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 15package compiler 16 17import ( 18 yaml "gopkg.in/yaml.v3" 19) 20 21// Context contains state of the compiler as it traverses a document. 22type Context struct { 23 Parent *Context 24 Name string 25 Node *yaml.Node 26 ExtensionHandlers *[]ExtensionHandler 27} 28 29// NewContextWithExtensions returns a new object representing the compiler state 30func NewContextWithExtensions(name string, node *yaml.Node, parent *Context, extensionHandlers *[]ExtensionHandler) *Context { 31 return &Context{Name: name, Node: node, Parent: parent, ExtensionHandlers: extensionHandlers} 32} 33 34// NewContext returns a new object representing the compiler state 35func NewContext(name string, node *yaml.Node, parent *Context) *Context { 36 if parent != nil { 37 return &Context{Name: name, Node: node, Parent: parent, ExtensionHandlers: parent.ExtensionHandlers} 38 } 39 return &Context{Name: name, Parent: parent, ExtensionHandlers: nil} 40} 41 42// Description returns a text description of the compiler state 43func (context *Context) Description() string { 44 name := context.Name 45 if context.Parent != nil { 46 name = context.Parent.Description() + "." + name 47 } 48 return name 49} 50