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Refactoring traverse

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This commit is contained in:
Mike Farah 2020-12-27 09:51:34 +11:00
parent 98e8b3479f
commit 80f187f1a4
1 changed files with 34 additions and 30 deletions
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52
pkg/yqlib/operator_traverse_path.go
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@ -60,8 +60,33 @@ func traverse(d *dataTreeNavigator, matchingNode *CandidateNode, operation *Oper
switch value.Kind {
case yaml.MappingNode:
log.Debug("its a map with %v entries", len(value.Content)/2)
return traverseMap(matchingNode, operation)
case yaml.SequenceNode:
log.Debug("its a sequence of %v things!", len(value.Content))
return traverseArray(matchingNode, operation)
case yaml.AliasNode:
log.Debug("its an alias!")
matchingNode.Node = matchingNode.Node.Alias
return traverse(d, matchingNode, operation)
case yaml.DocumentNode:
log.Debug("digging into doc node")
return traverse(d, &CandidateNode{
Node: matchingNode.Node.Content[0],
Document: matchingNode.Document}, operation)
default:
return nil, nil
}
}
func keyMatches(key *yaml.Node, pathNode *Operation) bool {
return pathNode.Value == "[]" || Match(key.Value, pathNode.StringValue)
}
func traverseMap(matchingNode *CandidateNode, operation *Operation) ([]*CandidateNode, error) {
var newMatches = orderedmap.NewOrderedMap()
err := traverseMap(newMatches, matchingNode, operation)
err := doTraverseMap(newMatches, matchingNode, operation)
if err != nil {
return nil, err
@ -88,30 +113,9 @@ func traverse(d *dataTreeNavigator, matchingNode *CandidateNode, operation *Oper
i++
}
return arrayMatches, nil
case yaml.SequenceNode:
log.Debug("its a sequence of %v things!", len(value.Content))
return traverseArray(matchingNode, operation)
case yaml.AliasNode:
log.Debug("its an alias!")
matchingNode.Node = matchingNode.Node.Alias
return traverse(d, matchingNode, operation)
case yaml.DocumentNode:
log.Debug("digging into doc node")
return traverse(d, &CandidateNode{
Node: matchingNode.Node.Content[0],
Document: matchingNode.Document}, operation)
default:
return nil, nil
}
}
func keyMatches(key *yaml.Node, pathNode *Operation) bool {
return pathNode.Value == "[]" || Match(key.Value, pathNode.StringValue)
}
func traverseMap(newMatches *orderedmap.OrderedMap, candidate *CandidateNode, operation *Operation) error {
func doTraverseMap(newMatches *orderedmap.OrderedMap, candidate *CandidateNode, operation *Operation) error {
// value.Content is a concatenated array of key, value,
// so keys are in the even indexes, values in odd.
// merge aliases are defined first, but we only want to traverse them
@ -161,7 +165,7 @@ func traverseMergeAnchor(newMatches *orderedmap.OrderedMap, originalCandidate *C
Path: originalCandidate.Path,
Document: originalCandidate.Document,
}
return traverseMap(newMatches, candidateNode, operation)
return doTraverseMap(newMatches, candidateNode, operation)
case yaml.SequenceNode:
for _, childValue := range value.Content {
err := traverseMergeAnchor(newMatches, originalCandidate, childValue, operation)