com.espertech.esper.compiler.internal.parse.ParseRuleSelector Maven / Gradle / Ivy
/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
***************************************************************************************
*/
package com.espertech.esper.compiler.internal.parse;
import com.espertech.esper.compiler.internal.generated.EsperEPL2GrammarParser;
import org.antlr.v4.runtime.RecognitionException;
import org.antlr.v4.runtime.tree.Tree;
/**
* For selection of the parse rule to use.
*/
public interface ParseRuleSelector {
/**
* Implementations can invoke a parse rule of their choice on the parser.
*
* @param parser - to invoke parse rule on
* @return the AST tree as a result of the parsing
* @throws RecognitionException is a parse exception
*/
public Tree invokeParseRule(EsperEPL2GrammarParser parser) throws RecognitionException;
}