yq/pkg/yqlib/operator_alternative.go
2021-02-11 10:58:40 +11:00

29 lines
736 B
Go

package yqlib
import (
"container/list"
)
// corssFunction no matches
// can boolean use crossfunction
func alternativeOperator(d *dataTreeNavigator, matchingNodes *list.List, expressionNode *ExpressionNode) (*list.List, error) {
log.Debugf("-- alternative")
return crossFunction(d, matchingNodes, expressionNode, alternativeFunc)
}
func alternativeFunc(d *dataTreeNavigator, lhs *CandidateNode, rhs *CandidateNode) (*CandidateNode, error) {
lhs.Node = unwrapDoc(lhs.Node)
rhs.Node = unwrapDoc(rhs.Node)
log.Debugf("Alternative LHS: %v", lhs.Node.Tag)
log.Debugf("- RHS: %v", rhs.Node.Tag)
isTrue, err := isTruthy(lhs)
if err != nil {
return nil, err
} else if isTrue {
return lhs, nil
}
return rhs, nil
}