, subject to
    11  // the following conditions:
    12  //
    13  // The above copyright notice and this permission notice shall be
    14  // included in all copies or substantial portions of the Software.
    15  //
    16  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
    17  // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    18  // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
    19  // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
    20  // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
    21  // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
    22  // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
    23  
    24  package proto
    25  
    26  func getParent(child Visitee) Visitee {
    27  	if child == nil {
    28  		return nil
    29  	}
    30  	pa := new(parentAccessor)
    31  	child.Accept(pa)
    32  	return pa.parent
    33  }
    34  
    35  type parentAccessor struct {
    36  	parent Visitee
    37  }
    38  
    39  func (p *parentAccessor) VisitMessage(m *Message) {
    40  	p.parent = m.Parent
    41  }
    42  func (p *parentAccessor) VisitService(v *Service) {
    43  	p.parent = v.Parent
    44  }
    45  func (p *parentAccessor) VisitSyntax(s *Syntax) {
    46  	p.parent = s.Parent
    47  }
    48  func (p *parentAccessor) VisitPackage(pkg *Package) {
    49  	p.parent = pkg.Parent
    50  }
    51  func (p *parentAccessor) VisitOption(o *Option) {
    52  	p.parent = o.Parent
    53  }
    54  func (p *parentAccessor) VisitImport(i *Import) {
    55  	p.parent = i.Parent
    56  }
    57  func (p *parentAccessor) VisitNormalField(i *NormalField) {
    58  	p.parent = i.Parent
    59  }
    60  func (p *parentAccessor) VisitEnumField(i *EnumField) {
    61  	p.parent = i.Parent
    62  }
    63  func (p *parentAccessor) VisitEnum(e *Enum) {
    64  	p.parent = e.Parent
    65  }
    66  func (p *parentAccessor) VisitComment(e *Comment) {}
    67  func (p *parentAccessor) VisitOneof(o *Oneof) {
    68  	p.parent = o.Parent
    69  }
    70  func (p *parentAccessor) VisitOneofField(o *OneOfField) {
    71  	p.parent = o.Parent
    72  }
    73  func (p *parentAccessor) VisitReserved(rs *Reserved) {
    74  	p.parent = rs.Parent
    75  }
    76  func (p *parentAccessor) VisitRPC(rpc *RPC) {
    77  	p.parent = rpc.Parent
    78  }
    79  func (p *parentAccessor) VisitMapField(f *MapField) {
    80  	p.parent = f.Parent
    81  }
    82  func (p *parentAccessor) VisitGroup(g *Group) {
    83  	p.parent = g.Parent
    84  }
    85  func (p *parentAccessor) VisitExtensions(e *Extensions) {
    86  	p.parent = e.Parent
    87  }
    88  func (p *parentAccessor) VisitProto(*Proto) {}
    89
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