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operator_map.go
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/
operator_map.go
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package yqlib
import (
"container/list"
)
func mapValuesOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
//run expression against entries
// splat toEntries and pipe it into Rhs
splatted, err := splat(context.SingleChildContext(candidate), traversePreferences{})
if err != nil {
return Context{}, err
}
assignUpdateExp := &ExpressionNode{
Operation: &Operation{OperationType: assignOpType, UpdateAssign: true},
RHS: expressionNode.RHS,
}
_, err = assignUpdateOperator(d, splatted, assignUpdateExp)
if err != nil {
return Context{}, err
}
}
return context, nil
}
func mapOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
var results = list.New()
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
//run expression against entries
// splat toEntries and pipe it into Rhs
splatted, err := splat(context.SingleChildContext(candidate), traversePreferences{})
if err != nil {
return Context{}, err
}
result, err := d.GetMatchingNodes(splatted, expressionNode.RHS)
log.Debug("expressionNode.Rhs %v", expressionNode.RHS.Operation.OperationType)
log.Debug("result %v", result)
if err != nil {
return Context{}, err
}
selfExpression := &ExpressionNode{Operation: &Operation{OperationType: selfReferenceOpType}}
collected, err := collectTogether(d, result, selfExpression)
if err != nil {
return Context{}, err
}
collected.Node.Style = unwrapDoc(candidate.Node).Style
results.PushBack(collected)
}
return context.ChildContext(results), nil
}