Zack Williams | e940c7a | 2019-08-21 14:25:39 -0700 | [diff] [blame] | 1 | // Copyright 2017 Google Inc. 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 | |
| 15 | package compiler |
| 16 | |
| 17 | // Context contains state of the compiler as it traverses a document. |
| 18 | type Context struct { |
| 19 | Parent *Context |
| 20 | Name string |
| 21 | ExtensionHandlers *[]ExtensionHandler |
| 22 | } |
| 23 | |
| 24 | // NewContextWithExtensions returns a new object representing the compiler state |
| 25 | func NewContextWithExtensions(name string, parent *Context, extensionHandlers *[]ExtensionHandler) *Context { |
| 26 | return &Context{Name: name, Parent: parent, ExtensionHandlers: extensionHandlers} |
| 27 | } |
| 28 | |
| 29 | // NewContext returns a new object representing the compiler state |
| 30 | func NewContext(name string, parent *Context) *Context { |
| 31 | if parent != nil { |
| 32 | return &Context{Name: name, Parent: parent, ExtensionHandlers: parent.ExtensionHandlers} |
| 33 | } |
| 34 | return &Context{Name: name, Parent: parent, ExtensionHandlers: nil} |
| 35 | } |
| 36 | |
| 37 | // Description returns a text description of the compiler state |
| 38 | func (context *Context) Description() string { |
| 39 | if context.Parent != nil { |
| 40 | return context.Parent.Description() + "." + context.Name |
| 41 | } |
| 42 | return context.Name |
| 43 | } |