Method requireToken

src/core/parser.js:126–130

(value, type)

    }

    requireToken(value, type) {
        var token = this.matchToken(value, type);
        if (token) return token;
        this.raiseExpected(value);
    }

    peekToken(value, peek, type) {
        return this.tokens.peekToken(value, peek, type);