| // 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" |
| ) |
| |
| // Leaf nodes are part of the cst that cannot have child nodes, they represent |
| // a single token from the input. |
| type Leaf struct { |
| fragment |
| node |
| } |
| |
| func (n *Leaf) WriteTo(w io.Writer) error { |
| if err := n.prefix.WriteTo(w); err != nil { |
| return err |
| } |
| if err := n.fragment.WriteTo(w); err != nil { |
| return err |
| } |
| return n.suffix.WriteTo(w) |
| } |
| |
| func compareLeaves(c compare.Comparator, reference, value *Leaf) { |
| c.With(c.Path.Member("fragment", reference, value)).Compare(reference.fragment, value.fragment) |
| c.With(c.Path.Member("node", reference, value)).Compare(reference.node, value.node) |
| } |
| |
| func init() { |
| compare.Register(compareLeaves) |
| } |