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ITreeAdaptorErrorNode Method

Return a tree node representing an error. This node records the tokens consumed during error recovery. The start token indicates the input symbol at which the error was detected. The stop token indicates the last symbol consumed during recovery.

Namespace:  Stimulsoft.Data.Expressions.Antlr.Runtime.Tree
Assembly:  Stimulsoft.Data (in Stimulsoft.Data.dll) Version: 2019.3.1.0
Syntax
Copy
Object ErrorNode(
	ITokenStream input,
	IToken start,
	IToken stop,
	RecognitionException e
)

Parameters

input
Type: Stimulsoft.Data.Expressions.Antlr.RuntimeITokenStream

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start
Type: Stimulsoft.Data.Expressions.Antlr.RuntimeIToken

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stop
Type: Stimulsoft.Data.Expressions.Antlr.RuntimeIToken

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e
Type: Stimulsoft.Data.Expressions.Antlr.RuntimeRecognitionException

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Return Value

Type: Object

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Remarks
You must specify the input stream so that the erroneous text can be packaged up in the error node. The exception could be useful to some applications; default implementation stores ptr to it in the CommonErrorNode. This only makes sense during token parsing, not tree parsing. Tree parsing should happen only when parsing and tree construction succeed.
See Also