Package com.espertech.esper.compiler.internal.parse

Class ASTUtil

java.lang.Object

com.espertech.esper.compiler.internal.parse.ASTUtil

public class ASTUtil
extends Object

Utility class for AST node handling.

Constructor Summary

Constructors

Constructor	Description
ASTUtil()

Method Summary

Modifier and Type	Method	Description
static void	dumpAST(PrintWriter printer, org.antlr.v4.runtime.tree.Tree ast, int ident)
static void	dumpAST(org.antlr.v4.runtime.tree.Tree ast)	Dump the AST node to system.out.
static int	getAssertTerminatedTokenType(org.antlr.v4.runtime.tree.ParseTree child)
static List<String>	getIdentList(EsperEPL2GrammarParser.ColumnListContext ctx)
static List<String>	getIdentList(EsperEPL2GrammarParser.ColumnListKeywordAllowedContext ctx)
static String	getPropertyName(EsperEPL2GrammarParser.ChainableContext ctx, int startNode)
static int	getRuleIndexIfProvided(org.antlr.v4.runtime.tree.ParseTree tree)
static String	getStreamNameUnescapedOptional(EsperEPL2GrammarParser.IdentOrTickedContext ctx)
static boolean	isRecursiveParentRule(org.antlr.v4.runtime.ParserRuleContext ctx, Set<Integer> rulesIds)
static boolean	isTerminatedOfType(org.antlr.v4.runtime.tree.Tree child, int tokenType)
static String	printNode(org.antlr.v4.runtime.tree.Tree node)
static void	printTokens(org.antlr.v4.runtime.CommonTokenStream tokens)	Print the token stream to the logger.
static String	unescapeClassIdent(EsperEPL2GrammarParser.ClassIdentifierContext classIdentCtx)
static String	unescapeSlashIdentifier(EsperEPL2GrammarParser.SubstitutionSlashIdentContext ctx)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ASTUtil

public ASTUtil()

Method Details

getIdentList

public static List<String> getIdentList(EsperEPL2GrammarParser.ColumnListKeywordAllowedContext ctx)

getIdentList

public static List<String> getIdentList(EsperEPL2GrammarParser.ColumnListContext ctx)

isTerminatedOfType

public static boolean isTerminatedOfType(org.antlr.v4.runtime.tree.Tree child,
 int tokenType)

getRuleIndexIfProvided

public static int getRuleIndexIfProvided(org.antlr.v4.runtime.tree.ParseTree tree)

getAssertTerminatedTokenType

public static int getAssertTerminatedTokenType(org.antlr.v4.runtime.tree.ParseTree child)

printNode

public static String printNode(org.antlr.v4.runtime.tree.Tree node)

isRecursiveParentRule

public static boolean isRecursiveParentRule(org.antlr.v4.runtime.ParserRuleContext ctx,
 Set<Integer> rulesIds)

dumpAST

public static void dumpAST(org.antlr.v4.runtime.tree.Tree ast)

Dump the AST node to system.out.

Parameters:

ast - to dump

dumpAST

public static void dumpAST(PrintWriter printer,
 org.antlr.v4.runtime.tree.Tree ast,
 int ident)

printTokens

public static void printTokens(org.antlr.v4.runtime.CommonTokenStream tokens)

Print the token stream to the logger.

Parameters:

tokens - to print

getPropertyName

public static String getPropertyName(EsperEPL2GrammarParser.ChainableContext ctx,
 int startNode)

unescapeClassIdent

public static String unescapeClassIdent(EsperEPL2GrammarParser.ClassIdentifierContext classIdentCtx)

unescapeSlashIdentifier

public static String unescapeSlashIdentifier(EsperEPL2GrammarParser.SubstitutionSlashIdentContext ctx)

getStreamNameUnescapedOptional

public static String getStreamNameUnescapedOptional(EsperEPL2GrammarParser.IdentOrTickedContext ctx)