ANTLR Runtime Source Code

ANTLR is a powerful parser generator for multiple programming languages including Java.

ANTLR contains 2 major modules:

  • Runtime - For building and executing parsers/lexers generated in Java.
  • Tool (The Parser Generator) - For generating parsers/lexers Java class.

ANTLR Runtime Source Code files are provided in the distribution packge (antlr4-4.10.1.zip). You can download them at ANTLR Website.

You can also browse the source code below:

✍: FYIcenter

org/antlr/v4/runtime/atn/EpsilonTransition.java

/*
 * Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
 * Use of this file is governed by the BSD 3-clause license that
 * can be found in the LICENSE.txt file in the project root.
 */

package org.antlr.v4.runtime.atn;

public final class EpsilonTransition extends Transition {

	private final int outermostPrecedenceReturn;

	public EpsilonTransition(ATNState target) {
		this(target, -1);
	}

	public EpsilonTransition(ATNState target, int outermostPrecedenceReturn) {
		super(target);
		this.outermostPrecedenceReturn = outermostPrecedenceReturn;
	}

	/**
	 * @return the rule index of a precedence rule for which this transition is
	 * returning from, where the precedence value is 0; otherwise, -1.
	 *
	 * @see ATNConfig#isPrecedenceFilterSuppressed()
	 * @see ParserATNSimulator#applyPrecedenceFilter(ATNConfigSet)
	 * @since 4.4.1
	 */
	public int outermostPrecedenceReturn() {
		return outermostPrecedenceReturn;
	}

	@Override
	public int getSerializationType() {
		return EPSILON;
	}

	@Override
	public boolean isEpsilon() { return true; }

	@Override
	public boolean matches(int symbol, int minVocabSymbol, int maxVocabSymbol) {
		return false;
	}

	@Override

	public String toString() {
		return "epsilon";
	}
}

org/antlr/v4/runtime/atn/EpsilonTransition.java

 

Or download all of them as a single archive file:

File name: antlr-runtime-4.10.1-sources.jar
File size: 308953 bytes
Release date: 2022-04-15
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ANTLR Tool Source Code

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2018-10-21, 31003👍, 0💬