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RewriteRuleSubtreeStreamNextNode Method

Treat next element as a single node even if it's a subtree. This is used instead of next() when the result has to be a tree root node. Also prevents us from duplicating recently-added children; e.g., ^(type ID)+ adds ID to type and then 2nd iteration must dup the type node, but ID has been added.

Namespace:  Stimulsoft.Data.Expressions.Antlr.Runtime.Tree
Assembly:  Stimulsoft.Data (in Stimulsoft.Data.dll) Version: 2019.3.1.0
Syntax
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public virtual Object NextNode()

Return Value

Type: Object

[Missing <returns> documentation for "M:Stimulsoft.Data.Expressions.Antlr.Runtime.Tree.RewriteRuleSubtreeStream.NextNode"]

Remarks
Referencing a rule result twice is ok; dup entire tree as we can't be adding trees as root; e.g., expr expr. Hideous code duplication here with super.next(). Can't think of a proper way to refactor. This needs to always call dup node and super.next() doesn't know which to call: dup node or dup tree.
See Also