| // Copyright (C) 2016 The Android Open Source Project |
| // |
| // 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 parse |
| |
| import ( |
| "io" |
| |
| "android.googlesource.com/platform/tools/gpu/framework/compare" |
| ) |
| |
| // Branch is a CST node that can have children. |
| type Branch struct { |
| node |
| // Children is the slice of child nodes for this Branch. |
| Children []Node |
| } |
| |
| func (n *Branch) Token() Token { |
| tok := Token{} |
| if len(n.Children) > 0 { |
| first := n.Children[0].Token() |
| last := n.Children[len(n.Children)-1].Token() |
| tok = first |
| tok.End = last.End |
| } |
| return tok |
| } |
| |
| func (n *Branch) WriteTo(w io.Writer) error { |
| if err := n.prefix.WriteTo(w); err != nil { |
| return err |
| } |
| for _, c := range n.Children { |
| if err := c.WriteTo(w); err != nil { |
| return err |
| } |
| } |
| return n.suffix.WriteTo(w) |
| } |
| |
| func compareBranches(c compare.Comparator, reference, value *Branch) { |
| c.With(c.Path.Member("node", reference, value)).Compare(reference.node, value.node) |
| c.With(c.Path.Member("Children", reference, value)).Compare(reference.Children, value.Children) |
| } |
| |
| func init() { |
| compare.Register(compareBranches) |
| } |