org.apache.groovy.parser.antlr4

Class SemanticPredicates

java.lang.Object

org.apache.groovy.parser.antlr4.SemanticPredicates

public class SemanticPredicates
extends java.lang.Object

Some semantic predicates for altering the behaviour of the lexer and parser

Author:

Daniel.Sun Created on 2016/08/20

Constructor Summary

Constructors

Constructor and Description
SemanticPredicates()

Method Summary

Modifier and Type	Method and Description
static boolean	isFollowedBy(org.antlr.v4.runtime.CharStream cs, char... chars)
static boolean	isFollowedByJavaLetterInGString(org.antlr.v4.runtime.CharStream cs)
static boolean	isFollowedByWhiteSpaces(org.antlr.v4.runtime.CharStream cs)
static boolean	isFollowingMethodName(int t) Check whether following a method name of command expression.
static boolean	isInvalidLocalVariableDeclaration(org.antlr.v4.runtime.TokenStream ts) Distinguish between local variable declaration and method call, e.g.
static boolean	isInvalidMethodDeclaration(org.antlr.v4.runtime.TokenStream ts) Distinguish between method declaration and method call/constructor declaration

Methods inherited from class java.lang.Object

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

Constructor Detail

SemanticPredicates

public SemanticPredicates()

Method Detail

isFollowedByWhiteSpaces

public static boolean isFollowedByWhiteSpaces(org.antlr.v4.runtime.CharStream cs)

isFollowedBy

public static boolean isFollowedBy(org.antlr.v4.runtime.CharStream cs,
                                   char... chars)

isFollowedByJavaLetterInGString

public static boolean isFollowedByJavaLetterInGString(org.antlr.v4.runtime.CharStream cs)

isFollowingMethodName

public static boolean isFollowingMethodName(int t)

Check whether following a method name of command expression. Method name should not end with "2: arguments" and "3: closure"

Parameters:

t - the type of pathExpression

Returns:

isInvalidMethodDeclaration

public static boolean isInvalidMethodDeclaration(org.antlr.v4.runtime.TokenStream ts)

Distinguish between method declaration and method call/constructor declaration

isInvalidLocalVariableDeclaration

public static boolean isInvalidLocalVariableDeclaration(org.antlr.v4.runtime.TokenStream ts)

Distinguish between local variable declaration and method call, e.g. `a b`