import { STContext } from "../../STContext";
import { STObject } from "../../STObject";
export interface ASTNode {
    evaluate(context: STContext): STObject;
}
export declare class ExpressionListNode implements ASTNode {
    readonly locals: string[];
    readonly expressions: ASTNode[];
    evaluate(context: STContext): STObject;
    toString(): string;
}
export declare class BlockNode implements ASTNode {
    readonly implicitParameters: string[];
    readonly explicitParameters: string[];
    readonly value: ASTNode;
    constructor(value: ASTNode, implicitParameters: string[], explicitParameters: string[]);
    evaluate(context: STContext): STObject;
    toString(): string;
}
export declare class LiteralNode implements ASTNode {
    readonly value: STObject;
    constructor(value: STObject);
    evaluate(context: STContext): STObject;
    toString(): string;
}
export declare class VariableNode implements ASTNode {
    private readonly variableName;
    constructor(variableName: string);
    evaluate(context: STContext): STObject;
    toString(): string;
}
export declare class MessageNode implements ASTNode {
    readonly receiver: ASTNode;
    readonly labels: string[];
    readonly values: ASTNode[];
    constructor(receiver: ASTNode);
    evaluate(context: STContext): STObject;
    toString(): string;
}
export declare class AssignmentNode implements ASTNode {
    private readonly variable;
    private readonly value;
    constructor(variable: string, value: ASTNode);
    evaluate(context: STContext): STObject;
    toString(): string;
}
export declare class NilNode implements ASTNode {
    private readonly value;
    constructor(origin: string | STObject);
    evaluate(context: STContext): STObject;
    toString(): string;
}