| // Copyright 2017 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package compiler |
| |
| // Context contains state of the compiler as it traverses a document. |
| type Context struct { |
| Parent *Context |
| Name string |
| ExtensionHandlers *[]ExtensionHandler |
| } |
| |
| // NewContextWithExtensions returns a new object representing the compiler state |
| func NewContextWithExtensions(name string, parent *Context, extensionHandlers *[]ExtensionHandler) *Context { |
| return &Context{Name: name, Parent: parent, ExtensionHandlers: extensionHandlers} |
| } |
| |
| // NewContext returns a new object representing the compiler state |
| func NewContext(name string, parent *Context) *Context { |
| if parent != nil { |
| return &Context{Name: name, Parent: parent, ExtensionHandlers: parent.ExtensionHandlers} |
| } |
| return &Context{Name: name, Parent: parent, ExtensionHandlers: nil} |
| } |
| |
| // Description returns a text description of the compiler state |
| func (context *Context) Description() string { |
| if context.Parent != nil { |
| return context.Parent.Description() + "." + context.Name |
| } |
| return context.Name |
| } |