import { Expression, ScopeType } from "../types.js";
import { BaseNode } from "./base.js";
export type Literal = NumberLiteral | UnitLiteral | MultiLineStringLiteral | StringLiteral | VariableNameLiteral | BooleanLiteral | NullLiteral;
export type NumberLiteral = BaseNode & {
    type: "number";
    value: string;
};
export type TimeUnitLiteral = BaseNode & {
    type: "unitLiteral";
    value: string;
    unit: "ms" | "s" | "m" | "h" | "d" | "w";
    canonicalValue: number;
    dimension: "time";
};
export type CostUnitLiteral = BaseNode & {
    type: "unitLiteral";
    value: string;
    unit: "$";
    canonicalValue: number;
    dimension: "cost";
};
export type ByteUnitLiteral = BaseNode & {
    type: "unitLiteral";
    value: string;
    unit: "b" | "kb" | "mb" | "gb";
    canonicalValue: number;
    dimension: "bytes";
};
export type UnitLiteral = TimeUnitLiteral | CostUnitLiteral | ByteUnitLiteral;
export declare function formatUnitLiteral(lit: Pick<UnitLiteral, "value" | "unit">): string;
export type StringLiteral = BaseNode & {
    type: "string";
    segments: PromptSegment[];
    delimiter?: '"' | "'" | "`";
};
export type MultiLineStringLiteral = BaseNode & {
    type: "multiLineString";
    segments: PromptSegment[];
};
export type VariableNameLiteral = BaseNode & {
    type: "variableName";
    value: string;
    scope?: ScopeType;
    /** For block/blockArgs scope only: how many block scopes up the lexical
     *  chain the owning block is. 0 (or absent) = the current/innermost block. */
    blockDepth?: number;
    async?: boolean;
};
export type BooleanLiteral = BaseNode & {
    type: "boolean";
    value: boolean;
};
export type NullLiteral = BaseNode & {
    type: "null";
};
export type PromptSegment = TextSegment | InterpolationSegment;
export type TextSegment = {
    type: "text";
    value: string;
};
export type InterpolationSegment = BaseNode & {
    type: "interpolation";
    expression: Expression;
};
export type RegexLiteral = BaseNode & {
    type: "regex";
    pattern: string;
    flags: string;
};
export type RawCode = BaseNode & {
    type: "rawCode";
    value: string;
};