mirror of https://github.com/mikefarah/yq.git
37 lines
1.1 KiB
Go
37 lines
1.1 KiB
Go
package yqlib
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func unionOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
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log.Debug("unionOperator")
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log.Debug("context: %v", NodesToString(context.MatchingNodes))
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lhs, err := d.GetMatchingNodes(context, expressionNode.Lhs)
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if err != nil {
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return Context{}, err
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}
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log.Debug("lhs: %v", NodesToString(lhs.MatchingNodes))
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log.Debug("rhs input: %v", NodesToString(context.MatchingNodes))
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log.Debug("rhs: %v", expressionNode.Rhs.Operation.toString())
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rhs, err := d.GetMatchingNodes(context, expressionNode.Rhs)
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if err != nil {
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return Context{}, err
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}
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log.Debug("lhs: %v", lhs.ToString())
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log.Debug("rhs: %v", rhs.ToString())
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// this can happen when both expressions modify the context
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// instead of creating their own.
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/// (.foo = "bar"), (.thing = "cat")
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if rhs.MatchingNodes != lhs.MatchingNodes {
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for el := rhs.MatchingNodes.Front(); el != nil; el = el.Next() {
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node := el.Value.(*CandidateNode)
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log.Debug("processing %v", NodeToString(node))
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lhs.MatchingNodes.PushBack(node)
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}
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}
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log.Debug("all together: %v", lhs.ToString())
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return lhs, nil
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}
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