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38 lines
826 B
Go
38 lines
826 B
Go
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package treeops
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import (
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"github.com/elliotchance/orderedmap"
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)
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func SelectOperator(d *dataTreeNavigator, matchingNodes *orderedmap.OrderedMap, pathNode *PathTreeNode) (*orderedmap.OrderedMap, error) {
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log.Debugf("-- selectOperation")
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var results = orderedmap.NewOrderedMap()
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for el := matchingNodes.Front(); el != nil; el = el.Next() {
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candidate := el.Value.(*CandidateNode)
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rhs, err := d.getMatchingNodes(nodeToMap(candidate), pathNode.Rhs)
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if err != nil {
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return nil, err
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}
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// grab the first value
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first := rhs.Front()
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if first != nil {
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result := first.Value.(*CandidateNode)
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includeResult, errDecoding := isTruthy(result)
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if errDecoding != nil {
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return nil, errDecoding
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}
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if includeResult {
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results.Set(candidate.GetKey(), candidate)
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}
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}
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}
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return results, nil
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}
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