import.go 2.1 KB

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  1. // Copyright (c) 2017 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. package proto
  24. import (
  25. "text/scanner"
  26. )
  27. // Import holds a filename to another .proto definition.
  28. type Import struct {
  29. Position scanner.Position
  30. Comment *Comment
  31. Filename string
  32. Kind string // weak, public, <empty>
  33. InlineComment *Comment
  34. Parent Visitee
  35. }
  36. func (i *Import) parse(p *Parser) error {
  37. _, tok, lit := p.next()
  38. switch tok {
  39. case tWEAK:
  40. i.Kind = lit
  41. return i.parse(p)
  42. case tPUBLIC:
  43. i.Kind = lit
  44. return i.parse(p)
  45. case tIDENT:
  46. i.Filename = unQuote(lit)
  47. default:
  48. return p.unexpected(lit, "import classifier weak|public|quoted", i)
  49. }
  50. return nil
  51. }
  52. // Accept dispatches the call to the visitor.
  53. func (i *Import) Accept(v Visitor) {
  54. v.VisitImport(i)
  55. }
  56. // inlineComment is part of commentInliner.
  57. func (i *Import) inlineComment(c *Comment) {
  58. i.InlineComment = c
  59. }
  60. // Doc is part of Documented
  61. func (i *Import) Doc() *Comment {
  62. return i.Comment
  63. }
  64. func (i *Import) parent(v Visitee) { i.Parent = v }