context.go 1.7 KB

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  1. // Copyright 2017 Google LLC. All Rights Reserved.
  2. //
  3. // Licensed under the Apache License, Version 2.0 (the "License");
  4. // you may not use this file except in compliance with the License.
  5. // You may obtain a copy of the License at
  6. //
  7. // http://www.apache.org/licenses/LICENSE-2.0
  8. //
  9. // Unless required by applicable law or agreed to in writing, software
  10. // distributed under the License is distributed on an "AS IS" BASIS,
  11. // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12. // See the License for the specific language governing permissions and
  13. // limitations under the License.
  14. package compiler
  15. import (
  16. yaml "gopkg.in/yaml.v3"
  17. )
  18. // Context contains state of the compiler as it traverses a document.
  19. type Context struct {
  20. Parent *Context
  21. Name string
  22. Node *yaml.Node
  23. ExtensionHandlers *[]ExtensionHandler
  24. }
  25. // NewContextWithExtensions returns a new object representing the compiler state
  26. func NewContextWithExtensions(name string, node *yaml.Node, parent *Context, extensionHandlers *[]ExtensionHandler) *Context {
  27. return &Context{Name: name, Node: node, Parent: parent, ExtensionHandlers: extensionHandlers}
  28. }
  29. // NewContext returns a new object representing the compiler state
  30. func NewContext(name string, node *yaml.Node, parent *Context) *Context {
  31. if parent != nil {
  32. return &Context{Name: name, Node: node, Parent: parent, ExtensionHandlers: parent.ExtensionHandlers}
  33. }
  34. return &Context{Name: name, Parent: parent, ExtensionHandlers: nil}
  35. }
  36. // Description returns a text description of the compiler state
  37. func (context *Context) Description() string {
  38. name := context.Name
  39. if context.Parent != nil {
  40. name = context.Parent.Description() + "." + name
  41. }
  42. return name
  43. }