export declare enum LiteralTag {
    NOTHING = 1,
    TRUE = 2,
    FALSE = 3,
    INTEGER = 4,
    FLOAT_64 = 5,
    TEXT = 6
}
export declare type Literal = LiteralNothing | LiteralFalse | LiteralTrue | LiteralInteger | LiteralFloat64 | LiteralText;
export declare abstract class BaseLiteral {
    abstract tag: LiteralTag;
}
export declare class LiteralNothing extends BaseLiteral {
    readonly tag = LiteralTag.NOTHING;
}
export declare class LiteralTrue extends BaseLiteral {
    readonly tag = LiteralTag.TRUE;
}
export declare class LiteralFalse extends BaseLiteral {
    readonly tag = LiteralTag.FALSE;
}
export declare class LiteralInteger extends BaseLiteral {
    readonly value: bigint;
    readonly tag = LiteralTag.INTEGER;
    constructor(value: bigint);
}
export declare class LiteralFloat64 extends BaseLiteral {
    readonly value: number;
    readonly tag = LiteralTag.FLOAT_64;
    constructor(value: number);
}
export declare class LiteralText extends BaseLiteral {
    readonly value: string;
    readonly tag = LiteralTag.TEXT;
    constructor(value: string);
}