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Added variables

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This commit is contained in:
Mike Farah
2021-02-11 10:58:40 +11:00
parent 5c73132c8e
commit 85ec32e3db
9 changed files with 160 additions and 44 deletions
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pkg/yqlib/operator_traverse_path.go
+18 -2
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@@ -20,7 +20,7 @@ func splat(d *dataTreeNavigator, context Context, prefs traversePreferences) (Co
}
func traversePathOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
log.Debugf("-- Traversing")
log.Debugf("-- traversePathOperator")
var matches = list.New()
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
@@ -75,6 +75,16 @@ func traverse(d *dataTreeNavigator, context Context, matchingNode *CandidateNode
}
func traverseArrayOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
//lhs may update the variable context, we should pass that into the RHS
// BUT we still return the original context back (see jq)
// https://stedolan.github.io/jq/manual/#Variable/SymbolicBindingOperator:...as$identifier|...
lhs, err := d.GetMatchingNodes(context, expressionNode.Lhs)
if err != nil {
return Context{}, err
}
// rhs is a collect expression that will yield indexes to retreive of the arrays
rhs, err := d.GetMatchingNodes(context, expressionNode.Rhs)
@@ -83,7 +93,13 @@ func traverseArrayOperator(d *dataTreeNavigator, context Context, expressionNode
}
var indicesToTraverse = rhs.MatchingNodes.Front().Value.(*CandidateNode).Node.Content
return traverseNodesWithArrayIndices(context, indicesToTraverse, traversePreferences{})
//now we traverse the result of the lhs against the indices we found
result, err := traverseNodesWithArrayIndices(lhs, indicesToTraverse, traversePreferences{})
if err != nil {
return Context{}, err
}
return context.ChildContext(result.MatchingNodes), nil
}
func traverseNodesWithArrayIndices(context Context, indicesToTraverse []*yaml.Node, prefs traversePreferences) (Context, error) {