The order of the elements is the same as that of the elements in the Block
array returned by the basicBlocks
method. If a Block
object is at the i-th position in the Block
array, then the Node
object referring to that Block
object is at the i-th position in the array returned by this method. For every array element node
, its index in the array is equivalent to node.block().index()
.
@return an array of the tree nodes, or null if the method is abstract.
@see Node#block()
@see Block#index()
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