823984418 / jall Goto Github PK

java -jar jall.jar language.ll show

java -jar jall.jar language.ll java

// 读取下一个词法类型
void next();
// 将下一个词法单元读取
Token push();
// 检查下一个词法类型
void check(TokenType needTokenType) throws Exceptions;
// 返回词法不匹配的错误
Exceptions need(TokenType has,TokenType... needs);

// 下一个词法类型
TokenType token;

Exceptions,TokenType,Token

空,int,String

Queue<Token> queue;

void next() {
    readToken();
    token = readedTokenType;
    queue.add(readedToken);
}

Token push() {
    return queue.remove();
}

void check(TokenType needTokenType) throws Exceptions {
    if(token != needTokenType){
        throw need(token, needTokenType);
    }
}

Exceptions need(TokenType token,TokenType... needTokenTypes) {
    return new Exceptions("...");
}