yq/pkg/yqlib/operator_alternative.go

25 lines
703 B
Go

package yqlib
func alternativeOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
log.Debugf("-- alternative")
return crossFunction(d, context.ReadOnlyClone(), expressionNode, alternativeFunc, true)
}
func alternativeFunc(d *dataTreeNavigator, context Context, lhs *CandidateNode, rhs *CandidateNode) (*CandidateNode, error) {
if lhs == nil {
return rhs, nil
}
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
}