@xmirror/java-syntax-locator/src/index.mjs

java syntax locator based on Antlr

import antlr4 from 'antlr4';
import JavaLexer from './parser/JavaLexer.mjs';
import JavaParser from './parser/JavaParser.mjs';
import { LocationVisitor } from './visitor/LocationVisitor.mjs';

/**
 * @param {string} input 
 * @returns json object representing the location information generated from input
 */
export function getLocation(input) {
	const chars = new antlr4.InputStream(input);
	const lexer = new JavaLexer(chars);
	const tokens = new antlr4.CommonTokenStream(lexer);
	const parser = new JavaParser(tokens);
	const cu = parser.compilationUnit();
	const visitor = new LocationVisitor();
	cu.accept(visitor);
	return visitor.javaFileToJson;
}