prometheus/rules/ast/walk.go
Bjoern Rabenstein fd63500ed3 Make rules/ast golint clean.
Mostly, that means adding compliant doc strings to exported items.

Also, remove 'go vet' warnings where possible. (Some are unfortunately
not to avoid, arguably bugs in 'go vet'.)

Change-Id: I2827b6dd317492864c1383c3de1ea9eac5a219bb
2014-02-14 15:01:39 +01:00

29 lines
962 B
Go

// Copyright 2013 Prometheus Team
// 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 ast
// Visitor is the interface for a Node visitor.
type Visitor interface {
Visit(node Node)
}
// Walk does a depth-first traversal of the AST, starting at node,
// calling visitor.Visit for each encountered Node in the tree.
func Walk(visitor Visitor, node Node) {
visitor.Visit(node)
for _, childNode := range node.Children() {
Walk(visitor, childNode)
}
}