JavaDDGBuilder.java 文件源码

/**
 * Get the original program text for the given parser-rule context.
 * This is required for preserving whitespaces.
 */
private String getOriginalCodeText(ParserRuleContext ctx) {
    int start = ctx.start.getStartIndex();
    int stop = ctx.stop.getStopIndex();
    Interval interval = new Interval(start, stop);
    return ctx.start.getInputStream().getText(interval);
}